diff options
| -rwxr-xr-x | Makefile | 8 | ||||
| -rw-r--r-- | README.md | 10 | ||||
| -rw-r--r-- | arr.c | 255 | ||||
| -rw-r--r-- | base.h | 149 | ||||
| -rw-r--r-- | cropper.c | 0 | ||||
| -rw-r--r-- | gl.c | 203 | ||||
| -rw-r--r-- | lib/glcorearb.h | 5950 | ||||
| -rw-r--r-- | lib/khrplatform.h | 290 | ||||
| -rw-r--r-- | main.c | 468 | ||||
| -rw-r--r-- | math.c | 1128 | ||||
| -rw-r--r-- | stb_image.h | 7762 | ||||
| -rw-r--r-- | stb_image_resize.h | 2631 | ||||
| -rw-r--r-- | stb_image_write.h | 1690 | ||||
| -rw-r--r-- | time.c | 93 | ||||
| -rw-r--r-- | util.c | 339 |
15 files changed, 20976 insertions, 0 deletions
diff --git a/Makefile b/Makefile new file mode 100755 index 0000000..47b26c7 --- /dev/null +++ b/Makefile @@ -0,0 +1,8 @@ +ADDITIONAL_FLAGS=$(CFLAGS) -Wall -Wextra -Wshadow -Wpedantic -pedantic -std=gnu11 -Wno-unused-function +DEBUG_CFLAGS=$(ADDITIONAL_FLAGS) -O0 -g -DDEBUG=1 -fsanitize=undefined -fno-sanitize-recover=undefined +RELEASE_CFLAGS=$(ADDITIONAL_FLAGS) -O3 -s +LIBS=-lGL -lSDL2 -I/usr/include/SDL2 -lm +cropper: *.[ch] + $(CC) $(DEBUG_CFLAGS) -o cropper main.c $(LIBS) +release: *.[ch] + $(CC) $(RELEASE_CFLAGS) -o cropper main.c $(LIBS) diff --git a/README.md b/README.md new file mode 100644 index 0000000..22454bf --- /dev/null +++ b/README.md @@ -0,0 +1,10 @@ +# Cropper + +A very quickly put-together (Linux-only) image cropping tool. + +If you have a large number of images, and you want to crop out bits of those +images all with the same aspect ratio, this is the tool for you. + +To compile, run `make release`. + +There may be bugs; I won't fix them (sorry). @@ -0,0 +1,255 @@ +#ifndef ARR_C_ +#define ARR_C_ +/* +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or +distribute this software, either in source code form or as a compiled +binary, for any purpose, commercial or non-commercial, and by any +means. +In jurisdictions that recognize copyright laws, the author or authors +of this software dedicate any and all copyright interest in the +software to the public domain. We make this dedication for the benefit +of the public at large and to the detriment of our heirs and +successors. We intend this dedication to be an overt act of +relinquishment in perpetuity of all present and future rights to this +software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. +For more information, please refer to <http://unlicense.org/> +*/ + +// functions in this file suffixed with _ are not meant to be used outside here, unless you +// know what you're doing + +// IMPORTANT NOTE: If you are using this with structures containing `long double`s, do +// #define ARR_LONG_DOUBLE +// before including this file + +#include <stddef.h> +typedef union { + long num; + void *ptr; + void (*fnptr)(void); +#ifdef ARR_LONG_DOUBLE + long +#endif + double flt; +} ArrMaxAlign; +#if __STDC_VERSION__ < 199901L && !defined inline +#define inline +#endif + + +typedef struct { + u32 len; + u32 cap; + ArrMaxAlign data[]; +} ArrHeader; + +// watch out! do not call this function if arr is NULL. +static inline ArrHeader *arr_hdr_(void *arr) { + return (ArrHeader *)((char *)arr - offsetof(ArrHeader, data)); +} + +static inline u32 arr_len(void *arr) { + return arr ? arr_hdr_(arr)->len : 0; +} + +static inline unsigned arr_lenu(void *arr) { + return (unsigned)arr_len(arr); +} + +// grow array to fit one more member +static void *arr_grow1_(void *arr, size_t member_size) { + if (arr) { + ArrHeader *hdr = arr_hdr_(arr); + if (hdr->len >= hdr->cap) { + u32 new_capacity = hdr->cap * 2; + ArrHeader *old_hdr = hdr; + hdr = (ArrHeader *)realloc(old_hdr, sizeof(ArrHeader) + new_capacity * member_size); + if (hdr) { + hdr->cap = new_capacity; + } else { + free(old_hdr); + return NULL; + } + } + return hdr->data; + } else { + // create a new array + u32 initial_capacity = 2; // allocate enough space for two members + ArrHeader *ret = (ArrHeader *)calloc(1, sizeof(ArrHeader) + initial_capacity * member_size); + if (ret) { + ret->cap = initial_capacity; + return ret->data; + } else { + return NULL; + } + } +} + +static inline void *arr_add_ptr_(void **arr, size_t member_size) { + u8 *ret; + *arr = arr_grow1_(*arr, member_size); + if (*arr) { + ret = (u8 *)*arr + member_size * (arr_hdr_(*arr)->len++); + memset(ret, 0, member_size); + } else { + ret = NULL; + } + return ret; +} + +static void arr_reserve_(void **arr, size_t member_size, size_t n) { + if (n >= U32_MAX-1) { + // too big; free arr. + if (*arr) free(arr_hdr_(*arr)); + *arr = NULL; + } + + if (!*arr) { + // create a new array with capacity n+1 + ArrHeader *hdr = calloc(1, sizeof(ArrHeader) + (n+1) * member_size); + if (hdr) { + hdr->cap = (u32)n+1; + *arr = hdr->data; + } + } else { + // increase capacity of array + ArrHeader *hdr = arr_hdr_(*arr); + u32 curr_cap = hdr->cap; + if (n > curr_cap) { + ArrHeader *old_hdr = hdr; + while (n > curr_cap) { + if (curr_cap < U32_MAX/2) + curr_cap *= 2; + else + curr_cap = U32_MAX; + } + hdr = realloc(hdr, sizeof(ArrHeader) + curr_cap * member_size); + if (hdr) { + hdr->cap = curr_cap; + } else { + // growing failed + free(old_hdr); + *arr = NULL; + return; + } + } + *arr = hdr->data; + } +} + +static void arr_set_len_(void **arr, size_t member_size, size_t n) { + arr_reserve_(arr, member_size, n); + if (*arr) { + ArrHeader *hdr = arr_hdr_(*arr); + if (n > hdr->len) { + // zero new elements + memset((char *)hdr->data + hdr->len, 0, (n - hdr->len) * member_size); + } + hdr->len = (u32)n; + } +} + +static void *arr_remove_(void *arr, size_t member_size, size_t index) { + ArrHeader *hdr = arr_hdr_(arr); + assert(index < hdr->len); + memmove((char *)arr + index * member_size, (char *)arr + (index+1) * member_size, (hdr->len - (index+1)) * member_size); + if (--hdr->len == 0) { + free(hdr); + return NULL; + } else { + return arr; + } +} + +#ifdef __cplusplus +#define arr_cast_typeof(a) (decltype(a)) +#elif defined __GNUC__ +#define arr_cast_typeof(a) (__typeof__(a)) +#else +#define arr_cast_typeof(a) +#endif + +#define arr__join2(a,b) a##b +#define arr__join(a,b) arr__join2(a,b) // macro used internally + +// if the array is not NULL, free it and set it to NULL +#define arr_free(a) do { if (a) { free(arr_hdr_(a)); (a) = NULL; } } while (0) +// a nice alias +#define arr_clear(a) arr_free(a) +// add an item to the array - if allocation fails, the array will be freed and set to NULL. +// (how this works: if we can successfully grow the array, increase the length and add the item.) +#define arr_add(a, x) do { if (((a) = arr_cast_typeof(a) arr_grow1_((a), sizeof *(a)))) ((a)[arr_hdr_(a)->len++] = (x)); } while (0) +// like arr_add, but instead of passing it the value, it returns a pointer to the value. returns NULL if allocation failed. +// the added item will be zero-initialized. +#define arr_addp(a) arr_cast_typeof(a) arr_add_ptr_((void **)&(a), sizeof *(a)) +// set the length of `a` to `n`, increasing the capacity if necessary. +// the newly-added elements are zero-initialized. +#define arr_qsort(a, cmp) qsort((a), arr_len(a), sizeof *(a), (cmp)) +#define arr_remove_last(a) do { assert(a); if (--arr_hdr_(a)->len == 0) arr_free(a); } while (0) +#define arr_remove(a, i) (void)((a) = arr_remove_((a), sizeof *(a), (i))) +#define arr_insert(a, i, x) do { u32 _index = (i); (a) = arr_cast_typeof(a) arr_grow1_((a), sizeof *(a)); \ + if (a) { memmove((a) + _index + 1, (a) + _index, (arr_len(a) - _index) * sizeof *(a));\ + (a)[_index] = x; \ + ++arr_hdr_(a)->len; } } while (0) +#define arr_pop_last(a) ((a)[--arr_hdr_(a)->len]) +#define arr_size_in_bytes(a) (arr_len(a) * sizeof *(a)) +#define arr_lastp(a) ((a) ? &(a)[arr_len(a)-1] : NULL) +#define arr_foreach_ptr_end(a, type, var, end) type *end = (a) + arr_len(a); \ + for (type *var = (a); var != end; ++var) +// Iterate through each element of the array, setting var to a pointer to the element. +// You can't use this like, e.g.: +// if (something) +// arr_foreach_ptr(a, int, i); +// You'll get an error. You will need to use braces because it expands to multiple statements. +// (we need to name the end pointer something unique, which is why there's that arr__join thing +// we can't just declare it inside the for loop, because type could be something like char *.) +#define arr_foreach_ptr(a, type, var) arr_foreach_ptr_end(a, type, var, arr__join(_foreach_end,__LINE__)) + +#define arr_reverse(a, type) do { \ + u64 _i, _len = arr_len(a); \ + for (_i = 0; 2*_i < _len; ++_i) { \ + type *_x = &(a)[_i]; \ + type *_y = &(a)[_len-1-_i]; \ + type _tmp; \ + _tmp = *_x; \ + *_x = *_y; \ + *_y = _tmp; \ + } \ + } while (0) + +// Ensure that enough space is allocated for n elements. +#define arr_reserve(a, n) arr_reserve_((void **)&(a), sizeof *(a), (n)) +// Similar to arr_reserve, but also sets the length of the array to n. +// Does NOT shrink the capacity of the array! This is on purpose (so that you can set the length to 0 +// and re-add a bunch of stuff without needing to allocate again). +#define arr_set_len(a, n) arr_set_len_((void **)&(a), sizeof *(a), (n)) + + +#ifndef NDEBUG +static void arr_test(void) { + u32 *arr = NULL; + u32 i; + assert(arr_len(arr) == 0); + for (i = 0; i < 10000; ++i) { + arr_add(arr, i*i); + } + assert(arr_len(arr) == 10000); + arr_remove_last(arr); + assert(arr_len(arr) == 9999); + for (i = 0; i < arr_len(arr); ++i) + assert(arr[i] == i*i); + while (arr_len(arr)) + arr_remove_last(arr); + assert(arr_len(arr) == 0); +} +#endif + +#endif // ARR_C_ @@ -0,0 +1,149 @@ +#ifndef BASE_H_ +#define BASE_H_ + +#ifndef DEBUG +#define NDEBUG 1 +#endif + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif + +#if _WIN32 +#include <windows.h> +#include <shlobj.h> +#include <dbghelp.h> +#define PATH_SEPARATOR '\\' +#define PATH_SEPARATOR_STR "\\" +// on windows, let the user use forwards slashes as well as backslashes +#define ALL_PATH_SEPARATORS "\\/" +#else +#define PATH_SEPARATOR '/' +#define PATH_SEPARATOR_STR "/" +#define ALL_PATH_SEPARATORS "/" +#endif + +#include <stdbool.h> +#include <inttypes.h> +#include <stdio.h> +#include <stddef.h> +#include <stdarg.h> +#include <float.h> +#include <limits.h> +#include <assert.h> +#if __linux__ || _WIN32 +#include <uchar.h> +#else +// OpenBSD has uchar.h but it doesn't seem to define char32_t ? +typedef uint32_t char32_t; +#endif + +#if !__TINYC__ && __STDC_VERSION__ >= 201112 +#define static_assert_if_possible(cond) _Static_assert(cond, "Static assertion failed"); +#else +#define static_assert_if_possible(cond) +#endif + +typedef uint8_t u8; +typedef uint16_t u16; +typedef uint32_t u32; +typedef uint64_t u64; + +// (for u8 and u16, you can use %u) +#define U32_FMT "%" PRIu32 +#define U64_FMT "%" PRIu64 +#define U8_MAX 0xff +#define U16_MAX 0xffff +#define U32_MAX 0xffffffff +#define U64_MAX 0xffffffffffffffff + +typedef int8_t i8; +typedef int16_t i16; +typedef int32_t i32; +typedef int64_t i64; + +// (for i8 and i16, you can use %d) +#define I32_FMT "%" PRId32 +#define I64_FMT "%" PRId64 +#define I8_MAX 0x7f +#define I16_MAX 0x7fff +#define I32_MAX 0x7fffffff +#define I64_MAX 0x7fffffffffffffff + +typedef unsigned int uint; +typedef unsigned long ulong; + +typedef long long llong; +typedef unsigned long long ullong; + +// allows +// switch (c) { +// case ANY_DIGIT: +// ... +// } +#define ANY_DIGIT '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9' + +#if __clang__ +#define ENUM_U8 typedef enum : u8 +#define ENUM_U8_END(name) name +#else +#define ENUM_U8 enum +#define ENUM_U8_END(name) ; typedef u8 name +#endif + +#if __clang__ +#define ENUM_U16 typedef enum : u16 +#define ENUM_U16_END(name) name +#else +#define ENUM_U16 enum +#define ENUM_U16_END(name) ; typedef u16 name +#endif + +#ifdef __GNUC__ +#define WarnUnusedResult __attribute__((warn_unused_result)) +#else +#define WarnUnusedResult +#endif + +#define Status bool WarnUnusedResult // false = error, true = success + +#define arr_count(a) (sizeof (a) / sizeof *(a)) + +#ifdef __GNUC__ +#define no_warn_start _Pragma("GCC diagnostic push") \ + _Pragma("GCC diagnostic ignored \"-Wpedantic\"") \ + _Pragma("GCC diagnostic ignored \"-Wsign-conversion\"") \ + _Pragma("GCC diagnostic ignored \"-Wsign-compare\"") \ + _Pragma("GCC diagnostic ignored \"-Wconversion\"") \ + _Pragma("GCC diagnostic ignored \"-Wimplicit-fallthrough\"") \ + _Pragma("GCC diagnostic ignored \"-Wunused-function\"") + +#define no_warn_end _Pragma("GCC diagnostic pop") +#else +#define no_warn_start +#define no_warn_end +#endif + +#if _WIN32 +static void print(char const *fmt, ...) { + char buf[256]; + va_list args; + va_start(args, fmt); + vsprintf_s(buf, sizeof buf, fmt, args); + va_end(args); + OutputDebugStringA(buf); +} +#else +#define print printf +#endif +#define println(...) print(__VA_ARGS__), print("\n") + +#if DEBUG +#define debug_print print +#define debug_println println +#else +#define debug_print(...) +#define debug_println(...) +#endif + +#endif diff --git a/cropper.c b/cropper.c new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/cropper.c @@ -0,0 +1,203 @@ +#include "lib/glcorearb.h" + +// macro trickery to avoid having to write everything twice +#define gl_for_each_proc(do)\ + do(DRAWARRAYS, DrawArrays)\ + do(DRAWELEMENTS, DrawElements)\ + do(GENTEXTURES, GenTextures)\ + do(DELETETEXTURES, DeleteTextures)\ + do(TEXIMAGE2D, TexImage2D)\ + do(BINDTEXTURE, BindTexture)\ + do(TEXPARAMETERI, TexParameteri)\ + do(GETERROR, GetError)\ + do(GETINTEGERV, GetIntegerv)\ + do(ENABLE, Enable)\ + do(DISABLE, Disable)\ + do(BLENDFUNC, BlendFunc)\ + do(DEPTHFUNC, DepthFunc)\ + do(VIEWPORT, Viewport)\ + do(CLEARCOLOR, ClearColor)\ + do(CLEAR, Clear)\ + do(FINISH, Finish)\ + do(PIXELSTOREI, PixelStorei)\ + do(CREATESHADER, CreateShader)\ + do(DELETESHADER, DeleteShader)\ + do(CREATEPROGRAM, CreateProgram)\ + do(SHADERSOURCE, ShaderSource)\ + do(GETSHADERIV, GetShaderiv)\ + do(GETSHADERINFOLOG, GetShaderInfoLog)\ + do(COMPILESHADER, CompileShader)\ + do(CREATEPROGRAM, CreateProgram)\ + do(DELETEPROGRAM, DeleteProgram)\ + do(ATTACHSHADER, AttachShader)\ + do(LINKPROGRAM, LinkProgram)\ + do(GETPROGRAMIV, GetProgramiv)\ + do(GETPROGRAMINFOLOG, GetProgramInfoLog)\ + do(USEPROGRAM, UseProgram)\ + do(GETATTRIBLOCATION, GetAttribLocation)\ + do(GETUNIFORMLOCATION, GetUniformLocation)\ + do(GENBUFFERS, GenBuffers)\ + do(DELETEBUFFERS, DeleteBuffers)\ + do(BINDBUFFER, BindBuffer)\ + do(BUFFERDATA, BufferData)\ + do(VERTEXATTRIBPOINTER, VertexAttribPointer)\ + do(VERTEXATTRIBIPOINTER, VertexAttribIPointer)\ + do(ENABLEVERTEXATTRIBARRAY, EnableVertexAttribArray)\ + do(DISABLEVERTEXATTRIBARRAY, DisableVertexAttribArray)\ + do(GENVERTEXARRAYS, GenVertexArrays)\ + do(DELETEVERTEXARRAYS, DeleteVertexArrays)\ + do(BINDVERTEXARRAY, BindVertexArray)\ + do(ACTIVETEXTURE, ActiveTexture)\ + do(UNIFORM1F, Uniform1f)\ + do(UNIFORM2F, Uniform2f)\ + do(UNIFORM3F, Uniform3f)\ + do(UNIFORM4F, Uniform4f)\ + do(UNIFORM1I, Uniform1i)\ + do(UNIFORM2I, Uniform2i)\ + do(UNIFORM3I, Uniform3i)\ + do(UNIFORM4I, Uniform4i)\ + do(UNIFORMMATRIX4FV, UniformMatrix2fv)\ + do(UNIFORMMATRIX4FV, UniformMatrix3fv)\ + do(UNIFORMMATRIX4FV, UniformMatrix4fv)\ + do(DEBUGMESSAGECALLBACK, DebugMessageCallback)\ + do(DEBUGMESSAGECONTROL, DebugMessageControl)\ + do(POLYGONMODE, PolygonMode)\ + do(GENFRAMEBUFFERS, GenFramebuffers)\ + do(BINDFRAMEBUFFER, BindFramebuffer)\ + do(FRAMEBUFFERTEXTURE2D, FramebufferTexture2D)\ + do(DELETEFRAMEBUFFERS, DeleteFramebuffers)\ + do(BLITFRAMEBUFFER, BlitFramebuffer)\ + do(DRAWBUFFER, DrawBuffer)\ + do(TEXIMAGE2DMULTISAMPLE, TexImage2DMultisample)\ + do(GENRENDERBUFFERS, GenRenderbuffers)\ + do(DELETERENDERBUFFERS, DeleteRenderbuffers)\ + do(BINDRENDERBUFFER, BindRenderbuffer)\ + do(RENDERBUFFERSTORAGE, RenderbufferStorage)\ + do(RENDERBUFFERSTORAGEMULTISAMPLE, RenderbufferStorageMultisample)\ + do(FRAMEBUFFERRENDERBUFFER, FramebufferRenderbuffer)\ + do(CHECKFRAMEBUFFERSTATUS, CheckFramebufferStatus) + +#define gl_declare_proc(upper, lower) static PFNGL##upper##PROC gl##lower; +gl_for_each_proc(gl_declare_proc) +#undef gl_declare_proc + +static void gl_get_procs(void) { +#if __GNUC__ && !__clang__ + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wpedantic" +#endif + #define gl_get_proc(upper, lower) gl##lower = (PFNGL##upper##PROC)SDL_GL_GetProcAddress("gl" #lower); + gl_for_each_proc(gl_get_proc) + #undef gl_get_proc +#if __GNUC__ && !__clang__ + #pragma GCC diagnostic pop +#endif +} + +#define BUFFER_BATCH_SIZE 8 +#define VARRAY_BATCH_SIZE 8 +static GLuint gl_buffers[BUFFER_BATCH_SIZE], gl_buffers_used = BUFFER_BATCH_SIZE; +static GLuint gl_varrays[VARRAY_BATCH_SIZE], gl_varrays_used = VARRAY_BATCH_SIZE; + + +static GLuint gl_gen_buffer(void) { + if (gl_buffers_used >= BUFFER_BATCH_SIZE) { + gl_buffers_used = 0; + glGenBuffers(BUFFER_BATCH_SIZE, gl_buffers); + } + return gl_buffers[gl_buffers_used++]; +} + +static GLuint gl_gen_vertex_array(void) { + if (gl_varrays_used >= VARRAY_BATCH_SIZE) { + gl_varrays_used = 0; + glGenVertexArrays(VARRAY_BATCH_SIZE, gl_varrays); + } + return gl_varrays[gl_varrays_used++]; +} + + +// compile a GLSL shader +static GLuint gl_compile_shader(char const *code, GLenum shader_type) { + GLuint shader = glCreateShader(shader_type); + glShaderSource(shader, 1, &code, NULL); + glCompileShader(shader); + GLint status = 0; + glGetShaderiv(shader, GL_COMPILE_STATUS, &status); + if (status == GL_FALSE) { + char log[1024] = {0}; + glGetShaderInfoLog(shader, sizeof log - 1, NULL, log); + debug_println("Error compiling shader: %s", log); + return 0; + } + return shader; +} + +// link together GL shaders +static GLuint gl_link_program(GLuint *shaders, size_t count) { + GLuint program = glCreateProgram(); + if (program) { + for (size_t i = 0; i < count; ++i) { + if (!shaders[i]) { + glDeleteProgram(program); + return 0; + } + glAttachShader(program, shaders[i]); + } + glLinkProgram(program); + GLint status = 0; + glGetProgramiv(program, GL_LINK_STATUS, &status); + if (status == GL_FALSE) { + char log[1024] = {0}; + glGetProgramInfoLog(program, sizeof log - 1, NULL, log); + debug_println("Error linking shaders: %s", log); + glDeleteProgram(program); + return 0; + } + } + return program; +} + +static GLuint gl_compile_and_link_shaders(char const *vshader_code, char const *fshader_code) { + GLuint shaders[2]; + shaders[0] = gl_compile_shader(vshader_code, GL_VERTEX_SHADER); + shaders[1] = gl_compile_shader(fshader_code, GL_FRAGMENT_SHADER); + GLuint program = gl_link_program(shaders, 2); + if (shaders[0]) glDeleteShader(shaders[0]); + if (shaders[1]) glDeleteShader(shaders[1]); + if (program) { + debug_print("Successfully linked program %u.\n", program); + } + return program; +} + +static GLuint gl_create_program_from_files(char const *vshader_file, char const *fshader_file) { + char *vcode = read_file_contents(vshader_file); + char *fcode = read_file_contents(fshader_file); + GLuint program = 0; + if (vcode && fcode) { + program = gl_compile_and_link_shaders(vcode, fcode); + } else { + debug_print("WARNING: Couldn't read file: %s.\n", vcode ? fshader_file : vshader_file); + } + free(vcode); free(fcode); + return program; +} + +static GLuint gl_attrib_loc(GLuint program, char const *attrib) { + GLint loc = glGetAttribLocation(program, attrib); + if (loc == -1) { + debug_print("Couldn't find vertex attribute %s.\n", attrib); + return 0; + } + return (GLuint)loc; +} + +static GLint gl_uniform_loc(GLuint program, char const *uniform) { + GLint loc = glGetUniformLocation(program, uniform); + if (loc == -1) { + debug_print("Couldn't find uniform: %s.\n", uniform); + return -1; + } + return loc; +} diff --git a/lib/glcorearb.h b/lib/glcorearb.h new file mode 100644 index 0000000..872d5a6 --- /dev/null +++ b/lib/glcorearb.h @@ -0,0 +1,5950 @@ +#ifndef __gl_glcorearb_h_ +#define __gl_glcorearb_h_ 1 + +#ifdef __cplusplus +extern "C" { +#endif + +/* +** Copyright (c) 2013-2018 The Khronos Group Inc. +** +** Permission is hereby granted, free of charge, to any person obtaining a +** copy of this software and/or associated documentation files (the +** "Materials"), to deal in the Materials without restriction, including +** without limitation the rights to use, copy, modify, merge, publish, +** distribute, sublicense, and/or sell copies of the Materials, and to +** permit persons to whom the Materials are furnished to do so, subject to +** the following conditions: +** +** The above copyright notice and this permission notice shall be included +** in all copies or substantial portions of the Materials. +** +** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. +*/ +/* +** This header is generated from the Khronos OpenGL / OpenGL ES XML +** API Registry. The current version of the Registry, generator scripts +** used to make the header, and the header can be found at +** https://github.com/KhronosGroup/OpenGL-Registry +*/ + +#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__) +#ifndef WIN32_LEAN_AND_MEAN +#define WIN32_LEAN_AND_MEAN 1 +#endif +#include <windows.h> +#endif + +#ifndef APIENTRY +#define APIENTRY +#endif +#ifndef APIENTRYP +#define APIENTRYP APIENTRY * +#endif +#ifndef GLAPI +#define GLAPI extern +#endif + +/* glcorearb.h is for use with OpenGL core profile implementations. +** It should should be placed in the same directory as gl.h and +** included as <GL/glcorearb.h>. +** +** glcorearb.h includes only APIs in the latest OpenGL core profile +** implementation together with APIs in newer ARB extensions which +** can be supported by the core profile. It does not, and never will +** include functionality removed from the core profile, such as +** fixed-function vertex and fragment processing. +** +** Do not #include both <GL/glcorearb.h> and either of <GL/gl.h> or +** <GL/glext.h> in the same source file. +*/ + +/* Generated C header for: + * API: gl + * Profile: core + * Versions considered: .* + * Versions emitted: .* + * Default extensions included: glcore + * Additional extensions included: _nomatch_^ + * Extensions removed: _nomatch_^ + */ + +#ifndef GL_VERSION_1_0 +#define GL_VERSION_1_0 1 +typedef void GLvoid; +typedef unsigned int GLenum; +#include "khrplatform.h" +typedef khronos_float_t GLfloat; +typedef int GLint; +typedef int GLsizei; +typedef unsigned int GLbitfield; +typedef double GLdouble; +typedef unsigned int GLuint; +typedef unsigned char GLboolean; +typedef khronos_uint8_t GLubyte; +#define GL_DEPTH_BUFFER_BIT 0x00000100 +#define GL_STENCIL_BUFFER_BIT 0x00000400 +#define GL_COLOR_BUFFER_BIT 0x00004000 +#define GL_FALSE 0 +#define GL_TRUE 1 +#define GL_POINTS 0x0000 +#define GL_LINES 0x0001 +#define GL_LINE_LOOP 0x0002 +#define GL_LINE_STRIP 0x0003 +#define GL_TRIANGLES 0x0004 +#define GL_TRIANGLE_STRIP 0x0005 +#define GL_TRIANGLE_FAN 0x0006 +#define GL_QUADS 0x0007 +#define GL_NEVER 0x0200 +#define GL_LESS 0x0201 +#define GL_EQUAL 0x0202 +#define GL_LEQUAL 0x0203 +#define GL_GREATER 0x0204 +#define GL_NOTEQUAL 0x0205 +#define GL_GEQUAL 0x0206 +#define GL_ALWAYS 0x0207 +#define GL_ZERO 0 +#define GL_ONE 1 +#define GL_SRC_COLOR 0x0300 +#define GL_ONE_MINUS_SRC_COLOR 0x0301 +#define GL_SRC_ALPHA 0x0302 +#define GL_ONE_MINUS_SRC_ALPHA 0x0303 +#define GL_DST_ALPHA 0x0304 +#define GL_ONE_MINUS_DST_ALPHA 0x0305 +#define GL_DST_COLOR 0x0306 +#define GL_ONE_MINUS_DST_COLOR 0x0307 +#define GL_SRC_ALPHA_SATURATE 0x0308 +#define GL_NONE 0 +#define GL_FRONT_LEFT 0x0400 +#define GL_FRONT_RIGHT 0x0401 +#define GL_BACK_LEFT 0x0402 +#define GL_BACK_RIGHT 0x0403 +#define GL_FRONT 0x0404 +#define GL_BACK 0x0405 +#define GL_LEFT 0x0406 +#define GL_RIGHT 0x0407 +#define GL_FRONT_AND_BACK 0x0408 +#define GL_NO_ERROR 0 +#define GL_INVALID_ENUM 0x0500 +#define GL_INVALID_VALUE 0x0501 +#define GL_INVALID_OPERATION 0x0502 +#define GL_OUT_OF_MEMORY 0x0505 +#define GL_CW 0x0900 +#define GL_CCW 0x0901 +#define GL_POINT_SIZE 0x0B11 +#define GL_POINT_SIZE_RANGE 0x0B12 +#define GL_POINT_SIZE_GRANULARITY 0x0B13 +#define GL_LINE_SMOOTH 0x0B20 +#define GL_LINE_WIDTH 0x0B21 +#define GL_LINE_WIDTH_RANGE 0x0B22 +#define GL_LINE_WIDTH_GRANULARITY 0x0B23 +#define GL_POLYGON_MODE 0x0B40 +#define GL_POLYGON_SMOOTH 0x0B41 +#define GL_CULL_FACE 0x0B44 +#define GL_CULL_FACE_MODE 0x0B45 +#define GL_FRONT_FACE 0x0B46 +#define GL_DEPTH_RANGE 0x0B70 +#define GL_DEPTH_TEST 0x0B71 +#define GL_DEPTH_WRITEMASK 0x0B72 +#define GL_DEPTH_CLEAR_VALUE 0x0B73 +#define GL_DEPTH_FUNC 0x0B74 +#define GL_STENCIL_TEST 0x0B90 +#define GL_STENCIL_CLEAR_VALUE 0x0B91 +#define GL_STENCIL_FUNC 0x0B92 +#define GL_STENCIL_VALUE_MASK 0x0B93 +#define GL_STENCIL_FAIL 0x0B94 +#define GL_STENCIL_PASS_DEPTH_FAIL 0x0B95 +#define GL_STENCIL_PASS_DEPTH_PASS 0x0B96 +#define GL_STENCIL_REF 0x0B97 +#define GL_STENCIL_WRITEMASK 0x0B98 +#define GL_VIEWPORT 0x0BA2 +#define GL_DITHER 0x0BD0 +#define GL_BLEND_DST 0x0BE0 +#define GL_BLEND_SRC 0x0BE1 +#define GL_BLEND 0x0BE2 +#define GL_LOGIC_OP_MODE 0x0BF0 +#define GL_DRAW_BUFFER 0x0C01 +#define GL_READ_BUFFER 0x0C02 +#define GL_SCISSOR_BOX 0x0C10 +#define GL_SCISSOR_TEST 0x0C11 +#define GL_COLOR_CLEAR_VALUE 0x0C22 +#define GL_COLOR_WRITEMASK 0x0C23 +#define GL_DOUBLEBUFFER 0x0C32 +#define GL_STEREO 0x0C33 +#define GL_LINE_SMOOTH_HINT 0x0C52 +#define GL_POLYGON_SMOOTH_HINT 0x0C53 +#define GL_UNPACK_SWAP_BYTES 0x0CF0 +#define GL_UNPACK_LSB_FIRST 0x0CF1 +#define GL_UNPACK_ROW_LENGTH 0x0CF2 +#define GL_UNPACK_SKIP_ROWS 0x0CF3 +#define GL_UNPACK_SKIP_PIXELS 0x0CF4 +#define GL_UNPACK_ALIGNMENT 0x0CF5 +#define GL_PACK_SWAP_BYTES 0x0D00 +#define GL_PACK_LSB_FIRST 0x0D01 +#define GL_PACK_ROW_LENGTH 0x0D02 +#define GL_PACK_SKIP_ROWS 0x0D03 +#define GL_PACK_SKIP_PIXELS 0x0D04 +#define GL_PACK_ALIGNMENT 0x0D05 +#define GL_MAX_TEXTURE_SIZE 0x0D33 +#define GL_MAX_VIEWPORT_DIMS 0x0D3A +#define GL_SUBPIXEL_BITS 0x0D50 +#define GL_TEXTURE_1D 0x0DE0 +#define GL_TEXTURE_2D 0x0DE1 +#define GL_TEXTURE_WIDTH 0x1000 +#define GL_TEXTURE_HEIGHT 0x1001 +#define GL_TEXTURE_BORDER_COLOR 0x1004 +#define GL_DONT_CARE 0x1100 +#define GL_FASTEST 0x1101 +#define GL_NICEST 0x1102 +#define GL_BYTE 0x1400 +#define GL_UNSIGNED_BYTE 0x1401 +#define GL_SHORT 0x1402 +#define GL_UNSIGNED_SHORT 0x1403 +#define GL_INT 0x1404 +#define GL_UNSIGNED_INT 0x1405 +#define GL_FLOAT 0x1406 +#define GL_STACK_OVERFLOW 0x0503 +#define GL_STACK_UNDERFLOW 0x0504 +#define GL_CLEAR 0x1500 +#define GL_AND 0x1501 +#define GL_AND_REVERSE 0x1502 +#define GL_COPY 0x1503 +#define GL_AND_INVERTED 0x1504 +#define GL_NOOP 0x1505 +#define GL_XOR 0x1506 +#define GL_OR 0x1507 +#define GL_NOR 0x1508 +#define GL_EQUIV 0x1509 +#define GL_INVERT 0x150A +#define GL_OR_REVERSE 0x150B +#define GL_COPY_INVERTED 0x150C +#define GL_OR_INVERTED 0x150D +#define GL_NAND 0x150E +#define GL_SET 0x150F +#define GL_TEXTURE 0x1702 +#define GL_COLOR 0x1800 +#define GL_DEPTH 0x1801 +#define GL_STENCIL 0x1802 +#define GL_STENCIL_INDEX 0x1901 +#define GL_DEPTH_COMPONENT 0x1902 +#define GL_RED 0x1903 +#define GL_GREEN 0x1904 +#define GL_BLUE 0x1905 +#define GL_ALPHA 0x1906 +#define GL_RGB 0x1907 +#define GL_RGBA 0x1908 +#define GL_POINT 0x1B00 +#define GL_LINE 0x1B01 +#define GL_FILL 0x1B02 +#define GL_KEEP 0x1E00 +#define GL_REPLACE 0x1E01 +#define GL_INCR 0x1E02 +#define GL_DECR 0x1E03 +#define GL_VENDOR 0x1F00 +#define GL_RENDERER 0x1F01 +#define GL_VERSION 0x1F02 +#define GL_EXTENSIONS 0x1F03 +#define GL_NEAREST 0x2600 +#define GL_LINEAR 0x2601 +#define GL_NEAREST_MIPMAP_NEAREST 0x2700 +#define GL_LINEAR_MIPMAP_NEAREST 0x2701 +#define GL_NEAREST_MIPMAP_LINEAR 0x2702 +#define GL_LINEAR_MIPMAP_LINEAR 0x2703 +#define GL_TEXTURE_MAG_FILTER 0x2800 +#define GL_TEXTURE_MIN_FILTER 0x2801 +#define GL_TEXTURE_WRAP_S 0x2802 +#define GL_TEXTURE_WRAP_T 0x2803 +#define GL_REPEAT 0x2901 +typedef void (APIENTRYP PFNGLCULLFACEPROC) (GLenum mode); +typedef void (APIENTRYP PFNGLFRONTFACEPROC) (GLenum mode); +typedef void (APIENTRYP PFNGLHINTPROC) (GLenum target, GLenum mode); +typedef void (APIENTRYP PFNGLLINEWIDTHPROC) (GLfloat width); +typedef void (APIENTRYP PFNGLPOINTSIZEPROC) (GLfloat size); +typedef void (APIENTRYP PFNGLPOLYGONMODEPROC) (GLenum face, GLenum mode); +typedef void (APIENTRYP PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLTEXPARAMETERFPROC) (GLenum target, GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLTEXPARAMETERFVPROC) (GLenum target, GLenum pname, const GLfloat *params); +typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLTEXPARAMETERIVPROC) (GLenum target, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLTEXIMAGE1DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLDRAWBUFFERPROC) (GLenum buf); +typedef void (APIENTRYP PFNGLCLEARPROC) (GLbitfield mask); +typedef void (APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +typedef void (APIENTRYP PFNGLCLEARSTENCILPROC) (GLint s); +typedef void (APIENTRYP PFNGLCLEARDEPTHPROC) (GLdouble depth); +typedef void (APIENTRYP PFNGLSTENCILMASKPROC) (GLuint mask); +typedef void (APIENTRYP PFNGLCOLORMASKPROC) (GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha); +typedef void (APIENTRYP PFNGLDEPTHMASKPROC) (GLboolean flag); +typedef void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap); +typedef void (APIENTRYP PFNGLENABLEPROC) (GLenum cap); +typedef void (APIENTRYP PFNGLFINISHPROC) (void); +typedef void (APIENTRYP PFNGLFLUSHPROC) (void); +typedef void (APIENTRYP PFNGLBLENDFUNCPROC) (GLenum sfactor, GLenum dfactor); +typedef void (APIENTRYP PFNGLLOGICOPPROC) (GLenum opcode); +typedef void (APIENTRYP PFNGLSTENCILFUNCPROC) (GLenum func, GLint ref, GLuint mask); +typedef void (APIENTRYP PFNGLSTENCILOPPROC) (GLenum fail, GLenum zfail, GLenum zpass); +typedef void (APIENTRYP PFNGLDEPTHFUNCPROC) (GLenum func); +typedef void (APIENTRYP PFNGLPIXELSTOREFPROC) (GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLREADBUFFERPROC) (GLenum src); +typedef void (APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels); +typedef void (APIENTRYP PFNGLGETBOOLEANVPROC) (GLenum pname, GLboolean *data); +typedef void (APIENTRYP PFNGLGETDOUBLEVPROC) (GLenum pname, GLdouble *data); +typedef GLenum (APIENTRYP PFNGLGETERRORPROC) (void); +typedef void (APIENTRYP PFNGLGETFLOATVPROC) (GLenum pname, GLfloat *data); +typedef void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data); +typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGPROC) (GLenum name); +typedef void (APIENTRYP PFNGLGETTEXIMAGEPROC) (GLenum target, GLint level, GLenum format, GLenum type, void *pixels); +typedef void (APIENTRYP PFNGLGETTEXPARAMETERFVPROC) (GLenum target, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETTEXPARAMETERIVPROC) (GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETTEXLEVELPARAMETERFVPROC) (GLenum target, GLint level, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETTEXLEVELPARAMETERIVPROC) (GLenum target, GLint level, GLenum pname, GLint *params); +typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC) (GLenum cap); +typedef void (APIENTRYP PFNGLDEPTHRANGEPROC) (GLdouble n, GLdouble f); +typedef void (APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glCullFace (GLenum mode); +GLAPI void APIENTRY glFrontFace (GLenum mode); +GLAPI void APIENTRY glHint (GLenum target, GLenum mode); +GLAPI void APIENTRY glLineWidth (GLfloat width); +GLAPI void APIENTRY glPointSize (GLfloat size); +GLAPI void APIENTRY glPolygonMode (GLenum face, GLenum mode); +GLAPI void APIENTRY glScissor (GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glTexParameterf (GLenum target, GLenum pname, GLfloat param); +GLAPI void APIENTRY glTexParameterfv (GLenum target, GLenum pname, const GLfloat *params); +GLAPI void APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param); +GLAPI void APIENTRY glTexParameteriv (GLenum target, GLenum pname, const GLint *params); +GLAPI void APIENTRY glTexImage1D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTexImage2D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glDrawBuffer (GLenum buf); +GLAPI void APIENTRY glClear (GLbitfield mask); +GLAPI void APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +GLAPI void APIENTRY glClearStencil (GLint s); +GLAPI void APIENTRY glClearDepth (GLdouble depth); +GLAPI void APIENTRY glStencilMask (GLuint mask); +GLAPI void APIENTRY glColorMask (GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha); +GLAPI void APIENTRY glDepthMask (GLboolean flag); +GLAPI void APIENTRY glDisable (GLenum cap); +GLAPI void APIENTRY glEnable (GLenum cap); +GLAPI void APIENTRY glFinish (void); +GLAPI void APIENTRY glFlush (void); +GLAPI void APIENTRY glBlendFunc (GLenum sfactor, GLenum dfactor); +GLAPI void APIENTRY glLogicOp (GLenum opcode); +GLAPI void APIENTRY glStencilFunc (GLenum func, GLint ref, GLuint mask); +GLAPI void APIENTRY glStencilOp (GLenum fail, GLenum zfail, GLenum zpass); +GLAPI void APIENTRY glDepthFunc (GLenum func); +GLAPI void APIENTRY glPixelStoref (GLenum pname, GLfloat param); +GLAPI void APIENTRY glPixelStorei (GLenum pname, GLint param); +GLAPI void APIENTRY glReadBuffer (GLenum src); +GLAPI void APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels); +GLAPI void APIENTRY glGetBooleanv (GLenum pname, GLboolean *data); +GLAPI void APIENTRY glGetDoublev (GLenum pname, GLdouble *data); +GLAPI GLenum APIENTRY glGetError (void); +GLAPI void APIENTRY glGetFloatv (GLenum pname, GLfloat *data); +GLAPI void APIENTRY glGetIntegerv (GLenum pname, GLint *data); +GLAPI const GLubyte *APIENTRY glGetString (GLenum name); +GLAPI void APIENTRY glGetTexImage (GLenum target, GLint level, GLenum format, GLenum type, void *pixels); +GLAPI void APIENTRY glGetTexParameterfv (GLenum target, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetTexParameteriv (GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetTexLevelParameterfv (GLenum target, GLint level, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetTexLevelParameteriv (GLenum target, GLint level, GLenum pname, GLint *params); +GLAPI GLboolean APIENTRY glIsEnabled (GLenum cap); +GLAPI void APIENTRY glDepthRange (GLdouble n, GLdouble f); +GLAPI void APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei height); +#endif +#endif /* GL_VERSION_1_0 */ + +#ifndef GL_VERSION_1_1 +#define GL_VERSION_1_1 1 +typedef khronos_float_t GLclampf; +typedef double GLclampd; +#define GL_COLOR_LOGIC_OP 0x0BF2 +#define GL_POLYGON_OFFSET_UNITS 0x2A00 +#define GL_POLYGON_OFFSET_POINT 0x2A01 +#define GL_POLYGON_OFFSET_LINE 0x2A02 +#define GL_POLYGON_OFFSET_FILL 0x8037 +#define GL_POLYGON_OFFSET_FACTOR 0x8038 +#define GL_TEXTURE_BINDING_1D 0x8068 +#define GL_TEXTURE_BINDING_2D 0x8069 +#define GL_TEXTURE_INTERNAL_FORMAT 0x1003 +#define GL_TEXTURE_RED_SIZE 0x805C +#define GL_TEXTURE_GREEN_SIZE 0x805D +#define GL_TEXTURE_BLUE_SIZE 0x805E +#define GL_TEXTURE_ALPHA_SIZE 0x805F +#define GL_DOUBLE 0x140A +#define GL_PROXY_TEXTURE_1D 0x8063 +#define GL_PROXY_TEXTURE_2D 0x8064 +#define GL_R3_G3_B2 0x2A10 +#define GL_RGB4 0x804F +#define GL_RGB5 0x8050 +#define GL_RGB8 0x8051 +#define GL_RGB10 0x8052 +#define GL_RGB12 0x8053 +#define GL_RGB16 0x8054 +#define GL_RGBA2 0x8055 +#define GL_RGBA4 0x8056 +#define GL_RGB5_A1 0x8057 +#define GL_RGBA8 0x8058 +#define GL_RGB10_A2 0x8059 +#define GL_RGBA12 0x805A +#define GL_RGBA16 0x805B +#define GL_VERTEX_ARRAY 0x8074 +typedef void (APIENTRYP PFNGLDRAWARRAYSPROC) (GLenum mode, GLint first, GLsizei count); +typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices); +typedef void (APIENTRYP PFNGLGETPOINTERVPROC) (GLenum pname, void **params); +typedef void (APIENTRYP PFNGLPOLYGONOFFSETPROC) (GLfloat factor, GLfloat units); +typedef void (APIENTRYP PFNGLCOPYTEXIMAGE1DPROC) (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border); +typedef void (APIENTRYP PFNGLCOPYTEXIMAGE2DPROC) (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); +typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE1DPROC) (GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLTEXSUBIMAGE1DPROC) (GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture); +typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures); +typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures); +typedef GLboolean (APIENTRYP PFNGLISTEXTUREPROC) (GLuint texture); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawArrays (GLenum mode, GLint first, GLsizei count); +GLAPI void APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices); +GLAPI void APIENTRY glGetPointerv (GLenum pname, void **params); +GLAPI void APIENTRY glPolygonOffset (GLfloat factor, GLfloat units); +GLAPI void APIENTRY glCopyTexImage1D (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border); +GLAPI void APIENTRY glCopyTexImage2D (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); +GLAPI void APIENTRY glCopyTexSubImage1D (GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +GLAPI void APIENTRY glCopyTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glTexSubImage1D (GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glBindTexture (GLenum target, GLuint texture); +GLAPI void APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures); +GLAPI void APIENTRY glGenTextures (GLsizei n, GLuint *textures); +GLAPI GLboolean APIENTRY glIsTexture (GLuint texture); +#endif +#endif /* GL_VERSION_1_1 */ + +#ifndef GL_VERSION_1_2 +#define GL_VERSION_1_2 1 +#define GL_UNSIGNED_BYTE_3_3_2 0x8032 +#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033 +#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034 +#define GL_UNSIGNED_INT_8_8_8_8 0x8035 +#define GL_UNSIGNED_INT_10_10_10_2 0x8036 +#define GL_TEXTURE_BINDING_3D 0x806A +#define GL_PACK_SKIP_IMAGES 0x806B +#define GL_PACK_IMAGE_HEIGHT 0x806C +#define GL_UNPACK_SKIP_IMAGES 0x806D +#define GL_UNPACK_IMAGE_HEIGHT 0x806E +#define GL_TEXTURE_3D 0x806F +#define GL_PROXY_TEXTURE_3D 0x8070 +#define GL_TEXTURE_DEPTH 0x8071 +#define GL_TEXTURE_WRAP_R 0x8072 +#define GL_MAX_3D_TEXTURE_SIZE 0x8073 +#define GL_UNSIGNED_BYTE_2_3_3_REV 0x8362 +#define GL_UNSIGNED_SHORT_5_6_5 0x8363 +#define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364 +#define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365 +#define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366 +#define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367 +#define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368 +#define GL_BGR 0x80E0 +#define GL_BGRA 0x80E1 +#define GL_MAX_ELEMENTS_VERTICES 0x80E8 +#define GL_MAX_ELEMENTS_INDICES 0x80E9 +#define GL_CLAMP_TO_EDGE 0x812F +#define GL_TEXTURE_MIN_LOD 0x813A +#define GL_TEXTURE_MAX_LOD 0x813B +#define GL_TEXTURE_BASE_LEVEL 0x813C +#define GL_TEXTURE_MAX_LEVEL 0x813D +#define GL_SMOOTH_POINT_SIZE_RANGE 0x0B12 +#define GL_SMOOTH_POINT_SIZE_GRANULARITY 0x0B13 +#define GL_SMOOTH_LINE_WIDTH_RANGE 0x0B22 +#define GL_SMOOTH_LINE_WIDTH_GRANULARITY 0x0B23 +#define GL_ALIASED_LINE_WIDTH_RANGE 0x846E +typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSPROC) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices); +typedef void (APIENTRYP PFNGLTEXIMAGE3DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXSUBIMAGE3DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE3DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawRangeElements (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices); +GLAPI void APIENTRY glTexImage3D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTexSubImage3D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glCopyTexSubImage3D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +#endif +#endif /* GL_VERSION_1_2 */ + +#ifndef GL_VERSION_1_3 +#define GL_VERSION_1_3 1 +#define GL_TEXTURE0 0x84C0 +#define GL_TEXTURE1 0x84C1 +#define GL_TEXTURE2 0x84C2 +#define GL_TEXTURE3 0x84C3 +#define GL_TEXTURE4 0x84C4 +#define GL_TEXTURE5 0x84C5 +#define GL_TEXTURE6 0x84C6 +#define GL_TEXTURE7 0x84C7 +#define GL_TEXTURE8 0x84C8 +#define GL_TEXTURE9 0x84C9 +#define GL_TEXTURE10 0x84CA +#define GL_TEXTURE11 0x84CB +#define GL_TEXTURE12 0x84CC +#define GL_TEXTURE13 0x84CD +#define GL_TEXTURE14 0x84CE +#define GL_TEXTURE15 0x84CF +#define GL_TEXTURE16 0x84D0 +#define GL_TEXTURE17 0x84D1 +#define GL_TEXTURE18 0x84D2 +#define GL_TEXTURE19 0x84D3 +#define GL_TEXTURE20 0x84D4 +#define GL_TEXTURE21 0x84D5 +#define GL_TEXTURE22 0x84D6 +#define GL_TEXTURE23 0x84D7 +#define GL_TEXTURE24 0x84D8 +#define GL_TEXTURE25 0x84D9 +#define GL_TEXTURE26 0x84DA +#define GL_TEXTURE27 0x84DB +#define GL_TEXTURE28 0x84DC +#define GL_TEXTURE29 0x84DD +#define GL_TEXTURE30 0x84DE +#define GL_TEXTURE31 0x84DF +#define GL_ACTIVE_TEXTURE 0x84E0 +#define GL_MULTISAMPLE 0x809D +#define GL_SAMPLE_ALPHA_TO_COVERAGE 0x809E +#define GL_SAMPLE_ALPHA_TO_ONE 0x809F +#define GL_SAMPLE_COVERAGE 0x80A0 +#define GL_SAMPLE_BUFFERS 0x80A8 +#define GL_SAMPLES 0x80A9 +#define GL_SAMPLE_COVERAGE_VALUE 0x80AA +#define GL_SAMPLE_COVERAGE_INVERT 0x80AB +#define GL_TEXTURE_CUBE_MAP 0x8513 +#define GL_TEXTURE_BINDING_CUBE_MAP 0x8514 +#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516 +#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518 +#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A +#define GL_PROXY_TEXTURE_CUBE_MAP 0x851B +#define GL_MAX_CUBE_MAP_TEXTURE_SIZE 0x851C +#define GL_COMPRESSED_RGB 0x84ED +#define GL_COMPRESSED_RGBA 0x84EE +#define GL_TEXTURE_COMPRESSION_HINT 0x84EF +#define GL_TEXTURE_COMPRESSED_IMAGE_SIZE 0x86A0 +#define GL_TEXTURE_COMPRESSED 0x86A1 +#define GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2 +#define GL_COMPRESSED_TEXTURE_FORMATS 0x86A3 +#define GL_CLAMP_TO_BORDER 0x812D +typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC) (GLenum texture); +typedef void (APIENTRYP PFNGLSAMPLECOVERAGEPROC) (GLfloat value, GLboolean invert); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE3DPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE2DPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE1DPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC) (GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXIMAGEPROC) (GLenum target, GLint level, void *img); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glActiveTexture (GLenum texture); +GLAPI void APIENTRY glSampleCoverage (GLfloat value, GLboolean invert); +GLAPI void APIENTRY glCompressedTexImage3D (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glCompressedTexImage2D (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glCompressedTexImage1D (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glCompressedTexSubImage3D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glCompressedTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glCompressedTexSubImage1D (GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glGetCompressedTexImage (GLenum target, GLint level, void *img); +#endif +#endif /* GL_VERSION_1_3 */ + +#ifndef GL_VERSION_1_4 +#define GL_VERSION_1_4 1 +#define GL_BLEND_DST_RGB 0x80C8 +#define GL_BLEND_SRC_RGB 0x80C9 +#define GL_BLEND_DST_ALPHA 0x80CA +#define GL_BLEND_SRC_ALPHA 0x80CB +#define GL_POINT_FADE_THRESHOLD_SIZE 0x8128 +#define GL_DEPTH_COMPONENT16 0x81A5 +#define GL_DEPTH_COMPONENT24 0x81A6 +#define GL_DEPTH_COMPONENT32 0x81A7 +#define GL_MIRRORED_REPEAT 0x8370 +#define GL_MAX_TEXTURE_LOD_BIAS 0x84FD +#define GL_TEXTURE_LOD_BIAS 0x8501 +#define GL_INCR_WRAP 0x8507 +#define GL_DECR_WRAP 0x8508 +#define GL_TEXTURE_DEPTH_SIZE 0x884A +#define GL_TEXTURE_COMPARE_MODE 0x884C +#define GL_TEXTURE_COMPARE_FUNC 0x884D +#define GL_BLEND_COLOR 0x8005 +#define GL_BLEND_EQUATION 0x8009 +#define GL_CONSTANT_COLOR 0x8001 +#define GL_ONE_MINUS_CONSTANT_COLOR 0x8002 +#define GL_CONSTANT_ALPHA 0x8003 +#define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004 +#define GL_FUNC_ADD 0x8006 +#define GL_FUNC_REVERSE_SUBTRACT 0x800B +#define GL_FUNC_SUBTRACT 0x800A +#define GL_MIN 0x8007 +#define GL_MAX 0x8008 +typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); +typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSPROC) (GLenum mode, const GLint *first, const GLsizei *count, GLsizei drawcount); +typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount); +typedef void (APIENTRYP PFNGLPOINTPARAMETERFPROC) (GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLPOINTPARAMETERFVPROC) (GLenum pname, const GLfloat *params); +typedef void (APIENTRYP PFNGLPOINTPARAMETERIPROC) (GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLPOINTPARAMETERIVPROC) (GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLBLENDCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBlendFuncSeparate (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); +GLAPI void APIENTRY glMultiDrawArrays (GLenum mode, const GLint *first, const GLsizei *count, GLsizei drawcount); +GLAPI void APIENTRY glMultiDrawElements (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount); +GLAPI void APIENTRY glPointParameterf (GLenum pname, GLfloat param); +GLAPI void APIENTRY glPointParameterfv (GLenum pname, const GLfloat *params); +GLAPI void APIENTRY glPointParameteri (GLenum pname, GLint param); +GLAPI void APIENTRY glPointParameteriv (GLenum pname, const GLint *params); +GLAPI void APIENTRY glBlendColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +GLAPI void APIENTRY glBlendEquation (GLenum mode); +#endif +#endif /* GL_VERSION_1_4 */ + +#ifndef GL_VERSION_1_5 +#define GL_VERSION_1_5 1 +typedef khronos_ssize_t GLsizeiptr; +typedef khronos_intptr_t GLintptr; +#define GL_BUFFER_SIZE 0x8764 +#define GL_BUFFER_USAGE 0x8765 +#define GL_QUERY_COUNTER_BITS 0x8864 +#define GL_CURRENT_QUERY 0x8865 +#define GL_QUERY_RESULT 0x8866 +#define GL_QUERY_RESULT_AVAILABLE 0x8867 +#define GL_ARRAY_BUFFER 0x8892 +#define GL_ELEMENT_ARRAY_BUFFER 0x8893 +#define GL_ARRAY_BUFFER_BINDING 0x8894 +#define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895 +#define GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F +#define GL_READ_ONLY 0x88B8 +#define GL_WRITE_ONLY 0x88B9 +#define GL_READ_WRITE 0x88BA +#define GL_BUFFER_ACCESS 0x88BB +#define GL_BUFFER_MAPPED 0x88BC +#define GL_BUFFER_MAP_POINTER 0x88BD +#define GL_STREAM_DRAW 0x88E0 +#define GL_STREAM_READ 0x88E1 +#define GL_STREAM_COPY 0x88E2 +#define GL_STATIC_DRAW 0x88E4 +#define GL_STATIC_READ 0x88E5 +#define GL_STATIC_COPY 0x88E6 +#define GL_DYNAMIC_DRAW 0x88E8 +#define GL_DYNAMIC_READ 0x88E9 +#define GL_DYNAMIC_COPY 0x88EA +#define GL_SAMPLES_PASSED 0x8914 +#define GL_SRC1_ALPHA 0x8589 +typedef void (APIENTRYP PFNGLGENQUERIESPROC) (GLsizei n, GLuint *ids); +typedef void (APIENTRYP PFNGLDELETEQUERIESPROC) (GLsizei n, const GLuint *ids); +typedef GLboolean (APIENTRYP PFNGLISQUERYPROC) (GLuint id); +typedef void (APIENTRYP PFNGLBEGINQUERYPROC) (GLenum target, GLuint id); +typedef void (APIENTRYP PFNGLENDQUERYPROC) (GLenum target); +typedef void (APIENTRYP PFNGLGETQUERYIVPROC) (GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETQUERYOBJECTIVPROC) (GLuint id, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETQUERYOBJECTUIVPROC) (GLuint id, GLenum pname, GLuint *params); +typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer); +typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers); +typedef void (APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers); +typedef GLboolean (APIENTRYP PFNGLISBUFFERPROC) (GLuint buffer); +typedef void (APIENTRYP PFNGLBUFFERDATAPROC) (GLenum target, GLsizeiptr size, const void *data, GLenum usage); +typedef void (APIENTRYP PFNGLBUFFERSUBDATAPROC) (GLenum target, GLintptr offset, GLsizeiptr size, const void *data); +typedef void (APIENTRYP PFNGLGETBUFFERSUBDATAPROC) (GLenum target, GLintptr offset, GLsizeiptr size, void *data); +typedef void *(APIENTRYP PFNGLMAPBUFFERPROC) (GLenum target, GLenum access); +typedef GLboolean (APIENTRYP PFNGLUNMAPBUFFERPROC) (GLenum target); +typedef void (APIENTRYP PFNGLGETBUFFERPARAMETERIVPROC) (GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETBUFFERPOINTERVPROC) (GLenum target, GLenum pname, void **params); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glGenQueries (GLsizei n, GLuint *ids); +GLAPI void APIENTRY glDeleteQueries (GLsizei n, const GLuint *ids); +GLAPI GLboolean APIENTRY glIsQuery (GLuint id); +GLAPI void APIENTRY glBeginQuery (GLenum target, GLuint id); +GLAPI void APIENTRY glEndQuery (GLenum target); +GLAPI void APIENTRY glGetQueryiv (GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetQueryObjectiv (GLuint id, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetQueryObjectuiv (GLuint id, GLenum pname, GLuint *params); +GLAPI void APIENTRY glBindBuffer (GLenum target, GLuint buffer); +GLAPI void APIENTRY glDeleteBuffers (GLsizei n, const GLuint *buffers); +GLAPI void APIENTRY glGenBuffers (GLsizei n, GLuint *buffers); +GLAPI GLboolean APIENTRY glIsBuffer (GLuint buffer); +GLAPI void APIENTRY glBufferData (GLenum target, GLsizeiptr size, const void *data, GLenum usage); +GLAPI void APIENTRY glBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, const void *data); +GLAPI void APIENTRY glGetBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, void *data); +GLAPI void *APIENTRY glMapBuffer (GLenum target, GLenum access); +GLAPI GLboolean APIENTRY glUnmapBuffer (GLenum target); +GLAPI void APIENTRY glGetBufferParameteriv (GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetBufferPointerv (GLenum target, GLenum pname, void **params); +#endif +#endif /* GL_VERSION_1_5 */ + +#ifndef GL_VERSION_2_0 +#define GL_VERSION_2_0 1 +typedef char GLchar; +typedef khronos_int16_t GLshort; +typedef khronos_int8_t GLbyte; +typedef khronos_uint16_t GLushort; +#define GL_BLEND_EQUATION_RGB 0x8009 +#define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622 +#define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623 +#define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624 +#define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625 +#define GL_CURRENT_VERTEX_ATTRIB 0x8626 +#define GL_VERTEX_PROGRAM_POINT_SIZE 0x8642 +#define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645 +#define GL_STENCIL_BACK_FUNC 0x8800 +#define GL_STENCIL_BACK_FAIL 0x8801 +#define GL_STENCIL_BACK_PASS_DEPTH_FAIL 0x8802 +#define GL_STENCIL_BACK_PASS_DEPTH_PASS 0x8803 +#define GL_MAX_DRAW_BUFFERS 0x8824 +#define GL_DRAW_BUFFER0 0x8825 +#define GL_DRAW_BUFFER1 0x8826 +#define GL_DRAW_BUFFER2 0x8827 +#define GL_DRAW_BUFFER3 0x8828 +#define GL_DRAW_BUFFER4 0x8829 +#define GL_DRAW_BUFFER5 0x882A +#define GL_DRAW_BUFFER6 0x882B +#define GL_DRAW_BUFFER7 0x882C +#define GL_DRAW_BUFFER8 0x882D +#define GL_DRAW_BUFFER9 0x882E +#define GL_DRAW_BUFFER10 0x882F +#define GL_DRAW_BUFFER11 0x8830 +#define GL_DRAW_BUFFER12 0x8831 +#define GL_DRAW_BUFFER13 0x8832 +#define GL_DRAW_BUFFER14 0x8833 +#define GL_DRAW_BUFFER15 0x8834 +#define GL_BLEND_EQUATION_ALPHA 0x883D +#define GL_MAX_VERTEX_ATTRIBS 0x8869 +#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A +#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872 +#define GL_FRAGMENT_SHADER 0x8B30 +#define GL_VERTEX_SHADER 0x8B31 +#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS 0x8B49 +#define GL_MAX_VERTEX_UNIFORM_COMPONENTS 0x8B4A +#define GL_MAX_VARYING_FLOATS 0x8B4B +#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0x8B4C +#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D +#define GL_SHADER_TYPE 0x8B4F +#define GL_FLOAT_VEC2 0x8B50 +#define GL_FLOAT_VEC3 0x8B51 +#define GL_FLOAT_VEC4 0x8B52 +#define GL_INT_VEC2 0x8B53 +#define GL_INT_VEC3 0x8B54 +#define GL_INT_VEC4 0x8B55 +#define GL_BOOL 0x8B56 +#define GL_BOOL_VEC2 0x8B57 +#define GL_BOOL_VEC3 0x8B58 +#define GL_BOOL_VEC4 0x8B59 +#define GL_FLOAT_MAT2 0x8B5A +#define GL_FLOAT_MAT3 0x8B5B +#define GL_FLOAT_MAT4 0x8B5C +#define GL_SAMPLER_1D 0x8B5D +#define GL_SAMPLER_2D 0x8B5E +#define GL_SAMPLER_3D 0x8B5F +#define GL_SAMPLER_CUBE 0x8B60 +#define GL_SAMPLER_1D_SHADOW 0x8B61 +#define GL_SAMPLER_2D_SHADOW 0x8B62 +#define GL_DELETE_STATUS 0x8B80 +#define GL_COMPILE_STATUS 0x8B81 +#define GL_LINK_STATUS 0x8B82 +#define GL_VALIDATE_STATUS 0x8B83 +#define GL_INFO_LOG_LENGTH 0x8B84 +#define GL_ATTACHED_SHADERS 0x8B85 +#define GL_ACTIVE_UNIFORMS 0x8B86 +#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87 +#define GL_SHADER_SOURCE_LENGTH 0x8B88 +#define GL_ACTIVE_ATTRIBUTES 0x8B89 +#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A +#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT 0x8B8B +#define GL_SHADING_LANGUAGE_VERSION 0x8B8C +#define GL_CURRENT_PROGRAM 0x8B8D +#define GL_POINT_SPRITE_COORD_ORIGIN 0x8CA0 +#define GL_LOWER_LEFT 0x8CA1 +#define GL_UPPER_LEFT 0x8CA2 +#define GL_STENCIL_BACK_REF 0x8CA3 +#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4 +#define GL_STENCIL_BACK_WRITEMASK 0x8CA5 +typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC) (GLenum modeRGB, GLenum modeAlpha); +typedef void (APIENTRYP PFNGLDRAWBUFFERSPROC) (GLsizei n, const GLenum *bufs); +typedef void (APIENTRYP PFNGLSTENCILOPSEPARATEPROC) (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass); +typedef void (APIENTRYP PFNGLSTENCILFUNCSEPARATEPROC) (GLenum face, GLenum func, GLint ref, GLuint mask); +typedef void (APIENTRYP PFNGLSTENCILMASKSEPARATEPROC) (GLenum face, GLuint mask); +typedef void (APIENTRYP PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader); +typedef void (APIENTRYP PFNGLBINDATTRIBLOCATIONPROC) (GLuint program, GLuint index, const GLchar *name); +typedef void (APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader); +typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC) (void); +typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC) (GLenum type); +typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program); +typedef void (APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader); +typedef void (APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader); +typedef void (APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint index); +typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index); +typedef void (APIENTRYP PFNGLGETACTIVEATTRIBPROC) (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name); +typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMPROC) (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name); +typedef void (APIENTRYP PFNGLGETATTACHEDSHADERSPROC) (GLuint program, GLsizei maxCount, GLsizei *count, GLuint *shaders); +typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const GLchar *name); +typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog); +typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog); +typedef void (APIENTRYP PFNGLGETSHADERSOURCEPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *source); +typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name); +typedef void (APIENTRYP PFNGLGETUNIFORMFVPROC) (GLuint program, GLint location, GLfloat *params); +typedef void (APIENTRYP PFNGLGETUNIFORMIVPROC) (GLuint program, GLint location, GLint *params); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBDVPROC) (GLuint index, GLenum pname, GLdouble *params); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBFVPROC) (GLuint index, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVPROC) (GLuint index, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC) (GLuint index, GLenum pname, void **pointer); +typedef GLboolean (APIENTRYP PFNGLISPROGRAMPROC) (GLuint program); +typedef GLboolean (APIENTRYP PFNGLISSHADERPROC) (GLuint shader); +typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program); +typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length); +typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program); +typedef void (APIENTRYP PFNGLUNIFORM1FPROC) (GLint location, GLfloat v0); +typedef void (APIENTRYP PFNGLUNIFORM2FPROC) (GLint location, GLfloat v0, GLfloat v1); +typedef void (APIENTRYP PFNGLUNIFORM3FPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2); +typedef void (APIENTRYP PFNGLUNIFORM4FPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); +typedef void (APIENTRYP PFNGLUNIFORM1IPROC) (GLint location, GLint v0); +typedef void (APIENTRYP PFNGLUNIFORM2IPROC) (GLint location, GLint v0, GLint v1); +typedef void (APIENTRYP PFNGLUNIFORM3IPROC) (GLint location, GLint v0, GLint v1, GLint v2); +typedef void (APIENTRYP PFNGLUNIFORM4IPROC) (GLint location, GLint v0, GLint v1, GLint v2, GLint v3); +typedef void (APIENTRYP PFNGLUNIFORM1FVPROC) (GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORM2FVPROC) (GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORM3FVPROC) (GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORM4FVPROC) (GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORM1IVPROC) (GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLUNIFORM2IVPROC) (GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLUNIFORM3IVPROC) (GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLUNIFORM4IVPROC) (GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX2FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX3FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLVALIDATEPROGRAMPROC) (GLuint program); +typedef void (APIENTRYP PFNGLVERTEXATTRIB1DPROC) (GLuint index, GLdouble x); +typedef void (APIENTRYP PFNGLVERTEXATTRIB1DVPROC) (GLuint index, const GLdouble *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB1FPROC) (GLuint index, GLfloat x); +typedef void (APIENTRYP PFNGLVERTEXATTRIB1FVPROC) (GLuint index, const GLfloat *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB1SPROC) (GLuint index, GLshort x); +typedef void (APIENTRYP PFNGLVERTEXATTRIB1SVPROC) (GLuint index, const GLshort *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB2DPROC) (GLuint index, GLdouble x, GLdouble y); +typedef void (APIENTRYP PFNGLVERTEXATTRIB2DVPROC) (GLuint index, const GLdouble *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB2FPROC) (GLuint index, GLfloat x, GLfloat y); +typedef void (APIENTRYP PFNGLVERTEXATTRIB2FVPROC) (GLuint index, const GLfloat *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB2SPROC) (GLuint index, GLshort x, GLshort y); +typedef void (APIENTRYP PFNGLVERTEXATTRIB2SVPROC) (GLuint index, const GLshort *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB3DPROC) (GLuint index, GLdouble x, GLdouble y, GLdouble z); +typedef void (APIENTRYP PFNGLVERTEXATTRIB3DVPROC) (GLuint index, const GLdouble *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB3FPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat z); +typedef void (APIENTRYP PFNGLVERTEXATTRIB3FVPROC) (GLuint index, const GLfloat *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB3SPROC) (GLuint index, GLshort x, GLshort y, GLshort z); +typedef void (APIENTRYP PFNGLVERTEXATTRIB3SVPROC) (GLuint index, const GLshort *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4NBVPROC) (GLuint index, const GLbyte *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4NIVPROC) (GLuint index, const GLint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4NSVPROC) (GLuint index, const GLshort *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUBPROC) (GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUBVPROC) (GLuint index, const GLubyte *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUIVPROC) (GLuint index, const GLuint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUSVPROC) (GLuint index, const GLushort *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4BVPROC) (GLuint index, const GLbyte *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4DPROC) (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4DVPROC) (GLuint index, const GLdouble *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4FPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4FVPROC) (GLuint index, const GLfloat *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4IVPROC) (GLuint index, const GLint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4SPROC) (GLuint index, GLshort x, GLshort y, GLshort z, GLshort w); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4SVPROC) (GLuint index, const GLshort *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4UBVPROC) (GLuint index, const GLubyte *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4UIVPROC) (GLuint index, const GLuint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIB4USVPROC) (GLuint index, const GLushort *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBlendEquationSeparate (GLenum modeRGB, GLenum modeAlpha); +GLAPI void APIENTRY glDrawBuffers (GLsizei n, const GLenum *bufs); +GLAPI void APIENTRY glStencilOpSeparate (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass); +GLAPI void APIENTRY glStencilFuncSeparate (GLenum face, GLenum func, GLint ref, GLuint mask); +GLAPI void APIENTRY glStencilMaskSeparate (GLenum face, GLuint mask); +GLAPI void APIENTRY glAttachShader (GLuint program, GLuint shader); +GLAPI void APIENTRY glBindAttribLocation (GLuint program, GLuint index, const GLchar *name); +GLAPI void APIENTRY glCompileShader (GLuint shader); +GLAPI GLuint APIENTRY glCreateProgram (void); +GLAPI GLuint APIENTRY glCreateShader (GLenum type); +GLAPI void APIENTRY glDeleteProgram (GLuint program); +GLAPI void APIENTRY glDeleteShader (GLuint shader); +GLAPI void APIENTRY glDetachShader (GLuint program, GLuint shader); +GLAPI void APIENTRY glDisableVertexAttribArray (GLuint index); +GLAPI void APIENTRY glEnableVertexAttribArray (GLuint index); +GLAPI void APIENTRY glGetActiveAttrib (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name); +GLAPI void APIENTRY glGetActiveUniform (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name); +GLAPI void APIENTRY glGetAttachedShaders (GLuint program, GLsizei maxCount, GLsizei *count, GLuint *shaders); +GLAPI GLint APIENTRY glGetAttribLocation (GLuint program, const GLchar *name); +GLAPI void APIENTRY glGetProgramiv (GLuint program, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetProgramInfoLog (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog); +GLAPI void APIENTRY glGetShaderiv (GLuint shader, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog); +GLAPI void APIENTRY glGetShaderSource (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *source); +GLAPI GLint APIENTRY glGetUniformLocation (GLuint program, const GLchar *name); +GLAPI void APIENTRY glGetUniformfv (GLuint program, GLint location, GLfloat *params); +GLAPI void APIENTRY glGetUniformiv (GLuint program, GLint location, GLint *params); +GLAPI void APIENTRY glGetVertexAttribdv (GLuint index, GLenum pname, GLdouble *params); +GLAPI void APIENTRY glGetVertexAttribfv (GLuint index, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetVertexAttribiv (GLuint index, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetVertexAttribPointerv (GLuint index, GLenum pname, void **pointer); +GLAPI GLboolean APIENTRY glIsProgram (GLuint program); +GLAPI GLboolean APIENTRY glIsShader (GLuint shader); +GLAPI void APIENTRY glLinkProgram (GLuint program); +GLAPI void APIENTRY glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length); +GLAPI void APIENTRY glUseProgram (GLuint program); +GLAPI void APIENTRY glUniform1f (GLint location, GLfloat v0); +GLAPI void APIENTRY glUniform2f (GLint location, GLfloat v0, GLfloat v1); +GLAPI void APIENTRY glUniform3f (GLint location, GLfloat v0, GLfloat v1, GLfloat v2); +GLAPI void APIENTRY glUniform4f (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); +GLAPI void APIENTRY glUniform1i (GLint location, GLint v0); +GLAPI void APIENTRY glUniform2i (GLint location, GLint v0, GLint v1); +GLAPI void APIENTRY glUniform3i (GLint location, GLint v0, GLint v1, GLint v2); +GLAPI void APIENTRY glUniform4i (GLint location, GLint v0, GLint v1, GLint v2, GLint v3); +GLAPI void APIENTRY glUniform1fv (GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glUniform2fv (GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glUniform3fv (GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glUniform4fv (GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glUniform1iv (GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glUniform2iv (GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glUniform3iv (GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glUniform4iv (GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glUniformMatrix2fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glUniformMatrix3fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glValidateProgram (GLuint program); +GLAPI void APIENTRY glVertexAttrib1d (GLuint index, GLdouble x); +GLAPI void APIENTRY glVertexAttrib1dv (GLuint index, const GLdouble *v); +GLAPI void APIENTRY glVertexAttrib1f (GLuint index, GLfloat x); +GLAPI void APIENTRY glVertexAttrib1fv (GLuint index, const GLfloat *v); +GLAPI void APIENTRY glVertexAttrib1s (GLuint index, GLshort x); +GLAPI void APIENTRY glVertexAttrib1sv (GLuint index, const GLshort *v); +GLAPI void APIENTRY glVertexAttrib2d (GLuint index, GLdouble x, GLdouble y); +GLAPI void APIENTRY glVertexAttrib2dv (GLuint index, const GLdouble *v); +GLAPI void APIENTRY glVertexAttrib2f (GLuint index, GLfloat x, GLfloat y); +GLAPI void APIENTRY glVertexAttrib2fv (GLuint index, const GLfloat *v); +GLAPI void APIENTRY glVertexAttrib2s (GLuint index, GLshort x, GLshort y); +GLAPI void APIENTRY glVertexAttrib2sv (GLuint index, const GLshort *v); +GLAPI void APIENTRY glVertexAttrib3d (GLuint index, GLdouble x, GLdouble y, GLdouble z); +GLAPI void APIENTRY glVertexAttrib3dv (GLuint index, const GLdouble *v); +GLAPI void APIENTRY glVertexAttrib3f (GLuint index, GLfloat x, GLfloat y, GLfloat z); +GLAPI void APIENTRY glVertexAttrib3fv (GLuint index, const GLfloat *v); +GLAPI void APIENTRY glVertexAttrib3s (GLuint index, GLshort x, GLshort y, GLshort z); +GLAPI void APIENTRY glVertexAttrib3sv (GLuint index, const GLshort *v); +GLAPI void APIENTRY glVertexAttrib4Nbv (GLuint index, const GLbyte *v); +GLAPI void APIENTRY glVertexAttrib4Niv (GLuint index, const GLint *v); +GLAPI void APIENTRY glVertexAttrib4Nsv (GLuint index, const GLshort *v); +GLAPI void APIENTRY glVertexAttrib4Nub (GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w); +GLAPI void APIENTRY glVertexAttrib4Nubv (GLuint index, const GLubyte *v); +GLAPI void APIENTRY glVertexAttrib4Nuiv (GLuint index, const GLuint *v); +GLAPI void APIENTRY glVertexAttrib4Nusv (GLuint index, const GLushort *v); +GLAPI void APIENTRY glVertexAttrib4bv (GLuint index, const GLbyte *v); +GLAPI void APIENTRY glVertexAttrib4d (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +GLAPI void APIENTRY glVertexAttrib4dv (GLuint index, const GLdouble *v); +GLAPI void APIENTRY glVertexAttrib4f (GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); +GLAPI void APIENTRY glVertexAttrib4fv (GLuint index, const GLfloat *v); +GLAPI void APIENTRY glVertexAttrib4iv (GLuint index, const GLint *v); +GLAPI void APIENTRY glVertexAttrib4s (GLuint index, GLshort x, GLshort y, GLshort z, GLshort w); +GLAPI void APIENTRY glVertexAttrib4sv (GLuint index, const GLshort *v); +GLAPI void APIENTRY glVertexAttrib4ubv (GLuint index, const GLubyte *v); +GLAPI void APIENTRY glVertexAttrib4uiv (GLuint index, const GLuint *v); +GLAPI void APIENTRY glVertexAttrib4usv (GLuint index, const GLushort *v); +GLAPI void APIENTRY glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer); +#endif +#endif /* GL_VERSION_2_0 */ + +#ifndef GL_VERSION_2_1 +#define GL_VERSION_2_1 1 +#define GL_PIXEL_PACK_BUFFER 0x88EB +#define GL_PIXEL_UNPACK_BUFFER 0x88EC +#define GL_PIXEL_PACK_BUFFER_BINDING 0x88ED +#define GL_PIXEL_UNPACK_BUFFER_BINDING 0x88EF +#define GL_FLOAT_MAT2x3 0x8B65 +#define GL_FLOAT_MAT2x4 0x8B66 +#define GL_FLOAT_MAT3x2 0x8B67 +#define GL_FLOAT_MAT3x4 0x8B68 +#define GL_FLOAT_MAT4x2 0x8B69 +#define GL_FLOAT_MAT4x3 0x8B6A +#define GL_SRGB 0x8C40 +#define GL_SRGB8 0x8C41 +#define GL_SRGB_ALPHA 0x8C42 +#define GL_SRGB8_ALPHA8 0x8C43 +#define GL_COMPRESSED_SRGB 0x8C48 +#define GL_COMPRESSED_SRGB_ALPHA 0x8C49 +typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X3FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X2FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X2FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X3FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glUniformMatrix2x3fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glUniformMatrix3x2fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glUniformMatrix2x4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glUniformMatrix4x2fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glUniformMatrix3x4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glUniformMatrix4x3fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +#endif +#endif /* GL_VERSION_2_1 */ + +#ifndef GL_VERSION_3_0 +#define GL_VERSION_3_0 1 +typedef khronos_uint16_t GLhalf; +#define GL_COMPARE_REF_TO_TEXTURE 0x884E +#define GL_CLIP_DISTANCE0 0x3000 +#define GL_CLIP_DISTANCE1 0x3001 +#define GL_CLIP_DISTANCE2 0x3002 +#define GL_CLIP_DISTANCE3 0x3003 +#define GL_CLIP_DISTANCE4 0x3004 +#define GL_CLIP_DISTANCE5 0x3005 +#define GL_CLIP_DISTANCE6 0x3006 +#define GL_CLIP_DISTANCE7 0x3007 +#define GL_MAX_CLIP_DISTANCES 0x0D32 +#define GL_MAJOR_VERSION 0x821B +#define GL_MINOR_VERSION 0x821C +#define GL_NUM_EXTENSIONS 0x821D +#define GL_CONTEXT_FLAGS 0x821E +#define GL_COMPRESSED_RED 0x8225 +#define GL_COMPRESSED_RG 0x8226 +#define GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT 0x00000001 +#define GL_RGBA32F 0x8814 +#define GL_RGB32F 0x8815 +#define GL_RGBA16F 0x881A +#define GL_RGB16F 0x881B +#define GL_VERTEX_ATTRIB_ARRAY_INTEGER 0x88FD +#define GL_MAX_ARRAY_TEXTURE_LAYERS 0x88FF +#define GL_MIN_PROGRAM_TEXEL_OFFSET 0x8904 +#define GL_MAX_PROGRAM_TEXEL_OFFSET 0x8905 +#define GL_CLAMP_READ_COLOR 0x891C +#define GL_FIXED_ONLY 0x891D +#define GL_MAX_VARYING_COMPONENTS 0x8B4B +#define GL_TEXTURE_1D_ARRAY 0x8C18 +#define GL_PROXY_TEXTURE_1D_ARRAY 0x8C19 +#define GL_TEXTURE_2D_ARRAY 0x8C1A +#define GL_PROXY_TEXTURE_2D_ARRAY 0x8C1B +#define GL_TEXTURE_BINDING_1D_ARRAY 0x8C1C +#define GL_TEXTURE_BINDING_2D_ARRAY 0x8C1D +#define GL_R11F_G11F_B10F 0x8C3A +#define GL_UNSIGNED_INT_10F_11F_11F_REV 0x8C3B +#define GL_RGB9_E5 0x8C3D +#define GL_UNSIGNED_INT_5_9_9_9_REV 0x8C3E +#define GL_TEXTURE_SHARED_SIZE 0x8C3F +#define GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH 0x8C76 +#define GL_TRANSFORM_FEEDBACK_BUFFER_MODE 0x8C7F +#define GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS 0x8C80 +#define GL_TRANSFORM_FEEDBACK_VARYINGS 0x8C83 +#define GL_TRANSFORM_FEEDBACK_BUFFER_START 0x8C84 +#define GL_TRANSFORM_FEEDBACK_BUFFER_SIZE 0x8C85 +#define GL_PRIMITIVES_GENERATED 0x8C87 +#define GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN 0x8C88 +#define GL_RASTERIZER_DISCARD 0x8C89 +#define GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS 0x8C8A +#define GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS 0x8C8B +#define GL_INTERLEAVED_ATTRIBS 0x8C8C +#define GL_SEPARATE_ATTRIBS 0x8C8D +#define GL_TRANSFORM_FEEDBACK_BUFFER 0x8C8E +#define GL_TRANSFORM_FEEDBACK_BUFFER_BINDING 0x8C8F +#define GL_RGBA32UI 0x8D70 +#define GL_RGB32UI 0x8D71 +#define GL_RGBA16UI 0x8D76 +#define GL_RGB16UI 0x8D77 +#define GL_RGBA8UI 0x8D7C +#define GL_RGB8UI 0x8D7D +#define GL_RGBA32I 0x8D82 +#define GL_RGB32I 0x8D83 +#define GL_RGBA16I 0x8D88 +#define GL_RGB16I 0x8D89 +#define GL_RGBA8I 0x8D8E +#define GL_RGB8I 0x8D8F +#define GL_RED_INTEGER 0x8D94 +#define GL_GREEN_INTEGER 0x8D95 +#define GL_BLUE_INTEGER 0x8D96 +#define GL_RGB_INTEGER 0x8D98 +#define GL_RGBA_INTEGER 0x8D99 +#define GL_BGR_INTEGER 0x8D9A +#define GL_BGRA_INTEGER 0x8D9B +#define GL_SAMPLER_1D_ARRAY 0x8DC0 +#define GL_SAMPLER_2D_ARRAY 0x8DC1 +#define GL_SAMPLER_1D_ARRAY_SHADOW 0x8DC3 +#define GL_SAMPLER_2D_ARRAY_SHADOW 0x8DC4 +#define GL_SAMPLER_CUBE_SHADOW 0x8DC5 +#define GL_UNSIGNED_INT_VEC2 0x8DC6 +#define GL_UNSIGNED_INT_VEC3 0x8DC7 +#define GL_UNSIGNED_INT_VEC4 0x8DC8 +#define GL_INT_SAMPLER_1D 0x8DC9 +#define GL_INT_SAMPLER_2D 0x8DCA +#define GL_INT_SAMPLER_3D 0x8DCB +#define GL_INT_SAMPLER_CUBE 0x8DCC +#define GL_INT_SAMPLER_1D_ARRAY 0x8DCE +#define GL_INT_SAMPLER_2D_ARRAY 0x8DCF +#define GL_UNSIGNED_INT_SAMPLER_1D 0x8DD1 +#define GL_UNSIGNED_INT_SAMPLER_2D 0x8DD2 +#define GL_UNSIGNED_INT_SAMPLER_3D 0x8DD3 +#define GL_UNSIGNED_INT_SAMPLER_CUBE 0x8DD4 +#define GL_UNSIGNED_INT_SAMPLER_1D_ARRAY 0x8DD6 +#define GL_UNSIGNED_INT_SAMPLER_2D_ARRAY 0x8DD7 +#define GL_QUERY_WAIT 0x8E13 +#define GL_QUERY_NO_WAIT 0x8E14 +#define GL_QUERY_BY_REGION_WAIT 0x8E15 +#define GL_QUERY_BY_REGION_NO_WAIT 0x8E16 +#define GL_BUFFER_ACCESS_FLAGS 0x911F +#define GL_BUFFER_MAP_LENGTH 0x9120 +#define GL_BUFFER_MAP_OFFSET 0x9121 +#define GL_DEPTH_COMPONENT32F 0x8CAC +#define GL_DEPTH32F_STENCIL8 0x8CAD +#define GL_FLOAT_32_UNSIGNED_INT_24_8_REV 0x8DAD +#define GL_INVALID_FRAMEBUFFER_OPERATION 0x0506 +#define GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING 0x8210 +#define GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE 0x8211 +#define GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE 0x8212 +#define GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE 0x8213 +#define GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE 0x8214 +#define GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE 0x8215 +#define GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE 0x8216 +#define GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE 0x8217 +#define GL_FRAMEBUFFER_DEFAULT 0x8218 +#define GL_FRAMEBUFFER_UNDEFINED 0x8219 +#define GL_DEPTH_STENCIL_ATTACHMENT 0x821A +#define GL_MAX_RENDERBUFFER_SIZE 0x84E8 +#define GL_DEPTH_STENCIL 0x84F9 +#define GL_UNSIGNED_INT_24_8 0x84FA +#define GL_DEPTH24_STENCIL8 0x88F0 +#define GL_TEXTURE_STENCIL_SIZE 0x88F1 +#define GL_TEXTURE_RED_TYPE 0x8C10 +#define GL_TEXTURE_GREEN_TYPE 0x8C11 +#define GL_TEXTURE_BLUE_TYPE 0x8C12 +#define GL_TEXTURE_ALPHA_TYPE 0x8C13 +#define GL_TEXTURE_DEPTH_TYPE 0x8C16 +#define GL_UNSIGNED_NORMALIZED 0x8C17 +#define GL_FRAMEBUFFER_BINDING 0x8CA6 +#define GL_DRAW_FRAMEBUFFER_BINDING 0x8CA6 +#define GL_RENDERBUFFER_BINDING 0x8CA7 +#define GL_READ_FRAMEBUFFER 0x8CA8 +#define GL_DRAW_FRAMEBUFFER 0x8CA9 +#define GL_READ_FRAMEBUFFER_BINDING 0x8CAA +#define GL_RENDERBUFFER_SAMPLES 0x8CAB +#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE 0x8CD0 +#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME 0x8CD1 +#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL 0x8CD2 +#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE 0x8CD3 +#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER 0x8CD4 +#define GL_FRAMEBUFFER_COMPLETE 0x8CD5 +#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT 0x8CD6 +#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT 0x8CD7 +#define GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER 0x8CDB +#define GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER 0x8CDC +#define GL_FRAMEBUFFER_UNSUPPORTED 0x8CDD +#define GL_MAX_COLOR_ATTACHMENTS 0x8CDF +#define GL_COLOR_ATTACHMENT0 0x8CE0 +#define GL_COLOR_ATTACHMENT1 0x8CE1 +#define GL_COLOR_ATTACHMENT2 0x8CE2 +#define GL_COLOR_ATTACHMENT3 0x8CE3 +#define GL_COLOR_ATTACHMENT4 0x8CE4 +#define GL_COLOR_ATTACHMENT5 0x8CE5 +#define GL_COLOR_ATTACHMENT6 0x8CE6 +#define GL_COLOR_ATTACHMENT7 0x8CE7 +#define GL_COLOR_ATTACHMENT8 0x8CE8 +#define GL_COLOR_ATTACHMENT9 0x8CE9 +#define GL_COLOR_ATTACHMENT10 0x8CEA +#define GL_COLOR_ATTACHMENT11 0x8CEB +#define GL_COLOR_ATTACHMENT12 0x8CEC +#define GL_COLOR_ATTACHMENT13 0x8CED +#define GL_COLOR_ATTACHMENT14 0x8CEE +#define GL_COLOR_ATTACHMENT15 0x8CEF +#define GL_COLOR_ATTACHMENT16 0x8CF0 +#define GL_COLOR_ATTACHMENT17 0x8CF1 +#define GL_COLOR_ATTACHMENT18 0x8CF2 +#define GL_COLOR_ATTACHMENT19 0x8CF3 +#define GL_COLOR_ATTACHMENT20 0x8CF4 +#define GL_COLOR_ATTACHMENT21 0x8CF5 +#define GL_COLOR_ATTACHMENT22 0x8CF6 +#define GL_COLOR_ATTACHMENT23 0x8CF7 +#define GL_COLOR_ATTACHMENT24 0x8CF8 +#define GL_COLOR_ATTACHMENT25 0x8CF9 +#define GL_COLOR_ATTACHMENT26 0x8CFA +#define GL_COLOR_ATTACHMENT27 0x8CFB +#define GL_COLOR_ATTACHMENT28 0x8CFC +#define GL_COLOR_ATTACHMENT29 0x8CFD +#define GL_COLOR_ATTACHMENT30 0x8CFE +#define GL_COLOR_ATTACHMENT31 0x8CFF +#define GL_DEPTH_ATTACHMENT 0x8D00 +#define GL_STENCIL_ATTACHMENT 0x8D20 +#define GL_FRAMEBUFFER 0x8D40 +#define GL_RENDERBUFFER 0x8D41 +#define GL_RENDERBUFFER_WIDTH 0x8D42 +#define GL_RENDERBUFFER_HEIGHT 0x8D43 +#define GL_RENDERBUFFER_INTERNAL_FORMAT 0x8D44 +#define GL_STENCIL_INDEX1 0x8D46 +#define GL_STENCIL_INDEX4 0x8D47 +#define GL_STENCIL_INDEX8 0x8D48 +#define GL_STENCIL_INDEX16 0x8D49 +#define GL_RENDERBUFFER_RED_SIZE 0x8D50 +#define GL_RENDERBUFFER_GREEN_SIZE 0x8D51 +#define GL_RENDERBUFFER_BLUE_SIZE 0x8D52 +#define GL_RENDERBUFFER_ALPHA_SIZE 0x8D53 +#define GL_RENDERBUFFER_DEPTH_SIZE 0x8D54 +#define GL_RENDERBUFFER_STENCIL_SIZE 0x8D55 +#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE 0x8D56 +#define GL_MAX_SAMPLES 0x8D57 +#define GL_FRAMEBUFFER_SRGB 0x8DB9 +#define GL_HALF_FLOAT 0x140B +#define GL_MAP_READ_BIT 0x0001 +#define GL_MAP_WRITE_BIT 0x0002 +#define GL_MAP_INVALIDATE_RANGE_BIT 0x0004 +#define GL_MAP_INVALIDATE_BUFFER_BIT 0x0008 +#define GL_MAP_FLUSH_EXPLICIT_BIT 0x0010 +#define GL_MAP_UNSYNCHRONIZED_BIT 0x0020 +#define GL_COMPRESSED_RED_RGTC1 0x8DBB +#define GL_COMPRESSED_SIGNED_RED_RGTC1 0x8DBC +#define GL_COMPRESSED_RG_RGTC2 0x8DBD +#define GL_COMPRESSED_SIGNED_RG_RGTC2 0x8DBE +#define GL_RG 0x8227 +#define GL_RG_INTEGER 0x8228 +#define GL_R8 0x8229 +#define GL_R16 0x822A +#define GL_RG8 0x822B +#define GL_RG16 0x822C +#define GL_R16F 0x822D +#define GL_R32F 0x822E +#define GL_RG16F 0x822F +#define GL_RG32F 0x8230 +#define GL_R8I 0x8231 +#define GL_R8UI 0x8232 +#define GL_R16I 0x8233 +#define GL_R16UI 0x8234 +#define GL_R32I 0x8235 +#define GL_R32UI 0x8236 +#define GL_RG8I 0x8237 +#define GL_RG8UI 0x8238 +#define GL_RG16I 0x8239 +#define GL_RG16UI 0x823A +#define GL_RG32I 0x823B +#define GL_RG32UI 0x823C +#define GL_VERTEX_ARRAY_BINDING 0x85B5 +typedef void (APIENTRYP PFNGLCOLORMASKIPROC) (GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a); +typedef void (APIENTRYP PFNGLGETBOOLEANI_VPROC) (GLenum target, GLuint index, GLboolean *data); +typedef void (APIENTRYP PFNGLGETINTEGERI_VPROC) (GLenum target, GLuint index, GLint *data); +typedef void (APIENTRYP PFNGLENABLEIPROC) (GLenum target, GLuint index); +typedef void (APIENTRYP PFNGLDISABLEIPROC) (GLenum target, GLuint index); +typedef GLboolean (APIENTRYP PFNGLISENABLEDIPROC) (GLenum target, GLuint index); +typedef void (APIENTRYP PFNGLBEGINTRANSFORMFEEDBACKPROC) (GLenum primitiveMode); +typedef void (APIENTRYP PFNGLENDTRANSFORMFEEDBACKPROC) (void); +typedef void (APIENTRYP PFNGLBINDBUFFERRANGEPROC) (GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size); +typedef void (APIENTRYP PFNGLBINDBUFFERBASEPROC) (GLenum target, GLuint index, GLuint buffer); +typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKVARYINGSPROC) (GLuint program, GLsizei count, const GLchar *const*varyings, GLenum bufferMode); +typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKVARYINGPROC) (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLsizei *size, GLenum *type, GLchar *name); +typedef void (APIENTRYP PFNGLCLAMPCOLORPROC) (GLenum target, GLenum clamp); +typedef void (APIENTRYP PFNGLBEGINCONDITIONALRENDERPROC) (GLuint id, GLenum mode); +typedef void (APIENTRYP PFNGLENDCONDITIONALRENDERPROC) (void); +typedef void (APIENTRYP PFNGLVERTEXATTRIBIPOINTERPROC) (GLuint index, GLint size, GLenum type, GLsizei stride, const void *pointer); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIIVPROC) (GLuint index, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIUIVPROC) (GLuint index, GLenum pname, GLuint *params); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI1IPROC) (GLuint index, GLint x); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI2IPROC) (GLuint index, GLint x, GLint y); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI3IPROC) (GLuint index, GLint x, GLint y, GLint z); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI4IPROC) (GLuint index, GLint x, GLint y, GLint z, GLint w); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI1UIPROC) (GLuint index, GLuint x); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI2UIPROC) (GLuint index, GLuint x, GLuint y); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI3UIPROC) (GLuint index, GLuint x, GLuint y, GLuint z); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UIPROC) (GLuint index, GLuint x, GLuint y, GLuint z, GLuint w); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI1IVPROC) (GLuint index, const GLint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI2IVPROC) (GLuint index, const GLint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI3IVPROC) (GLuint index, const GLint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI4IVPROC) (GLuint index, const GLint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI1UIVPROC) (GLuint index, const GLuint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI2UIVPROC) (GLuint index, const GLuint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI3UIVPROC) (GLuint index, const GLuint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UIVPROC) (GLuint index, const GLuint *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI4BVPROC) (GLuint index, const GLbyte *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI4SVPROC) (GLuint index, const GLshort *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UBVPROC) (GLuint index, const GLubyte *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBI4USVPROC) (GLuint index, const GLushort *v); +typedef void (APIENTRYP PFNGLGETUNIFORMUIVPROC) (GLuint program, GLint location, GLuint *params); +typedef void (APIENTRYP PFNGLBINDFRAGDATALOCATIONPROC) (GLuint program, GLuint color, const GLchar *name); +typedef GLint (APIENTRYP PFNGLGETFRAGDATALOCATIONPROC) (GLuint program, const GLchar *name); +typedef void (APIENTRYP PFNGLUNIFORM1UIPROC) (GLint location, GLuint v0); +typedef void (APIENTRYP PFNGLUNIFORM2UIPROC) (GLint location, GLuint v0, GLuint v1); +typedef void (APIENTRYP PFNGLUNIFORM3UIPROC) (GLint location, GLuint v0, GLuint v1, GLuint v2); +typedef void (APIENTRYP PFNGLUNIFORM4UIPROC) (GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3); +typedef void (APIENTRYP PFNGLUNIFORM1UIVPROC) (GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLUNIFORM2UIVPROC) (GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLUNIFORM3UIVPROC) (GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLUNIFORM4UIVPROC) (GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLTEXPARAMETERIIVPROC) (GLenum target, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLTEXPARAMETERIUIVPROC) (GLenum target, GLenum pname, const GLuint *params); +typedef void (APIENTRYP PFNGLGETTEXPARAMETERIIVPROC) (GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETTEXPARAMETERIUIVPROC) (GLenum target, GLenum pname, GLuint *params); +typedef void (APIENTRYP PFNGLCLEARBUFFERIVPROC) (GLenum buffer, GLint drawbuffer, const GLint *value); +typedef void (APIENTRYP PFNGLCLEARBUFFERUIVPROC) (GLenum buffer, GLint drawbuffer, const GLuint *value); +typedef void (APIENTRYP PFNGLCLEARBUFFERFVPROC) (GLenum buffer, GLint drawbuffer, const GLfloat *value); +typedef void (APIENTRYP PFNGLCLEARBUFFERFIPROC) (GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil); +typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGIPROC) (GLenum name, GLuint index); +typedef GLboolean (APIENTRYP PFNGLISRENDERBUFFERPROC) (GLuint renderbuffer); +typedef void (APIENTRYP PFNGLBINDRENDERBUFFERPROC) (GLenum target, GLuint renderbuffer); +typedef void (APIENTRYP PFNGLDELETERENDERBUFFERSPROC) (GLsizei n, const GLuint *renderbuffers); +typedef void (APIENTRYP PFNGLGENRENDERBUFFERSPROC) (GLsizei n, GLuint *renderbuffers); +typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEPROC) (GLenum target, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLGETRENDERBUFFERPARAMETERIVPROC) (GLenum target, GLenum pname, GLint *params); +typedef GLboolean (APIENTRYP PFNGLISFRAMEBUFFERPROC) (GLuint framebuffer); +typedef void (APIENTRYP PFNGLBINDFRAMEBUFFERPROC) (GLenum target, GLuint framebuffer); +typedef void (APIENTRYP PFNGLDELETEFRAMEBUFFERSPROC) (GLsizei n, const GLuint *framebuffers); +typedef void (APIENTRYP PFNGLGENFRAMEBUFFERSPROC) (GLsizei n, GLuint *framebuffers); +typedef GLenum (APIENTRYP PFNGLCHECKFRAMEBUFFERSTATUSPROC) (GLenum target); +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE1DPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE3DPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset); +typedef void (APIENTRYP PFNGLFRAMEBUFFERRENDERBUFFERPROC) (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); +typedef void (APIENTRYP PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC) (GLenum target, GLenum attachment, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGENERATEMIPMAPPROC) (GLenum target); +typedef void (APIENTRYP PFNGLBLITFRAMEBUFFERPROC) (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter); +typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURELAYERPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer); +typedef void *(APIENTRYP PFNGLMAPBUFFERRANGEPROC) (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access); +typedef void (APIENTRYP PFNGLFLUSHMAPPEDBUFFERRANGEPROC) (GLenum target, GLintptr offset, GLsizeiptr length); +typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC) (GLuint array); +typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC) (GLsizei n, const GLuint *arrays); +typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays); +typedef GLboolean (APIENTRYP PFNGLISVERTEXARRAYPROC) (GLuint array); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glColorMaski (GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a); +GLAPI void APIENTRY glGetBooleani_v (GLenum target, GLuint index, GLboolean *data); +GLAPI void APIENTRY glGetIntegeri_v (GLenum target, GLuint index, GLint *data); +GLAPI void APIENTRY glEnablei (GLenum target, GLuint index); +GLAPI void APIENTRY glDisablei (GLenum target, GLuint index); +GLAPI GLboolean APIENTRY glIsEnabledi (GLenum target, GLuint index); +GLAPI void APIENTRY glBeginTransformFeedback (GLenum primitiveMode); +GLAPI void APIENTRY glEndTransformFeedback (void); +GLAPI void APIENTRY glBindBufferRange (GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size); +GLAPI void APIENTRY glBindBufferBase (GLenum target, GLuint index, GLuint buffer); +GLAPI void APIENTRY glTransformFeedbackVaryings (GLuint program, GLsizei count, const GLchar *const*varyings, GLenum bufferMode); +GLAPI void APIENTRY glGetTransformFeedbackVarying (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLsizei *size, GLenum *type, GLchar *name); +GLAPI void APIENTRY glClampColor (GLenum target, GLenum clamp); +GLAPI void APIENTRY glBeginConditionalRender (GLuint id, GLenum mode); +GLAPI void APIENTRY glEndConditionalRender (void); +GLAPI void APIENTRY glVertexAttribIPointer (GLuint index, GLint size, GLenum type, GLsizei stride, const void *pointer); +GLAPI void APIENTRY glGetVertexAttribIiv (GLuint index, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetVertexAttribIuiv (GLuint index, GLenum pname, GLuint *params); +GLAPI void APIENTRY glVertexAttribI1i (GLuint index, GLint x); +GLAPI void APIENTRY glVertexAttribI2i (GLuint index, GLint x, GLint y); +GLAPI void APIENTRY glVertexAttribI3i (GLuint index, GLint x, GLint y, GLint z); +GLAPI void APIENTRY glVertexAttribI4i (GLuint index, GLint x, GLint y, GLint z, GLint w); +GLAPI void APIENTRY glVertexAttribI1ui (GLuint index, GLuint x); +GLAPI void APIENTRY glVertexAttribI2ui (GLuint index, GLuint x, GLuint y); +GLAPI void APIENTRY glVertexAttribI3ui (GLuint index, GLuint x, GLuint y, GLuint z); +GLAPI void APIENTRY glVertexAttribI4ui (GLuint index, GLuint x, GLuint y, GLuint z, GLuint w); +GLAPI void APIENTRY glVertexAttribI1iv (GLuint index, const GLint *v); +GLAPI void APIENTRY glVertexAttribI2iv (GLuint index, const GLint *v); +GLAPI void APIENTRY glVertexAttribI3iv (GLuint index, const GLint *v); +GLAPI void APIENTRY glVertexAttribI4iv (GLuint index, const GLint *v); +GLAPI void APIENTRY glVertexAttribI1uiv (GLuint index, const GLuint *v); +GLAPI void APIENTRY glVertexAttribI2uiv (GLuint index, const GLuint *v); +GLAPI void APIENTRY glVertexAttribI3uiv (GLuint index, const GLuint *v); +GLAPI void APIENTRY glVertexAttribI4uiv (GLuint index, const GLuint *v); +GLAPI void APIENTRY glVertexAttribI4bv (GLuint index, const GLbyte *v); +GLAPI void APIENTRY glVertexAttribI4sv (GLuint index, const GLshort *v); +GLAPI void APIENTRY glVertexAttribI4ubv (GLuint index, const GLubyte *v); +GLAPI void APIENTRY glVertexAttribI4usv (GLuint index, const GLushort *v); +GLAPI void APIENTRY glGetUniformuiv (GLuint program, GLint location, GLuint *params); +GLAPI void APIENTRY glBindFragDataLocation (GLuint program, GLuint color, const GLchar *name); +GLAPI GLint APIENTRY glGetFragDataLocation (GLuint program, const GLchar *name); +GLAPI void APIENTRY glUniform1ui (GLint location, GLuint v0); +GLAPI void APIENTRY glUniform2ui (GLint location, GLuint v0, GLuint v1); +GLAPI void APIENTRY glUniform3ui (GLint location, GLuint v0, GLuint v1, GLuint v2); +GLAPI void APIENTRY glUniform4ui (GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3); +GLAPI void APIENTRY glUniform1uiv (GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glUniform2uiv (GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glUniform3uiv (GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glUniform4uiv (GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glTexParameterIiv (GLenum target, GLenum pname, const GLint *params); +GLAPI void APIENTRY glTexParameterIuiv (GLenum target, GLenum pname, const GLuint *params); +GLAPI void APIENTRY glGetTexParameterIiv (GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetTexParameterIuiv (GLenum target, GLenum pname, GLuint *params); +GLAPI void APIENTRY glClearBufferiv (GLenum buffer, GLint drawbuffer, const GLint *value); +GLAPI void APIENTRY glClearBufferuiv (GLenum buffer, GLint drawbuffer, const GLuint *value); +GLAPI void APIENTRY glClearBufferfv (GLenum buffer, GLint drawbuffer, const GLfloat *value); +GLAPI void APIENTRY glClearBufferfi (GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil); +GLAPI const GLubyte *APIENTRY glGetStringi (GLenum name, GLuint index); +GLAPI GLboolean APIENTRY glIsRenderbuffer (GLuint renderbuffer); +GLAPI void APIENTRY glBindRenderbuffer (GLenum target, GLuint renderbuffer); +GLAPI void APIENTRY glDeleteRenderbuffers (GLsizei n, const GLuint *renderbuffers); +GLAPI void APIENTRY glGenRenderbuffers (GLsizei n, GLuint *renderbuffers); +GLAPI void APIENTRY glRenderbufferStorage (GLenum target, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glGetRenderbufferParameteriv (GLenum target, GLenum pname, GLint *params); +GLAPI GLboolean APIENTRY glIsFramebuffer (GLuint framebuffer); +GLAPI void APIENTRY glBindFramebuffer (GLenum target, GLuint framebuffer); +GLAPI void APIENTRY glDeleteFramebuffers (GLsizei n, const GLuint *framebuffers); +GLAPI void APIENTRY glGenFramebuffers (GLsizei n, GLuint *framebuffers); +GLAPI GLenum APIENTRY glCheckFramebufferStatus (GLenum target); +GLAPI void APIENTRY glFramebufferTexture1D (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +GLAPI void APIENTRY glFramebufferTexture2D (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +GLAPI void APIENTRY glFramebufferTexture3D (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset); +GLAPI void APIENTRY glFramebufferRenderbuffer (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); +GLAPI void APIENTRY glGetFramebufferAttachmentParameteriv (GLenum target, GLenum attachment, GLenum pname, GLint *params); +GLAPI void APIENTRY glGenerateMipmap (GLenum target); +GLAPI void APIENTRY glBlitFramebuffer (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter); +GLAPI void APIENTRY glRenderbufferStorageMultisample (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glFramebufferTextureLayer (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer); +GLAPI void *APIENTRY glMapBufferRange (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access); +GLAPI void APIENTRY glFlushMappedBufferRange (GLenum target, GLintptr offset, GLsizeiptr length); +GLAPI void APIENTRY glBindVertexArray (GLuint array); +GLAPI void APIENTRY glDeleteVertexArrays (GLsizei n, const GLuint *arrays); +GLAPI void APIENTRY glGenVertexArrays (GLsizei n, GLuint *arrays); +GLAPI GLboolean APIENTRY glIsVertexArray (GLuint array); +#endif +#endif /* GL_VERSION_3_0 */ + +#ifndef GL_VERSION_3_1 +#define GL_VERSION_3_1 1 +#define GL_SAMPLER_2D_RECT 0x8B63 +#define GL_SAMPLER_2D_RECT_SHADOW 0x8B64 +#define GL_SAMPLER_BUFFER 0x8DC2 +#define GL_INT_SAMPLER_2D_RECT 0x8DCD +#define GL_INT_SAMPLER_BUFFER 0x8DD0 +#define GL_UNSIGNED_INT_SAMPLER_2D_RECT 0x8DD5 +#define GL_UNSIGNED_INT_SAMPLER_BUFFER 0x8DD8 +#define GL_TEXTURE_BUFFER 0x8C2A +#define GL_MAX_TEXTURE_BUFFER_SIZE 0x8C2B +#define GL_TEXTURE_BINDING_BUFFER 0x8C2C +#define GL_TEXTURE_BUFFER_DATA_STORE_BINDING 0x8C2D +#define GL_TEXTURE_RECTANGLE 0x84F5 +#define GL_TEXTURE_BINDING_RECTANGLE 0x84F6 +#define GL_PROXY_TEXTURE_RECTANGLE 0x84F7 +#define GL_MAX_RECTANGLE_TEXTURE_SIZE 0x84F8 +#define GL_R8_SNORM 0x8F94 +#define GL_RG8_SNORM 0x8F95 +#define GL_RGB8_SNORM 0x8F96 +#define GL_RGBA8_SNORM 0x8F97 +#define GL_R16_SNORM 0x8F98 +#define GL_RG16_SNORM 0x8F99 +#define GL_RGB16_SNORM 0x8F9A +#define GL_RGBA16_SNORM 0x8F9B +#define GL_SIGNED_NORMALIZED 0x8F9C +#define GL_PRIMITIVE_RESTART 0x8F9D +#define GL_PRIMITIVE_RESTART_INDEX 0x8F9E +#define GL_COPY_READ_BUFFER 0x8F36 +#define GL_COPY_WRITE_BUFFER 0x8F37 +#define GL_UNIFORM_BUFFER 0x8A11 +#define GL_UNIFORM_BUFFER_BINDING 0x8A28 +#define GL_UNIFORM_BUFFER_START 0x8A29 +#define GL_UNIFORM_BUFFER_SIZE 0x8A2A +#define GL_MAX_VERTEX_UNIFORM_BLOCKS 0x8A2B +#define GL_MAX_GEOMETRY_UNIFORM_BLOCKS 0x8A2C +#define GL_MAX_FRAGMENT_UNIFORM_BLOCKS 0x8A2D +#define GL_MAX_COMBINED_UNIFORM_BLOCKS 0x8A2E +#define GL_MAX_UNIFORM_BUFFER_BINDINGS 0x8A2F +#define GL_MAX_UNIFORM_BLOCK_SIZE 0x8A30 +#define GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS 0x8A31 +#define GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS 0x8A32 +#define GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS 0x8A33 +#define GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT 0x8A34 +#define GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH 0x8A35 +#define GL_ACTIVE_UNIFORM_BLOCKS 0x8A36 +#define GL_UNIFORM_TYPE 0x8A37 +#define GL_UNIFORM_SIZE 0x8A38 +#define GL_UNIFORM_NAME_LENGTH 0x8A39 +#define GL_UNIFORM_BLOCK_INDEX 0x8A3A +#define GL_UNIFORM_OFFSET 0x8A3B +#define GL_UNIFORM_ARRAY_STRIDE 0x8A3C +#define GL_UNIFORM_MATRIX_STRIDE 0x8A3D +#define GL_UNIFORM_IS_ROW_MAJOR 0x8A3E +#define GL_UNIFORM_BLOCK_BINDING 0x8A3F +#define GL_UNIFORM_BLOCK_DATA_SIZE 0x8A40 +#define GL_UNIFORM_BLOCK_NAME_LENGTH 0x8A41 +#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS 0x8A42 +#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES 0x8A43 +#define GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER 0x8A44 +#define GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER 0x8A45 +#define GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER 0x8A46 +#define GL_INVALID_INDEX 0xFFFFFFFFu +typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDPROC) (GLenum mode, GLint first, GLsizei count, GLsizei instancecount); +typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount); +typedef void (APIENTRYP PFNGLTEXBUFFERPROC) (GLenum target, GLenum internalformat, GLuint buffer); +typedef void (APIENTRYP PFNGLPRIMITIVERESTARTINDEXPROC) (GLuint index); +typedef void (APIENTRYP PFNGLCOPYBUFFERSUBDATAPROC) (GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size); +typedef void (APIENTRYP PFNGLGETUNIFORMINDICESPROC) (GLuint program, GLsizei uniformCount, const GLchar *const*uniformNames, GLuint *uniformIndices); +typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMSIVPROC) (GLuint program, GLsizei uniformCount, const GLuint *uniformIndices, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMNAMEPROC) (GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformName); +typedef GLuint (APIENTRYP PFNGLGETUNIFORMBLOCKINDEXPROC) (GLuint program, const GLchar *uniformBlockName); +typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMBLOCKIVPROC) (GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC) (GLuint program, GLuint uniformBlockIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformBlockName); +typedef void (APIENTRYP PFNGLUNIFORMBLOCKBINDINGPROC) (GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawArraysInstanced (GLenum mode, GLint first, GLsizei count, GLsizei instancecount); +GLAPI void APIENTRY glDrawElementsInstanced (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount); +GLAPI void APIENTRY glTexBuffer (GLenum target, GLenum internalformat, GLuint buffer); +GLAPI void APIENTRY glPrimitiveRestartIndex (GLuint index); +GLAPI void APIENTRY glCopyBufferSubData (GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size); +GLAPI void APIENTRY glGetUniformIndices (GLuint program, GLsizei uniformCount, const GLchar *const*uniformNames, GLuint *uniformIndices); +GLAPI void APIENTRY glGetActiveUniformsiv (GLuint program, GLsizei uniformCount, const GLuint *uniformIndices, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetActiveUniformName (GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformName); +GLAPI GLuint APIENTRY glGetUniformBlockIndex (GLuint program, const GLchar *uniformBlockName); +GLAPI void APIENTRY glGetActiveUniformBlockiv (GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetActiveUniformBlockName (GLuint program, GLuint uniformBlockIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformBlockName); +GLAPI void APIENTRY glUniformBlockBinding (GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding); +#endif +#endif /* GL_VERSION_3_1 */ + +#ifndef GL_VERSION_3_2 +#define GL_VERSION_3_2 1 +typedef struct __GLsync *GLsync; +typedef khronos_uint64_t GLuint64; +typedef khronos_int64_t GLint64; +#define GL_CONTEXT_CORE_PROFILE_BIT 0x00000001 +#define GL_CONTEXT_COMPATIBILITY_PROFILE_BIT 0x00000002 +#define GL_LINES_ADJACENCY 0x000A +#define GL_LINE_STRIP_ADJACENCY 0x000B +#define GL_TRIANGLES_ADJACENCY 0x000C +#define GL_TRIANGLE_STRIP_ADJACENCY 0x000D +#define GL_PROGRAM_POINT_SIZE 0x8642 +#define GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS 0x8C29 +#define GL_FRAMEBUFFER_ATTACHMENT_LAYERED 0x8DA7 +#define GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS 0x8DA8 +#define GL_GEOMETRY_SHADER 0x8DD9 +#define GL_GEOMETRY_VERTICES_OUT 0x8916 +#define GL_GEOMETRY_INPUT_TYPE 0x8917 +#define GL_GEOMETRY_OUTPUT_TYPE 0x8918 +#define GL_MAX_GEOMETRY_UNIFORM_COMPONENTS 0x8DDF +#define GL_MAX_GEOMETRY_OUTPUT_VERTICES 0x8DE0 +#define GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS 0x8DE1 +#define GL_MAX_VERTEX_OUTPUT_COMPONENTS 0x9122 +#define GL_MAX_GEOMETRY_INPUT_COMPONENTS 0x9123 +#define GL_MAX_GEOMETRY_OUTPUT_COMPONENTS 0x9124 +#define GL_MAX_FRAGMENT_INPUT_COMPONENTS 0x9125 +#define GL_CONTEXT_PROFILE_MASK 0x9126 +#define GL_DEPTH_CLAMP 0x864F +#define GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION 0x8E4C +#define GL_FIRST_VERTEX_CONVENTION 0x8E4D +#define GL_LAST_VERTEX_CONVENTION 0x8E4E +#define GL_PROVOKING_VERTEX 0x8E4F +#define GL_TEXTURE_CUBE_MAP_SEAMLESS 0x884F +#define GL_MAX_SERVER_WAIT_TIMEOUT 0x9111 +#define GL_OBJECT_TYPE 0x9112 +#define GL_SYNC_CONDITION 0x9113 +#define GL_SYNC_STATUS 0x9114 +#define GL_SYNC_FLAGS 0x9115 +#define GL_SYNC_FENCE 0x9116 +#define GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117 +#define GL_UNSIGNALED 0x9118 +#define GL_SIGNALED 0x9119 +#define GL_ALREADY_SIGNALED 0x911A +#define GL_TIMEOUT_EXPIRED 0x911B +#define GL_CONDITION_SATISFIED 0x911C +#define GL_WAIT_FAILED 0x911D +#define GL_TIMEOUT_IGNORED 0xFFFFFFFFFFFFFFFFull +#define GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001 +#define GL_SAMPLE_POSITION 0x8E50 +#define GL_SAMPLE_MASK 0x8E51 +#define GL_SAMPLE_MASK_VALUE 0x8E52 +#define GL_MAX_SAMPLE_MASK_WORDS 0x8E59 +#define GL_TEXTURE_2D_MULTISAMPLE 0x9100 +#define GL_PROXY_TEXTURE_2D_MULTISAMPLE 0x9101 +#define GL_TEXTURE_2D_MULTISAMPLE_ARRAY 0x9102 +#define GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY 0x9103 +#define GL_TEXTURE_BINDING_2D_MULTISAMPLE 0x9104 +#define GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY 0x9105 +#define GL_TEXTURE_SAMPLES 0x9106 +#define GL_TEXTURE_FIXED_SAMPLE_LOCATIONS 0x9107 +#define GL_SAMPLER_2D_MULTISAMPLE 0x9108 +#define GL_INT_SAMPLER_2D_MULTISAMPLE 0x9109 +#define GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE 0x910A +#define GL_SAMPLER_2D_MULTISAMPLE_ARRAY 0x910B +#define GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY 0x910C +#define GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY 0x910D +#define GL_MAX_COLOR_TEXTURE_SAMPLES 0x910E +#define GL_MAX_DEPTH_TEXTURE_SAMPLES 0x910F +#define GL_MAX_INTEGER_SAMPLES 0x9110 +typedef void (APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); +typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex); +typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex); +typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount, const GLint *basevertex); +typedef void (APIENTRYP PFNGLPROVOKINGVERTEXPROC) (GLenum mode); +typedef GLsync (APIENTRYP PFNGLFENCESYNCPROC) (GLenum condition, GLbitfield flags); +typedef GLboolean (APIENTRYP PFNGLISSYNCPROC) (GLsync sync); +typedef void (APIENTRYP PFNGLDELETESYNCPROC) (GLsync sync); +typedef GLenum (APIENTRYP PFNGLCLIENTWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout); +typedef void (APIENTRYP PFNGLWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout); +typedef void (APIENTRYP PFNGLGETINTEGER64VPROC) (GLenum pname, GLint64 *data); +typedef void (APIENTRYP PFNGLGETSYNCIVPROC) (GLsync sync, GLenum pname, GLsizei count, GLsizei *length, GLint *values); +typedef void (APIENTRYP PFNGLGETINTEGER64I_VPROC) (GLenum target, GLuint index, GLint64 *data); +typedef void (APIENTRYP PFNGLGETBUFFERPARAMETERI64VPROC) (GLenum target, GLenum pname, GLint64 *params); +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTUREPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLTEXIMAGE2DMULTISAMPLEPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations); +typedef void (APIENTRYP PFNGLTEXIMAGE3DMULTISAMPLEPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); +typedef void (APIENTRYP PFNGLGETMULTISAMPLEFVPROC) (GLenum pname, GLuint index, GLfloat *val); +typedef void (APIENTRYP PFNGLSAMPLEMASKIPROC) (GLuint maskNumber, GLbitfield mask); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawElementsBaseVertex (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); +GLAPI void APIENTRY glDrawRangeElementsBaseVertex (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex); +GLAPI void APIENTRY glDrawElementsInstancedBaseVertex (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex); +GLAPI void APIENTRY glMultiDrawElementsBaseVertex (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount, const GLint *basevertex); +GLAPI void APIENTRY glProvokingVertex (GLenum mode); +GLAPI GLsync APIENTRY glFenceSync (GLenum condition, GLbitfield flags); +GLAPI GLboolean APIENTRY glIsSync (GLsync sync); +GLAPI void APIENTRY glDeleteSync (GLsync sync); +GLAPI GLenum APIENTRY glClientWaitSync (GLsync sync, GLbitfield flags, GLuint64 timeout); +GLAPI void APIENTRY glWaitSync (GLsync sync, GLbitfield flags, GLuint64 timeout); +GLAPI void APIENTRY glGetInteger64v (GLenum pname, GLint64 *data); +GLAPI void APIENTRY glGetSynciv (GLsync sync, GLenum pname, GLsizei count, GLsizei *length, GLint *values); +GLAPI void APIENTRY glGetInteger64i_v (GLenum target, GLuint index, GLint64 *data); +GLAPI void APIENTRY glGetBufferParameteri64v (GLenum target, GLenum pname, GLint64 *params); +GLAPI void APIENTRY glFramebufferTexture (GLenum target, GLenum attachment, GLuint texture, GLint level); +GLAPI void APIENTRY glTexImage2DMultisample (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations); +GLAPI void APIENTRY glTexImage3DMultisample (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); +GLAPI void APIENTRY glGetMultisamplefv (GLenum pname, GLuint index, GLfloat *val); +GLAPI void APIENTRY glSampleMaski (GLuint maskNumber, GLbitfield mask); +#endif +#endif /* GL_VERSION_3_2 */ + +#ifndef GL_VERSION_3_3 +#define GL_VERSION_3_3 1 +#define GL_VERTEX_ATTRIB_ARRAY_DIVISOR 0x88FE +#define GL_SRC1_COLOR 0x88F9 +#define GL_ONE_MINUS_SRC1_COLOR 0x88FA +#define GL_ONE_MINUS_SRC1_ALPHA 0x88FB +#define GL_MAX_DUAL_SOURCE_DRAW_BUFFERS 0x88FC +#define GL_ANY_SAMPLES_PASSED 0x8C2F +#define GL_SAMPLER_BINDING 0x8919 +#define GL_RGB10_A2UI 0x906F +#define GL_TEXTURE_SWIZZLE_R 0x8E42 +#define GL_TEXTURE_SWIZZLE_G 0x8E43 +#define GL_TEXTURE_SWIZZLE_B 0x8E44 +#define GL_TEXTURE_SWIZZLE_A 0x8E45 +#define GL_TEXTURE_SWIZZLE_RGBA 0x8E46 +#define GL_TIME_ELAPSED 0x88BF +#define GL_TIMESTAMP 0x8E28 +#define GL_INT_2_10_10_10_REV 0x8D9F +typedef void (APIENTRYP PFNGLBINDFRAGDATALOCATIONINDEXEDPROC) (GLuint program, GLuint colorNumber, GLuint index, const GLchar *name); +typedef GLint (APIENTRYP PFNGLGETFRAGDATAINDEXPROC) (GLuint program, const GLchar *name); +typedef void (APIENTRYP PFNGLGENSAMPLERSPROC) (GLsizei count, GLuint *samplers); +typedef void (APIENTRYP PFNGLDELETESAMPLERSPROC) (GLsizei count, const GLuint *samplers); +typedef GLboolean (APIENTRYP PFNGLISSAMPLERPROC) (GLuint sampler); +typedef void (APIENTRYP PFNGLBINDSAMPLERPROC) (GLuint unit, GLuint sampler); +typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIPROC) (GLuint sampler, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIVPROC) (GLuint sampler, GLenum pname, const GLint *param); +typedef void (APIENTRYP PFNGLSAMPLERPARAMETERFPROC) (GLuint sampler, GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLSAMPLERPARAMETERFVPROC) (GLuint sampler, GLenum pname, const GLfloat *param); +typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIIVPROC) (GLuint sampler, GLenum pname, const GLint *param); +typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIUIVPROC) (GLuint sampler, GLenum pname, const GLuint *param); +typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIVPROC) (GLuint sampler, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIIVPROC) (GLuint sampler, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERFVPROC) (GLuint sampler, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIUIVPROC) (GLuint sampler, GLenum pname, GLuint *params); +typedef void (APIENTRYP PFNGLQUERYCOUNTERPROC) (GLuint id, GLenum target); +typedef void (APIENTRYP PFNGLGETQUERYOBJECTI64VPROC) (GLuint id, GLenum pname, GLint64 *params); +typedef void (APIENTRYP PFNGLGETQUERYOBJECTUI64VPROC) (GLuint id, GLenum pname, GLuint64 *params); +typedef void (APIENTRYP PFNGLVERTEXATTRIBDIVISORPROC) (GLuint index, GLuint divisor); +typedef void (APIENTRYP PFNGLVERTEXATTRIBP1UIPROC) (GLuint index, GLenum type, GLboolean normalized, GLuint value); +typedef void (APIENTRYP PFNGLVERTEXATTRIBP1UIVPROC) (GLuint index, GLenum type, GLboolean normalized, const GLuint *value); +typedef void (APIENTRYP PFNGLVERTEXATTRIBP2UIPROC) (GLuint index, GLenum type, GLboolean normalized, GLuint value); +typedef void (APIENTRYP PFNGLVERTEXATTRIBP2UIVPROC) (GLuint index, GLenum type, GLboolean normalized, const GLuint *value); +typedef void (APIENTRYP PFNGLVERTEXATTRIBP3UIPROC) (GLuint index, GLenum type, GLboolean normalized, GLuint value); +typedef void (APIENTRYP PFNGLVERTEXATTRIBP3UIVPROC) (GLuint index, GLenum type, GLboolean normalized, const GLuint *value); +typedef void (APIENTRYP PFNGLVERTEXATTRIBP4UIPROC) (GLuint index, GLenum type, GLboolean normalized, GLuint value); +typedef void (APIENTRYP PFNGLVERTEXATTRIBP4UIVPROC) (GLuint index, GLenum type, GLboolean normalized, const GLuint *value); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBindFragDataLocationIndexed (GLuint program, GLuint colorNumber, GLuint index, const GLchar *name); +GLAPI GLint APIENTRY glGetFragDataIndex (GLuint program, const GLchar *name); +GLAPI void APIENTRY glGenSamplers (GLsizei count, GLuint *samplers); +GLAPI void APIENTRY glDeleteSamplers (GLsizei count, const GLuint *samplers); +GLAPI GLboolean APIENTRY glIsSampler (GLuint sampler); +GLAPI void APIENTRY glBindSampler (GLuint unit, GLuint sampler); +GLAPI void APIENTRY glSamplerParameteri (GLuint sampler, GLenum pname, GLint param); +GLAPI void APIENTRY glSamplerParameteriv (GLuint sampler, GLenum pname, const GLint *param); +GLAPI void APIENTRY glSamplerParameterf (GLuint sampler, GLenum pname, GLfloat param); +GLAPI void APIENTRY glSamplerParameterfv (GLuint sampler, GLenum pname, const GLfloat *param); +GLAPI void APIENTRY glSamplerParameterIiv (GLuint sampler, GLenum pname, const GLint *param); +GLAPI void APIENTRY glSamplerParameterIuiv (GLuint sampler, GLenum pname, const GLuint *param); +GLAPI void APIENTRY glGetSamplerParameteriv (GLuint sampler, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetSamplerParameterIiv (GLuint sampler, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetSamplerParameterfv (GLuint sampler, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetSamplerParameterIuiv (GLuint sampler, GLenum pname, GLuint *params); +GLAPI void APIENTRY glQueryCounter (GLuint id, GLenum target); +GLAPI void APIENTRY glGetQueryObjecti64v (GLuint id, GLenum pname, GLint64 *params); +GLAPI void APIENTRY glGetQueryObjectui64v (GLuint id, GLenum pname, GLuint64 *params); +GLAPI void APIENTRY glVertexAttribDivisor (GLuint index, GLuint divisor); +GLAPI void APIENTRY glVertexAttribP1ui (GLuint index, GLenum type, GLboolean normalized, GLuint value); +GLAPI void APIENTRY glVertexAttribP1uiv (GLuint index, GLenum type, GLboolean normalized, const GLuint *value); +GLAPI void APIENTRY glVertexAttribP2ui (GLuint index, GLenum type, GLboolean normalized, GLuint value); +GLAPI void APIENTRY glVertexAttribP2uiv (GLuint index, GLenum type, GLboolean normalized, const GLuint *value); +GLAPI void APIENTRY glVertexAttribP3ui (GLuint index, GLenum type, GLboolean normalized, GLuint value); +GLAPI void APIENTRY glVertexAttribP3uiv (GLuint index, GLenum type, GLboolean normalized, const GLuint *value); +GLAPI void APIENTRY glVertexAttribP4ui (GLuint index, GLenum type, GLboolean normalized, GLuint value); +GLAPI void APIENTRY glVertexAttribP4uiv (GLuint index, GLenum type, GLboolean normalized, const GLuint *value); +#endif +#endif /* GL_VERSION_3_3 */ + +#ifndef GL_VERSION_4_0 +#define GL_VERSION_4_0 1 +#define GL_SAMPLE_SHADING 0x8C36 +#define GL_MIN_SAMPLE_SHADING_VALUE 0x8C37 +#define GL_MIN_PROGRAM_TEXTURE_GATHER_OFFSET 0x8E5E +#define GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET 0x8E5F +#define GL_TEXTURE_CUBE_MAP_ARRAY 0x9009 +#define GL_TEXTURE_BINDING_CUBE_MAP_ARRAY 0x900A +#define GL_PROXY_TEXTURE_CUBE_MAP_ARRAY 0x900B +#define GL_SAMPLER_CUBE_MAP_ARRAY 0x900C +#define GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW 0x900D +#define GL_INT_SAMPLER_CUBE_MAP_ARRAY 0x900E +#define GL_UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY 0x900F +#define GL_DRAW_INDIRECT_BUFFER 0x8F3F +#define GL_DRAW_INDIRECT_BUFFER_BINDING 0x8F43 +#define GL_GEOMETRY_SHADER_INVOCATIONS 0x887F +#define GL_MAX_GEOMETRY_SHADER_INVOCATIONS 0x8E5A +#define GL_MIN_FRAGMENT_INTERPOLATION_OFFSET 0x8E5B +#define GL_MAX_FRAGMENT_INTERPOLATION_OFFSET 0x8E5C +#define GL_FRAGMENT_INTERPOLATION_OFFSET_BITS 0x8E5D +#define GL_MAX_VERTEX_STREAMS 0x8E71 +#define GL_DOUBLE_VEC2 0x8FFC +#define GL_DOUBLE_VEC3 0x8FFD +#define GL_DOUBLE_VEC4 0x8FFE +#define GL_DOUBLE_MAT2 0x8F46 +#define GL_DOUBLE_MAT3 0x8F47 +#define GL_DOUBLE_MAT4 0x8F48 +#define GL_DOUBLE_MAT2x3 0x8F49 +#define GL_DOUBLE_MAT2x4 0x8F4A +#define GL_DOUBLE_MAT3x2 0x8F4B +#define GL_DOUBLE_MAT3x4 0x8F4C +#define GL_DOUBLE_MAT4x2 0x8F4D +#define GL_DOUBLE_MAT4x3 0x8F4E +#define GL_ACTIVE_SUBROUTINES 0x8DE5 +#define GL_ACTIVE_SUBROUTINE_UNIFORMS 0x8DE6 +#define GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS 0x8E47 +#define GL_ACTIVE_SUBROUTINE_MAX_LENGTH 0x8E48 +#define GL_ACTIVE_SUBROUTINE_UNIFORM_MAX_LENGTH 0x8E49 +#define GL_MAX_SUBROUTINES 0x8DE7 +#define GL_MAX_SUBROUTINE_UNIFORM_LOCATIONS 0x8DE8 +#define GL_NUM_COMPATIBLE_SUBROUTINES 0x8E4A +#define GL_COMPATIBLE_SUBROUTINES 0x8E4B +#define GL_PATCHES 0x000E +#define GL_PATCH_VERTICES 0x8E72 +#define GL_PATCH_DEFAULT_INNER_LEVEL 0x8E73 +#define GL_PATCH_DEFAULT_OUTER_LEVEL 0x8E74 +#define GL_TESS_CONTROL_OUTPUT_VERTICES 0x8E75 +#define GL_TESS_GEN_MODE 0x8E76 +#define GL_TESS_GEN_SPACING 0x8E77 +#define GL_TESS_GEN_VERTEX_ORDER 0x8E78 +#define GL_TESS_GEN_POINT_MODE 0x8E79 +#define GL_ISOLINES 0x8E7A +#define GL_FRACTIONAL_ODD 0x8E7B +#define GL_FRACTIONAL_EVEN 0x8E7C +#define GL_MAX_PATCH_VERTICES 0x8E7D +#define GL_MAX_TESS_GEN_LEVEL 0x8E7E +#define GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS 0x8E7F +#define GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS 0x8E80 +#define GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS 0x8E81 +#define GL_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS 0x8E82 +#define GL_MAX_TESS_CONTROL_OUTPUT_COMPONENTS 0x8E83 +#define GL_MAX_TESS_PATCH_COMPONENTS 0x8E84 +#define GL_MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS 0x8E85 +#define GL_MAX_TESS_EVALUATION_OUTPUT_COMPONENTS 0x8E86 +#define GL_MAX_TESS_CONTROL_UNIFORM_BLOCKS 0x8E89 +#define GL_MAX_TESS_EVALUATION_UNIFORM_BLOCKS 0x8E8A +#define GL_MAX_TESS_CONTROL_INPUT_COMPONENTS 0x886C +#define GL_MAX_TESS_EVALUATION_INPUT_COMPONENTS 0x886D +#define GL_MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS 0x8E1E +#define GL_MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS 0x8E1F +#define GL_UNIFORM_BLOCK_REFERENCED_BY_TESS_CONTROL_SHADER 0x84F0 +#define GL_UNIFORM_BLOCK_REFERENCED_BY_TESS_EVALUATION_SHADER 0x84F1 +#define GL_TESS_EVALUATION_SHADER 0x8E87 +#define GL_TESS_CONTROL_SHADER 0x8E88 +#define GL_TRANSFORM_FEEDBACK 0x8E22 +#define GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED 0x8E23 +#define GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE 0x8E24 +#define GL_TRANSFORM_FEEDBACK_BINDING 0x8E25 +#define GL_MAX_TRANSFORM_FEEDBACK_BUFFERS 0x8E70 +typedef void (APIENTRYP PFNGLMINSAMPLESHADINGPROC) (GLfloat value); +typedef void (APIENTRYP PFNGLBLENDEQUATIONIPROC) (GLuint buf, GLenum mode); +typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEIPROC) (GLuint buf, GLenum modeRGB, GLenum modeAlpha); +typedef void (APIENTRYP PFNGLBLENDFUNCIPROC) (GLuint buf, GLenum src, GLenum dst); +typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEIPROC) (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha); +typedef void (APIENTRYP PFNGLDRAWARRAYSINDIRECTPROC) (GLenum mode, const void *indirect); +typedef void (APIENTRYP PFNGLDRAWELEMENTSINDIRECTPROC) (GLenum mode, GLenum type, const void *indirect); +typedef void (APIENTRYP PFNGLUNIFORM1DPROC) (GLint location, GLdouble x); +typedef void (APIENTRYP PFNGLUNIFORM2DPROC) (GLint location, GLdouble x, GLdouble y); +typedef void (APIENTRYP PFNGLUNIFORM3DPROC) (GLint location, GLdouble x, GLdouble y, GLdouble z); +typedef void (APIENTRYP PFNGLUNIFORM4DPROC) (GLint location, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +typedef void (APIENTRYP PFNGLUNIFORM1DVPROC) (GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORM2DVPROC) (GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORM3DVPROC) (GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORM4DVPROC) (GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX2DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX3DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX4DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X3DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X4DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X2DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X4DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X2DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X3DVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLGETUNIFORMDVPROC) (GLuint program, GLint location, GLdouble *params); +typedef GLint (APIENTRYP PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC) (GLuint program, GLenum shadertype, const GLchar *name); +typedef GLuint (APIENTRYP PFNGLGETSUBROUTINEINDEXPROC) (GLuint program, GLenum shadertype, const GLchar *name); +typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC) (GLuint program, GLenum shadertype, GLuint index, GLenum pname, GLint *values); +typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC) (GLuint program, GLenum shadertype, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name); +typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINENAMEPROC) (GLuint program, GLenum shadertype, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name); +typedef void (APIENTRYP PFNGLUNIFORMSUBROUTINESUIVPROC) (GLenum shadertype, GLsizei count, const GLuint *indices); +typedef void (APIENTRYP PFNGLGETUNIFORMSUBROUTINEUIVPROC) (GLenum shadertype, GLint location, GLuint *params); +typedef void (APIENTRYP PFNGLGETPROGRAMSTAGEIVPROC) (GLuint program, GLenum shadertype, GLenum pname, GLint *values); +typedef void (APIENTRYP PFNGLPATCHPARAMETERIPROC) (GLenum pname, GLint value); +typedef void (APIENTRYP PFNGLPATCHPARAMETERFVPROC) (GLenum pname, const GLfloat *values); +typedef void (APIENTRYP PFNGLBINDTRANSFORMFEEDBACKPROC) (GLenum target, GLuint id); +typedef void (APIENTRYP PFNGLDELETETRANSFORMFEEDBACKSPROC) (GLsizei n, const GLuint *ids); +typedef void (APIENTRYP PFNGLGENTRANSFORMFEEDBACKSPROC) (GLsizei n, GLuint *ids); +typedef GLboolean (APIENTRYP PFNGLISTRANSFORMFEEDBACKPROC) (GLuint id); +typedef void (APIENTRYP PFNGLPAUSETRANSFORMFEEDBACKPROC) (void); +typedef void (APIENTRYP PFNGLRESUMETRANSFORMFEEDBACKPROC) (void); +typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKPROC) (GLenum mode, GLuint id); +typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC) (GLenum mode, GLuint id, GLuint stream); +typedef void (APIENTRYP PFNGLBEGINQUERYINDEXEDPROC) (GLenum target, GLuint index, GLuint id); +typedef void (APIENTRYP PFNGLENDQUERYINDEXEDPROC) (GLenum target, GLuint index); +typedef void (APIENTRYP PFNGLGETQUERYINDEXEDIVPROC) (GLenum target, GLuint index, GLenum pname, GLint *params); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMinSampleShading (GLfloat value); +GLAPI void APIENTRY glBlendEquationi (GLuint buf, GLenum mode); +GLAPI void APIENTRY glBlendEquationSeparatei (GLuint buf, GLenum modeRGB, GLenum modeAlpha); +GLAPI void APIENTRY glBlendFunci (GLuint buf, GLenum src, GLenum dst); +GLAPI void APIENTRY glBlendFuncSeparatei (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha); +GLAPI void APIENTRY glDrawArraysIndirect (GLenum mode, const void *indirect); +GLAPI void APIENTRY glDrawElementsIndirect (GLenum mode, GLenum type, const void *indirect); +GLAPI void APIENTRY glUniform1d (GLint location, GLdouble x); +GLAPI void APIENTRY glUniform2d (GLint location, GLdouble x, GLdouble y); +GLAPI void APIENTRY glUniform3d (GLint location, GLdouble x, GLdouble y, GLdouble z); +GLAPI void APIENTRY glUniform4d (GLint location, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +GLAPI void APIENTRY glUniform1dv (GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glUniform2dv (GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glUniform3dv (GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glUniform4dv (GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix2dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix3dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix4dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix2x3dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix2x4dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix3x2dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix3x4dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix4x2dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glUniformMatrix4x3dv (GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glGetUniformdv (GLuint program, GLint location, GLdouble *params); +GLAPI GLint APIENTRY glGetSubroutineUniformLocation (GLuint program, GLenum shadertype, const GLchar *name); +GLAPI GLuint APIENTRY glGetSubroutineIndex (GLuint program, GLenum shadertype, const GLchar *name); +GLAPI void APIENTRY glGetActiveSubroutineUniformiv (GLuint program, GLenum shadertype, GLuint index, GLenum pname, GLint *values); +GLAPI void APIENTRY glGetActiveSubroutineUniformName (GLuint program, GLenum shadertype, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name); +GLAPI void APIENTRY glGetActiveSubroutineName (GLuint program, GLenum shadertype, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name); +GLAPI void APIENTRY glUniformSubroutinesuiv (GLenum shadertype, GLsizei count, const GLuint *indices); +GLAPI void APIENTRY glGetUniformSubroutineuiv (GLenum shadertype, GLint location, GLuint *params); +GLAPI void APIENTRY glGetProgramStageiv (GLuint program, GLenum shadertype, GLenum pname, GLint *values); +GLAPI void APIENTRY glPatchParameteri (GLenum pname, GLint value); +GLAPI void APIENTRY glPatchParameterfv (GLenum pname, const GLfloat *values); +GLAPI void APIENTRY glBindTransformFeedback (GLenum target, GLuint id); +GLAPI void APIENTRY glDeleteTransformFeedbacks (GLsizei n, const GLuint *ids); +GLAPI void APIENTRY glGenTransformFeedbacks (GLsizei n, GLuint *ids); +GLAPI GLboolean APIENTRY glIsTransformFeedback (GLuint id); +GLAPI void APIENTRY glPauseTransformFeedback (void); +GLAPI void APIENTRY glResumeTransformFeedback (void); +GLAPI void APIENTRY glDrawTransformFeedback (GLenum mode, GLuint id); +GLAPI void APIENTRY glDrawTransformFeedbackStream (GLenum mode, GLuint id, GLuint stream); +GLAPI void APIENTRY glBeginQueryIndexed (GLenum target, GLuint index, GLuint id); +GLAPI void APIENTRY glEndQueryIndexed (GLenum target, GLuint index); +GLAPI void APIENTRY glGetQueryIndexediv (GLenum target, GLuint index, GLenum pname, GLint *params); +#endif +#endif /* GL_VERSION_4_0 */ + +#ifndef GL_VERSION_4_1 +#define GL_VERSION_4_1 1 +#define GL_FIXED 0x140C +#define GL_IMPLEMENTATION_COLOR_READ_TYPE 0x8B9A +#define GL_IMPLEMENTATION_COLOR_READ_FORMAT 0x8B9B +#define GL_LOW_FLOAT 0x8DF0 +#define GL_MEDIUM_FLOAT 0x8DF1 +#define GL_HIGH_FLOAT 0x8DF2 +#define GL_LOW_INT 0x8DF3 +#define GL_MEDIUM_INT 0x8DF4 +#define GL_HIGH_INT 0x8DF5 +#define GL_SHADER_COMPILER 0x8DFA +#define GL_SHADER_BINARY_FORMATS 0x8DF8 +#define GL_NUM_SHADER_BINARY_FORMATS 0x8DF9 +#define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB +#define GL_MAX_VARYING_VECTORS 0x8DFC +#define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD +#define GL_RGB565 0x8D62 +#define GL_PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257 +#define GL_PROGRAM_BINARY_LENGTH 0x8741 +#define GL_NUM_PROGRAM_BINARY_FORMATS 0x87FE +#define GL_PROGRAM_BINARY_FORMATS 0x87FF +#define GL_VERTEX_SHADER_BIT 0x00000001 +#define GL_FRAGMENT_SHADER_BIT 0x00000002 +#define GL_GEOMETRY_SHADER_BIT 0x00000004 +#define GL_TESS_CONTROL_SHADER_BIT 0x00000008 +#define GL_TESS_EVALUATION_SHADER_BIT 0x00000010 +#define GL_ALL_SHADER_BITS 0xFFFFFFFF +#define GL_PROGRAM_SEPARABLE 0x8258 +#define GL_ACTIVE_PROGRAM 0x8259 +#define GL_PROGRAM_PIPELINE_BINDING 0x825A +#define GL_MAX_VIEWPORTS 0x825B +#define GL_VIEWPORT_SUBPIXEL_BITS 0x825C +#define GL_VIEWPORT_BOUNDS_RANGE 0x825D +#define GL_LAYER_PROVOKING_VERTEX 0x825E +#define GL_VIEWPORT_INDEX_PROVOKING_VERTEX 0x825F +#define GL_UNDEFINED_VERTEX 0x8260 +typedef void (APIENTRYP PFNGLRELEASESHADERCOMPILERPROC) (void); +typedef void (APIENTRYP PFNGLSHADERBINARYPROC) (GLsizei count, const GLuint *shaders, GLenum binaryformat, const void *binary, GLsizei length); +typedef void (APIENTRYP PFNGLGETSHADERPRECISIONFORMATPROC) (GLenum shadertype, GLenum precisiontype, GLint *range, GLint *precision); +typedef void (APIENTRYP PFNGLDEPTHRANGEFPROC) (GLfloat n, GLfloat f); +typedef void (APIENTRYP PFNGLCLEARDEPTHFPROC) (GLfloat d); +typedef void (APIENTRYP PFNGLGETPROGRAMBINARYPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, void *binary); +typedef void (APIENTRYP PFNGLPROGRAMBINARYPROC) (GLuint program, GLenum binaryFormat, const void *binary, GLsizei length); +typedef void (APIENTRYP PFNGLPROGRAMPARAMETERIPROC) (GLuint program, GLenum pname, GLint value); +typedef void (APIENTRYP PFNGLUSEPROGRAMSTAGESPROC) (GLuint pipeline, GLbitfield stages, GLuint program); +typedef void (APIENTRYP PFNGLACTIVESHADERPROGRAMPROC) (GLuint pipeline, GLuint program); +typedef GLuint (APIENTRYP PFNGLCREATESHADERPROGRAMVPROC) (GLenum type, GLsizei count, const GLchar *const*strings); +typedef void (APIENTRYP PFNGLBINDPROGRAMPIPELINEPROC) (GLuint pipeline); +typedef void (APIENTRYP PFNGLDELETEPROGRAMPIPELINESPROC) (GLsizei n, const GLuint *pipelines); +typedef void (APIENTRYP PFNGLGENPROGRAMPIPELINESPROC) (GLsizei n, GLuint *pipelines); +typedef GLboolean (APIENTRYP PFNGLISPROGRAMPIPELINEPROC) (GLuint pipeline); +typedef void (APIENTRYP PFNGLGETPROGRAMPIPELINEIVPROC) (GLuint pipeline, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1IPROC) (GLuint program, GLint location, GLint v0); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1IVPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1FPROC) (GLuint program, GLint location, GLfloat v0); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1FVPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1DPROC) (GLuint program, GLint location, GLdouble v0); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1DVPROC) (GLuint program, GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UIPROC) (GLuint program, GLint location, GLuint v0); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UIVPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2IPROC) (GLuint program, GLint location, GLint v0, GLint v1); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2IVPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2FPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2FVPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2DPROC) (GLuint program, GLint location, GLdouble v0, GLdouble v1); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2DVPROC) (GLuint program, GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UIPROC) (GLuint program, GLint location, GLuint v0, GLuint v1); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UIVPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3IPROC) (GLuint program, GLint location, GLint v0, GLint v1, GLint v2); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3IVPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3FPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3FVPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3DPROC) (GLuint program, GLint location, GLdouble v0, GLdouble v1, GLdouble v2); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3DVPROC) (GLuint program, GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UIPROC) (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UIVPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4IPROC) (GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4IVPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4FPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4FVPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4DPROC) (GLuint program, GLint location, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4DVPROC) (GLuint program, GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UIPROC) (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UIVPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLVALIDATEPROGRAMPIPELINEPROC) (GLuint pipeline); +typedef void (APIENTRYP PFNGLGETPROGRAMPIPELINEINFOLOGPROC) (GLuint pipeline, GLsizei bufSize, GLsizei *length, GLchar *infoLog); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL1DPROC) (GLuint index, GLdouble x); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL2DPROC) (GLuint index, GLdouble x, GLdouble y); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL3DPROC) (GLuint index, GLdouble x, GLdouble y, GLdouble z); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL4DPROC) (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL1DVPROC) (GLuint index, const GLdouble *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL2DVPROC) (GLuint index, const GLdouble *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL3DVPROC) (GLuint index, const GLdouble *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL4DVPROC) (GLuint index, const GLdouble *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBLPOINTERPROC) (GLuint index, GLint size, GLenum type, GLsizei stride, const void *pointer); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBLDVPROC) (GLuint index, GLenum pname, GLdouble *params); +typedef void (APIENTRYP PFNGLVIEWPORTARRAYVPROC) (GLuint first, GLsizei count, const GLfloat *v); +typedef void (APIENTRYP PFNGLVIEWPORTINDEXEDFPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h); +typedef void (APIENTRYP PFNGLVIEWPORTINDEXEDFVPROC) (GLuint index, const GLfloat *v); +typedef void (APIENTRYP PFNGLSCISSORARRAYVPROC) (GLuint first, GLsizei count, const GLint *v); +typedef void (APIENTRYP PFNGLSCISSORINDEXEDPROC) (GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLSCISSORINDEXEDVPROC) (GLuint index, const GLint *v); +typedef void (APIENTRYP PFNGLDEPTHRANGEARRAYVPROC) (GLuint first, GLsizei count, const GLdouble *v); +typedef void (APIENTRYP PFNGLDEPTHRANGEINDEXEDPROC) (GLuint index, GLdouble n, GLdouble f); +typedef void (APIENTRYP PFNGLGETFLOATI_VPROC) (GLenum target, GLuint index, GLfloat *data); +typedef void (APIENTRYP PFNGLGETDOUBLEI_VPROC) (GLenum target, GLuint index, GLdouble *data); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glReleaseShaderCompiler (void); +GLAPI void APIENTRY glShaderBinary (GLsizei count, const GLuint *shaders, GLenum binaryformat, const void *binary, GLsizei length); +GLAPI void APIENTRY glGetShaderPrecisionFormat (GLenum shadertype, GLenum precisiontype, GLint *range, GLint *precision); +GLAPI void APIENTRY glDepthRangef (GLfloat n, GLfloat f); +GLAPI void APIENTRY glClearDepthf (GLfloat d); +GLAPI void APIENTRY glGetProgramBinary (GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, void *binary); +GLAPI void APIENTRY glProgramBinary (GLuint program, GLenum binaryFormat, const void *binary, GLsizei length); +GLAPI void APIENTRY glProgramParameteri (GLuint program, GLenum pname, GLint value); +GLAPI void APIENTRY glUseProgramStages (GLuint pipeline, GLbitfield stages, GLuint program); +GLAPI void APIENTRY glActiveShaderProgram (GLuint pipeline, GLuint program); +GLAPI GLuint APIENTRY glCreateShaderProgramv (GLenum type, GLsizei count, const GLchar *const*strings); +GLAPI void APIENTRY glBindProgramPipeline (GLuint pipeline); +GLAPI void APIENTRY glDeleteProgramPipelines (GLsizei n, const GLuint *pipelines); +GLAPI void APIENTRY glGenProgramPipelines (GLsizei n, GLuint *pipelines); +GLAPI GLboolean APIENTRY glIsProgramPipeline (GLuint pipeline); +GLAPI void APIENTRY glGetProgramPipelineiv (GLuint pipeline, GLenum pname, GLint *params); +GLAPI void APIENTRY glProgramUniform1i (GLuint program, GLint location, GLint v0); +GLAPI void APIENTRY glProgramUniform1iv (GLuint program, GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glProgramUniform1f (GLuint program, GLint location, GLfloat v0); +GLAPI void APIENTRY glProgramUniform1fv (GLuint program, GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glProgramUniform1d (GLuint program, GLint location, GLdouble v0); +GLAPI void APIENTRY glProgramUniform1dv (GLuint program, GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glProgramUniform1ui (GLuint program, GLint location, GLuint v0); +GLAPI void APIENTRY glProgramUniform1uiv (GLuint program, GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glProgramUniform2i (GLuint program, GLint location, GLint v0, GLint v1); +GLAPI void APIENTRY glProgramUniform2iv (GLuint program, GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glProgramUniform2f (GLuint program, GLint location, GLfloat v0, GLfloat v1); +GLAPI void APIENTRY glProgramUniform2fv (GLuint program, GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glProgramUniform2d (GLuint program, GLint location, GLdouble v0, GLdouble v1); +GLAPI void APIENTRY glProgramUniform2dv (GLuint program, GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glProgramUniform2ui (GLuint program, GLint location, GLuint v0, GLuint v1); +GLAPI void APIENTRY glProgramUniform2uiv (GLuint program, GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glProgramUniform3i (GLuint program, GLint location, GLint v0, GLint v1, GLint v2); +GLAPI void APIENTRY glProgramUniform3iv (GLuint program, GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glProgramUniform3f (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2); +GLAPI void APIENTRY glProgramUniform3fv (GLuint program, GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glProgramUniform3d (GLuint program, GLint location, GLdouble v0, GLdouble v1, GLdouble v2); +GLAPI void APIENTRY glProgramUniform3dv (GLuint program, GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glProgramUniform3ui (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2); +GLAPI void APIENTRY glProgramUniform3uiv (GLuint program, GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glProgramUniform4i (GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3); +GLAPI void APIENTRY glProgramUniform4iv (GLuint program, GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glProgramUniform4f (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); +GLAPI void APIENTRY glProgramUniform4fv (GLuint program, GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glProgramUniform4d (GLuint program, GLint location, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3); +GLAPI void APIENTRY glProgramUniform4dv (GLuint program, GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glProgramUniform4ui (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3); +GLAPI void APIENTRY glProgramUniform4uiv (GLuint program, GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glProgramUniformMatrix2fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix3fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix4fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix2dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix3dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix4dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix2x3fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix3x2fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix2x4fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix4x2fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix3x4fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix4x3fv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix2x3dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix3x2dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix2x4dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix4x2dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix3x4dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix4x3dv (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glValidateProgramPipeline (GLuint pipeline); +GLAPI void APIENTRY glGetProgramPipelineInfoLog (GLuint pipeline, GLsizei bufSize, GLsizei *length, GLchar *infoLog); +GLAPI void APIENTRY glVertexAttribL1d (GLuint index, GLdouble x); +GLAPI void APIENTRY glVertexAttribL2d (GLuint index, GLdouble x, GLdouble y); +GLAPI void APIENTRY glVertexAttribL3d (GLuint index, GLdouble x, GLdouble y, GLdouble z); +GLAPI void APIENTRY glVertexAttribL4d (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +GLAPI void APIENTRY glVertexAttribL1dv (GLuint index, const GLdouble *v); +GLAPI void APIENTRY glVertexAttribL2dv (GLuint index, const GLdouble *v); +GLAPI void APIENTRY glVertexAttribL3dv (GLuint index, const GLdouble *v); +GLAPI void APIENTRY glVertexAttribL4dv (GLuint index, const GLdouble *v); +GLAPI void APIENTRY glVertexAttribLPointer (GLuint index, GLint size, GLenum type, GLsizei stride, const void *pointer); +GLAPI void APIENTRY glGetVertexAttribLdv (GLuint index, GLenum pname, GLdouble *params); +GLAPI void APIENTRY glViewportArrayv (GLuint first, GLsizei count, const GLfloat *v); +GLAPI void APIENTRY glViewportIndexedf (GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h); +GLAPI void APIENTRY glViewportIndexedfv (GLuint index, const GLfloat *v); +GLAPI void APIENTRY glScissorArrayv (GLuint first, GLsizei count, const GLint *v); +GLAPI void APIENTRY glScissorIndexed (GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height); +GLAPI void APIENTRY glScissorIndexedv (GLuint index, const GLint *v); +GLAPI void APIENTRY glDepthRangeArrayv (GLuint first, GLsizei count, const GLdouble *v); +GLAPI void APIENTRY glDepthRangeIndexed (GLuint index, GLdouble n, GLdouble f); +GLAPI void APIENTRY glGetFloati_v (GLenum target, GLuint index, GLfloat *data); +GLAPI void APIENTRY glGetDoublei_v (GLenum target, GLuint index, GLdouble *data); +#endif +#endif /* GL_VERSION_4_1 */ + +#ifndef GL_VERSION_4_2 +#define GL_VERSION_4_2 1 +#define GL_COPY_READ_BUFFER_BINDING 0x8F36 +#define GL_COPY_WRITE_BUFFER_BINDING 0x8F37 +#define GL_TRANSFORM_FEEDBACK_ACTIVE 0x8E24 +#define GL_TRANSFORM_FEEDBACK_PAUSED 0x8E23 +#define GL_UNPACK_COMPRESSED_BLOCK_WIDTH 0x9127 +#define GL_UNPACK_COMPRESSED_BLOCK_HEIGHT 0x9128 +#define GL_UNPACK_COMPRESSED_BLOCK_DEPTH 0x9129 +#define GL_UNPACK_COMPRESSED_BLOCK_SIZE 0x912A +#define GL_PACK_COMPRESSED_BLOCK_WIDTH 0x912B +#define GL_PACK_COMPRESSED_BLOCK_HEIGHT 0x912C +#define GL_PACK_COMPRESSED_BLOCK_DEPTH 0x912D +#define GL_PACK_COMPRESSED_BLOCK_SIZE 0x912E +#define GL_NUM_SAMPLE_COUNTS 0x9380 +#define GL_MIN_MAP_BUFFER_ALIGNMENT 0x90BC +#define GL_ATOMIC_COUNTER_BUFFER 0x92C0 +#define GL_ATOMIC_COUNTER_BUFFER_BINDING 0x92C1 +#define GL_ATOMIC_COUNTER_BUFFER_START 0x92C2 +#define GL_ATOMIC_COUNTER_BUFFER_SIZE 0x92C3 +#define GL_ATOMIC_COUNTER_BUFFER_DATA_SIZE 0x92C4 +#define GL_ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTERS 0x92C5 +#define GL_ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTER_INDICES 0x92C6 +#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_VERTEX_SHADER 0x92C7 +#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TESS_CONTROL_SHADER 0x92C8 +#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TESS_EVALUATION_SHADER 0x92C9 +#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_GEOMETRY_SHADER 0x92CA +#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_FRAGMENT_SHADER 0x92CB +#define GL_MAX_VERTEX_ATOMIC_COUNTER_BUFFERS 0x92CC +#define GL_MAX_TESS_CONTROL_ATOMIC_COUNTER_BUFFERS 0x92CD +#define GL_MAX_TESS_EVALUATION_ATOMIC_COUNTER_BUFFERS 0x92CE +#define GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS 0x92CF +#define GL_MAX_FRAGMENT_ATOMIC_COUNTER_BUFFERS 0x92D0 +#define GL_MAX_COMBINED_ATOMIC_COUNTER_BUFFERS 0x92D1 +#define GL_MAX_VERTEX_ATOMIC_COUNTERS 0x92D2 +#define GL_MAX_TESS_CONTROL_ATOMIC_COUNTERS 0x92D3 +#define GL_MAX_TESS_EVALUATION_ATOMIC_COUNTERS 0x92D4 +#define GL_MAX_GEOMETRY_ATOMIC_COUNTERS 0x92D5 +#define GL_MAX_FRAGMENT_ATOMIC_COUNTERS 0x92D6 +#define GL_MAX_COMBINED_ATOMIC_COUNTERS 0x92D7 +#define GL_MAX_ATOMIC_COUNTER_BUFFER_SIZE 0x92D8 +#define GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS 0x92DC +#define GL_ACTIVE_ATOMIC_COUNTER_BUFFERS 0x92D9 +#define GL_UNIFORM_ATOMIC_COUNTER_BUFFER_INDEX 0x92DA +#define GL_UNSIGNED_INT_ATOMIC_COUNTER 0x92DB +#define GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT 0x00000001 +#define GL_ELEMENT_ARRAY_BARRIER_BIT 0x00000002 +#define GL_UNIFORM_BARRIER_BIT 0x00000004 +#define GL_TEXTURE_FETCH_BARRIER_BIT 0x00000008 +#define GL_SHADER_IMAGE_ACCESS_BARRIER_BIT 0x00000020 +#define GL_COMMAND_BARRIER_BIT 0x00000040 +#define GL_PIXEL_BUFFER_BARRIER_BIT 0x00000080 +#define GL_TEXTURE_UPDATE_BARRIER_BIT 0x00000100 +#define GL_BUFFER_UPDATE_BARRIER_BIT 0x00000200 +#define GL_FRAMEBUFFER_BARRIER_BIT 0x00000400 +#define GL_TRANSFORM_FEEDBACK_BARRIER_BIT 0x00000800 +#define GL_ATOMIC_COUNTER_BARRIER_BIT 0x00001000 +#define GL_ALL_BARRIER_BITS 0xFFFFFFFF +#define GL_MAX_IMAGE_UNITS 0x8F38 +#define GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS 0x8F39 +#define GL_IMAGE_BINDING_NAME 0x8F3A +#define GL_IMAGE_BINDING_LEVEL 0x8F3B +#define GL_IMAGE_BINDING_LAYERED 0x8F3C +#define GL_IMAGE_BINDING_LAYER 0x8F3D +#define GL_IMAGE_BINDING_ACCESS 0x8F3E +#define GL_IMAGE_1D 0x904C +#define GL_IMAGE_2D 0x904D +#define GL_IMAGE_3D 0x904E +#define GL_IMAGE_2D_RECT 0x904F +#define GL_IMAGE_CUBE 0x9050 +#define GL_IMAGE_BUFFER 0x9051 +#define GL_IMAGE_1D_ARRAY 0x9052 +#define GL_IMAGE_2D_ARRAY 0x9053 +#define GL_IMAGE_CUBE_MAP_ARRAY 0x9054 +#define GL_IMAGE_2D_MULTISAMPLE 0x9055 +#define GL_IMAGE_2D_MULTISAMPLE_ARRAY 0x9056 +#define GL_INT_IMAGE_1D 0x9057 +#define GL_INT_IMAGE_2D 0x9058 +#define GL_INT_IMAGE_3D 0x9059 +#define GL_INT_IMAGE_2D_RECT 0x905A +#define GL_INT_IMAGE_CUBE 0x905B +#define GL_INT_IMAGE_BUFFER 0x905C +#define GL_INT_IMAGE_1D_ARRAY 0x905D +#define GL_INT_IMAGE_2D_ARRAY 0x905E +#define GL_INT_IMAGE_CUBE_MAP_ARRAY 0x905F +#define GL_INT_IMAGE_2D_MULTISAMPLE 0x9060 +#define GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY 0x9061 +#define GL_UNSIGNED_INT_IMAGE_1D 0x9062 +#define GL_UNSIGNED_INT_IMAGE_2D 0x9063 +#define GL_UNSIGNED_INT_IMAGE_3D 0x9064 +#define GL_UNSIGNED_INT_IMAGE_2D_RECT 0x9065 +#define GL_UNSIGNED_INT_IMAGE_CUBE 0x9066 +#define GL_UNSIGNED_INT_IMAGE_BUFFER 0x9067 +#define GL_UNSIGNED_INT_IMAGE_1D_ARRAY 0x9068 +#define GL_UNSIGNED_INT_IMAGE_2D_ARRAY 0x9069 +#define GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY 0x906A +#define GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE 0x906B +#define GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY 0x906C +#define GL_MAX_IMAGE_SAMPLES 0x906D +#define GL_IMAGE_BINDING_FORMAT 0x906E +#define GL_IMAGE_FORMAT_COMPATIBILITY_TYPE 0x90C7 +#define GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE 0x90C8 +#define GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS 0x90C9 +#define GL_MAX_VERTEX_IMAGE_UNIFORMS 0x90CA +#define GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS 0x90CB +#define GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS 0x90CC +#define GL_MAX_GEOMETRY_IMAGE_UNIFORMS 0x90CD +#define GL_MAX_FRAGMENT_IMAGE_UNIFORMS 0x90CE +#define GL_MAX_COMBINED_IMAGE_UNIFORMS 0x90CF +#define GL_COMPRESSED_RGBA_BPTC_UNORM 0x8E8C +#define GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM 0x8E8D +#define GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT 0x8E8E +#define GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT 0x8E8F +#define GL_TEXTURE_IMMUTABLE_FORMAT 0x912F +typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC) (GLenum mode, GLint first, GLsizei count, GLsizei instancecount, GLuint baseinstance); +typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLuint baseinstance); +typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex, GLuint baseinstance); +typedef void (APIENTRYP PFNGLGETINTERNALFORMATIVPROC) (GLenum target, GLenum internalformat, GLenum pname, GLsizei count, GLint *params); +typedef void (APIENTRYP PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC) (GLuint program, GLuint bufferIndex, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLBINDIMAGETEXTUREPROC) (GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format); +typedef void (APIENTRYP PFNGLMEMORYBARRIERPROC) (GLbitfield barriers); +typedef void (APIENTRYP PFNGLTEXSTORAGE1DPROC) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width); +typedef void (APIENTRYP PFNGLTEXSTORAGE2DPROC) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLTEXSTORAGE3DPROC) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); +typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC) (GLenum mode, GLuint id, GLsizei instancecount); +typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC) (GLenum mode, GLuint id, GLuint stream, GLsizei instancecount); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawArraysInstancedBaseInstance (GLenum mode, GLint first, GLsizei count, GLsizei instancecount, GLuint baseinstance); +GLAPI void APIENTRY glDrawElementsInstancedBaseInstance (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLuint baseinstance); +GLAPI void APIENTRY glDrawElementsInstancedBaseVertexBaseInstance (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex, GLuint baseinstance); +GLAPI void APIENTRY glGetInternalformativ (GLenum target, GLenum internalformat, GLenum pname, GLsizei count, GLint *params); +GLAPI void APIENTRY glGetActiveAtomicCounterBufferiv (GLuint program, GLuint bufferIndex, GLenum pname, GLint *params); +GLAPI void APIENTRY glBindImageTexture (GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format); +GLAPI void APIENTRY glMemoryBarrier (GLbitfield barriers); +GLAPI void APIENTRY glTexStorage1D (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width); +GLAPI void APIENTRY glTexStorage2D (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glTexStorage3D (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); +GLAPI void APIENTRY glDrawTransformFeedbackInstanced (GLenum mode, GLuint id, GLsizei instancecount); +GLAPI void APIENTRY glDrawTransformFeedbackStreamInstanced (GLenum mode, GLuint id, GLuint stream, GLsizei instancecount); +#endif +#endif /* GL_VERSION_4_2 */ + +#ifndef GL_VERSION_4_3 +#define GL_VERSION_4_3 1 +typedef void (APIENTRY *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); +#define GL_NUM_SHADING_LANGUAGE_VERSIONS 0x82E9 +#define GL_VERTEX_ATTRIB_ARRAY_LONG 0x874E +#define GL_COMPRESSED_RGB8_ETC2 0x9274 +#define GL_COMPRESSED_SRGB8_ETC2 0x9275 +#define GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9276 +#define GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 0x9277 +#define GL_COMPRESSED_RGBA8_ETC2_EAC 0x9278 +#define GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC 0x9279 +#define GL_COMPRESSED_R11_EAC 0x9270 +#define GL_COMPRESSED_SIGNED_R11_EAC 0x9271 +#define GL_COMPRESSED_RG11_EAC 0x9272 +#define GL_COMPRESSED_SIGNED_RG11_EAC 0x9273 +#define GL_PRIMITIVE_RESTART_FIXED_INDEX 0x8D69 +#define GL_ANY_SAMPLES_PASSED_CONSERVATIVE 0x8D6A +#define GL_MAX_ELEMENT_INDEX 0x8D6B +#define GL_COMPUTE_SHADER 0x91B9 +#define GL_MAX_COMPUTE_UNIFORM_BLOCKS 0x91BB +#define GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS 0x91BC +#define GL_MAX_COMPUTE_IMAGE_UNIFORMS 0x91BD +#define GL_MAX_COMPUTE_SHARED_MEMORY_SIZE 0x8262 +#define GL_MAX_COMPUTE_UNIFORM_COMPONENTS 0x8263 +#define GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS 0x8264 +#define GL_MAX_COMPUTE_ATOMIC_COUNTERS 0x8265 +#define GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS 0x8266 +#define GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS 0x90EB +#define GL_MAX_COMPUTE_WORK_GROUP_COUNT 0x91BE +#define GL_MAX_COMPUTE_WORK_GROUP_SIZE 0x91BF +#define GL_COMPUTE_WORK_GROUP_SIZE 0x8267 +#define GL_UNIFORM_BLOCK_REFERENCED_BY_COMPUTE_SHADER 0x90EC +#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_COMPUTE_SHADER 0x90ED +#define GL_DISPATCH_INDIRECT_BUFFER 0x90EE +#define GL_DISPATCH_INDIRECT_BUFFER_BINDING 0x90EF +#define GL_COMPUTE_SHADER_BIT 0x00000020 +#define GL_DEBUG_OUTPUT_SYNCHRONOUS 0x8242 +#define GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH 0x8243 +#define GL_DEBUG_CALLBACK_FUNCTION 0x8244 +#define GL_DEBUG_CALLBACK_USER_PARAM 0x8245 +#define GL_DEBUG_SOURCE_API 0x8246 +#define GL_DEBUG_SOURCE_WINDOW_SYSTEM 0x8247 +#define GL_DEBUG_SOURCE_SHADER_COMPILER 0x8248 +#define GL_DEBUG_SOURCE_THIRD_PARTY 0x8249 +#define GL_DEBUG_SOURCE_APPLICATION 0x824A +#define GL_DEBUG_SOURCE_OTHER 0x824B +#define GL_DEBUG_TYPE_ERROR 0x824C +#define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR 0x824D +#define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR 0x824E +#define GL_DEBUG_TYPE_PORTABILITY 0x824F +#define GL_DEBUG_TYPE_PERFORMANCE 0x8250 +#define GL_DEBUG_TYPE_OTHER 0x8251 +#define GL_MAX_DEBUG_MESSAGE_LENGTH 0x9143 +#define GL_MAX_DEBUG_LOGGED_MESSAGES 0x9144 +#define GL_DEBUG_LOGGED_MESSAGES 0x9145 +#define GL_DEBUG_SEVERITY_HIGH 0x9146 +#define GL_DEBUG_SEVERITY_MEDIUM 0x9147 +#define GL_DEBUG_SEVERITY_LOW 0x9148 +#define GL_DEBUG_TYPE_MARKER 0x8268 +#define GL_DEBUG_TYPE_PUSH_GROUP 0x8269 +#define GL_DEBUG_TYPE_POP_GROUP 0x826A +#define GL_DEBUG_SEVERITY_NOTIFICATION 0x826B +#define GL_MAX_DEBUG_GROUP_STACK_DEPTH 0x826C +#define GL_DEBUG_GROUP_STACK_DEPTH 0x826D +#define GL_BUFFER 0x82E0 +#define GL_SHADER 0x82E1 +#define GL_PROGRAM 0x82E2 +#define GL_QUERY 0x82E3 +#define GL_PROGRAM_PIPELINE 0x82E4 +#define GL_SAMPLER 0x82E6 +#define GL_MAX_LABEL_LENGTH 0x82E8 +#define GL_DEBUG_OUTPUT 0x92E0 +#define GL_CONTEXT_FLAG_DEBUG_BIT 0x00000002 +#define GL_MAX_UNIFORM_LOCATIONS 0x826E +#define GL_FRAMEBUFFER_DEFAULT_WIDTH 0x9310 +#define GL_FRAMEBUFFER_DEFAULT_HEIGHT 0x9311 +#define GL_FRAMEBUFFER_DEFAULT_LAYERS 0x9312 +#define GL_FRAMEBUFFER_DEFAULT_SAMPLES 0x9313 +#define GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS 0x9314 +#define GL_MAX_FRAMEBUFFER_WIDTH 0x9315 +#define GL_MAX_FRAMEBUFFER_HEIGHT 0x9316 +#define GL_MAX_FRAMEBUFFER_LAYERS 0x9317 +#define GL_MAX_FRAMEBUFFER_SAMPLES 0x9318 +#define GL_INTERNALFORMAT_SUPPORTED 0x826F +#define GL_INTERNALFORMAT_PREFERRED 0x8270 +#define GL_INTERNALFORMAT_RED_SIZE 0x8271 +#define GL_INTERNALFORMAT_GREEN_SIZE 0x8272 +#define GL_INTERNALFORMAT_BLUE_SIZE 0x8273 +#define GL_INTERNALFORMAT_ALPHA_SIZE 0x8274 +#define GL_INTERNALFORMAT_DEPTH_SIZE 0x8275 +#define GL_INTERNALFORMAT_STENCIL_SIZE 0x8276 +#define GL_INTERNALFORMAT_SHARED_SIZE 0x8277 +#define GL_INTERNALFORMAT_RED_TYPE 0x8278 +#define GL_INTERNALFORMAT_GREEN_TYPE 0x8279 +#define GL_INTERNALFORMAT_BLUE_TYPE 0x827A +#define GL_INTERNALFORMAT_ALPHA_TYPE 0x827B +#define GL_INTERNALFORMAT_DEPTH_TYPE 0x827C +#define GL_INTERNALFORMAT_STENCIL_TYPE 0x827D +#define GL_MAX_WIDTH 0x827E +#define GL_MAX_HEIGHT 0x827F +#define GL_MAX_DEPTH 0x8280 +#define GL_MAX_LAYERS 0x8281 +#define GL_MAX_COMBINED_DIMENSIONS 0x8282 +#define GL_COLOR_COMPONENTS 0x8283 +#define GL_DEPTH_COMPONENTS 0x8284 +#define GL_STENCIL_COMPONENTS 0x8285 +#define GL_COLOR_RENDERABLE 0x8286 +#define GL_DEPTH_RENDERABLE 0x8287 +#define GL_STENCIL_RENDERABLE 0x8288 +#define GL_FRAMEBUFFER_RENDERABLE 0x8289 +#define GL_FRAMEBUFFER_RENDERABLE_LAYERED 0x828A +#define GL_FRAMEBUFFER_BLEND 0x828B +#define GL_READ_PIXELS 0x828C +#define GL_READ_PIXELS_FORMAT 0x828D +#define GL_READ_PIXELS_TYPE 0x828E +#define GL_TEXTURE_IMAGE_FORMAT 0x828F +#define GL_TEXTURE_IMAGE_TYPE 0x8290 +#define GL_GET_TEXTURE_IMAGE_FORMAT 0x8291 +#define GL_GET_TEXTURE_IMAGE_TYPE 0x8292 +#define GL_MIPMAP 0x8293 +#define GL_MANUAL_GENERATE_MIPMAP 0x8294 +#define GL_AUTO_GENERATE_MIPMAP 0x8295 +#define GL_COLOR_ENCODING 0x8296 +#define GL_SRGB_READ 0x8297 +#define GL_SRGB_WRITE 0x8298 +#define GL_FILTER 0x829A +#define GL_VERTEX_TEXTURE 0x829B +#define GL_TESS_CONTROL_TEXTURE 0x829C +#define GL_TESS_EVALUATION_TEXTURE 0x829D +#define GL_GEOMETRY_TEXTURE 0x829E +#define GL_FRAGMENT_TEXTURE 0x829F +#define GL_COMPUTE_TEXTURE 0x82A0 +#define GL_TEXTURE_SHADOW 0x82A1 +#define GL_TEXTURE_GATHER 0x82A2 +#define GL_TEXTURE_GATHER_SHADOW 0x82A3 +#define GL_SHADER_IMAGE_LOAD 0x82A4 +#define GL_SHADER_IMAGE_STORE 0x82A5 +#define GL_SHADER_IMAGE_ATOMIC 0x82A6 +#define GL_IMAGE_TEXEL_SIZE 0x82A7 +#define GL_IMAGE_COMPATIBILITY_CLASS 0x82A8 +#define GL_IMAGE_PIXEL_FORMAT 0x82A9 +#define GL_IMAGE_PIXEL_TYPE 0x82AA +#define GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST 0x82AC +#define GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST 0x82AD +#define GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE 0x82AE +#define GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE 0x82AF +#define GL_TEXTURE_COMPRESSED_BLOCK_WIDTH 0x82B1 +#define GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT 0x82B2 +#define GL_TEXTURE_COMPRESSED_BLOCK_SIZE 0x82B3 +#define GL_CLEAR_BUFFER 0x82B4 +#define GL_TEXTURE_VIEW 0x82B5 +#define GL_VIEW_COMPATIBILITY_CLASS 0x82B6 +#define GL_FULL_SUPPORT 0x82B7 +#define GL_CAVEAT_SUPPORT 0x82B8 +#define GL_IMAGE_CLASS_4_X_32 0x82B9 +#define GL_IMAGE_CLASS_2_X_32 0x82BA +#define GL_IMAGE_CLASS_1_X_32 0x82BB +#define GL_IMAGE_CLASS_4_X_16 0x82BC +#define GL_IMAGE_CLASS_2_X_16 0x82BD +#define GL_IMAGE_CLASS_1_X_16 0x82BE +#define GL_IMAGE_CLASS_4_X_8 0x82BF +#define GL_IMAGE_CLASS_2_X_8 0x82C0 +#define GL_IMAGE_CLASS_1_X_8 0x82C1 +#define GL_IMAGE_CLASS_11_11_10 0x82C2 +#define GL_IMAGE_CLASS_10_10_10_2 0x82C3 +#define GL_VIEW_CLASS_128_BITS 0x82C4 +#define GL_VIEW_CLASS_96_BITS 0x82C5 +#define GL_VIEW_CLASS_64_BITS 0x82C6 +#define GL_VIEW_CLASS_48_BITS 0x82C7 +#define GL_VIEW_CLASS_32_BITS 0x82C8 +#define GL_VIEW_CLASS_24_BITS 0x82C9 +#define GL_VIEW_CLASS_16_BITS 0x82CA +#define GL_VIEW_CLASS_8_BITS 0x82CB +#define GL_VIEW_CLASS_S3TC_DXT1_RGB 0x82CC +#define GL_VIEW_CLASS_S3TC_DXT1_RGBA 0x82CD +#define GL_VIEW_CLASS_S3TC_DXT3_RGBA 0x82CE +#define GL_VIEW_CLASS_S3TC_DXT5_RGBA 0x82CF +#define GL_VIEW_CLASS_RGTC1_RED 0x82D0 +#define GL_VIEW_CLASS_RGTC2_RG 0x82D1 +#define GL_VIEW_CLASS_BPTC_UNORM 0x82D2 +#define GL_VIEW_CLASS_BPTC_FLOAT 0x82D3 +#define GL_UNIFORM 0x92E1 +#define GL_UNIFORM_BLOCK 0x92E2 +#define GL_PROGRAM_INPUT 0x92E3 +#define GL_PROGRAM_OUTPUT 0x92E4 +#define GL_BUFFER_VARIABLE 0x92E5 +#define GL_SHADER_STORAGE_BLOCK 0x92E6 +#define GL_VERTEX_SUBROUTINE 0x92E8 +#define GL_TESS_CONTROL_SUBROUTINE 0x92E9 +#define GL_TESS_EVALUATION_SUBROUTINE 0x92EA +#define GL_GEOMETRY_SUBROUTINE 0x92EB +#define GL_FRAGMENT_SUBROUTINE 0x92EC +#define GL_COMPUTE_SUBROUTINE 0x92ED +#define GL_VERTEX_SUBROUTINE_UNIFORM 0x92EE +#define GL_TESS_CONTROL_SUBROUTINE_UNIFORM 0x92EF +#define GL_TESS_EVALUATION_SUBROUTINE_UNIFORM 0x92F0 +#define GL_GEOMETRY_SUBROUTINE_UNIFORM 0x92F1 +#define GL_FRAGMENT_SUBROUTINE_UNIFORM 0x92F2 +#define GL_COMPUTE_SUBROUTINE_UNIFORM 0x92F3 +#define GL_TRANSFORM_FEEDBACK_VARYING 0x92F4 +#define GL_ACTIVE_RESOURCES 0x92F5 +#define GL_MAX_NAME_LENGTH 0x92F6 +#define GL_MAX_NUM_ACTIVE_VARIABLES 0x92F7 +#define GL_MAX_NUM_COMPATIBLE_SUBROUTINES 0x92F8 +#define GL_NAME_LENGTH 0x92F9 +#define GL_TYPE 0x92FA +#define GL_ARRAY_SIZE 0x92FB +#define GL_OFFSET 0x92FC +#define GL_BLOCK_INDEX 0x92FD +#define GL_ARRAY_STRIDE 0x92FE +#define GL_MATRIX_STRIDE 0x92FF +#define GL_IS_ROW_MAJOR 0x9300 +#define GL_ATOMIC_COUNTER_BUFFER_INDEX 0x9301 +#define GL_BUFFER_BINDING 0x9302 +#define GL_BUFFER_DATA_SIZE 0x9303 +#define GL_NUM_ACTIVE_VARIABLES 0x9304 +#define GL_ACTIVE_VARIABLES 0x9305 +#define GL_REFERENCED_BY_VERTEX_SHADER 0x9306 +#define GL_REFERENCED_BY_TESS_CONTROL_SHADER 0x9307 +#define GL_REFERENCED_BY_TESS_EVALUATION_SHADER 0x9308 +#define GL_REFERENCED_BY_GEOMETRY_SHADER 0x9309 +#define GL_REFERENCED_BY_FRAGMENT_SHADER 0x930A +#define GL_REFERENCED_BY_COMPUTE_SHADER 0x930B +#define GL_TOP_LEVEL_ARRAY_SIZE 0x930C +#define GL_TOP_LEVEL_ARRAY_STRIDE 0x930D +#define GL_LOCATION 0x930E +#define GL_LOCATION_INDEX 0x930F +#define GL_IS_PER_PATCH 0x92E7 +#define GL_SHADER_STORAGE_BUFFER 0x90D2 +#define GL_SHADER_STORAGE_BUFFER_BINDING 0x90D3 +#define GL_SHADER_STORAGE_BUFFER_START 0x90D4 +#define GL_SHADER_STORAGE_BUFFER_SIZE 0x90D5 +#define GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS 0x90D6 +#define GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS 0x90D7 +#define GL_MAX_TESS_CONTROL_SHADER_STORAGE_BLOCKS 0x90D8 +#define GL_MAX_TESS_EVALUATION_SHADER_STORAGE_BLOCKS 0x90D9 +#define GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS 0x90DA +#define GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS 0x90DB +#define GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS 0x90DC +#define GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS 0x90DD +#define GL_MAX_SHADER_STORAGE_BLOCK_SIZE 0x90DE +#define GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT 0x90DF +#define GL_SHADER_STORAGE_BARRIER_BIT 0x00002000 +#define GL_MAX_COMBINED_SHADER_OUTPUT_RESOURCES 0x8F39 +#define GL_DEPTH_STENCIL_TEXTURE_MODE 0x90EA +#define GL_TEXTURE_BUFFER_OFFSET 0x919D +#define GL_TEXTURE_BUFFER_SIZE 0x919E +#define GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT 0x919F +#define GL_TEXTURE_VIEW_MIN_LEVEL 0x82DB +#define GL_TEXTURE_VIEW_NUM_LEVELS 0x82DC +#define GL_TEXTURE_VIEW_MIN_LAYER 0x82DD +#define GL_TEXTURE_VIEW_NUM_LAYERS 0x82DE +#define GL_TEXTURE_IMMUTABLE_LEVELS 0x82DF +#define GL_VERTEX_ATTRIB_BINDING 0x82D4 +#define GL_VERTEX_ATTRIB_RELATIVE_OFFSET 0x82D5 +#define GL_VERTEX_BINDING_DIVISOR 0x82D6 +#define GL_VERTEX_BINDING_OFFSET 0x82D7 +#define GL_VERTEX_BINDING_STRIDE 0x82D8 +#define GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET 0x82D9 +#define GL_MAX_VERTEX_ATTRIB_BINDINGS 0x82DA +#define GL_VERTEX_BINDING_BUFFER 0x8F4F +typedef void (APIENTRYP PFNGLCLEARBUFFERDATAPROC) (GLenum target, GLenum internalformat, GLenum format, GLenum type, const void *data); +typedef void (APIENTRYP PFNGLCLEARBUFFERSUBDATAPROC) (GLenum target, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void *data); +typedef void (APIENTRYP PFNGLDISPATCHCOMPUTEPROC) (GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z); +typedef void (APIENTRYP PFNGLDISPATCHCOMPUTEINDIRECTPROC) (GLintptr indirect); +typedef void (APIENTRYP PFNGLCOPYIMAGESUBDATAPROC) (GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth); +typedef void (APIENTRYP PFNGLFRAMEBUFFERPARAMETERIPROC) (GLenum target, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLGETFRAMEBUFFERPARAMETERIVPROC) (GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETINTERNALFORMATI64VPROC) (GLenum target, GLenum internalformat, GLenum pname, GLsizei count, GLint64 *params); +typedef void (APIENTRYP PFNGLINVALIDATETEXSUBIMAGEPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth); +typedef void (APIENTRYP PFNGLINVALIDATETEXIMAGEPROC) (GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLINVALIDATEBUFFERSUBDATAPROC) (GLuint buffer, GLintptr offset, GLsizeiptr length); +typedef void (APIENTRYP PFNGLINVALIDATEBUFFERDATAPROC) (GLuint buffer); +typedef void (APIENTRYP PFNGLINVALIDATEFRAMEBUFFERPROC) (GLenum target, GLsizei numAttachments, const GLenum *attachments); +typedef void (APIENTRYP PFNGLINVALIDATESUBFRAMEBUFFERPROC) (GLenum target, GLsizei numAttachments, const GLenum *attachments, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTPROC) (GLenum mode, const void *indirect, GLsizei drawcount, GLsizei stride); +typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTPROC) (GLenum mode, GLenum type, const void *indirect, GLsizei drawcount, GLsizei stride); +typedef void (APIENTRYP PFNGLGETPROGRAMINTERFACEIVPROC) (GLuint program, GLenum programInterface, GLenum pname, GLint *params); +typedef GLuint (APIENTRYP PFNGLGETPROGRAMRESOURCEINDEXPROC) (GLuint program, GLenum programInterface, const GLchar *name); +typedef void (APIENTRYP PFNGLGETPROGRAMRESOURCENAMEPROC) (GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name); +typedef void (APIENTRYP PFNGLGETPROGRAMRESOURCEIVPROC) (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei count, GLsizei *length, GLint *params); +typedef GLint (APIENTRYP PFNGLGETPROGRAMRESOURCELOCATIONPROC) (GLuint program, GLenum programInterface, const GLchar *name); +typedef GLint (APIENTRYP PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC) (GLuint program, GLenum programInterface, const GLchar *name); +typedef void (APIENTRYP PFNGLSHADERSTORAGEBLOCKBINDINGPROC) (GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding); +typedef void (APIENTRYP PFNGLTEXBUFFERRANGEPROC) (GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); +typedef void (APIENTRYP PFNGLTEXSTORAGE2DMULTISAMPLEPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations); +typedef void (APIENTRYP PFNGLTEXSTORAGE3DMULTISAMPLEPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); +typedef void (APIENTRYP PFNGLTEXTUREVIEWPROC) (GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers); +typedef void (APIENTRYP PFNGLBINDVERTEXBUFFERPROC) (GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride); +typedef void (APIENTRYP PFNGLVERTEXATTRIBFORMATPROC) (GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXATTRIBIFORMATPROC) (GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXATTRIBLFORMATPROC) (GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXATTRIBBINDINGPROC) (GLuint attribindex, GLuint bindingindex); +typedef void (APIENTRYP PFNGLVERTEXBINDINGDIVISORPROC) (GLuint bindingindex, GLuint divisor); +typedef void (APIENTRYP PFNGLDEBUGMESSAGECONTROLPROC) (GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint *ids, GLboolean enabled); +typedef void (APIENTRYP PFNGLDEBUGMESSAGEINSERTPROC) (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *buf); +typedef void (APIENTRYP PFNGLDEBUGMESSAGECALLBACKPROC) (GLDEBUGPROC callback, const void *userParam); +typedef GLuint (APIENTRYP PFNGLGETDEBUGMESSAGELOGPROC) (GLuint count, GLsizei bufSize, GLenum *sources, GLenum *types, GLuint *ids, GLenum *severities, GLsizei *lengths, GLchar *messageLog); +typedef void (APIENTRYP PFNGLPUSHDEBUGGROUPPROC) (GLenum source, GLuint id, GLsizei length, const GLchar *message); +typedef void (APIENTRYP PFNGLPOPDEBUGGROUPPROC) (void); +typedef void (APIENTRYP PFNGLOBJECTLABELPROC) (GLenum identifier, GLuint name, GLsizei length, const GLchar *label); +typedef void (APIENTRYP PFNGLGETOBJECTLABELPROC) (GLenum identifier, GLuint name, GLsizei bufSize, GLsizei *length, GLchar *label); +typedef void (APIENTRYP PFNGLOBJECTPTRLABELPROC) (const void *ptr, GLsizei length, const GLchar *label); +typedef void (APIENTRYP PFNGLGETOBJECTPTRLABELPROC) (const void *ptr, GLsizei bufSize, GLsizei *length, GLchar *label); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glClearBufferData (GLenum target, GLenum internalformat, GLenum format, GLenum type, const void *data); +GLAPI void APIENTRY glClearBufferSubData (GLenum target, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void *data); +GLAPI void APIENTRY glDispatchCompute (GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z); +GLAPI void APIENTRY glDispatchComputeIndirect (GLintptr indirect); +GLAPI void APIENTRY glCopyImageSubData (GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth); +GLAPI void APIENTRY glFramebufferParameteri (GLenum target, GLenum pname, GLint param); +GLAPI void APIENTRY glGetFramebufferParameteriv (GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetInternalformati64v (GLenum target, GLenum internalformat, GLenum pname, GLsizei count, GLint64 *params); +GLAPI void APIENTRY glInvalidateTexSubImage (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth); +GLAPI void APIENTRY glInvalidateTexImage (GLuint texture, GLint level); +GLAPI void APIENTRY glInvalidateBufferSubData (GLuint buffer, GLintptr offset, GLsizeiptr length); +GLAPI void APIENTRY glInvalidateBufferData (GLuint buffer); +GLAPI void APIENTRY glInvalidateFramebuffer (GLenum target, GLsizei numAttachments, const GLenum *attachments); +GLAPI void APIENTRY glInvalidateSubFramebuffer (GLenum target, GLsizei numAttachments, const GLenum *attachments, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glMultiDrawArraysIndirect (GLenum mode, const void *indirect, GLsizei drawcount, GLsizei stride); +GLAPI void APIENTRY glMultiDrawElementsIndirect (GLenum mode, GLenum type, const void *indirect, GLsizei drawcount, GLsizei stride); +GLAPI void APIENTRY glGetProgramInterfaceiv (GLuint program, GLenum programInterface, GLenum pname, GLint *params); +GLAPI GLuint APIENTRY glGetProgramResourceIndex (GLuint program, GLenum programInterface, const GLchar *name); +GLAPI void APIENTRY glGetProgramResourceName (GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei *length, GLchar *name); +GLAPI void APIENTRY glGetProgramResourceiv (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei count, GLsizei *length, GLint *params); +GLAPI GLint APIENTRY glGetProgramResourceLocation (GLuint program, GLenum programInterface, const GLchar *name); +GLAPI GLint APIENTRY glGetProgramResourceLocationIndex (GLuint program, GLenum programInterface, const GLchar *name); +GLAPI void APIENTRY glShaderStorageBlockBinding (GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding); +GLAPI void APIENTRY glTexBufferRange (GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); +GLAPI void APIENTRY glTexStorage2DMultisample (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations); +GLAPI void APIENTRY glTexStorage3DMultisample (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); +GLAPI void APIENTRY glTextureView (GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers); +GLAPI void APIENTRY glBindVertexBuffer (GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride); +GLAPI void APIENTRY glVertexAttribFormat (GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset); +GLAPI void APIENTRY glVertexAttribIFormat (GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +GLAPI void APIENTRY glVertexAttribLFormat (GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +GLAPI void APIENTRY glVertexAttribBinding (GLuint attribindex, GLuint bindingindex); +GLAPI void APIENTRY glVertexBindingDivisor (GLuint bindingindex, GLuint divisor); +GLAPI void APIENTRY glDebugMessageControl (GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint *ids, GLboolean enabled); +GLAPI void APIENTRY glDebugMessageInsert (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *buf); +GLAPI void APIENTRY glDebugMessageCallback (GLDEBUGPROC callback, const void *userParam); +GLAPI GLuint APIENTRY glGetDebugMessageLog (GLuint count, GLsizei bufSize, GLenum *sources, GLenum *types, GLuint *ids, GLenum *severities, GLsizei *lengths, GLchar *messageLog); +GLAPI void APIENTRY glPushDebugGroup (GLenum source, GLuint id, GLsizei length, const GLchar *message); +GLAPI void APIENTRY glPopDebugGroup (void); +GLAPI void APIENTRY glObjectLabel (GLenum identifier, GLuint name, GLsizei length, const GLchar *label); +GLAPI void APIENTRY glGetObjectLabel (GLenum identifier, GLuint name, GLsizei bufSize, GLsizei *length, GLchar *label); +GLAPI void APIENTRY glObjectPtrLabel (const void *ptr, GLsizei length, const GLchar *label); +GLAPI void APIENTRY glGetObjectPtrLabel (const void *ptr, GLsizei bufSize, GLsizei *length, GLchar *label); +#endif +#endif /* GL_VERSION_4_3 */ + +#ifndef GL_VERSION_4_4 +#define GL_VERSION_4_4 1 +#define GL_MAX_VERTEX_ATTRIB_STRIDE 0x82E5 +#define GL_PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED 0x8221 +#define GL_TEXTURE_BUFFER_BINDING 0x8C2A +#define GL_MAP_PERSISTENT_BIT 0x0040 +#define GL_MAP_COHERENT_BIT 0x0080 +#define GL_DYNAMIC_STORAGE_BIT 0x0100 +#define GL_CLIENT_STORAGE_BIT 0x0200 +#define GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT 0x00004000 +#define GL_BUFFER_IMMUTABLE_STORAGE 0x821F +#define GL_BUFFER_STORAGE_FLAGS 0x8220 +#define GL_CLEAR_TEXTURE 0x9365 +#define GL_LOCATION_COMPONENT 0x934A +#define GL_TRANSFORM_FEEDBACK_BUFFER_INDEX 0x934B +#define GL_TRANSFORM_FEEDBACK_BUFFER_STRIDE 0x934C +#define GL_QUERY_BUFFER 0x9192 +#define GL_QUERY_BUFFER_BARRIER_BIT 0x00008000 +#define GL_QUERY_BUFFER_BINDING 0x9193 +#define GL_QUERY_RESULT_NO_WAIT 0x9194 +#define GL_MIRROR_CLAMP_TO_EDGE 0x8743 +typedef void (APIENTRYP PFNGLBUFFERSTORAGEPROC) (GLenum target, GLsizeiptr size, const void *data, GLbitfield flags); +typedef void (APIENTRYP PFNGLCLEARTEXIMAGEPROC) (GLuint texture, GLint level, GLenum format, GLenum type, const void *data); +typedef void (APIENTRYP PFNGLCLEARTEXSUBIMAGEPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *data); +typedef void (APIENTRYP PFNGLBINDBUFFERSBASEPROC) (GLenum target, GLuint first, GLsizei count, const GLuint *buffers); +typedef void (APIENTRYP PFNGLBINDBUFFERSRANGEPROC) (GLenum target, GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizeiptr *sizes); +typedef void (APIENTRYP PFNGLBINDTEXTURESPROC) (GLuint first, GLsizei count, const GLuint *textures); +typedef void (APIENTRYP PFNGLBINDSAMPLERSPROC) (GLuint first, GLsizei count, const GLuint *samplers); +typedef void (APIENTRYP PFNGLBINDIMAGETEXTURESPROC) (GLuint first, GLsizei count, const GLuint *textures); +typedef void (APIENTRYP PFNGLBINDVERTEXBUFFERSPROC) (GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizei *strides); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBufferStorage (GLenum target, GLsizeiptr size, const void *data, GLbitfield flags); +GLAPI void APIENTRY glClearTexImage (GLuint texture, GLint level, GLenum format, GLenum type, const void *data); +GLAPI void APIENTRY glClearTexSubImage (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *data); +GLAPI void APIENTRY glBindBuffersBase (GLenum target, GLuint first, GLsizei count, const GLuint *buffers); +GLAPI void APIENTRY glBindBuffersRange (GLenum target, GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizeiptr *sizes); +GLAPI void APIENTRY glBindTextures (GLuint first, GLsizei count, const GLuint *textures); +GLAPI void APIENTRY glBindSamplers (GLuint first, GLsizei count, const GLuint *samplers); +GLAPI void APIENTRY glBindImageTextures (GLuint first, GLsizei count, const GLuint *textures); +GLAPI void APIENTRY glBindVertexBuffers (GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizei *strides); +#endif +#endif /* GL_VERSION_4_4 */ + +#ifndef GL_VERSION_4_5 +#define GL_VERSION_4_5 1 +#define GL_CONTEXT_LOST 0x0507 +#define GL_NEGATIVE_ONE_TO_ONE 0x935E +#define GL_ZERO_TO_ONE 0x935F +#define GL_CLIP_ORIGIN 0x935C +#define GL_CLIP_DEPTH_MODE 0x935D +#define GL_QUERY_WAIT_INVERTED 0x8E17 +#define GL_QUERY_NO_WAIT_INVERTED 0x8E18 +#define GL_QUERY_BY_REGION_WAIT_INVERTED 0x8E19 +#define GL_QUERY_BY_REGION_NO_WAIT_INVERTED 0x8E1A +#define GL_MAX_CULL_DISTANCES 0x82F9 +#define GL_MAX_COMBINED_CLIP_AND_CULL_DISTANCES 0x82FA +#define GL_TEXTURE_TARGET 0x1006 +#define GL_QUERY_TARGET 0x82EA +#define GL_GUILTY_CONTEXT_RESET 0x8253 +#define GL_INNOCENT_CONTEXT_RESET 0x8254 +#define GL_UNKNOWN_CONTEXT_RESET 0x8255 +#define GL_RESET_NOTIFICATION_STRATEGY 0x8256 +#define GL_LOSE_CONTEXT_ON_RESET 0x8252 +#define GL_NO_RESET_NOTIFICATION 0x8261 +#define GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT 0x00000004 +#define GL_CONTEXT_RELEASE_BEHAVIOR 0x82FB +#define GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH 0x82FC +typedef void (APIENTRYP PFNGLCLIPCONTROLPROC) (GLenum origin, GLenum depth); +typedef void (APIENTRYP PFNGLCREATETRANSFORMFEEDBACKSPROC) (GLsizei n, GLuint *ids); +typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKBUFFERBASEPROC) (GLuint xfb, GLuint index, GLuint buffer); +typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKBUFFERRANGEPROC) (GLuint xfb, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size); +typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKIVPROC) (GLuint xfb, GLenum pname, GLint *param); +typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint *param); +typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI64_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint64 *param); +typedef void (APIENTRYP PFNGLCREATEBUFFERSPROC) (GLsizei n, GLuint *buffers); +typedef void (APIENTRYP PFNGLNAMEDBUFFERSTORAGEPROC) (GLuint buffer, GLsizeiptr size, const void *data, GLbitfield flags); +typedef void (APIENTRYP PFNGLNAMEDBUFFERDATAPROC) (GLuint buffer, GLsizeiptr size, const void *data, GLenum usage); +typedef void (APIENTRYP PFNGLNAMEDBUFFERSUBDATAPROC) (GLuint buffer, GLintptr offset, GLsizeiptr size, const void *data); +typedef void (APIENTRYP PFNGLCOPYNAMEDBUFFERSUBDATAPROC) (GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size); +typedef void (APIENTRYP PFNGLCLEARNAMEDBUFFERDATAPROC) (GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void *data); +typedef void (APIENTRYP PFNGLCLEARNAMEDBUFFERSUBDATAPROC) (GLuint buffer, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void *data); +typedef void *(APIENTRYP PFNGLMAPNAMEDBUFFERPROC) (GLuint buffer, GLenum access); +typedef void *(APIENTRYP PFNGLMAPNAMEDBUFFERRANGEPROC) (GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access); +typedef GLboolean (APIENTRYP PFNGLUNMAPNAMEDBUFFERPROC) (GLuint buffer); +typedef void (APIENTRYP PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC) (GLuint buffer, GLintptr offset, GLsizeiptr length); +typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPARAMETERIVPROC) (GLuint buffer, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPARAMETERI64VPROC) (GLuint buffer, GLenum pname, GLint64 *params); +typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPOINTERVPROC) (GLuint buffer, GLenum pname, void **params); +typedef void (APIENTRYP PFNGLGETNAMEDBUFFERSUBDATAPROC) (GLuint buffer, GLintptr offset, GLsizeiptr size, void *data); +typedef void (APIENTRYP PFNGLCREATEFRAMEBUFFERSPROC) (GLsizei n, GLuint *framebuffers); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERRENDERBUFFERPROC) (GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERPARAMETERIPROC) (GLuint framebuffer, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTUREPROC) (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTURELAYERPROC) (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLint layer); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERDRAWBUFFERPROC) (GLuint framebuffer, GLenum buf); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC) (GLuint framebuffer, GLsizei n, const GLenum *bufs); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC) (GLuint framebuffer, GLenum src); +typedef void (APIENTRYP PFNGLINVALIDATENAMEDFRAMEBUFFERDATAPROC) (GLuint framebuffer, GLsizei numAttachments, const GLenum *attachments); +typedef void (APIENTRYP PFNGLINVALIDATENAMEDFRAMEBUFFERSUBDATAPROC) (GLuint framebuffer, GLsizei numAttachments, const GLenum *attachments, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERIVPROC) (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLint *value); +typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC) (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLuint *value); +typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERFVPROC) (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat *value); +typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERFIPROC) (GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil); +typedef void (APIENTRYP PFNGLBLITNAMEDFRAMEBUFFERPROC) (GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter); +typedef GLenum (APIENTRYP PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC) (GLuint framebuffer, GLenum target); +typedef void (APIENTRYP PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVPROC) (GLuint framebuffer, GLenum pname, GLint *param); +typedef void (APIENTRYP PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVPROC) (GLuint framebuffer, GLenum attachment, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLCREATERENDERBUFFERSPROC) (GLsizei n, GLuint *renderbuffers); +typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEPROC) (GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEPROC) (GLuint renderbuffer, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLGETNAMEDRENDERBUFFERPARAMETERIVPROC) (GLuint renderbuffer, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLCREATETEXTURESPROC) (GLenum target, GLsizei n, GLuint *textures); +typedef void (APIENTRYP PFNGLTEXTUREBUFFERPROC) (GLuint texture, GLenum internalformat, GLuint buffer); +typedef void (APIENTRYP PFNGLTEXTUREBUFFERRANGEPROC) (GLuint texture, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE1DPROC) (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE2DPROC) (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE3DPROC) (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE2DMULTISAMPLEPROC) (GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE3DMULTISAMPLEPROC) (GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); +typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE1DPROC) (GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE2DPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE3DPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE1DPROC) (GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE2DPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data); +typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE1DPROC) (GLuint texture, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE2DPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE3DPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERFPROC) (GLuint texture, GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERFVPROC) (GLuint texture, GLenum pname, const GLfloat *param); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIPROC) (GLuint texture, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIIVPROC) (GLuint texture, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIUIVPROC) (GLuint texture, GLenum pname, const GLuint *params); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIVPROC) (GLuint texture, GLenum pname, const GLint *param); +typedef void (APIENTRYP PFNGLGENERATETEXTUREMIPMAPPROC) (GLuint texture); +typedef void (APIENTRYP PFNGLBINDTEXTUREUNITPROC) (GLuint unit, GLuint texture); +typedef void (APIENTRYP PFNGLGETTEXTUREIMAGEPROC) (GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *pixels); +typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXTUREIMAGEPROC) (GLuint texture, GLint level, GLsizei bufSize, void *pixels); +typedef void (APIENTRYP PFNGLGETTEXTURELEVELPARAMETERFVPROC) (GLuint texture, GLint level, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETTEXTURELEVELPARAMETERIVPROC) (GLuint texture, GLint level, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERFVPROC) (GLuint texture, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIIVPROC) (GLuint texture, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIUIVPROC) (GLuint texture, GLenum pname, GLuint *params); +typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIVPROC) (GLuint texture, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLCREATEVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays); +typedef void (APIENTRYP PFNGLDISABLEVERTEXARRAYATTRIBPROC) (GLuint vaobj, GLuint index); +typedef void (APIENTRYP PFNGLENABLEVERTEXARRAYATTRIBPROC) (GLuint vaobj, GLuint index); +typedef void (APIENTRYP PFNGLVERTEXARRAYELEMENTBUFFERPROC) (GLuint vaobj, GLuint buffer); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXBUFFERPROC) (GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXBUFFERSPROC) (GLuint vaobj, GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizei *strides); +typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBBINDINGPROC) (GLuint vaobj, GLuint attribindex, GLuint bindingindex); +typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBFORMATPROC) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBIFORMATPROC) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBLFORMATPROC) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXARRAYBINDINGDIVISORPROC) (GLuint vaobj, GLuint bindingindex, GLuint divisor); +typedef void (APIENTRYP PFNGLGETVERTEXARRAYIVPROC) (GLuint vaobj, GLenum pname, GLint *param); +typedef void (APIENTRYP PFNGLGETVERTEXARRAYINDEXEDIVPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint *param); +typedef void (APIENTRYP PFNGLGETVERTEXARRAYINDEXED64IVPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint64 *param); +typedef void (APIENTRYP PFNGLCREATESAMPLERSPROC) (GLsizei n, GLuint *samplers); +typedef void (APIENTRYP PFNGLCREATEPROGRAMPIPELINESPROC) (GLsizei n, GLuint *pipelines); +typedef void (APIENTRYP PFNGLCREATEQUERIESPROC) (GLenum target, GLsizei n, GLuint *ids); +typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTI64VPROC) (GLuint id, GLuint buffer, GLenum pname, GLintptr offset); +typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTIVPROC) (GLuint id, GLuint buffer, GLenum pname, GLintptr offset); +typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTUI64VPROC) (GLuint id, GLuint buffer, GLenum pname, GLintptr offset); +typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTUIVPROC) (GLuint id, GLuint buffer, GLenum pname, GLintptr offset); +typedef void (APIENTRYP PFNGLMEMORYBARRIERBYREGIONPROC) (GLbitfield barriers); +typedef void (APIENTRYP PFNGLGETTEXTURESUBIMAGEPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, GLsizei bufSize, void *pixels); +typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXTURESUBIMAGEPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLsizei bufSize, void *pixels); +typedef GLenum (APIENTRYP PFNGLGETGRAPHICSRESETSTATUSPROC) (void); +typedef void (APIENTRYP PFNGLGETNCOMPRESSEDTEXIMAGEPROC) (GLenum target, GLint lod, GLsizei bufSize, void *pixels); +typedef void (APIENTRYP PFNGLGETNTEXIMAGEPROC) (GLenum target, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *pixels); +typedef void (APIENTRYP PFNGLGETNUNIFORMDVPROC) (GLuint program, GLint location, GLsizei bufSize, GLdouble *params); +typedef void (APIENTRYP PFNGLGETNUNIFORMFVPROC) (GLuint program, GLint location, GLsizei bufSize, GLfloat *params); +typedef void (APIENTRYP PFNGLGETNUNIFORMIVPROC) (GLuint program, GLint location, GLsizei bufSize, GLint *params); +typedef void (APIENTRYP PFNGLGETNUNIFORMUIVPROC) (GLuint program, GLint location, GLsizei bufSize, GLuint *params); +typedef void (APIENTRYP PFNGLREADNPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data); +typedef void (APIENTRYP PFNGLTEXTUREBARRIERPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glClipControl (GLenum origin, GLenum depth); +GLAPI void APIENTRY glCreateTransformFeedbacks (GLsizei n, GLuint *ids); +GLAPI void APIENTRY glTransformFeedbackBufferBase (GLuint xfb, GLuint index, GLuint buffer); +GLAPI void APIENTRY glTransformFeedbackBufferRange (GLuint xfb, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size); +GLAPI void APIENTRY glGetTransformFeedbackiv (GLuint xfb, GLenum pname, GLint *param); +GLAPI void APIENTRY glGetTransformFeedbacki_v (GLuint xfb, GLenum pname, GLuint index, GLint *param); +GLAPI void APIENTRY glGetTransformFeedbacki64_v (GLuint xfb, GLenum pname, GLuint index, GLint64 *param); +GLAPI void APIENTRY glCreateBuffers (GLsizei n, GLuint *buffers); +GLAPI void APIENTRY glNamedBufferStorage (GLuint buffer, GLsizeiptr size, const void *data, GLbitfield flags); +GLAPI void APIENTRY glNamedBufferData (GLuint buffer, GLsizeiptr size, const void *data, GLenum usage); +GLAPI void APIENTRY glNamedBufferSubData (GLuint buffer, GLintptr offset, GLsizeiptr size, const void *data); +GLAPI void APIENTRY glCopyNamedBufferSubData (GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size); +GLAPI void APIENTRY glClearNamedBufferData (GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void *data); +GLAPI void APIENTRY glClearNamedBufferSubData (GLuint buffer, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void *data); +GLAPI void *APIENTRY glMapNamedBuffer (GLuint buffer, GLenum access); +GLAPI void *APIENTRY glMapNamedBufferRange (GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access); +GLAPI GLboolean APIENTRY glUnmapNamedBuffer (GLuint buffer); +GLAPI void APIENTRY glFlushMappedNamedBufferRange (GLuint buffer, GLintptr offset, GLsizeiptr length); +GLAPI void APIENTRY glGetNamedBufferParameteriv (GLuint buffer, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetNamedBufferParameteri64v (GLuint buffer, GLenum pname, GLint64 *params); +GLAPI void APIENTRY glGetNamedBufferPointerv (GLuint buffer, GLenum pname, void **params); +GLAPI void APIENTRY glGetNamedBufferSubData (GLuint buffer, GLintptr offset, GLsizeiptr size, void *data); +GLAPI void APIENTRY glCreateFramebuffers (GLsizei n, GLuint *framebuffers); +GLAPI void APIENTRY glNamedFramebufferRenderbuffer (GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); +GLAPI void APIENTRY glNamedFramebufferParameteri (GLuint framebuffer, GLenum pname, GLint param); +GLAPI void APIENTRY glNamedFramebufferTexture (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level); +GLAPI void APIENTRY glNamedFramebufferTextureLayer (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLint layer); +GLAPI void APIENTRY glNamedFramebufferDrawBuffer (GLuint framebuffer, GLenum buf); +GLAPI void APIENTRY glNamedFramebufferDrawBuffers (GLuint framebuffer, GLsizei n, const GLenum *bufs); +GLAPI void APIENTRY glNamedFramebufferReadBuffer (GLuint framebuffer, GLenum src); +GLAPI void APIENTRY glInvalidateNamedFramebufferData (GLuint framebuffer, GLsizei numAttachments, const GLenum *attachments); +GLAPI void APIENTRY glInvalidateNamedFramebufferSubData (GLuint framebuffer, GLsizei numAttachments, const GLenum *attachments, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glClearNamedFramebufferiv (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLint *value); +GLAPI void APIENTRY glClearNamedFramebufferuiv (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLuint *value); +GLAPI void APIENTRY glClearNamedFramebufferfv (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat *value); +GLAPI void APIENTRY glClearNamedFramebufferfi (GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil); +GLAPI void APIENTRY glBlitNamedFramebuffer (GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter); +GLAPI GLenum APIENTRY glCheckNamedFramebufferStatus (GLuint framebuffer, GLenum target); +GLAPI void APIENTRY glGetNamedFramebufferParameteriv (GLuint framebuffer, GLenum pname, GLint *param); +GLAPI void APIENTRY glGetNamedFramebufferAttachmentParameteriv (GLuint framebuffer, GLenum attachment, GLenum pname, GLint *params); +GLAPI void APIENTRY glCreateRenderbuffers (GLsizei n, GLuint *renderbuffers); +GLAPI void APIENTRY glNamedRenderbufferStorage (GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glNamedRenderbufferStorageMultisample (GLuint renderbuffer, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glGetNamedRenderbufferParameteriv (GLuint renderbuffer, GLenum pname, GLint *params); +GLAPI void APIENTRY glCreateTextures (GLenum target, GLsizei n, GLuint *textures); +GLAPI void APIENTRY glTextureBuffer (GLuint texture, GLenum internalformat, GLuint buffer); +GLAPI void APIENTRY glTextureBufferRange (GLuint texture, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); +GLAPI void APIENTRY glTextureStorage1D (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width); +GLAPI void APIENTRY glTextureStorage2D (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glTextureStorage3D (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); +GLAPI void APIENTRY glTextureStorage2DMultisample (GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations); +GLAPI void APIENTRY glTextureStorage3DMultisample (GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); +GLAPI void APIENTRY glTextureSubImage1D (GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTextureSubImage2D (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTextureSubImage3D (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glCompressedTextureSubImage1D (GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glCompressedTextureSubImage2D (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glCompressedTextureSubImage3D (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data); +GLAPI void APIENTRY glCopyTextureSubImage1D (GLuint texture, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +GLAPI void APIENTRY glCopyTextureSubImage2D (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glCopyTextureSubImage3D (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glTextureParameterf (GLuint texture, GLenum pname, GLfloat param); +GLAPI void APIENTRY glTextureParameterfv (GLuint texture, GLenum pname, const GLfloat *param); +GLAPI void APIENTRY glTextureParameteri (GLuint texture, GLenum pname, GLint param); +GLAPI void APIENTRY glTextureParameterIiv (GLuint texture, GLenum pname, const GLint *params); +GLAPI void APIENTRY glTextureParameterIuiv (GLuint texture, GLenum pname, const GLuint *params); +GLAPI void APIENTRY glTextureParameteriv (GLuint texture, GLenum pname, const GLint *param); +GLAPI void APIENTRY glGenerateTextureMipmap (GLuint texture); +GLAPI void APIENTRY glBindTextureUnit (GLuint unit, GLuint texture); +GLAPI void APIENTRY glGetTextureImage (GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *pixels); +GLAPI void APIENTRY glGetCompressedTextureImage (GLuint texture, GLint level, GLsizei bufSize, void *pixels); +GLAPI void APIENTRY glGetTextureLevelParameterfv (GLuint texture, GLint level, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetTextureLevelParameteriv (GLuint texture, GLint level, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetTextureParameterfv (GLuint texture, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetTextureParameterIiv (GLuint texture, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetTextureParameterIuiv (GLuint texture, GLenum pname, GLuint *params); +GLAPI void APIENTRY glGetTextureParameteriv (GLuint texture, GLenum pname, GLint *params); +GLAPI void APIENTRY glCreateVertexArrays (GLsizei n, GLuint *arrays); +GLAPI void APIENTRY glDisableVertexArrayAttrib (GLuint vaobj, GLuint index); +GLAPI void APIENTRY glEnableVertexArrayAttrib (GLuint vaobj, GLuint index); +GLAPI void APIENTRY glVertexArrayElementBuffer (GLuint vaobj, GLuint buffer); +GLAPI void APIENTRY glVertexArrayVertexBuffer (GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride); +GLAPI void APIENTRY glVertexArrayVertexBuffers (GLuint vaobj, GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizei *strides); +GLAPI void APIENTRY glVertexArrayAttribBinding (GLuint vaobj, GLuint attribindex, GLuint bindingindex); +GLAPI void APIENTRY glVertexArrayAttribFormat (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset); +GLAPI void APIENTRY glVertexArrayAttribIFormat (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +GLAPI void APIENTRY glVertexArrayAttribLFormat (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +GLAPI void APIENTRY glVertexArrayBindingDivisor (GLuint vaobj, GLuint bindingindex, GLuint divisor); +GLAPI void APIENTRY glGetVertexArrayiv (GLuint vaobj, GLenum pname, GLint *param); +GLAPI void APIENTRY glGetVertexArrayIndexediv (GLuint vaobj, GLuint index, GLenum pname, GLint *param); +GLAPI void APIENTRY glGetVertexArrayIndexed64iv (GLuint vaobj, GLuint index, GLenum pname, GLint64 *param); +GLAPI void APIENTRY glCreateSamplers (GLsizei n, GLuint *samplers); +GLAPI void APIENTRY glCreateProgramPipelines (GLsizei n, GLuint *pipelines); +GLAPI void APIENTRY glCreateQueries (GLenum target, GLsizei n, GLuint *ids); +GLAPI void APIENTRY glGetQueryBufferObjecti64v (GLuint id, GLuint buffer, GLenum pname, GLintptr offset); +GLAPI void APIENTRY glGetQueryBufferObjectiv (GLuint id, GLuint buffer, GLenum pname, GLintptr offset); +GLAPI void APIENTRY glGetQueryBufferObjectui64v (GLuint id, GLuint buffer, GLenum pname, GLintptr offset); +GLAPI void APIENTRY glGetQueryBufferObjectuiv (GLuint id, GLuint buffer, GLenum pname, GLintptr offset); +GLAPI void APIENTRY glMemoryBarrierByRegion (GLbitfield barriers); +GLAPI void APIENTRY glGetTextureSubImage (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, GLsizei bufSize, void *pixels); +GLAPI void APIENTRY glGetCompressedTextureSubImage (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLsizei bufSize, void *pixels); +GLAPI GLenum APIENTRY glGetGraphicsResetStatus (void); +GLAPI void APIENTRY glGetnCompressedTexImage (GLenum target, GLint lod, GLsizei bufSize, void *pixels); +GLAPI void APIENTRY glGetnTexImage (GLenum target, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *pixels); +GLAPI void APIENTRY glGetnUniformdv (GLuint program, GLint location, GLsizei bufSize, GLdouble *params); +GLAPI void APIENTRY glGetnUniformfv (GLuint program, GLint location, GLsizei bufSize, GLfloat *params); +GLAPI void APIENTRY glGetnUniformiv (GLuint program, GLint location, GLsizei bufSize, GLint *params); +GLAPI void APIENTRY glGetnUniformuiv (GLuint program, GLint location, GLsizei bufSize, GLuint *params); +GLAPI void APIENTRY glReadnPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data); +GLAPI void APIENTRY glTextureBarrier (void); +#endif +#endif /* GL_VERSION_4_5 */ + +#ifndef GL_VERSION_4_6 +#define GL_VERSION_4_6 1 +#define GL_SHADER_BINARY_FORMAT_SPIR_V 0x9551 +#define GL_SPIR_V_BINARY 0x9552 +#define GL_PARAMETER_BUFFER 0x80EE +#define GL_PARAMETER_BUFFER_BINDING 0x80EF +#define GL_CONTEXT_FLAG_NO_ERROR_BIT 0x00000008 +#define GL_VERTICES_SUBMITTED 0x82EE +#define GL_PRIMITIVES_SUBMITTED 0x82EF +#define GL_VERTEX_SHADER_INVOCATIONS 0x82F0 +#define GL_TESS_CONTROL_SHADER_PATCHES 0x82F1 +#define GL_TESS_EVALUATION_SHADER_INVOCATIONS 0x82F2 +#define GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED 0x82F3 +#define GL_FRAGMENT_SHADER_INVOCATIONS 0x82F4 +#define GL_COMPUTE_SHADER_INVOCATIONS 0x82F5 +#define GL_CLIPPING_INPUT_PRIMITIVES 0x82F6 +#define GL_CLIPPING_OUTPUT_PRIMITIVES 0x82F7 +#define GL_POLYGON_OFFSET_CLAMP 0x8E1B +#define GL_SPIR_V_EXTENSIONS 0x9553 +#define GL_NUM_SPIR_V_EXTENSIONS 0x9554 +#define GL_TEXTURE_MAX_ANISOTROPY 0x84FE +#define GL_MAX_TEXTURE_MAX_ANISOTROPY 0x84FF +#define GL_TRANSFORM_FEEDBACK_OVERFLOW 0x82EC +#define GL_TRANSFORM_FEEDBACK_STREAM_OVERFLOW 0x82ED +typedef void (APIENTRYP PFNGLSPECIALIZESHADERPROC) (GLuint shader, const GLchar *pEntryPoint, GLuint numSpecializationConstants, const GLuint *pConstantIndex, const GLuint *pConstantValue); +typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC) (GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC) (GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +typedef void (APIENTRYP PFNGLPOLYGONOFFSETCLAMPPROC) (GLfloat factor, GLfloat units, GLfloat clamp); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glSpecializeShader (GLuint shader, const GLchar *pEntryPoint, GLuint numSpecializationConstants, const GLuint *pConstantIndex, const GLuint *pConstantValue); +GLAPI void APIENTRY glMultiDrawArraysIndirectCount (GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +GLAPI void APIENTRY glMultiDrawElementsIndirectCount (GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +GLAPI void APIENTRY glPolygonOffsetClamp (GLfloat factor, GLfloat units, GLfloat clamp); +#endif +#endif /* GL_VERSION_4_6 */ + +#ifndef GL_ARB_ES2_compatibility +#define GL_ARB_ES2_compatibility 1 +#endif /* GL_ARB_ES2_compatibility */ + +#ifndef GL_ARB_ES3_1_compatibility +#define GL_ARB_ES3_1_compatibility 1 +#endif /* GL_ARB_ES3_1_compatibility */ + +#ifndef GL_ARB_ES3_2_compatibility +#define GL_ARB_ES3_2_compatibility 1 +#define GL_PRIMITIVE_BOUNDING_BOX_ARB 0x92BE +#define GL_MULTISAMPLE_LINE_WIDTH_RANGE_ARB 0x9381 +#define GL_MULTISAMPLE_LINE_WIDTH_GRANULARITY_ARB 0x9382 +typedef void (APIENTRYP PFNGLPRIMITIVEBOUNDINGBOXARBPROC) (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glPrimitiveBoundingBoxARB (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW); +#endif +#endif /* GL_ARB_ES3_2_compatibility */ + +#ifndef GL_ARB_ES3_compatibility +#define GL_ARB_ES3_compatibility 1 +#endif /* GL_ARB_ES3_compatibility */ + +#ifndef GL_ARB_arrays_of_arrays +#define GL_ARB_arrays_of_arrays 1 +#endif /* GL_ARB_arrays_of_arrays */ + +#ifndef GL_ARB_base_instance +#define GL_ARB_base_instance 1 +#endif /* GL_ARB_base_instance */ + +#ifndef GL_ARB_bindless_texture +#define GL_ARB_bindless_texture 1 +typedef khronos_uint64_t GLuint64EXT; +#define GL_UNSIGNED_INT64_ARB 0x140F +typedef GLuint64 (APIENTRYP PFNGLGETTEXTUREHANDLEARBPROC) (GLuint texture); +typedef GLuint64 (APIENTRYP PFNGLGETTEXTURESAMPLERHANDLEARBPROC) (GLuint texture, GLuint sampler); +typedef void (APIENTRYP PFNGLMAKETEXTUREHANDLERESIDENTARBPROC) (GLuint64 handle); +typedef void (APIENTRYP PFNGLMAKETEXTUREHANDLENONRESIDENTARBPROC) (GLuint64 handle); +typedef GLuint64 (APIENTRYP PFNGLGETIMAGEHANDLEARBPROC) (GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum format); +typedef void (APIENTRYP PFNGLMAKEIMAGEHANDLERESIDENTARBPROC) (GLuint64 handle, GLenum access); +typedef void (APIENTRYP PFNGLMAKEIMAGEHANDLENONRESIDENTARBPROC) (GLuint64 handle); +typedef void (APIENTRYP PFNGLUNIFORMHANDLEUI64ARBPROC) (GLint location, GLuint64 value); +typedef void (APIENTRYP PFNGLUNIFORMHANDLEUI64VARBPROC) (GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64ARBPROC) (GLuint program, GLint location, GLuint64 value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLuint64 *values); +typedef GLboolean (APIENTRYP PFNGLISTEXTUREHANDLERESIDENTARBPROC) (GLuint64 handle); +typedef GLboolean (APIENTRYP PFNGLISIMAGEHANDLERESIDENTARBPROC) (GLuint64 handle); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL1UI64ARBPROC) (GLuint index, GLuint64EXT x); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL1UI64VARBPROC) (GLuint index, const GLuint64EXT *v); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBLUI64VARBPROC) (GLuint index, GLenum pname, GLuint64EXT *params); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI GLuint64 APIENTRY glGetTextureHandleARB (GLuint texture); +GLAPI GLuint64 APIENTRY glGetTextureSamplerHandleARB (GLuint texture, GLuint sampler); +GLAPI void APIENTRY glMakeTextureHandleResidentARB (GLuint64 handle); +GLAPI void APIENTRY glMakeTextureHandleNonResidentARB (GLuint64 handle); +GLAPI GLuint64 APIENTRY glGetImageHandleARB (GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum format); +GLAPI void APIENTRY glMakeImageHandleResidentARB (GLuint64 handle, GLenum access); +GLAPI void APIENTRY glMakeImageHandleNonResidentARB (GLuint64 handle); +GLAPI void APIENTRY glUniformHandleui64ARB (GLint location, GLuint64 value); +GLAPI void APIENTRY glUniformHandleui64vARB (GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glProgramUniformHandleui64ARB (GLuint program, GLint location, GLuint64 value); +GLAPI void APIENTRY glProgramUniformHandleui64vARB (GLuint program, GLint location, GLsizei count, const GLuint64 *values); +GLAPI GLboolean APIENTRY glIsTextureHandleResidentARB (GLuint64 handle); +GLAPI GLboolean APIENTRY glIsImageHandleResidentARB (GLuint64 handle); +GLAPI void APIENTRY glVertexAttribL1ui64ARB (GLuint index, GLuint64EXT x); +GLAPI void APIENTRY glVertexAttribL1ui64vARB (GLuint index, const GLuint64EXT *v); +GLAPI void APIENTRY glGetVertexAttribLui64vARB (GLuint index, GLenum pname, GLuint64EXT *params); +#endif +#endif /* GL_ARB_bindless_texture */ + +#ifndef GL_ARB_blend_func_extended +#define GL_ARB_blend_func_extended 1 +#endif /* GL_ARB_blend_func_extended */ + +#ifndef GL_ARB_buffer_storage +#define GL_ARB_buffer_storage 1 +#endif /* GL_ARB_buffer_storage */ + +#ifndef GL_ARB_cl_event +#define GL_ARB_cl_event 1 +struct _cl_context; +struct _cl_event; +#define GL_SYNC_CL_EVENT_ARB 0x8240 +#define GL_SYNC_CL_EVENT_COMPLETE_ARB 0x8241 +typedef GLsync (APIENTRYP PFNGLCREATESYNCFROMCLEVENTARBPROC) (struct _cl_context *context, struct _cl_event *event, GLbitfield flags); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI GLsync APIENTRY glCreateSyncFromCLeventARB (struct _cl_context *context, struct _cl_event *event, GLbitfield flags); +#endif +#endif /* GL_ARB_cl_event */ + +#ifndef GL_ARB_clear_buffer_object +#define GL_ARB_clear_buffer_object 1 +#endif /* GL_ARB_clear_buffer_object */ + +#ifndef GL_ARB_clear_texture +#define GL_ARB_clear_texture 1 +#endif /* GL_ARB_clear_texture */ + +#ifndef GL_ARB_clip_control +#define GL_ARB_clip_control 1 +#endif /* GL_ARB_clip_control */ + +#ifndef GL_ARB_compressed_texture_pixel_storage +#define GL_ARB_compressed_texture_pixel_storage 1 +#endif /* GL_ARB_compressed_texture_pixel_storage */ + +#ifndef GL_ARB_compute_shader +#define GL_ARB_compute_shader 1 +#endif /* GL_ARB_compute_shader */ + +#ifndef GL_ARB_compute_variable_group_size +#define GL_ARB_compute_variable_group_size 1 +#define GL_MAX_COMPUTE_VARIABLE_GROUP_INVOCATIONS_ARB 0x9344 +#define GL_MAX_COMPUTE_FIXED_GROUP_INVOCATIONS_ARB 0x90EB +#define GL_MAX_COMPUTE_VARIABLE_GROUP_SIZE_ARB 0x9345 +#define GL_MAX_COMPUTE_FIXED_GROUP_SIZE_ARB 0x91BF +typedef void (APIENTRYP PFNGLDISPATCHCOMPUTEGROUPSIZEARBPROC) (GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z, GLuint group_size_x, GLuint group_size_y, GLuint group_size_z); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDispatchComputeGroupSizeARB (GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z, GLuint group_size_x, GLuint group_size_y, GLuint group_size_z); +#endif +#endif /* GL_ARB_compute_variable_group_size */ + +#ifndef GL_ARB_conditional_render_inverted +#define GL_ARB_conditional_render_inverted 1 +#endif /* GL_ARB_conditional_render_inverted */ + +#ifndef GL_ARB_conservative_depth +#define GL_ARB_conservative_depth 1 +#endif /* GL_ARB_conservative_depth */ + +#ifndef GL_ARB_copy_buffer +#define GL_ARB_copy_buffer 1 +#endif /* GL_ARB_copy_buffer */ + +#ifndef GL_ARB_copy_image +#define GL_ARB_copy_image 1 +#endif /* GL_ARB_copy_image */ + +#ifndef GL_ARB_cull_distance +#define GL_ARB_cull_distance 1 +#endif /* GL_ARB_cull_distance */ + +#ifndef GL_ARB_debug_output +#define GL_ARB_debug_output 1 +typedef void (APIENTRY *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); +#define GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB 0x8242 +#define GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH_ARB 0x8243 +#define GL_DEBUG_CALLBACK_FUNCTION_ARB 0x8244 +#define GL_DEBUG_CALLBACK_USER_PARAM_ARB 0x8245 +#define GL_DEBUG_SOURCE_API_ARB 0x8246 +#define GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB 0x8247 +#define GL_DEBUG_SOURCE_SHADER_COMPILER_ARB 0x8248 +#define GL_DEBUG_SOURCE_THIRD_PARTY_ARB 0x8249 +#define GL_DEBUG_SOURCE_APPLICATION_ARB 0x824A +#define GL_DEBUG_SOURCE_OTHER_ARB 0x824B +#define GL_DEBUG_TYPE_ERROR_ARB 0x824C +#define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB 0x824D +#define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB 0x824E +#define GL_DEBUG_TYPE_PORTABILITY_ARB 0x824F +#define GL_DEBUG_TYPE_PERFORMANCE_ARB 0x8250 +#define GL_DEBUG_TYPE_OTHER_ARB 0x8251 +#define GL_MAX_DEBUG_MESSAGE_LENGTH_ARB 0x9143 +#define GL_MAX_DEBUG_LOGGED_MESSAGES_ARB 0x9144 +#define GL_DEBUG_LOGGED_MESSAGES_ARB 0x9145 +#define GL_DEBUG_SEVERITY_HIGH_ARB 0x9146 +#define GL_DEBUG_SEVERITY_MEDIUM_ARB 0x9147 +#define GL_DEBUG_SEVERITY_LOW_ARB 0x9148 +typedef void (APIENTRYP PFNGLDEBUGMESSAGECONTROLARBPROC) (GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint *ids, GLboolean enabled); +typedef void (APIENTRYP PFNGLDEBUGMESSAGEINSERTARBPROC) (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *buf); +typedef void (APIENTRYP PFNGLDEBUGMESSAGECALLBACKARBPROC) (GLDEBUGPROCARB callback, const void *userParam); +typedef GLuint (APIENTRYP PFNGLGETDEBUGMESSAGELOGARBPROC) (GLuint count, GLsizei bufSize, GLenum *sources, GLenum *types, GLuint *ids, GLenum *severities, GLsizei *lengths, GLchar *messageLog); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDebugMessageControlARB (GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint *ids, GLboolean enabled); +GLAPI void APIENTRY glDebugMessageInsertARB (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *buf); +GLAPI void APIENTRY glDebugMessageCallbackARB (GLDEBUGPROCARB callback, const void *userParam); +GLAPI GLuint APIENTRY glGetDebugMessageLogARB (GLuint count, GLsizei bufSize, GLenum *sources, GLenum *types, GLuint *ids, GLenum *severities, GLsizei *lengths, GLchar *messageLog); +#endif +#endif /* GL_ARB_debug_output */ + +#ifndef GL_ARB_depth_buffer_float +#define GL_ARB_depth_buffer_float 1 +#endif /* GL_ARB_depth_buffer_float */ + +#ifndef GL_ARB_depth_clamp +#define GL_ARB_depth_clamp 1 +#endif /* GL_ARB_depth_clamp */ + +#ifndef GL_ARB_derivative_control +#define GL_ARB_derivative_control 1 +#endif /* GL_ARB_derivative_control */ + +#ifndef GL_ARB_direct_state_access +#define GL_ARB_direct_state_access 1 +#endif /* GL_ARB_direct_state_access */ + +#ifndef GL_ARB_draw_buffers_blend +#define GL_ARB_draw_buffers_blend 1 +typedef void (APIENTRYP PFNGLBLENDEQUATIONIARBPROC) (GLuint buf, GLenum mode); +typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEIARBPROC) (GLuint buf, GLenum modeRGB, GLenum modeAlpha); +typedef void (APIENTRYP PFNGLBLENDFUNCIARBPROC) (GLuint buf, GLenum src, GLenum dst); +typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEIARBPROC) (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBlendEquationiARB (GLuint buf, GLenum mode); +GLAPI void APIENTRY glBlendEquationSeparateiARB (GLuint buf, GLenum modeRGB, GLenum modeAlpha); +GLAPI void APIENTRY glBlendFunciARB (GLuint buf, GLenum src, GLenum dst); +GLAPI void APIENTRY glBlendFuncSeparateiARB (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha); +#endif +#endif /* GL_ARB_draw_buffers_blend */ + +#ifndef GL_ARB_draw_elements_base_vertex +#define GL_ARB_draw_elements_base_vertex 1 +#endif /* GL_ARB_draw_elements_base_vertex */ + +#ifndef GL_ARB_draw_indirect +#define GL_ARB_draw_indirect 1 +#endif /* GL_ARB_draw_indirect */ + +#ifndef GL_ARB_draw_instanced +#define GL_ARB_draw_instanced 1 +typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDARBPROC) (GLenum mode, GLint first, GLsizei count, GLsizei primcount); +typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDARBPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawArraysInstancedARB (GLenum mode, GLint first, GLsizei count, GLsizei primcount); +GLAPI void APIENTRY glDrawElementsInstancedARB (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); +#endif +#endif /* GL_ARB_draw_instanced */ + +#ifndef GL_ARB_enhanced_layouts +#define GL_ARB_enhanced_layouts 1 +#endif /* GL_ARB_enhanced_layouts */ + +#ifndef GL_ARB_explicit_attrib_location +#define GL_ARB_explicit_attrib_location 1 +#endif /* GL_ARB_explicit_attrib_location */ + +#ifndef GL_ARB_explicit_uniform_location +#define GL_ARB_explicit_uniform_location 1 +#endif /* GL_ARB_explicit_uniform_location */ + +#ifndef GL_ARB_fragment_coord_conventions +#define GL_ARB_fragment_coord_conventions 1 +#endif /* GL_ARB_fragment_coord_conventions */ + +#ifndef GL_ARB_fragment_layer_viewport +#define GL_ARB_fragment_layer_viewport 1 +#endif /* GL_ARB_fragment_layer_viewport */ + +#ifndef GL_ARB_fragment_shader_interlock +#define GL_ARB_fragment_shader_interlock 1 +#endif /* GL_ARB_fragment_shader_interlock */ + +#ifndef GL_ARB_framebuffer_no_attachments +#define GL_ARB_framebuffer_no_attachments 1 +#endif /* GL_ARB_framebuffer_no_attachments */ + +#ifndef GL_ARB_framebuffer_object +#define GL_ARB_framebuffer_object 1 +#endif /* GL_ARB_framebuffer_object */ + +#ifndef GL_ARB_framebuffer_sRGB +#define GL_ARB_framebuffer_sRGB 1 +#endif /* GL_ARB_framebuffer_sRGB */ + +#ifndef GL_ARB_geometry_shader4 +#define GL_ARB_geometry_shader4 1 +#define GL_LINES_ADJACENCY_ARB 0x000A +#define GL_LINE_STRIP_ADJACENCY_ARB 0x000B +#define GL_TRIANGLES_ADJACENCY_ARB 0x000C +#define GL_TRIANGLE_STRIP_ADJACENCY_ARB 0x000D +#define GL_PROGRAM_POINT_SIZE_ARB 0x8642 +#define GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB 0x8C29 +#define GL_FRAMEBUFFER_ATTACHMENT_LAYERED_ARB 0x8DA7 +#define GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_ARB 0x8DA8 +#define GL_FRAMEBUFFER_INCOMPLETE_LAYER_COUNT_ARB 0x8DA9 +#define GL_GEOMETRY_SHADER_ARB 0x8DD9 +#define GL_GEOMETRY_VERTICES_OUT_ARB 0x8DDA +#define GL_GEOMETRY_INPUT_TYPE_ARB 0x8DDB +#define GL_GEOMETRY_OUTPUT_TYPE_ARB 0x8DDC +#define GL_MAX_GEOMETRY_VARYING_COMPONENTS_ARB 0x8DDD +#define GL_MAX_VERTEX_VARYING_COMPONENTS_ARB 0x8DDE +#define GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_ARB 0x8DDF +#define GL_MAX_GEOMETRY_OUTPUT_VERTICES_ARB 0x8DE0 +#define GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_ARB 0x8DE1 +typedef void (APIENTRYP PFNGLPROGRAMPARAMETERIARBPROC) (GLuint program, GLenum pname, GLint value); +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTUREARBPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURELAYERARBPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer); +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTUREFACEARBPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLenum face); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glProgramParameteriARB (GLuint program, GLenum pname, GLint value); +GLAPI void APIENTRY glFramebufferTextureARB (GLenum target, GLenum attachment, GLuint texture, GLint level); +GLAPI void APIENTRY glFramebufferTextureLayerARB (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer); +GLAPI void APIENTRY glFramebufferTextureFaceARB (GLenum target, GLenum attachment, GLuint texture, GLint level, GLenum face); +#endif +#endif /* GL_ARB_geometry_shader4 */ + +#ifndef GL_ARB_get_program_binary +#define GL_ARB_get_program_binary 1 +#endif /* GL_ARB_get_program_binary */ + +#ifndef GL_ARB_get_texture_sub_image +#define GL_ARB_get_texture_sub_image 1 +#endif /* GL_ARB_get_texture_sub_image */ + +#ifndef GL_ARB_gl_spirv +#define GL_ARB_gl_spirv 1 +#define GL_SHADER_BINARY_FORMAT_SPIR_V_ARB 0x9551 +#define GL_SPIR_V_BINARY_ARB 0x9552 +typedef void (APIENTRYP PFNGLSPECIALIZESHADERARBPROC) (GLuint shader, const GLchar *pEntryPoint, GLuint numSpecializationConstants, const GLuint *pConstantIndex, const GLuint *pConstantValue); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glSpecializeShaderARB (GLuint shader, const GLchar *pEntryPoint, GLuint numSpecializationConstants, const GLuint *pConstantIndex, const GLuint *pConstantValue); +#endif +#endif /* GL_ARB_gl_spirv */ + +#ifndef GL_ARB_gpu_shader5 +#define GL_ARB_gpu_shader5 1 +#endif /* GL_ARB_gpu_shader5 */ + +#ifndef GL_ARB_gpu_shader_fp64 +#define GL_ARB_gpu_shader_fp64 1 +#endif /* GL_ARB_gpu_shader_fp64 */ + +#ifndef GL_ARB_gpu_shader_int64 +#define GL_ARB_gpu_shader_int64 1 +#define GL_INT64_ARB 0x140E +#define GL_INT64_VEC2_ARB 0x8FE9 +#define GL_INT64_VEC3_ARB 0x8FEA +#define GL_INT64_VEC4_ARB 0x8FEB +#define GL_UNSIGNED_INT64_VEC2_ARB 0x8FF5 +#define GL_UNSIGNED_INT64_VEC3_ARB 0x8FF6 +#define GL_UNSIGNED_INT64_VEC4_ARB 0x8FF7 +typedef void (APIENTRYP PFNGLUNIFORM1I64ARBPROC) (GLint location, GLint64 x); +typedef void (APIENTRYP PFNGLUNIFORM2I64ARBPROC) (GLint location, GLint64 x, GLint64 y); +typedef void (APIENTRYP PFNGLUNIFORM3I64ARBPROC) (GLint location, GLint64 x, GLint64 y, GLint64 z); +typedef void (APIENTRYP PFNGLUNIFORM4I64ARBPROC) (GLint location, GLint64 x, GLint64 y, GLint64 z, GLint64 w); +typedef void (APIENTRYP PFNGLUNIFORM1I64VARBPROC) (GLint location, GLsizei count, const GLint64 *value); +typedef void (APIENTRYP PFNGLUNIFORM2I64VARBPROC) (GLint location, GLsizei count, const GLint64 *value); +typedef void (APIENTRYP PFNGLUNIFORM3I64VARBPROC) (GLint location, GLsizei count, const GLint64 *value); +typedef void (APIENTRYP PFNGLUNIFORM4I64VARBPROC) (GLint location, GLsizei count, const GLint64 *value); +typedef void (APIENTRYP PFNGLUNIFORM1UI64ARBPROC) (GLint location, GLuint64 x); +typedef void (APIENTRYP PFNGLUNIFORM2UI64ARBPROC) (GLint location, GLuint64 x, GLuint64 y); +typedef void (APIENTRYP PFNGLUNIFORM3UI64ARBPROC) (GLint location, GLuint64 x, GLuint64 y, GLuint64 z); +typedef void (APIENTRYP PFNGLUNIFORM4UI64ARBPROC) (GLint location, GLuint64 x, GLuint64 y, GLuint64 z, GLuint64 w); +typedef void (APIENTRYP PFNGLUNIFORM1UI64VARBPROC) (GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLUNIFORM2UI64VARBPROC) (GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLUNIFORM3UI64VARBPROC) (GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLUNIFORM4UI64VARBPROC) (GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLGETUNIFORMI64VARBPROC) (GLuint program, GLint location, GLint64 *params); +typedef void (APIENTRYP PFNGLGETUNIFORMUI64VARBPROC) (GLuint program, GLint location, GLuint64 *params); +typedef void (APIENTRYP PFNGLGETNUNIFORMI64VARBPROC) (GLuint program, GLint location, GLsizei bufSize, GLint64 *params); +typedef void (APIENTRYP PFNGLGETNUNIFORMUI64VARBPROC) (GLuint program, GLint location, GLsizei bufSize, GLuint64 *params); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1I64ARBPROC) (GLuint program, GLint location, GLint64 x); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2I64ARBPROC) (GLuint program, GLint location, GLint64 x, GLint64 y); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3I64ARBPROC) (GLuint program, GLint location, GLint64 x, GLint64 y, GLint64 z); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4I64ARBPROC) (GLuint program, GLint location, GLint64 x, GLint64 y, GLint64 z, GLint64 w); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1I64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2I64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3I64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4I64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UI64ARBPROC) (GLuint program, GLint location, GLuint64 x); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UI64ARBPROC) (GLuint program, GLint location, GLuint64 x, GLuint64 y); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UI64ARBPROC) (GLuint program, GLint location, GLuint64 x, GLuint64 y, GLuint64 z); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UI64ARBPROC) (GLuint program, GLint location, GLuint64 x, GLuint64 y, GLuint64 z, GLuint64 w); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UI64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UI64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UI64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UI64VARBPROC) (GLuint program, GLint location, GLsizei count, const GLuint64 *value); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glUniform1i64ARB (GLint location, GLint64 x); +GLAPI void APIENTRY glUniform2i64ARB (GLint location, GLint64 x, GLint64 y); +GLAPI void APIENTRY glUniform3i64ARB (GLint location, GLint64 x, GLint64 y, GLint64 z); +GLAPI void APIENTRY glUniform4i64ARB (GLint location, GLint64 x, GLint64 y, GLint64 z, GLint64 w); +GLAPI void APIENTRY glUniform1i64vARB (GLint location, GLsizei count, const GLint64 *value); +GLAPI void APIENTRY glUniform2i64vARB (GLint location, GLsizei count, const GLint64 *value); +GLAPI void APIENTRY glUniform3i64vARB (GLint location, GLsizei count, const GLint64 *value); +GLAPI void APIENTRY glUniform4i64vARB (GLint location, GLsizei count, const GLint64 *value); +GLAPI void APIENTRY glUniform1ui64ARB (GLint location, GLuint64 x); +GLAPI void APIENTRY glUniform2ui64ARB (GLint location, GLuint64 x, GLuint64 y); +GLAPI void APIENTRY glUniform3ui64ARB (GLint location, GLuint64 x, GLuint64 y, GLuint64 z); +GLAPI void APIENTRY glUniform4ui64ARB (GLint location, GLuint64 x, GLuint64 y, GLuint64 z, GLuint64 w); +GLAPI void APIENTRY glUniform1ui64vARB (GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glUniform2ui64vARB (GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glUniform3ui64vARB (GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glUniform4ui64vARB (GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glGetUniformi64vARB (GLuint program, GLint location, GLint64 *params); +GLAPI void APIENTRY glGetUniformui64vARB (GLuint program, GLint location, GLuint64 *params); +GLAPI void APIENTRY glGetnUniformi64vARB (GLuint program, GLint location, GLsizei bufSize, GLint64 *params); +GLAPI void APIENTRY glGetnUniformui64vARB (GLuint program, GLint location, GLsizei bufSize, GLuint64 *params); +GLAPI void APIENTRY glProgramUniform1i64ARB (GLuint program, GLint location, GLint64 x); +GLAPI void APIENTRY glProgramUniform2i64ARB (GLuint program, GLint location, GLint64 x, GLint64 y); +GLAPI void APIENTRY glProgramUniform3i64ARB (GLuint program, GLint location, GLint64 x, GLint64 y, GLint64 z); +GLAPI void APIENTRY glProgramUniform4i64ARB (GLuint program, GLint location, GLint64 x, GLint64 y, GLint64 z, GLint64 w); +GLAPI void APIENTRY glProgramUniform1i64vARB (GLuint program, GLint location, GLsizei count, const GLint64 *value); +GLAPI void APIENTRY glProgramUniform2i64vARB (GLuint program, GLint location, GLsizei count, const GLint64 *value); +GLAPI void APIENTRY glProgramUniform3i64vARB (GLuint program, GLint location, GLsizei count, const GLint64 *value); +GLAPI void APIENTRY glProgramUniform4i64vARB (GLuint program, GLint location, GLsizei count, const GLint64 *value); +GLAPI void APIENTRY glProgramUniform1ui64ARB (GLuint program, GLint location, GLuint64 x); +GLAPI void APIENTRY glProgramUniform2ui64ARB (GLuint program, GLint location, GLuint64 x, GLuint64 y); +GLAPI void APIENTRY glProgramUniform3ui64ARB (GLuint program, GLint location, GLuint64 x, GLuint64 y, GLuint64 z); +GLAPI void APIENTRY glProgramUniform4ui64ARB (GLuint program, GLint location, GLuint64 x, GLuint64 y, GLuint64 z, GLuint64 w); +GLAPI void APIENTRY glProgramUniform1ui64vARB (GLuint program, GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glProgramUniform2ui64vARB (GLuint program, GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glProgramUniform3ui64vARB (GLuint program, GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glProgramUniform4ui64vARB (GLuint program, GLint location, GLsizei count, const GLuint64 *value); +#endif +#endif /* GL_ARB_gpu_shader_int64 */ + +#ifndef GL_ARB_half_float_vertex +#define GL_ARB_half_float_vertex 1 +#endif /* GL_ARB_half_float_vertex */ + +#ifndef GL_ARB_imaging +#define GL_ARB_imaging 1 +#endif /* GL_ARB_imaging */ + +#ifndef GL_ARB_indirect_parameters +#define GL_ARB_indirect_parameters 1 +#define GL_PARAMETER_BUFFER_ARB 0x80EE +#define GL_PARAMETER_BUFFER_BINDING_ARB 0x80EF +typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTCOUNTARBPROC) (GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTARBPROC) (GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMultiDrawArraysIndirectCountARB (GLenum mode, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +GLAPI void APIENTRY glMultiDrawElementsIndirectCountARB (GLenum mode, GLenum type, const void *indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +#endif +#endif /* GL_ARB_indirect_parameters */ + +#ifndef GL_ARB_instanced_arrays +#define GL_ARB_instanced_arrays 1 +#define GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB 0x88FE +typedef void (APIENTRYP PFNGLVERTEXATTRIBDIVISORARBPROC) (GLuint index, GLuint divisor); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glVertexAttribDivisorARB (GLuint index, GLuint divisor); +#endif +#endif /* GL_ARB_instanced_arrays */ + +#ifndef GL_ARB_internalformat_query +#define GL_ARB_internalformat_query 1 +#endif /* GL_ARB_internalformat_query */ + +#ifndef GL_ARB_internalformat_query2 +#define GL_ARB_internalformat_query2 1 +#define GL_SRGB_DECODE_ARB 0x8299 +#define GL_VIEW_CLASS_EAC_R11 0x9383 +#define GL_VIEW_CLASS_EAC_RG11 0x9384 +#define GL_VIEW_CLASS_ETC2_RGB 0x9385 +#define GL_VIEW_CLASS_ETC2_RGBA 0x9386 +#define GL_VIEW_CLASS_ETC2_EAC_RGBA 0x9387 +#define GL_VIEW_CLASS_ASTC_4x4_RGBA 0x9388 +#define GL_VIEW_CLASS_ASTC_5x4_RGBA 0x9389 +#define GL_VIEW_CLASS_ASTC_5x5_RGBA 0x938A +#define GL_VIEW_CLASS_ASTC_6x5_RGBA 0x938B +#define GL_VIEW_CLASS_ASTC_6x6_RGBA 0x938C +#define GL_VIEW_CLASS_ASTC_8x5_RGBA 0x938D +#define GL_VIEW_CLASS_ASTC_8x6_RGBA 0x938E +#define GL_VIEW_CLASS_ASTC_8x8_RGBA 0x938F +#define GL_VIEW_CLASS_ASTC_10x5_RGBA 0x9390 +#define GL_VIEW_CLASS_ASTC_10x6_RGBA 0x9391 +#define GL_VIEW_CLASS_ASTC_10x8_RGBA 0x9392 +#define GL_VIEW_CLASS_ASTC_10x10_RGBA 0x9393 +#define GL_VIEW_CLASS_ASTC_12x10_RGBA 0x9394 +#define GL_VIEW_CLASS_ASTC_12x12_RGBA 0x9395 +#endif /* GL_ARB_internalformat_query2 */ + +#ifndef GL_ARB_invalidate_subdata +#define GL_ARB_invalidate_subdata 1 +#endif /* GL_ARB_invalidate_subdata */ + +#ifndef GL_ARB_map_buffer_alignment +#define GL_ARB_map_buffer_alignment 1 +#endif /* GL_ARB_map_buffer_alignment */ + +#ifndef GL_ARB_map_buffer_range +#define GL_ARB_map_buffer_range 1 +#endif /* GL_ARB_map_buffer_range */ + +#ifndef GL_ARB_multi_bind +#define GL_ARB_multi_bind 1 +#endif /* GL_ARB_multi_bind */ + +#ifndef GL_ARB_multi_draw_indirect +#define GL_ARB_multi_draw_indirect 1 +#endif /* GL_ARB_multi_draw_indirect */ + +#ifndef GL_ARB_occlusion_query2 +#define GL_ARB_occlusion_query2 1 +#endif /* GL_ARB_occlusion_query2 */ + +#ifndef GL_ARB_parallel_shader_compile +#define GL_ARB_parallel_shader_compile 1 +#define GL_MAX_SHADER_COMPILER_THREADS_ARB 0x91B0 +#define GL_COMPLETION_STATUS_ARB 0x91B1 +typedef void (APIENTRYP PFNGLMAXSHADERCOMPILERTHREADSARBPROC) (GLuint count); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMaxShaderCompilerThreadsARB (GLuint count); +#endif +#endif /* GL_ARB_parallel_shader_compile */ + +#ifndef GL_ARB_pipeline_statistics_query +#define GL_ARB_pipeline_statistics_query 1 +#define GL_VERTICES_SUBMITTED_ARB 0x82EE +#define GL_PRIMITIVES_SUBMITTED_ARB 0x82EF +#define GL_VERTEX_SHADER_INVOCATIONS_ARB 0x82F0 +#define GL_TESS_CONTROL_SHADER_PATCHES_ARB 0x82F1 +#define GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB 0x82F2 +#define GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB 0x82F3 +#define GL_FRAGMENT_SHADER_INVOCATIONS_ARB 0x82F4 +#define GL_COMPUTE_SHADER_INVOCATIONS_ARB 0x82F5 +#define GL_CLIPPING_INPUT_PRIMITIVES_ARB 0x82F6 +#define GL_CLIPPING_OUTPUT_PRIMITIVES_ARB 0x82F7 +#endif /* GL_ARB_pipeline_statistics_query */ + +#ifndef GL_ARB_pixel_buffer_object +#define GL_ARB_pixel_buffer_object 1 +#define GL_PIXEL_PACK_BUFFER_ARB 0x88EB +#define GL_PIXEL_UNPACK_BUFFER_ARB 0x88EC +#define GL_PIXEL_PACK_BUFFER_BINDING_ARB 0x88ED +#define GL_PIXEL_UNPACK_BUFFER_BINDING_ARB 0x88EF +#endif /* GL_ARB_pixel_buffer_object */ + +#ifndef GL_ARB_polygon_offset_clamp +#define GL_ARB_polygon_offset_clamp 1 +#endif /* GL_ARB_polygon_offset_clamp */ + +#ifndef GL_ARB_post_depth_coverage +#define GL_ARB_post_depth_coverage 1 +#endif /* GL_ARB_post_depth_coverage */ + +#ifndef GL_ARB_program_interface_query +#define GL_ARB_program_interface_query 1 +#endif /* GL_ARB_program_interface_query */ + +#ifndef GL_ARB_provoking_vertex +#define GL_ARB_provoking_vertex 1 +#endif /* GL_ARB_provoking_vertex */ + +#ifndef GL_ARB_query_buffer_object +#define GL_ARB_query_buffer_object 1 +#endif /* GL_ARB_query_buffer_object */ + +#ifndef GL_ARB_robust_buffer_access_behavior +#define GL_ARB_robust_buffer_access_behavior 1 +#endif /* GL_ARB_robust_buffer_access_behavior */ + +#ifndef GL_ARB_robustness +#define GL_ARB_robustness 1 +#define GL_CONTEXT_FLAG_ROBUST_ACCESS_BIT_ARB 0x00000004 +#define GL_LOSE_CONTEXT_ON_RESET_ARB 0x8252 +#define GL_GUILTY_CONTEXT_RESET_ARB 0x8253 +#define GL_INNOCENT_CONTEXT_RESET_ARB 0x8254 +#define GL_UNKNOWN_CONTEXT_RESET_ARB 0x8255 +#define GL_RESET_NOTIFICATION_STRATEGY_ARB 0x8256 +#define GL_NO_RESET_NOTIFICATION_ARB 0x8261 +typedef GLenum (APIENTRYP PFNGLGETGRAPHICSRESETSTATUSARBPROC) (void); +typedef void (APIENTRYP PFNGLGETNTEXIMAGEARBPROC) (GLenum target, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *img); +typedef void (APIENTRYP PFNGLREADNPIXELSARBPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data); +typedef void (APIENTRYP PFNGLGETNCOMPRESSEDTEXIMAGEARBPROC) (GLenum target, GLint lod, GLsizei bufSize, void *img); +typedef void (APIENTRYP PFNGLGETNUNIFORMFVARBPROC) (GLuint program, GLint location, GLsizei bufSize, GLfloat *params); +typedef void (APIENTRYP PFNGLGETNUNIFORMIVARBPROC) (GLuint program, GLint location, GLsizei bufSize, GLint *params); +typedef void (APIENTRYP PFNGLGETNUNIFORMUIVARBPROC) (GLuint program, GLint location, GLsizei bufSize, GLuint *params); +typedef void (APIENTRYP PFNGLGETNUNIFORMDVARBPROC) (GLuint program, GLint location, GLsizei bufSize, GLdouble *params); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI GLenum APIENTRY glGetGraphicsResetStatusARB (void); +GLAPI void APIENTRY glGetnTexImageARB (GLenum target, GLint level, GLenum format, GLenum type, GLsizei bufSize, void *img); +GLAPI void APIENTRY glReadnPixelsARB (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data); +GLAPI void APIENTRY glGetnCompressedTexImageARB (GLenum target, GLint lod, GLsizei bufSize, void *img); +GLAPI void APIENTRY glGetnUniformfvARB (GLuint program, GLint location, GLsizei bufSize, GLfloat *params); +GLAPI void APIENTRY glGetnUniformivARB (GLuint program, GLint location, GLsizei bufSize, GLint *params); +GLAPI void APIENTRY glGetnUniformuivARB (GLuint program, GLint location, GLsizei bufSize, GLuint *params); +GLAPI void APIENTRY glGetnUniformdvARB (GLuint program, GLint location, GLsizei bufSize, GLdouble *params); +#endif +#endif /* GL_ARB_robustness */ + +#ifndef GL_ARB_robustness_isolation +#define GL_ARB_robustness_isolation 1 +#endif /* GL_ARB_robustness_isolation */ + +#ifndef GL_ARB_sample_locations +#define GL_ARB_sample_locations 1 +#define GL_SAMPLE_LOCATION_SUBPIXEL_BITS_ARB 0x933D +#define GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_ARB 0x933E +#define GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_ARB 0x933F +#define GL_PROGRAMMABLE_SAMPLE_LOCATION_TABLE_SIZE_ARB 0x9340 +#define GL_SAMPLE_LOCATION_ARB 0x8E50 +#define GL_PROGRAMMABLE_SAMPLE_LOCATION_ARB 0x9341 +#define GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB 0x9342 +#define GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB 0x9343 +typedef void (APIENTRYP PFNGLFRAMEBUFFERSAMPLELOCATIONSFVARBPROC) (GLenum target, GLuint start, GLsizei count, const GLfloat *v); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERSAMPLELOCATIONSFVARBPROC) (GLuint framebuffer, GLuint start, GLsizei count, const GLfloat *v); +typedef void (APIENTRYP PFNGLEVALUATEDEPTHVALUESARBPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glFramebufferSampleLocationsfvARB (GLenum target, GLuint start, GLsizei count, const GLfloat *v); +GLAPI void APIENTRY glNamedFramebufferSampleLocationsfvARB (GLuint framebuffer, GLuint start, GLsizei count, const GLfloat *v); +GLAPI void APIENTRY glEvaluateDepthValuesARB (void); +#endif +#endif /* GL_ARB_sample_locations */ + +#ifndef GL_ARB_sample_shading +#define GL_ARB_sample_shading 1 +#define GL_SAMPLE_SHADING_ARB 0x8C36 +#define GL_MIN_SAMPLE_SHADING_VALUE_ARB 0x8C37 +typedef void (APIENTRYP PFNGLMINSAMPLESHADINGARBPROC) (GLfloat value); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMinSampleShadingARB (GLfloat value); +#endif +#endif /* GL_ARB_sample_shading */ + +#ifndef GL_ARB_sampler_objects +#define GL_ARB_sampler_objects 1 +#endif /* GL_ARB_sampler_objects */ + +#ifndef GL_ARB_seamless_cube_map +#define GL_ARB_seamless_cube_map 1 +#endif /* GL_ARB_seamless_cube_map */ + +#ifndef GL_ARB_seamless_cubemap_per_texture +#define GL_ARB_seamless_cubemap_per_texture 1 +#endif /* GL_ARB_seamless_cubemap_per_texture */ + +#ifndef GL_ARB_separate_shader_objects +#define GL_ARB_separate_shader_objects 1 +#endif /* GL_ARB_separate_shader_objects */ + +#ifndef GL_ARB_shader_atomic_counter_ops +#define GL_ARB_shader_atomic_counter_ops 1 +#endif /* GL_ARB_shader_atomic_counter_ops */ + +#ifndef GL_ARB_shader_atomic_counters +#define GL_ARB_shader_atomic_counters 1 +#endif /* GL_ARB_shader_atomic_counters */ + +#ifndef GL_ARB_shader_ballot +#define GL_ARB_shader_ballot 1 +#endif /* GL_ARB_shader_ballot */ + +#ifndef GL_ARB_shader_bit_encoding +#define GL_ARB_shader_bit_encoding 1 +#endif /* GL_ARB_shader_bit_encoding */ + +#ifndef GL_ARB_shader_clock +#define GL_ARB_shader_clock 1 +#endif /* GL_ARB_shader_clock */ + +#ifndef GL_ARB_shader_draw_parameters +#define GL_ARB_shader_draw_parameters 1 +#endif /* GL_ARB_shader_draw_parameters */ + +#ifndef GL_ARB_shader_group_vote +#define GL_ARB_shader_group_vote 1 +#endif /* GL_ARB_shader_group_vote */ + +#ifndef GL_ARB_shader_image_load_store +#define GL_ARB_shader_image_load_store 1 +#endif /* GL_ARB_shader_image_load_store */ + +#ifndef GL_ARB_shader_image_size +#define GL_ARB_shader_image_size 1 +#endif /* GL_ARB_shader_image_size */ + +#ifndef GL_ARB_shader_precision +#define GL_ARB_shader_precision 1 +#endif /* GL_ARB_shader_precision */ + +#ifndef GL_ARB_shader_stencil_export +#define GL_ARB_shader_stencil_export 1 +#endif /* GL_ARB_shader_stencil_export */ + +#ifndef GL_ARB_shader_storage_buffer_object +#define GL_ARB_shader_storage_buffer_object 1 +#endif /* GL_ARB_shader_storage_buffer_object */ + +#ifndef GL_ARB_shader_subroutine +#define GL_ARB_shader_subroutine 1 +#endif /* GL_ARB_shader_subroutine */ + +#ifndef GL_ARB_shader_texture_image_samples +#define GL_ARB_shader_texture_image_samples 1 +#endif /* GL_ARB_shader_texture_image_samples */ + +#ifndef GL_ARB_shader_viewport_layer_array +#define GL_ARB_shader_viewport_layer_array 1 +#endif /* GL_ARB_shader_viewport_layer_array */ + +#ifndef GL_ARB_shading_language_420pack +#define GL_ARB_shading_language_420pack 1 +#endif /* GL_ARB_shading_language_420pack */ + +#ifndef GL_ARB_shading_language_include +#define GL_ARB_shading_language_include 1 +#define GL_SHADER_INCLUDE_ARB 0x8DAE +#define GL_NAMED_STRING_LENGTH_ARB 0x8DE9 +#define GL_NAMED_STRING_TYPE_ARB 0x8DEA +typedef void (APIENTRYP PFNGLNAMEDSTRINGARBPROC) (GLenum type, GLint namelen, const GLchar *name, GLint stringlen, const GLchar *string); +typedef void (APIENTRYP PFNGLDELETENAMEDSTRINGARBPROC) (GLint namelen, const GLchar *name); +typedef void (APIENTRYP PFNGLCOMPILESHADERINCLUDEARBPROC) (GLuint shader, GLsizei count, const GLchar *const*path, const GLint *length); +typedef GLboolean (APIENTRYP PFNGLISNAMEDSTRINGARBPROC) (GLint namelen, const GLchar *name); +typedef void (APIENTRYP PFNGLGETNAMEDSTRINGARBPROC) (GLint namelen, const GLchar *name, GLsizei bufSize, GLint *stringlen, GLchar *string); +typedef void (APIENTRYP PFNGLGETNAMEDSTRINGIVARBPROC) (GLint namelen, const GLchar *name, GLenum pname, GLint *params); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glNamedStringARB (GLenum type, GLint namelen, const GLchar *name, GLint stringlen, const GLchar *string); +GLAPI void APIENTRY glDeleteNamedStringARB (GLint namelen, const GLchar *name); +GLAPI void APIENTRY glCompileShaderIncludeARB (GLuint shader, GLsizei count, const GLchar *const*path, const GLint *length); +GLAPI GLboolean APIENTRY glIsNamedStringARB (GLint namelen, const GLchar *name); +GLAPI void APIENTRY glGetNamedStringARB (GLint namelen, const GLchar *name, GLsizei bufSize, GLint *stringlen, GLchar *string); +GLAPI void APIENTRY glGetNamedStringivARB (GLint namelen, const GLchar *name, GLenum pname, GLint *params); +#endif +#endif /* GL_ARB_shading_language_include */ + +#ifndef GL_ARB_shading_language_packing +#define GL_ARB_shading_language_packing 1 +#endif /* GL_ARB_shading_language_packing */ + +#ifndef GL_ARB_sparse_buffer +#define GL_ARB_sparse_buffer 1 +#define GL_SPARSE_STORAGE_BIT_ARB 0x0400 +#define GL_SPARSE_BUFFER_PAGE_SIZE_ARB 0x82F8 +typedef void (APIENTRYP PFNGLBUFFERPAGECOMMITMENTARBPROC) (GLenum target, GLintptr offset, GLsizeiptr size, GLboolean commit); +typedef void (APIENTRYP PFNGLNAMEDBUFFERPAGECOMMITMENTEXTPROC) (GLuint buffer, GLintptr offset, GLsizeiptr size, GLboolean commit); +typedef void (APIENTRYP PFNGLNAMEDBUFFERPAGECOMMITMENTARBPROC) (GLuint buffer, GLintptr offset, GLsizeiptr size, GLboolean commit); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBufferPageCommitmentARB (GLenum target, GLintptr offset, GLsizeiptr size, GLboolean commit); +GLAPI void APIENTRY glNamedBufferPageCommitmentEXT (GLuint buffer, GLintptr offset, GLsizeiptr size, GLboolean commit); +GLAPI void APIENTRY glNamedBufferPageCommitmentARB (GLuint buffer, GLintptr offset, GLsizeiptr size, GLboolean commit); +#endif +#endif /* GL_ARB_sparse_buffer */ + +#ifndef GL_ARB_sparse_texture +#define GL_ARB_sparse_texture 1 +#define GL_TEXTURE_SPARSE_ARB 0x91A6 +#define GL_VIRTUAL_PAGE_SIZE_INDEX_ARB 0x91A7 +#define GL_NUM_SPARSE_LEVELS_ARB 0x91AA +#define GL_NUM_VIRTUAL_PAGE_SIZES_ARB 0x91A8 +#define GL_VIRTUAL_PAGE_SIZE_X_ARB 0x9195 +#define GL_VIRTUAL_PAGE_SIZE_Y_ARB 0x9196 +#define GL_VIRTUAL_PAGE_SIZE_Z_ARB 0x9197 +#define GL_MAX_SPARSE_TEXTURE_SIZE_ARB 0x9198 +#define GL_MAX_SPARSE_3D_TEXTURE_SIZE_ARB 0x9199 +#define GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS_ARB 0x919A +#define GL_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS_ARB 0x91A9 +typedef void (APIENTRYP PFNGLTEXPAGECOMMITMENTARBPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLboolean commit); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glTexPageCommitmentARB (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLboolean commit); +#endif +#endif /* GL_ARB_sparse_texture */ + +#ifndef GL_ARB_sparse_texture2 +#define GL_ARB_sparse_texture2 1 +#endif /* GL_ARB_sparse_texture2 */ + +#ifndef GL_ARB_sparse_texture_clamp +#define GL_ARB_sparse_texture_clamp 1 +#endif /* GL_ARB_sparse_texture_clamp */ + +#ifndef GL_ARB_spirv_extensions +#define GL_ARB_spirv_extensions 1 +#endif /* GL_ARB_spirv_extensions */ + +#ifndef GL_ARB_stencil_texturing +#define GL_ARB_stencil_texturing 1 +#endif /* GL_ARB_stencil_texturing */ + +#ifndef GL_ARB_sync +#define GL_ARB_sync 1 +#endif /* GL_ARB_sync */ + +#ifndef GL_ARB_tessellation_shader +#define GL_ARB_tessellation_shader 1 +#endif /* GL_ARB_tessellation_shader */ + +#ifndef GL_ARB_texture_barrier +#define GL_ARB_texture_barrier 1 +#endif /* GL_ARB_texture_barrier */ + +#ifndef GL_ARB_texture_border_clamp +#define GL_ARB_texture_border_clamp 1 +#define GL_CLAMP_TO_BORDER_ARB 0x812D +#endif /* GL_ARB_texture_border_clamp */ + +#ifndef GL_ARB_texture_buffer_object +#define GL_ARB_texture_buffer_object 1 +#define GL_TEXTURE_BUFFER_ARB 0x8C2A +#define GL_MAX_TEXTURE_BUFFER_SIZE_ARB 0x8C2B +#define GL_TEXTURE_BINDING_BUFFER_ARB 0x8C2C +#define GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB 0x8C2D +#define GL_TEXTURE_BUFFER_FORMAT_ARB 0x8C2E +typedef void (APIENTRYP PFNGLTEXBUFFERARBPROC) (GLenum target, GLenum internalformat, GLuint buffer); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glTexBufferARB (GLenum target, GLenum internalformat, GLuint buffer); +#endif +#endif /* GL_ARB_texture_buffer_object */ + +#ifndef GL_ARB_texture_buffer_object_rgb32 +#define GL_ARB_texture_buffer_object_rgb32 1 +#endif /* GL_ARB_texture_buffer_object_rgb32 */ + +#ifndef GL_ARB_texture_buffer_range +#define GL_ARB_texture_buffer_range 1 +#endif /* GL_ARB_texture_buffer_range */ + +#ifndef GL_ARB_texture_compression_bptc +#define GL_ARB_texture_compression_bptc 1 +#define GL_COMPRESSED_RGBA_BPTC_UNORM_ARB 0x8E8C +#define GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB 0x8E8D +#define GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB 0x8E8E +#define GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB 0x8E8F +#endif /* GL_ARB_texture_compression_bptc */ + +#ifndef GL_ARB_texture_compression_rgtc +#define GL_ARB_texture_compression_rgtc 1 +#endif /* GL_ARB_texture_compression_rgtc */ + +#ifndef GL_ARB_texture_cube_map_array +#define GL_ARB_texture_cube_map_array 1 +#define GL_TEXTURE_CUBE_MAP_ARRAY_ARB 0x9009 +#define GL_TEXTURE_BINDING_CUBE_MAP_ARRAY_ARB 0x900A +#define GL_PROXY_TEXTURE_CUBE_MAP_ARRAY_ARB 0x900B +#define GL_SAMPLER_CUBE_MAP_ARRAY_ARB 0x900C +#define GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW_ARB 0x900D +#define GL_INT_SAMPLER_CUBE_MAP_ARRAY_ARB 0x900E +#define GL_UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY_ARB 0x900F +#endif /* GL_ARB_texture_cube_map_array */ + +#ifndef GL_ARB_texture_filter_anisotropic +#define GL_ARB_texture_filter_anisotropic 1 +#endif /* GL_ARB_texture_filter_anisotropic */ + +#ifndef GL_ARB_texture_filter_minmax +#define GL_ARB_texture_filter_minmax 1 +#define GL_TEXTURE_REDUCTION_MODE_ARB 0x9366 +#define GL_WEIGHTED_AVERAGE_ARB 0x9367 +#endif /* GL_ARB_texture_filter_minmax */ + +#ifndef GL_ARB_texture_gather +#define GL_ARB_texture_gather 1 +#define GL_MIN_PROGRAM_TEXTURE_GATHER_OFFSET_ARB 0x8E5E +#define GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET_ARB 0x8E5F +#define GL_MAX_PROGRAM_TEXTURE_GATHER_COMPONENTS_ARB 0x8F9F +#endif /* GL_ARB_texture_gather */ + +#ifndef GL_ARB_texture_mirror_clamp_to_edge +#define GL_ARB_texture_mirror_clamp_to_edge 1 +#endif /* GL_ARB_texture_mirror_clamp_to_edge */ + +#ifndef GL_ARB_texture_mirrored_repeat +#define GL_ARB_texture_mirrored_repeat 1 +#define GL_MIRRORED_REPEAT_ARB 0x8370 +#endif /* GL_ARB_texture_mirrored_repeat */ + +#ifndef GL_ARB_texture_multisample +#define GL_ARB_texture_multisample 1 +#endif /* GL_ARB_texture_multisample */ + +#ifndef GL_ARB_texture_non_power_of_two +#define GL_ARB_texture_non_power_of_two 1 +#endif /* GL_ARB_texture_non_power_of_two */ + +#ifndef GL_ARB_texture_query_levels +#define GL_ARB_texture_query_levels 1 +#endif /* GL_ARB_texture_query_levels */ + +#ifndef GL_ARB_texture_query_lod +#define GL_ARB_texture_query_lod 1 +#endif /* GL_ARB_texture_query_lod */ + +#ifndef GL_ARB_texture_rg +#define GL_ARB_texture_rg 1 +#endif /* GL_ARB_texture_rg */ + +#ifndef GL_ARB_texture_rgb10_a2ui +#define GL_ARB_texture_rgb10_a2ui 1 +#endif /* GL_ARB_texture_rgb10_a2ui */ + +#ifndef GL_ARB_texture_stencil8 +#define GL_ARB_texture_stencil8 1 +#endif /* GL_ARB_texture_stencil8 */ + +#ifndef GL_ARB_texture_storage +#define GL_ARB_texture_storage 1 +#endif /* GL_ARB_texture_storage */ + +#ifndef GL_ARB_texture_storage_multisample +#define GL_ARB_texture_storage_multisample 1 +#endif /* GL_ARB_texture_storage_multisample */ + +#ifndef GL_ARB_texture_swizzle +#define GL_ARB_texture_swizzle 1 +#endif /* GL_ARB_texture_swizzle */ + +#ifndef GL_ARB_texture_view +#define GL_ARB_texture_view 1 +#endif /* GL_ARB_texture_view */ + +#ifndef GL_ARB_timer_query +#define GL_ARB_timer_query 1 +#endif /* GL_ARB_timer_query */ + +#ifndef GL_ARB_transform_feedback2 +#define GL_ARB_transform_feedback2 1 +#endif /* GL_ARB_transform_feedback2 */ + +#ifndef GL_ARB_transform_feedback3 +#define GL_ARB_transform_feedback3 1 +#endif /* GL_ARB_transform_feedback3 */ + +#ifndef GL_ARB_transform_feedback_instanced +#define GL_ARB_transform_feedback_instanced 1 +#endif /* GL_ARB_transform_feedback_instanced */ + +#ifndef GL_ARB_transform_feedback_overflow_query +#define GL_ARB_transform_feedback_overflow_query 1 +#define GL_TRANSFORM_FEEDBACK_OVERFLOW_ARB 0x82EC +#define GL_TRANSFORM_FEEDBACK_STREAM_OVERFLOW_ARB 0x82ED +#endif /* GL_ARB_transform_feedback_overflow_query */ + +#ifndef GL_ARB_uniform_buffer_object +#define GL_ARB_uniform_buffer_object 1 +#endif /* GL_ARB_uniform_buffer_object */ + +#ifndef GL_ARB_vertex_array_bgra +#define GL_ARB_vertex_array_bgra 1 +#endif /* GL_ARB_vertex_array_bgra */ + +#ifndef GL_ARB_vertex_array_object +#define GL_ARB_vertex_array_object 1 +#endif /* GL_ARB_vertex_array_object */ + +#ifndef GL_ARB_vertex_attrib_64bit +#define GL_ARB_vertex_attrib_64bit 1 +#endif /* GL_ARB_vertex_attrib_64bit */ + +#ifndef GL_ARB_vertex_attrib_binding +#define GL_ARB_vertex_attrib_binding 1 +#endif /* GL_ARB_vertex_attrib_binding */ + +#ifndef GL_ARB_vertex_type_10f_11f_11f_rev +#define GL_ARB_vertex_type_10f_11f_11f_rev 1 +#endif /* GL_ARB_vertex_type_10f_11f_11f_rev */ + +#ifndef GL_ARB_vertex_type_2_10_10_10_rev +#define GL_ARB_vertex_type_2_10_10_10_rev 1 +#endif /* GL_ARB_vertex_type_2_10_10_10_rev */ + +#ifndef GL_ARB_viewport_array +#define GL_ARB_viewport_array 1 +typedef void (APIENTRYP PFNGLDEPTHRANGEARRAYDVNVPROC) (GLuint first, GLsizei count, const GLdouble *v); +typedef void (APIENTRYP PFNGLDEPTHRANGEINDEXEDDNVPROC) (GLuint index, GLdouble n, GLdouble f); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDepthRangeArraydvNV (GLuint first, GLsizei count, const GLdouble *v); +GLAPI void APIENTRY glDepthRangeIndexeddNV (GLuint index, GLdouble n, GLdouble f); +#endif +#endif /* GL_ARB_viewport_array */ + +#ifndef GL_KHR_blend_equation_advanced +#define GL_KHR_blend_equation_advanced 1 +#define GL_MULTIPLY_KHR 0x9294 +#define GL_SCREEN_KHR 0x9295 +#define GL_OVERLAY_KHR 0x9296 +#define GL_DARKEN_KHR 0x9297 +#define GL_LIGHTEN_KHR 0x9298 +#define GL_COLORDODGE_KHR 0x9299 +#define GL_COLORBURN_KHR 0x929A +#define GL_HARDLIGHT_KHR 0x929B +#define GL_SOFTLIGHT_KHR 0x929C +#define GL_DIFFERENCE_KHR 0x929E +#define GL_EXCLUSION_KHR 0x92A0 +#define GL_HSL_HUE_KHR 0x92AD +#define GL_HSL_SATURATION_KHR 0x92AE +#define GL_HSL_COLOR_KHR 0x92AF +#define GL_HSL_LUMINOSITY_KHR 0x92B0 +typedef void (APIENTRYP PFNGLBLENDBARRIERKHRPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBlendBarrierKHR (void); +#endif +#endif /* GL_KHR_blend_equation_advanced */ + +#ifndef GL_KHR_blend_equation_advanced_coherent +#define GL_KHR_blend_equation_advanced_coherent 1 +#define GL_BLEND_ADVANCED_COHERENT_KHR 0x9285 +#endif /* GL_KHR_blend_equation_advanced_coherent */ + +#ifndef GL_KHR_context_flush_control +#define GL_KHR_context_flush_control 1 +#endif /* GL_KHR_context_flush_control */ + +#ifndef GL_KHR_debug +#define GL_KHR_debug 1 +#endif /* GL_KHR_debug */ + +#ifndef GL_KHR_no_error +#define GL_KHR_no_error 1 +#define GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR 0x00000008 +#endif /* GL_KHR_no_error */ + +#ifndef GL_KHR_parallel_shader_compile +#define GL_KHR_parallel_shader_compile 1 +#define GL_MAX_SHADER_COMPILER_THREADS_KHR 0x91B0 +#define GL_COMPLETION_STATUS_KHR 0x91B1 +typedef void (APIENTRYP PFNGLMAXSHADERCOMPILERTHREADSKHRPROC) (GLuint count); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMaxShaderCompilerThreadsKHR (GLuint count); +#endif +#endif /* GL_KHR_parallel_shader_compile */ + +#ifndef GL_KHR_robust_buffer_access_behavior +#define GL_KHR_robust_buffer_access_behavior 1 +#endif /* GL_KHR_robust_buffer_access_behavior */ + +#ifndef GL_KHR_robustness +#define GL_KHR_robustness 1 +#define GL_CONTEXT_ROBUST_ACCESS 0x90F3 +#endif /* GL_KHR_robustness */ + +#ifndef GL_KHR_shader_subgroup +#define GL_KHR_shader_subgroup 1 +#define GL_SUBGROUP_SIZE_KHR 0x9532 +#define GL_SUBGROUP_SUPPORTED_STAGES_KHR 0x9533 +#define GL_SUBGROUP_SUPPORTED_FEATURES_KHR 0x9534 +#define GL_SUBGROUP_QUAD_ALL_STAGES_KHR 0x9535 +#define GL_SUBGROUP_FEATURE_BASIC_BIT_KHR 0x00000001 +#define GL_SUBGROUP_FEATURE_VOTE_BIT_KHR 0x00000002 +#define GL_SUBGROUP_FEATURE_ARITHMETIC_BIT_KHR 0x00000004 +#define GL_SUBGROUP_FEATURE_BALLOT_BIT_KHR 0x00000008 +#define GL_SUBGROUP_FEATURE_SHUFFLE_BIT_KHR 0x00000010 +#define GL_SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT_KHR 0x00000020 +#define GL_SUBGROUP_FEATURE_CLUSTERED_BIT_KHR 0x00000040 +#define GL_SUBGROUP_FEATURE_QUAD_BIT_KHR 0x00000080 +#endif /* GL_KHR_shader_subgroup */ + +#ifndef GL_KHR_texture_compression_astc_hdr +#define GL_KHR_texture_compression_astc_hdr 1 +#define GL_COMPRESSED_RGBA_ASTC_4x4_KHR 0x93B0 +#define GL_COMPRESSED_RGBA_ASTC_5x4_KHR 0x93B1 +#define GL_COMPRESSED_RGBA_ASTC_5x5_KHR 0x93B2 +#define GL_COMPRESSED_RGBA_ASTC_6x5_KHR 0x93B3 +#define GL_COMPRESSED_RGBA_ASTC_6x6_KHR 0x93B4 +#define GL_COMPRESSED_RGBA_ASTC_8x5_KHR 0x93B5 +#define GL_COMPRESSED_RGBA_ASTC_8x6_KHR 0x93B6 +#define GL_COMPRESSED_RGBA_ASTC_8x8_KHR 0x93B7 +#define GL_COMPRESSED_RGBA_ASTC_10x5_KHR 0x93B8 +#define GL_COMPRESSED_RGBA_ASTC_10x6_KHR 0x93B9 +#define GL_COMPRESSED_RGBA_ASTC_10x8_KHR 0x93BA +#define GL_COMPRESSED_RGBA_ASTC_10x10_KHR 0x93BB +#define GL_COMPRESSED_RGBA_ASTC_12x10_KHR 0x93BC +#define GL_COMPRESSED_RGBA_ASTC_12x12_KHR 0x93BD +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR 0x93D0 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR 0x93D1 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR 0x93D2 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR 0x93D3 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR 0x93D4 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR 0x93D5 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR 0x93D6 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR 0x93D7 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR 0x93D8 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR 0x93D9 +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR 0x93DA +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR 0x93DB +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR 0x93DC +#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR 0x93DD +#endif /* GL_KHR_texture_compression_astc_hdr */ + +#ifndef GL_KHR_texture_compression_astc_ldr +#define GL_KHR_texture_compression_astc_ldr 1 +#endif /* GL_KHR_texture_compression_astc_ldr */ + +#ifndef GL_KHR_texture_compression_astc_sliced_3d +#define GL_KHR_texture_compression_astc_sliced_3d 1 +#endif /* GL_KHR_texture_compression_astc_sliced_3d */ + +#ifndef GL_AMD_framebuffer_multisample_advanced +#define GL_AMD_framebuffer_multisample_advanced 1 +#define GL_RENDERBUFFER_STORAGE_SAMPLES_AMD 0x91B2 +#define GL_MAX_COLOR_FRAMEBUFFER_SAMPLES_AMD 0x91B3 +#define GL_MAX_COLOR_FRAMEBUFFER_STORAGE_SAMPLES_AMD 0x91B4 +#define GL_MAX_DEPTH_STENCIL_FRAMEBUFFER_SAMPLES_AMD 0x91B5 +#define GL_NUM_SUPPORTED_MULTISAMPLE_MODES_AMD 0x91B6 +#define GL_SUPPORTED_MULTISAMPLE_MODES_AMD 0x91B7 +typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEADVANCEDAMDPROC) (GLenum target, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEADVANCEDAMDPROC) (GLuint renderbuffer, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glRenderbufferStorageMultisampleAdvancedAMD (GLenum target, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glNamedRenderbufferStorageMultisampleAdvancedAMD (GLuint renderbuffer, GLsizei samples, GLsizei storageSamples, GLenum internalformat, GLsizei width, GLsizei height); +#endif +#endif /* GL_AMD_framebuffer_multisample_advanced */ + +#ifndef GL_AMD_performance_monitor +#define GL_AMD_performance_monitor 1 +#define GL_COUNTER_TYPE_AMD 0x8BC0 +#define GL_COUNTER_RANGE_AMD 0x8BC1 +#define GL_UNSIGNED_INT64_AMD 0x8BC2 +#define GL_PERCENTAGE_AMD 0x8BC3 +#define GL_PERFMON_RESULT_AVAILABLE_AMD 0x8BC4 +#define GL_PERFMON_RESULT_SIZE_AMD 0x8BC5 +#define GL_PERFMON_RESULT_AMD 0x8BC6 +typedef void (APIENTRYP PFNGLGETPERFMONITORGROUPSAMDPROC) (GLint *numGroups, GLsizei groupsSize, GLuint *groups); +typedef void (APIENTRYP PFNGLGETPERFMONITORCOUNTERSAMDPROC) (GLuint group, GLint *numCounters, GLint *maxActiveCounters, GLsizei counterSize, GLuint *counters); +typedef void (APIENTRYP PFNGLGETPERFMONITORGROUPSTRINGAMDPROC) (GLuint group, GLsizei bufSize, GLsizei *length, GLchar *groupString); +typedef void (APIENTRYP PFNGLGETPERFMONITORCOUNTERSTRINGAMDPROC) (GLuint group, GLuint counter, GLsizei bufSize, GLsizei *length, GLchar *counterString); +typedef void (APIENTRYP PFNGLGETPERFMONITORCOUNTERINFOAMDPROC) (GLuint group, GLuint counter, GLenum pname, void *data); +typedef void (APIENTRYP PFNGLGENPERFMONITORSAMDPROC) (GLsizei n, GLuint *monitors); +typedef void (APIENTRYP PFNGLDELETEPERFMONITORSAMDPROC) (GLsizei n, GLuint *monitors); +typedef void (APIENTRYP PFNGLSELECTPERFMONITORCOUNTERSAMDPROC) (GLuint monitor, GLboolean enable, GLuint group, GLint numCounters, GLuint *counterList); +typedef void (APIENTRYP PFNGLBEGINPERFMONITORAMDPROC) (GLuint monitor); +typedef void (APIENTRYP PFNGLENDPERFMONITORAMDPROC) (GLuint monitor); +typedef void (APIENTRYP PFNGLGETPERFMONITORCOUNTERDATAAMDPROC) (GLuint monitor, GLenum pname, GLsizei dataSize, GLuint *data, GLint *bytesWritten); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glGetPerfMonitorGroupsAMD (GLint *numGroups, GLsizei groupsSize, GLuint *groups); +GLAPI void APIENTRY glGetPerfMonitorCountersAMD (GLuint group, GLint *numCounters, GLint *maxActiveCounters, GLsizei counterSize, GLuint *counters); +GLAPI void APIENTRY glGetPerfMonitorGroupStringAMD (GLuint group, GLsizei bufSize, GLsizei *length, GLchar *groupString); +GLAPI void APIENTRY glGetPerfMonitorCounterStringAMD (GLuint group, GLuint counter, GLsizei bufSize, GLsizei *length, GLchar *counterString); +GLAPI void APIENTRY glGetPerfMonitorCounterInfoAMD (GLuint group, GLuint counter, GLenum pname, void *data); +GLAPI void APIENTRY glGenPerfMonitorsAMD (GLsizei n, GLuint *monitors); +GLAPI void APIENTRY glDeletePerfMonitorsAMD (GLsizei n, GLuint *monitors); +GLAPI void APIENTRY glSelectPerfMonitorCountersAMD (GLuint monitor, GLboolean enable, GLuint group, GLint numCounters, GLuint *counterList); +GLAPI void APIENTRY glBeginPerfMonitorAMD (GLuint monitor); +GLAPI void APIENTRY glEndPerfMonitorAMD (GLuint monitor); +GLAPI void APIENTRY glGetPerfMonitorCounterDataAMD (GLuint monitor, GLenum pname, GLsizei dataSize, GLuint *data, GLint *bytesWritten); +#endif +#endif /* GL_AMD_performance_monitor */ + +#ifndef GL_APPLE_rgb_422 +#define GL_APPLE_rgb_422 1 +#define GL_RGB_422_APPLE 0x8A1F +#define GL_UNSIGNED_SHORT_8_8_APPLE 0x85BA +#define GL_UNSIGNED_SHORT_8_8_REV_APPLE 0x85BB +#define GL_RGB_RAW_422_APPLE 0x8A51 +#endif /* GL_APPLE_rgb_422 */ + +#ifndef GL_EXT_EGL_image_storage +#define GL_EXT_EGL_image_storage 1 +typedef void *GLeglImageOES; +typedef void (APIENTRYP PFNGLEGLIMAGETARGETTEXSTORAGEEXTPROC) (GLenum target, GLeglImageOES image, const GLint* attrib_list); +typedef void (APIENTRYP PFNGLEGLIMAGETARGETTEXTURESTORAGEEXTPROC) (GLuint texture, GLeglImageOES image, const GLint* attrib_list); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glEGLImageTargetTexStorageEXT (GLenum target, GLeglImageOES image, const GLint* attrib_list); +GLAPI void APIENTRY glEGLImageTargetTextureStorageEXT (GLuint texture, GLeglImageOES image, const GLint* attrib_list); +#endif +#endif /* GL_EXT_EGL_image_storage */ + +#ifndef GL_EXT_EGL_sync +#define GL_EXT_EGL_sync 1 +#endif /* GL_EXT_EGL_sync */ + +#ifndef GL_EXT_debug_label +#define GL_EXT_debug_label 1 +#define GL_PROGRAM_PIPELINE_OBJECT_EXT 0x8A4F +#define GL_PROGRAM_OBJECT_EXT 0x8B40 +#define GL_SHADER_OBJECT_EXT 0x8B48 +#define GL_BUFFER_OBJECT_EXT 0x9151 +#define GL_QUERY_OBJECT_EXT 0x9153 +#define GL_VERTEX_ARRAY_OBJECT_EXT 0x9154 +typedef void (APIENTRYP PFNGLLABELOBJECTEXTPROC) (GLenum type, GLuint object, GLsizei length, const GLchar *label); +typedef void (APIENTRYP PFNGLGETOBJECTLABELEXTPROC) (GLenum type, GLuint object, GLsizei bufSize, GLsizei *length, GLchar *label); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glLabelObjectEXT (GLenum type, GLuint object, GLsizei length, const GLchar *label); +GLAPI void APIENTRY glGetObjectLabelEXT (GLenum type, GLuint object, GLsizei bufSize, GLsizei *length, GLchar *label); +#endif +#endif /* GL_EXT_debug_label */ + +#ifndef GL_EXT_debug_marker +#define GL_EXT_debug_marker 1 +typedef void (APIENTRYP PFNGLINSERTEVENTMARKEREXTPROC) (GLsizei length, const GLchar *marker); +typedef void (APIENTRYP PFNGLPUSHGROUPMARKEREXTPROC) (GLsizei length, const GLchar *marker); +typedef void (APIENTRYP PFNGLPOPGROUPMARKEREXTPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glInsertEventMarkerEXT (GLsizei length, const GLchar *marker); +GLAPI void APIENTRY glPushGroupMarkerEXT (GLsizei length, const GLchar *marker); +GLAPI void APIENTRY glPopGroupMarkerEXT (void); +#endif +#endif /* GL_EXT_debug_marker */ + +#ifndef GL_EXT_direct_state_access +#define GL_EXT_direct_state_access 1 +#define GL_PROGRAM_MATRIX_EXT 0x8E2D +#define GL_TRANSPOSE_PROGRAM_MATRIX_EXT 0x8E2E +#define GL_PROGRAM_MATRIX_STACK_DEPTH_EXT 0x8E2F +typedef void (APIENTRYP PFNGLMATRIXLOADFEXTPROC) (GLenum mode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXLOADDEXTPROC) (GLenum mode, const GLdouble *m); +typedef void (APIENTRYP PFNGLMATRIXMULTFEXTPROC) (GLenum mode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXMULTDEXTPROC) (GLenum mode, const GLdouble *m); +typedef void (APIENTRYP PFNGLMATRIXLOADIDENTITYEXTPROC) (GLenum mode); +typedef void (APIENTRYP PFNGLMATRIXROTATEFEXTPROC) (GLenum mode, GLfloat angle, GLfloat x, GLfloat y, GLfloat z); +typedef void (APIENTRYP PFNGLMATRIXROTATEDEXTPROC) (GLenum mode, GLdouble angle, GLdouble x, GLdouble y, GLdouble z); +typedef void (APIENTRYP PFNGLMATRIXSCALEFEXTPROC) (GLenum mode, GLfloat x, GLfloat y, GLfloat z); +typedef void (APIENTRYP PFNGLMATRIXSCALEDEXTPROC) (GLenum mode, GLdouble x, GLdouble y, GLdouble z); +typedef void (APIENTRYP PFNGLMATRIXTRANSLATEFEXTPROC) (GLenum mode, GLfloat x, GLfloat y, GLfloat z); +typedef void (APIENTRYP PFNGLMATRIXTRANSLATEDEXTPROC) (GLenum mode, GLdouble x, GLdouble y, GLdouble z); +typedef void (APIENTRYP PFNGLMATRIXFRUSTUMEXTPROC) (GLenum mode, GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar); +typedef void (APIENTRYP PFNGLMATRIXORTHOEXTPROC) (GLenum mode, GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar); +typedef void (APIENTRYP PFNGLMATRIXPOPEXTPROC) (GLenum mode); +typedef void (APIENTRYP PFNGLMATRIXPUSHEXTPROC) (GLenum mode); +typedef void (APIENTRYP PFNGLCLIENTATTRIBDEFAULTEXTPROC) (GLbitfield mask); +typedef void (APIENTRYP PFNGLPUSHCLIENTATTRIBDEFAULTEXTPROC) (GLbitfield mask); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERFEXTPROC) (GLuint texture, GLenum target, GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERFVEXTPROC) (GLuint texture, GLenum target, GLenum pname, const GLfloat *params); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIEXTPROC) (GLuint texture, GLenum target, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIVEXTPROC) (GLuint texture, GLenum target, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLTEXTUREIMAGE1DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXTUREIMAGE2DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE1DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE2DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLCOPYTEXTUREIMAGE1DEXTPROC) (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border); +typedef void (APIENTRYP PFNGLCOPYTEXTUREIMAGE2DEXTPROC) (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); +typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE1DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE2DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLGETTEXTUREIMAGEEXTPROC) (GLuint texture, GLenum target, GLint level, GLenum format, GLenum type, void *pixels); +typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERFVEXTPROC) (GLuint texture, GLenum target, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIVEXTPROC) (GLuint texture, GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETTEXTURELEVELPARAMETERFVEXTPROC) (GLuint texture, GLenum target, GLint level, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETTEXTURELEVELPARAMETERIVEXTPROC) (GLuint texture, GLenum target, GLint level, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLTEXTUREIMAGE3DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE3DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE3DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLBINDMULTITEXTUREEXTPROC) (GLenum texunit, GLenum target, GLuint texture); +typedef void (APIENTRYP PFNGLMULTITEXCOORDPOINTEREXTPROC) (GLenum texunit, GLint size, GLenum type, GLsizei stride, const void *pointer); +typedef void (APIENTRYP PFNGLMULTITEXENVFEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLMULTITEXENVFVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, const GLfloat *params); +typedef void (APIENTRYP PFNGLMULTITEXENVIEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLMULTITEXENVIVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLMULTITEXGENDEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, GLdouble param); +typedef void (APIENTRYP PFNGLMULTITEXGENDVEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, const GLdouble *params); +typedef void (APIENTRYP PFNGLMULTITEXGENFEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLMULTITEXGENFVEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, const GLfloat *params); +typedef void (APIENTRYP PFNGLMULTITEXGENIEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLMULTITEXGENIVEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLGETMULTITEXENVFVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETMULTITEXENVIVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETMULTITEXGENDVEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, GLdouble *params); +typedef void (APIENTRYP PFNGLGETMULTITEXGENFVEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETMULTITEXGENIVEXTPROC) (GLenum texunit, GLenum coord, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLMULTITEXPARAMETERIEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLMULTITEXPARAMETERIVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLMULTITEXPARAMETERFEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLfloat param); +typedef void (APIENTRYP PFNGLMULTITEXPARAMETERFVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, const GLfloat *params); +typedef void (APIENTRYP PFNGLMULTITEXIMAGE1DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLMULTITEXIMAGE2DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLMULTITEXSUBIMAGE1DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLMULTITEXSUBIMAGE2DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLCOPYMULTITEXIMAGE1DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border); +typedef void (APIENTRYP PFNGLCOPYMULTITEXIMAGE2DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); +typedef void (APIENTRYP PFNGLCOPYMULTITEXSUBIMAGE1DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +typedef void (APIENTRYP PFNGLCOPYMULTITEXSUBIMAGE2DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLGETMULTITEXIMAGEEXTPROC) (GLenum texunit, GLenum target, GLint level, GLenum format, GLenum type, void *pixels); +typedef void (APIENTRYP PFNGLGETMULTITEXPARAMETERFVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETMULTITEXPARAMETERIVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETMULTITEXLEVELPARAMETERFVEXTPROC) (GLenum texunit, GLenum target, GLint level, GLenum pname, GLfloat *params); +typedef void (APIENTRYP PFNGLGETMULTITEXLEVELPARAMETERIVEXTPROC) (GLenum texunit, GLenum target, GLint level, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLMULTITEXIMAGE3DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLMULTITEXSUBIMAGE3DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); +typedef void (APIENTRYP PFNGLCOPYMULTITEXSUBIMAGE3DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLENABLECLIENTSTATEINDEXEDEXTPROC) (GLenum array, GLuint index); +typedef void (APIENTRYP PFNGLDISABLECLIENTSTATEINDEXEDEXTPROC) (GLenum array, GLuint index); +typedef void (APIENTRYP PFNGLGETFLOATINDEXEDVEXTPROC) (GLenum target, GLuint index, GLfloat *data); +typedef void (APIENTRYP PFNGLGETDOUBLEINDEXEDVEXTPROC) (GLenum target, GLuint index, GLdouble *data); +typedef void (APIENTRYP PFNGLGETPOINTERINDEXEDVEXTPROC) (GLenum target, GLuint index, void **data); +typedef void (APIENTRYP PFNGLENABLEINDEXEDEXTPROC) (GLenum target, GLuint index); +typedef void (APIENTRYP PFNGLDISABLEINDEXEDEXTPROC) (GLenum target, GLuint index); +typedef GLboolean (APIENTRYP PFNGLISENABLEDINDEXEDEXTPROC) (GLenum target, GLuint index); +typedef void (APIENTRYP PFNGLGETINTEGERINDEXEDVEXTPROC) (GLenum target, GLuint index, GLint *data); +typedef void (APIENTRYP PFNGLGETBOOLEANINDEXEDVEXTPROC) (GLenum target, GLuint index, GLboolean *data); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTUREIMAGE3DEXTPROC) (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTUREIMAGE2DEXTPROC) (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTUREIMAGE1DEXTPROC) (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE3DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE2DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE1DEXTPROC) (GLuint texture, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXTUREIMAGEEXTPROC) (GLuint texture, GLenum target, GLint lod, void *img); +typedef void (APIENTRYP PFNGLCOMPRESSEDMULTITEXIMAGE3DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDMULTITEXIMAGE2DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDMULTITEXIMAGE1DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDMULTITEXSUBIMAGE3DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDMULTITEXSUBIMAGE2DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLCOMPRESSEDMULTITEXSUBIMAGE1DEXTPROC) (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *bits); +typedef void (APIENTRYP PFNGLGETCOMPRESSEDMULTITEXIMAGEEXTPROC) (GLenum texunit, GLenum target, GLint lod, void *img); +typedef void (APIENTRYP PFNGLMATRIXLOADTRANSPOSEFEXTPROC) (GLenum mode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXLOADTRANSPOSEDEXTPROC) (GLenum mode, const GLdouble *m); +typedef void (APIENTRYP PFNGLMATRIXMULTTRANSPOSEFEXTPROC) (GLenum mode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXMULTTRANSPOSEDEXTPROC) (GLenum mode, const GLdouble *m); +typedef void (APIENTRYP PFNGLNAMEDBUFFERDATAEXTPROC) (GLuint buffer, GLsizeiptr size, const void *data, GLenum usage); +typedef void (APIENTRYP PFNGLNAMEDBUFFERSUBDATAEXTPROC) (GLuint buffer, GLintptr offset, GLsizeiptr size, const void *data); +typedef void *(APIENTRYP PFNGLMAPNAMEDBUFFEREXTPROC) (GLuint buffer, GLenum access); +typedef GLboolean (APIENTRYP PFNGLUNMAPNAMEDBUFFEREXTPROC) (GLuint buffer); +typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPARAMETERIVEXTPROC) (GLuint buffer, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPOINTERVEXTPROC) (GLuint buffer, GLenum pname, void **params); +typedef void (APIENTRYP PFNGLGETNAMEDBUFFERSUBDATAEXTPROC) (GLuint buffer, GLintptr offset, GLsizeiptr size, void *data); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1FEXTPROC) (GLuint program, GLint location, GLfloat v0); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2FEXTPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3FEXTPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4FEXTPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1IEXTPROC) (GLuint program, GLint location, GLint v0); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2IEXTPROC) (GLuint program, GLint location, GLint v0, GLint v1); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3IEXTPROC) (GLuint program, GLint location, GLint v0, GLint v1, GLint v2); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4IEXTPROC) (GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1FVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2FVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3FVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4FVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1IVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2IVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3IVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4IVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +typedef void (APIENTRYP PFNGLTEXTUREBUFFEREXTPROC) (GLuint texture, GLenum target, GLenum internalformat, GLuint buffer); +typedef void (APIENTRYP PFNGLMULTITEXBUFFEREXTPROC) (GLenum texunit, GLenum target, GLenum internalformat, GLuint buffer); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIIVEXTPROC) (GLuint texture, GLenum target, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIUIVEXTPROC) (GLuint texture, GLenum target, GLenum pname, const GLuint *params); +typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIIVEXTPROC) (GLuint texture, GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIUIVEXTPROC) (GLuint texture, GLenum target, GLenum pname, GLuint *params); +typedef void (APIENTRYP PFNGLMULTITEXPARAMETERIIVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, const GLint *params); +typedef void (APIENTRYP PFNGLMULTITEXPARAMETERIUIVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, const GLuint *params); +typedef void (APIENTRYP PFNGLGETMULTITEXPARAMETERIIVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETMULTITEXPARAMETERIUIVEXTPROC) (GLenum texunit, GLenum target, GLenum pname, GLuint *params); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UIEXTPROC) (GLuint program, GLint location, GLuint v0); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UIEXTPROC) (GLuint program, GLint location, GLuint v0, GLuint v1); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UIEXTPROC) (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UIEXTPROC) (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UIVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UIVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UIVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UIVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETERS4FVEXTPROC) (GLuint program, GLenum target, GLuint index, GLsizei count, const GLfloat *params); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETERI4IEXTPROC) (GLuint program, GLenum target, GLuint index, GLint x, GLint y, GLint z, GLint w); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETERI4IVEXTPROC) (GLuint program, GLenum target, GLuint index, const GLint *params); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETERSI4IVEXTPROC) (GLuint program, GLenum target, GLuint index, GLsizei count, const GLint *params); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETERI4UIEXTPROC) (GLuint program, GLenum target, GLuint index, GLuint x, GLuint y, GLuint z, GLuint w); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETERI4UIVEXTPROC) (GLuint program, GLenum target, GLuint index, const GLuint *params); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETERSI4UIVEXTPROC) (GLuint program, GLenum target, GLuint index, GLsizei count, const GLuint *params); +typedef void (APIENTRYP PFNGLGETNAMEDPROGRAMLOCALPARAMETERIIVEXTPROC) (GLuint program, GLenum target, GLuint index, GLint *params); +typedef void (APIENTRYP PFNGLGETNAMEDPROGRAMLOCALPARAMETERIUIVEXTPROC) (GLuint program, GLenum target, GLuint index, GLuint *params); +typedef void (APIENTRYP PFNGLENABLECLIENTSTATEIEXTPROC) (GLenum array, GLuint index); +typedef void (APIENTRYP PFNGLDISABLECLIENTSTATEIEXTPROC) (GLenum array, GLuint index); +typedef void (APIENTRYP PFNGLGETFLOATI_VEXTPROC) (GLenum pname, GLuint index, GLfloat *params); +typedef void (APIENTRYP PFNGLGETDOUBLEI_VEXTPROC) (GLenum pname, GLuint index, GLdouble *params); +typedef void (APIENTRYP PFNGLGETPOINTERI_VEXTPROC) (GLenum pname, GLuint index, void **params); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMSTRINGEXTPROC) (GLuint program, GLenum target, GLenum format, GLsizei len, const void *string); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETER4DEXTPROC) (GLuint program, GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETER4DVEXTPROC) (GLuint program, GLenum target, GLuint index, const GLdouble *params); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETER4FEXTPROC) (GLuint program, GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); +typedef void (APIENTRYP PFNGLNAMEDPROGRAMLOCALPARAMETER4FVEXTPROC) (GLuint program, GLenum target, GLuint index, const GLfloat *params); +typedef void (APIENTRYP PFNGLGETNAMEDPROGRAMLOCALPARAMETERDVEXTPROC) (GLuint program, GLenum target, GLuint index, GLdouble *params); +typedef void (APIENTRYP PFNGLGETNAMEDPROGRAMLOCALPARAMETERFVEXTPROC) (GLuint program, GLenum target, GLuint index, GLfloat *params); +typedef void (APIENTRYP PFNGLGETNAMEDPROGRAMIVEXTPROC) (GLuint program, GLenum target, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGETNAMEDPROGRAMSTRINGEXTPROC) (GLuint program, GLenum target, GLenum pname, void *string); +typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEEXTPROC) (GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLGETNAMEDRENDERBUFFERPARAMETERIVEXTPROC) (GLuint renderbuffer, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC) (GLuint renderbuffer, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLECOVERAGEEXTPROC) (GLuint renderbuffer, GLsizei coverageSamples, GLsizei colorSamples, GLenum internalformat, GLsizei width, GLsizei height); +typedef GLenum (APIENTRYP PFNGLCHECKNAMEDFRAMEBUFFERSTATUSEXTPROC) (GLuint framebuffer, GLenum target); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTURE1DEXTPROC) (GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTURE2DEXTPROC) (GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTURE3DEXTPROC) (GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERRENDERBUFFEREXTPROC) (GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); +typedef void (APIENTRYP PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC) (GLuint framebuffer, GLenum attachment, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLGENERATETEXTUREMIPMAPEXTPROC) (GLuint texture, GLenum target); +typedef void (APIENTRYP PFNGLGENERATEMULTITEXMIPMAPEXTPROC) (GLenum texunit, GLenum target); +typedef void (APIENTRYP PFNGLFRAMEBUFFERDRAWBUFFEREXTPROC) (GLuint framebuffer, GLenum mode); +typedef void (APIENTRYP PFNGLFRAMEBUFFERDRAWBUFFERSEXTPROC) (GLuint framebuffer, GLsizei n, const GLenum *bufs); +typedef void (APIENTRYP PFNGLFRAMEBUFFERREADBUFFEREXTPROC) (GLuint framebuffer, GLenum mode); +typedef void (APIENTRYP PFNGLGETFRAMEBUFFERPARAMETERIVEXTPROC) (GLuint framebuffer, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLNAMEDCOPYBUFFERSUBDATAEXTPROC) (GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTUREEXTPROC) (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTURELAYEREXTPROC) (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLint layer); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTUREFACEEXTPROC) (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLenum face); +typedef void (APIENTRYP PFNGLTEXTURERENDERBUFFEREXTPROC) (GLuint texture, GLenum target, GLuint renderbuffer); +typedef void (APIENTRYP PFNGLMULTITEXRENDERBUFFEREXTPROC) (GLenum texunit, GLenum target, GLuint renderbuffer); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLint size, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYCOLOROFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLint size, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYEDGEFLAGOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYINDEXOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYNORMALOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYTEXCOORDOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLint size, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYMULTITEXCOORDOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLenum texunit, GLint size, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYFOGCOORDOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYSECONDARYCOLOROFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLint size, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXATTRIBOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXATTRIBIOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLuint index, GLint size, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLENABLEVERTEXARRAYEXTPROC) (GLuint vaobj, GLenum array); +typedef void (APIENTRYP PFNGLDISABLEVERTEXARRAYEXTPROC) (GLuint vaobj, GLenum array); +typedef void (APIENTRYP PFNGLENABLEVERTEXARRAYATTRIBEXTPROC) (GLuint vaobj, GLuint index); +typedef void (APIENTRYP PFNGLDISABLEVERTEXARRAYATTRIBEXTPROC) (GLuint vaobj, GLuint index); +typedef void (APIENTRYP PFNGLGETVERTEXARRAYINTEGERVEXTPROC) (GLuint vaobj, GLenum pname, GLint *param); +typedef void (APIENTRYP PFNGLGETVERTEXARRAYPOINTERVEXTPROC) (GLuint vaobj, GLenum pname, void **param); +typedef void (APIENTRYP PFNGLGETVERTEXARRAYINTEGERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint *param); +typedef void (APIENTRYP PFNGLGETVERTEXARRAYPOINTERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, void **param); +typedef void *(APIENTRYP PFNGLMAPNAMEDBUFFERRANGEEXTPROC) (GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access); +typedef void (APIENTRYP PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEEXTPROC) (GLuint buffer, GLintptr offset, GLsizeiptr length); +typedef void (APIENTRYP PFNGLNAMEDBUFFERSTORAGEEXTPROC) (GLuint buffer, GLsizeiptr size, const void *data, GLbitfield flags); +typedef void (APIENTRYP PFNGLCLEARNAMEDBUFFERDATAEXTPROC) (GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void *data); +typedef void (APIENTRYP PFNGLCLEARNAMEDBUFFERSUBDATAEXTPROC) (GLuint buffer, GLenum internalformat, GLsizeiptr offset, GLsizeiptr size, GLenum format, GLenum type, const void *data); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERPARAMETERIEXTPROC) (GLuint framebuffer, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVEXTPROC) (GLuint framebuffer, GLenum pname, GLint *params); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1DEXTPROC) (GLuint program, GLint location, GLdouble x); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2DEXTPROC) (GLuint program, GLint location, GLdouble x, GLdouble y); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3DEXTPROC) (GLuint program, GLint location, GLdouble x, GLdouble y, GLdouble z); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4DEXTPROC) (GLuint program, GLint location, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1DVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2DVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3DVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4DVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3DVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +typedef void (APIENTRYP PFNGLTEXTUREBUFFERRANGEEXTPROC) (GLuint texture, GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE1DEXTPROC) (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE2DEXTPROC) (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE3DEXTPROC) (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE2DMULTISAMPLEEXTPROC) (GLuint texture, GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations); +typedef void (APIENTRYP PFNGLTEXTURESTORAGE3DMULTISAMPLEEXTPROC) (GLuint texture, GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); +typedef void (APIENTRYP PFNGLVERTEXARRAYBINDVERTEXBUFFEREXTPROC) (GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXATTRIBFORMATEXTPROC) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXATTRIBIFORMATEXTPROC) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXATTRIBLFORMATEXTPROC) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXATTRIBBINDINGEXTPROC) (GLuint vaobj, GLuint attribindex, GLuint bindingindex); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXBINDINGDIVISOREXTPROC) (GLuint vaobj, GLuint bindingindex, GLuint divisor); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXATTRIBLOFFSETEXTPROC) (GLuint vaobj, GLuint buffer, GLuint index, GLint size, GLenum type, GLsizei stride, GLintptr offset); +typedef void (APIENTRYP PFNGLTEXTUREPAGECOMMITMENTEXTPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLboolean commit); +typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXATTRIBDIVISOREXTPROC) (GLuint vaobj, GLuint index, GLuint divisor); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMatrixLoadfEXT (GLenum mode, const GLfloat *m); +GLAPI void APIENTRY glMatrixLoaddEXT (GLenum mode, const GLdouble *m); +GLAPI void APIENTRY glMatrixMultfEXT (GLenum mode, const GLfloat *m); +GLAPI void APIENTRY glMatrixMultdEXT (GLenum mode, const GLdouble *m); +GLAPI void APIENTRY glMatrixLoadIdentityEXT (GLenum mode); +GLAPI void APIENTRY glMatrixRotatefEXT (GLenum mode, GLfloat angle, GLfloat x, GLfloat y, GLfloat z); +GLAPI void APIENTRY glMatrixRotatedEXT (GLenum mode, GLdouble angle, GLdouble x, GLdouble y, GLdouble z); +GLAPI void APIENTRY glMatrixScalefEXT (GLenum mode, GLfloat x, GLfloat y, GLfloat z); +GLAPI void APIENTRY glMatrixScaledEXT (GLenum mode, GLdouble x, GLdouble y, GLdouble z); +GLAPI void APIENTRY glMatrixTranslatefEXT (GLenum mode, GLfloat x, GLfloat y, GLfloat z); +GLAPI void APIENTRY glMatrixTranslatedEXT (GLenum mode, GLdouble x, GLdouble y, GLdouble z); +GLAPI void APIENTRY glMatrixFrustumEXT (GLenum mode, GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar); +GLAPI void APIENTRY glMatrixOrthoEXT (GLenum mode, GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar); +GLAPI void APIENTRY glMatrixPopEXT (GLenum mode); +GLAPI void APIENTRY glMatrixPushEXT (GLenum mode); +GLAPI void APIENTRY glClientAttribDefaultEXT (GLbitfield mask); +GLAPI void APIENTRY glPushClientAttribDefaultEXT (GLbitfield mask); +GLAPI void APIENTRY glTextureParameterfEXT (GLuint texture, GLenum target, GLenum pname, GLfloat param); +GLAPI void APIENTRY glTextureParameterfvEXT (GLuint texture, GLenum target, GLenum pname, const GLfloat *params); +GLAPI void APIENTRY glTextureParameteriEXT (GLuint texture, GLenum target, GLenum pname, GLint param); +GLAPI void APIENTRY glTextureParameterivEXT (GLuint texture, GLenum target, GLenum pname, const GLint *params); +GLAPI void APIENTRY glTextureImage1DEXT (GLuint texture, GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTextureImage2DEXT (GLuint texture, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTextureSubImage1DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTextureSubImage2DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glCopyTextureImage1DEXT (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border); +GLAPI void APIENTRY glCopyTextureImage2DEXT (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); +GLAPI void APIENTRY glCopyTextureSubImage1DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +GLAPI void APIENTRY glCopyTextureSubImage2DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glGetTextureImageEXT (GLuint texture, GLenum target, GLint level, GLenum format, GLenum type, void *pixels); +GLAPI void APIENTRY glGetTextureParameterfvEXT (GLuint texture, GLenum target, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetTextureParameterivEXT (GLuint texture, GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetTextureLevelParameterfvEXT (GLuint texture, GLenum target, GLint level, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetTextureLevelParameterivEXT (GLuint texture, GLenum target, GLint level, GLenum pname, GLint *params); +GLAPI void APIENTRY glTextureImage3DEXT (GLuint texture, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glTextureSubImage3DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glCopyTextureSubImage3DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glBindMultiTextureEXT (GLenum texunit, GLenum target, GLuint texture); +GLAPI void APIENTRY glMultiTexCoordPointerEXT (GLenum texunit, GLint size, GLenum type, GLsizei stride, const void *pointer); +GLAPI void APIENTRY glMultiTexEnvfEXT (GLenum texunit, GLenum target, GLenum pname, GLfloat param); +GLAPI void APIENTRY glMultiTexEnvfvEXT (GLenum texunit, GLenum target, GLenum pname, const GLfloat *params); +GLAPI void APIENTRY glMultiTexEnviEXT (GLenum texunit, GLenum target, GLenum pname, GLint param); +GLAPI void APIENTRY glMultiTexEnvivEXT (GLenum texunit, GLenum target, GLenum pname, const GLint *params); +GLAPI void APIENTRY glMultiTexGendEXT (GLenum texunit, GLenum coord, GLenum pname, GLdouble param); +GLAPI void APIENTRY glMultiTexGendvEXT (GLenum texunit, GLenum coord, GLenum pname, const GLdouble *params); +GLAPI void APIENTRY glMultiTexGenfEXT (GLenum texunit, GLenum coord, GLenum pname, GLfloat param); +GLAPI void APIENTRY glMultiTexGenfvEXT (GLenum texunit, GLenum coord, GLenum pname, const GLfloat *params); +GLAPI void APIENTRY glMultiTexGeniEXT (GLenum texunit, GLenum coord, GLenum pname, GLint param); +GLAPI void APIENTRY glMultiTexGenivEXT (GLenum texunit, GLenum coord, GLenum pname, const GLint *params); +GLAPI void APIENTRY glGetMultiTexEnvfvEXT (GLenum texunit, GLenum target, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetMultiTexEnvivEXT (GLenum texunit, GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetMultiTexGendvEXT (GLenum texunit, GLenum coord, GLenum pname, GLdouble *params); +GLAPI void APIENTRY glGetMultiTexGenfvEXT (GLenum texunit, GLenum coord, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetMultiTexGenivEXT (GLenum texunit, GLenum coord, GLenum pname, GLint *params); +GLAPI void APIENTRY glMultiTexParameteriEXT (GLenum texunit, GLenum target, GLenum pname, GLint param); +GLAPI void APIENTRY glMultiTexParameterivEXT (GLenum texunit, GLenum target, GLenum pname, const GLint *params); +GLAPI void APIENTRY glMultiTexParameterfEXT (GLenum texunit, GLenum target, GLenum pname, GLfloat param); +GLAPI void APIENTRY glMultiTexParameterfvEXT (GLenum texunit, GLenum target, GLenum pname, const GLfloat *params); +GLAPI void APIENTRY glMultiTexImage1DEXT (GLenum texunit, GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glMultiTexImage2DEXT (GLenum texunit, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glMultiTexSubImage1DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glMultiTexSubImage2DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glCopyMultiTexImage1DEXT (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border); +GLAPI void APIENTRY glCopyMultiTexImage2DEXT (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); +GLAPI void APIENTRY glCopyMultiTexSubImage1DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +GLAPI void APIENTRY glCopyMultiTexSubImage2DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glGetMultiTexImageEXT (GLenum texunit, GLenum target, GLint level, GLenum format, GLenum type, void *pixels); +GLAPI void APIENTRY glGetMultiTexParameterfvEXT (GLenum texunit, GLenum target, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetMultiTexParameterivEXT (GLenum texunit, GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetMultiTexLevelParameterfvEXT (GLenum texunit, GLenum target, GLint level, GLenum pname, GLfloat *params); +GLAPI void APIENTRY glGetMultiTexLevelParameterivEXT (GLenum texunit, GLenum target, GLint level, GLenum pname, GLint *params); +GLAPI void APIENTRY glMultiTexImage3DEXT (GLenum texunit, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glMultiTexSubImage3DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); +GLAPI void APIENTRY glCopyMultiTexSubImage3DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glEnableClientStateIndexedEXT (GLenum array, GLuint index); +GLAPI void APIENTRY glDisableClientStateIndexedEXT (GLenum array, GLuint index); +GLAPI void APIENTRY glGetFloatIndexedvEXT (GLenum target, GLuint index, GLfloat *data); +GLAPI void APIENTRY glGetDoubleIndexedvEXT (GLenum target, GLuint index, GLdouble *data); +GLAPI void APIENTRY glGetPointerIndexedvEXT (GLenum target, GLuint index, void **data); +GLAPI void APIENTRY glEnableIndexedEXT (GLenum target, GLuint index); +GLAPI void APIENTRY glDisableIndexedEXT (GLenum target, GLuint index); +GLAPI GLboolean APIENTRY glIsEnabledIndexedEXT (GLenum target, GLuint index); +GLAPI void APIENTRY glGetIntegerIndexedvEXT (GLenum target, GLuint index, GLint *data); +GLAPI void APIENTRY glGetBooleanIndexedvEXT (GLenum target, GLuint index, GLboolean *data); +GLAPI void APIENTRY glCompressedTextureImage3DEXT (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedTextureImage2DEXT (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedTextureImage1DEXT (GLuint texture, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedTextureSubImage3DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedTextureSubImage2DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedTextureSubImage1DEXT (GLuint texture, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glGetCompressedTextureImageEXT (GLuint texture, GLenum target, GLint lod, void *img); +GLAPI void APIENTRY glCompressedMultiTexImage3DEXT (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedMultiTexImage2DEXT (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedMultiTexImage1DEXT (GLenum texunit, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedMultiTexSubImage3DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedMultiTexSubImage2DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glCompressedMultiTexSubImage1DEXT (GLenum texunit, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *bits); +GLAPI void APIENTRY glGetCompressedMultiTexImageEXT (GLenum texunit, GLenum target, GLint lod, void *img); +GLAPI void APIENTRY glMatrixLoadTransposefEXT (GLenum mode, const GLfloat *m); +GLAPI void APIENTRY glMatrixLoadTransposedEXT (GLenum mode, const GLdouble *m); +GLAPI void APIENTRY glMatrixMultTransposefEXT (GLenum mode, const GLfloat *m); +GLAPI void APIENTRY glMatrixMultTransposedEXT (GLenum mode, const GLdouble *m); +GLAPI void APIENTRY glNamedBufferDataEXT (GLuint buffer, GLsizeiptr size, const void *data, GLenum usage); +GLAPI void APIENTRY glNamedBufferSubDataEXT (GLuint buffer, GLintptr offset, GLsizeiptr size, const void *data); +GLAPI void *APIENTRY glMapNamedBufferEXT (GLuint buffer, GLenum access); +GLAPI GLboolean APIENTRY glUnmapNamedBufferEXT (GLuint buffer); +GLAPI void APIENTRY glGetNamedBufferParameterivEXT (GLuint buffer, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetNamedBufferPointervEXT (GLuint buffer, GLenum pname, void **params); +GLAPI void APIENTRY glGetNamedBufferSubDataEXT (GLuint buffer, GLintptr offset, GLsizeiptr size, void *data); +GLAPI void APIENTRY glProgramUniform1fEXT (GLuint program, GLint location, GLfloat v0); +GLAPI void APIENTRY glProgramUniform2fEXT (GLuint program, GLint location, GLfloat v0, GLfloat v1); +GLAPI void APIENTRY glProgramUniform3fEXT (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2); +GLAPI void APIENTRY glProgramUniform4fEXT (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); +GLAPI void APIENTRY glProgramUniform1iEXT (GLuint program, GLint location, GLint v0); +GLAPI void APIENTRY glProgramUniform2iEXT (GLuint program, GLint location, GLint v0, GLint v1); +GLAPI void APIENTRY glProgramUniform3iEXT (GLuint program, GLint location, GLint v0, GLint v1, GLint v2); +GLAPI void APIENTRY glProgramUniform4iEXT (GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3); +GLAPI void APIENTRY glProgramUniform1fvEXT (GLuint program, GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glProgramUniform2fvEXT (GLuint program, GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glProgramUniform3fvEXT (GLuint program, GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glProgramUniform4fvEXT (GLuint program, GLint location, GLsizei count, const GLfloat *value); +GLAPI void APIENTRY glProgramUniform1ivEXT (GLuint program, GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glProgramUniform2ivEXT (GLuint program, GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glProgramUniform3ivEXT (GLuint program, GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glProgramUniform4ivEXT (GLuint program, GLint location, GLsizei count, const GLint *value); +GLAPI void APIENTRY glProgramUniformMatrix2fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix3fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix4fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix2x3fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix3x2fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix2x4fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix4x2fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix3x4fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glProgramUniformMatrix4x3fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); +GLAPI void APIENTRY glTextureBufferEXT (GLuint texture, GLenum target, GLenum internalformat, GLuint buffer); +GLAPI void APIENTRY glMultiTexBufferEXT (GLenum texunit, GLenum target, GLenum internalformat, GLuint buffer); +GLAPI void APIENTRY glTextureParameterIivEXT (GLuint texture, GLenum target, GLenum pname, const GLint *params); +GLAPI void APIENTRY glTextureParameterIuivEXT (GLuint texture, GLenum target, GLenum pname, const GLuint *params); +GLAPI void APIENTRY glGetTextureParameterIivEXT (GLuint texture, GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetTextureParameterIuivEXT (GLuint texture, GLenum target, GLenum pname, GLuint *params); +GLAPI void APIENTRY glMultiTexParameterIivEXT (GLenum texunit, GLenum target, GLenum pname, const GLint *params); +GLAPI void APIENTRY glMultiTexParameterIuivEXT (GLenum texunit, GLenum target, GLenum pname, const GLuint *params); +GLAPI void APIENTRY glGetMultiTexParameterIivEXT (GLenum texunit, GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetMultiTexParameterIuivEXT (GLenum texunit, GLenum target, GLenum pname, GLuint *params); +GLAPI void APIENTRY glProgramUniform1uiEXT (GLuint program, GLint location, GLuint v0); +GLAPI void APIENTRY glProgramUniform2uiEXT (GLuint program, GLint location, GLuint v0, GLuint v1); +GLAPI void APIENTRY glProgramUniform3uiEXT (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2); +GLAPI void APIENTRY glProgramUniform4uiEXT (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3); +GLAPI void APIENTRY glProgramUniform1uivEXT (GLuint program, GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glProgramUniform2uivEXT (GLuint program, GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glProgramUniform3uivEXT (GLuint program, GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glProgramUniform4uivEXT (GLuint program, GLint location, GLsizei count, const GLuint *value); +GLAPI void APIENTRY glNamedProgramLocalParameters4fvEXT (GLuint program, GLenum target, GLuint index, GLsizei count, const GLfloat *params); +GLAPI void APIENTRY glNamedProgramLocalParameterI4iEXT (GLuint program, GLenum target, GLuint index, GLint x, GLint y, GLint z, GLint w); +GLAPI void APIENTRY glNamedProgramLocalParameterI4ivEXT (GLuint program, GLenum target, GLuint index, const GLint *params); +GLAPI void APIENTRY glNamedProgramLocalParametersI4ivEXT (GLuint program, GLenum target, GLuint index, GLsizei count, const GLint *params); +GLAPI void APIENTRY glNamedProgramLocalParameterI4uiEXT (GLuint program, GLenum target, GLuint index, GLuint x, GLuint y, GLuint z, GLuint w); +GLAPI void APIENTRY glNamedProgramLocalParameterI4uivEXT (GLuint program, GLenum target, GLuint index, const GLuint *params); +GLAPI void APIENTRY glNamedProgramLocalParametersI4uivEXT (GLuint program, GLenum target, GLuint index, GLsizei count, const GLuint *params); +GLAPI void APIENTRY glGetNamedProgramLocalParameterIivEXT (GLuint program, GLenum target, GLuint index, GLint *params); +GLAPI void APIENTRY glGetNamedProgramLocalParameterIuivEXT (GLuint program, GLenum target, GLuint index, GLuint *params); +GLAPI void APIENTRY glEnableClientStateiEXT (GLenum array, GLuint index); +GLAPI void APIENTRY glDisableClientStateiEXT (GLenum array, GLuint index); +GLAPI void APIENTRY glGetFloati_vEXT (GLenum pname, GLuint index, GLfloat *params); +GLAPI void APIENTRY glGetDoublei_vEXT (GLenum pname, GLuint index, GLdouble *params); +GLAPI void APIENTRY glGetPointeri_vEXT (GLenum pname, GLuint index, void **params); +GLAPI void APIENTRY glNamedProgramStringEXT (GLuint program, GLenum target, GLenum format, GLsizei len, const void *string); +GLAPI void APIENTRY glNamedProgramLocalParameter4dEXT (GLuint program, GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +GLAPI void APIENTRY glNamedProgramLocalParameter4dvEXT (GLuint program, GLenum target, GLuint index, const GLdouble *params); +GLAPI void APIENTRY glNamedProgramLocalParameter4fEXT (GLuint program, GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); +GLAPI void APIENTRY glNamedProgramLocalParameter4fvEXT (GLuint program, GLenum target, GLuint index, const GLfloat *params); +GLAPI void APIENTRY glGetNamedProgramLocalParameterdvEXT (GLuint program, GLenum target, GLuint index, GLdouble *params); +GLAPI void APIENTRY glGetNamedProgramLocalParameterfvEXT (GLuint program, GLenum target, GLuint index, GLfloat *params); +GLAPI void APIENTRY glGetNamedProgramivEXT (GLuint program, GLenum target, GLenum pname, GLint *params); +GLAPI void APIENTRY glGetNamedProgramStringEXT (GLuint program, GLenum target, GLenum pname, void *string); +GLAPI void APIENTRY glNamedRenderbufferStorageEXT (GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glGetNamedRenderbufferParameterivEXT (GLuint renderbuffer, GLenum pname, GLint *params); +GLAPI void APIENTRY glNamedRenderbufferStorageMultisampleEXT (GLuint renderbuffer, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glNamedRenderbufferStorageMultisampleCoverageEXT (GLuint renderbuffer, GLsizei coverageSamples, GLsizei colorSamples, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI GLenum APIENTRY glCheckNamedFramebufferStatusEXT (GLuint framebuffer, GLenum target); +GLAPI void APIENTRY glNamedFramebufferTexture1DEXT (GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +GLAPI void APIENTRY glNamedFramebufferTexture2DEXT (GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level); +GLAPI void APIENTRY glNamedFramebufferTexture3DEXT (GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset); +GLAPI void APIENTRY glNamedFramebufferRenderbufferEXT (GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); +GLAPI void APIENTRY glGetNamedFramebufferAttachmentParameterivEXT (GLuint framebuffer, GLenum attachment, GLenum pname, GLint *params); +GLAPI void APIENTRY glGenerateTextureMipmapEXT (GLuint texture, GLenum target); +GLAPI void APIENTRY glGenerateMultiTexMipmapEXT (GLenum texunit, GLenum target); +GLAPI void APIENTRY glFramebufferDrawBufferEXT (GLuint framebuffer, GLenum mode); +GLAPI void APIENTRY glFramebufferDrawBuffersEXT (GLuint framebuffer, GLsizei n, const GLenum *bufs); +GLAPI void APIENTRY glFramebufferReadBufferEXT (GLuint framebuffer, GLenum mode); +GLAPI void APIENTRY glGetFramebufferParameterivEXT (GLuint framebuffer, GLenum pname, GLint *params); +GLAPI void APIENTRY glNamedCopyBufferSubDataEXT (GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size); +GLAPI void APIENTRY glNamedFramebufferTextureEXT (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level); +GLAPI void APIENTRY glNamedFramebufferTextureLayerEXT (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLint layer); +GLAPI void APIENTRY glNamedFramebufferTextureFaceEXT (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLenum face); +GLAPI void APIENTRY glTextureRenderbufferEXT (GLuint texture, GLenum target, GLuint renderbuffer); +GLAPI void APIENTRY glMultiTexRenderbufferEXT (GLenum texunit, GLenum target, GLuint renderbuffer); +GLAPI void APIENTRY glVertexArrayVertexOffsetEXT (GLuint vaobj, GLuint buffer, GLint size, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayColorOffsetEXT (GLuint vaobj, GLuint buffer, GLint size, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayEdgeFlagOffsetEXT (GLuint vaobj, GLuint buffer, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayIndexOffsetEXT (GLuint vaobj, GLuint buffer, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayNormalOffsetEXT (GLuint vaobj, GLuint buffer, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayTexCoordOffsetEXT (GLuint vaobj, GLuint buffer, GLint size, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayMultiTexCoordOffsetEXT (GLuint vaobj, GLuint buffer, GLenum texunit, GLint size, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayFogCoordOffsetEXT (GLuint vaobj, GLuint buffer, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArraySecondaryColorOffsetEXT (GLuint vaobj, GLuint buffer, GLint size, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayVertexAttribOffsetEXT (GLuint vaobj, GLuint buffer, GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glVertexArrayVertexAttribIOffsetEXT (GLuint vaobj, GLuint buffer, GLuint index, GLint size, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glEnableVertexArrayEXT (GLuint vaobj, GLenum array); +GLAPI void APIENTRY glDisableVertexArrayEXT (GLuint vaobj, GLenum array); +GLAPI void APIENTRY glEnableVertexArrayAttribEXT (GLuint vaobj, GLuint index); +GLAPI void APIENTRY glDisableVertexArrayAttribEXT (GLuint vaobj, GLuint index); +GLAPI void APIENTRY glGetVertexArrayIntegervEXT (GLuint vaobj, GLenum pname, GLint *param); +GLAPI void APIENTRY glGetVertexArrayPointervEXT (GLuint vaobj, GLenum pname, void **param); +GLAPI void APIENTRY glGetVertexArrayIntegeri_vEXT (GLuint vaobj, GLuint index, GLenum pname, GLint *param); +GLAPI void APIENTRY glGetVertexArrayPointeri_vEXT (GLuint vaobj, GLuint index, GLenum pname, void **param); +GLAPI void *APIENTRY glMapNamedBufferRangeEXT (GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access); +GLAPI void APIENTRY glFlushMappedNamedBufferRangeEXT (GLuint buffer, GLintptr offset, GLsizeiptr length); +GLAPI void APIENTRY glNamedBufferStorageEXT (GLuint buffer, GLsizeiptr size, const void *data, GLbitfield flags); +GLAPI void APIENTRY glClearNamedBufferDataEXT (GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void *data); +GLAPI void APIENTRY glClearNamedBufferSubDataEXT (GLuint buffer, GLenum internalformat, GLsizeiptr offset, GLsizeiptr size, GLenum format, GLenum type, const void *data); +GLAPI void APIENTRY glNamedFramebufferParameteriEXT (GLuint framebuffer, GLenum pname, GLint param); +GLAPI void APIENTRY glGetNamedFramebufferParameterivEXT (GLuint framebuffer, GLenum pname, GLint *params); +GLAPI void APIENTRY glProgramUniform1dEXT (GLuint program, GLint location, GLdouble x); +GLAPI void APIENTRY glProgramUniform2dEXT (GLuint program, GLint location, GLdouble x, GLdouble y); +GLAPI void APIENTRY glProgramUniform3dEXT (GLuint program, GLint location, GLdouble x, GLdouble y, GLdouble z); +GLAPI void APIENTRY glProgramUniform4dEXT (GLuint program, GLint location, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +GLAPI void APIENTRY glProgramUniform1dvEXT (GLuint program, GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glProgramUniform2dvEXT (GLuint program, GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glProgramUniform3dvEXT (GLuint program, GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glProgramUniform4dvEXT (GLuint program, GLint location, GLsizei count, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix2dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix3dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix4dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix2x3dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix2x4dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix3x2dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix3x4dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix4x2dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glProgramUniformMatrix4x3dvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble *value); +GLAPI void APIENTRY glTextureBufferRangeEXT (GLuint texture, GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); +GLAPI void APIENTRY glTextureStorage1DEXT (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width); +GLAPI void APIENTRY glTextureStorage2DEXT (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); +GLAPI void APIENTRY glTextureStorage3DEXT (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); +GLAPI void APIENTRY glTextureStorage2DMultisampleEXT (GLuint texture, GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations); +GLAPI void APIENTRY glTextureStorage3DMultisampleEXT (GLuint texture, GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); +GLAPI void APIENTRY glVertexArrayBindVertexBufferEXT (GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride); +GLAPI void APIENTRY glVertexArrayVertexAttribFormatEXT (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset); +GLAPI void APIENTRY glVertexArrayVertexAttribIFormatEXT (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +GLAPI void APIENTRY glVertexArrayVertexAttribLFormatEXT (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset); +GLAPI void APIENTRY glVertexArrayVertexAttribBindingEXT (GLuint vaobj, GLuint attribindex, GLuint bindingindex); +GLAPI void APIENTRY glVertexArrayVertexBindingDivisorEXT (GLuint vaobj, GLuint bindingindex, GLuint divisor); +GLAPI void APIENTRY glVertexArrayVertexAttribLOffsetEXT (GLuint vaobj, GLuint buffer, GLuint index, GLint size, GLenum type, GLsizei stride, GLintptr offset); +GLAPI void APIENTRY glTexturePageCommitmentEXT (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLboolean commit); +GLAPI void APIENTRY glVertexArrayVertexAttribDivisorEXT (GLuint vaobj, GLuint index, GLuint divisor); +#endif +#endif /* GL_EXT_direct_state_access */ + +#ifndef GL_EXT_draw_instanced +#define GL_EXT_draw_instanced 1 +typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDEXTPROC) (GLenum mode, GLint start, GLsizei count, GLsizei primcount); +typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawArraysInstancedEXT (GLenum mode, GLint start, GLsizei count, GLsizei primcount); +GLAPI void APIENTRY glDrawElementsInstancedEXT (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); +#endif +#endif /* GL_EXT_draw_instanced */ + +#ifndef GL_EXT_multiview_tessellation_geometry_shader +#define GL_EXT_multiview_tessellation_geometry_shader 1 +#endif /* GL_EXT_multiview_tessellation_geometry_shader */ + +#ifndef GL_EXT_multiview_texture_multisample +#define GL_EXT_multiview_texture_multisample 1 +#endif /* GL_EXT_multiview_texture_multisample */ + +#ifndef GL_EXT_multiview_timer_query +#define GL_EXT_multiview_timer_query 1 +#endif /* GL_EXT_multiview_timer_query */ + +#ifndef GL_EXT_polygon_offset_clamp +#define GL_EXT_polygon_offset_clamp 1 +#define GL_POLYGON_OFFSET_CLAMP_EXT 0x8E1B +typedef void (APIENTRYP PFNGLPOLYGONOFFSETCLAMPEXTPROC) (GLfloat factor, GLfloat units, GLfloat clamp); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glPolygonOffsetClampEXT (GLfloat factor, GLfloat units, GLfloat clamp); +#endif +#endif /* GL_EXT_polygon_offset_clamp */ + +#ifndef GL_EXT_post_depth_coverage +#define GL_EXT_post_depth_coverage 1 +#endif /* GL_EXT_post_depth_coverage */ + +#ifndef GL_EXT_raster_multisample +#define GL_EXT_raster_multisample 1 +#define GL_RASTER_MULTISAMPLE_EXT 0x9327 +#define GL_RASTER_SAMPLES_EXT 0x9328 +#define GL_MAX_RASTER_SAMPLES_EXT 0x9329 +#define GL_RASTER_FIXED_SAMPLE_LOCATIONS_EXT 0x932A +#define GL_MULTISAMPLE_RASTERIZATION_ALLOWED_EXT 0x932B +#define GL_EFFECTIVE_RASTER_SAMPLES_EXT 0x932C +typedef void (APIENTRYP PFNGLRASTERSAMPLESEXTPROC) (GLuint samples, GLboolean fixedsamplelocations); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glRasterSamplesEXT (GLuint samples, GLboolean fixedsamplelocations); +#endif +#endif /* GL_EXT_raster_multisample */ + +#ifndef GL_EXT_separate_shader_objects +#define GL_EXT_separate_shader_objects 1 +#define GL_ACTIVE_PROGRAM_EXT 0x8B8D +typedef void (APIENTRYP PFNGLUSESHADERPROGRAMEXTPROC) (GLenum type, GLuint program); +typedef void (APIENTRYP PFNGLACTIVEPROGRAMEXTPROC) (GLuint program); +typedef GLuint (APIENTRYP PFNGLCREATESHADERPROGRAMEXTPROC) (GLenum type, const GLchar *string); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glUseShaderProgramEXT (GLenum type, GLuint program); +GLAPI void APIENTRY glActiveProgramEXT (GLuint program); +GLAPI GLuint APIENTRY glCreateShaderProgramEXT (GLenum type, const GLchar *string); +#endif +#endif /* GL_EXT_separate_shader_objects */ + +#ifndef GL_EXT_shader_framebuffer_fetch +#define GL_EXT_shader_framebuffer_fetch 1 +#define GL_FRAGMENT_SHADER_DISCARDS_SAMPLES_EXT 0x8A52 +#endif /* GL_EXT_shader_framebuffer_fetch */ + +#ifndef GL_EXT_shader_framebuffer_fetch_non_coherent +#define GL_EXT_shader_framebuffer_fetch_non_coherent 1 +typedef void (APIENTRYP PFNGLFRAMEBUFFERFETCHBARRIEREXTPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glFramebufferFetchBarrierEXT (void); +#endif +#endif /* GL_EXT_shader_framebuffer_fetch_non_coherent */ + +#ifndef GL_EXT_shader_integer_mix +#define GL_EXT_shader_integer_mix 1 +#endif /* GL_EXT_shader_integer_mix */ + +#ifndef GL_EXT_texture_compression_s3tc +#define GL_EXT_texture_compression_s3tc 1 +#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0 +#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1 +#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2 +#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3 +#endif /* GL_EXT_texture_compression_s3tc */ + +#ifndef GL_EXT_texture_filter_minmax +#define GL_EXT_texture_filter_minmax 1 +#define GL_TEXTURE_REDUCTION_MODE_EXT 0x9366 +#define GL_WEIGHTED_AVERAGE_EXT 0x9367 +#endif /* GL_EXT_texture_filter_minmax */ + +#ifndef GL_EXT_texture_sRGB_R8 +#define GL_EXT_texture_sRGB_R8 1 +#define GL_SR8_EXT 0x8FBD +#endif /* GL_EXT_texture_sRGB_R8 */ + +#ifndef GL_EXT_texture_sRGB_decode +#define GL_EXT_texture_sRGB_decode 1 +#define GL_TEXTURE_SRGB_DECODE_EXT 0x8A48 +#define GL_DECODE_EXT 0x8A49 +#define GL_SKIP_DECODE_EXT 0x8A4A +#endif /* GL_EXT_texture_sRGB_decode */ + +#ifndef GL_EXT_texture_shadow_lod +#define GL_EXT_texture_shadow_lod 1 +#endif /* GL_EXT_texture_shadow_lod */ + +#ifndef GL_EXT_window_rectangles +#define GL_EXT_window_rectangles 1 +#define GL_INCLUSIVE_EXT 0x8F10 +#define GL_EXCLUSIVE_EXT 0x8F11 +#define GL_WINDOW_RECTANGLE_EXT 0x8F12 +#define GL_WINDOW_RECTANGLE_MODE_EXT 0x8F13 +#define GL_MAX_WINDOW_RECTANGLES_EXT 0x8F14 +#define GL_NUM_WINDOW_RECTANGLES_EXT 0x8F15 +typedef void (APIENTRYP PFNGLWINDOWRECTANGLESEXTPROC) (GLenum mode, GLsizei count, const GLint *box); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glWindowRectanglesEXT (GLenum mode, GLsizei count, const GLint *box); +#endif +#endif /* GL_EXT_window_rectangles */ + +#ifndef GL_INTEL_blackhole_render +#define GL_INTEL_blackhole_render 1 +#define GL_BLACKHOLE_RENDER_INTEL 0x83FC +#endif /* GL_INTEL_blackhole_render */ + +#ifndef GL_INTEL_conservative_rasterization +#define GL_INTEL_conservative_rasterization 1 +#define GL_CONSERVATIVE_RASTERIZATION_INTEL 0x83FE +#endif /* GL_INTEL_conservative_rasterization */ + +#ifndef GL_INTEL_framebuffer_CMAA +#define GL_INTEL_framebuffer_CMAA 1 +typedef void (APIENTRYP PFNGLAPPLYFRAMEBUFFERATTACHMENTCMAAINTELPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glApplyFramebufferAttachmentCMAAINTEL (void); +#endif +#endif /* GL_INTEL_framebuffer_CMAA */ + +#ifndef GL_INTEL_performance_query +#define GL_INTEL_performance_query 1 +#define GL_PERFQUERY_SINGLE_CONTEXT_INTEL 0x00000000 +#define GL_PERFQUERY_GLOBAL_CONTEXT_INTEL 0x00000001 +#define GL_PERFQUERY_WAIT_INTEL 0x83FB +#define GL_PERFQUERY_FLUSH_INTEL 0x83FA +#define GL_PERFQUERY_DONOT_FLUSH_INTEL 0x83F9 +#define GL_PERFQUERY_COUNTER_EVENT_INTEL 0x94F0 +#define GL_PERFQUERY_COUNTER_DURATION_NORM_INTEL 0x94F1 +#define GL_PERFQUERY_COUNTER_DURATION_RAW_INTEL 0x94F2 +#define GL_PERFQUERY_COUNTER_THROUGHPUT_INTEL 0x94F3 +#define GL_PERFQUERY_COUNTER_RAW_INTEL 0x94F4 +#define GL_PERFQUERY_COUNTER_TIMESTAMP_INTEL 0x94F5 +#define GL_PERFQUERY_COUNTER_DATA_UINT32_INTEL 0x94F8 +#define GL_PERFQUERY_COUNTER_DATA_UINT64_INTEL 0x94F9 +#define GL_PERFQUERY_COUNTER_DATA_FLOAT_INTEL 0x94FA +#define GL_PERFQUERY_COUNTER_DATA_DOUBLE_INTEL 0x94FB +#define GL_PERFQUERY_COUNTER_DATA_BOOL32_INTEL 0x94FC +#define GL_PERFQUERY_QUERY_NAME_LENGTH_MAX_INTEL 0x94FD +#define GL_PERFQUERY_COUNTER_NAME_LENGTH_MAX_INTEL 0x94FE +#define GL_PERFQUERY_COUNTER_DESC_LENGTH_MAX_INTEL 0x94FF +#define GL_PERFQUERY_GPA_EXTENDED_COUNTERS_INTEL 0x9500 +typedef void (APIENTRYP PFNGLBEGINPERFQUERYINTELPROC) (GLuint queryHandle); +typedef void (APIENTRYP PFNGLCREATEPERFQUERYINTELPROC) (GLuint queryId, GLuint *queryHandle); +typedef void (APIENTRYP PFNGLDELETEPERFQUERYINTELPROC) (GLuint queryHandle); +typedef void (APIENTRYP PFNGLENDPERFQUERYINTELPROC) (GLuint queryHandle); +typedef void (APIENTRYP PFNGLGETFIRSTPERFQUERYIDINTELPROC) (GLuint *queryId); +typedef void (APIENTRYP PFNGLGETNEXTPERFQUERYIDINTELPROC) (GLuint queryId, GLuint *nextQueryId); +typedef void (APIENTRYP PFNGLGETPERFCOUNTERINFOINTELPROC) (GLuint queryId, GLuint counterId, GLuint counterNameLength, GLchar *counterName, GLuint counterDescLength, GLchar *counterDesc, GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum, GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue); +typedef void (APIENTRYP PFNGLGETPERFQUERYDATAINTELPROC) (GLuint queryHandle, GLuint flags, GLsizei dataSize, void *data, GLuint *bytesWritten); +typedef void (APIENTRYP PFNGLGETPERFQUERYIDBYNAMEINTELPROC) (GLchar *queryName, GLuint *queryId); +typedef void (APIENTRYP PFNGLGETPERFQUERYINFOINTELPROC) (GLuint queryId, GLuint queryNameLength, GLchar *queryName, GLuint *dataSize, GLuint *noCounters, GLuint *noInstances, GLuint *capsMask); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBeginPerfQueryINTEL (GLuint queryHandle); +GLAPI void APIENTRY glCreatePerfQueryINTEL (GLuint queryId, GLuint *queryHandle); +GLAPI void APIENTRY glDeletePerfQueryINTEL (GLuint queryHandle); +GLAPI void APIENTRY glEndPerfQueryINTEL (GLuint queryHandle); +GLAPI void APIENTRY glGetFirstPerfQueryIdINTEL (GLuint *queryId); +GLAPI void APIENTRY glGetNextPerfQueryIdINTEL (GLuint queryId, GLuint *nextQueryId); +GLAPI void APIENTRY glGetPerfCounterInfoINTEL (GLuint queryId, GLuint counterId, GLuint counterNameLength, GLchar *counterName, GLuint counterDescLength, GLchar *counterDesc, GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum, GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue); +GLAPI void APIENTRY glGetPerfQueryDataINTEL (GLuint queryHandle, GLuint flags, GLsizei dataSize, void *data, GLuint *bytesWritten); +GLAPI void APIENTRY glGetPerfQueryIdByNameINTEL (GLchar *queryName, GLuint *queryId); +GLAPI void APIENTRY glGetPerfQueryInfoINTEL (GLuint queryId, GLuint queryNameLength, GLchar *queryName, GLuint *dataSize, GLuint *noCounters, GLuint *noInstances, GLuint *capsMask); +#endif +#endif /* GL_INTEL_performance_query */ + +#ifndef GL_MESA_framebuffer_flip_x +#define GL_MESA_framebuffer_flip_x 1 +#define GL_FRAMEBUFFER_FLIP_X_MESA 0x8BBC +#endif /* GL_MESA_framebuffer_flip_x */ + +#ifndef GL_MESA_framebuffer_flip_y +#define GL_MESA_framebuffer_flip_y 1 +#define GL_FRAMEBUFFER_FLIP_Y_MESA 0x8BBB +typedef void (APIENTRYP PFNGLFRAMEBUFFERPARAMETERIMESAPROC) (GLenum target, GLenum pname, GLint param); +typedef void (APIENTRYP PFNGLGETFRAMEBUFFERPARAMETERIVMESAPROC) (GLenum target, GLenum pname, GLint *params); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glFramebufferParameteriMESA (GLenum target, GLenum pname, GLint param); +GLAPI void APIENTRY glGetFramebufferParameterivMESA (GLenum target, GLenum pname, GLint *params); +#endif +#endif /* GL_MESA_framebuffer_flip_y */ + +#ifndef GL_MESA_framebuffer_swap_xy +#define GL_MESA_framebuffer_swap_xy 1 +#define GL_FRAMEBUFFER_SWAP_XY_MESA 0x8BBD +#endif /* GL_MESA_framebuffer_swap_xy */ + +#ifndef GL_NV_bindless_multi_draw_indirect +#define GL_NV_bindless_multi_draw_indirect 1 +typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTBINDLESSNVPROC) (GLenum mode, const void *indirect, GLsizei drawCount, GLsizei stride, GLint vertexBufferCount); +typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTBINDLESSNVPROC) (GLenum mode, GLenum type, const void *indirect, GLsizei drawCount, GLsizei stride, GLint vertexBufferCount); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMultiDrawArraysIndirectBindlessNV (GLenum mode, const void *indirect, GLsizei drawCount, GLsizei stride, GLint vertexBufferCount); +GLAPI void APIENTRY glMultiDrawElementsIndirectBindlessNV (GLenum mode, GLenum type, const void *indirect, GLsizei drawCount, GLsizei stride, GLint vertexBufferCount); +#endif +#endif /* GL_NV_bindless_multi_draw_indirect */ + +#ifndef GL_NV_bindless_multi_draw_indirect_count +#define GL_NV_bindless_multi_draw_indirect_count 1 +typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTBINDLESSCOUNTNVPROC) (GLenum mode, const void *indirect, GLsizei drawCount, GLsizei maxDrawCount, GLsizei stride, GLint vertexBufferCount); +typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTBINDLESSCOUNTNVPROC) (GLenum mode, GLenum type, const void *indirect, GLsizei drawCount, GLsizei maxDrawCount, GLsizei stride, GLint vertexBufferCount); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMultiDrawArraysIndirectBindlessCountNV (GLenum mode, const void *indirect, GLsizei drawCount, GLsizei maxDrawCount, GLsizei stride, GLint vertexBufferCount); +GLAPI void APIENTRY glMultiDrawElementsIndirectBindlessCountNV (GLenum mode, GLenum type, const void *indirect, GLsizei drawCount, GLsizei maxDrawCount, GLsizei stride, GLint vertexBufferCount); +#endif +#endif /* GL_NV_bindless_multi_draw_indirect_count */ + +#ifndef GL_NV_bindless_texture +#define GL_NV_bindless_texture 1 +typedef GLuint64 (APIENTRYP PFNGLGETTEXTUREHANDLENVPROC) (GLuint texture); +typedef GLuint64 (APIENTRYP PFNGLGETTEXTURESAMPLERHANDLENVPROC) (GLuint texture, GLuint sampler); +typedef void (APIENTRYP PFNGLMAKETEXTUREHANDLERESIDENTNVPROC) (GLuint64 handle); +typedef void (APIENTRYP PFNGLMAKETEXTUREHANDLENONRESIDENTNVPROC) (GLuint64 handle); +typedef GLuint64 (APIENTRYP PFNGLGETIMAGEHANDLENVPROC) (GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum format); +typedef void (APIENTRYP PFNGLMAKEIMAGEHANDLERESIDENTNVPROC) (GLuint64 handle, GLenum access); +typedef void (APIENTRYP PFNGLMAKEIMAGEHANDLENONRESIDENTNVPROC) (GLuint64 handle); +typedef void (APIENTRYP PFNGLUNIFORMHANDLEUI64NVPROC) (GLint location, GLuint64 value); +typedef void (APIENTRYP PFNGLUNIFORMHANDLEUI64VNVPROC) (GLint location, GLsizei count, const GLuint64 *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64NVPROC) (GLuint program, GLint location, GLuint64 value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64 *values); +typedef GLboolean (APIENTRYP PFNGLISTEXTUREHANDLERESIDENTNVPROC) (GLuint64 handle); +typedef GLboolean (APIENTRYP PFNGLISIMAGEHANDLERESIDENTNVPROC) (GLuint64 handle); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI GLuint64 APIENTRY glGetTextureHandleNV (GLuint texture); +GLAPI GLuint64 APIENTRY glGetTextureSamplerHandleNV (GLuint texture, GLuint sampler); +GLAPI void APIENTRY glMakeTextureHandleResidentNV (GLuint64 handle); +GLAPI void APIENTRY glMakeTextureHandleNonResidentNV (GLuint64 handle); +GLAPI GLuint64 APIENTRY glGetImageHandleNV (GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum format); +GLAPI void APIENTRY glMakeImageHandleResidentNV (GLuint64 handle, GLenum access); +GLAPI void APIENTRY glMakeImageHandleNonResidentNV (GLuint64 handle); +GLAPI void APIENTRY glUniformHandleui64NV (GLint location, GLuint64 value); +GLAPI void APIENTRY glUniformHandleui64vNV (GLint location, GLsizei count, const GLuint64 *value); +GLAPI void APIENTRY glProgramUniformHandleui64NV (GLuint program, GLint location, GLuint64 value); +GLAPI void APIENTRY glProgramUniformHandleui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64 *values); +GLAPI GLboolean APIENTRY glIsTextureHandleResidentNV (GLuint64 handle); +GLAPI GLboolean APIENTRY glIsImageHandleResidentNV (GLuint64 handle); +#endif +#endif /* GL_NV_bindless_texture */ + +#ifndef GL_NV_blend_equation_advanced +#define GL_NV_blend_equation_advanced 1 +#define GL_BLEND_OVERLAP_NV 0x9281 +#define GL_BLEND_PREMULTIPLIED_SRC_NV 0x9280 +#define GL_BLUE_NV 0x1905 +#define GL_COLORBURN_NV 0x929A +#define GL_COLORDODGE_NV 0x9299 +#define GL_CONJOINT_NV 0x9284 +#define GL_CONTRAST_NV 0x92A1 +#define GL_DARKEN_NV 0x9297 +#define GL_DIFFERENCE_NV 0x929E +#define GL_DISJOINT_NV 0x9283 +#define GL_DST_ATOP_NV 0x928F +#define GL_DST_IN_NV 0x928B +#define GL_DST_NV 0x9287 +#define GL_DST_OUT_NV 0x928D +#define GL_DST_OVER_NV 0x9289 +#define GL_EXCLUSION_NV 0x92A0 +#define GL_GREEN_NV 0x1904 +#define GL_HARDLIGHT_NV 0x929B +#define GL_HARDMIX_NV 0x92A9 +#define GL_HSL_COLOR_NV 0x92AF +#define GL_HSL_HUE_NV 0x92AD +#define GL_HSL_LUMINOSITY_NV 0x92B0 +#define GL_HSL_SATURATION_NV 0x92AE +#define GL_INVERT_OVG_NV 0x92B4 +#define GL_INVERT_RGB_NV 0x92A3 +#define GL_LIGHTEN_NV 0x9298 +#define GL_LINEARBURN_NV 0x92A5 +#define GL_LINEARDODGE_NV 0x92A4 +#define GL_LINEARLIGHT_NV 0x92A7 +#define GL_MINUS_CLAMPED_NV 0x92B3 +#define GL_MINUS_NV 0x929F +#define GL_MULTIPLY_NV 0x9294 +#define GL_OVERLAY_NV 0x9296 +#define GL_PINLIGHT_NV 0x92A8 +#define GL_PLUS_CLAMPED_ALPHA_NV 0x92B2 +#define GL_PLUS_CLAMPED_NV 0x92B1 +#define GL_PLUS_DARKER_NV 0x9292 +#define GL_PLUS_NV 0x9291 +#define GL_RED_NV 0x1903 +#define GL_SCREEN_NV 0x9295 +#define GL_SOFTLIGHT_NV 0x929C +#define GL_SRC_ATOP_NV 0x928E +#define GL_SRC_IN_NV 0x928A +#define GL_SRC_NV 0x9286 +#define GL_SRC_OUT_NV 0x928C +#define GL_SRC_OVER_NV 0x9288 +#define GL_UNCORRELATED_NV 0x9282 +#define GL_VIVIDLIGHT_NV 0x92A6 +#define GL_XOR_NV 0x1506 +typedef void (APIENTRYP PFNGLBLENDPARAMETERINVPROC) (GLenum pname, GLint value); +typedef void (APIENTRYP PFNGLBLENDBARRIERNVPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBlendParameteriNV (GLenum pname, GLint value); +GLAPI void APIENTRY glBlendBarrierNV (void); +#endif +#endif /* GL_NV_blend_equation_advanced */ + +#ifndef GL_NV_blend_equation_advanced_coherent +#define GL_NV_blend_equation_advanced_coherent 1 +#define GL_BLEND_ADVANCED_COHERENT_NV 0x9285 +#endif /* GL_NV_blend_equation_advanced_coherent */ + +#ifndef GL_NV_blend_minmax_factor +#define GL_NV_blend_minmax_factor 1 +#define GL_FACTOR_MIN_AMD 0x901C +#define GL_FACTOR_MAX_AMD 0x901D +#endif /* GL_NV_blend_minmax_factor */ + +#ifndef GL_NV_clip_space_w_scaling +#define GL_NV_clip_space_w_scaling 1 +#define GL_VIEWPORT_POSITION_W_SCALE_NV 0x937C +#define GL_VIEWPORT_POSITION_W_SCALE_X_COEFF_NV 0x937D +#define GL_VIEWPORT_POSITION_W_SCALE_Y_COEFF_NV 0x937E +typedef void (APIENTRYP PFNGLVIEWPORTPOSITIONWSCALENVPROC) (GLuint index, GLfloat xcoeff, GLfloat ycoeff); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glViewportPositionWScaleNV (GLuint index, GLfloat xcoeff, GLfloat ycoeff); +#endif +#endif /* GL_NV_clip_space_w_scaling */ + +#ifndef GL_NV_command_list +#define GL_NV_command_list 1 +#define GL_TERMINATE_SEQUENCE_COMMAND_NV 0x0000 +#define GL_NOP_COMMAND_NV 0x0001 +#define GL_DRAW_ELEMENTS_COMMAND_NV 0x0002 +#define GL_DRAW_ARRAYS_COMMAND_NV 0x0003 +#define GL_DRAW_ELEMENTS_STRIP_COMMAND_NV 0x0004 +#define GL_DRAW_ARRAYS_STRIP_COMMAND_NV 0x0005 +#define GL_DRAW_ELEMENTS_INSTANCED_COMMAND_NV 0x0006 +#define GL_DRAW_ARRAYS_INSTANCED_COMMAND_NV 0x0007 +#define GL_ELEMENT_ADDRESS_COMMAND_NV 0x0008 +#define GL_ATTRIBUTE_ADDRESS_COMMAND_NV 0x0009 +#define GL_UNIFORM_ADDRESS_COMMAND_NV 0x000A +#define GL_BLEND_COLOR_COMMAND_NV 0x000B +#define GL_STENCIL_REF_COMMAND_NV 0x000C +#define GL_LINE_WIDTH_COMMAND_NV 0x000D +#define GL_POLYGON_OFFSET_COMMAND_NV 0x000E +#define GL_ALPHA_REF_COMMAND_NV 0x000F +#define GL_VIEWPORT_COMMAND_NV 0x0010 +#define GL_SCISSOR_COMMAND_NV 0x0011 +#define GL_FRONT_FACE_COMMAND_NV 0x0012 +typedef void (APIENTRYP PFNGLCREATESTATESNVPROC) (GLsizei n, GLuint *states); +typedef void (APIENTRYP PFNGLDELETESTATESNVPROC) (GLsizei n, const GLuint *states); +typedef GLboolean (APIENTRYP PFNGLISSTATENVPROC) (GLuint state); +typedef void (APIENTRYP PFNGLSTATECAPTURENVPROC) (GLuint state, GLenum mode); +typedef GLuint (APIENTRYP PFNGLGETCOMMANDHEADERNVPROC) (GLenum tokenID, GLuint size); +typedef GLushort (APIENTRYP PFNGLGETSTAGEINDEXNVPROC) (GLenum shadertype); +typedef void (APIENTRYP PFNGLDRAWCOMMANDSNVPROC) (GLenum primitiveMode, GLuint buffer, const GLintptr *indirects, const GLsizei *sizes, GLuint count); +typedef void (APIENTRYP PFNGLDRAWCOMMANDSADDRESSNVPROC) (GLenum primitiveMode, const GLuint64 *indirects, const GLsizei *sizes, GLuint count); +typedef void (APIENTRYP PFNGLDRAWCOMMANDSSTATESNVPROC) (GLuint buffer, const GLintptr *indirects, const GLsizei *sizes, const GLuint *states, const GLuint *fbos, GLuint count); +typedef void (APIENTRYP PFNGLDRAWCOMMANDSSTATESADDRESSNVPROC) (const GLuint64 *indirects, const GLsizei *sizes, const GLuint *states, const GLuint *fbos, GLuint count); +typedef void (APIENTRYP PFNGLCREATECOMMANDLISTSNVPROC) (GLsizei n, GLuint *lists); +typedef void (APIENTRYP PFNGLDELETECOMMANDLISTSNVPROC) (GLsizei n, const GLuint *lists); +typedef GLboolean (APIENTRYP PFNGLISCOMMANDLISTNVPROC) (GLuint list); +typedef void (APIENTRYP PFNGLLISTDRAWCOMMANDSSTATESCLIENTNVPROC) (GLuint list, GLuint segment, const void **indirects, const GLsizei *sizes, const GLuint *states, const GLuint *fbos, GLuint count); +typedef void (APIENTRYP PFNGLCOMMANDLISTSEGMENTSNVPROC) (GLuint list, GLuint segments); +typedef void (APIENTRYP PFNGLCOMPILECOMMANDLISTNVPROC) (GLuint list); +typedef void (APIENTRYP PFNGLCALLCOMMANDLISTNVPROC) (GLuint list); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glCreateStatesNV (GLsizei n, GLuint *states); +GLAPI void APIENTRY glDeleteStatesNV (GLsizei n, const GLuint *states); +GLAPI GLboolean APIENTRY glIsStateNV (GLuint state); +GLAPI void APIENTRY glStateCaptureNV (GLuint state, GLenum mode); +GLAPI GLuint APIENTRY glGetCommandHeaderNV (GLenum tokenID, GLuint size); +GLAPI GLushort APIENTRY glGetStageIndexNV (GLenum shadertype); +GLAPI void APIENTRY glDrawCommandsNV (GLenum primitiveMode, GLuint buffer, const GLintptr *indirects, const GLsizei *sizes, GLuint count); +GLAPI void APIENTRY glDrawCommandsAddressNV (GLenum primitiveMode, const GLuint64 *indirects, const GLsizei *sizes, GLuint count); +GLAPI void APIENTRY glDrawCommandsStatesNV (GLuint buffer, const GLintptr *indirects, const GLsizei *sizes, const GLuint *states, const GLuint *fbos, GLuint count); +GLAPI void APIENTRY glDrawCommandsStatesAddressNV (const GLuint64 *indirects, const GLsizei *sizes, const GLuint *states, const GLuint *fbos, GLuint count); +GLAPI void APIENTRY glCreateCommandListsNV (GLsizei n, GLuint *lists); +GLAPI void APIENTRY glDeleteCommandListsNV (GLsizei n, const GLuint *lists); +GLAPI GLboolean APIENTRY glIsCommandListNV (GLuint list); +GLAPI void APIENTRY glListDrawCommandsStatesClientNV (GLuint list, GLuint segment, const void **indirects, const GLsizei *sizes, const GLuint *states, const GLuint *fbos, GLuint count); +GLAPI void APIENTRY glCommandListSegmentsNV (GLuint list, GLuint segments); +GLAPI void APIENTRY glCompileCommandListNV (GLuint list); +GLAPI void APIENTRY glCallCommandListNV (GLuint list); +#endif +#endif /* GL_NV_command_list */ + +#ifndef GL_NV_compute_shader_derivatives +#define GL_NV_compute_shader_derivatives 1 +#endif /* GL_NV_compute_shader_derivatives */ + +#ifndef GL_NV_conditional_render +#define GL_NV_conditional_render 1 +#define GL_QUERY_WAIT_NV 0x8E13 +#define GL_QUERY_NO_WAIT_NV 0x8E14 +#define GL_QUERY_BY_REGION_WAIT_NV 0x8E15 +#define GL_QUERY_BY_REGION_NO_WAIT_NV 0x8E16 +typedef void (APIENTRYP PFNGLBEGINCONDITIONALRENDERNVPROC) (GLuint id, GLenum mode); +typedef void (APIENTRYP PFNGLENDCONDITIONALRENDERNVPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBeginConditionalRenderNV (GLuint id, GLenum mode); +GLAPI void APIENTRY glEndConditionalRenderNV (void); +#endif +#endif /* GL_NV_conditional_render */ + +#ifndef GL_NV_conservative_raster +#define GL_NV_conservative_raster 1 +#define GL_CONSERVATIVE_RASTERIZATION_NV 0x9346 +#define GL_SUBPIXEL_PRECISION_BIAS_X_BITS_NV 0x9347 +#define GL_SUBPIXEL_PRECISION_BIAS_Y_BITS_NV 0x9348 +#define GL_MAX_SUBPIXEL_PRECISION_BIAS_BITS_NV 0x9349 +typedef void (APIENTRYP PFNGLSUBPIXELPRECISIONBIASNVPROC) (GLuint xbits, GLuint ybits); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glSubpixelPrecisionBiasNV (GLuint xbits, GLuint ybits); +#endif +#endif /* GL_NV_conservative_raster */ + +#ifndef GL_NV_conservative_raster_dilate +#define GL_NV_conservative_raster_dilate 1 +#define GL_CONSERVATIVE_RASTER_DILATE_NV 0x9379 +#define GL_CONSERVATIVE_RASTER_DILATE_RANGE_NV 0x937A +#define GL_CONSERVATIVE_RASTER_DILATE_GRANULARITY_NV 0x937B +typedef void (APIENTRYP PFNGLCONSERVATIVERASTERPARAMETERFNVPROC) (GLenum pname, GLfloat value); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glConservativeRasterParameterfNV (GLenum pname, GLfloat value); +#endif +#endif /* GL_NV_conservative_raster_dilate */ + +#ifndef GL_NV_conservative_raster_pre_snap +#define GL_NV_conservative_raster_pre_snap 1 +#define GL_CONSERVATIVE_RASTER_MODE_PRE_SNAP_NV 0x9550 +#endif /* GL_NV_conservative_raster_pre_snap */ + +#ifndef GL_NV_conservative_raster_pre_snap_triangles +#define GL_NV_conservative_raster_pre_snap_triangles 1 +#define GL_CONSERVATIVE_RASTER_MODE_NV 0x954D +#define GL_CONSERVATIVE_RASTER_MODE_POST_SNAP_NV 0x954E +#define GL_CONSERVATIVE_RASTER_MODE_PRE_SNAP_TRIANGLES_NV 0x954F +typedef void (APIENTRYP PFNGLCONSERVATIVERASTERPARAMETERINVPROC) (GLenum pname, GLint param); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glConservativeRasterParameteriNV (GLenum pname, GLint param); +#endif +#endif /* GL_NV_conservative_raster_pre_snap_triangles */ + +#ifndef GL_NV_conservative_raster_underestimation +#define GL_NV_conservative_raster_underestimation 1 +#endif /* GL_NV_conservative_raster_underestimation */ + +#ifndef GL_NV_depth_buffer_float +#define GL_NV_depth_buffer_float 1 +#define GL_DEPTH_COMPONENT32F_NV 0x8DAB +#define GL_DEPTH32F_STENCIL8_NV 0x8DAC +#define GL_FLOAT_32_UNSIGNED_INT_24_8_REV_NV 0x8DAD +#define GL_DEPTH_BUFFER_FLOAT_MODE_NV 0x8DAF +typedef void (APIENTRYP PFNGLDEPTHRANGEDNVPROC) (GLdouble zNear, GLdouble zFar); +typedef void (APIENTRYP PFNGLCLEARDEPTHDNVPROC) (GLdouble depth); +typedef void (APIENTRYP PFNGLDEPTHBOUNDSDNVPROC) (GLdouble zmin, GLdouble zmax); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDepthRangedNV (GLdouble zNear, GLdouble zFar); +GLAPI void APIENTRY glClearDepthdNV (GLdouble depth); +GLAPI void APIENTRY glDepthBoundsdNV (GLdouble zmin, GLdouble zmax); +#endif +#endif /* GL_NV_depth_buffer_float */ + +#ifndef GL_NV_draw_vulkan_image +#define GL_NV_draw_vulkan_image 1 +typedef void (APIENTRY *GLVULKANPROCNV)(void); +typedef void (APIENTRYP PFNGLDRAWVKIMAGENVPROC) (GLuint64 vkImage, GLuint sampler, GLfloat x0, GLfloat y0, GLfloat x1, GLfloat y1, GLfloat z, GLfloat s0, GLfloat t0, GLfloat s1, GLfloat t1); +typedef GLVULKANPROCNV (APIENTRYP PFNGLGETVKPROCADDRNVPROC) (const GLchar *name); +typedef void (APIENTRYP PFNGLWAITVKSEMAPHORENVPROC) (GLuint64 vkSemaphore); +typedef void (APIENTRYP PFNGLSIGNALVKSEMAPHORENVPROC) (GLuint64 vkSemaphore); +typedef void (APIENTRYP PFNGLSIGNALVKFENCENVPROC) (GLuint64 vkFence); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawVkImageNV (GLuint64 vkImage, GLuint sampler, GLfloat x0, GLfloat y0, GLfloat x1, GLfloat y1, GLfloat z, GLfloat s0, GLfloat t0, GLfloat s1, GLfloat t1); +GLAPI GLVULKANPROCNV APIENTRY glGetVkProcAddrNV (const GLchar *name); +GLAPI void APIENTRY glWaitVkSemaphoreNV (GLuint64 vkSemaphore); +GLAPI void APIENTRY glSignalVkSemaphoreNV (GLuint64 vkSemaphore); +GLAPI void APIENTRY glSignalVkFenceNV (GLuint64 vkFence); +#endif +#endif /* GL_NV_draw_vulkan_image */ + +#ifndef GL_NV_fill_rectangle +#define GL_NV_fill_rectangle 1 +#define GL_FILL_RECTANGLE_NV 0x933C +#endif /* GL_NV_fill_rectangle */ + +#ifndef GL_NV_fragment_coverage_to_color +#define GL_NV_fragment_coverage_to_color 1 +#define GL_FRAGMENT_COVERAGE_TO_COLOR_NV 0x92DD +#define GL_FRAGMENT_COVERAGE_COLOR_NV 0x92DE +typedef void (APIENTRYP PFNGLFRAGMENTCOVERAGECOLORNVPROC) (GLuint color); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glFragmentCoverageColorNV (GLuint color); +#endif +#endif /* GL_NV_fragment_coverage_to_color */ + +#ifndef GL_NV_fragment_shader_barycentric +#define GL_NV_fragment_shader_barycentric 1 +#endif /* GL_NV_fragment_shader_barycentric */ + +#ifndef GL_NV_fragment_shader_interlock +#define GL_NV_fragment_shader_interlock 1 +#endif /* GL_NV_fragment_shader_interlock */ + +#ifndef GL_NV_framebuffer_mixed_samples +#define GL_NV_framebuffer_mixed_samples 1 +#define GL_COVERAGE_MODULATION_TABLE_NV 0x9331 +#define GL_COLOR_SAMPLES_NV 0x8E20 +#define GL_DEPTH_SAMPLES_NV 0x932D +#define GL_STENCIL_SAMPLES_NV 0x932E +#define GL_MIXED_DEPTH_SAMPLES_SUPPORTED_NV 0x932F +#define GL_MIXED_STENCIL_SAMPLES_SUPPORTED_NV 0x9330 +#define GL_COVERAGE_MODULATION_NV 0x9332 +#define GL_COVERAGE_MODULATION_TABLE_SIZE_NV 0x9333 +typedef void (APIENTRYP PFNGLCOVERAGEMODULATIONTABLENVPROC) (GLsizei n, const GLfloat *v); +typedef void (APIENTRYP PFNGLGETCOVERAGEMODULATIONTABLENVPROC) (GLsizei bufSize, GLfloat *v); +typedef void (APIENTRYP PFNGLCOVERAGEMODULATIONNVPROC) (GLenum components); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glCoverageModulationTableNV (GLsizei n, const GLfloat *v); +GLAPI void APIENTRY glGetCoverageModulationTableNV (GLsizei bufSize, GLfloat *v); +GLAPI void APIENTRY glCoverageModulationNV (GLenum components); +#endif +#endif /* GL_NV_framebuffer_mixed_samples */ + +#ifndef GL_NV_framebuffer_multisample_coverage +#define GL_NV_framebuffer_multisample_coverage 1 +#define GL_RENDERBUFFER_COVERAGE_SAMPLES_NV 0x8CAB +#define GL_RENDERBUFFER_COLOR_SAMPLES_NV 0x8E10 +#define GL_MAX_MULTISAMPLE_COVERAGE_MODES_NV 0x8E11 +#define GL_MULTISAMPLE_COVERAGE_MODES_NV 0x8E12 +typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLECOVERAGENVPROC) (GLenum target, GLsizei coverageSamples, GLsizei colorSamples, GLenum internalformat, GLsizei width, GLsizei height); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glRenderbufferStorageMultisampleCoverageNV (GLenum target, GLsizei coverageSamples, GLsizei colorSamples, GLenum internalformat, GLsizei width, GLsizei height); +#endif +#endif /* GL_NV_framebuffer_multisample_coverage */ + +#ifndef GL_NV_geometry_shader_passthrough +#define GL_NV_geometry_shader_passthrough 1 +#endif /* GL_NV_geometry_shader_passthrough */ + +#ifndef GL_NV_gpu_shader5 +#define GL_NV_gpu_shader5 1 +typedef khronos_int64_t GLint64EXT; +#define GL_INT64_NV 0x140E +#define GL_UNSIGNED_INT64_NV 0x140F +#define GL_INT8_NV 0x8FE0 +#define GL_INT8_VEC2_NV 0x8FE1 +#define GL_INT8_VEC3_NV 0x8FE2 +#define GL_INT8_VEC4_NV 0x8FE3 +#define GL_INT16_NV 0x8FE4 +#define GL_INT16_VEC2_NV 0x8FE5 +#define GL_INT16_VEC3_NV 0x8FE6 +#define GL_INT16_VEC4_NV 0x8FE7 +#define GL_INT64_VEC2_NV 0x8FE9 +#define GL_INT64_VEC3_NV 0x8FEA +#define GL_INT64_VEC4_NV 0x8FEB +#define GL_UNSIGNED_INT8_NV 0x8FEC +#define GL_UNSIGNED_INT8_VEC2_NV 0x8FED +#define GL_UNSIGNED_INT8_VEC3_NV 0x8FEE +#define GL_UNSIGNED_INT8_VEC4_NV 0x8FEF +#define GL_UNSIGNED_INT16_NV 0x8FF0 +#define GL_UNSIGNED_INT16_VEC2_NV 0x8FF1 +#define GL_UNSIGNED_INT16_VEC3_NV 0x8FF2 +#define GL_UNSIGNED_INT16_VEC4_NV 0x8FF3 +#define GL_UNSIGNED_INT64_VEC2_NV 0x8FF5 +#define GL_UNSIGNED_INT64_VEC3_NV 0x8FF6 +#define GL_UNSIGNED_INT64_VEC4_NV 0x8FF7 +#define GL_FLOAT16_NV 0x8FF8 +#define GL_FLOAT16_VEC2_NV 0x8FF9 +#define GL_FLOAT16_VEC3_NV 0x8FFA +#define GL_FLOAT16_VEC4_NV 0x8FFB +typedef void (APIENTRYP PFNGLUNIFORM1I64NVPROC) (GLint location, GLint64EXT x); +typedef void (APIENTRYP PFNGLUNIFORM2I64NVPROC) (GLint location, GLint64EXT x, GLint64EXT y); +typedef void (APIENTRYP PFNGLUNIFORM3I64NVPROC) (GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z); +typedef void (APIENTRYP PFNGLUNIFORM4I64NVPROC) (GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); +typedef void (APIENTRYP PFNGLUNIFORM1I64VNVPROC) (GLint location, GLsizei count, const GLint64EXT *value); +typedef void (APIENTRYP PFNGLUNIFORM2I64VNVPROC) (GLint location, GLsizei count, const GLint64EXT *value); +typedef void (APIENTRYP PFNGLUNIFORM3I64VNVPROC) (GLint location, GLsizei count, const GLint64EXT *value); +typedef void (APIENTRYP PFNGLUNIFORM4I64VNVPROC) (GLint location, GLsizei count, const GLint64EXT *value); +typedef void (APIENTRYP PFNGLUNIFORM1UI64NVPROC) (GLint location, GLuint64EXT x); +typedef void (APIENTRYP PFNGLUNIFORM2UI64NVPROC) (GLint location, GLuint64EXT x, GLuint64EXT y); +typedef void (APIENTRYP PFNGLUNIFORM3UI64NVPROC) (GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); +typedef void (APIENTRYP PFNGLUNIFORM4UI64NVPROC) (GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); +typedef void (APIENTRYP PFNGLUNIFORM1UI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); +typedef void (APIENTRYP PFNGLUNIFORM2UI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); +typedef void (APIENTRYP PFNGLUNIFORM3UI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); +typedef void (APIENTRYP PFNGLUNIFORM4UI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); +typedef void (APIENTRYP PFNGLGETUNIFORMI64VNVPROC) (GLuint program, GLint location, GLint64EXT *params); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1I64NVPROC) (GLuint program, GLint location, GLint64EXT x); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2I64NVPROC) (GLuint program, GLint location, GLint64EXT x, GLint64EXT y); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3I64NVPROC) (GLuint program, GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4I64NVPROC) (GLuint program, GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1I64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2I64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3I64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4I64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UI64NVPROC) (GLuint program, GLint location, GLuint64EXT x); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UI64NVPROC) (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UI64NVPROC) (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UI64NVPROC) (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glUniform1i64NV (GLint location, GLint64EXT x); +GLAPI void APIENTRY glUniform2i64NV (GLint location, GLint64EXT x, GLint64EXT y); +GLAPI void APIENTRY glUniform3i64NV (GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z); +GLAPI void APIENTRY glUniform4i64NV (GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); +GLAPI void APIENTRY glUniform1i64vNV (GLint location, GLsizei count, const GLint64EXT *value); +GLAPI void APIENTRY glUniform2i64vNV (GLint location, GLsizei count, const GLint64EXT *value); +GLAPI void APIENTRY glUniform3i64vNV (GLint location, GLsizei count, const GLint64EXT *value); +GLAPI void APIENTRY glUniform4i64vNV (GLint location, GLsizei count, const GLint64EXT *value); +GLAPI void APIENTRY glUniform1ui64NV (GLint location, GLuint64EXT x); +GLAPI void APIENTRY glUniform2ui64NV (GLint location, GLuint64EXT x, GLuint64EXT y); +GLAPI void APIENTRY glUniform3ui64NV (GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); +GLAPI void APIENTRY glUniform4ui64NV (GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); +GLAPI void APIENTRY glUniform1ui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); +GLAPI void APIENTRY glUniform2ui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); +GLAPI void APIENTRY glUniform3ui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); +GLAPI void APIENTRY glUniform4ui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); +GLAPI void APIENTRY glGetUniformi64vNV (GLuint program, GLint location, GLint64EXT *params); +GLAPI void APIENTRY glProgramUniform1i64NV (GLuint program, GLint location, GLint64EXT x); +GLAPI void APIENTRY glProgramUniform2i64NV (GLuint program, GLint location, GLint64EXT x, GLint64EXT y); +GLAPI void APIENTRY glProgramUniform3i64NV (GLuint program, GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z); +GLAPI void APIENTRY glProgramUniform4i64NV (GLuint program, GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); +GLAPI void APIENTRY glProgramUniform1i64vNV (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); +GLAPI void APIENTRY glProgramUniform2i64vNV (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); +GLAPI void APIENTRY glProgramUniform3i64vNV (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); +GLAPI void APIENTRY glProgramUniform4i64vNV (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); +GLAPI void APIENTRY glProgramUniform1ui64NV (GLuint program, GLint location, GLuint64EXT x); +GLAPI void APIENTRY glProgramUniform2ui64NV (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y); +GLAPI void APIENTRY glProgramUniform3ui64NV (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); +GLAPI void APIENTRY glProgramUniform4ui64NV (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); +GLAPI void APIENTRY glProgramUniform1ui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +GLAPI void APIENTRY glProgramUniform2ui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +GLAPI void APIENTRY glProgramUniform3ui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +GLAPI void APIENTRY glProgramUniform4ui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +#endif +#endif /* GL_NV_gpu_shader5 */ + +#ifndef GL_NV_internalformat_sample_query +#define GL_NV_internalformat_sample_query 1 +#define GL_MULTISAMPLES_NV 0x9371 +#define GL_SUPERSAMPLE_SCALE_X_NV 0x9372 +#define GL_SUPERSAMPLE_SCALE_Y_NV 0x9373 +#define GL_CONFORMANT_NV 0x9374 +typedef void (APIENTRYP PFNGLGETINTERNALFORMATSAMPLEIVNVPROC) (GLenum target, GLenum internalformat, GLsizei samples, GLenum pname, GLsizei count, GLint *params); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glGetInternalformatSampleivNV (GLenum target, GLenum internalformat, GLsizei samples, GLenum pname, GLsizei count, GLint *params); +#endif +#endif /* GL_NV_internalformat_sample_query */ + +#ifndef GL_NV_memory_attachment +#define GL_NV_memory_attachment 1 +#define GL_ATTACHED_MEMORY_OBJECT_NV 0x95A4 +#define GL_ATTACHED_MEMORY_OFFSET_NV 0x95A5 +#define GL_MEMORY_ATTACHABLE_ALIGNMENT_NV 0x95A6 +#define GL_MEMORY_ATTACHABLE_SIZE_NV 0x95A7 +#define GL_MEMORY_ATTACHABLE_NV 0x95A8 +#define GL_DETACHED_MEMORY_INCARNATION_NV 0x95A9 +#define GL_DETACHED_TEXTURES_NV 0x95AA +#define GL_DETACHED_BUFFERS_NV 0x95AB +#define GL_MAX_DETACHED_TEXTURES_NV 0x95AC +#define GL_MAX_DETACHED_BUFFERS_NV 0x95AD +typedef void (APIENTRYP PFNGLGETMEMORYOBJECTDETACHEDRESOURCESUIVNVPROC) (GLuint memory, GLenum pname, GLint first, GLsizei count, GLuint *params); +typedef void (APIENTRYP PFNGLRESETMEMORYOBJECTPARAMETERNVPROC) (GLuint memory, GLenum pname); +typedef void (APIENTRYP PFNGLTEXATTACHMEMORYNVPROC) (GLenum target, GLuint memory, GLuint64 offset); +typedef void (APIENTRYP PFNGLBUFFERATTACHMEMORYNVPROC) (GLenum target, GLuint memory, GLuint64 offset); +typedef void (APIENTRYP PFNGLTEXTUREATTACHMEMORYNVPROC) (GLuint texture, GLuint memory, GLuint64 offset); +typedef void (APIENTRYP PFNGLNAMEDBUFFERATTACHMEMORYNVPROC) (GLuint buffer, GLuint memory, GLuint64 offset); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glGetMemoryObjectDetachedResourcesuivNV (GLuint memory, GLenum pname, GLint first, GLsizei count, GLuint *params); +GLAPI void APIENTRY glResetMemoryObjectParameterNV (GLuint memory, GLenum pname); +GLAPI void APIENTRY glTexAttachMemoryNV (GLenum target, GLuint memory, GLuint64 offset); +GLAPI void APIENTRY glBufferAttachMemoryNV (GLenum target, GLuint memory, GLuint64 offset); +GLAPI void APIENTRY glTextureAttachMemoryNV (GLuint texture, GLuint memory, GLuint64 offset); +GLAPI void APIENTRY glNamedBufferAttachMemoryNV (GLuint buffer, GLuint memory, GLuint64 offset); +#endif +#endif /* GL_NV_memory_attachment */ + +#ifndef GL_NV_mesh_shader +#define GL_NV_mesh_shader 1 +#define GL_MESH_SHADER_NV 0x9559 +#define GL_TASK_SHADER_NV 0x955A +#define GL_MAX_MESH_UNIFORM_BLOCKS_NV 0x8E60 +#define GL_MAX_MESH_TEXTURE_IMAGE_UNITS_NV 0x8E61 +#define GL_MAX_MESH_IMAGE_UNIFORMS_NV 0x8E62 +#define GL_MAX_MESH_UNIFORM_COMPONENTS_NV 0x8E63 +#define GL_MAX_MESH_ATOMIC_COUNTER_BUFFERS_NV 0x8E64 +#define GL_MAX_MESH_ATOMIC_COUNTERS_NV 0x8E65 +#define GL_MAX_MESH_SHADER_STORAGE_BLOCKS_NV 0x8E66 +#define GL_MAX_COMBINED_MESH_UNIFORM_COMPONENTS_NV 0x8E67 +#define GL_MAX_TASK_UNIFORM_BLOCKS_NV 0x8E68 +#define GL_MAX_TASK_TEXTURE_IMAGE_UNITS_NV 0x8E69 +#define GL_MAX_TASK_IMAGE_UNIFORMS_NV 0x8E6A +#define GL_MAX_TASK_UNIFORM_COMPONENTS_NV 0x8E6B +#define GL_MAX_TASK_ATOMIC_COUNTER_BUFFERS_NV 0x8E6C +#define GL_MAX_TASK_ATOMIC_COUNTERS_NV 0x8E6D +#define GL_MAX_TASK_SHADER_STORAGE_BLOCKS_NV 0x8E6E +#define GL_MAX_COMBINED_TASK_UNIFORM_COMPONENTS_NV 0x8E6F +#define GL_MAX_MESH_WORK_GROUP_INVOCATIONS_NV 0x95A2 +#define GL_MAX_TASK_WORK_GROUP_INVOCATIONS_NV 0x95A3 +#define GL_MAX_MESH_TOTAL_MEMORY_SIZE_NV 0x9536 +#define GL_MAX_TASK_TOTAL_MEMORY_SIZE_NV 0x9537 +#define GL_MAX_MESH_OUTPUT_VERTICES_NV 0x9538 +#define GL_MAX_MESH_OUTPUT_PRIMITIVES_NV 0x9539 +#define GL_MAX_TASK_OUTPUT_COUNT_NV 0x953A +#define GL_MAX_DRAW_MESH_TASKS_COUNT_NV 0x953D +#define GL_MAX_MESH_VIEWS_NV 0x9557 +#define GL_MESH_OUTPUT_PER_VERTEX_GRANULARITY_NV 0x92DF +#define GL_MESH_OUTPUT_PER_PRIMITIVE_GRANULARITY_NV 0x9543 +#define GL_MAX_MESH_WORK_GROUP_SIZE_NV 0x953B +#define GL_MAX_TASK_WORK_GROUP_SIZE_NV 0x953C +#define GL_MESH_WORK_GROUP_SIZE_NV 0x953E +#define GL_TASK_WORK_GROUP_SIZE_NV 0x953F +#define GL_MESH_VERTICES_OUT_NV 0x9579 +#define GL_MESH_PRIMITIVES_OUT_NV 0x957A +#define GL_MESH_OUTPUT_TYPE_NV 0x957B +#define GL_UNIFORM_BLOCK_REFERENCED_BY_MESH_SHADER_NV 0x959C +#define GL_UNIFORM_BLOCK_REFERENCED_BY_TASK_SHADER_NV 0x959D +#define GL_REFERENCED_BY_MESH_SHADER_NV 0x95A0 +#define GL_REFERENCED_BY_TASK_SHADER_NV 0x95A1 +#define GL_MESH_SHADER_BIT_NV 0x00000040 +#define GL_TASK_SHADER_BIT_NV 0x00000080 +#define GL_MESH_SUBROUTINE_NV 0x957C +#define GL_TASK_SUBROUTINE_NV 0x957D +#define GL_MESH_SUBROUTINE_UNIFORM_NV 0x957E +#define GL_TASK_SUBROUTINE_UNIFORM_NV 0x957F +#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_MESH_SHADER_NV 0x959E +#define GL_ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TASK_SHADER_NV 0x959F +typedef void (APIENTRYP PFNGLDRAWMESHTASKSNVPROC) (GLuint first, GLuint count); +typedef void (APIENTRYP PFNGLDRAWMESHTASKSINDIRECTNVPROC) (GLintptr indirect); +typedef void (APIENTRYP PFNGLMULTIDRAWMESHTASKSINDIRECTNVPROC) (GLintptr indirect, GLsizei drawcount, GLsizei stride); +typedef void (APIENTRYP PFNGLMULTIDRAWMESHTASKSINDIRECTCOUNTNVPROC) (GLintptr indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glDrawMeshTasksNV (GLuint first, GLuint count); +GLAPI void APIENTRY glDrawMeshTasksIndirectNV (GLintptr indirect); +GLAPI void APIENTRY glMultiDrawMeshTasksIndirectNV (GLintptr indirect, GLsizei drawcount, GLsizei stride); +GLAPI void APIENTRY glMultiDrawMeshTasksIndirectCountNV (GLintptr indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride); +#endif +#endif /* GL_NV_mesh_shader */ + +#ifndef GL_NV_path_rendering +#define GL_NV_path_rendering 1 +#define GL_PATH_FORMAT_SVG_NV 0x9070 +#define GL_PATH_FORMAT_PS_NV 0x9071 +#define GL_STANDARD_FONT_NAME_NV 0x9072 +#define GL_SYSTEM_FONT_NAME_NV 0x9073 +#define GL_FILE_NAME_NV 0x9074 +#define GL_PATH_STROKE_WIDTH_NV 0x9075 +#define GL_PATH_END_CAPS_NV 0x9076 +#define GL_PATH_INITIAL_END_CAP_NV 0x9077 +#define GL_PATH_TERMINAL_END_CAP_NV 0x9078 +#define GL_PATH_JOIN_STYLE_NV 0x9079 +#define GL_PATH_MITER_LIMIT_NV 0x907A +#define GL_PATH_DASH_CAPS_NV 0x907B +#define GL_PATH_INITIAL_DASH_CAP_NV 0x907C +#define GL_PATH_TERMINAL_DASH_CAP_NV 0x907D +#define GL_PATH_DASH_OFFSET_NV 0x907E +#define GL_PATH_CLIENT_LENGTH_NV 0x907F +#define GL_PATH_FILL_MODE_NV 0x9080 +#define GL_PATH_FILL_MASK_NV 0x9081 +#define GL_PATH_FILL_COVER_MODE_NV 0x9082 +#define GL_PATH_STROKE_COVER_MODE_NV 0x9083 +#define GL_PATH_STROKE_MASK_NV 0x9084 +#define GL_COUNT_UP_NV 0x9088 +#define GL_COUNT_DOWN_NV 0x9089 +#define GL_PATH_OBJECT_BOUNDING_BOX_NV 0x908A +#define GL_CONVEX_HULL_NV 0x908B +#define GL_BOUNDING_BOX_NV 0x908D +#define GL_TRANSLATE_X_NV 0x908E +#define GL_TRANSLATE_Y_NV 0x908F +#define GL_TRANSLATE_2D_NV 0x9090 +#define GL_TRANSLATE_3D_NV 0x9091 +#define GL_AFFINE_2D_NV 0x9092 +#define GL_AFFINE_3D_NV 0x9094 +#define GL_TRANSPOSE_AFFINE_2D_NV 0x9096 +#define GL_TRANSPOSE_AFFINE_3D_NV 0x9098 +#define GL_UTF8_NV 0x909A +#define GL_UTF16_NV 0x909B +#define GL_BOUNDING_BOX_OF_BOUNDING_BOXES_NV 0x909C +#define GL_PATH_COMMAND_COUNT_NV 0x909D +#define GL_PATH_COORD_COUNT_NV 0x909E +#define GL_PATH_DASH_ARRAY_COUNT_NV 0x909F +#define GL_PATH_COMPUTED_LENGTH_NV 0x90A0 +#define GL_PATH_FILL_BOUNDING_BOX_NV 0x90A1 +#define GL_PATH_STROKE_BOUNDING_BOX_NV 0x90A2 +#define GL_SQUARE_NV 0x90A3 +#define GL_ROUND_NV 0x90A4 +#define GL_TRIANGULAR_NV 0x90A5 +#define GL_BEVEL_NV 0x90A6 +#define GL_MITER_REVERT_NV 0x90A7 +#define GL_MITER_TRUNCATE_NV 0x90A8 +#define GL_SKIP_MISSING_GLYPH_NV 0x90A9 +#define GL_USE_MISSING_GLYPH_NV 0x90AA +#define GL_PATH_ERROR_POSITION_NV 0x90AB +#define GL_ACCUM_ADJACENT_PAIRS_NV 0x90AD +#define GL_ADJACENT_PAIRS_NV 0x90AE +#define GL_FIRST_TO_REST_NV 0x90AF +#define GL_PATH_GEN_MODE_NV 0x90B0 +#define GL_PATH_GEN_COEFF_NV 0x90B1 +#define GL_PATH_GEN_COMPONENTS_NV 0x90B3 +#define GL_PATH_STENCIL_FUNC_NV 0x90B7 +#define GL_PATH_STENCIL_REF_NV 0x90B8 +#define GL_PATH_STENCIL_VALUE_MASK_NV 0x90B9 +#define GL_PATH_STENCIL_DEPTH_OFFSET_FACTOR_NV 0x90BD +#define GL_PATH_STENCIL_DEPTH_OFFSET_UNITS_NV 0x90BE +#define GL_PATH_COVER_DEPTH_FUNC_NV 0x90BF +#define GL_PATH_DASH_OFFSET_RESET_NV 0x90B4 +#define GL_MOVE_TO_RESETS_NV 0x90B5 +#define GL_MOVE_TO_CONTINUES_NV 0x90B6 +#define GL_CLOSE_PATH_NV 0x00 +#define GL_MOVE_TO_NV 0x02 +#define GL_RELATIVE_MOVE_TO_NV 0x03 +#define GL_LINE_TO_NV 0x04 +#define GL_RELATIVE_LINE_TO_NV 0x05 +#define GL_HORIZONTAL_LINE_TO_NV 0x06 +#define GL_RELATIVE_HORIZONTAL_LINE_TO_NV 0x07 +#define GL_VERTICAL_LINE_TO_NV 0x08 +#define GL_RELATIVE_VERTICAL_LINE_TO_NV 0x09 +#define GL_QUADRATIC_CURVE_TO_NV 0x0A +#define GL_RELATIVE_QUADRATIC_CURVE_TO_NV 0x0B +#define GL_CUBIC_CURVE_TO_NV 0x0C +#define GL_RELATIVE_CUBIC_CURVE_TO_NV 0x0D +#define GL_SMOOTH_QUADRATIC_CURVE_TO_NV 0x0E +#define GL_RELATIVE_SMOOTH_QUADRATIC_CURVE_TO_NV 0x0F +#define GL_SMOOTH_CUBIC_CURVE_TO_NV 0x10 +#define GL_RELATIVE_SMOOTH_CUBIC_CURVE_TO_NV 0x11 +#define GL_SMALL_CCW_ARC_TO_NV 0x12 +#define GL_RELATIVE_SMALL_CCW_ARC_TO_NV 0x13 +#define GL_SMALL_CW_ARC_TO_NV 0x14 +#define GL_RELATIVE_SMALL_CW_ARC_TO_NV 0x15 +#define GL_LARGE_CCW_ARC_TO_NV 0x16 +#define GL_RELATIVE_LARGE_CCW_ARC_TO_NV 0x17 +#define GL_LARGE_CW_ARC_TO_NV 0x18 +#define GL_RELATIVE_LARGE_CW_ARC_TO_NV 0x19 +#define GL_RESTART_PATH_NV 0xF0 +#define GL_DUP_FIRST_CUBIC_CURVE_TO_NV 0xF2 +#define GL_DUP_LAST_CUBIC_CURVE_TO_NV 0xF4 +#define GL_RECT_NV 0xF6 +#define GL_CIRCULAR_CCW_ARC_TO_NV 0xF8 +#define GL_CIRCULAR_CW_ARC_TO_NV 0xFA +#define GL_CIRCULAR_TANGENT_ARC_TO_NV 0xFC +#define GL_ARC_TO_NV 0xFE +#define GL_RELATIVE_ARC_TO_NV 0xFF +#define GL_BOLD_BIT_NV 0x01 +#define GL_ITALIC_BIT_NV 0x02 +#define GL_GLYPH_WIDTH_BIT_NV 0x01 +#define GL_GLYPH_HEIGHT_BIT_NV 0x02 +#define GL_GLYPH_HORIZONTAL_BEARING_X_BIT_NV 0x04 +#define GL_GLYPH_HORIZONTAL_BEARING_Y_BIT_NV 0x08 +#define GL_GLYPH_HORIZONTAL_BEARING_ADVANCE_BIT_NV 0x10 +#define GL_GLYPH_VERTICAL_BEARING_X_BIT_NV 0x20 +#define GL_GLYPH_VERTICAL_BEARING_Y_BIT_NV 0x40 +#define GL_GLYPH_VERTICAL_BEARING_ADVANCE_BIT_NV 0x80 +#define GL_GLYPH_HAS_KERNING_BIT_NV 0x100 +#define GL_FONT_X_MIN_BOUNDS_BIT_NV 0x00010000 +#define GL_FONT_Y_MIN_BOUNDS_BIT_NV 0x00020000 +#define GL_FONT_X_MAX_BOUNDS_BIT_NV 0x00040000 +#define GL_FONT_Y_MAX_BOUNDS_BIT_NV 0x00080000 +#define GL_FONT_UNITS_PER_EM_BIT_NV 0x00100000 +#define GL_FONT_ASCENDER_BIT_NV 0x00200000 +#define GL_FONT_DESCENDER_BIT_NV 0x00400000 +#define GL_FONT_HEIGHT_BIT_NV 0x00800000 +#define GL_FONT_MAX_ADVANCE_WIDTH_BIT_NV 0x01000000 +#define GL_FONT_MAX_ADVANCE_HEIGHT_BIT_NV 0x02000000 +#define GL_FONT_UNDERLINE_POSITION_BIT_NV 0x04000000 +#define GL_FONT_UNDERLINE_THICKNESS_BIT_NV 0x08000000 +#define GL_FONT_HAS_KERNING_BIT_NV 0x10000000 +#define GL_ROUNDED_RECT_NV 0xE8 +#define GL_RELATIVE_ROUNDED_RECT_NV 0xE9 +#define GL_ROUNDED_RECT2_NV 0xEA +#define GL_RELATIVE_ROUNDED_RECT2_NV 0xEB +#define GL_ROUNDED_RECT4_NV 0xEC +#define GL_RELATIVE_ROUNDED_RECT4_NV 0xED +#define GL_ROUNDED_RECT8_NV 0xEE +#define GL_RELATIVE_ROUNDED_RECT8_NV 0xEF +#define GL_RELATIVE_RECT_NV 0xF7 +#define GL_FONT_GLYPHS_AVAILABLE_NV 0x9368 +#define GL_FONT_TARGET_UNAVAILABLE_NV 0x9369 +#define GL_FONT_UNAVAILABLE_NV 0x936A +#define GL_FONT_UNINTELLIGIBLE_NV 0x936B +#define GL_CONIC_CURVE_TO_NV 0x1A +#define GL_RELATIVE_CONIC_CURVE_TO_NV 0x1B +#define GL_FONT_NUM_GLYPH_INDICES_BIT_NV 0x20000000 +#define GL_STANDARD_FONT_FORMAT_NV 0x936C +#define GL_PATH_PROJECTION_NV 0x1701 +#define GL_PATH_MODELVIEW_NV 0x1700 +#define GL_PATH_MODELVIEW_STACK_DEPTH_NV 0x0BA3 +#define GL_PATH_MODELVIEW_MATRIX_NV 0x0BA6 +#define GL_PATH_MAX_MODELVIEW_STACK_DEPTH_NV 0x0D36 +#define GL_PATH_TRANSPOSE_MODELVIEW_MATRIX_NV 0x84E3 +#define GL_PATH_PROJECTION_STACK_DEPTH_NV 0x0BA4 +#define GL_PATH_PROJECTION_MATRIX_NV 0x0BA7 +#define GL_PATH_MAX_PROJECTION_STACK_DEPTH_NV 0x0D38 +#define GL_PATH_TRANSPOSE_PROJECTION_MATRIX_NV 0x84E4 +#define GL_FRAGMENT_INPUT_NV 0x936D +typedef GLuint (APIENTRYP PFNGLGENPATHSNVPROC) (GLsizei range); +typedef void (APIENTRYP PFNGLDELETEPATHSNVPROC) (GLuint path, GLsizei range); +typedef GLboolean (APIENTRYP PFNGLISPATHNVPROC) (GLuint path); +typedef void (APIENTRYP PFNGLPATHCOMMANDSNVPROC) (GLuint path, GLsizei numCommands, const GLubyte *commands, GLsizei numCoords, GLenum coordType, const void *coords); +typedef void (APIENTRYP PFNGLPATHCOORDSNVPROC) (GLuint path, GLsizei numCoords, GLenum coordType, const void *coords); +typedef void (APIENTRYP PFNGLPATHSUBCOMMANDSNVPROC) (GLuint path, GLsizei commandStart, GLsizei commandsToDelete, GLsizei numCommands, const GLubyte *commands, GLsizei numCoords, GLenum coordType, const void *coords); +typedef void (APIENTRYP PFNGLPATHSUBCOORDSNVPROC) (GLuint path, GLsizei coordStart, GLsizei numCoords, GLenum coordType, const void *coords); +typedef void (APIENTRYP PFNGLPATHSTRINGNVPROC) (GLuint path, GLenum format, GLsizei length, const void *pathString); +typedef void (APIENTRYP PFNGLPATHGLYPHSNVPROC) (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLsizei numGlyphs, GLenum type, const void *charcodes, GLenum handleMissingGlyphs, GLuint pathParameterTemplate, GLfloat emScale); +typedef void (APIENTRYP PFNGLPATHGLYPHRANGENVPROC) (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint firstGlyph, GLsizei numGlyphs, GLenum handleMissingGlyphs, GLuint pathParameterTemplate, GLfloat emScale); +typedef void (APIENTRYP PFNGLWEIGHTPATHSNVPROC) (GLuint resultPath, GLsizei numPaths, const GLuint *paths, const GLfloat *weights); +typedef void (APIENTRYP PFNGLCOPYPATHNVPROC) (GLuint resultPath, GLuint srcPath); +typedef void (APIENTRYP PFNGLINTERPOLATEPATHSNVPROC) (GLuint resultPath, GLuint pathA, GLuint pathB, GLfloat weight); +typedef void (APIENTRYP PFNGLTRANSFORMPATHNVPROC) (GLuint resultPath, GLuint srcPath, GLenum transformType, const GLfloat *transformValues); +typedef void (APIENTRYP PFNGLPATHPARAMETERIVNVPROC) (GLuint path, GLenum pname, const GLint *value); +typedef void (APIENTRYP PFNGLPATHPARAMETERINVPROC) (GLuint path, GLenum pname, GLint value); +typedef void (APIENTRYP PFNGLPATHPARAMETERFVNVPROC) (GLuint path, GLenum pname, const GLfloat *value); +typedef void (APIENTRYP PFNGLPATHPARAMETERFNVPROC) (GLuint path, GLenum pname, GLfloat value); +typedef void (APIENTRYP PFNGLPATHDASHARRAYNVPROC) (GLuint path, GLsizei dashCount, const GLfloat *dashArray); +typedef void (APIENTRYP PFNGLPATHSTENCILFUNCNVPROC) (GLenum func, GLint ref, GLuint mask); +typedef void (APIENTRYP PFNGLPATHSTENCILDEPTHOFFSETNVPROC) (GLfloat factor, GLfloat units); +typedef void (APIENTRYP PFNGLSTENCILFILLPATHNVPROC) (GLuint path, GLenum fillMode, GLuint mask); +typedef void (APIENTRYP PFNGLSTENCILSTROKEPATHNVPROC) (GLuint path, GLint reference, GLuint mask); +typedef void (APIENTRYP PFNGLSTENCILFILLPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum fillMode, GLuint mask, GLenum transformType, const GLfloat *transformValues); +typedef void (APIENTRYP PFNGLSTENCILSTROKEPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLint reference, GLuint mask, GLenum transformType, const GLfloat *transformValues); +typedef void (APIENTRYP PFNGLPATHCOVERDEPTHFUNCNVPROC) (GLenum func); +typedef void (APIENTRYP PFNGLCOVERFILLPATHNVPROC) (GLuint path, GLenum coverMode); +typedef void (APIENTRYP PFNGLCOVERSTROKEPATHNVPROC) (GLuint path, GLenum coverMode); +typedef void (APIENTRYP PFNGLCOVERFILLPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); +typedef void (APIENTRYP PFNGLCOVERSTROKEPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); +typedef void (APIENTRYP PFNGLGETPATHPARAMETERIVNVPROC) (GLuint path, GLenum pname, GLint *value); +typedef void (APIENTRYP PFNGLGETPATHPARAMETERFVNVPROC) (GLuint path, GLenum pname, GLfloat *value); +typedef void (APIENTRYP PFNGLGETPATHCOMMANDSNVPROC) (GLuint path, GLubyte *commands); +typedef void (APIENTRYP PFNGLGETPATHCOORDSNVPROC) (GLuint path, GLfloat *coords); +typedef void (APIENTRYP PFNGLGETPATHDASHARRAYNVPROC) (GLuint path, GLfloat *dashArray); +typedef void (APIENTRYP PFNGLGETPATHMETRICSNVPROC) (GLbitfield metricQueryMask, GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLsizei stride, GLfloat *metrics); +typedef void (APIENTRYP PFNGLGETPATHMETRICRANGENVPROC) (GLbitfield metricQueryMask, GLuint firstPathName, GLsizei numPaths, GLsizei stride, GLfloat *metrics); +typedef void (APIENTRYP PFNGLGETPATHSPACINGNVPROC) (GLenum pathListMode, GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLfloat advanceScale, GLfloat kerningScale, GLenum transformType, GLfloat *returnedSpacing); +typedef GLboolean (APIENTRYP PFNGLISPOINTINFILLPATHNVPROC) (GLuint path, GLuint mask, GLfloat x, GLfloat y); +typedef GLboolean (APIENTRYP PFNGLISPOINTINSTROKEPATHNVPROC) (GLuint path, GLfloat x, GLfloat y); +typedef GLfloat (APIENTRYP PFNGLGETPATHLENGTHNVPROC) (GLuint path, GLsizei startSegment, GLsizei numSegments); +typedef GLboolean (APIENTRYP PFNGLPOINTALONGPATHNVPROC) (GLuint path, GLsizei startSegment, GLsizei numSegments, GLfloat distance, GLfloat *x, GLfloat *y, GLfloat *tangentX, GLfloat *tangentY); +typedef void (APIENTRYP PFNGLMATRIXLOAD3X2FNVPROC) (GLenum matrixMode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXLOAD3X3FNVPROC) (GLenum matrixMode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXLOADTRANSPOSE3X3FNVPROC) (GLenum matrixMode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXMULT3X2FNVPROC) (GLenum matrixMode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXMULT3X3FNVPROC) (GLenum matrixMode, const GLfloat *m); +typedef void (APIENTRYP PFNGLMATRIXMULTTRANSPOSE3X3FNVPROC) (GLenum matrixMode, const GLfloat *m); +typedef void (APIENTRYP PFNGLSTENCILTHENCOVERFILLPATHNVPROC) (GLuint path, GLenum fillMode, GLuint mask, GLenum coverMode); +typedef void (APIENTRYP PFNGLSTENCILTHENCOVERSTROKEPATHNVPROC) (GLuint path, GLint reference, GLuint mask, GLenum coverMode); +typedef void (APIENTRYP PFNGLSTENCILTHENCOVERFILLPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum fillMode, GLuint mask, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); +typedef void (APIENTRYP PFNGLSTENCILTHENCOVERSTROKEPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLint reference, GLuint mask, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); +typedef GLenum (APIENTRYP PFNGLPATHGLYPHINDEXRANGENVPROC) (GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint pathParameterTemplate, GLfloat emScale, GLuint baseAndCount[2]); +typedef GLenum (APIENTRYP PFNGLPATHGLYPHINDEXARRAYNVPROC) (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale); +typedef GLenum (APIENTRYP PFNGLPATHMEMORYGLYPHINDEXARRAYNVPROC) (GLuint firstPathName, GLenum fontTarget, GLsizeiptr fontSize, const void *fontData, GLsizei faceIndex, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale); +typedef void (APIENTRYP PFNGLPROGRAMPATHFRAGMENTINPUTGENNVPROC) (GLuint program, GLint location, GLenum genMode, GLint components, const GLfloat *coeffs); +typedef void (APIENTRYP PFNGLGETPROGRAMRESOURCEFVNVPROC) (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei count, GLsizei *length, GLfloat *params); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI GLuint APIENTRY glGenPathsNV (GLsizei range); +GLAPI void APIENTRY glDeletePathsNV (GLuint path, GLsizei range); +GLAPI GLboolean APIENTRY glIsPathNV (GLuint path); +GLAPI void APIENTRY glPathCommandsNV (GLuint path, GLsizei numCommands, const GLubyte *commands, GLsizei numCoords, GLenum coordType, const void *coords); +GLAPI void APIENTRY glPathCoordsNV (GLuint path, GLsizei numCoords, GLenum coordType, const void *coords); +GLAPI void APIENTRY glPathSubCommandsNV (GLuint path, GLsizei commandStart, GLsizei commandsToDelete, GLsizei numCommands, const GLubyte *commands, GLsizei numCoords, GLenum coordType, const void *coords); +GLAPI void APIENTRY glPathSubCoordsNV (GLuint path, GLsizei coordStart, GLsizei numCoords, GLenum coordType, const void *coords); +GLAPI void APIENTRY glPathStringNV (GLuint path, GLenum format, GLsizei length, const void *pathString); +GLAPI void APIENTRY glPathGlyphsNV (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLsizei numGlyphs, GLenum type, const void *charcodes, GLenum handleMissingGlyphs, GLuint pathParameterTemplate, GLfloat emScale); +GLAPI void APIENTRY glPathGlyphRangeNV (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint firstGlyph, GLsizei numGlyphs, GLenum handleMissingGlyphs, GLuint pathParameterTemplate, GLfloat emScale); +GLAPI void APIENTRY glWeightPathsNV (GLuint resultPath, GLsizei numPaths, const GLuint *paths, const GLfloat *weights); +GLAPI void APIENTRY glCopyPathNV (GLuint resultPath, GLuint srcPath); +GLAPI void APIENTRY glInterpolatePathsNV (GLuint resultPath, GLuint pathA, GLuint pathB, GLfloat weight); +GLAPI void APIENTRY glTransformPathNV (GLuint resultPath, GLuint srcPath, GLenum transformType, const GLfloat *transformValues); +GLAPI void APIENTRY glPathParameterivNV (GLuint path, GLenum pname, const GLint *value); +GLAPI void APIENTRY glPathParameteriNV (GLuint path, GLenum pname, GLint value); +GLAPI void APIENTRY glPathParameterfvNV (GLuint path, GLenum pname, const GLfloat *value); +GLAPI void APIENTRY glPathParameterfNV (GLuint path, GLenum pname, GLfloat value); +GLAPI void APIENTRY glPathDashArrayNV (GLuint path, GLsizei dashCount, const GLfloat *dashArray); +GLAPI void APIENTRY glPathStencilFuncNV (GLenum func, GLint ref, GLuint mask); +GLAPI void APIENTRY glPathStencilDepthOffsetNV (GLfloat factor, GLfloat units); +GLAPI void APIENTRY glStencilFillPathNV (GLuint path, GLenum fillMode, GLuint mask); +GLAPI void APIENTRY glStencilStrokePathNV (GLuint path, GLint reference, GLuint mask); +GLAPI void APIENTRY glStencilFillPathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum fillMode, GLuint mask, GLenum transformType, const GLfloat *transformValues); +GLAPI void APIENTRY glStencilStrokePathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLint reference, GLuint mask, GLenum transformType, const GLfloat *transformValues); +GLAPI void APIENTRY glPathCoverDepthFuncNV (GLenum func); +GLAPI void APIENTRY glCoverFillPathNV (GLuint path, GLenum coverMode); +GLAPI void APIENTRY glCoverStrokePathNV (GLuint path, GLenum coverMode); +GLAPI void APIENTRY glCoverFillPathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); +GLAPI void APIENTRY glCoverStrokePathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); +GLAPI void APIENTRY glGetPathParameterivNV (GLuint path, GLenum pname, GLint *value); +GLAPI void APIENTRY glGetPathParameterfvNV (GLuint path, GLenum pname, GLfloat *value); +GLAPI void APIENTRY glGetPathCommandsNV (GLuint path, GLubyte *commands); +GLAPI void APIENTRY glGetPathCoordsNV (GLuint path, GLfloat *coords); +GLAPI void APIENTRY glGetPathDashArrayNV (GLuint path, GLfloat *dashArray); +GLAPI void APIENTRY glGetPathMetricsNV (GLbitfield metricQueryMask, GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLsizei stride, GLfloat *metrics); +GLAPI void APIENTRY glGetPathMetricRangeNV (GLbitfield metricQueryMask, GLuint firstPathName, GLsizei numPaths, GLsizei stride, GLfloat *metrics); +GLAPI void APIENTRY glGetPathSpacingNV (GLenum pathListMode, GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLfloat advanceScale, GLfloat kerningScale, GLenum transformType, GLfloat *returnedSpacing); +GLAPI GLboolean APIENTRY glIsPointInFillPathNV (GLuint path, GLuint mask, GLfloat x, GLfloat y); +GLAPI GLboolean APIENTRY glIsPointInStrokePathNV (GLuint path, GLfloat x, GLfloat y); +GLAPI GLfloat APIENTRY glGetPathLengthNV (GLuint path, GLsizei startSegment, GLsizei numSegments); +GLAPI GLboolean APIENTRY glPointAlongPathNV (GLuint path, GLsizei startSegment, GLsizei numSegments, GLfloat distance, GLfloat *x, GLfloat *y, GLfloat *tangentX, GLfloat *tangentY); +GLAPI void APIENTRY glMatrixLoad3x2fNV (GLenum matrixMode, const GLfloat *m); +GLAPI void APIENTRY glMatrixLoad3x3fNV (GLenum matrixMode, const GLfloat *m); +GLAPI void APIENTRY glMatrixLoadTranspose3x3fNV (GLenum matrixMode, const GLfloat *m); +GLAPI void APIENTRY glMatrixMult3x2fNV (GLenum matrixMode, const GLfloat *m); +GLAPI void APIENTRY glMatrixMult3x3fNV (GLenum matrixMode, const GLfloat *m); +GLAPI void APIENTRY glMatrixMultTranspose3x3fNV (GLenum matrixMode, const GLfloat *m); +GLAPI void APIENTRY glStencilThenCoverFillPathNV (GLuint path, GLenum fillMode, GLuint mask, GLenum coverMode); +GLAPI void APIENTRY glStencilThenCoverStrokePathNV (GLuint path, GLint reference, GLuint mask, GLenum coverMode); +GLAPI void APIENTRY glStencilThenCoverFillPathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum fillMode, GLuint mask, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); +GLAPI void APIENTRY glStencilThenCoverStrokePathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLint reference, GLuint mask, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); +GLAPI GLenum APIENTRY glPathGlyphIndexRangeNV (GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint pathParameterTemplate, GLfloat emScale, GLuint baseAndCount[2]); +GLAPI GLenum APIENTRY glPathGlyphIndexArrayNV (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale); +GLAPI GLenum APIENTRY glPathMemoryGlyphIndexArrayNV (GLuint firstPathName, GLenum fontTarget, GLsizeiptr fontSize, const void *fontData, GLsizei faceIndex, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale); +GLAPI void APIENTRY glProgramPathFragmentInputGenNV (GLuint program, GLint location, GLenum genMode, GLint components, const GLfloat *coeffs); +GLAPI void APIENTRY glGetProgramResourcefvNV (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei count, GLsizei *length, GLfloat *params); +#endif +#endif /* GL_NV_path_rendering */ + +#ifndef GL_NV_path_rendering_shared_edge +#define GL_NV_path_rendering_shared_edge 1 +#define GL_SHARED_EDGE_NV 0xC0 +#endif /* GL_NV_path_rendering_shared_edge */ + +#ifndef GL_NV_representative_fragment_test +#define GL_NV_representative_fragment_test 1 +#define GL_REPRESENTATIVE_FRAGMENT_TEST_NV 0x937F +#endif /* GL_NV_representative_fragment_test */ + +#ifndef GL_NV_sample_locations +#define GL_NV_sample_locations 1 +#define GL_SAMPLE_LOCATION_SUBPIXEL_BITS_NV 0x933D +#define GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_NV 0x933E +#define GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_NV 0x933F +#define GL_PROGRAMMABLE_SAMPLE_LOCATION_TABLE_SIZE_NV 0x9340 +#define GL_SAMPLE_LOCATION_NV 0x8E50 +#define GL_PROGRAMMABLE_SAMPLE_LOCATION_NV 0x9341 +#define GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_NV 0x9342 +#define GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_NV 0x9343 +typedef void (APIENTRYP PFNGLFRAMEBUFFERSAMPLELOCATIONSFVNVPROC) (GLenum target, GLuint start, GLsizei count, const GLfloat *v); +typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERSAMPLELOCATIONSFVNVPROC) (GLuint framebuffer, GLuint start, GLsizei count, const GLfloat *v); +typedef void (APIENTRYP PFNGLRESOLVEDEPTHVALUESNVPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glFramebufferSampleLocationsfvNV (GLenum target, GLuint start, GLsizei count, const GLfloat *v); +GLAPI void APIENTRY glNamedFramebufferSampleLocationsfvNV (GLuint framebuffer, GLuint start, GLsizei count, const GLfloat *v); +GLAPI void APIENTRY glResolveDepthValuesNV (void); +#endif +#endif /* GL_NV_sample_locations */ + +#ifndef GL_NV_sample_mask_override_coverage +#define GL_NV_sample_mask_override_coverage 1 +#endif /* GL_NV_sample_mask_override_coverage */ + +#ifndef GL_NV_scissor_exclusive +#define GL_NV_scissor_exclusive 1 +#define GL_SCISSOR_TEST_EXCLUSIVE_NV 0x9555 +#define GL_SCISSOR_BOX_EXCLUSIVE_NV 0x9556 +typedef void (APIENTRYP PFNGLSCISSOREXCLUSIVENVPROC) (GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (APIENTRYP PFNGLSCISSOREXCLUSIVEARRAYVNVPROC) (GLuint first, GLsizei count, const GLint *v); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glScissorExclusiveNV (GLint x, GLint y, GLsizei width, GLsizei height); +GLAPI void APIENTRY glScissorExclusiveArrayvNV (GLuint first, GLsizei count, const GLint *v); +#endif +#endif /* GL_NV_scissor_exclusive */ + +#ifndef GL_NV_shader_atomic_counters +#define GL_NV_shader_atomic_counters 1 +#endif /* GL_NV_shader_atomic_counters */ + +#ifndef GL_NV_shader_atomic_float +#define GL_NV_shader_atomic_float 1 +#endif /* GL_NV_shader_atomic_float */ + +#ifndef GL_NV_shader_atomic_float64 +#define GL_NV_shader_atomic_float64 1 +#endif /* GL_NV_shader_atomic_float64 */ + +#ifndef GL_NV_shader_atomic_fp16_vector +#define GL_NV_shader_atomic_fp16_vector 1 +#endif /* GL_NV_shader_atomic_fp16_vector */ + +#ifndef GL_NV_shader_atomic_int64 +#define GL_NV_shader_atomic_int64 1 +#endif /* GL_NV_shader_atomic_int64 */ + +#ifndef GL_NV_shader_buffer_load +#define GL_NV_shader_buffer_load 1 +#define GL_BUFFER_GPU_ADDRESS_NV 0x8F1D +#define GL_GPU_ADDRESS_NV 0x8F34 +#define GL_MAX_SHADER_BUFFER_ADDRESS_NV 0x8F35 +typedef void (APIENTRYP PFNGLMAKEBUFFERRESIDENTNVPROC) (GLenum target, GLenum access); +typedef void (APIENTRYP PFNGLMAKEBUFFERNONRESIDENTNVPROC) (GLenum target); +typedef GLboolean (APIENTRYP PFNGLISBUFFERRESIDENTNVPROC) (GLenum target); +typedef void (APIENTRYP PFNGLMAKENAMEDBUFFERRESIDENTNVPROC) (GLuint buffer, GLenum access); +typedef void (APIENTRYP PFNGLMAKENAMEDBUFFERNONRESIDENTNVPROC) (GLuint buffer); +typedef GLboolean (APIENTRYP PFNGLISNAMEDBUFFERRESIDENTNVPROC) (GLuint buffer); +typedef void (APIENTRYP PFNGLGETBUFFERPARAMETERUI64VNVPROC) (GLenum target, GLenum pname, GLuint64EXT *params); +typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPARAMETERUI64VNVPROC) (GLuint buffer, GLenum pname, GLuint64EXT *params); +typedef void (APIENTRYP PFNGLGETINTEGERUI64VNVPROC) (GLenum value, GLuint64EXT *result); +typedef void (APIENTRYP PFNGLUNIFORMUI64NVPROC) (GLint location, GLuint64EXT value); +typedef void (APIENTRYP PFNGLUNIFORMUI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); +typedef void (APIENTRYP PFNGLGETUNIFORMUI64VNVPROC) (GLuint program, GLint location, GLuint64EXT *params); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMUI64NVPROC) (GLuint program, GLint location, GLuint64EXT value); +typedef void (APIENTRYP PFNGLPROGRAMUNIFORMUI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glMakeBufferResidentNV (GLenum target, GLenum access); +GLAPI void APIENTRY glMakeBufferNonResidentNV (GLenum target); +GLAPI GLboolean APIENTRY glIsBufferResidentNV (GLenum target); +GLAPI void APIENTRY glMakeNamedBufferResidentNV (GLuint buffer, GLenum access); +GLAPI void APIENTRY glMakeNamedBufferNonResidentNV (GLuint buffer); +GLAPI GLboolean APIENTRY glIsNamedBufferResidentNV (GLuint buffer); +GLAPI void APIENTRY glGetBufferParameterui64vNV (GLenum target, GLenum pname, GLuint64EXT *params); +GLAPI void APIENTRY glGetNamedBufferParameterui64vNV (GLuint buffer, GLenum pname, GLuint64EXT *params); +GLAPI void APIENTRY glGetIntegerui64vNV (GLenum value, GLuint64EXT *result); +GLAPI void APIENTRY glUniformui64NV (GLint location, GLuint64EXT value); +GLAPI void APIENTRY glUniformui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); +GLAPI void APIENTRY glGetUniformui64vNV (GLuint program, GLint location, GLuint64EXT *params); +GLAPI void APIENTRY glProgramUniformui64NV (GLuint program, GLint location, GLuint64EXT value); +GLAPI void APIENTRY glProgramUniformui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); +#endif +#endif /* GL_NV_shader_buffer_load */ + +#ifndef GL_NV_shader_buffer_store +#define GL_NV_shader_buffer_store 1 +#define GL_SHADER_GLOBAL_ACCESS_BARRIER_BIT_NV 0x00000010 +#endif /* GL_NV_shader_buffer_store */ + +#ifndef GL_NV_shader_subgroup_partitioned +#define GL_NV_shader_subgroup_partitioned 1 +#define GL_SUBGROUP_FEATURE_PARTITIONED_BIT_NV 0x00000100 +#endif /* GL_NV_shader_subgroup_partitioned */ + +#ifndef GL_NV_shader_texture_footprint +#define GL_NV_shader_texture_footprint 1 +#endif /* GL_NV_shader_texture_footprint */ + +#ifndef GL_NV_shader_thread_group +#define GL_NV_shader_thread_group 1 +#define GL_WARP_SIZE_NV 0x9339 +#define GL_WARPS_PER_SM_NV 0x933A +#define GL_SM_COUNT_NV 0x933B +#endif /* GL_NV_shader_thread_group */ + +#ifndef GL_NV_shader_thread_shuffle +#define GL_NV_shader_thread_shuffle 1 +#endif /* GL_NV_shader_thread_shuffle */ + +#ifndef GL_NV_shading_rate_image +#define GL_NV_shading_rate_image 1 +#define GL_SHADING_RATE_IMAGE_NV 0x9563 +#define GL_SHADING_RATE_NO_INVOCATIONS_NV 0x9564 +#define GL_SHADING_RATE_1_INVOCATION_PER_PIXEL_NV 0x9565 +#define GL_SHADING_RATE_1_INVOCATION_PER_1X2_PIXELS_NV 0x9566 +#define GL_SHADING_RATE_1_INVOCATION_PER_2X1_PIXELS_NV 0x9567 +#define GL_SHADING_RATE_1_INVOCATION_PER_2X2_PIXELS_NV 0x9568 +#define GL_SHADING_RATE_1_INVOCATION_PER_2X4_PIXELS_NV 0x9569 +#define GL_SHADING_RATE_1_INVOCATION_PER_4X2_PIXELS_NV 0x956A +#define GL_SHADING_RATE_1_INVOCATION_PER_4X4_PIXELS_NV 0x956B +#define GL_SHADING_RATE_2_INVOCATIONS_PER_PIXEL_NV 0x956C +#define GL_SHADING_RATE_4_INVOCATIONS_PER_PIXEL_NV 0x956D +#define GL_SHADING_RATE_8_INVOCATIONS_PER_PIXEL_NV 0x956E +#define GL_SHADING_RATE_16_INVOCATIONS_PER_PIXEL_NV 0x956F +#define GL_SHADING_RATE_IMAGE_BINDING_NV 0x955B +#define GL_SHADING_RATE_IMAGE_TEXEL_WIDTH_NV 0x955C +#define GL_SHADING_RATE_IMAGE_TEXEL_HEIGHT_NV 0x955D +#define GL_SHADING_RATE_IMAGE_PALETTE_SIZE_NV 0x955E +#define GL_MAX_COARSE_FRAGMENT_SAMPLES_NV 0x955F +#define GL_SHADING_RATE_SAMPLE_ORDER_DEFAULT_NV 0x95AE +#define GL_SHADING_RATE_SAMPLE_ORDER_PIXEL_MAJOR_NV 0x95AF +#define GL_SHADING_RATE_SAMPLE_ORDER_SAMPLE_MAJOR_NV 0x95B0 +typedef void (APIENTRYP PFNGLBINDSHADINGRATEIMAGENVPROC) (GLuint texture); +typedef void (APIENTRYP PFNGLGETSHADINGRATEIMAGEPALETTENVPROC) (GLuint viewport, GLuint entry, GLenum *rate); +typedef void (APIENTRYP PFNGLGETSHADINGRATESAMPLELOCATIONIVNVPROC) (GLenum rate, GLuint samples, GLuint index, GLint *location); +typedef void (APIENTRYP PFNGLSHADINGRATEIMAGEBARRIERNVPROC) (GLboolean synchronize); +typedef void (APIENTRYP PFNGLSHADINGRATEIMAGEPALETTENVPROC) (GLuint viewport, GLuint first, GLsizei count, const GLenum *rates); +typedef void (APIENTRYP PFNGLSHADINGRATESAMPLEORDERNVPROC) (GLenum order); +typedef void (APIENTRYP PFNGLSHADINGRATESAMPLEORDERCUSTOMNVPROC) (GLenum rate, GLuint samples, const GLint *locations); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBindShadingRateImageNV (GLuint texture); +GLAPI void APIENTRY glGetShadingRateImagePaletteNV (GLuint viewport, GLuint entry, GLenum *rate); +GLAPI void APIENTRY glGetShadingRateSampleLocationivNV (GLenum rate, GLuint samples, GLuint index, GLint *location); +GLAPI void APIENTRY glShadingRateImageBarrierNV (GLboolean synchronize); +GLAPI void APIENTRY glShadingRateImagePaletteNV (GLuint viewport, GLuint first, GLsizei count, const GLenum *rates); +GLAPI void APIENTRY glShadingRateSampleOrderNV (GLenum order); +GLAPI void APIENTRY glShadingRateSampleOrderCustomNV (GLenum rate, GLuint samples, const GLint *locations); +#endif +#endif /* GL_NV_shading_rate_image */ + +#ifndef GL_NV_stereo_view_rendering +#define GL_NV_stereo_view_rendering 1 +#endif /* GL_NV_stereo_view_rendering */ + +#ifndef GL_NV_texture_barrier +#define GL_NV_texture_barrier 1 +typedef void (APIENTRYP PFNGLTEXTUREBARRIERNVPROC) (void); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glTextureBarrierNV (void); +#endif +#endif /* GL_NV_texture_barrier */ + +#ifndef GL_NV_texture_rectangle_compressed +#define GL_NV_texture_rectangle_compressed 1 +#endif /* GL_NV_texture_rectangle_compressed */ + +#ifndef GL_NV_uniform_buffer_unified_memory +#define GL_NV_uniform_buffer_unified_memory 1 +#define GL_UNIFORM_BUFFER_UNIFIED_NV 0x936E +#define GL_UNIFORM_BUFFER_ADDRESS_NV 0x936F +#define GL_UNIFORM_BUFFER_LENGTH_NV 0x9370 +#endif /* GL_NV_uniform_buffer_unified_memory */ + +#ifndef GL_NV_vertex_attrib_integer_64bit +#define GL_NV_vertex_attrib_integer_64bit 1 +typedef void (APIENTRYP PFNGLVERTEXATTRIBL1I64NVPROC) (GLuint index, GLint64EXT x); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL2I64NVPROC) (GLuint index, GLint64EXT x, GLint64EXT y); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL3I64NVPROC) (GLuint index, GLint64EXT x, GLint64EXT y, GLint64EXT z); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL4I64NVPROC) (GLuint index, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL1I64VNVPROC) (GLuint index, const GLint64EXT *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL2I64VNVPROC) (GLuint index, const GLint64EXT *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL3I64VNVPROC) (GLuint index, const GLint64EXT *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL4I64VNVPROC) (GLuint index, const GLint64EXT *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL1UI64NVPROC) (GLuint index, GLuint64EXT x); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL2UI64NVPROC) (GLuint index, GLuint64EXT x, GLuint64EXT y); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL3UI64NVPROC) (GLuint index, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL4UI64NVPROC) (GLuint index, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL1UI64VNVPROC) (GLuint index, const GLuint64EXT *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL2UI64VNVPROC) (GLuint index, const GLuint64EXT *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL3UI64VNVPROC) (GLuint index, const GLuint64EXT *v); +typedef void (APIENTRYP PFNGLVERTEXATTRIBL4UI64VNVPROC) (GLuint index, const GLuint64EXT *v); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBLI64VNVPROC) (GLuint index, GLenum pname, GLint64EXT *params); +typedef void (APIENTRYP PFNGLGETVERTEXATTRIBLUI64VNVPROC) (GLuint index, GLenum pname, GLuint64EXT *params); +typedef void (APIENTRYP PFNGLVERTEXATTRIBLFORMATNVPROC) (GLuint index, GLint size, GLenum type, GLsizei stride); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glVertexAttribL1i64NV (GLuint index, GLint64EXT x); +GLAPI void APIENTRY glVertexAttribL2i64NV (GLuint index, GLint64EXT x, GLint64EXT y); +GLAPI void APIENTRY glVertexAttribL3i64NV (GLuint index, GLint64EXT x, GLint64EXT y, GLint64EXT z); +GLAPI void APIENTRY glVertexAttribL4i64NV (GLuint index, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); +GLAPI void APIENTRY glVertexAttribL1i64vNV (GLuint index, const GLint64EXT *v); +GLAPI void APIENTRY glVertexAttribL2i64vNV (GLuint index, const GLint64EXT *v); +GLAPI void APIENTRY glVertexAttribL3i64vNV (GLuint index, const GLint64EXT *v); +GLAPI void APIENTRY glVertexAttribL4i64vNV (GLuint index, const GLint64EXT *v); +GLAPI void APIENTRY glVertexAttribL1ui64NV (GLuint index, GLuint64EXT x); +GLAPI void APIENTRY glVertexAttribL2ui64NV (GLuint index, GLuint64EXT x, GLuint64EXT y); +GLAPI void APIENTRY glVertexAttribL3ui64NV (GLuint index, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); +GLAPI void APIENTRY glVertexAttribL4ui64NV (GLuint index, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); +GLAPI void APIENTRY glVertexAttribL1ui64vNV (GLuint index, const GLuint64EXT *v); +GLAPI void APIENTRY glVertexAttribL2ui64vNV (GLuint index, const GLuint64EXT *v); +GLAPI void APIENTRY glVertexAttribL3ui64vNV (GLuint index, const GLuint64EXT *v); +GLAPI void APIENTRY glVertexAttribL4ui64vNV (GLuint index, const GLuint64EXT *v); +GLAPI void APIENTRY glGetVertexAttribLi64vNV (GLuint index, GLenum pname, GLint64EXT *params); +GLAPI void APIENTRY glGetVertexAttribLui64vNV (GLuint index, GLenum pname, GLuint64EXT *params); +GLAPI void APIENTRY glVertexAttribLFormatNV (GLuint index, GLint size, GLenum type, GLsizei stride); +#endif +#endif /* GL_NV_vertex_attrib_integer_64bit */ + +#ifndef GL_NV_vertex_buffer_unified_memory +#define GL_NV_vertex_buffer_unified_memory 1 +#define GL_VERTEX_ATTRIB_ARRAY_UNIFIED_NV 0x8F1E +#define GL_ELEMENT_ARRAY_UNIFIED_NV 0x8F1F +#define GL_VERTEX_ATTRIB_ARRAY_ADDRESS_NV 0x8F20 +#define GL_VERTEX_ARRAY_ADDRESS_NV 0x8F21 +#define GL_NORMAL_ARRAY_ADDRESS_NV 0x8F22 +#define GL_COLOR_ARRAY_ADDRESS_NV 0x8F23 +#define GL_INDEX_ARRAY_ADDRESS_NV 0x8F24 +#define GL_TEXTURE_COORD_ARRAY_ADDRESS_NV 0x8F25 +#define GL_EDGE_FLAG_ARRAY_ADDRESS_NV 0x8F26 +#define GL_SECONDARY_COLOR_ARRAY_ADDRESS_NV 0x8F27 +#define GL_FOG_COORD_ARRAY_ADDRESS_NV 0x8F28 +#define GL_ELEMENT_ARRAY_ADDRESS_NV 0x8F29 +#define GL_VERTEX_ATTRIB_ARRAY_LENGTH_NV 0x8F2A +#define GL_VERTEX_ARRAY_LENGTH_NV 0x8F2B +#define GL_NORMAL_ARRAY_LENGTH_NV 0x8F2C +#define GL_COLOR_ARRAY_LENGTH_NV 0x8F2D +#define GL_INDEX_ARRAY_LENGTH_NV 0x8F2E +#define GL_TEXTURE_COORD_ARRAY_LENGTH_NV 0x8F2F +#define GL_EDGE_FLAG_ARRAY_LENGTH_NV 0x8F30 +#define GL_SECONDARY_COLOR_ARRAY_LENGTH_NV 0x8F31 +#define GL_FOG_COORD_ARRAY_LENGTH_NV 0x8F32 +#define GL_ELEMENT_ARRAY_LENGTH_NV 0x8F33 +#define GL_DRAW_INDIRECT_UNIFIED_NV 0x8F40 +#define GL_DRAW_INDIRECT_ADDRESS_NV 0x8F41 +#define GL_DRAW_INDIRECT_LENGTH_NV 0x8F42 +typedef void (APIENTRYP PFNGLBUFFERADDRESSRANGENVPROC) (GLenum pname, GLuint index, GLuint64EXT address, GLsizeiptr length); +typedef void (APIENTRYP PFNGLVERTEXFORMATNVPROC) (GLint size, GLenum type, GLsizei stride); +typedef void (APIENTRYP PFNGLNORMALFORMATNVPROC) (GLenum type, GLsizei stride); +typedef void (APIENTRYP PFNGLCOLORFORMATNVPROC) (GLint size, GLenum type, GLsizei stride); +typedef void (APIENTRYP PFNGLINDEXFORMATNVPROC) (GLenum type, GLsizei stride); +typedef void (APIENTRYP PFNGLTEXCOORDFORMATNVPROC) (GLint size, GLenum type, GLsizei stride); +typedef void (APIENTRYP PFNGLEDGEFLAGFORMATNVPROC) (GLsizei stride); +typedef void (APIENTRYP PFNGLSECONDARYCOLORFORMATNVPROC) (GLint size, GLenum type, GLsizei stride); +typedef void (APIENTRYP PFNGLFOGCOORDFORMATNVPROC) (GLenum type, GLsizei stride); +typedef void (APIENTRYP PFNGLVERTEXATTRIBFORMATNVPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride); +typedef void (APIENTRYP PFNGLVERTEXATTRIBIFORMATNVPROC) (GLuint index, GLint size, GLenum type, GLsizei stride); +typedef void (APIENTRYP PFNGLGETINTEGERUI64I_VNVPROC) (GLenum value, GLuint index, GLuint64EXT *result); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glBufferAddressRangeNV (GLenum pname, GLuint index, GLuint64EXT address, GLsizeiptr length); +GLAPI void APIENTRY glVertexFormatNV (GLint size, GLenum type, GLsizei stride); +GLAPI void APIENTRY glNormalFormatNV (GLenum type, GLsizei stride); +GLAPI void APIENTRY glColorFormatNV (GLint size, GLenum type, GLsizei stride); +GLAPI void APIENTRY glIndexFormatNV (GLenum type, GLsizei stride); +GLAPI void APIENTRY glTexCoordFormatNV (GLint size, GLenum type, GLsizei stride); +GLAPI void APIENTRY glEdgeFlagFormatNV (GLsizei stride); +GLAPI void APIENTRY glSecondaryColorFormatNV (GLint size, GLenum type, GLsizei stride); +GLAPI void APIENTRY glFogCoordFormatNV (GLenum type, GLsizei stride); +GLAPI void APIENTRY glVertexAttribFormatNV (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride); +GLAPI void APIENTRY glVertexAttribIFormatNV (GLuint index, GLint size, GLenum type, GLsizei stride); +GLAPI void APIENTRY glGetIntegerui64i_vNV (GLenum value, GLuint index, GLuint64EXT *result); +#endif +#endif /* GL_NV_vertex_buffer_unified_memory */ + +#ifndef GL_NV_viewport_array2 +#define GL_NV_viewport_array2 1 +#endif /* GL_NV_viewport_array2 */ + +#ifndef GL_NV_viewport_swizzle +#define GL_NV_viewport_swizzle 1 +#define GL_VIEWPORT_SWIZZLE_POSITIVE_X_NV 0x9350 +#define GL_VIEWPORT_SWIZZLE_NEGATIVE_X_NV 0x9351 +#define GL_VIEWPORT_SWIZZLE_POSITIVE_Y_NV 0x9352 +#define GL_VIEWPORT_SWIZZLE_NEGATIVE_Y_NV 0x9353 +#define GL_VIEWPORT_SWIZZLE_POSITIVE_Z_NV 0x9354 +#define GL_VIEWPORT_SWIZZLE_NEGATIVE_Z_NV 0x9355 +#define GL_VIEWPORT_SWIZZLE_POSITIVE_W_NV 0x9356 +#define GL_VIEWPORT_SWIZZLE_NEGATIVE_W_NV 0x9357 +#define GL_VIEWPORT_SWIZZLE_X_NV 0x9358 +#define GL_VIEWPORT_SWIZZLE_Y_NV 0x9359 +#define GL_VIEWPORT_SWIZZLE_Z_NV 0x935A +#define GL_VIEWPORT_SWIZZLE_W_NV 0x935B +typedef void (APIENTRYP PFNGLVIEWPORTSWIZZLENVPROC) (GLuint index, GLenum swizzlex, GLenum swizzley, GLenum swizzlez, GLenum swizzlew); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glViewportSwizzleNV (GLuint index, GLenum swizzlex, GLenum swizzley, GLenum swizzlez, GLenum swizzlew); +#endif +#endif /* GL_NV_viewport_swizzle */ + +#ifndef GL_OVR_multiview +#define GL_OVR_multiview 1 +#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_NUM_VIEWS_OVR 0x9630 +#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_BASE_VIEW_INDEX_OVR 0x9632 +#define GL_MAX_VIEWS_OVR 0x9631 +#define GL_FRAMEBUFFER_INCOMPLETE_VIEW_TARGETS_OVR 0x9633 +typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTUREMULTIVIEWOVRPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint baseViewIndex, GLsizei numViews); +#ifdef GL_GLEXT_PROTOTYPES +GLAPI void APIENTRY glFramebufferTextureMultiviewOVR (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint baseViewIndex, GLsizei numViews); +#endif +#endif /* GL_OVR_multiview */ + +#ifndef GL_OVR_multiview2 +#define GL_OVR_multiview2 1 +#endif /* GL_OVR_multiview2 */ + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/lib/khrplatform.h b/lib/khrplatform.h new file mode 100644 index 0000000..dd22d92 --- /dev/null +++ b/lib/khrplatform.h @@ -0,0 +1,290 @@ +#ifndef __khrplatform_h_ +#define __khrplatform_h_ + +/* +** Copyright (c) 2008-2018 The Khronos Group Inc. +** +** Permission is hereby granted, free of charge, to any person obtaining a +** copy of this software and/or associated documentation files (the +** "Materials"), to deal in the Materials without restriction, including +** without limitation the rights to use, copy, modify, merge, publish, +** distribute, sublicense, and/or sell copies of the Materials, and to +** permit persons to whom the Materials are furnished to do so, subject to +** the following conditions: +** +** The above copyright notice and this permission notice shall be included +** in all copies or substantial portions of the Materials. +** +** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. +*/ + +/* Khronos platform-specific types and definitions. + * + * The master copy of khrplatform.h is maintained in the Khronos EGL + * Registry repository at https://github.com/KhronosGroup/EGL-Registry + * The last semantic modification to khrplatform.h was at commit ID: + * 67a3e0864c2d75ea5287b9f3d2eb74a745936692 + * + * Adopters may modify this file to suit their platform. Adopters are + * encouraged to submit platform specific modifications to the Khronos + * group so that they can be included in future versions of this file. + * Please submit changes by filing pull requests or issues on + * the EGL Registry repository linked above. + * + * + * See the Implementer's Guidelines for information about where this file + * should be located on your system and for more details of its use: + * http://www.khronos.org/registry/implementers_guide.pdf + * + * This file should be included as + * #include <KHR/khrplatform.h> + * by Khronos client API header files that use its types and defines. + * + * The types in khrplatform.h should only be used to define API-specific types. + * + * Types defined in khrplatform.h: + * khronos_int8_t signed 8 bit + * khronos_uint8_t unsigned 8 bit + * khronos_int16_t signed 16 bit + * khronos_uint16_t unsigned 16 bit + * khronos_int32_t signed 32 bit + * khronos_uint32_t unsigned 32 bit + * khronos_int64_t signed 64 bit + * khronos_uint64_t unsigned 64 bit + * khronos_intptr_t signed same number of bits as a pointer + * khronos_uintptr_t unsigned same number of bits as a pointer + * khronos_ssize_t signed size + * khronos_usize_t unsigned size + * khronos_float_t signed 32 bit floating point + * khronos_time_ns_t unsigned 64 bit time in nanoseconds + * khronos_utime_nanoseconds_t unsigned time interval or absolute time in + * nanoseconds + * khronos_stime_nanoseconds_t signed time interval in nanoseconds + * khronos_boolean_enum_t enumerated boolean type. This should + * only be used as a base type when a client API's boolean type is + * an enum. Client APIs which use an integer or other type for + * booleans cannot use this as the base type for their boolean. + * + * Tokens defined in khrplatform.h: + * + * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. + * + * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. + * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. + * + * Calling convention macros defined in this file: + * KHRONOS_APICALL + * KHRONOS_APIENTRY + * KHRONOS_APIATTRIBUTES + * + * These may be used in function prototypes as: + * + * KHRONOS_APICALL void KHRONOS_APIENTRY funcname( + * int arg1, + * int arg2) KHRONOS_APIATTRIBUTES; + */ + +#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC) +# define KHRONOS_STATIC 1 +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APICALL + *------------------------------------------------------------------------- + * This precedes the return type of the function in the function prototype. + */ +#if defined(KHRONOS_STATIC) + /* If the preprocessor constant KHRONOS_STATIC is defined, make the + * header compatible with static linking. */ +# define KHRONOS_APICALL +#elif defined(_WIN32) +# define KHRONOS_APICALL __declspec(dllimport) +#elif defined (__SYMBIAN32__) +# define KHRONOS_APICALL IMPORT_C +#elif defined(__ANDROID__) +# define KHRONOS_APICALL __attribute__((visibility("default"))) +#else +# define KHRONOS_APICALL +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APIENTRY + *------------------------------------------------------------------------- + * This follows the return type of the function and precedes the function + * name in the function prototype. + */ +#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) + /* Win32 but not WinCE */ +# define KHRONOS_APIENTRY __stdcall +#else +# define KHRONOS_APIENTRY +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APIATTRIBUTES + *------------------------------------------------------------------------- + * This follows the closing parenthesis of the function prototype arguments. + */ +#if defined (__ARMCC_2__) +#define KHRONOS_APIATTRIBUTES __softfp +#else +#define KHRONOS_APIATTRIBUTES +#endif + +/*------------------------------------------------------------------------- + * basic type definitions + *-----------------------------------------------------------------------*/ +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) + + +/* + * Using <stdint.h> + */ +#include <stdint.h> +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(__VMS ) || defined(__sgi) + +/* + * Using <inttypes.h> + */ +#include <inttypes.h> +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) + +/* + * Win32 + */ +typedef __int32 khronos_int32_t; +typedef unsigned __int32 khronos_uint32_t; +typedef __int64 khronos_int64_t; +typedef unsigned __int64 khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(__sun__) || defined(__digital__) + +/* + * Sun or Digital + */ +typedef int khronos_int32_t; +typedef unsigned int khronos_uint32_t; +#if defined(__arch64__) || defined(_LP64) +typedef long int khronos_int64_t; +typedef unsigned long int khronos_uint64_t; +#else +typedef long long int khronos_int64_t; +typedef unsigned long long int khronos_uint64_t; +#endif /* __arch64__ */ +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif 0 + +/* + * Hypothetical platform with no float or int64 support + */ +typedef int khronos_int32_t; +typedef unsigned int khronos_uint32_t; +#define KHRONOS_SUPPORT_INT64 0 +#define KHRONOS_SUPPORT_FLOAT 0 + +#else + +/* + * Generic fallback + */ +#include <stdint.h> +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#endif + + +/* + * Types that are (so far) the same on all platforms + */ +typedef signed char khronos_int8_t; +typedef unsigned char khronos_uint8_t; +typedef signed short int khronos_int16_t; +typedef unsigned short int khronos_uint16_t; + +/* + * Types that differ between LLP64 and LP64 architectures - in LLP64, + * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears + * to be the only LLP64 architecture in current use. + */ +#ifdef _WIN64 +typedef signed long long int khronos_intptr_t; +typedef unsigned long long int khronos_uintptr_t; +typedef signed long long int khronos_ssize_t; +typedef unsigned long long int khronos_usize_t; +#else +typedef signed long int khronos_intptr_t; +typedef unsigned long int khronos_uintptr_t; +typedef signed long int khronos_ssize_t; +typedef unsigned long int khronos_usize_t; +#endif + +#if KHRONOS_SUPPORT_FLOAT +/* + * Float type + */ +typedef float khronos_float_t; +#endif + +#if KHRONOS_SUPPORT_INT64 +/* Time types + * + * These types can be used to represent a time interval in nanoseconds or + * an absolute Unadjusted System Time. Unadjusted System Time is the number + * of nanoseconds since some arbitrary system event (e.g. since the last + * time the system booted). The Unadjusted System Time is an unsigned + * 64 bit value that wraps back to 0 every 584 years. Time intervals + * may be either signed or unsigned. + */ +typedef khronos_uint64_t khronos_utime_nanoseconds_t; +typedef khronos_int64_t khronos_stime_nanoseconds_t; +#endif + +/* + * Dummy value used to pad enum types to 32 bits. + */ +#ifndef KHRONOS_MAX_ENUM +#define KHRONOS_MAX_ENUM 0x7FFFFFFF +#endif + +/* + * Enumerated boolean type + * + * Values other than zero should be considered to be true. Therefore + * comparisons should not be made against KHRONOS_TRUE. + */ +typedef enum { + KHRONOS_FALSE = 0, + KHRONOS_TRUE = 1, + KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM +} khronos_boolean_enum_t; + +#endif /* __khrplatform_h_ */ @@ -0,0 +1,468 @@ +// directory to take png images from +#define INPUT_DIR "i" +// directory to output cropped png images to +#define OUTPUT_DIR "o" +// aspect ratio = width / height +#define ASPECT_RATIO (2.0f/3.0f) +// output width in pixels. all output images be resized to this width. +#define OUTPUT_WIDTH 1550 +// starting scale for frame +#define STARTING_SCALE 0.8f + +#if __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wimplicit-fallthrough" +#pragma GCC diagnostic ignored "-Wconversion" +#endif +#include <SDL.h> +#include <dirent.h> +#define STBI_ONLY_PNG +#define STB_IMAGE_IMPLEMENTATION +#define STB_IMAGE_STATIC +#include "stb_image.h" +#define STB_IMAGE_RESIZE_IMPLEMENTATION +#define STB_IMAGE_RESIZE_STATIC +#include "stb_image_resize.h" +#define STB_IMAGE_WRITE_IMPLEMENTATION +#define STB_IMAGE_WRITE_STATIC +#include "stb_image_write.h" +#if __GNUC__ +#pragma GCC diagnostic pop +#endif +#include <stdbool.h> +#if _WIN32 || WINDOWS +#include <windows.h> +#endif + +#include "base.h" +#include "util.c" +#include "gl.c" +#include "math.c" +#include "time.c" +#include "arr.c" + +static void die(char const *fmt, ...) { + char buf[256] = {0}; + + va_list args; + va_start(args, fmt); + vsnprintf(buf, sizeof buf - 1, fmt, args); + va_end(args); + + // show a message box, and if that fails, print it + if (SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error", buf, NULL) < 0) { + debug_println("%s\n", buf); + } + + exit(EXIT_FAILURE); +} + +#if DEBUG +static void APIENTRY gl_message_callback(GLenum source, GLenum type, unsigned int id, GLenum severity, + GLsizei length, const char *message, const void *userParam) { + (void)source; (void)type; (void)id; (void)length; (void)userParam; + if (severity == GL_DEBUG_SEVERITY_NOTIFICATION) return; + debug_println("Message from OpenGL: %s.", message); +} +#endif + + +static void load_texture(char const *filename, int *width, int *height, unsigned char *image, GLuint tex) { + int c; + int w, h; + unsigned char *data = stbi_load(filename, &w, &h, &c, 1); + if (data) { + memcpy(image, data, (size_t)w*(size_t)h); + // flip vertically + for (int y = 0; y < h/2; ++y) { + int oy = h-1-y; + for (int x = 0; x < w; ++x) { + unsigned char *a = &data[y*w+x], *b = &data[oy*w+x]; + unsigned char tmp = *a; + *a = *b; + *b = tmp; + } + } + glBindTexture(GL_TEXTURE_2D, tex); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, w, h, 0, GL_RED, GL_UNSIGNED_BYTE, data); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + *width = w; + *height = h; + stbi_image_free(data); + } else { + printf("Error loading %s\n", filename); + } +} + +static int qsort_strcmp(const void *a, const void *b) { + return strcmp(*(const char *const *)a, *(const char *const *)b); +} + +int main(int argc, char **argv) { + mkdir(OUTPUT_DIR, 0755); + DIR *input_dir = opendir(INPUT_DIR); + static char const *filenames[10000]; + int nfiles = 0; + { + struct dirent *ent; + while ((ent = readdir(input_dir))) { + if (ent->d_type == DT_REG) { + char const *name = ent->d_name; + if (strchr(name, '.') && strcmp(strchr(name, '.'), ".png") == 0) + filenames[nfiles++] = strdup(ent->d_name); + } + } + qsort(filenames, (size_t)nfiles, sizeof *filenames, qsort_strcmp); + } + if (nfiles == 0) { + printf("No files!\n"); + return -1; + } + + int file_idx = 0; + if (argc < 2) { + FILE *fp = fopen("pos.txt", "r"); + if (fp) { + fscanf(fp, "%d", &file_idx); + fclose(fp); + } + } else { + file_idx = atoi(argv[1]); + } + + setbuf(stdout, NULL); + + SDL_Init(SDL_INIT_VIDEO); + SDL_Window *window = SDL_CreateWindow("cropper", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, + 1280, 720, SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL); + + int gl_version_major = 0, gl_version_minor = 0; + struct { + int major; + int minor; + } gl_versions[] = { + // first try gl_versions[0], then gl_versions[1], etc. + {4, 3}, // debug context support + {3, 2}, // framebuffer support + {3, 0}, // vao support + }; + + SDL_GLContext *glctx = NULL; + + for (size_t i = 0; i < arr_count(gl_versions); ++i) { + gl_version_major = gl_versions[i].major; + gl_version_minor = gl_versions[i].minor; + SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, gl_version_major); + SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, gl_version_minor); + #if DEBUG + SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, gl_version_major * 100 + gl_version_minor >= 403 ? SDL_GL_CONTEXT_DEBUG_FLAG : 0); + #endif + + glctx = SDL_GL_CreateContext(window); + if (glctx) { + #if DEBUG + print("Got GL %d.%d context.\n", gl_version_major, gl_version_minor); + #endif + break; + } else { + debug_println("Couldn't get GL %d.%d context.", gl_version_major, gl_version_minor); + } + } + if (!glctx) + die("%s\n(your GPU/graphics drivers might be too old)", SDL_GetError()); + gl_get_procs(); + +#if DEBUG + if (gl_version_major * 100 + gl_version_minor >= 403) { + GLint flags = 0; + glGetIntegerv(GL_CONTEXT_FLAGS, &flags); + glEnable(GL_DEBUG_OUTPUT); + glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS); + if (flags & GL_CONTEXT_FLAG_DEBUG_BIT) { + // set up debug message callback + glDebugMessageCallback(gl_message_callback, NULL); + glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, NULL, GL_TRUE); + printf("Set up debug message callback\n"); + } + } +#endif + + SDL_GL_SetSwapInterval(1); + + + Uint32 last_frame = SDL_GetTicks(); + + bool quit = false; + + GLuint shader = gl_create_program_from_files("v.glsl", "f.glsl"); + GLuint vbo = gl_gen_buffer(), vao = gl_gen_vertex_array(); + GLuint v_pos = gl_attrib_loc(shader, "v_pos"); + GLuint v_tex_coord = gl_attrib_loc(shader, "v_tex_coord"); + GLuint v_color = gl_attrib_loc(shader, "v_color"); + GLint u_transform = gl_uniform_loc(shader, "u_transform"); + GLint u_aspect_ratio = gl_uniform_loc(shader, "u_aspect_ratio"); + GLint u_use_texture = gl_uniform_loc(shader, "u_use_texture"); + GLint u_texture = gl_uniform_loc(shader, "u_texture"); + + int tex_width = 0, tex_height = 0; + unsigned char *tex_image = malloc(32ul<<20); + GLuint texture = 0; + glGenTextures(1, &texture); + char path[1024]; + sprintf(path, "%s/%s", INPUT_DIR, filenames[file_idx]); + load_texture(path, &tex_width, &tex_height, tex_image, texture); + + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + + float frame_aspect_ratio = ASPECT_RATIO; + float frame_scale = OUTPUT_WIDTH * STARTING_SCALE; + + unsigned char *output = malloc(32ul<<20); + + int out_idx = 1; + float out_idx_animation = 0; + int out_idx_animation_number = 0; + + while (!quit) { + Uint32 this_frame = SDL_GetTicks(); + float dt = (float)(this_frame - last_frame) * 0.001f; + dt = minf(dt, 0.1f); // set a maximum frame time to avoid weird edge cases involving really long frames + last_frame = this_frame; + + float window_width, window_height; + { + int w = 0, h = 0; + SDL_GetWindowSize(window, &w, &h); + window_width = (float)w; + window_height = (float)h; + glViewport(0, 0, w, h); + } + float aspect_ratio = window_width / window_height; + + bool clicked = false; + + + Uint8 const *keys_down = SDL_GetKeyboardState(NULL); (void)keys_down; + + SDL_Event event; + while (SDL_PollEvent(&event)) { + switch (event.type) { + case SDL_QUIT: + quit = true; + break; + case SDL_KEYDOWN: + switch (event.key.keysym.sym) { + case SDLK_r: + frame_scale = STARTING_SCALE * OUTPUT_WIDTH; + break; + case SDLK_n: + case SDLK_SPACE: + ++file_idx; + file_idx %= nfiles; + goto reload; + case SDLK_p: + file_idx = (file_idx + nfiles-1) % nfiles; + goto reload; + reload: + sprintf(path, "%s/%s", INPUT_DIR, filenames[file_idx]); + load_texture(path, &tex_width, &tex_height, tex_image, texture); + out_idx = 1; + break; + case SDLK_1: out_idx = 1; break; + case SDLK_2: out_idx = 2; break; + case SDLK_3: out_idx = 3; break; + case SDLK_4: out_idx = 4; break; + case SDLK_5: out_idx = 5; break; + case SDLK_6: out_idx = 6; break; + case SDLK_7: out_idx = 7; break; + case SDLK_8: out_idx = 8; break; + case SDLK_9: out_idx = 9; break; + } + break; + case SDL_MOUSEWHEEL: { + float scale_speed = 30.0f; + frame_scale += (float)event.wheel.y * scale_speed; + if (frame_scale / frame_aspect_ratio > tex_height) frame_scale = tex_height * frame_aspect_ratio; + if (frame_scale > tex_width) frame_scale = tex_width; + if (frame_scale < 50) frame_scale = 50; + } break; + case SDL_MOUSEBUTTONDOWN: { + clicked = true; + } break; + } + } + + int imouse_x = 0, imouse_y = 0; + SDL_GetMouseState(&imouse_x, &imouse_y); + imouse_y = (int)window_height-1-imouse_y; + float mouse_x = ((float)imouse_x / window_width * 2 - 1) * aspect_ratio; + float mouse_y = (float)imouse_y / window_height * 2 - 1; + + + glClearColor(0, 0, 0, 1); + glClear(GL_COLOR_BUFFER_BIT); + + typedef struct { + v2 pos; + v2 tex_coord; + v4 color; + } Vertex; + Vertex *vertices = NULL; + + int iframe_w = (int)frame_scale; + int iframe_h = (int)frame_scale / frame_aspect_ratio; + int mouse_tex_x, mouse_tex_y; + float frame_dx, frame_dy; // half-width and half-height of cropping frame + + { + float x = (float)tex_width / (float)tex_height; + float y = 1; + + if (x > aspect_ratio) { + x = 1; + y = (float)tex_height / (float)tex_width; + } + + frame_dx = (float)iframe_w / (float)tex_width * x; + frame_dy = (float)iframe_h / (float)tex_height * y; + + if (mouse_x - frame_dx < -x) mouse_x = -x + frame_dx; + if (mouse_x + frame_dx > +x) mouse_x = +x - frame_dx; + if (mouse_y - frame_dy < -y) mouse_y = -y + frame_dy; + if (mouse_y + frame_dy > +y) mouse_y = +y - frame_dy; + + mouse_tex_x = (int)((float)tex_width * (mouse_x / x * 0.5f + 0.5f)); + mouse_tex_y = tex_height-1-(int)((float)tex_height * (mouse_y / y * 0.5f + 0.5f)); + int cx1 = mouse_tex_x - iframe_w / 2; + //int cx2 = mouse_tex_x + iframe_w / 2; + int cy1 = mouse_tex_y - iframe_h / 2; + //int cy2 = mouse_tex_y + iframe_h / 2; + if (cx1 < 0) cx1 = 0; + if (cy1 < 0) cy1 = 0; + if (cx1 + iframe_w > tex_width) iframe_w = tex_width - cx1; + if (cy1 + iframe_h > tex_height) iframe_h = tex_height - cy1; + if (clicked) { + int out_w = OUTPUT_WIDTH; + int out_h = (int)(out_w / ASPECT_RATIO); + stbir_resize_uint8(&tex_image[cy1*tex_width+cx1], iframe_w, iframe_h, tex_width, + output, out_w, out_h, out_w, 1); + sprintf(path, "%s/%.*s-%d.png", OUTPUT_DIR, (int)strcspn(filenames[file_idx], "."), filenames[file_idx], out_idx); + out_idx_animation = 1; + out_idx_animation_number = out_idx; + stbi_write_png(path, out_w, out_h, 1, output, out_w); + ++out_idx; + } + + arr_add(vertices, ((Vertex){{-x, -y}, {0, 0}, {1,1,1,1}})); + arr_add(vertices, ((Vertex){{+x, -y}, {1, 0}, {1,1,1,1}})); + arr_add(vertices, ((Vertex){{-x, +y}, {0, 1}, {1,1,1,1}})); + arr_add(vertices, ((Vertex){{+x, +y}, {1, 1}, {1,1,1,1}})); + } + + GLushort *elements = NULL; + arr_add(elements, 0); + arr_add(elements, 1); + arr_add(elements, 2); + arr_add(elements, 1); + arr_add(elements, 3); + arr_add(elements, 2); + + glBindVertexArray(vao); + glBindBuffer(GL_ARRAY_BUFFER, vbo); + glBufferData(GL_ARRAY_BUFFER, arr_size_in_bytes(vertices), vertices, GL_STREAM_DRAW); + arr_clear(vertices); + glVertexAttribPointer(v_pos, 2, GL_FLOAT, 0, sizeof(Vertex), (void *)offsetof(Vertex, pos)); + glVertexAttribPointer(v_tex_coord, 2, GL_FLOAT, 0, sizeof(Vertex), (void *)offsetof(Vertex, tex_coord)); + glVertexAttribPointer(v_color, 4, GL_FLOAT, 0, sizeof(Vertex), (void *)offsetof(Vertex, color)); + glEnableVertexAttribArray(v_pos); + glEnableVertexAttribArray(v_tex_coord); + glEnableVertexAttribArray(v_color); + + glUseProgram(shader); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, texture); + glUniform1i(u_use_texture, 1); + glUniform1i(u_texture, 0); + m3 transform = m3_identity; + m3_uniform(u_transform, &transform); + glUniform1f(u_aspect_ratio, aspect_ratio); + glBindVertexArray(vao); + glDrawElements(GL_TRIANGLES, arr_len(elements), GL_UNSIGNED_SHORT, elements); + arr_clear(elements); + + { + v4 c = {0.5f,0,0.5f,0.2f}; + float x1 = mouse_x - frame_dx; + float x2 = mouse_x + frame_dx; + float y1 = mouse_y - frame_dy; + float y2 = mouse_y + frame_dy; + // show frame + arr_add(vertices, ((Vertex){{x1, y1}, {0, 0}, c})); + arr_add(vertices, ((Vertex){{x2, y1}, {0, 0}, c})); + arr_add(vertices, ((Vertex){{x1, y2}, {0, 0}, c})); + arr_add(vertices, ((Vertex){{x2, y2}, {0, 0}, c})); + arr_add(elements, 0); + arr_add(elements, 1); + arr_add(elements, 2); + arr_add(elements, 1); + arr_add(elements, 3); + arr_add(elements, 2); + + if (out_idx_animation > 0) { + v4 c2 = {0, 1, 0, out_idx_animation}; + // show out_idx + out_idx_animation -= 0.0016f; + int n = out_idx_animation_number; + for (int i = 0; i < n; ++i) { + float dx = 0.03f; + float dy = 0.03f; + float x = -0.9f + dx * 2 * 1.2f * (float)i; + float y = -0.9f; + GLushort e = (GLushort)arr_len(vertices); + arr_add(elements, e+0); + arr_add(elements, e+1); + arr_add(elements, e+2); + arr_add(elements, e+1); + arr_add(elements, e+3); + arr_add(elements, e+2); + + arr_add(vertices, ((Vertex){{x-dx, y-dy}, {0, 0}, c2})); + arr_add(vertices, ((Vertex){{x+dx, y-dy}, {0, 0}, c2})); + arr_add(vertices, ((Vertex){{x-dx, y+dy}, {0, 0}, c2})); + arr_add(vertices, ((Vertex){{x+dx, y+dy}, {0, 0}, c2})); + } + } + } + + glBindVertexArray(vao); + glBindBuffer(GL_ARRAY_BUFFER, vbo); + glBufferData(GL_ARRAY_BUFFER, arr_size_in_bytes(vertices), vertices, GL_STREAM_DRAW); + arr_clear(vertices); + glVertexAttribPointer(v_pos, 2, GL_FLOAT, 0, sizeof(Vertex), (void *)offsetof(Vertex, pos)); + glVertexAttribPointer(v_color, 4, GL_FLOAT, 0, sizeof(Vertex), (void *)offsetof(Vertex, color)); + glEnableVertexAttribArray(v_pos); + glEnableVertexAttribArray(v_color); + + glUseProgram(shader); + glUniform1i(u_use_texture, 0); + m3_uniform(u_transform, &transform); + glUniform1f(u_aspect_ratio, aspect_ratio); + glBindVertexArray(vao); + glDrawElements(GL_TRIANGLES, arr_len(elements), GL_UNSIGNED_SHORT, elements); + arr_clear(elements); + + + SDL_GL_SwapWindow(window); + } + + SDL_DestroyWindow(window); + FILE *fp = fopen("pos.txt", "w"); + if (fp) { + fprintf(fp, "%d", file_idx); + fclose(fp); + } + return 0; +} @@ -0,0 +1,1128 @@ +#ifdef MATH_GL +#undef MATH_GL +#define MATH_GL 1 +#endif + +#include <stdlib.h> +#include <stdio.h> +#include <assert.h> + +#define PIf 3.14159265358979f +#define HALF_PIf 1.5707963267948966f +#define TAUf 6.283185307179586f +#define SQRT2f 1.4142135623730951f +#define HALF_SQRT2f 0.7071067811865476f +#define SQRT3f 1.7320508075688772f +#define HALF_SQRT3f 0.8660254037844386f +// sqrt(2/3) +#define SQRT_2_3f 0.816496580928f + +#include <math.h> + +static inline float degrees(float r) { + return r * (180.0f / PIf); +} +static inline float radians(float r) { + return r * (PIf / 180.f); +} + +// map x from the interval [0, 1] to the interval [a, b]. does NOT clamp. +static inline float lerpf(float x, float a, float b) { + return x * (b-a) + a; +} + +// fractional part of x +static inline float fractf(float x) { + return x - floorf(x); +} + +// opposite of lerp; map x from the interval [a, b] to the interval [0, 1]. does NOT clamp. +static inline float normf(float x, float a, float b) { + return (x-a) / (b-a); +} + +static inline float clampf(float x, float a, float b) { + if (x < a) return a; + if (x > b) return b; + return x; +} + +// solve the quadratic equation Ax² + Bx + C = 0, putting the solutions in *x1 and *x2 +// if there are 2 solutions, they will be assigned to *x1 and *x2, and true will be returned +// if there is 1 solution, it will be assigned to both *x1 and *x2, and true will be returned (you need to check *x1 == *x2 to detect this case) +// if there are no solutions, *x1 and *x2 will be left intact, and false will be returned +static bool quadratic_equation(float A, float B, float C, float *x1, float *x2) { + float det = B * B - 4 * A * C; + if (det < 0) return false; + float mul = 1.0f / (2*A); + float sqrt_det = sqrtf(det); + *x1 = (-B - sqrt_det) * mul; + *x2 = (-B + sqrt_det) * mul; + return true; +} + +static inline int clampi(int x, int a, int b) { + if (x < a) return a; + if (x > b) return b; + return x; +} + +static inline i16 clamp_i16(i16 x, i16 a, i16 b) { + if (x < a) return a; + if (x > b) return b; + return x; +} + +static inline u16 clamp_u16(u16 x, u16 a, u16 b) { + if (x < a) return a; + if (x > b) return b; + return x; +} + +static inline i32 clamp_i32(i32 x, i32 a, i32 b) { + if (x < a) return a; + if (x > b) return b; + return x; +} + +static inline u32 clamp_u32(u32 x, u32 a, u32 b) { + if (x < a) return a; + if (x > b) return b; + return x; +} + +static inline u8 ndigits_u64(u64 x) { + u8 ndigits = 1; + while (x > 9) { + x /= 10; + ++ndigits; + } + return ndigits; +} + +// remap x from the interval [from_a, from_b] to the interval [to_a, to_b], NOT clamping if x is outside the "from" interval. +static inline float remapf(float x, float from_a, float from_b, float to_a, float to_b) { + float pos = (x - from_a) / (from_b - from_a); + return lerpf(pos, to_a, to_b); +} + +static inline float minf(float a, float b) { + return a < b ? a : b; +} + +static inline float maxf(float a, float b) { + return a > b ? a : b; +} + +static inline double maxd(double a, double b) { + return a > b ? a : b; +} + +static inline double mind(double a, double b) { + return a < b ? a : b; +} + +static inline u8 min_u8(u8 a, u8 b) { + return a < b ? a : b; +} + +static inline u8 max_u8(u8 a, u8 b) { + return a > b ? a : b; +} + +static inline u16 min_u16(u16 a, u16 b) { + return a < b ? a : b; +} + +static inline u16 max_u16(u16 a, u16 b) { + return a > b ? a : b; +} + +static inline u32 min_u32(u32 a, u32 b) { + return a < b ? a : b; +} + +static inline u32 max_u32(u32 a, u32 b) { + return a > b ? a : b; +} + +// set *a to the minimum of *a and *b, and *b to the maximum +static inline void sort2_u32(u32 *a, u32 *b) { + u32 x = *a, y = *b; + if (x > y) { + *a = y; + *b = x; + } +} + +static inline i32 min_i32(i32 a, i32 b) { + return a < b ? a : b; +} + +static inline i32 max_i32(i32 a, i32 b) { + return a > b ? a : b; +} + +static inline u64 min_u64(u64 a, u64 b) { + return a < b ? a : b; +} + +static inline u64 max_u64(u64 a, u64 b) { + return a > b ? a : b; +} + +static inline i64 min_i64(i64 a, i64 b) { + return a < b ? a : b; +} + +static inline i64 max_i64(i64 a, i64 b) { + return a > b ? a : b; +} + +static inline i64 mod_i64(i64 a, i64 b) { + i64 ret = a % b; + if (ret < 0) ret += b; + return ret; +} + +static inline i64 abs_i64(i64 x) { + return x < 0 ? -x : +x; +} + +static inline i64 sgn_i64(i64 x) { + if (x < 0) return -1; + if (x > 0) return +1; + return 0; +} + +static inline float sgnf(float x) { + if (x < 0) return -1; + if (x > 0) return +1; + return 0; +} + +static inline float smoothstepf(float x) { + if (x <= 0) return 0; + if (x >= 1) return 1; + return x * x * (3 - 2 * x); +} + +static inline float randf(void) { + return (float)rand() / (float)((ulong)RAND_MAX + 1); +} + +static float rand_gauss(void) { + // https://en.wikipedia.org/wiki/Normal_distribution#Generating_values_from_normal_distribution + float U, V; + do { + U = randf(), V = randf(); + } while (U == 0 || V == 0); + return sqrtf(-2 * logf(U)) * cosf(TAUf * V); +} + +static u32 rand_u32(void) { + return ((u32)rand() & 0xfff) + | ((u32)rand() & 0xfff) << 12 + | ((u32)rand() & 0xff) << 24; +} + +static u64 rand_u64(void) { + return rand_u32() + | (u64)rand_u32() << 32; +} + +static float rand_uniform(float from, float to) { + return lerpf(randf(), from, to); +} + +#define RAND_SEED_MAX ((u64)0x7FFFFFFFFFFF) +static u64 rand_seed(u64 *seed) { + // some random numbers + *seed = (2766354195464186873 * (*seed) + 13309406687124978441u); + return (*seed>>16) & RAND_SEED_MAX; +} + +static float randf_seed(u64 *seed) { + u64 r = rand_seed(seed); + return (float)r / (float)(RAND_SEED_MAX + 1); +} + +// like randf_seed, but returns in range [-1, +1] +static float rand1_seed(u64 *seed) { + u64 r = rand_seed(seed); + float c = (float)RAND_SEED_MAX*.5f; + return ((float)r - c) / c; +} + +static float rand_uniform_seed(u64 *seed, float from, float to) { + return lerpf(randf_seed(seed), from, to); +} + +static float rand_gauss_seed(u64 *seed) { + float U, V; + do { + U = randf_seed(seed), V = randf_seed(seed); + } while (U == 0 || V == 0); + return sqrtf(-2 * logf(U)) * cosf(TAUf * V); +} + +static float sigmoidf(float x) { + return 1.0f / (1.0f + expf(-x)); +} + +// returns ⌈x/y⌉ (x/y rounded up) +static i32 ceildivi32(i32 x, i32 y) { + if (y < 0) { + // negating both operands doesn't change the answer + x = -x; + y = -y; + } + if (x < 0) { + // truncation is the same as ceiling for negative numbers + return x / y; + } else { + return (x + (y-1)) / y; + } +} + +typedef struct { + float x, y; +} v2; + +static v2 const v2_zero = {0, 0}; +static v2 V2(float x, float y) { + v2 v; + v.x = x; + v.y = y; + return v; +} + +static inline v2 v2_add(v2 a, v2 b) { + return V2(a.x + b.x, a.y + b.y); +} + +// a + b * s +static inline v2 v2_add_scaled(v2 a, v2 b, float s) { + return V2(a.x + b.x * s, a.y + b.y * s); +} + +static inline v2 v2_add_const(v2 a, float c) { + return V2(a.x + c, a.y + c); +} + +static inline v2 v2_sub(v2 a, v2 b) { + return V2(a.x - b.x, a.y - b.y); +} + +static inline v2 v2_scale(v2 v, float s) { + return V2(v.x * s, v.y * s); +} + +static inline v2 v2_mul(v2 a, v2 b) { + return V2(a.x * b.x, a.y * b.y); +} + +static inline v2 v2_clamp(v2 x, v2 a, v2 b) { + return V2(clampf(x.x, a.x, b.x), clampf(x.y, a.y, b.y)); +} + +static inline float v2_dot(v2 a, v2 b) { + return a.x * b.x + a.y * b.y; +} + +static inline float v2_len(v2 v) { + return sqrtf(v2_dot(v, v)); +} + +static inline v2 v2_lerp(float x, v2 a, v2 b) { + return V2(lerpf(x, a.x, b.x), lerpf(x, a.y, b.y)); +} + +// rotate v theta radians counterclockwise +static v2 v2_rotate(v2 v, float theta) { + float c = cosf(theta), s = sinf(theta); + return V2( + c * v.x - s * v.y, + s * v.x + c * v.y + ); +} + +static v2 v2_normalize(v2 v) { + float len = v2_len(v); + float mul = len == 0.0f ? 1.0f : 1.0f/len; + return v2_scale(v, mul); +} + +static float v2_dist(v2 a, v2 b) { + return v2_len(v2_sub(a, b)); +} + +static float v2_dist_squared(v2 a, v2 b) { + v2 diff = v2_sub(a, b); + return v2_dot(diff, diff); +} + +static void v2_print(v2 v) { + printf("(%f, %f)\n", v.x, v.y); +} + +static v2 v2_rand_unit(void) { + float theta = rand_uniform(0, TAUf); + return V2(cosf(theta), sinf(theta)); +} + +static v2 v2_polar(float r, float theta) { + return V2(r * cosf(theta), r * sinf(theta)); +} + +typedef struct { + float x, y, z; +} v3; + +static v3 const v3_zero = {0, 0, 0}; + +static v3 V3(float x, float y, float z) { + v3 v; + v.x = x; + v.y = y; + v.z = z; + return v; +} + +static inline v3 v3_from_v2(v2 v) { + return V3(v.x, v.y, 0); +} + +static inline v3 v3_add(v3 a, v3 b) { + return V3(a.x + b.x, a.y + b.y, a.z + b.z); +} + +static inline v3 v3_add_const(v3 a, float c) { + return V3(a.x + c, a.y + c, a.z + c); +} + +// a + b * s +static inline v3 v3_add_scaled(v3 a, v3 b, float s) { + return V3(a.x + b.x * s, a.y + b.y * s, a.z + b.z * s); +} + +// add to only the x component +static inline v3 v3_add_x(v3 a, float dx) { + return V3(a.x + dx, a.y, a.z); +} +static inline v3 v3_add_y(v3 a, float dy) { + return V3(a.x, a.y + dy, a.z); +} +static inline v3 v3_add_z(v3 a, float dz) { + return V3(a.x, a.y, a.z + dz); +} + +static inline v3 v3_sub(v3 a, v3 b) { + return V3(a.x - b.x, a.y - b.y, a.z - b.z); +} + +static inline v3 v3_scale(v3 v, float s) { + return V3(v.x * s, v.y * s, v.z * s); +} + + +static inline v3 v3_mul(v3 a, v3 b) { + return V3(a.x * b.x, a.y * b.y, a.z * b.z); +} + +static inline v3 v3_lerp(float x, v3 a, v3 b) { + return V3(lerpf(x, a.x, b.x), lerpf(x, a.y, b.y), lerpf(x, a.z, b.z)); +} + +static inline float v3_dot(v3 u, v3 v) { + return u.x*v.x + u.y*v.y + u.z*v.z; +} + +static inline v3 v3_cross(v3 u, v3 v) { + return V3(u.y*v.z - u.z*v.y, u.z*v.x - u.x*v.z, u.x*v.y - u.y*v.x); +} + +static inline float v3_len(v3 v) { + return sqrtf(v3_dot(v, v)); +} + +// normalize, then scale +static v3 v3_set_scale(v3 v, float s) { + float m = s / v3_len(v); + return v3_scale(v, m); +} + +static float v3_dist(v3 a, v3 b) { + return v3_len(v3_sub(a, b)); +} + +static inline float v3_dist_squared(v3 a, v3 b) { + v3 diff = v3_sub(a, b); + return v3_dot(diff, diff); +} + +static v3 v3_normalize(v3 v) { + float mul = 1.0f / sqrtf(v3_dot(v, v)); + return v3_scale(v, mul); +} + +static inline v2 v3_xy(v3 v) { + return V2(v.x, v.y); +} + +static inline void v3_uniform(GLint uniform, v3 v) { + glUniform3f(uniform, v.x, v.y, v.z); +} + +// a point on a unit sphere +static inline v3 v3_on_sphere(float yaw, float pitch) { + return V3(cosf(yaw) * cosf(pitch), sinf(pitch), sinf(yaw) * cosf(pitch)); +} + +static void v3_print(v3 v) { + printf("(%f, %f, %f)\n", v.x, v.y, v.z); +} + +static inline v3 v3_rand(void) { + return V3(randf(), randf(), randf()); +} + +static inline v3 v3_rand_seed(u64 *seed) { + float x = randf_seed(seed); + float y = randf_seed(seed); + float z = randf_seed(seed); + return V3(x, y, z); +} + +static inline v3 v3_rand1_seed(u64 *seed) { + float x = rand1_seed(seed); + float y = rand1_seed(seed); + float z = rand1_seed(seed); + return V3(x, y, z); +} + +static v3 v3_rand_unit_seed(u64 *seed) { + float alpha = acosf(randf_seed(seed) * 2.0f - 1.0f); + float beta = randf_seed(seed) * TAUf; + float ca = cosf(alpha), sa = sinf(alpha), cb = cosf(beta), sb = sinf(beta); + return V3(sa * cb, sa * sb, ca); +} + +static v3 v3_rand_unit(void) { + u64 rng = rand_u64(); + return v3_rand_unit_seed(&rng); +} + +static v3 v3_rand_gauss_seed(u64 *seed, float mean, float stddev) { + float x = rand_gauss_seed(seed) * stddev + mean; + float y = rand_gauss_seed(seed) * stddev + mean; + float z = rand_gauss_seed(seed) * stddev + mean; + return V3(x, y, z); +} + +static v3 v3_rand_gauss(float mean, float stddev) { + u64 seed = rand_u64(); + return v3_rand_gauss_seed(&seed, mean, stddev); +} + +// move two vectors towards each other +// x = 0 => don't move them. +// x = 1 => move them both to the center +static void v3_join(v3 *a, v3 *b, float x) { + v3 center = v3_lerp(0.5f, *a, *b); + *a = v3_lerp(x, *a, center); + *b = v3_lerp(x, *b, center); +} + +typedef struct { + float x, y, z, w; +} v4; + +static v4 const v4_zero = {0, 0, 0, 0}; + +static v4 V4(float x, float y, float z, float w) { + v4 v; + v.x = x; + v.y = y; + v.z = z; + v.w = w; + return v; +} + +static v4 v4_from_v3(v3 v, float w) { + return V4(v.x, v.y, v.z, w); +} + +static v4 v4_add(v4 a, v4 b) { + return V4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w); +} + +static v4 v4_sub(v4 a, v4 b) { + return V4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w); +} + +static v4 v4_scale(v4 v, float s) { + return V4(v.x * s, v.y * s, v.z * s, v.w * s); +} + +static v4 v4_scale_xyz(v4 v, float s) { + return V4(v.x * s, v.y * s, v.z * s, v.w); +} + +static v4 v4_lerp(float x, v4 a, v4 b) { + return V4(lerpf(x, a.x, b.x), lerpf(x, a.y, b.y), lerpf(x, a.z, b.z), lerpf(x, a.w, b.w)); +} + +static float v4_dot(v4 u, v4 v) { + return u.x*v.x + u.y*v.y + u.z*v.z + u.w*v.w; +} + +// create a new vector by multiplying the respective components of u and v +static v4 v4_mul(v4 u, v4 v) { + return V4(u.x * v.x, u.y * v.y, u.z * v.z, u.w * v.w); +} + +static float v4_len(v4 v) { + return sqrtf(v4_dot(v, v)); +} + +static v4 v4_normalize(v4 v) { + float len = v4_len(v); + float mul = len == 0.0f ? 1.0f : 1.0f/len; + return v4_scale(v, mul); +} + +static v3 v4_xyz(v4 v) { + return V3(v.x, v.y, v.z); +} + +static v4 v4_rand(void) { + return V4(randf(), randf(), randf(), randf()); +} + +static void v4_uniform(GLint uniform, v4 v) { + glUniform4f(uniform, v.x, v.y, v.z, v.w); +} + +static void v4_print(v4 v) { + printf("(%f, %f, %f, %f)\n", v.x, v.y, v.z, v.w); +} + +typedef struct { + double x, y; +} v2d; + +static v2d V2D(double x, double y) { + v2d v; + v.x = x; + v.y = y; + return v; +} + +// NOTE: matrices are column-major, because that's what they are in OpenGL + +typedef struct { + float e[4]; +} m2; + +static m2 const m2_identity = {{ + 1, 0, + 0, 1 +}}; + +static void m2_print(m2 m) { + int i; + for (i = 0; i < 2; ++i) + printf("[ %f %f ]\n", m.e[i], m.e[i+2]); + printf("\n"); +} + +static m2 M2(float a, float b, float c, float d) { + m2 ret; + float *x = ret.e; + x[0] = a; x[2] = b; + x[1] = c; x[3] = d; + return ret; +} + +static inline void m2_uniform(GLint u, m2 const *mat) { + glUniformMatrix2fv(u, 1, GL_FALSE, mat->e); +} + +typedef struct { + float e[9]; +} m3; + +static m3 m3_identity = {{ + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 +}}; + +static void m3_print(m3 m) { + int i; + for (i = 0; i < 3; ++i) { + printf("[ %f %f %f ]\n", m.e[i], m.e[i+3], m.e[i+6]); + } + printf("\n"); +} + +static m3 M3( + float a, float b, float c, + float d, float e, float f, + float g, float h, float i) { + m3 ret; + float *x = ret.e; + x[0] = a; x[3] = b; x[6] = c; + x[1] = d; x[4] = e; x[7] = f; + x[2] = g; x[5] = h; x[8] = i; + return ret; +} + +static m3 m3_translate(v2 t) { + return M3( + 1, 0, t.x, + 0, 1, t.y, + 0, 0, 1 + ); +} + +static m3 m3_rotate(float theta) { + float ct = cosf(theta), st = sinf(theta); + return M3( + ct, -st, 0, + st, ct, 0, + 0, 0, 1 + ); +} + +static inline void m3_uniform(GLint u, m3 const *mat) { + glUniformMatrix3fv(u, 1, GL_FALSE, mat->e); +} + +static m3 m3_mul(m3 a, m3 b) { + m3 prod = {0}; + int i, j; + float *x = prod.e; + for (i = 0; i < 3; ++i) { + for (j = 0; j < 3; ++j, ++x) { + float *as = &a.e[j]; + float *bs = &b.e[3*i]; + *x = as[0]*bs[0] + as[3]*bs[1] + as[6]*bs[2]; + } + } + return prod; +} + +typedef struct { + float e[16]; +} m4; + +static m4 const m4_identity = {{ + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 +}}; + +static void m4_print(m4 m) { + int i; + for (i = 0; i < 4; ++i) + printf("[ %f %f %f %f ]\n", m.e[i], m.e[i+4], m.e[i+8], m.e[i+12]); + printf("\n"); +} + +static m4 M4( + float a, float b, float c, float d, + float e, float f, float g, float h, + float i, float j, float k, float l, + float m, float n, float o, float p) { + m4 ret; + float *x = ret.e; + x[0] = a; x[4] = b; x[ 8] = c; x[12] = d; + x[1] = e; x[5] = f; x[ 9] = g; x[13] = h; + x[2] = i; x[6] = j; x[10] = k; x[14] = l; + x[3] = m; x[7] = n; x[11] = o; x[15] = p; + return ret; +} + +// see https://en.wikipedia.org/wiki/Rotation_matrix#General_rotations +static m4 m4_yaw(float yaw) { + float c = cosf(yaw), s = sinf(yaw); + return M4( + c, 0, -s, 0, + 0, 1, 0, 0, + s, 0, c, 0, + 0, 0, 0, 1 + ); +} + +static m4 m4_pitch(float pitch) { + float c = cosf(pitch), s = sinf(pitch); + return M4( + 1, 0, 0, 0, + 0, c, -s, 0, + 0, s, c, 0, + 0, 0, 0, 1 + ); +} + +// https://en.wikipedia.org/wiki/Translation_(geometry) +static m4 m4_translate(v3 t) { + return M4( + 1, 0, 0, t.x, + 0, 1, 0, t.y, + 0, 0, 1, t.z, + 0, 0, 0, 1 + ); +} + +// multiply m by [v.x, v.y, v.z, 1] +static v3 m4_mul_v3(m4 m, v3 v) { + return v3_add(v3_scale(V3(m.e[0], m.e[1], m.e[2]), v.x), v3_add(v3_scale(V3(m.e[4], m.e[5], m.e[6]), v.y), + v3_add(v3_scale(V3(m.e[8], m.e[9], m.e[10]), v.z), V3(m.e[12], m.e[13], m.e[14])))); +} + +/* +4x4 perspective matrix. +fov - field of view in radians, aspect - width:height aspect ratio, z_near/z_far - clipping planes +math stolen from gluPerspective (https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluPerspective.xml) +*/ +static m4 m4_perspective(float fov, float aspect, float z_near, float z_far) { + float f = 1.0f / tanf(fov / 2.0f); + return M4( + f/aspect, 0, 0, 0, + 0, f, 0, 0, + 0, 0, (z_far+z_near) / (z_near-z_far), (2.0f*z_far*z_near) / (z_near-z_far), + 0, 0, -1, 0 + ); +} + +// windows.h defines near and far, so let's not use those +static m4 m4_ortho(float left, float right, float bottom, float top, float near_, float far_) { + float tx = -(right + left)/(right - left); + float ty = -(top + bottom)/(top - bottom); + float tz = -(far_ + near_)/(far_ - near_); + return M4( + 2.0f / (right - left), 0, 0, tx, + 0, 2.0f / (top - bottom), 0, ty, + 0, 0, -2.0f / (far_ - near_), tz, + 0, 0, 0, 1 + ); +} + + +static m4 m4_mul(m4 a, m4 b) { + m4 prod = {0}; + int i, j; + float *x = prod.e; + for (i = 0; i < 4; ++i) { + for (j = 0; j < 4; ++j, ++x) { + float *as = &a.e[j]; + float *bs = &b.e[4*i]; + *x = as[0]*bs[0] + as[4]*bs[1] + as[8]*bs[2] + as[12]*bs[3]; + } + } + return prod; +} + +static m4 m4_inv(m4 mat) { + m4 ret; + float *inv = ret.e; + float *m = mat.e; + + inv[0] = m[5] * m[10] * m[15] - m[5] * m[11] * m[14] - m[9] * m[6] * m[15] + m[9] * m[7] * m[14] + m[13] * m[6] * m[11] - m[13] * m[7] * m[10]; + inv[4] = -m[4] * m[10] * m[15] + m[4] * m[11] * m[14] + m[8] * m[6] * m[15] - m[8] * m[7] * m[14] - m[12] * m[6] * m[11] + m[12] * m[7] * m[10]; + inv[8] = m[4] * m[9] * m[15] - m[4] * m[11] * m[13] - m[8] * m[5] * m[15] + m[8] * m[7] * m[13] + m[12] * m[5] * m[11] - m[12] * m[7] * m[9]; + inv[12] = -m[4] * m[9] * m[14] + m[4] * m[10] * m[13] + m[8] * m[5] * m[14] - m[8] * m[6] * m[13] - m[12] * m[5] * m[10] + m[12] * m[6] * m[9]; + inv[1] = -m[1] * m[10] * m[15] + m[1] * m[11] * m[14] + m[9] * m[2] * m[15] - m[9] * m[3] * m[14] - m[13] * m[2] * m[11] + m[13] * m[3] * m[10]; + inv[5] = m[0] * m[10] * m[15] - m[0] * m[11] * m[14] - m[8] * m[2] * m[15] + m[8] * m[3] * m[14] + m[12] * m[2] * m[11] - m[12] * m[3] * m[10]; + inv[9] = -m[0] * m[9] * m[15] + m[0] * m[11] * m[13] + m[8] * m[1] * m[15] - m[8] * m[3] * m[13] - m[12] * m[1] * m[11] + m[12] * m[3] * m[9]; + inv[13] = m[0] * m[9] * m[14] - m[0] * m[10] * m[13] - m[8] * m[1] * m[14] + m[8] * m[2] * m[13] + m[12] * m[1] * m[10] - m[12] * m[2] * m[9]; + inv[2] = m[1] * m[6] * m[15] - m[1] * m[7] * m[14] - m[5] * m[2] * m[15] + m[5] * m[3] * m[14] + m[13] * m[2] * m[7] - m[13] * m[3] * m[6]; + inv[6] = -m[0] * m[6] * m[15] + m[0] * m[7] * m[14] + m[4] * m[2] * m[15] - m[4] * m[3] * m[14] - m[12] * m[2] * m[7] + m[12] * m[3] * m[6]; + inv[10] = m[0] * m[5] * m[15] - m[0] * m[7] * m[13] - m[4] * m[1] * m[15] + m[4] * m[3] * m[13] + m[12] * m[1] * m[7] - m[12] * m[3] * m[5]; + inv[14] = -m[0] * m[5] * m[14] + m[0] * m[6] * m[13] + m[4] * m[1] * m[14] - m[4] * m[2] * m[13] - m[12] * m[1] * m[6] + m[12] * m[2] * m[5]; + inv[3] = -m[1] * m[6] * m[11] + m[1] * m[7] * m[10] + m[5] * m[2] * m[11] - m[5] * m[3] * m[10] - m[9] * m[2] * m[7] + m[9] * m[3] * m[6]; + inv[7] = m[0] * m[6] * m[11] - m[0] * m[7] * m[10] - m[4] * m[2] * m[11] + m[4] * m[3] * m[10] + m[8] * m[2] * m[7] - m[8] * m[3] * m[6]; + inv[11] = -m[0] * m[5] * m[11] + m[0] * m[7] * m[9] + m[4] * m[1] * m[11] - m[4] * m[3] * m[9] - m[8] * m[1] * m[7] + m[8] * m[3] * m[5]; + inv[15] = m[0] * m[5] * m[10] - m[0] * m[6] * m[9] - m[4] * m[1] * m[10] + m[4] * m[2] * m[9] + m[8] * m[1] * m[6] - m[8] * m[2] * m[5]; + + float det = m[0] * inv[0] + m[1] * inv[4] + m[2] * inv[8] + m[3] * inv[12]; + + if (det == 0) { + memset(&ret, 0, sizeof ret); + } else { + det = 1 / det; + + for (int i = 0; i < 16; i++) + inv[i] *= det; + } + + return ret; +} + +static inline void m4_uniform(GLint u, m4 const *mat) { + glUniformMatrix4fv(u, 1, GL_FALSE, mat->e); +} + +typedef struct { + int x, y; +} v2i; + +static v2i V2I(int x, int y) { + v2i v; + v.x = x; + v.y = y; + return v; +} + +static void rgba_u32_to_floats(u32 rgba, float floats[4]) { + floats[0] = (float)((rgba >> 24) & 0xFF) / 255.f; + floats[1] = (float)((rgba >> 16) & 0xFF) / 255.f; + floats[2] = (float)((rgba >> 8) & 0xFF) / 255.f; + floats[3] = (float)((rgba >> 0) & 0xFF) / 255.f; +} + +static u32 floats_to_rgba_u32(float const floats[4]) { + return (u32)(floats[0] * 255) << 24 + | (u32)(floats[1] * 255) << 16 + | (u32)(floats[2] * 255) << 8 + | (u32)(floats[3] * 255); +} + +static v4 rgba_u32_to_v4(u32 rgba) { + float c[4]; + rgba_u32_to_floats(rgba, c); + return V4(c[0], c[1], c[2], c[3]); +} + +static u32 v3_to_rgba_u32(v3 v) { + assert(v.x >= 0 && v.x <= 1 && v.y >= 0 && v.y <= 1 && v.z >= 0 && v.z <= 1); + u32 r = (u32)(v.x * 255); + u32 g = (u32)(v.y * 255); + u32 b = (u32)(v.z * 255); + return r << 24 | g << 16 | b << 8 | 0xFF; +} + +static u32 v4_to_rgba_u32(v4 v) { + assert(v.x >= 0 && v.x <= 1 && v.y >= 0 && v.y <= 1 && v.z >= 0 && v.z <= 1 && v.w >= 0 && v.w <= 1); + u32 r = (u32)(v.x * 255); + u32 g = (u32)(v.y * 255); + u32 b = (u32)(v.z * 255); + u32 a = (u32)(v.w * 255); + return r << 24 | g << 16 | b << 8 | a; +} + +// returns average of red green and blue components of color +static float rgba_brightness(u32 color) { + u8 r = (u8)(color >> 24), g = (u8)(color >> 16), b = (u8)(color >> 8); + return ((float)r+(float)g+(float)b) * (1.0f / 3); +} + +static bool rect_contains_point_v2(v2 pos, v2 size, v2 point) { + float x1 = pos.x, y1 = pos.y, x2 = pos.x + size.x, y2 = pos.y + size.y, + x = point.x, y = point.y; + return x >= x1 && x < x2 && y >= y1 && y < y2; +} + +static bool centered_rect_contains_point(v2 center, v2 size, v2 point) { + return rect_contains_point_v2(v2_sub(center, v2_scale(size, 0.5f)), size, point); +} + +typedef struct { + v2 pos, size; +} Rect; + +static Rect rect(v2 pos, v2 size) { + Rect r; + r.pos = pos; + r.size = size; + return r; +} + +static Rect rect4(float x1, float y1, float x2, float y2) { + assert(x2 >= x1); + assert(y2 >= y1); + return rect(V2(x1,y1), V2(x2-x1, y2-y1)); +} + +static Rect rect_centered(v2 center, v2 size) { + Rect r; + r.pos = v2_sub(center, v2_scale(size, 0.5f)); + r.size = size; + return r; +} + +static v2 rect_center(Rect r) { + return v2_add(r.pos, v2_scale(r.size, 0.5f)); +} + +static bool rect_contains_point(Rect r, v2 point) { + return rect_contains_point_v2(r.pos, r.size, point); +} + +static Rect rect_translate(Rect r, v2 by) { + return rect(v2_add(r.pos, by), r.size); +} + +static float rect_x1(Rect r) { return r.pos.x; } +static float rect_y1(Rect r) { return r.pos.y; } +static float rect_x2(Rect r) { return r.pos.x + r.size.x; } +static float rect_y2(Rect r) { return r.pos.y + r.size.y; } +static float rect_xmid(Rect r) { return r.pos.x + r.size.x * 0.5f; } +static float rect_ymid(Rect r) { return r.pos.y + r.size.y * 0.5f; } + +static void rect_coords(Rect r, float *x1, float *y1, float *x2, float *y2) { + *x1 = r.pos.x; + *y1 = r.pos.y; + *x2 = r.pos.x + r.size.x; + *y2 = r.pos.y + r.size.y; +} + +static void rect_print(Rect r) { + printf("Position: (%f, %f), Size: (%f, %f)\n", r.pos.x, r.pos.y, r.size.x, r.size.y); +} + + +static float rects_intersect(Rect r1, Rect r2) { + if (r1.pos.x >= r2.pos.x + r2.size.x) return false; // r1 is to the right of r2 + if (r2.pos.x >= r1.pos.x + r1.size.x) return false; // r2 is to the right of r1 + if (r1.pos.y >= r2.pos.y + r2.size.y) return false; // r1 is above r2 + if (r2.pos.y >= r1.pos.y + r1.size.y) return false; // r2 is above r1 + return true; +} + +// returns whether or not there is any of the clipped rectangle left +static bool rect_clip_to_rect(Rect *clipped, Rect clipper) { + v2 start_pos = clipped->pos; + clipped->pos.x = maxf(clipped->pos.x, clipper.pos.x); + clipped->pos.y = maxf(clipped->pos.y, clipper.pos.y); + clipped->size = v2_add(clipped->size, v2_sub(start_pos, clipped->pos)); + + clipped->size.x = clampf(clipped->size.x, 0, clipper.pos.x + clipper.size.x - clipped->pos.x); + clipped->size.y = clampf(clipped->size.y, 0, clipper.pos.y + clipper.size.y - clipped->pos.y); + return clipped->size.x > 0 && clipped->size.y > 0; +} + +// removes `amount` from all sides of r +static Rect rect_shrink(Rect r, float amount) { + r.pos.x += amount; + r.pos.y += amount; + r.size.x -= 2 * amount; + r.size.y -= 2 * amount; + r.size.x = maxf(r.size.x, 0); + r.size.y = maxf(r.size.y, 0); + return r; +} + +// adds `amount` to all sides of r +static Rect rect_grow(Rect r, float amount) { + r.pos.x -= amount; + r.pos.y -= amount; + r.size.x += 2 * amount; + r.size.y += 2 * amount; + return r; +} + +static v4 color_rgba_to_hsva(v4 rgba) { + float R = rgba.x, G = rgba.y, B = rgba.z, A = rgba.w; + float M = maxf(R, maxf(G, B)); + float m = minf(R, minf(G, B)); + float C = M - m; + float H = 0; + if (C == 0) + H = 0; + if (M == R) + H = fmodf((G - B) / C, 6); + else if (M == G) + H = (B - R) / C + 2; + else if (M == B) + H = (R - G) / C + 4; + H *= 60; + float V = M; + float S = V == 0 ? 0 : C / V; + return V4(H, S, V, A); +} + +static v4 color_hsva_to_rgba(v4 hsva) { + float H = hsva.x, S = hsva.y, V = hsva.z, A = hsva.w; + H /= 60; + float C = S * V; + float X = C * (1 - fabsf(fmodf(H, 2) - 1)); + float R, G, B; + if (H <= 1) + R=C, G=X, B=0; + else if (H <= 2) + R=X, G=C, B=0; + else if (H <= 3) + R=0, G=C, B=X; + else if (H <= 4) + R=0, G=X, B=C; + else if (H <= 5) + R=X, G=0, B=C; + else + R=C, G=0, B=X; + + float m = V-C; + R += m; + G += m; + B += m; + return V4(R, G, B, A); +} + +static u32 color_interpolate(float x, u32 color1, u32 color2) { + x = x * x * (3 - 2*x); // hermite interpolation + + v4 c1 = rgba_u32_to_v4(color1), c2 = rgba_u32_to_v4(color2); + // to make it interpolate more nicely, convert to hsv, interpolate in that space, then convert back + c1 = color_rgba_to_hsva(c1); + c2 = color_rgba_to_hsva(c2); + float h1 = c1.x, s1 = c1.y, v_1 = c1.z, a1 = c1.w; + float h2 = c2.x, s2 = c2.y, v_2 = c2.z, a2 = c2.w; // avoid shadowing with v2 + + float s_out = lerpf(x, s1, s2); + float v_out = lerpf(x, v_1, v_2); + float a_out = lerpf(x, a1, a2); + + float h_out; + // because hue is on a circle, we need to make sure we take the shorter route around the circle + if (fabsf(h1 - h2) < 180) { + h_out = lerpf(x, h1, h2); + } else if (h1 > h2) { + h_out = lerpf(x, h1, h2 + 360); + } else { + h_out = lerpf(x, h1 + 360, h2); + } + h_out = fmodf(h_out, 360); + + v4 c_out = V4(h_out, s_out, v_out, a_out); + c_out = color_hsva_to_rgba(c_out); + return v4_to_rgba_u32(c_out); +} + +// generate a random color with normally distributed red, green, and blue values +// the alpha value is taken directly from the mean +static u32 color_rand_gauss_seed(u64 *seed, u32 mean, float variation) { + float channels[4]; + rgba_u32_to_floats(mean, channels); + channels[0] += rand_gauss_seed(seed) * variation; + channels[1] += rand_gauss_seed(seed) * variation; + channels[2] += rand_gauss_seed(seed) * variation; + channels[0] = clampf(channels[0], 0, 1); + channels[1] = clampf(channels[1], 0, 1); + channels[2] = clampf(channels[2], 0, 1); + return floats_to_rgba_u32(channels); +} + +static float barycentric_interpolation_2d(v2 p, v2 a, float a_v, v2 b, float b_v, v2 c, float c_v) { + float w_a = ((b.y - c.y) * (p.x - c.x) + (c.x - b.x) * (p.y - c.y)) + / ((b.y - c.y) * (a.x - c.x) + (c.x - b.x) * (a.y - c.y)); + float w_b = ((c.y - a.y) * (p.x - c.x) + (a.x - c.x) * (p.y - c.y)) + / ((b.y - c.y) * (a.x - c.x) + (c.x - b.x) * (a.y - c.y)); + float w_c = 1 - w_a - w_b; + assert(w_a >= 0 && w_a <= 1); + assert(w_b >= 0 && w_b <= 1); + assert(w_c >= 0 && w_c <= 1); + return a_v * w_a + b_v * w_b + c_v * w_c; +} diff --git a/stb_image.h b/stb_image.h new file mode 100644 index 0000000..adecaac --- /dev/null +++ b/stb_image.h @@ -0,0 +1,7762 @@ +/* stb_image - v2.26 - public domain image loader - http://nothings.org/stb + no warranty implied; use at your own risk + + Do this: + #define STB_IMAGE_IMPLEMENTATION + before you include this file in *one* C or C++ file to create the implementation. + + // i.e. it should look like this: + #include ... + #include ... + #include ... + #define STB_IMAGE_IMPLEMENTATION + #include "stb_image.h" + + You can #define STBI_ASSERT(x) before the #include to avoid using assert.h. + And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free + + + QUICK NOTES: + Primarily of interest to game developers and other people who can + avoid problematic images and only need the trivial interface + + JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) + PNG 1/2/4/8/16-bit-per-channel + + TGA (not sure what subset, if a subset) + BMP non-1bpp, non-RLE + PSD (composited view only, no extra channels, 8/16 bit-per-channel) + + GIF (*comp always reports as 4-channel) + HDR (radiance rgbE format) + PIC (Softimage PIC) + PNM (PPM and PGM binary only) + + Animated GIF still needs a proper API, but here's one way to do it: + http://gist.github.com/urraka/685d9a6340b26b830d49 + + - decode from memory or through FILE (define STBI_NO_STDIO to remove code) + - decode from arbitrary I/O callbacks + - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON) + + Full documentation under "DOCUMENTATION" below. + + +LICENSE + + See end of file for license information. + +RECENT REVISION HISTORY: + + 2.26 (2020-07-13) many minor fixes + 2.25 (2020-02-02) fix warnings + 2.24 (2020-02-02) fix warnings; thread-local failure_reason and flip_vertically + 2.23 (2019-08-11) fix clang static analysis warning + 2.22 (2019-03-04) gif fixes, fix warnings + 2.21 (2019-02-25) fix typo in comment + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings + 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes + 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 + RGB-format JPEG; remove white matting in PSD; + allocate large structures on the stack; + correct channel count for PNG & BMP + 2.10 (2016-01-22) avoid warning introduced in 2.09 + 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED + + See end of file for full revision history. + + + ============================ Contributors ========================= + + Image formats Extensions, features + Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info) + Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info) + Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG) + Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks) + Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG) + Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip) + Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) + github:urraka (animated gif) Junggon Kim (PNM comments) + Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) + socks-the-fox (16-bit PNG) + Jeremy Sawicki (handle all ImageNet JPGs) + Optimizations & bugfixes Mikhail Morozov (1-bit BMP) + Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) + Arseny Kapoulkine + John-Mark Allen + Carmelo J Fdez-Aguera + + Bug & warning fixes + Marc LeBlanc David Woo Guillaume George Martins Mozeiko + Christpher Lloyd Jerry Jansson Joseph Thomson Blazej Dariusz Roszkowski + Phil Jordan Dave Moore Roy Eltham + Hayaki Saito Nathan Reed Won Chun + Luke Graham Johan Duparc Nick Verigakis the Horde3D community + Thomas Ruf Ronny Chevalier github:rlyeh + Janez Zemva John Bartholomew Michal Cichon github:romigrou + Jonathan Blow Ken Hamada Tero Hanninen github:svdijk + Laurent Gomila Cort Stratton github:snagar + Aruelien Pocheville Sergio Gonzalez Thibault Reuille github:Zelex + Cass Everitt Ryamond Barbiero github:grim210 + Paul Du Bois Engin Manap Aldo Culquicondor github:sammyhw + Philipp Wiesemann Dale Weiler Oriol Ferrer Mesia github:phprus + Josh Tobin Matthew Gregan github:poppolopoppo + Julian Raschke Gregory Mullen Christian Floisand github:darealshinji + Baldur Karlsson Kevin Schmidt JR Smith github:Michaelangel007 + Brad Weinberger Matvey Cherevko [reserved] + Luca Sas Alexander Veselov Zack Middleton [reserved] + Ryan C. Gordon [reserved] [reserved] + DO NOT ADD YOUR NAME HERE + + To add your name to the credits, pick a random blank space in the middle and fill it. + 80% of merge conflicts on stb PRs are due to people adding their name at the end + of the credits. +*/ + +#ifndef STBI_INCLUDE_STB_IMAGE_H +#define STBI_INCLUDE_STB_IMAGE_H + +// DOCUMENTATION +// +// Limitations: +// - no 12-bit-per-channel JPEG +// - no JPEGs with arithmetic coding +// - GIF always returns *comp=4 +// +// Basic usage (see HDR discussion below for HDR usage): +// int x,y,n; +// unsigned char *data = stbi_load(filename, &x, &y, &n, 0); +// // ... process data if not NULL ... +// // ... x = width, y = height, n = # 8-bit components per pixel ... +// // ... replace '0' with '1'..'4' to force that many components per pixel +// // ... but 'n' will always be the number that it would have been if you said 0 +// stbi_image_free(data) +// +// Standard parameters: +// int *x -- outputs image width in pixels +// int *y -- outputs image height in pixels +// int *channels_in_file -- outputs # of image components in image file +// int desired_channels -- if non-zero, # of image components requested in result +// +// The return value from an image loader is an 'unsigned char *' which points +// to the pixel data, or NULL on an allocation failure or if the image is +// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels, +// with each pixel consisting of N interleaved 8-bit components; the first +// pixel pointed to is top-left-most in the image. There is no padding between +// image scanlines or between pixels, regardless of format. The number of +// components N is 'desired_channels' if desired_channels is non-zero, or +// *channels_in_file otherwise. If desired_channels is non-zero, +// *channels_in_file has the number of components that _would_ have been +// output otherwise. E.g. if you set desired_channels to 4, you will always +// get RGBA output, but you can check *channels_in_file to see if it's trivially +// opaque because e.g. there were only 3 channels in the source image. +// +// An output image with N components has the following components interleaved +// in this order in each pixel: +// +// N=#comp components +// 1 grey +// 2 grey, alpha +// 3 red, green, blue +// 4 red, green, blue, alpha +// +// If image loading fails for any reason, the return value will be NULL, +// and *x, *y, *channels_in_file will be unchanged. The function +// stbi_failure_reason() can be queried for an extremely brief, end-user +// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS +// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly +// more user-friendly ones. +// +// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized. +// +// =========================================================================== +// +// UNICODE: +// +// If compiling for Windows and you wish to use Unicode filenames, compile +// with +// #define STBI_WINDOWS_UTF8 +// and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert +// Windows wchar_t filenames to utf8. +// +// =========================================================================== +// +// Philosophy +// +// stb libraries are designed with the following priorities: +// +// 1. easy to use +// 2. easy to maintain +// 3. good performance +// +// Sometimes I let "good performance" creep up in priority over "easy to maintain", +// and for best performance I may provide less-easy-to-use APIs that give higher +// performance, in addition to the easy-to-use ones. Nevertheless, it's important +// to keep in mind that from the standpoint of you, a client of this library, +// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all. +// +// Some secondary priorities arise directly from the first two, some of which +// provide more explicit reasons why performance can't be emphasized. +// +// - Portable ("ease of use") +// - Small source code footprint ("easy to maintain") +// - No dependencies ("ease of use") +// +// =========================================================================== +// +// I/O callbacks +// +// I/O callbacks allow you to read from arbitrary sources, like packaged +// files or some other source. Data read from callbacks are processed +// through a small internal buffer (currently 128 bytes) to try to reduce +// overhead. +// +// The three functions you must define are "read" (reads some bytes of data), +// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end). +// +// =========================================================================== +// +// SIMD support +// +// The JPEG decoder will try to automatically use SIMD kernels on x86 when +// supported by the compiler. For ARM Neon support, you must explicitly +// request it. +// +// (The old do-it-yourself SIMD API is no longer supported in the current +// code.) +// +// On x86, SSE2 will automatically be used when available based on a run-time +// test; if not, the generic C versions are used as a fall-back. On ARM targets, +// the typical path is to have separate builds for NEON and non-NEON devices +// (at least this is true for iOS and Android). Therefore, the NEON support is +// toggled by a build flag: define STBI_NEON to get NEON loops. +// +// If for some reason you do not want to use any of SIMD code, or if +// you have issues compiling it, you can disable it entirely by +// defining STBI_NO_SIMD. +// +// =========================================================================== +// +// HDR image support (disable by defining STBI_NO_HDR) +// +// stb_image supports loading HDR images in general, and currently the Radiance +// .HDR file format specifically. You can still load any file through the existing +// interface; if you attempt to load an HDR file, it will be automatically remapped +// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1; +// both of these constants can be reconfigured through this interface: +// +// stbi_hdr_to_ldr_gamma(2.2f); +// stbi_hdr_to_ldr_scale(1.0f); +// +// (note, do not use _inverse_ constants; stbi_image will invert them +// appropriately). +// +// Additionally, there is a new, parallel interface for loading files as +// (linear) floats to preserve the full dynamic range: +// +// float *data = stbi_loadf(filename, &x, &y, &n, 0); +// +// If you load LDR images through this interface, those images will +// be promoted to floating point values, run through the inverse of +// constants corresponding to the above: +// +// stbi_ldr_to_hdr_scale(1.0f); +// stbi_ldr_to_hdr_gamma(2.2f); +// +// Finally, given a filename (or an open file or memory block--see header +// file for details) containing image data, you can query for the "most +// appropriate" interface to use (that is, whether the image is HDR or +// not), using: +// +// stbi_is_hdr(char *filename); +// +// =========================================================================== +// +// iPhone PNG support: +// +// By default we convert iphone-formatted PNGs back to RGB, even though +// they are internally encoded differently. You can disable this conversion +// by calling stbi_convert_iphone_png_to_rgb(0), in which case +// you will always just get the native iphone "format" through (which +// is BGR stored in RGB). +// +// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per +// pixel to remove any premultiplied alpha *only* if the image file explicitly +// says there's premultiplied data (currently only happens in iPhone images, +// and only if iPhone convert-to-rgb processing is on). +// +// =========================================================================== +// +// ADDITIONAL CONFIGURATION +// +// - You can suppress implementation of any of the decoders to reduce +// your code footprint by #defining one or more of the following +// symbols before creating the implementation. +// +// STBI_NO_JPEG +// STBI_NO_PNG +// STBI_NO_BMP +// STBI_NO_PSD +// STBI_NO_TGA +// STBI_NO_GIF +// STBI_NO_HDR +// STBI_NO_PIC +// STBI_NO_PNM (.ppm and .pgm) +// +// - You can request *only* certain decoders and suppress all other ones +// (this will be more forward-compatible, as addition of new decoders +// doesn't require you to disable them explicitly): +// +// STBI_ONLY_JPEG +// STBI_ONLY_PNG +// STBI_ONLY_BMP +// STBI_ONLY_PSD +// STBI_ONLY_TGA +// STBI_ONLY_GIF +// STBI_ONLY_HDR +// STBI_ONLY_PIC +// STBI_ONLY_PNM (.ppm and .pgm) +// +// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still +// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB +// +// - If you define STBI_MAX_DIMENSIONS, stb_image will reject images greater +// than that size (in either width or height) without further processing. +// This is to let programs in the wild set an upper bound to prevent +// denial-of-service attacks on untrusted data, as one could generate a +// valid image of gigantic dimensions and force stb_image to allocate a +// huge block of memory and spend disproportionate time decoding it. By +// default this is set to (1 << 24), which is 16777216, but that's still +// very big. + +#ifndef STBI_NO_STDIO +#include <stdio.h> +#endif // STBI_NO_STDIO + +#define STBI_VERSION 1 + +enum +{ + STBI_default = 0, // only used for desired_channels + + STBI_grey = 1, + STBI_grey_alpha = 2, + STBI_rgb = 3, + STBI_rgb_alpha = 4 +}; + +#include <stdlib.h> +typedef unsigned char stbi_uc; +typedef unsigned short stbi_us; + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef STBIDEF +#ifdef STB_IMAGE_STATIC +#define STBIDEF static +#else +#define STBIDEF extern +#endif +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// PRIMARY API - works on images of any type +// + +// +// load image by filename, open file, or memory buffer +// + +typedef struct +{ + int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read + void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative + int (*eof) (void *user); // returns nonzero if we are at end of file/data +} stbi_io_callbacks; + +//////////////////////////////////// +// +// 8-bits-per-channel interface +// + +STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +// for stbi_load_from_file, file pointer is left pointing immediately after image +#endif + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +#endif + +#ifdef STBI_WINDOWS_UTF8 +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); +#endif + +//////////////////////////////////// +// +// 16-bits-per-channel interface +// + +STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +#endif + +//////////////////////////////////// +// +// float-per-channel interface +// +#ifndef STBI_NO_LINEAR + STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + + #ifndef STBI_NO_STDIO + STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); + #endif +#endif + +#ifndef STBI_NO_HDR + STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); + STBIDEF void stbi_hdr_to_ldr_scale(float scale); +#endif // STBI_NO_HDR + +#ifndef STBI_NO_LINEAR + STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); + STBIDEF void stbi_ldr_to_hdr_scale(float scale); +#endif // STBI_NO_LINEAR + +// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename); +STBIDEF int stbi_is_hdr_from_file(FILE *f); +#endif // STBI_NO_STDIO + + +// get a VERY brief reason for failure +// on most compilers (and ALL modern mainstream compilers) this is threadsafe +STBIDEF const char *stbi_failure_reason (void); + +// free the loaded image -- this is just free() +STBIDEF void stbi_image_free (void *retval_from_stbi_load); + +// get image dimensions & components without fully decoding +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit (char const *filename); +STBIDEF int stbi_is_16_bit_from_file(FILE *f); +#endif + + + +// for image formats that explicitly notate that they have premultiplied alpha, +// we just return the colors as stored in the file. set this flag to force +// unpremultiplication. results are undefined if the unpremultiply overflow. +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply); + +// indicate whether we should process iphone images back to canonical format, +// or just pass them through "as-is" +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert); + +// flip the image vertically, so the first pixel in the output array is the bottom left +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip); + +// as above, but only applies to images loaded on the thread that calls the function +// this function is only available if your compiler supports thread-local variables; +// calling it will fail to link if your compiler doesn't +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip); + +// ZLIB client - used by PNG, available for other purposes + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); +STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + +STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + + +#ifdef __cplusplus +} +#endif + +// +// +//// end header file ///////////////////////////////////////////////////// +#endif // STBI_INCLUDE_STB_IMAGE_H + +#ifdef STB_IMAGE_IMPLEMENTATION + +#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ + || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ + || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ + || defined(STBI_ONLY_ZLIB) + #ifndef STBI_ONLY_JPEG + #define STBI_NO_JPEG + #endif + #ifndef STBI_ONLY_PNG + #define STBI_NO_PNG + #endif + #ifndef STBI_ONLY_BMP + #define STBI_NO_BMP + #endif + #ifndef STBI_ONLY_PSD + #define STBI_NO_PSD + #endif + #ifndef STBI_ONLY_TGA + #define STBI_NO_TGA + #endif + #ifndef STBI_ONLY_GIF + #define STBI_NO_GIF + #endif + #ifndef STBI_ONLY_HDR + #define STBI_NO_HDR + #endif + #ifndef STBI_ONLY_PIC + #define STBI_NO_PIC + #endif + #ifndef STBI_ONLY_PNM + #define STBI_NO_PNM + #endif +#endif + +#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) +#define STBI_NO_ZLIB +#endif + + +#include <stdarg.h> +#include <stddef.h> // ptrdiff_t on osx +#include <stdlib.h> +#include <string.h> +#include <limits.h> + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +#include <math.h> // ldexp, pow +#endif + +#ifndef STBI_NO_STDIO +#include <stdio.h> +#endif + +#ifndef STBI_ASSERT +#include <assert.h> +#define STBI_ASSERT(x) assert(x) +#endif + +#ifdef __cplusplus +#define STBI_EXTERN extern "C" +#else +#define STBI_EXTERN extern +#endif + + +#ifndef _MSC_VER + #ifdef __cplusplus + #define stbi_inline inline + #else + #define stbi_inline + #endif +#else + #define stbi_inline __forceinline +#endif + +#ifndef STBI_NO_THREAD_LOCALS + #if defined(__cplusplus) && __cplusplus >= 201103L + #define STBI_THREAD_LOCAL thread_local + #elif defined(__GNUC__) && __GNUC__ < 5 + #define STBI_THREAD_LOCAL __thread + #elif defined(_MSC_VER) + #define STBI_THREAD_LOCAL __declspec(thread) + #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__) + #define STBI_THREAD_LOCAL _Thread_local + #endif + + #ifndef STBI_THREAD_LOCAL + #if defined(__GNUC__) + #define STBI_THREAD_LOCAL __thread + #endif + #endif +#endif + +#ifdef _MSC_VER +typedef unsigned short stbi__uint16; +typedef signed short stbi__int16; +typedef unsigned int stbi__uint32; +typedef signed int stbi__int32; +#else +#include <stdint.h> +typedef uint16_t stbi__uint16; +typedef int16_t stbi__int16; +typedef uint32_t stbi__uint32; +typedef int32_t stbi__int32; +#endif + +// should produce compiler error if size is wrong +typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; + +#ifdef _MSC_VER +#define STBI_NOTUSED(v) (void)(v) +#else +#define STBI_NOTUSED(v) (void)sizeof(v) +#endif + +#ifdef _MSC_VER +#define STBI_HAS_LROTL +#endif + +#ifdef STBI_HAS_LROTL + #define stbi_lrot(x,y) _lrotl(x,y) +#else + #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (32 - (y)))) +#endif + +#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) +// ok +#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED) +// ok +#else +#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)." +#endif + +#ifndef STBI_MALLOC +#define STBI_MALLOC(sz) malloc(sz) +#define STBI_REALLOC(p,newsz) realloc(p,newsz) +#define STBI_FREE(p) free(p) +#endif + +#ifndef STBI_REALLOC_SIZED +#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) +#endif + +// x86/x64 detection +#if defined(__x86_64__) || defined(_M_X64) +#define STBI__X64_TARGET +#elif defined(__i386) || defined(_M_IX86) +#define STBI__X86_TARGET +#endif + +#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD) +// gcc doesn't support sse2 intrinsics unless you compile with -msse2, +// which in turn means it gets to use SSE2 everywhere. This is unfortunate, +// but previous attempts to provide the SSE2 functions with runtime +// detection caused numerous issues. The way architecture extensions are +// exposed in GCC/Clang is, sadly, not really suited for one-file libs. +// New behavior: if compiled with -msse2, we use SSE2 without any +// detection; if not, we don't use it at all. +#define STBI_NO_SIMD +#endif + +#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD) +// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET +// +// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the +// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant. +// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not +// simultaneously enabling "-mstackrealign". +// +// See https://github.com/nothings/stb/issues/81 for more information. +// +// So default to no SSE2 on 32-bit MinGW. If you've read this far and added +// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2. +#define STBI_NO_SIMD +#endif + +#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) +#define STBI_SSE2 +#include <emmintrin.h> + +#ifdef _MSC_VER + +#if _MSC_VER >= 1400 // not VC6 +#include <intrin.h> // __cpuid +static int stbi__cpuid3(void) +{ + int info[4]; + __cpuid(info,1); + return info[3]; +} +#else +static int stbi__cpuid3(void) +{ + int res; + __asm { + mov eax,1 + cpuid + mov res,edx + } + return res; +} +#endif + +#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + int info3 = stbi__cpuid3(); + return ((info3 >> 26) & 1) != 0; +} +#endif + +#else // assume GCC-style if not VC++ +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + // If we're even attempting to compile this on GCC/Clang, that means + // -msse2 is on, which means the compiler is allowed to use SSE2 + // instructions at will, and so are we. + return 1; +} +#endif + +#endif +#endif + +// ARM NEON +#if defined(STBI_NO_SIMD) && defined(STBI_NEON) +#undef STBI_NEON +#endif + +#ifdef STBI_NEON +#include <arm_neon.h> +// assume GCC or Clang on ARM targets +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) +#endif + +#ifndef STBI_SIMD_ALIGN +#define STBI_SIMD_ALIGN(type, name) type name +#endif + +#ifndef STBI_MAX_DIMENSIONS +#define STBI_MAX_DIMENSIONS (1 << 24) +#endif + +/////////////////////////////////////////////// +// +// stbi__context struct and start_xxx functions + +// stbi__context structure is our basic context used by all images, so it +// contains all the IO context, plus some basic image information +typedef struct +{ + stbi__uint32 img_x, img_y; + int img_n, img_out_n; + + stbi_io_callbacks io; + void *io_user_data; + + int read_from_callbacks; + int buflen; + stbi_uc buffer_start[128]; + int callback_already_read; + + stbi_uc *img_buffer, *img_buffer_end; + stbi_uc *img_buffer_original, *img_buffer_original_end; +} stbi__context; + + +static void stbi__refill_buffer(stbi__context *s); + +// initialize a memory-decode context +static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) +{ + s->io.read = NULL; + s->read_from_callbacks = 0; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; + s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; +} + +// initialize a callback-based context +static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) +{ + s->io = *c; + s->io_user_data = user; + s->buflen = sizeof(s->buffer_start); + s->read_from_callbacks = 1; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = s->buffer_start; + stbi__refill_buffer(s); + s->img_buffer_original_end = s->img_buffer_end; +} + +#ifndef STBI_NO_STDIO + +static int stbi__stdio_read(void *user, char *data, int size) +{ + return (int) fread(data,1,size,(FILE*) user); +} + +static void stbi__stdio_skip(void *user, int n) +{ + int ch; + fseek((FILE*) user, n, SEEK_CUR); + ch = fgetc((FILE*) user); /* have to read a byte to reset feof()'s flag */ + if (ch != EOF) { + ungetc(ch, (FILE *) user); /* push byte back onto stream if valid. */ + } +} + +static int stbi__stdio_eof(void *user) +{ + return feof((FILE*) user) || ferror((FILE *) user); +} + +static stbi_io_callbacks stbi__stdio_callbacks = +{ + stbi__stdio_read, + stbi__stdio_skip, + stbi__stdio_eof, +}; + +static void stbi__start_file(stbi__context *s, FILE *f) +{ + stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); +} + +//static void stop_file(stbi__context *s) { } + +#endif // !STBI_NO_STDIO + +static void stbi__rewind(stbi__context *s) +{ + // conceptually rewind SHOULD rewind to the beginning of the stream, + // but we just rewind to the beginning of the initial buffer, because + // we only use it after doing 'test', which only ever looks at at most 92 bytes + s->img_buffer = s->img_buffer_original; + s->img_buffer_end = s->img_buffer_original_end; +} + +enum +{ + STBI_ORDER_RGB, + STBI_ORDER_BGR +}; + +typedef struct +{ + int bits_per_channel; + int num_channels; + int channel_order; +} stbi__result_info; + +#ifndef STBI_NO_JPEG +static int stbi__jpeg_test(stbi__context *s); +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNG +static int stbi__png_test(stbi__context *s); +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__png_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_BMP +static int stbi__bmp_test(stbi__context *s); +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_TGA +static int stbi__tga_test(stbi__context *s); +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s); +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__psd_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_HDR +static int stbi__hdr_test(stbi__context *s); +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_test(stbi__context *s); +static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_GIF +static int stbi__gif_test(stbi__context *s); +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNM +static int stbi__pnm_test(stbi__context *s); +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +static +#ifdef STBI_THREAD_LOCAL +STBI_THREAD_LOCAL +#endif +const char *stbi__g_failure_reason; + +STBIDEF const char *stbi_failure_reason(void) +{ + return stbi__g_failure_reason; +} + +#ifndef STBI_NO_FAILURE_STRINGS +static int stbi__err(const char *str) +{ + stbi__g_failure_reason = str; + return 0; +} +#endif + +static void *stbi__malloc(size_t size) +{ + return STBI_MALLOC(size); +} + +// stb_image uses ints pervasively, including for offset calculations. +// therefore the largest decoded image size we can support with the +// current code, even on 64-bit targets, is INT_MAX. this is not a +// significant limitation for the intended use case. +// +// we do, however, need to make sure our size calculations don't +// overflow. hence a few helper functions for size calculations that +// multiply integers together, making sure that they're non-negative +// and no overflow occurs. + +// return 1 if the sum is valid, 0 on overflow. +// negative terms are considered invalid. +static int stbi__addsizes_valid(int a, int b) +{ + if (b < 0) return 0; + // now 0 <= b <= INT_MAX, hence also + // 0 <= INT_MAX - b <= INTMAX. + // And "a + b <= INT_MAX" (which might overflow) is the + // same as a <= INT_MAX - b (no overflow) + return a <= INT_MAX - b; +} + +// returns 1 if the product is valid, 0 on overflow. +// negative factors are considered invalid. +static int stbi__mul2sizes_valid(int a, int b) +{ + if (a < 0 || b < 0) return 0; + if (b == 0) return 1; // mul-by-0 is always safe + // portable way to check for no overflows in a*b + return a <= INT_MAX/b; +} + +#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) +// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow +static int stbi__mad2sizes_valid(int a, int b, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); +} +#endif + +// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow +static int stbi__mad3sizes_valid(int a, int b, int c, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__addsizes_valid(a*b*c, add); +} + +// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); +} +#endif + +#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) +// mallocs with size overflow checking +static void *stbi__malloc_mad2(int a, int b, int add) +{ + if (!stbi__mad2sizes_valid(a, b, add)) return NULL; + return stbi__malloc(a*b + add); +} +#endif + +static void *stbi__malloc_mad3(int a, int b, int c, int add) +{ + if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; + return stbi__malloc(a*b*c + add); +} + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) +{ + if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; + return stbi__malloc(a*b*c*d + add); +} +#endif + +// stbi__err - error +// stbi__errpf - error returning pointer to float +// stbi__errpuc - error returning pointer to unsigned char + +#ifdef STBI_NO_FAILURE_STRINGS + #define stbi__err(x,y) 0 +#elif defined(STBI_FAILURE_USERMSG) + #define stbi__err(x,y) stbi__err(y) +#else + #define stbi__err(x,y) stbi__err(x) +#endif + +#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) +#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) + +STBIDEF void stbi_image_free(void *retval_from_stbi_load) +{ + STBI_FREE(retval_from_stbi_load); +} + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); +#endif + +#ifndef STBI_NO_HDR +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); +#endif + +static int stbi__vertically_flip_on_load_global = 0; + +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_global = flag_true_if_should_flip; +} + +#ifndef STBI_THREAD_LOCAL +#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global +#else +static STBI_THREAD_LOCAL int stbi__vertically_flip_on_load_local, stbi__vertically_flip_on_load_set; + +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_local = flag_true_if_should_flip; + stbi__vertically_flip_on_load_set = 1; +} + +#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \ + ? stbi__vertically_flip_on_load_local \ + : stbi__vertically_flip_on_load_global) +#endif // STBI_THREAD_LOCAL + +static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields + ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed + ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order + ri->num_channels = 0; + + #ifndef STBI_NO_JPEG + if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNG + if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_BMP + if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_GIF + if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PSD + if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); + #else + STBI_NOTUSED(bpc); + #endif + #ifndef STBI_NO_PIC + if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNM + if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); + return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); + } + #endif + + #ifndef STBI_NO_TGA + // test tga last because it's a crappy test! + if (stbi__tga_test(s)) + return stbi__tga_load(s,x,y,comp,req_comp, ri); + #endif + + return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); +} + +static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi_uc *reduced; + + reduced = (stbi_uc *) stbi__malloc(img_len); + if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling + + STBI_FREE(orig); + return reduced; +} + +static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi__uint16 *enlarged; + + enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); + if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff + + STBI_FREE(orig); + return enlarged; +} + +static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) +{ + int row; + size_t bytes_per_row = (size_t)w * bytes_per_pixel; + stbi_uc temp[2048]; + stbi_uc *bytes = (stbi_uc *)image; + + for (row = 0; row < (h>>1); row++) { + stbi_uc *row0 = bytes + row*bytes_per_row; + stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; + // swap row0 with row1 + size_t bytes_left = bytes_per_row; + while (bytes_left) { + size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); + memcpy(temp, row0, bytes_copy); + memcpy(row0, row1, bytes_copy); + memcpy(row1, temp, bytes_copy); + row0 += bytes_copy; + row1 += bytes_copy; + bytes_left -= bytes_copy; + } + } +} + +#ifndef STBI_NO_GIF +static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) +{ + int slice; + int slice_size = w * h * bytes_per_pixel; + + stbi_uc *bytes = (stbi_uc *)image; + for (slice = 0; slice < z; ++slice) { + stbi__vertical_flip(bytes, w, h, bytes_per_pixel); + bytes += slice_size; + } +} +#endif + +static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); + + if (result == NULL) + return NULL; + + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + + if (ri.bits_per_channel != 8) { + result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 8; + } + + // @TODO: move stbi__convert_format to here + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); + } + + return (unsigned char *) result; +} + +static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); + + if (result == NULL) + return NULL; + + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + + if (ri.bits_per_channel != 16) { + result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 16; + } + + // @TODO: move stbi__convert_format16 to here + // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); + } + + return (stbi__uint16 *) result; +} + +#if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR) +static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) +{ + if (stbi__vertically_flip_on_load && result != NULL) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); + } +} +#endif + +#ifndef STBI_NO_STDIO + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); +STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); +#endif + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) +{ + return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); +} +#endif + +static FILE *stbi__fopen(char const *filename, char const *mode) +{ + FILE *f; +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) + wchar_t wMode[64]; + wchar_t wFilename[1024]; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename))) + return 0; + + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode))) + return 0; + +#if _MSC_VER >= 1400 + if (0 != _wfopen_s(&f, wFilename, wMode)) + f = 0; +#else + f = _wfopen(wFilename, wMode); +#endif + +#elif defined(_MSC_VER) && _MSC_VER >= 1400 + if (0 != fopen_s(&f, filename, mode)) + f=0; +#else + f = fopen(filename, mode); +#endif + return f; +} + + +STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + unsigned char *result; + if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__uint16 *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + stbi__uint16 *result; + if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file_16(f,x,y,comp,req_comp); + fclose(f); + return result; +} + + +#endif //!STBI_NO_STDIO + +STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_mem(&s,buffer,len); + + result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); + if (stbi__vertically_flip_on_load) { + stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); + } + + return result; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *data; + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + stbi__result_info ri; + float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); + if (hdr_data) + stbi__float_postprocess(hdr_data,x,y,comp,req_comp); + return hdr_data; + } + #endif + data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); + if (data) + return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); + return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); +} + +STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_STDIO +STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + float *result; + FILE *f = stbi__fopen(filename, "rb"); + if (!f) return stbi__errpf("can't fopen", "Unable to open file"); + result = stbi_loadf_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_file(&s,f); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} +#endif // !STBI_NO_STDIO + +#endif // !STBI_NO_LINEAR + +// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is +// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always +// reports false! + +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(buffer); + STBI_NOTUSED(len); + return 0; + #endif +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result=0; + if (f) { + result = stbi_is_hdr_from_file(f); + fclose(f); + } + return result; +} + +STBIDEF int stbi_is_hdr_from_file(FILE *f) +{ + #ifndef STBI_NO_HDR + long pos = ftell(f); + int res; + stbi__context s; + stbi__start_file(&s,f); + res = stbi__hdr_test(&s); + fseek(f, pos, SEEK_SET); + return res; + #else + STBI_NOTUSED(f); + return 0; + #endif +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(clbk); + STBI_NOTUSED(user); + return 0; + #endif +} + +#ifndef STBI_NO_LINEAR +static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; + +STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } +STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } +#endif + +static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; + +STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } +STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } + + +////////////////////////////////////////////////////////////////////////////// +// +// Common code used by all image loaders +// + +enum +{ + STBI__SCAN_load=0, + STBI__SCAN_type, + STBI__SCAN_header +}; + +static void stbi__refill_buffer(stbi__context *s) +{ + int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); + s->callback_already_read += (int) (s->img_buffer - s->img_buffer_original); + if (n == 0) { + // at end of file, treat same as if from memory, but need to handle case + // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file + s->read_from_callbacks = 0; + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start+1; + *s->img_buffer = 0; + } else { + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start + n; + } +} + +stbi_inline static stbi_uc stbi__get8(stbi__context *s) +{ + if (s->img_buffer < s->img_buffer_end) + return *s->img_buffer++; + if (s->read_from_callbacks) { + stbi__refill_buffer(s); + return *s->img_buffer++; + } + return 0; +} + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_HDR) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +stbi_inline static int stbi__at_eof(stbi__context *s) +{ + if (s->io.read) { + if (!(s->io.eof)(s->io_user_data)) return 0; + // if feof() is true, check if buffer = end + // special case: we've only got the special 0 character at the end + if (s->read_from_callbacks == 0) return 1; + } + + return s->img_buffer >= s->img_buffer_end; +} +#endif + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) +// nothing +#else +static void stbi__skip(stbi__context *s, int n) +{ + if (n == 0) return; // already there! + if (n < 0) { + s->img_buffer = s->img_buffer_end; + return; + } + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + s->img_buffer = s->img_buffer_end; + (s->io.skip)(s->io_user_data, n - blen); + return; + } + } + s->img_buffer += n; +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_TGA) && defined(STBI_NO_HDR) && defined(STBI_NO_PNM) +// nothing +#else +static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) +{ + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + int res, count; + + memcpy(buffer, s->img_buffer, blen); + + count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); + res = (count == (n-blen)); + s->img_buffer = s->img_buffer_end; + return res; + } + } + + if (s->img_buffer+n <= s->img_buffer_end) { + memcpy(buffer, s->img_buffer, n); + s->img_buffer += n; + return 1; + } else + return 0; +} +#endif + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) +// nothing +#else +static int stbi__get16be(stbi__context *s) +{ + int z = stbi__get8(s); + return (z << 8) + stbi__get8(s); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) +// nothing +#else +static stbi__uint32 stbi__get32be(stbi__context *s) +{ + stbi__uint32 z = stbi__get16be(s); + return (z << 16) + stbi__get16be(s); +} +#endif + +#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) +// nothing +#else +static int stbi__get16le(stbi__context *s) +{ + int z = stbi__get8(s); + return z + (stbi__get8(s) << 8); +} +#endif + +#ifndef STBI_NO_BMP +static stbi__uint32 stbi__get32le(stbi__context *s) +{ + stbi__uint32 z = stbi__get16le(s); + return z + (stbi__get16le(s) << 16); +} +#endif + +#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +////////////////////////////////////////////////////////////////////////////// +// +// generic converter from built-in img_n to req_comp +// individual types do this automatically as much as possible (e.g. jpeg +// does all cases internally since it needs to colorspace convert anyway, +// and it never has alpha, so very few cases ). png can automatically +// interleave an alpha=255 channel, but falls back to this for other cases +// +// assume data buffer is malloced, so malloc a new one and free that one +// only failure mode is malloc failing + +static stbi_uc stbi__compute_y(int r, int g, int b) +{ + return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + unsigned char *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); + if (good == NULL) { + STBI_FREE(data); + return stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + unsigned char *src = data + j * x * img_n ; + unsigned char *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) +// nothing +#else +static stbi__uint16 stbi__compute_y_16(int r, int g, int b) +{ + return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) +// nothing +#else +static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + stbi__uint16 *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); + if (good == NULL) { + STBI_FREE(data); + return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + stbi__uint16 *src = data + j * x * img_n ; + stbi__uint16 *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return (stbi__uint16*) stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) +{ + int i,k,n; + float *output; + if (!data) return NULL; + output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); + } + } + if (n < comp) { + for (i=0; i < x*y; ++i) { + output[i*comp + n] = data[i*comp + n]/255.0f; + } + } + STBI_FREE(data); + return output; +} +#endif + +#ifndef STBI_NO_HDR +#define stbi__float2int(x) ((int) (x)) +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) +{ + int i,k,n; + stbi_uc *output; + if (!data) return NULL; + output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + if (k < comp) { + float z = data[i*comp+k] * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + } + STBI_FREE(data); + return output; +} +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// "baseline" JPEG/JFIF decoder +// +// simple implementation +// - doesn't support delayed output of y-dimension +// - simple interface (only one output format: 8-bit interleaved RGB) +// - doesn't try to recover corrupt jpegs +// - doesn't allow partial loading, loading multiple at once +// - still fast on x86 (copying globals into locals doesn't help x86) +// - allocates lots of intermediate memory (full size of all components) +// - non-interleaved case requires this anyway +// - allows good upsampling (see next) +// high-quality +// - upsampled channels are bilinearly interpolated, even across blocks +// - quality integer IDCT derived from IJG's 'slow' +// performance +// - fast huffman; reasonable integer IDCT +// - some SIMD kernels for common paths on targets with SSE2/NEON +// - uses a lot of intermediate memory, could cache poorly + +#ifndef STBI_NO_JPEG + +// huffman decoding acceleration +#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache + +typedef struct +{ + stbi_uc fast[1 << FAST_BITS]; + // weirdly, repacking this into AoS is a 10% speed loss, instead of a win + stbi__uint16 code[256]; + stbi_uc values[256]; + stbi_uc size[257]; + unsigned int maxcode[18]; + int delta[17]; // old 'firstsymbol' - old 'firstcode' +} stbi__huffman; + +typedef struct +{ + stbi__context *s; + stbi__huffman huff_dc[4]; + stbi__huffman huff_ac[4]; + stbi__uint16 dequant[4][64]; + stbi__int16 fast_ac[4][1 << FAST_BITS]; + +// sizes for components, interleaved MCUs + int img_h_max, img_v_max; + int img_mcu_x, img_mcu_y; + int img_mcu_w, img_mcu_h; + +// definition of jpeg image component + struct + { + int id; + int h,v; + int tq; + int hd,ha; + int dc_pred; + + int x,y,w2,h2; + stbi_uc *data; + void *raw_data, *raw_coeff; + stbi_uc *linebuf; + short *coeff; // progressive only + int coeff_w, coeff_h; // number of 8x8 coefficient blocks + } img_comp[4]; + + stbi__uint32 code_buffer; // jpeg entropy-coded buffer + int code_bits; // number of valid bits + unsigned char marker; // marker seen while filling entropy buffer + int nomore; // flag if we saw a marker so must stop + + int progressive; + int spec_start; + int spec_end; + int succ_high; + int succ_low; + int eob_run; + int jfif; + int app14_color_transform; // Adobe APP14 tag + int rgb; + + int scan_n, order[4]; + int restart_interval, todo; + +// kernels + void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); + void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); + stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); +} stbi__jpeg; + +static int stbi__build_huffman(stbi__huffman *h, int *count) +{ + int i,j,k=0; + unsigned int code; + // build size list for each symbol (from JPEG spec) + for (i=0; i < 16; ++i) + for (j=0; j < count[i]; ++j) + h->size[k++] = (stbi_uc) (i+1); + h->size[k] = 0; + + // compute actual symbols (from jpeg spec) + code = 0; + k = 0; + for(j=1; j <= 16; ++j) { + // compute delta to add to code to compute symbol id + h->delta[j] = k - code; + if (h->size[k] == j) { + while (h->size[k] == j) + h->code[k++] = (stbi__uint16) (code++); + if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); + } + // compute largest code + 1 for this size, preshifted as needed later + h->maxcode[j] = code << (16-j); + code <<= 1; + } + h->maxcode[j] = 0xffffffff; + + // build non-spec acceleration table; 255 is flag for not-accelerated + memset(h->fast, 255, 1 << FAST_BITS); + for (i=0; i < k; ++i) { + int s = h->size[i]; + if (s <= FAST_BITS) { + int c = h->code[i] << (FAST_BITS-s); + int m = 1 << (FAST_BITS-s); + for (j=0; j < m; ++j) { + h->fast[c+j] = (stbi_uc) i; + } + } + } + return 1; +} + +// build a table that decodes both magnitude and value of small ACs in +// one go. +static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) +{ + int i; + for (i=0; i < (1 << FAST_BITS); ++i) { + stbi_uc fast = h->fast[i]; + fast_ac[i] = 0; + if (fast < 255) { + int rs = h->values[fast]; + int run = (rs >> 4) & 15; + int magbits = rs & 15; + int len = h->size[fast]; + + if (magbits && len + magbits <= FAST_BITS) { + // magnitude code followed by receive_extend code + int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); + int m = 1 << (magbits - 1); + if (k < m) k += (~0U << magbits) + 1; + // if the result is small enough, we can fit it in fast_ac table + if (k >= -128 && k <= 127) + fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); + } + } + } +} + +static void stbi__grow_buffer_unsafe(stbi__jpeg *j) +{ + do { + unsigned int b = j->nomore ? 0 : stbi__get8(j->s); + if (b == 0xff) { + int c = stbi__get8(j->s); + while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes + if (c != 0) { + j->marker = (unsigned char) c; + j->nomore = 1; + return; + } + } + j->code_buffer |= b << (24 - j->code_bits); + j->code_bits += 8; + } while (j->code_bits <= 24); +} + +// (1 << n) - 1 +static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; + +// decode a jpeg huffman value from the bitstream +stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) +{ + unsigned int temp; + int c,k; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + // look at the top FAST_BITS and determine what symbol ID it is, + // if the code is <= FAST_BITS + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + k = h->fast[c]; + if (k < 255) { + int s = h->size[k]; + if (s > j->code_bits) + return -1; + j->code_buffer <<= s; + j->code_bits -= s; + return h->values[k]; + } + + // naive test is to shift the code_buffer down so k bits are + // valid, then test against maxcode. To speed this up, we've + // preshifted maxcode left so that it has (16-k) 0s at the + // end; in other words, regardless of the number of bits, it + // wants to be compared against something shifted to have 16; + // that way we don't need to shift inside the loop. + temp = j->code_buffer >> 16; + for (k=FAST_BITS+1 ; ; ++k) + if (temp < h->maxcode[k]) + break; + if (k == 17) { + // error! code not found + j->code_bits -= 16; + return -1; + } + + if (k > j->code_bits) + return -1; + + // convert the huffman code to the symbol id + c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; + STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); + + // convert the id to a symbol + j->code_bits -= k; + j->code_buffer <<= k; + return h->values[c]; +} + +// bias[n] = (-1<<n) + 1 +static const int stbi__jbias[16] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767}; + +// combined JPEG 'receive' and JPEG 'extend', since baseline +// always extends everything it receives. +stbi_inline static int stbi__extend_receive(stbi__jpeg *j, int n) +{ + unsigned int k; + int sgn; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + + sgn = (stbi__int32)j->code_buffer >> 31; // sign bit is always in MSB + k = stbi_lrot(j->code_buffer, n); + if (n < 0 || n >= (int) (sizeof(stbi__bmask)/sizeof(*stbi__bmask))) return 0; + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k + (stbi__jbias[n] & ~sgn); +} + +// get some unsigned bits +stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) +{ + unsigned int k; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k; +} + +stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) +{ + unsigned int k; + if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); + k = j->code_buffer; + j->code_buffer <<= 1; + --j->code_bits; + return k & 0x80000000; +} + +// given a value that's at position X in the zigzag stream, +// where does it appear in the 8x8 matrix coded as row-major? +static const stbi_uc stbi__jpeg_dezigzag[64+15] = +{ + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 7, 14, 21, 28, + 35, 42, 49, 56, 57, 50, 43, 36, + 29, 22, 15, 23, 30, 37, 44, 51, + 58, 59, 52, 45, 38, 31, 39, 46, + 53, 60, 61, 54, 47, 55, 62, 63, + // let corrupt input sample past end + 63, 63, 63, 63, 63, 63, 63, 63, + 63, 63, 63, 63, 63, 63, 63 +}; + +// decode one 64-entry block-- +static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) +{ + int diff,dc,k; + int t; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + + // 0 all the ac values now so we can do it 32-bits at a time + memset(data,0,64*sizeof(data[0])); + + diff = t ? stbi__extend_receive(j, t) : 0; + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc * dequant[0]); + + // decode AC components, see JPEG spec + k = 1; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * dequant[zig]); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (rs != 0xf0) break; // end block + k += 16; + } else { + k += r; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); + } + } + } while (k < 64); + return 1; +} + +static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) +{ + int diff,dc; + int t; + if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + if (j->succ_high == 0) { + // first scan for DC coefficient, must be first + memset(data,0,64*sizeof(data[0])); // 0 all the ac values now + t = stbi__jpeg_huff_decode(j, hdc); + if (t == -1) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + diff = t ? stbi__extend_receive(j, t) : 0; + + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc << j->succ_low); + } else { + // refinement scan for DC coefficient + if (stbi__jpeg_get_bit(j)) + data[0] += (short) (1 << j->succ_low); + } + return 1; +} + +// @OPTIMIZE: store non-zigzagged during the decode passes, +// and only de-zigzag when dequantizing +static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) +{ + int k; + if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->succ_high == 0) { + int shift = j->succ_low; + + if (j->eob_run) { + --j->eob_run; + return 1; + } + + k = j->spec_start; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) << shift); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r); + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + --j->eob_run; + break; + } + k += 16; + } else { + k += r; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) << shift); + } + } + } while (k <= j->spec_end); + } else { + // refinement scan for these AC coefficients + + short bit = (short) (1 << j->succ_low); + + if (j->eob_run) { + --j->eob_run; + for (k = j->spec_start; k <= j->spec_end; ++k) { + short *p = &data[stbi__jpeg_dezigzag[k]]; + if (*p != 0) + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } + } else { + k = j->spec_start; + do { + int r,s; + int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r) - 1; + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + r = 64; // force end of block + } else { + // r=15 s=0 should write 16 0s, so we just do + // a run of 15 0s and then write s (which is 0), + // so we don't have to do anything special here + } + } else { + if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); + // sign bit + if (stbi__jpeg_get_bit(j)) + s = bit; + else + s = -bit; + } + + // advance by r + while (k <= j->spec_end) { + short *p = &data[stbi__jpeg_dezigzag[k++]]; + if (*p != 0) { + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } else { + if (r == 0) { + *p = (short) s; + break; + } + --r; + } + } + } while (k <= j->spec_end); + } + } + return 1; +} + +// take a -128..127 value and stbi__clamp it and convert to 0..255 +stbi_inline static stbi_uc stbi__clamp(int x) +{ + // trick to use a single test to catch both cases + if ((unsigned int) x > 255) { + if (x < 0) return 0; + if (x > 255) return 255; + } + return (stbi_uc) x; +} + +#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) +#define stbi__fsh(x) ((x) * 4096) + +// derived from jidctint -- DCT_ISLOW +#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ + int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ + p2 = s2; \ + p3 = s6; \ + p1 = (p2+p3) * stbi__f2f(0.5411961f); \ + t2 = p1 + p3*stbi__f2f(-1.847759065f); \ + t3 = p1 + p2*stbi__f2f( 0.765366865f); \ + p2 = s0; \ + p3 = s4; \ + t0 = stbi__fsh(p2+p3); \ + t1 = stbi__fsh(p2-p3); \ + x0 = t0+t3; \ + x3 = t0-t3; \ + x1 = t1+t2; \ + x2 = t1-t2; \ + t0 = s7; \ + t1 = s5; \ + t2 = s3; \ + t3 = s1; \ + p3 = t0+t2; \ + p4 = t1+t3; \ + p1 = t0+t3; \ + p2 = t1+t2; \ + p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ + t0 = t0*stbi__f2f( 0.298631336f); \ + t1 = t1*stbi__f2f( 2.053119869f); \ + t2 = t2*stbi__f2f( 3.072711026f); \ + t3 = t3*stbi__f2f( 1.501321110f); \ + p1 = p5 + p1*stbi__f2f(-0.899976223f); \ + p2 = p5 + p2*stbi__f2f(-2.562915447f); \ + p3 = p3*stbi__f2f(-1.961570560f); \ + p4 = p4*stbi__f2f(-0.390180644f); \ + t3 += p1+p4; \ + t2 += p2+p3; \ + t1 += p2+p4; \ + t0 += p1+p3; + +static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) +{ + int i,val[64],*v=val; + stbi_uc *o; + short *d = data; + + // columns + for (i=0; i < 8; ++i,++d, ++v) { + // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing + if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 + && d[40]==0 && d[48]==0 && d[56]==0) { + // no shortcut 0 seconds + // (1|2|3|4|5|6|7)==0 0 seconds + // all separate -0.047 seconds + // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds + int dcterm = d[0]*4; + v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; + } else { + STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) + // constants scaled things up by 1<<12; let's bring them back + // down, but keep 2 extra bits of precision + x0 += 512; x1 += 512; x2 += 512; x3 += 512; + v[ 0] = (x0+t3) >> 10; + v[56] = (x0-t3) >> 10; + v[ 8] = (x1+t2) >> 10; + v[48] = (x1-t2) >> 10; + v[16] = (x2+t1) >> 10; + v[40] = (x2-t1) >> 10; + v[24] = (x3+t0) >> 10; + v[32] = (x3-t0) >> 10; + } + } + + for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { + // no fast case since the first 1D IDCT spread components out + STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) + // constants scaled things up by 1<<12, plus we had 1<<2 from first + // loop, plus horizontal and vertical each scale by sqrt(8) so together + // we've got an extra 1<<3, so 1<<17 total we need to remove. + // so we want to round that, which means adding 0.5 * 1<<17, + // aka 65536. Also, we'll end up with -128 to 127 that we want + // to encode as 0..255 by adding 128, so we'll add that before the shift + x0 += 65536 + (128<<17); + x1 += 65536 + (128<<17); + x2 += 65536 + (128<<17); + x3 += 65536 + (128<<17); + // tried computing the shifts into temps, or'ing the temps to see + // if any were out of range, but that was slower + o[0] = stbi__clamp((x0+t3) >> 17); + o[7] = stbi__clamp((x0-t3) >> 17); + o[1] = stbi__clamp((x1+t2) >> 17); + o[6] = stbi__clamp((x1-t2) >> 17); + o[2] = stbi__clamp((x2+t1) >> 17); + o[5] = stbi__clamp((x2-t1) >> 17); + o[3] = stbi__clamp((x3+t0) >> 17); + o[4] = stbi__clamp((x3-t0) >> 17); + } +} + +#ifdef STBI_SSE2 +// sse2 integer IDCT. not the fastest possible implementation but it +// produces bit-identical results to the generic C version so it's +// fully "transparent". +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + // This is constructed to match our regular (generic) integer IDCT exactly. + __m128i row0, row1, row2, row3, row4, row5, row6, row7; + __m128i tmp; + + // dot product constant: even elems=x, odd elems=y + #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) + + // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) + // out(1) = c1[even]*x + c1[odd]*y + #define dct_rot(out0,out1, x,y,c0,c1) \ + __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ + __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ + __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ + __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ + __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ + __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) + + // out = in << 12 (in 16-bit, out 32-bit) + #define dct_widen(out, in) \ + __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ + __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) + + // wide add + #define dct_wadd(out, a, b) \ + __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_add_epi32(a##_h, b##_h) + + // wide sub + #define dct_wsub(out, a, b) \ + __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) + + // butterfly a/b, add bias, then shift by "s" and pack + #define dct_bfly32o(out0, out1, a,b,bias,s) \ + { \ + __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ + __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ + dct_wadd(sum, abiased, b); \ + dct_wsub(dif, abiased, b); \ + out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ + out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ + } + + // 8-bit interleave step (for transposes) + #define dct_interleave8(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi8(a, b); \ + b = _mm_unpackhi_epi8(tmp, b) + + // 16-bit interleave step (for transposes) + #define dct_interleave16(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi16(a, b); \ + b = _mm_unpackhi_epi16(tmp, b) + + #define dct_pass(bias,shift) \ + { \ + /* even part */ \ + dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ + __m128i sum04 = _mm_add_epi16(row0, row4); \ + __m128i dif04 = _mm_sub_epi16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ + dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ + __m128i sum17 = _mm_add_epi16(row1, row7); \ + __m128i sum35 = _mm_add_epi16(row3, row5); \ + dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ + dct_wadd(x4, y0o, y4o); \ + dct_wadd(x5, y1o, y5o); \ + dct_wadd(x6, y2o, y5o); \ + dct_wadd(x7, y3o, y4o); \ + dct_bfly32o(row0,row7, x0,x7,bias,shift); \ + dct_bfly32o(row1,row6, x1,x6,bias,shift); \ + dct_bfly32o(row2,row5, x2,x5,bias,shift); \ + dct_bfly32o(row3,row4, x3,x4,bias,shift); \ + } + + __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); + __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); + __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); + __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); + __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); + __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); + __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); + __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); + + // rounding biases in column/row passes, see stbi__idct_block for explanation. + __m128i bias_0 = _mm_set1_epi32(512); + __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); + + // load + row0 = _mm_load_si128((const __m128i *) (data + 0*8)); + row1 = _mm_load_si128((const __m128i *) (data + 1*8)); + row2 = _mm_load_si128((const __m128i *) (data + 2*8)); + row3 = _mm_load_si128((const __m128i *) (data + 3*8)); + row4 = _mm_load_si128((const __m128i *) (data + 4*8)); + row5 = _mm_load_si128((const __m128i *) (data + 5*8)); + row6 = _mm_load_si128((const __m128i *) (data + 6*8)); + row7 = _mm_load_si128((const __m128i *) (data + 7*8)); + + // column pass + dct_pass(bias_0, 10); + + { + // 16bit 8x8 transpose pass 1 + dct_interleave16(row0, row4); + dct_interleave16(row1, row5); + dct_interleave16(row2, row6); + dct_interleave16(row3, row7); + + // transpose pass 2 + dct_interleave16(row0, row2); + dct_interleave16(row1, row3); + dct_interleave16(row4, row6); + dct_interleave16(row5, row7); + + // transpose pass 3 + dct_interleave16(row0, row1); + dct_interleave16(row2, row3); + dct_interleave16(row4, row5); + dct_interleave16(row6, row7); + } + + // row pass + dct_pass(bias_1, 17); + + { + // pack + __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 + __m128i p1 = _mm_packus_epi16(row2, row3); + __m128i p2 = _mm_packus_epi16(row4, row5); + __m128i p3 = _mm_packus_epi16(row6, row7); + + // 8bit 8x8 transpose pass 1 + dct_interleave8(p0, p2); // a0e0a1e1... + dct_interleave8(p1, p3); // c0g0c1g1... + + // transpose pass 2 + dct_interleave8(p0, p1); // a0c0e0g0... + dct_interleave8(p2, p3); // b0d0f0h0... + + // transpose pass 3 + dct_interleave8(p0, p2); // a0b0c0d0... + dct_interleave8(p1, p3); // a4b4c4d4... + + // store + _mm_storel_epi64((__m128i *) out, p0); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p2); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p1); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p3); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); + } + +#undef dct_const +#undef dct_rot +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_interleave8 +#undef dct_interleave16 +#undef dct_pass +} + +#endif // STBI_SSE2 + +#ifdef STBI_NEON + +// NEON integer IDCT. should produce bit-identical +// results to the generic C version. +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; + + int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); + int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); + int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); + int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); + int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); + int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); + int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); + int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); + int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); + int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); + int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); + int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); + +#define dct_long_mul(out, inq, coeff) \ + int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) + +#define dct_long_mac(out, acc, inq, coeff) \ + int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) + +#define dct_widen(out, inq) \ + int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ + int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) + +// wide add +#define dct_wadd(out, a, b) \ + int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vaddq_s32(a##_h, b##_h) + +// wide sub +#define dct_wsub(out, a, b) \ + int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vsubq_s32(a##_h, b##_h) + +// butterfly a/b, then shift using "shiftop" by "s" and pack +#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ + { \ + dct_wadd(sum, a, b); \ + dct_wsub(dif, a, b); \ + out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ + out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ + } + +#define dct_pass(shiftop, shift) \ + { \ + /* even part */ \ + int16x8_t sum26 = vaddq_s16(row2, row6); \ + dct_long_mul(p1e, sum26, rot0_0); \ + dct_long_mac(t2e, p1e, row6, rot0_1); \ + dct_long_mac(t3e, p1e, row2, rot0_2); \ + int16x8_t sum04 = vaddq_s16(row0, row4); \ + int16x8_t dif04 = vsubq_s16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + int16x8_t sum15 = vaddq_s16(row1, row5); \ + int16x8_t sum17 = vaddq_s16(row1, row7); \ + int16x8_t sum35 = vaddq_s16(row3, row5); \ + int16x8_t sum37 = vaddq_s16(row3, row7); \ + int16x8_t sumodd = vaddq_s16(sum17, sum35); \ + dct_long_mul(p5o, sumodd, rot1_0); \ + dct_long_mac(p1o, p5o, sum17, rot1_1); \ + dct_long_mac(p2o, p5o, sum35, rot1_2); \ + dct_long_mul(p3o, sum37, rot2_0); \ + dct_long_mul(p4o, sum15, rot2_1); \ + dct_wadd(sump13o, p1o, p3o); \ + dct_wadd(sump24o, p2o, p4o); \ + dct_wadd(sump23o, p2o, p3o); \ + dct_wadd(sump14o, p1o, p4o); \ + dct_long_mac(x4, sump13o, row7, rot3_0); \ + dct_long_mac(x5, sump24o, row5, rot3_1); \ + dct_long_mac(x6, sump23o, row3, rot3_2); \ + dct_long_mac(x7, sump14o, row1, rot3_3); \ + dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ + dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ + dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ + dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ + } + + // load + row0 = vld1q_s16(data + 0*8); + row1 = vld1q_s16(data + 1*8); + row2 = vld1q_s16(data + 2*8); + row3 = vld1q_s16(data + 3*8); + row4 = vld1q_s16(data + 4*8); + row5 = vld1q_s16(data + 5*8); + row6 = vld1q_s16(data + 6*8); + row7 = vld1q_s16(data + 7*8); + + // add DC bias + row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); + + // column pass + dct_pass(vrshrn_n_s32, 10); + + // 16bit 8x8 transpose + { +// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. +// whether compilers actually get this is another story, sadly. +#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } +#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } + + // pass 1 + dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 + dct_trn16(row2, row3); + dct_trn16(row4, row5); + dct_trn16(row6, row7); + + // pass 2 + dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 + dct_trn32(row1, row3); + dct_trn32(row4, row6); + dct_trn32(row5, row7); + + // pass 3 + dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 + dct_trn64(row1, row5); + dct_trn64(row2, row6); + dct_trn64(row3, row7); + +#undef dct_trn16 +#undef dct_trn32 +#undef dct_trn64 + } + + // row pass + // vrshrn_n_s32 only supports shifts up to 16, we need + // 17. so do a non-rounding shift of 16 first then follow + // up with a rounding shift by 1. + dct_pass(vshrn_n_s32, 16); + + { + // pack and round + uint8x8_t p0 = vqrshrun_n_s16(row0, 1); + uint8x8_t p1 = vqrshrun_n_s16(row1, 1); + uint8x8_t p2 = vqrshrun_n_s16(row2, 1); + uint8x8_t p3 = vqrshrun_n_s16(row3, 1); + uint8x8_t p4 = vqrshrun_n_s16(row4, 1); + uint8x8_t p5 = vqrshrun_n_s16(row5, 1); + uint8x8_t p6 = vqrshrun_n_s16(row6, 1); + uint8x8_t p7 = vqrshrun_n_s16(row7, 1); + + // again, these can translate into one instruction, but often don't. +#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } +#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } + + // sadly can't use interleaved stores here since we only write + // 8 bytes to each scan line! + + // 8x8 8-bit transpose pass 1 + dct_trn8_8(p0, p1); + dct_trn8_8(p2, p3); + dct_trn8_8(p4, p5); + dct_trn8_8(p6, p7); + + // pass 2 + dct_trn8_16(p0, p2); + dct_trn8_16(p1, p3); + dct_trn8_16(p4, p6); + dct_trn8_16(p5, p7); + + // pass 3 + dct_trn8_32(p0, p4); + dct_trn8_32(p1, p5); + dct_trn8_32(p2, p6); + dct_trn8_32(p3, p7); + + // store + vst1_u8(out, p0); out += out_stride; + vst1_u8(out, p1); out += out_stride; + vst1_u8(out, p2); out += out_stride; + vst1_u8(out, p3); out += out_stride; + vst1_u8(out, p4); out += out_stride; + vst1_u8(out, p5); out += out_stride; + vst1_u8(out, p6); out += out_stride; + vst1_u8(out, p7); + +#undef dct_trn8_8 +#undef dct_trn8_16 +#undef dct_trn8_32 + } + +#undef dct_long_mul +#undef dct_long_mac +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_pass +} + +#endif // STBI_NEON + +#define STBI__MARKER_none 0xff +// if there's a pending marker from the entropy stream, return that +// otherwise, fetch from the stream and get a marker. if there's no +// marker, return 0xff, which is never a valid marker value +static stbi_uc stbi__get_marker(stbi__jpeg *j) +{ + stbi_uc x; + if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } + x = stbi__get8(j->s); + if (x != 0xff) return STBI__MARKER_none; + while (x == 0xff) + x = stbi__get8(j->s); // consume repeated 0xff fill bytes + return x; +} + +// in each scan, we'll have scan_n components, and the order +// of the components is specified by order[] +#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) + +// after a restart interval, stbi__jpeg_reset the entropy decoder and +// the dc prediction +static void stbi__jpeg_reset(stbi__jpeg *j) +{ + j->code_bits = 0; + j->code_buffer = 0; + j->nomore = 0; + j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; + j->marker = STBI__MARKER_none; + j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; + j->eob_run = 0; + // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, + // since we don't even allow 1<<30 pixels +} + +static int stbi__parse_entropy_coded_data(stbi__jpeg *z) +{ + stbi__jpeg_reset(z); + if (!z->progressive) { + if (z->scan_n == 1) { + int i,j; + STBI_SIMD_ALIGN(short, data[64]); + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + // if it's NOT a restart, then just bail, so we get corrupt data + // rather than no data + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + STBI_SIMD_ALIGN(short, data[64]); + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x)*8; + int y2 = (j*z->img_comp[n].v + y)*8; + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } else { + if (z->scan_n == 1) { + int i,j; + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + if (z->spec_start == 0) { + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } else { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) + return 0; + } + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x); + int y2 = (j*z->img_comp[n].v + y); + short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } +} + +static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) +{ + int i; + for (i=0; i < 64; ++i) + data[i] *= dequant[i]; +} + +static void stbi__jpeg_finish(stbi__jpeg *z) +{ + if (z->progressive) { + // dequantize and idct the data + int i,j,n; + for (n=0; n < z->s->img_n; ++n) { + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + } + } + } + } +} + +static int stbi__process_marker(stbi__jpeg *z, int m) +{ + int L; + switch (m) { + case STBI__MARKER_none: // no marker found + return stbi__err("expected marker","Corrupt JPEG"); + + case 0xDD: // DRI - specify restart interval + if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); + z->restart_interval = stbi__get16be(z->s); + return 1; + + case 0xDB: // DQT - define quantization table + L = stbi__get16be(z->s)-2; + while (L > 0) { + int q = stbi__get8(z->s); + int p = q >> 4, sixteen = (p != 0); + int t = q & 15,i; + if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); + if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); + + for (i=0; i < 64; ++i) + z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); + L -= (sixteen ? 129 : 65); + } + return L==0; + + case 0xC4: // DHT - define huffman table + L = stbi__get16be(z->s)-2; + while (L > 0) { + stbi_uc *v; + int sizes[16],i,n=0; + int q = stbi__get8(z->s); + int tc = q >> 4; + int th = q & 15; + if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); + for (i=0; i < 16; ++i) { + sizes[i] = stbi__get8(z->s); + n += sizes[i]; + } + L -= 17; + if (tc == 0) { + if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; + v = z->huff_dc[th].values; + } else { + if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; + v = z->huff_ac[th].values; + } + for (i=0; i < n; ++i) + v[i] = stbi__get8(z->s); + if (tc != 0) + stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); + L -= n; + } + return L==0; + } + + // check for comment block or APP blocks + if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { + L = stbi__get16be(z->s); + if (L < 2) { + if (m == 0xFE) + return stbi__err("bad COM len","Corrupt JPEG"); + else + return stbi__err("bad APP len","Corrupt JPEG"); + } + L -= 2; + + if (m == 0xE0 && L >= 5) { // JFIF APP0 segment + static const unsigned char tag[5] = {'J','F','I','F','\0'}; + int ok = 1; + int i; + for (i=0; i < 5; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 5; + if (ok) + z->jfif = 1; + } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment + static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; + int ok = 1; + int i; + for (i=0; i < 6; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 6; + if (ok) { + stbi__get8(z->s); // version + stbi__get16be(z->s); // flags0 + stbi__get16be(z->s); // flags1 + z->app14_color_transform = stbi__get8(z->s); // color transform + L -= 6; + } + } + + stbi__skip(z->s, L); + return 1; + } + + return stbi__err("unknown marker","Corrupt JPEG"); +} + +// after we see SOS +static int stbi__process_scan_header(stbi__jpeg *z) +{ + int i; + int Ls = stbi__get16be(z->s); + z->scan_n = stbi__get8(z->s); + if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); + if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); + for (i=0; i < z->scan_n; ++i) { + int id = stbi__get8(z->s), which; + int q = stbi__get8(z->s); + for (which = 0; which < z->s->img_n; ++which) + if (z->img_comp[which].id == id) + break; + if (which == z->s->img_n) return 0; // no match + z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); + z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); + z->order[i] = which; + } + + { + int aa; + z->spec_start = stbi__get8(z->s); + z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 + aa = stbi__get8(z->s); + z->succ_high = (aa >> 4); + z->succ_low = (aa & 15); + if (z->progressive) { + if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) + return stbi__err("bad SOS", "Corrupt JPEG"); + } else { + if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); + if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); + z->spec_end = 63; + } + } + + return 1; +} + +static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) +{ + int i; + for (i=0; i < ncomp; ++i) { + if (z->img_comp[i].raw_data) { + STBI_FREE(z->img_comp[i].raw_data); + z->img_comp[i].raw_data = NULL; + z->img_comp[i].data = NULL; + } + if (z->img_comp[i].raw_coeff) { + STBI_FREE(z->img_comp[i].raw_coeff); + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].coeff = 0; + } + if (z->img_comp[i].linebuf) { + STBI_FREE(z->img_comp[i].linebuf); + z->img_comp[i].linebuf = NULL; + } + } + return why; +} + +static int stbi__process_frame_header(stbi__jpeg *z, int scan) +{ + stbi__context *s = z->s; + int Lf,p,i,q, h_max=1,v_max=1,c; + Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG + p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline + s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG + s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + c = stbi__get8(s); + if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); + s->img_n = c; + for (i=0; i < c; ++i) { + z->img_comp[i].data = NULL; + z->img_comp[i].linebuf = NULL; + } + + if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); + + z->rgb = 0; + for (i=0; i < s->img_n; ++i) { + static const unsigned char rgb[3] = { 'R', 'G', 'B' }; + z->img_comp[i].id = stbi__get8(s); + if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) + ++z->rgb; + q = stbi__get8(s); + z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); + z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); + z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); + } + + if (scan != STBI__SCAN_load) return 1; + + if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); + + for (i=0; i < s->img_n; ++i) { + if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; + if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; + } + + // compute interleaved mcu info + z->img_h_max = h_max; + z->img_v_max = v_max; + z->img_mcu_w = h_max * 8; + z->img_mcu_h = v_max * 8; + // these sizes can't be more than 17 bits + z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; + z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; + + for (i=0; i < s->img_n; ++i) { + // number of effective pixels (e.g. for non-interleaved MCU) + z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; + z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; + // to simplify generation, we'll allocate enough memory to decode + // the bogus oversized data from using interleaved MCUs and their + // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't + // discard the extra data until colorspace conversion + // + // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) + // so these muls can't overflow with 32-bit ints (which we require) + z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; + z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; + z->img_comp[i].coeff = 0; + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].linebuf = NULL; + z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); + if (z->img_comp[i].raw_data == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + // align blocks for idct using mmx/sse + z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); + if (z->progressive) { + // w2, h2 are multiples of 8 (see above) + z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; + z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; + z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); + if (z->img_comp[i].raw_coeff == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); + } + } + + return 1; +} + +// use comparisons since in some cases we handle more than one case (e.g. SOF) +#define stbi__DNL(x) ((x) == 0xdc) +#define stbi__SOI(x) ((x) == 0xd8) +#define stbi__EOI(x) ((x) == 0xd9) +#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) +#define stbi__SOS(x) ((x) == 0xda) + +#define stbi__SOF_progressive(x) ((x) == 0xc2) + +static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) +{ + int m; + z->jfif = 0; + z->app14_color_transform = -1; // valid values are 0,1,2 + z->marker = STBI__MARKER_none; // initialize cached marker to empty + m = stbi__get_marker(z); + if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); + if (scan == STBI__SCAN_type) return 1; + m = stbi__get_marker(z); + while (!stbi__SOF(m)) { + if (!stbi__process_marker(z,m)) return 0; + m = stbi__get_marker(z); + while (m == STBI__MARKER_none) { + // some files have extra padding after their blocks, so ok, we'll scan + if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); + m = stbi__get_marker(z); + } + } + z->progressive = stbi__SOF_progressive(m); + if (!stbi__process_frame_header(z, scan)) return 0; + return 1; +} + +// decode image to YCbCr format +static int stbi__decode_jpeg_image(stbi__jpeg *j) +{ + int m; + for (m = 0; m < 4; m++) { + j->img_comp[m].raw_data = NULL; + j->img_comp[m].raw_coeff = NULL; + } + j->restart_interval = 0; + if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; + m = stbi__get_marker(j); + while (!stbi__EOI(m)) { + if (stbi__SOS(m)) { + if (!stbi__process_scan_header(j)) return 0; + if (!stbi__parse_entropy_coded_data(j)) return 0; + if (j->marker == STBI__MARKER_none ) { + // handle 0s at the end of image data from IP Kamera 9060 + while (!stbi__at_eof(j->s)) { + int x = stbi__get8(j->s); + if (x == 255) { + j->marker = stbi__get8(j->s); + break; + } + } + // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 + } + } else if (stbi__DNL(m)) { + int Ld = stbi__get16be(j->s); + stbi__uint32 NL = stbi__get16be(j->s); + if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); + if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); + } else { + if (!stbi__process_marker(j, m)) return 0; + } + m = stbi__get_marker(j); + } + if (j->progressive) + stbi__jpeg_finish(j); + return 1; +} + +// static jfif-centered resampling (across block boundaries) + +typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, + int w, int hs); + +#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) + +static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + STBI_NOTUSED(out); + STBI_NOTUSED(in_far); + STBI_NOTUSED(w); + STBI_NOTUSED(hs); + return in_near; +} + +static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples vertically for every one in input + int i; + STBI_NOTUSED(hs); + for (i=0; i < w; ++i) + out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); + return out; +} + +static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples horizontally for every one in input + int i; + stbi_uc *input = in_near; + + if (w == 1) { + // if only one sample, can't do any interpolation + out[0] = out[1] = input[0]; + return out; + } + + out[0] = input[0]; + out[1] = stbi__div4(input[0]*3 + input[1] + 2); + for (i=1; i < w-1; ++i) { + int n = 3*input[i]+2; + out[i*2+0] = stbi__div4(n+input[i-1]); + out[i*2+1] = stbi__div4(n+input[i+1]); + } + out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); + out[i*2+1] = input[w-1]; + + STBI_NOTUSED(in_far); + STBI_NOTUSED(hs); + + return out; +} + +#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) + +static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i,t0,t1; + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + out[0] = stbi__div4(t1+2); + for (i=1; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i=0,t0,t1; + + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + // process groups of 8 pixels for as long as we can. + // note we can't handle the last pixel in a row in this loop + // because we need to handle the filter boundary conditions. + for (; i < ((w-1) & ~7); i += 8) { +#if defined(STBI_SSE2) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + __m128i zero = _mm_setzero_si128(); + __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); + __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); + __m128i farw = _mm_unpacklo_epi8(farb, zero); + __m128i nearw = _mm_unpacklo_epi8(nearb, zero); + __m128i diff = _mm_sub_epi16(farw, nearw); + __m128i nears = _mm_slli_epi16(nearw, 2); + __m128i curr = _mm_add_epi16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + __m128i prv0 = _mm_slli_si128(curr, 2); + __m128i nxt0 = _mm_srli_si128(curr, 2); + __m128i prev = _mm_insert_epi16(prv0, t1, 0); + __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + __m128i bias = _mm_set1_epi16(8); + __m128i curs = _mm_slli_epi16(curr, 2); + __m128i prvd = _mm_sub_epi16(prev, curr); + __m128i nxtd = _mm_sub_epi16(next, curr); + __m128i curb = _mm_add_epi16(curs, bias); + __m128i even = _mm_add_epi16(prvd, curb); + __m128i odd = _mm_add_epi16(nxtd, curb); + + // interleave even and odd pixels, then undo scaling. + __m128i int0 = _mm_unpacklo_epi16(even, odd); + __m128i int1 = _mm_unpackhi_epi16(even, odd); + __m128i de0 = _mm_srli_epi16(int0, 4); + __m128i de1 = _mm_srli_epi16(int1, 4); + + // pack and write output + __m128i outv = _mm_packus_epi16(de0, de1); + _mm_storeu_si128((__m128i *) (out + i*2), outv); +#elif defined(STBI_NEON) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + uint8x8_t farb = vld1_u8(in_far + i); + uint8x8_t nearb = vld1_u8(in_near + i); + int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); + int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); + int16x8_t curr = vaddq_s16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + int16x8_t prv0 = vextq_s16(curr, curr, 7); + int16x8_t nxt0 = vextq_s16(curr, curr, 1); + int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); + int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + int16x8_t curs = vshlq_n_s16(curr, 2); + int16x8_t prvd = vsubq_s16(prev, curr); + int16x8_t nxtd = vsubq_s16(next, curr); + int16x8_t even = vaddq_s16(curs, prvd); + int16x8_t odd = vaddq_s16(curs, nxtd); + + // undo scaling and round, then store with even/odd phases interleaved + uint8x8x2_t o; + o.val[0] = vqrshrun_n_s16(even, 4); + o.val[1] = vqrshrun_n_s16(odd, 4); + vst2_u8(out + i*2, o); +#endif + + // "previous" value for next iter + t1 = 3*in_near[i+7] + in_far[i+7]; + } + + t0 = t1; + t1 = 3*in_near[i] + in_far[i]; + out[i*2] = stbi__div16(3*t1 + t0 + 8); + + for (++i; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} +#endif + +static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // resample with nearest-neighbor + int i,j; + STBI_NOTUSED(in_far); + for (i=0; i < w; ++i) + for (j=0; j < hs; ++j) + out[i*hs+j] = in_near[i]; + return out; +} + +// this is a reduced-precision calculation of YCbCr-to-RGB introduced +// to make sure the code produces the same results in both SIMD and scalar +#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) +static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) +{ + int i; + for (i=0; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) +{ + int i = 0; + +#ifdef STBI_SSE2 + // step == 3 is pretty ugly on the final interleave, and i'm not convinced + // it's useful in practice (you wouldn't use it for textures, for example). + // so just accelerate step == 4 case. + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + __m128i signflip = _mm_set1_epi8(-0x80); + __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); + __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); + __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); + __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); + __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); + __m128i xw = _mm_set1_epi16(255); // alpha channel + + for (; i+7 < count; i += 8) { + // load + __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); + __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); + __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); + __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 + __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 + + // unpack to short (and left-shift cr, cb by 8) + __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); + __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); + __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); + + // color transform + __m128i yws = _mm_srli_epi16(yw, 4); + __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); + __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); + __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); + __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); + __m128i rws = _mm_add_epi16(cr0, yws); + __m128i gwt = _mm_add_epi16(cb0, yws); + __m128i bws = _mm_add_epi16(yws, cb1); + __m128i gws = _mm_add_epi16(gwt, cr1); + + // descale + __m128i rw = _mm_srai_epi16(rws, 4); + __m128i bw = _mm_srai_epi16(bws, 4); + __m128i gw = _mm_srai_epi16(gws, 4); + + // back to byte, set up for transpose + __m128i brb = _mm_packus_epi16(rw, bw); + __m128i gxb = _mm_packus_epi16(gw, xw); + + // transpose to interleave channels + __m128i t0 = _mm_unpacklo_epi8(brb, gxb); + __m128i t1 = _mm_unpackhi_epi8(brb, gxb); + __m128i o0 = _mm_unpacklo_epi16(t0, t1); + __m128i o1 = _mm_unpackhi_epi16(t0, t1); + + // store + _mm_storeu_si128((__m128i *) (out + 0), o0); + _mm_storeu_si128((__m128i *) (out + 16), o1); + out += 32; + } + } +#endif + +#ifdef STBI_NEON + // in this version, step=3 support would be easy to add. but is there demand? + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + uint8x8_t signflip = vdup_n_u8(0x80); + int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); + int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); + int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); + int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); + + for (; i+7 < count; i += 8) { + // load + uint8x8_t y_bytes = vld1_u8(y + i); + uint8x8_t cr_bytes = vld1_u8(pcr + i); + uint8x8_t cb_bytes = vld1_u8(pcb + i); + int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); + int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); + + // expand to s16 + int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); + int16x8_t crw = vshll_n_s8(cr_biased, 7); + int16x8_t cbw = vshll_n_s8(cb_biased, 7); + + // color transform + int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); + int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); + int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); + int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); + int16x8_t rws = vaddq_s16(yws, cr0); + int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); + int16x8_t bws = vaddq_s16(yws, cb1); + + // undo scaling, round, convert to byte + uint8x8x4_t o; + o.val[0] = vqrshrun_n_s16(rws, 4); + o.val[1] = vqrshrun_n_s16(gws, 4); + o.val[2] = vqrshrun_n_s16(bws, 4); + o.val[3] = vdup_n_u8(255); + + // store, interleaving r/g/b/a + vst4_u8(out, o); + out += 8*4; + } + } +#endif + + for (; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} +#endif + +// set up the kernels +static void stbi__setup_jpeg(stbi__jpeg *j) +{ + j->idct_block_kernel = stbi__idct_block; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; + +#ifdef STBI_SSE2 + if (stbi__sse2_available()) { + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; + } +#endif + +#ifdef STBI_NEON + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; +#endif +} + +// clean up the temporary component buffers +static void stbi__cleanup_jpeg(stbi__jpeg *j) +{ + stbi__free_jpeg_components(j, j->s->img_n, 0); +} + +typedef struct +{ + resample_row_func resample; + stbi_uc *line0,*line1; + int hs,vs; // expansion factor in each axis + int w_lores; // horizontal pixels pre-expansion + int ystep; // how far through vertical expansion we are + int ypos; // which pre-expansion row we're on +} stbi__resample; + +// fast 0..255 * 0..255 => 0..255 rounded multiplication +static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) +{ + unsigned int t = x*y + 128; + return (stbi_uc) ((t + (t >>8)) >> 8); +} + +static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) +{ + int n, decode_n, is_rgb; + z->s->img_n = 0; // make stbi__cleanup_jpeg safe + + // validate req_comp + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + + // load a jpeg image from whichever source, but leave in YCbCr format + if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } + + // determine actual number of components to generate + n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; + + is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); + + if (z->s->img_n == 3 && n < 3 && !is_rgb) + decode_n = 1; + else + decode_n = z->s->img_n; + + // resample and color-convert + { + int k; + unsigned int i,j; + stbi_uc *output; + stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL }; + + stbi__resample res_comp[4]; + + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + + // allocate line buffer big enough for upsampling off the edges + // with upsample factor of 4 + z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); + if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + r->hs = z->img_h_max / z->img_comp[k].h; + r->vs = z->img_v_max / z->img_comp[k].v; + r->ystep = r->vs >> 1; + r->w_lores = (z->s->img_x + r->hs-1) / r->hs; + r->ypos = 0; + r->line0 = r->line1 = z->img_comp[k].data; + + if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; + else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; + else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; + else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; + else r->resample = stbi__resample_row_generic; + } + + // can't error after this so, this is safe + output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); + if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + // now go ahead and resample + for (j=0; j < z->s->img_y; ++j) { + stbi_uc *out = output + n * z->s->img_x * j; + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + int y_bot = r->ystep >= (r->vs >> 1); + coutput[k] = r->resample(z->img_comp[k].linebuf, + y_bot ? r->line1 : r->line0, + y_bot ? r->line0 : r->line1, + r->w_lores, r->hs); + if (++r->ystep >= r->vs) { + r->ystep = 0; + r->line0 = r->line1; + if (++r->ypos < z->img_comp[k].y) + r->line1 += z->img_comp[k].w2; + } + } + if (n >= 3) { + stbi_uc *y = coutput[0]; + if (z->s->img_n == 3) { + if (is_rgb) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = y[i]; + out[1] = coutput[1][i]; + out[2] = coutput[2][i]; + out[3] = 255; + out += n; + } + } else { + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else if (z->s->img_n == 4) { + if (z->app14_color_transform == 0) { // CMYK + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(coutput[0][i], m); + out[1] = stbi__blinn_8x8(coutput[1][i], m); + out[2] = stbi__blinn_8x8(coutput[2][i], m); + out[3] = 255; + out += n; + } + } else if (z->app14_color_transform == 2) { // YCCK + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(255 - out[0], m); + out[1] = stbi__blinn_8x8(255 - out[1], m); + out[2] = stbi__blinn_8x8(255 - out[2], m); + out += n; + } + } else { // YCbCr + alpha? Ignore the fourth channel for now + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else + for (i=0; i < z->s->img_x; ++i) { + out[0] = out[1] = out[2] = y[i]; + out[3] = 255; // not used if n==3 + out += n; + } + } else { + if (is_rgb) { + if (n == 1) + for (i=0; i < z->s->img_x; ++i) + *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + else { + for (i=0; i < z->s->img_x; ++i, out += 2) { + out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + out[1] = 255; + } + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); + stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); + stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); + out[0] = stbi__compute_y(r, g, b); + out[1] = 255; + out += n; + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); + out[1] = 255; + out += n; + } + } else { + stbi_uc *y = coutput[0]; + if (n == 1) + for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; + else + for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; } + } + } + } + stbi__cleanup_jpeg(z); + *out_x = z->s->img_x; + *out_y = z->s->img_y; + if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output + return output; + } +} + +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + unsigned char* result; + stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); + STBI_NOTUSED(ri); + j->s = s; + stbi__setup_jpeg(j); + result = load_jpeg_image(j, x,y,comp,req_comp); + STBI_FREE(j); + return result; +} + +static int stbi__jpeg_test(stbi__context *s) +{ + int r; + stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); + j->s = s; + stbi__setup_jpeg(j); + r = stbi__decode_jpeg_header(j, STBI__SCAN_type); + stbi__rewind(s); + STBI_FREE(j); + return r; +} + +static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) +{ + if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { + stbi__rewind( j->s ); + return 0; + } + if (x) *x = j->s->img_x; + if (y) *y = j->s->img_y; + if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; + return 1; +} + +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) +{ + int result; + stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); + j->s = s; + result = stbi__jpeg_info_raw(j, x, y, comp); + STBI_FREE(j); + return result; +} +#endif + +// public domain zlib decode v0.2 Sean Barrett 2006-11-18 +// simple implementation +// - all input must be provided in an upfront buffer +// - all output is written to a single output buffer (can malloc/realloc) +// performance +// - fast huffman + +#ifndef STBI_NO_ZLIB + +// fast-way is faster to check than jpeg huffman, but slow way is slower +#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables +#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) + +// zlib-style huffman encoding +// (jpegs packs from left, zlib from right, so can't share code) +typedef struct +{ + stbi__uint16 fast[1 << STBI__ZFAST_BITS]; + stbi__uint16 firstcode[16]; + int maxcode[17]; + stbi__uint16 firstsymbol[16]; + stbi_uc size[288]; + stbi__uint16 value[288]; +} stbi__zhuffman; + +stbi_inline static int stbi__bitreverse16(int n) +{ + n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); + n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); + n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); + n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); + return n; +} + +stbi_inline static int stbi__bit_reverse(int v, int bits) +{ + STBI_ASSERT(bits <= 16); + // to bit reverse n bits, reverse 16 and shift + // e.g. 11 bits, bit reverse and shift away 5 + return stbi__bitreverse16(v) >> (16-bits); +} + +static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) +{ + int i,k=0; + int code, next_code[16], sizes[17]; + + // DEFLATE spec for generating codes + memset(sizes, 0, sizeof(sizes)); + memset(z->fast, 0, sizeof(z->fast)); + for (i=0; i < num; ++i) + ++sizes[sizelist[i]]; + sizes[0] = 0; + for (i=1; i < 16; ++i) + if (sizes[i] > (1 << i)) + return stbi__err("bad sizes", "Corrupt PNG"); + code = 0; + for (i=1; i < 16; ++i) { + next_code[i] = code; + z->firstcode[i] = (stbi__uint16) code; + z->firstsymbol[i] = (stbi__uint16) k; + code = (code + sizes[i]); + if (sizes[i]) + if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); + z->maxcode[i] = code << (16-i); // preshift for inner loop + code <<= 1; + k += sizes[i]; + } + z->maxcode[16] = 0x10000; // sentinel + for (i=0; i < num; ++i) { + int s = sizelist[i]; + if (s) { + int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; + stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); + z->size [c] = (stbi_uc ) s; + z->value[c] = (stbi__uint16) i; + if (s <= STBI__ZFAST_BITS) { + int j = stbi__bit_reverse(next_code[s],s); + while (j < (1 << STBI__ZFAST_BITS)) { + z->fast[j] = fastv; + j += (1 << s); + } + } + ++next_code[s]; + } + } + return 1; +} + +// zlib-from-memory implementation for PNG reading +// because PNG allows splitting the zlib stream arbitrarily, +// and it's annoying structurally to have PNG call ZLIB call PNG, +// we require PNG read all the IDATs and combine them into a single +// memory buffer + +typedef struct +{ + stbi_uc *zbuffer, *zbuffer_end; + int num_bits; + stbi__uint32 code_buffer; + + char *zout; + char *zout_start; + char *zout_end; + int z_expandable; + + stbi__zhuffman z_length, z_distance; +} stbi__zbuf; + +stbi_inline static int stbi__zeof(stbi__zbuf *z) +{ + return (z->zbuffer >= z->zbuffer_end); +} + +stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) +{ + return stbi__zeof(z) ? 0 : *z->zbuffer++; +} + +static void stbi__fill_bits(stbi__zbuf *z) +{ + do { + if (z->code_buffer >= (1U << z->num_bits)) { + z->zbuffer = z->zbuffer_end; /* treat this as EOF so we fail. */ + return; + } + z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; + z->num_bits += 8; + } while (z->num_bits <= 24); +} + +stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) +{ + unsigned int k; + if (z->num_bits < n) stbi__fill_bits(z); + k = z->code_buffer & ((1 << n) - 1); + z->code_buffer >>= n; + z->num_bits -= n; + return k; +} + +static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s,k; + // not resolved by fast table, so compute it the slow way + // use jpeg approach, which requires MSbits at top + k = stbi__bit_reverse(a->code_buffer, 16); + for (s=STBI__ZFAST_BITS+1; ; ++s) + if (k < z->maxcode[s]) + break; + if (s >= 16) return -1; // invalid code! + // code size is s, so: + b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; + if (b >= (int)sizeof (z->size)) return -1; // some data was corrupt somewhere! + if (z->size[b] != s) return -1; // was originally an assert, but report failure instead. + a->code_buffer >>= s; + a->num_bits -= s; + return z->value[b]; +} + +stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s; + if (a->num_bits < 16) { + if (stbi__zeof(a)) { + return -1; /* report error for unexpected end of data. */ + } + stbi__fill_bits(a); + } + b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; + if (b) { + s = b >> 9; + a->code_buffer >>= s; + a->num_bits -= s; + return b & 511; + } + return stbi__zhuffman_decode_slowpath(a, z); +} + +static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes +{ + char *q; + unsigned int cur, limit, old_limit; + z->zout = zout; + if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); + cur = (unsigned int) (z->zout - z->zout_start); + limit = old_limit = (unsigned) (z->zout_end - z->zout_start); + if (UINT_MAX - cur < (unsigned) n) return stbi__err("outofmem", "Out of memory"); + while (cur + n > limit) { + if(limit > UINT_MAX / 2) return stbi__err("outofmem", "Out of memory"); + limit *= 2; + } + q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); + STBI_NOTUSED(old_limit); + if (q == NULL) return stbi__err("outofmem", "Out of memory"); + z->zout_start = q; + z->zout = q + cur; + z->zout_end = q + limit; + return 1; +} + +static const int stbi__zlength_base[31] = { + 3,4,5,6,7,8,9,10,11,13, + 15,17,19,23,27,31,35,43,51,59, + 67,83,99,115,131,163,195,227,258,0,0 }; + +static const int stbi__zlength_extra[31]= +{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; + +static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, +257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; + +static const int stbi__zdist_extra[32] = +{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; + +static int stbi__parse_huffman_block(stbi__zbuf *a) +{ + char *zout = a->zout; + for(;;) { + int z = stbi__zhuffman_decode(a, &a->z_length); + if (z < 256) { + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes + if (zout >= a->zout_end) { + if (!stbi__zexpand(a, zout, 1)) return 0; + zout = a->zout; + } + *zout++ = (char) z; + } else { + stbi_uc *p; + int len,dist; + if (z == 256) { + a->zout = zout; + return 1; + } + z -= 257; + len = stbi__zlength_base[z]; + if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); + z = stbi__zhuffman_decode(a, &a->z_distance); + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); + dist = stbi__zdist_base[z]; + if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); + if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); + if (zout + len > a->zout_end) { + if (!stbi__zexpand(a, zout, len)) return 0; + zout = a->zout; + } + p = (stbi_uc *) (zout - dist); + if (dist == 1) { // run of one byte; common in images. + stbi_uc v = *p; + if (len) { do *zout++ = v; while (--len); } + } else { + if (len) { do *zout++ = *p++; while (--len); } + } + } + } +} + +static int stbi__compute_huffman_codes(stbi__zbuf *a) +{ + static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; + stbi__zhuffman z_codelength; + stbi_uc lencodes[286+32+137];//padding for maximum single op + stbi_uc codelength_sizes[19]; + int i,n; + + int hlit = stbi__zreceive(a,5) + 257; + int hdist = stbi__zreceive(a,5) + 1; + int hclen = stbi__zreceive(a,4) + 4; + int ntot = hlit + hdist; + + memset(codelength_sizes, 0, sizeof(codelength_sizes)); + for (i=0; i < hclen; ++i) { + int s = stbi__zreceive(a,3); + codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; + } + if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; + + n = 0; + while (n < ntot) { + int c = stbi__zhuffman_decode(a, &z_codelength); + if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); + if (c < 16) + lencodes[n++] = (stbi_uc) c; + else { + stbi_uc fill = 0; + if (c == 16) { + c = stbi__zreceive(a,2)+3; + if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); + fill = lencodes[n-1]; + } else if (c == 17) { + c = stbi__zreceive(a,3)+3; + } else if (c == 18) { + c = stbi__zreceive(a,7)+11; + } else { + return stbi__err("bad codelengths", "Corrupt PNG"); + } + if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); + memset(lencodes+n, fill, c); + n += c; + } + } + if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); + if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; + return 1; +} + +static int stbi__parse_uncompressed_block(stbi__zbuf *a) +{ + stbi_uc header[4]; + int len,nlen,k; + if (a->num_bits & 7) + stbi__zreceive(a, a->num_bits & 7); // discard + // drain the bit-packed data into header + k = 0; + while (a->num_bits > 0) { + header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check + a->code_buffer >>= 8; + a->num_bits -= 8; + } + if (a->num_bits < 0) return stbi__err("zlib corrupt","Corrupt PNG"); + // now fill header the normal way + while (k < 4) + header[k++] = stbi__zget8(a); + len = header[1] * 256 + header[0]; + nlen = header[3] * 256 + header[2]; + if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); + if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); + if (a->zout + len > a->zout_end) + if (!stbi__zexpand(a, a->zout, len)) return 0; + memcpy(a->zout, a->zbuffer, len); + a->zbuffer += len; + a->zout += len; + return 1; +} + +static int stbi__parse_zlib_header(stbi__zbuf *a) +{ + int cmf = stbi__zget8(a); + int cm = cmf & 15; + /* int cinfo = cmf >> 4; */ + int flg = stbi__zget8(a); + if (stbi__zeof(a)) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png + if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png + // window = 1 << (8 + cinfo)... but who cares, we fully buffer output + return 1; +} + +static const stbi_uc stbi__zdefault_length[288] = +{ + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 +}; +static const stbi_uc stbi__zdefault_distance[32] = +{ + 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 +}; +/* +Init algorithm: +{ + int i; // use <= to match clearly with spec + for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8; + for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9; + for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7; + for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8; + + for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5; +} +*/ + +static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) +{ + int final, type; + if (parse_header) + if (!stbi__parse_zlib_header(a)) return 0; + a->num_bits = 0; + a->code_buffer = 0; + do { + final = stbi__zreceive(a,1); + type = stbi__zreceive(a,2); + if (type == 0) { + if (!stbi__parse_uncompressed_block(a)) return 0; + } else if (type == 3) { + return 0; + } else { + if (type == 1) { + // use fixed code lengths + if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , 288)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; + } else { + if (!stbi__compute_huffman_codes(a)) return 0; + } + if (!stbi__parse_huffman_block(a)) return 0; + } + } while (!final); + return 1; +} + +static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) +{ + a->zout_start = obuf; + a->zout = obuf; + a->zout_end = obuf + olen; + a->z_expandable = exp; + + return stbi__parse_zlib(a, parse_header); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) +{ + return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) + return (int) (a.zout - a.zout_start); + else + return -1; +} + +STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(16384); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer+len; + if (stbi__do_zlib(&a, p, 16384, 1, 0)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) + return (int) (a.zout - a.zout_start); + else + return -1; +} +#endif + +// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18 +// simple implementation +// - only 8-bit samples +// - no CRC checking +// - allocates lots of intermediate memory +// - avoids problem of streaming data between subsystems +// - avoids explicit window management +// performance +// - uses stb_zlib, a PD zlib implementation with fast huffman decoding + +#ifndef STBI_NO_PNG +typedef struct +{ + stbi__uint32 length; + stbi__uint32 type; +} stbi__pngchunk; + +static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) +{ + stbi__pngchunk c; + c.length = stbi__get32be(s); + c.type = stbi__get32be(s); + return c; +} + +static int stbi__check_png_header(stbi__context *s) +{ + static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; + int i; + for (i=0; i < 8; ++i) + if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); + return 1; +} + +typedef struct +{ + stbi__context *s; + stbi_uc *idata, *expanded, *out; + int depth; +} stbi__png; + + +enum { + STBI__F_none=0, + STBI__F_sub=1, + STBI__F_up=2, + STBI__F_avg=3, + STBI__F_paeth=4, + // synthetic filters used for first scanline to avoid needing a dummy row of 0s + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static stbi_uc first_row_filter[5] = +{ + STBI__F_none, + STBI__F_sub, + STBI__F_none, + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static int stbi__paeth(int a, int b, int c) +{ + int p = a + b - c; + int pa = abs(p-a); + int pb = abs(p-b); + int pc = abs(p-c); + if (pa <= pb && pa <= pc) return a; + if (pb <= pc) return b; + return c; +} + +static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; + +// create the png data from post-deflated data +static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) +{ + int bytes = (depth == 16? 2 : 1); + stbi__context *s = a->s; + stbi__uint32 i,j,stride = x*out_n*bytes; + stbi__uint32 img_len, img_width_bytes; + int k; + int img_n = s->img_n; // copy it into a local for later + + int output_bytes = out_n*bytes; + int filter_bytes = img_n*bytes; + int width = x; + + STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); + a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into + if (!a->out) return stbi__err("outofmem", "Out of memory"); + + if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); + img_width_bytes = (((img_n * x * depth) + 7) >> 3); + img_len = (img_width_bytes + 1) * y; + + // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, + // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), + // so just check for raw_len < img_len always. + if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); + + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *prior; + int filter = *raw++; + + if (filter > 4) + return stbi__err("invalid filter","Corrupt PNG"); + + if (depth < 8) { + if (img_width_bytes > x) return stbi__err("invalid width","Corrupt PNG"); + cur += x*out_n - img_width_bytes; // store output to the rightmost img_len bytes, so we can decode in place + filter_bytes = 1; + width = img_width_bytes; + } + prior = cur - stride; // bugfix: need to compute this after 'cur +=' computation above + + // if first row, use special filter that doesn't sample previous row + if (j == 0) filter = first_row_filter[filter]; + + // handle first byte explicitly + for (k=0; k < filter_bytes; ++k) { + switch (filter) { + case STBI__F_none : cur[k] = raw[k]; break; + case STBI__F_sub : cur[k] = raw[k]; break; + case STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break; + case STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); break; + case STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); break; + case STBI__F_avg_first : cur[k] = raw[k]; break; + case STBI__F_paeth_first: cur[k] = raw[k]; break; + } + } + + if (depth == 8) { + if (img_n != out_n) + cur[img_n] = 255; // first pixel + raw += img_n; + cur += out_n; + prior += out_n; + } else if (depth == 16) { + if (img_n != out_n) { + cur[filter_bytes] = 255; // first pixel top byte + cur[filter_bytes+1] = 255; // first pixel bottom byte + } + raw += filter_bytes; + cur += output_bytes; + prior += output_bytes; + } else { + raw += 1; + cur += 1; + prior += 1; + } + + // this is a little gross, so that we don't switch per-pixel or per-component + if (depth < 8 || img_n == out_n) { + int nk = (width - 1)*filter_bytes; + #define STBI__CASE(f) \ + case f: \ + for (k=0; k < nk; ++k) + switch (filter) { + // "none" filter turns into a memcpy here; make that explicit. + case STBI__F_none: memcpy(cur, raw, nk); break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); } break; + } + #undef STBI__CASE + raw += nk; + } else { + STBI_ASSERT(img_n+1 == out_n); + #define STBI__CASE(f) \ + case f: \ + for (i=x-1; i >= 1; --i, cur[filter_bytes]=255,raw+=filter_bytes,cur+=output_bytes,prior+=output_bytes) \ + for (k=0; k < filter_bytes; ++k) + switch (filter) { + STBI__CASE(STBI__F_none) { cur[k] = raw[k]; } break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k- output_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k- output_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],prior[k],prior[k- output_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k- output_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],0,0)); } break; + } + #undef STBI__CASE + + // the loop above sets the high byte of the pixels' alpha, but for + // 16 bit png files we also need the low byte set. we'll do that here. + if (depth == 16) { + cur = a->out + stride*j; // start at the beginning of the row again + for (i=0; i < x; ++i,cur+=output_bytes) { + cur[filter_bytes+1] = 255; + } + } + } + } + + // we make a separate pass to expand bits to pixels; for performance, + // this could run two scanlines behind the above code, so it won't + // intefere with filtering but will still be in the cache. + if (depth < 8) { + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *in = a->out + stride*j + x*out_n - img_width_bytes; + // unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit + // png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop + stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range + + // note that the final byte might overshoot and write more data than desired. + // we can allocate enough data that this never writes out of memory, but it + // could also overwrite the next scanline. can it overwrite non-empty data + // on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel. + // so we need to explicitly clamp the final ones + + if (depth == 4) { + for (k=x*img_n; k >= 2; k-=2, ++in) { + *cur++ = scale * ((*in >> 4) ); + *cur++ = scale * ((*in ) & 0x0f); + } + if (k > 0) *cur++ = scale * ((*in >> 4) ); + } else if (depth == 2) { + for (k=x*img_n; k >= 4; k-=4, ++in) { + *cur++ = scale * ((*in >> 6) ); + *cur++ = scale * ((*in >> 4) & 0x03); + *cur++ = scale * ((*in >> 2) & 0x03); + *cur++ = scale * ((*in ) & 0x03); + } + if (k > 0) *cur++ = scale * ((*in >> 6) ); + if (k > 1) *cur++ = scale * ((*in >> 4) & 0x03); + if (k > 2) *cur++ = scale * ((*in >> 2) & 0x03); + } else if (depth == 1) { + for (k=x*img_n; k >= 8; k-=8, ++in) { + *cur++ = scale * ((*in >> 7) ); + *cur++ = scale * ((*in >> 6) & 0x01); + *cur++ = scale * ((*in >> 5) & 0x01); + *cur++ = scale * ((*in >> 4) & 0x01); + *cur++ = scale * ((*in >> 3) & 0x01); + *cur++ = scale * ((*in >> 2) & 0x01); + *cur++ = scale * ((*in >> 1) & 0x01); + *cur++ = scale * ((*in ) & 0x01); + } + if (k > 0) *cur++ = scale * ((*in >> 7) ); + if (k > 1) *cur++ = scale * ((*in >> 6) & 0x01); + if (k > 2) *cur++ = scale * ((*in >> 5) & 0x01); + if (k > 3) *cur++ = scale * ((*in >> 4) & 0x01); + if (k > 4) *cur++ = scale * ((*in >> 3) & 0x01); + if (k > 5) *cur++ = scale * ((*in >> 2) & 0x01); + if (k > 6) *cur++ = scale * ((*in >> 1) & 0x01); + } + if (img_n != out_n) { + int q; + // insert alpha = 255 + cur = a->out + stride*j; + if (img_n == 1) { + for (q=x-1; q >= 0; --q) { + cur[q*2+1] = 255; + cur[q*2+0] = cur[q]; + } + } else { + STBI_ASSERT(img_n == 3); + for (q=x-1; q >= 0; --q) { + cur[q*4+3] = 255; + cur[q*4+2] = cur[q*3+2]; + cur[q*4+1] = cur[q*3+1]; + cur[q*4+0] = cur[q*3+0]; + } + } + } + } + } else if (depth == 16) { + // force the image data from big-endian to platform-native. + // this is done in a separate pass due to the decoding relying + // on the data being untouched, but could probably be done + // per-line during decode if care is taken. + stbi_uc *cur = a->out; + stbi__uint16 *cur16 = (stbi__uint16*)cur; + + for(i=0; i < x*y*out_n; ++i,cur16++,cur+=2) { + *cur16 = (cur[0] << 8) | cur[1]; + } + } + + return 1; +} + +static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) +{ + int bytes = (depth == 16 ? 2 : 1); + int out_bytes = out_n * bytes; + stbi_uc *final; + int p; + if (!interlaced) + return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); + + // de-interlacing + final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); + for (p=0; p < 7; ++p) { + int xorig[] = { 0,4,0,2,0,1,0 }; + int yorig[] = { 0,0,4,0,2,0,1 }; + int xspc[] = { 8,8,4,4,2,2,1 }; + int yspc[] = { 8,8,8,4,4,2,2 }; + int i,j,x,y; + // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 + x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; + y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; + if (x && y) { + stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; + if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { + STBI_FREE(final); + return 0; + } + for (j=0; j < y; ++j) { + for (i=0; i < x; ++i) { + int out_y = j*yspc[p]+yorig[p]; + int out_x = i*xspc[p]+xorig[p]; + memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, + a->out + (j*x+i)*out_bytes, out_bytes); + } + } + STBI_FREE(a->out); + image_data += img_len; + image_data_len -= img_len; + } + } + a->out = final; + + return 1; +} + +static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + // compute color-based transparency, assuming we've + // already got 255 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i=0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 255); + p += 2; + } + } else { + for (i=0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi__uint16 *p = (stbi__uint16*) z->out; + + // compute color-based transparency, assuming we've + // already got 65535 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i = 0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 65535); + p += 2; + } + } else { + for (i = 0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) +{ + stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; + stbi_uc *p, *temp_out, *orig = a->out; + + p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); + if (p == NULL) return stbi__err("outofmem", "Out of memory"); + + // between here and free(out) below, exitting would leak + temp_out = p; + + if (pal_img_n == 3) { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p += 3; + } + } else { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p[3] = palette[n+3]; + p += 4; + } + } + STBI_FREE(a->out); + a->out = temp_out; + + STBI_NOTUSED(len); + + return 1; +} + +static int stbi__unpremultiply_on_load = 0; +static int stbi__de_iphone_flag = 0; + +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply; +} + +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag = flag_true_if_should_convert; +} + +static void stbi__de_iphone(stbi__png *z) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + if (s->img_out_n == 3) { // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 3; + } + } else { + STBI_ASSERT(s->img_out_n == 4); + if (stbi__unpremultiply_on_load) { + // convert bgr to rgb and unpremultiply + for (i=0; i < pixel_count; ++i) { + stbi_uc a = p[3]; + stbi_uc t = p[0]; + if (a) { + stbi_uc half = a / 2; + p[0] = (p[2] * 255 + half) / a; + p[1] = (p[1] * 255 + half) / a; + p[2] = ( t * 255 + half) / a; + } else { + p[0] = p[2]; + p[2] = t; + } + p += 4; + } + } else { + // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 4; + } + } + } +} + +#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) + +static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) +{ + stbi_uc palette[1024], pal_img_n=0; + stbi_uc has_trans=0, tc[3]={0}; + stbi__uint16 tc16[3]; + stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; + int first=1,k,interlace=0, color=0, is_iphone=0; + stbi__context *s = z->s; + + z->expanded = NULL; + z->idata = NULL; + z->out = NULL; + + if (!stbi__check_png_header(s)) return 0; + + if (scan == STBI__SCAN_type) return 1; + + for (;;) { + stbi__pngchunk c = stbi__get_chunk_header(s); + switch (c.type) { + case STBI__PNG_TYPE('C','g','B','I'): + is_iphone = 1; + stbi__skip(s, c.length); + break; + case STBI__PNG_TYPE('I','H','D','R'): { + int comp,filter; + if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); + first = 0; + if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); + s->img_x = stbi__get32be(s); + s->img_y = stbi__get32be(s); + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); + color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); + comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); + filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); + interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); + if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); + if (!pal_img_n) { + s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); + if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); + if (scan == STBI__SCAN_header) return 1; + } else { + // if paletted, then pal_n is our final components, and + // img_n is # components to decompress/filter. + s->img_n = 1; + if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); + // if SCAN_header, have to scan to see if we have a tRNS + } + break; + } + + case STBI__PNG_TYPE('P','L','T','E'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); + pal_len = c.length / 3; + if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); + for (i=0; i < pal_len; ++i) { + palette[i*4+0] = stbi__get8(s); + palette[i*4+1] = stbi__get8(s); + palette[i*4+2] = stbi__get8(s); + palette[i*4+3] = 255; + } + break; + } + + case STBI__PNG_TYPE('t','R','N','S'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); + if (pal_img_n) { + if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } + if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); + if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); + pal_img_n = 4; + for (i=0; i < c.length; ++i) + palette[i*4+3] = stbi__get8(s); + } else { + if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); + if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); + has_trans = 1; + if (z->depth == 16) { + for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is + } else { + for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger + } + } + break; + } + + case STBI__PNG_TYPE('I','D','A','T'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); + if (scan == STBI__SCAN_header) { s->img_n = pal_img_n; return 1; } + if ((int)(ioff + c.length) < (int)ioff) return 0; + if (ioff + c.length > idata_limit) { + stbi__uint32 idata_limit_old = idata_limit; + stbi_uc *p; + if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; + while (ioff + c.length > idata_limit) + idata_limit *= 2; + STBI_NOTUSED(idata_limit_old); + p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); + z->idata = p; + } + if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); + ioff += c.length; + break; + } + + case STBI__PNG_TYPE('I','E','N','D'): { + stbi__uint32 raw_len, bpl; + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (scan != STBI__SCAN_load) return 1; + if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); + // initial guess for decoded data size to avoid unnecessary reallocs + bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component + raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; + z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); + if (z->expanded == NULL) return 0; // zlib should set error + STBI_FREE(z->idata); z->idata = NULL; + if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) + s->img_out_n = s->img_n+1; + else + s->img_out_n = s->img_n; + if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; + if (has_trans) { + if (z->depth == 16) { + if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; + } else { + if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; + } + } + if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) + stbi__de_iphone(z); + if (pal_img_n) { + // pal_img_n == 3 or 4 + s->img_n = pal_img_n; // record the actual colors we had + s->img_out_n = pal_img_n; + if (req_comp >= 3) s->img_out_n = req_comp; + if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) + return 0; + } else if (has_trans) { + // non-paletted image with tRNS -> source image has (constant) alpha + ++s->img_n; + } + STBI_FREE(z->expanded); z->expanded = NULL; + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + return 1; + } + + default: + // if critical, fail + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if ((c.type & (1 << 29)) == 0) { + #ifndef STBI_NO_FAILURE_STRINGS + // not threadsafe + static char invalid_chunk[] = "XXXX PNG chunk not known"; + invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); + invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); + invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); + invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); + #endif + return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); + } + stbi__skip(s, c.length); + break; + } + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + } +} + +static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) +{ + void *result=NULL; + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { + if (p->depth <= 8) + ri->bits_per_channel = 8; + else if (p->depth == 16) + ri->bits_per_channel = 16; + else + return stbi__errpuc("bad bits_per_channel", "PNG not supported: unsupported color depth"); + result = p->out; + p->out = NULL; + if (req_comp && req_comp != p->s->img_out_n) { + if (ri->bits_per_channel == 8) + result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + else + result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + p->s->img_out_n = req_comp; + if (result == NULL) return result; + } + *x = p->s->img_x; + *y = p->s->img_y; + if (n) *n = p->s->img_n; + } + STBI_FREE(p->out); p->out = NULL; + STBI_FREE(p->expanded); p->expanded = NULL; + STBI_FREE(p->idata); p->idata = NULL; + + return result; +} + +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi__png p; + p.s = s; + return stbi__do_png(&p, x,y,comp,req_comp, ri); +} + +static int stbi__png_test(stbi__context *s) +{ + int r; + r = stbi__check_png_header(s); + stbi__rewind(s); + return r; +} + +static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) +{ + if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { + stbi__rewind( p->s ); + return 0; + } + if (x) *x = p->s->img_x; + if (y) *y = p->s->img_y; + if (comp) *comp = p->s->img_n; + return 1; +} + +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__png p; + p.s = s; + return stbi__png_info_raw(&p, x, y, comp); +} + +static int stbi__png_is16(stbi__context *s) +{ + stbi__png p; + p.s = s; + if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) + return 0; + if (p.depth != 16) { + stbi__rewind(p.s); + return 0; + } + return 1; +} +#endif + +// Microsoft/Windows BMP image + +#ifndef STBI_NO_BMP +static int stbi__bmp_test_raw(stbi__context *s) +{ + int r; + int sz; + if (stbi__get8(s) != 'B') return 0; + if (stbi__get8(s) != 'M') return 0; + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + stbi__get32le(s); // discard data offset + sz = stbi__get32le(s); + r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); + return r; +} + +static int stbi__bmp_test(stbi__context *s) +{ + int r = stbi__bmp_test_raw(s); + stbi__rewind(s); + return r; +} + + +// returns 0..31 for the highest set bit +static int stbi__high_bit(unsigned int z) +{ + int n=0; + if (z == 0) return -1; + if (z >= 0x10000) { n += 16; z >>= 16; } + if (z >= 0x00100) { n += 8; z >>= 8; } + if (z >= 0x00010) { n += 4; z >>= 4; } + if (z >= 0x00004) { n += 2; z >>= 2; } + if (z >= 0x00002) { n += 1;/* >>= 1;*/ } + return n; +} + +static int stbi__bitcount(unsigned int a) +{ + a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 + a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 + a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits + a = (a + (a >> 8)); // max 16 per 8 bits + a = (a + (a >> 16)); // max 32 per 8 bits + return a & 0xff; +} + +// extract an arbitrarily-aligned N-bit value (N=bits) +// from v, and then make it 8-bits long and fractionally +// extend it to full full range. +static int stbi__shiftsigned(unsigned int v, int shift, int bits) +{ + static unsigned int mul_table[9] = { + 0, + 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, + 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, + }; + static unsigned int shift_table[9] = { + 0, 0,0,1,0,2,4,6,0, + }; + if (shift < 0) + v <<= -shift; + else + v >>= shift; + STBI_ASSERT(v < 256); + v >>= (8-bits); + STBI_ASSERT(bits >= 0 && bits <= 8); + return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; +} + +typedef struct +{ + int bpp, offset, hsz; + unsigned int mr,mg,mb,ma, all_a; + int extra_read; +} stbi__bmp_data; + +static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) +{ + int hsz; + if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + info->offset = stbi__get32le(s); + info->hsz = hsz = stbi__get32le(s); + info->mr = info->mg = info->mb = info->ma = 0; + info->extra_read = 14; + + if (info->offset < 0) return stbi__errpuc("bad BMP", "bad BMP"); + + if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); + if (hsz == 12) { + s->img_x = stbi__get16le(s); + s->img_y = stbi__get16le(s); + } else { + s->img_x = stbi__get32le(s); + s->img_y = stbi__get32le(s); + } + if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); + info->bpp = stbi__get16le(s); + if (hsz != 12) { + int compress = stbi__get32le(s); + if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); + stbi__get32le(s); // discard sizeof + stbi__get32le(s); // discard hres + stbi__get32le(s); // discard vres + stbi__get32le(s); // discard colorsused + stbi__get32le(s); // discard max important + if (hsz == 40 || hsz == 56) { + if (hsz == 56) { + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + } + if (info->bpp == 16 || info->bpp == 32) { + if (compress == 0) { + if (info->bpp == 32) { + info->mr = 0xffu << 16; + info->mg = 0xffu << 8; + info->mb = 0xffu << 0; + info->ma = 0xffu << 24; + info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 + } else { + info->mr = 31u << 10; + info->mg = 31u << 5; + info->mb = 31u << 0; + } + } else if (compress == 3) { + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->extra_read += 12; + // not documented, but generated by photoshop and handled by mspaint + if (info->mr == info->mg && info->mg == info->mb) { + // ?!?!? + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else { + int i; + if (hsz != 108 && hsz != 124) + return stbi__errpuc("bad BMP", "bad BMP"); + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->ma = stbi__get32le(s); + stbi__get32le(s); // discard color space + for (i=0; i < 12; ++i) + stbi__get32le(s); // discard color space parameters + if (hsz == 124) { + stbi__get32le(s); // discard rendering intent + stbi__get32le(s); // discard offset of profile data + stbi__get32le(s); // discard size of profile data + stbi__get32le(s); // discard reserved + } + } + } + return (void *) 1; +} + + +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + unsigned int mr=0,mg=0,mb=0,ma=0, all_a; + stbi_uc pal[256][4]; + int psize=0,i,j,width; + int flip_vertically, pad, target; + stbi__bmp_data info; + STBI_NOTUSED(ri); + + info.all_a = 255; + if (stbi__bmp_parse_header(s, &info) == NULL) + return NULL; // error code already set + + flip_vertically = ((int) s->img_y) > 0; + s->img_y = abs((int) s->img_y); + + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + mr = info.mr; + mg = info.mg; + mb = info.mb; + ma = info.ma; + all_a = info.all_a; + + if (info.hsz == 12) { + if (info.bpp < 24) + psize = (info.offset - info.extra_read - 24) / 3; + } else { + if (info.bpp < 16) + psize = (info.offset - info.extra_read - info.hsz) >> 2; + } + if (psize == 0) { + STBI_ASSERT(info.offset == s->callback_already_read + (int) (s->img_buffer - s->img_buffer_original)); + if (info.offset != s->callback_already_read + (s->img_buffer - s->buffer_start)) { + return stbi__errpuc("bad offset", "Corrupt BMP"); + } + } + + if (info.bpp == 24 && ma == 0xff000000) + s->img_n = 3; + else + s->img_n = ma ? 4 : 3; + if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 + target = req_comp; + else + target = s->img_n; // if they want monochrome, we'll post-convert + + // sanity-check size + if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "Corrupt BMP"); + + out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (info.bpp < 16) { + int z=0; + if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } + for (i=0; i < psize; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + if (info.hsz != 12) stbi__get8(s); + pal[i][3] = 255; + } + stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); + if (info.bpp == 1) width = (s->img_x + 7) >> 3; + else if (info.bpp == 4) width = (s->img_x + 1) >> 1; + else if (info.bpp == 8) width = s->img_x; + else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } + pad = (-width)&3; + if (info.bpp == 1) { + for (j=0; j < (int) s->img_y; ++j) { + int bit_offset = 7, v = stbi__get8(s); + for (i=0; i < (int) s->img_x; ++i) { + int color = (v>>bit_offset)&0x1; + out[z++] = pal[color][0]; + out[z++] = pal[color][1]; + out[z++] = pal[color][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + if((--bit_offset) < 0) { + bit_offset = 7; + v = stbi__get8(s); + } + } + stbi__skip(s, pad); + } + } else { + for (j=0; j < (int) s->img_y; ++j) { + for (i=0; i < (int) s->img_x; i += 2) { + int v=stbi__get8(s),v2=0; + if (info.bpp == 4) { + v2 = v & 15; + v >>= 4; + } + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + v = (info.bpp == 8) ? stbi__get8(s) : v2; + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + } + stbi__skip(s, pad); + } + } + } else { + int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; + int z = 0; + int easy=0; + stbi__skip(s, info.offset - info.extra_read - info.hsz); + if (info.bpp == 24) width = 3 * s->img_x; + else if (info.bpp == 16) width = 2*s->img_x; + else /* bpp = 32 and pad = 0 */ width=0; + pad = (-width) & 3; + if (info.bpp == 24) { + easy = 1; + } else if (info.bpp == 32) { + if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) + easy = 2; + } + if (!easy) { + if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + // right shift amt to put high bit in position #7 + rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); + gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); + bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); + ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); + if (rcount > 8 || gcount > 8 || bcount > 8 || acount > 8) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + } + for (j=0; j < (int) s->img_y; ++j) { + if (easy) { + for (i=0; i < (int) s->img_x; ++i) { + unsigned char a; + out[z+2] = stbi__get8(s); + out[z+1] = stbi__get8(s); + out[z+0] = stbi__get8(s); + z += 3; + a = (easy == 2 ? stbi__get8(s) : 255); + all_a |= a; + if (target == 4) out[z++] = a; + } + } else { + int bpp = info.bpp; + for (i=0; i < (int) s->img_x; ++i) { + stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); + unsigned int a; + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); + a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); + all_a |= a; + if (target == 4) out[z++] = STBI__BYTECAST(a); + } + } + stbi__skip(s, pad); + } + } + + // if alpha channel is all 0s, replace with all 255s + if (target == 4 && all_a == 0) + for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) + out[i] = 255; + + if (flip_vertically) { + stbi_uc t; + for (j=0; j < (int) s->img_y>>1; ++j) { + stbi_uc *p1 = out + j *s->img_x*target; + stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; + for (i=0; i < (int) s->img_x*target; ++i) { + t = p1[i]; p1[i] = p2[i]; p2[i] = t; + } + } + } + + if (req_comp && req_comp != target) { + out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + return out; +} +#endif + +// Targa Truevision - TGA +// by Jonathan Dummer +#ifndef STBI_NO_TGA +// returns STBI_rgb or whatever, 0 on error +static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) +{ + // only RGB or RGBA (incl. 16bit) or grey allowed + if (is_rgb16) *is_rgb16 = 0; + switch(bits_per_pixel) { + case 8: return STBI_grey; + case 16: if(is_grey) return STBI_grey_alpha; + // fallthrough + case 15: if(is_rgb16) *is_rgb16 = 1; + return STBI_rgb; + case 24: // fallthrough + case 32: return bits_per_pixel/8; + default: return 0; + } +} + +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) +{ + int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; + int sz, tga_colormap_type; + stbi__get8(s); // discard Offset + tga_colormap_type = stbi__get8(s); // colormap type + if( tga_colormap_type > 1 ) { + stbi__rewind(s); + return 0; // only RGB or indexed allowed + } + tga_image_type = stbi__get8(s); // image type + if ( tga_colormap_type == 1 ) { // colormapped (paletted) image + if (tga_image_type != 1 && tga_image_type != 9) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip image x and y origin + tga_colormap_bpp = sz; + } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE + if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { + stbi__rewind(s); + return 0; // only RGB or grey allowed, +/- RLE + } + stbi__skip(s,9); // skip colormap specification and image x/y origin + tga_colormap_bpp = 0; + } + tga_w = stbi__get16le(s); + if( tga_w < 1 ) { + stbi__rewind(s); + return 0; // test width + } + tga_h = stbi__get16le(s); + if( tga_h < 1 ) { + stbi__rewind(s); + return 0; // test height + } + tga_bits_per_pixel = stbi__get8(s); // bits per pixel + stbi__get8(s); // ignore alpha bits + if (tga_colormap_bpp != 0) { + if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { + // when using a colormap, tga_bits_per_pixel is the size of the indexes + // I don't think anything but 8 or 16bit indexes makes sense + stbi__rewind(s); + return 0; + } + tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); + } else { + tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); + } + if(!tga_comp) { + stbi__rewind(s); + return 0; + } + if (x) *x = tga_w; + if (y) *y = tga_h; + if (comp) *comp = tga_comp; + return 1; // seems to have passed everything +} + +static int stbi__tga_test(stbi__context *s) +{ + int res = 0; + int sz, tga_color_type; + stbi__get8(s); // discard Offset + tga_color_type = stbi__get8(s); // color type + if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed + sz = stbi__get8(s); // image type + if ( tga_color_type == 1 ) { // colormapped (paletted) image + if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + stbi__skip(s,4); // skip image x and y origin + } else { // "normal" image w/o colormap + if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE + stbi__skip(s,9); // skip colormap specification and image x/y origin + } + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height + sz = stbi__get8(s); // bits per pixel + if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + + res = 1; // if we got this far, everything's good and we can return 1 instead of 0 + +errorEnd: + stbi__rewind(s); + return res; +} + +// read 16bit value and convert to 24bit RGB +static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) +{ + stbi__uint16 px = (stbi__uint16)stbi__get16le(s); + stbi__uint16 fiveBitMask = 31; + // we have 3 channels with 5bits each + int r = (px >> 10) & fiveBitMask; + int g = (px >> 5) & fiveBitMask; + int b = px & fiveBitMask; + // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later + out[0] = (stbi_uc)((r * 255)/31); + out[1] = (stbi_uc)((g * 255)/31); + out[2] = (stbi_uc)((b * 255)/31); + + // some people claim that the most significant bit might be used for alpha + // (possibly if an alpha-bit is set in the "image descriptor byte") + // but that only made 16bit test images completely translucent.. + // so let's treat all 15 and 16bit TGAs as RGB with no alpha. +} + +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + // read in the TGA header stuff + int tga_offset = stbi__get8(s); + int tga_indexed = stbi__get8(s); + int tga_image_type = stbi__get8(s); + int tga_is_RLE = 0; + int tga_palette_start = stbi__get16le(s); + int tga_palette_len = stbi__get16le(s); + int tga_palette_bits = stbi__get8(s); + int tga_x_origin = stbi__get16le(s); + int tga_y_origin = stbi__get16le(s); + int tga_width = stbi__get16le(s); + int tga_height = stbi__get16le(s); + int tga_bits_per_pixel = stbi__get8(s); + int tga_comp, tga_rgb16=0; + int tga_inverted = stbi__get8(s); + // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) + // image data + unsigned char *tga_data; + unsigned char *tga_palette = NULL; + int i, j; + unsigned char raw_data[4] = {0}; + int RLE_count = 0; + int RLE_repeating = 0; + int read_next_pixel = 1; + STBI_NOTUSED(ri); + STBI_NOTUSED(tga_x_origin); // @TODO + STBI_NOTUSED(tga_y_origin); // @TODO + + if (tga_height > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (tga_width > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + // do a tiny bit of precessing + if ( tga_image_type >= 8 ) + { + tga_image_type -= 8; + tga_is_RLE = 1; + } + tga_inverted = 1 - ((tga_inverted >> 5) & 1); + + // If I'm paletted, then I'll use the number of bits from the palette + if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); + else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); + + if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency + return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); + + // tga info + *x = tga_width; + *y = tga_height; + if (comp) *comp = tga_comp; + + if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) + return stbi__errpuc("too large", "Corrupt TGA"); + + tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); + if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); + + // skip to the data's starting position (offset usually = 0) + stbi__skip(s, tga_offset ); + + if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { + for (i=0; i < tga_height; ++i) { + int row = tga_inverted ? tga_height -i - 1 : i; + stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; + stbi__getn(s, tga_row, tga_width * tga_comp); + } + } else { + // do I need to load a palette? + if ( tga_indexed) + { + if (tga_palette_len == 0) { /* you have to have at least one entry! */ + STBI_FREE(tga_data); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + + // any data to skip? (offset usually = 0) + stbi__skip(s, tga_palette_start ); + // load the palette + tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); + if (!tga_palette) { + STBI_FREE(tga_data); + return stbi__errpuc("outofmem", "Out of memory"); + } + if (tga_rgb16) { + stbi_uc *pal_entry = tga_palette; + STBI_ASSERT(tga_comp == STBI_rgb); + for (i=0; i < tga_palette_len; ++i) { + stbi__tga_read_rgb16(s, pal_entry); + pal_entry += tga_comp; + } + } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { + STBI_FREE(tga_data); + STBI_FREE(tga_palette); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + } + // load the data + for (i=0; i < tga_width * tga_height; ++i) + { + // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? + if ( tga_is_RLE ) + { + if ( RLE_count == 0 ) + { + // yep, get the next byte as a RLE command + int RLE_cmd = stbi__get8(s); + RLE_count = 1 + (RLE_cmd & 127); + RLE_repeating = RLE_cmd >> 7; + read_next_pixel = 1; + } else if ( !RLE_repeating ) + { + read_next_pixel = 1; + } + } else + { + read_next_pixel = 1; + } + // OK, if I need to read a pixel, do it now + if ( read_next_pixel ) + { + // load however much data we did have + if ( tga_indexed ) + { + // read in index, then perform the lookup + int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); + if ( pal_idx >= tga_palette_len ) { + // invalid index + pal_idx = 0; + } + pal_idx *= tga_comp; + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = tga_palette[pal_idx+j]; + } + } else if(tga_rgb16) { + STBI_ASSERT(tga_comp == STBI_rgb); + stbi__tga_read_rgb16(s, raw_data); + } else { + // read in the data raw + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = stbi__get8(s); + } + } + // clear the reading flag for the next pixel + read_next_pixel = 0; + } // end of reading a pixel + + // copy data + for (j = 0; j < tga_comp; ++j) + tga_data[i*tga_comp+j] = raw_data[j]; + + // in case we're in RLE mode, keep counting down + --RLE_count; + } + // do I need to invert the image? + if ( tga_inverted ) + { + for (j = 0; j*2 < tga_height; ++j) + { + int index1 = j * tga_width * tga_comp; + int index2 = (tga_height - 1 - j) * tga_width * tga_comp; + for (i = tga_width * tga_comp; i > 0; --i) + { + unsigned char temp = tga_data[index1]; + tga_data[index1] = tga_data[index2]; + tga_data[index2] = temp; + ++index1; + ++index2; + } + } + } + // clear my palette, if I had one + if ( tga_palette != NULL ) + { + STBI_FREE( tga_palette ); + } + } + + // swap RGB - if the source data was RGB16, it already is in the right order + if (tga_comp >= 3 && !tga_rgb16) + { + unsigned char* tga_pixel = tga_data; + for (i=0; i < tga_width * tga_height; ++i) + { + unsigned char temp = tga_pixel[0]; + tga_pixel[0] = tga_pixel[2]; + tga_pixel[2] = temp; + tga_pixel += tga_comp; + } + } + + // convert to target component count + if (req_comp && req_comp != tga_comp) + tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); + + // the things I do to get rid of an error message, and yet keep + // Microsoft's C compilers happy... [8^( + tga_palette_start = tga_palette_len = tga_palette_bits = + tga_x_origin = tga_y_origin = 0; + STBI_NOTUSED(tga_palette_start); + // OK, done + return tga_data; +} +#endif + +// ************************************************************************************************* +// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s) +{ + int r = (stbi__get32be(s) == 0x38425053); + stbi__rewind(s); + return r; +} + +static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) +{ + int count, nleft, len; + + count = 0; + while ((nleft = pixelCount - count) > 0) { + len = stbi__get8(s); + if (len == 128) { + // No-op. + } else if (len < 128) { + // Copy next len+1 bytes literally. + len++; + if (len > nleft) return 0; // corrupt data + count += len; + while (len) { + *p = stbi__get8(s); + p += 4; + len--; + } + } else if (len > 128) { + stbi_uc val; + // Next -len+1 bytes in the dest are replicated from next source byte. + // (Interpret len as a negative 8-bit int.) + len = 257 - len; + if (len > nleft) return 0; // corrupt data + val = stbi__get8(s); + count += len; + while (len) { + *p = val; + p += 4; + len--; + } + } + } + + return 1; +} + +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + int pixelCount; + int channelCount, compression; + int channel, i; + int bitdepth; + int w,h; + stbi_uc *out; + STBI_NOTUSED(ri); + + // Check identifier + if (stbi__get32be(s) != 0x38425053) // "8BPS" + return stbi__errpuc("not PSD", "Corrupt PSD image"); + + // Check file type version. + if (stbi__get16be(s) != 1) + return stbi__errpuc("wrong version", "Unsupported version of PSD image"); + + // Skip 6 reserved bytes. + stbi__skip(s, 6 ); + + // Read the number of channels (R, G, B, A, etc). + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) + return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); + + // Read the rows and columns of the image. + h = stbi__get32be(s); + w = stbi__get32be(s); + + if (h > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (w > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + // Make sure the depth is 8 bits. + bitdepth = stbi__get16be(s); + if (bitdepth != 8 && bitdepth != 16) + return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); + + // Make sure the color mode is RGB. + // Valid options are: + // 0: Bitmap + // 1: Grayscale + // 2: Indexed color + // 3: RGB color + // 4: CMYK color + // 7: Multichannel + // 8: Duotone + // 9: Lab color + if (stbi__get16be(s) != 3) + return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); + + // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) + stbi__skip(s,stbi__get32be(s) ); + + // Skip the image resources. (resolution, pen tool paths, etc) + stbi__skip(s, stbi__get32be(s) ); + + // Skip the reserved data. + stbi__skip(s, stbi__get32be(s) ); + + // Find out if the data is compressed. + // Known values: + // 0: no compression + // 1: RLE compressed + compression = stbi__get16be(s); + if (compression > 1) + return stbi__errpuc("bad compression", "PSD has an unknown compression format"); + + // Check size + if (!stbi__mad3sizes_valid(4, w, h, 0)) + return stbi__errpuc("too large", "Corrupt PSD"); + + // Create the destination image. + + if (!compression && bitdepth == 16 && bpc == 16) { + out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); + ri->bits_per_channel = 16; + } else + out = (stbi_uc *) stbi__malloc(4 * w*h); + + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + pixelCount = w*h; + + // Initialize the data to zero. + //memset( out, 0, pixelCount * 4 ); + + // Finally, the image data. + if (compression) { + // RLE as used by .PSD and .TIFF + // Loop until you get the number of unpacked bytes you are expecting: + // Read the next source byte into n. + // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. + // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. + // Else if n is 128, noop. + // Endloop + + // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, + // which we're going to just skip. + stbi__skip(s, h * channelCount * 2 ); + + // Read the RLE data by channel. + for (channel = 0; channel < 4; channel++) { + stbi_uc *p; + + p = out+channel; + if (channel >= channelCount) { + // Fill this channel with default data. + for (i = 0; i < pixelCount; i++, p += 4) + *p = (channel == 3 ? 255 : 0); + } else { + // Read the RLE data. + if (!stbi__psd_decode_rle(s, p, pixelCount)) { + STBI_FREE(out); + return stbi__errpuc("corrupt", "bad RLE data"); + } + } + } + + } else { + // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) + // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. + + // Read the data by channel. + for (channel = 0; channel < 4; channel++) { + if (channel >= channelCount) { + // Fill this channel with default data. + if (bitdepth == 16 && bpc == 16) { + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + stbi__uint16 val = channel == 3 ? 65535 : 0; + for (i = 0; i < pixelCount; i++, q += 4) + *q = val; + } else { + stbi_uc *p = out+channel; + stbi_uc val = channel == 3 ? 255 : 0; + for (i = 0; i < pixelCount; i++, p += 4) + *p = val; + } + } else { + if (ri->bits_per_channel == 16) { // output bpc + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + for (i = 0; i < pixelCount; i++, q += 4) + *q = (stbi__uint16) stbi__get16be(s); + } else { + stbi_uc *p = out+channel; + if (bitdepth == 16) { // input bpc + for (i = 0; i < pixelCount; i++, p += 4) + *p = (stbi_uc) (stbi__get16be(s) >> 8); + } else { + for (i = 0; i < pixelCount; i++, p += 4) + *p = stbi__get8(s); + } + } + } + } + } + + // remove weird white matte from PSD + if (channelCount >= 4) { + if (ri->bits_per_channel == 16) { + for (i=0; i < w*h; ++i) { + stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; + if (pixel[3] != 0 && pixel[3] != 65535) { + float a = pixel[3] / 65535.0f; + float ra = 1.0f / a; + float inv_a = 65535.0f * (1 - ra); + pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); + pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); + pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); + } + } + } else { + for (i=0; i < w*h; ++i) { + unsigned char *pixel = out + 4*i; + if (pixel[3] != 0 && pixel[3] != 255) { + float a = pixel[3] / 255.0f; + float ra = 1.0f / a; + float inv_a = 255.0f * (1 - ra); + pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); + pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); + pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); + } + } + } + } + + // convert to desired output format + if (req_comp && req_comp != 4) { + if (ri->bits_per_channel == 16) + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); + else + out = stbi__convert_format(out, 4, req_comp, w, h); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + if (comp) *comp = 4; + *y = h; + *x = w; + + return out; +} +#endif + +// ************************************************************************************************* +// Softimage PIC loader +// by Tom Seddon +// +// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format +// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ + +#ifndef STBI_NO_PIC +static int stbi__pic_is4(stbi__context *s,const char *str) +{ + int i; + for (i=0; i<4; ++i) + if (stbi__get8(s) != (stbi_uc)str[i]) + return 0; + + return 1; +} + +static int stbi__pic_test_core(stbi__context *s) +{ + int i; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) + return 0; + + for(i=0;i<84;++i) + stbi__get8(s); + + if (!stbi__pic_is4(s,"PICT")) + return 0; + + return 1; +} + +typedef struct +{ + stbi_uc size,type,channel; +} stbi__pic_packet; + +static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) +{ + int mask=0x80, i; + + for (i=0; i<4; ++i, mask>>=1) { + if (channel & mask) { + if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); + dest[i]=stbi__get8(s); + } + } + + return dest; +} + +static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) +{ + int mask=0x80,i; + + for (i=0;i<4; ++i, mask>>=1) + if (channel&mask) + dest[i]=src[i]; +} + +static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) +{ + int act_comp=0,num_packets=0,y,chained; + stbi__pic_packet packets[10]; + + // this will (should...) cater for even some bizarre stuff like having data + // for the same channel in multiple packets. + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return stbi__errpuc("bad format","too many packets"); + + packet = &packets[num_packets++]; + + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + + act_comp |= packet->channel; + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); + if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? + + for(y=0; y<height; ++y) { + int packet_idx; + + for(packet_idx=0; packet_idx < num_packets; ++packet_idx) { + stbi__pic_packet *packet = &packets[packet_idx]; + stbi_uc *dest = result+y*width*4; + + switch (packet->type) { + default: + return stbi__errpuc("bad format","packet has bad compression type"); + + case 0: {//uncompressed + int x; + + for(x=0;x<width;++x, dest+=4) + if (!stbi__readval(s,packet->channel,dest)) + return 0; + break; + } + + case 1://Pure RLE + { + int left=width, i; + + while (left>0) { + stbi_uc count,value[4]; + + count=stbi__get8(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); + + if (count > left) + count = (stbi_uc) left; + + if (!stbi__readval(s,packet->channel,value)) return 0; + + for(i=0; i<count; ++i,dest+=4) + stbi__copyval(packet->channel,dest,value); + left -= count; + } + } + break; + + case 2: {//Mixed RLE + int left=width; + while (left>0) { + int count = stbi__get8(s), i; + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); + + if (count >= 128) { // Repeated + stbi_uc value[4]; + + if (count==128) + count = stbi__get16be(s); + else + count -= 127; + if (count > left) + return stbi__errpuc("bad file","scanline overrun"); + + if (!stbi__readval(s,packet->channel,value)) + return 0; + + for(i=0;i<count;++i, dest += 4) + stbi__copyval(packet->channel,dest,value); + } else { // Raw + ++count; + if (count>left) return stbi__errpuc("bad file","scanline overrun"); + + for(i=0;i<count;++i, dest+=4) + if (!stbi__readval(s,packet->channel,dest)) + return 0; + } + left-=count; + } + break; + } + } + } + } + + return result; +} + +static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) +{ + stbi_uc *result; + int i, x,y, internal_comp; + STBI_NOTUSED(ri); + + if (!comp) comp = &internal_comp; + + for (i=0; i<92; ++i) + stbi__get8(s); + + x = stbi__get16be(s); + y = stbi__get16be(s); + + if (y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); + if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); + + stbi__get32be(s); //skip `ratio' + stbi__get16be(s); //skip `fields' + stbi__get16be(s); //skip `pad' + + // intermediate buffer is RGBA + result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); + memset(result, 0xff, x*y*4); + + if (!stbi__pic_load_core(s,x,y,comp, result)) { + STBI_FREE(result); + result=0; + } + *px = x; + *py = y; + if (req_comp == 0) req_comp = *comp; + result=stbi__convert_format(result,4,req_comp,x,y); + + return result; +} + +static int stbi__pic_test(stbi__context *s) +{ + int r = stbi__pic_test_core(s); + stbi__rewind(s); + return r; +} +#endif + +// ************************************************************************************************* +// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb + +#ifndef STBI_NO_GIF +typedef struct +{ + stbi__int16 prefix; + stbi_uc first; + stbi_uc suffix; +} stbi__gif_lzw; + +typedef struct +{ + int w,h; + stbi_uc *out; // output buffer (always 4 components) + stbi_uc *background; // The current "background" as far as a gif is concerned + stbi_uc *history; + int flags, bgindex, ratio, transparent, eflags; + stbi_uc pal[256][4]; + stbi_uc lpal[256][4]; + stbi__gif_lzw codes[8192]; + stbi_uc *color_table; + int parse, step; + int lflags; + int start_x, start_y; + int max_x, max_y; + int cur_x, cur_y; + int line_size; + int delay; +} stbi__gif; + +static int stbi__gif_test_raw(stbi__context *s) +{ + int sz; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; + sz = stbi__get8(s); + if (sz != '9' && sz != '7') return 0; + if (stbi__get8(s) != 'a') return 0; + return 1; +} + +static int stbi__gif_test(stbi__context *s) +{ + int r = stbi__gif_test_raw(s); + stbi__rewind(s); + return r; +} + +static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) +{ + int i; + for (i=0; i < num_entries; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + pal[i][3] = transp == i ? 0 : 255; + } +} + +static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) +{ + stbi_uc version; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') + return stbi__err("not GIF", "Corrupt GIF"); + + version = stbi__get8(s); + if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); + if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); + + stbi__g_failure_reason = ""; + g->w = stbi__get16le(s); + g->h = stbi__get16le(s); + g->flags = stbi__get8(s); + g->bgindex = stbi__get8(s); + g->ratio = stbi__get8(s); + g->transparent = -1; + + if (g->w > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (g->h > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + + if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments + + if (is_info) return 1; + + if (g->flags & 0x80) + stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); + + return 1; +} + +static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); + if (!stbi__gif_header(s, g, comp, 1)) { + STBI_FREE(g); + stbi__rewind( s ); + return 0; + } + if (x) *x = g->w; + if (y) *y = g->h; + STBI_FREE(g); + return 1; +} + +static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) +{ + stbi_uc *p, *c; + int idx; + + // recurse to decode the prefixes, since the linked-list is backwards, + // and working backwards through an interleaved image would be nasty + if (g->codes[code].prefix >= 0) + stbi__out_gif_code(g, g->codes[code].prefix); + + if (g->cur_y >= g->max_y) return; + + idx = g->cur_x + g->cur_y; + p = &g->out[idx]; + g->history[idx / 4] = 1; + + c = &g->color_table[g->codes[code].suffix * 4]; + if (c[3] > 128) { // don't render transparent pixels; + p[0] = c[2]; + p[1] = c[1]; + p[2] = c[0]; + p[3] = c[3]; + } + g->cur_x += 4; + + if (g->cur_x >= g->max_x) { + g->cur_x = g->start_x; + g->cur_y += g->step; + + while (g->cur_y >= g->max_y && g->parse > 0) { + g->step = (1 << g->parse) * g->line_size; + g->cur_y = g->start_y + (g->step >> 1); + --g->parse; + } + } +} + +static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) +{ + stbi_uc lzw_cs; + stbi__int32 len, init_code; + stbi__uint32 first; + stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; + stbi__gif_lzw *p; + + lzw_cs = stbi__get8(s); + if (lzw_cs > 12) return NULL; + clear = 1 << lzw_cs; + first = 1; + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + bits = 0; + valid_bits = 0; + for (init_code = 0; init_code < clear; init_code++) { + g->codes[init_code].prefix = -1; + g->codes[init_code].first = (stbi_uc) init_code; + g->codes[init_code].suffix = (stbi_uc) init_code; + } + + // support no starting clear code + avail = clear+2; + oldcode = -1; + + len = 0; + for(;;) { + if (valid_bits < codesize) { + if (len == 0) { + len = stbi__get8(s); // start new block + if (len == 0) + return g->out; + } + --len; + bits |= (stbi__int32) stbi__get8(s) << valid_bits; + valid_bits += 8; + } else { + stbi__int32 code = bits & codemask; + bits >>= codesize; + valid_bits -= codesize; + // @OPTIMIZE: is there some way we can accelerate the non-clear path? + if (code == clear) { // clear code + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + avail = clear + 2; + oldcode = -1; + first = 0; + } else if (code == clear + 1) { // end of stream code + stbi__skip(s, len); + while ((len = stbi__get8(s)) > 0) + stbi__skip(s,len); + return g->out; + } else if (code <= avail) { + if (first) { + return stbi__errpuc("no clear code", "Corrupt GIF"); + } + + if (oldcode >= 0) { + p = &g->codes[avail++]; + if (avail > 8192) { + return stbi__errpuc("too many codes", "Corrupt GIF"); + } + + p->prefix = (stbi__int16) oldcode; + p->first = g->codes[oldcode].first; + p->suffix = (code == avail) ? p->first : g->codes[code].first; + } else if (code == avail) + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + + stbi__out_gif_code(g, (stbi__uint16) code); + + if ((avail & codemask) == 0 && avail <= 0x0FFF) { + codesize++; + codemask = (1 << codesize) - 1; + } + + oldcode = code; + } else { + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + } + } + } +} + +// this function is designed to support animated gifs, although stb_image doesn't support it +// two back is the image from two frames ago, used for a very specific disposal format +static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) +{ + int dispose; + int first_frame; + int pi; + int pcount; + STBI_NOTUSED(req_comp); + + // on first frame, any non-written pixels get the background colour (non-transparent) + first_frame = 0; + if (g->out == 0) { + if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header + if (!stbi__mad3sizes_valid(4, g->w, g->h, 0)) + return stbi__errpuc("too large", "GIF image is too large"); + pcount = g->w * g->h; + g->out = (stbi_uc *) stbi__malloc(4 * pcount); + g->background = (stbi_uc *) stbi__malloc(4 * pcount); + g->history = (stbi_uc *) stbi__malloc(pcount); + if (!g->out || !g->background || !g->history) + return stbi__errpuc("outofmem", "Out of memory"); + + // image is treated as "transparent" at the start - ie, nothing overwrites the current background; + // background colour is only used for pixels that are not rendered first frame, after that "background" + // color refers to the color that was there the previous frame. + memset(g->out, 0x00, 4 * pcount); + memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) + memset(g->history, 0x00, pcount); // pixels that were affected previous frame + first_frame = 1; + } else { + // second frame - how do we dispose of the previous one? + dispose = (g->eflags & 0x1C) >> 2; + pcount = g->w * g->h; + + if ((dispose == 3) && (two_back == 0)) { + dispose = 2; // if I don't have an image to revert back to, default to the old background + } + + if (dispose == 3) { // use previous graphic + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); + } + } + } else if (dispose == 2) { + // restore what was changed last frame to background before that frame; + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); + } + } + } else { + // This is a non-disposal case eithe way, so just + // leave the pixels as is, and they will become the new background + // 1: do not dispose + // 0: not specified. + } + + // background is what out is after the undoing of the previou frame; + memcpy( g->background, g->out, 4 * g->w * g->h ); + } + + // clear my history; + memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame + + for (;;) { + int tag = stbi__get8(s); + switch (tag) { + case 0x2C: /* Image Descriptor */ + { + stbi__int32 x, y, w, h; + stbi_uc *o; + + x = stbi__get16le(s); + y = stbi__get16le(s); + w = stbi__get16le(s); + h = stbi__get16le(s); + if (((x + w) > (g->w)) || ((y + h) > (g->h))) + return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); + + g->line_size = g->w * 4; + g->start_x = x * 4; + g->start_y = y * g->line_size; + g->max_x = g->start_x + w * 4; + g->max_y = g->start_y + h * g->line_size; + g->cur_x = g->start_x; + g->cur_y = g->start_y; + + // if the width of the specified rectangle is 0, that means + // we may not see *any* pixels or the image is malformed; + // to make sure this is caught, move the current y down to + // max_y (which is what out_gif_code checks). + if (w == 0) + g->cur_y = g->max_y; + + g->lflags = stbi__get8(s); + + if (g->lflags & 0x40) { + g->step = 8 * g->line_size; // first interlaced spacing + g->parse = 3; + } else { + g->step = g->line_size; + g->parse = 0; + } + + if (g->lflags & 0x80) { + stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); + g->color_table = (stbi_uc *) g->lpal; + } else if (g->flags & 0x80) { + g->color_table = (stbi_uc *) g->pal; + } else + return stbi__errpuc("missing color table", "Corrupt GIF"); + + o = stbi__process_gif_raster(s, g); + if (!o) return NULL; + + // if this was the first frame, + pcount = g->w * g->h; + if (first_frame && (g->bgindex > 0)) { + // if first frame, any pixel not drawn to gets the background color + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi] == 0) { + g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; + memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); + } + } + } + + return o; + } + + case 0x21: // Comment Extension. + { + int len; + int ext = stbi__get8(s); + if (ext == 0xF9) { // Graphic Control Extension. + len = stbi__get8(s); + if (len == 4) { + g->eflags = stbi__get8(s); + g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. + + // unset old transparent + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 255; + } + if (g->eflags & 0x01) { + g->transparent = stbi__get8(s); + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 0; + } + } else { + // don't need transparent + stbi__skip(s, 1); + g->transparent = -1; + } + } else { + stbi__skip(s, len); + break; + } + } + while ((len = stbi__get8(s)) != 0) { + stbi__skip(s, len); + } + break; + } + + case 0x3B: // gif stream termination code + return (stbi_uc *) s; // using '1' causes warning on some compilers + + default: + return stbi__errpuc("unknown code", "Corrupt GIF"); + } + } +} + +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + if (stbi__gif_test(s)) { + int layers = 0; + stbi_uc *u = 0; + stbi_uc *out = 0; + stbi_uc *two_back = 0; + stbi__gif g; + int stride; + int out_size = 0; + int delays_size = 0; + memset(&g, 0, sizeof(g)); + if (delays) { + *delays = 0; + } + + do { + u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + + if (u) { + *x = g.w; + *y = g.h; + ++layers; + stride = g.w * g.h * 4; + + if (out) { + void *tmp = (stbi_uc*) STBI_REALLOC_SIZED( out, out_size, layers * stride ); + if (NULL == tmp) { + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + return stbi__errpuc("outofmem", "Out of memory"); + } + else { + out = (stbi_uc*) tmp; + out_size = layers * stride; + } + + if (delays) { + *delays = (int*) STBI_REALLOC_SIZED( *delays, delays_size, sizeof(int) * layers ); + delays_size = layers * sizeof(int); + } + } else { + out = (stbi_uc*)stbi__malloc( layers * stride ); + out_size = layers * stride; + if (delays) { + *delays = (int*) stbi__malloc( layers * sizeof(int) ); + delays_size = layers * sizeof(int); + } + } + memcpy( out + ((layers - 1) * stride), u, stride ); + if (layers >= 2) { + two_back = out - 2 * stride; + } + + if (delays) { + (*delays)[layers - 1U] = g.delay; + } + } + } while (u != 0); + + // free temp buffer; + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + + // do the final conversion after loading everything; + if (req_comp && req_comp != 4) + out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); + + *z = layers; + return out; + } else { + return stbi__errpuc("not GIF", "Image was not as a gif type."); + } +} + +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *u = 0; + stbi__gif g; + memset(&g, 0, sizeof(g)); + STBI_NOTUSED(ri); + + u = stbi__gif_load_next(s, &g, comp, req_comp, 0); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + if (u) { + *x = g.w; + *y = g.h; + + // moved conversion to after successful load so that the same + // can be done for multiple frames. + if (req_comp && req_comp != 4) + u = stbi__convert_format(u, 4, req_comp, g.w, g.h); + } else if (g.out) { + // if there was an error and we allocated an image buffer, free it! + STBI_FREE(g.out); + } + + // free buffers needed for multiple frame loading; + STBI_FREE(g.history); + STBI_FREE(g.background); + + return u; +} + +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) +{ + return stbi__gif_info_raw(s,x,y,comp); +} +#endif + +// ************************************************************************************************* +// Radiance RGBE HDR loader +// originally by Nicolas Schulz +#ifndef STBI_NO_HDR +static int stbi__hdr_test_core(stbi__context *s, const char *signature) +{ + int i; + for (i=0; signature[i]; ++i) + if (stbi__get8(s) != signature[i]) + return 0; + stbi__rewind(s); + return 1; +} + +static int stbi__hdr_test(stbi__context* s) +{ + int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); + stbi__rewind(s); + if(!r) { + r = stbi__hdr_test_core(s, "#?RGBE\n"); + stbi__rewind(s); + } + return r; +} + +#define STBI__HDR_BUFLEN 1024 +static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) +{ + int len=0; + char c = '\0'; + + c = (char) stbi__get8(z); + + while (!stbi__at_eof(z) && c != '\n') { + buffer[len++] = c; + if (len == STBI__HDR_BUFLEN-1) { + // flush to end of line + while (!stbi__at_eof(z) && stbi__get8(z) != '\n') + ; + break; + } + c = (char) stbi__get8(z); + } + + buffer[len] = 0; + return buffer; +} + +static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) +{ + if ( input[3] != 0 ) { + float f1; + // Exponent + f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); + if (req_comp <= 2) + output[0] = (input[0] + input[1] + input[2]) * f1 / 3; + else { + output[0] = input[0] * f1; + output[1] = input[1] * f1; + output[2] = input[2] * f1; + } + if (req_comp == 2) output[1] = 1; + if (req_comp == 4) output[3] = 1; + } else { + switch (req_comp) { + case 4: output[3] = 1; /* fallthrough */ + case 3: output[0] = output[1] = output[2] = 0; + break; + case 2: output[1] = 1; /* fallthrough */ + case 1: output[0] = 0; + break; + } + } +} + +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int width, height; + stbi_uc *scanline; + float *hdr_data; + int len; + unsigned char count, value; + int i, j, k, c1,c2, z; + const char *headerToken; + STBI_NOTUSED(ri); + + // Check identifier + headerToken = stbi__hdr_gettoken(s,buffer); + if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) + return stbi__errpf("not HDR", "Corrupt HDR image"); + + // Parse header + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); + + // Parse width and height + // can't use sscanf() if we're not using stdio! + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + height = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + width = (int) strtol(token, NULL, 10); + + if (height > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + if (width > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + + *x = width; + *y = height; + + if (comp) *comp = 3; + if (req_comp == 0) req_comp = 3; + + if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) + return stbi__errpf("too large", "HDR image is too large"); + + // Read data + hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); + if (!hdr_data) + return stbi__errpf("outofmem", "Out of memory"); + + // Load image data + // image data is stored as some number of sca + if ( width < 8 || width >= 32768) { + // Read flat data + for (j=0; j < height; ++j) { + for (i=0; i < width; ++i) { + stbi_uc rgbe[4]; + main_decode_loop: + stbi__getn(s, rgbe, 4); + stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); + } + } + } else { + // Read RLE-encoded data + scanline = NULL; + + for (j = 0; j < height; ++j) { + c1 = stbi__get8(s); + c2 = stbi__get8(s); + len = stbi__get8(s); + if (c1 != 2 || c2 != 2 || (len & 0x80)) { + // not run-length encoded, so we have to actually use THIS data as a decoded + // pixel (note this can't be a valid pixel--one of RGB must be >= 128) + stbi_uc rgbe[4]; + rgbe[0] = (stbi_uc) c1; + rgbe[1] = (stbi_uc) c2; + rgbe[2] = (stbi_uc) len; + rgbe[3] = (stbi_uc) stbi__get8(s); + stbi__hdr_convert(hdr_data, rgbe, req_comp); + i = 1; + j = 0; + STBI_FREE(scanline); + goto main_decode_loop; // yes, this makes no sense + } + len <<= 8; + len |= stbi__get8(s); + if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } + if (scanline == NULL) { + scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); + if (!scanline) { + STBI_FREE(hdr_data); + return stbi__errpf("outofmem", "Out of memory"); + } + } + + for (k = 0; k < 4; ++k) { + int nleft; + i = 0; + while ((nleft = width - i) > 0) { + count = stbi__get8(s); + if (count > 128) { + // Run + value = stbi__get8(s); + count -= 128; + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = value; + } else { + // Dump + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = stbi__get8(s); + } + } + } + for (i=0; i < width; ++i) + stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); + } + if (scanline) + STBI_FREE(scanline); + } + + return hdr_data; +} + +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int dummy; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (stbi__hdr_test(s) == 0) { + stbi__rewind( s ); + return 0; + } + + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) { + stbi__rewind( s ); + return 0; + } + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *y = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *x = (int) strtol(token, NULL, 10); + *comp = 3; + return 1; +} +#endif // STBI_NO_HDR + +#ifndef STBI_NO_BMP +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) +{ + void *p; + stbi__bmp_data info; + + info.all_a = 255; + p = stbi__bmp_parse_header(s, &info); + stbi__rewind( s ); + if (p == NULL) + return 0; + if (x) *x = s->img_x; + if (y) *y = s->img_y; + if (comp) { + if (info.bpp == 24 && info.ma == 0xff000000) + *comp = 3; + else + *comp = info.ma ? 4 : 3; + } + return 1; +} +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) +{ + int channelCount, dummy, depth; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + *y = stbi__get32be(s); + *x = stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 8 && depth != 16) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 3) { + stbi__rewind( s ); + return 0; + } + *comp = 4; + return 1; +} + +static int stbi__psd_is16(stbi__context *s) +{ + int channelCount, depth; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + (void) stbi__get32be(s); + (void) stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 16) { + stbi__rewind( s ); + return 0; + } + return 1; +} +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) +{ + int act_comp=0,num_packets=0,chained,dummy; + stbi__pic_packet packets[10]; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { + stbi__rewind(s); + return 0; + } + + stbi__skip(s, 88); + + *x = stbi__get16be(s); + *y = stbi__get16be(s); + if (stbi__at_eof(s)) { + stbi__rewind( s); + return 0; + } + if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { + stbi__rewind( s ); + return 0; + } + + stbi__skip(s, 8); + + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return 0; + + packet = &packets[num_packets++]; + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + act_comp |= packet->channel; + + if (stbi__at_eof(s)) { + stbi__rewind( s ); + return 0; + } + if (packet->size != 8) { + stbi__rewind( s ); + return 0; + } + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); + + return 1; +} +#endif + +// ************************************************************************************************* +// Portable Gray Map and Portable Pixel Map loader +// by Ken Miller +// +// PGM: http://netpbm.sourceforge.net/doc/pgm.html +// PPM: http://netpbm.sourceforge.net/doc/ppm.html +// +// Known limitations: +// Does not support comments in the header section +// Does not support ASCII image data (formats P2 and P3) +// Does not support 16-bit-per-channel + +#ifndef STBI_NO_PNM + +static int stbi__pnm_test(stbi__context *s) +{ + char p, t; + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind( s ); + return 0; + } + return 1; +} + +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + STBI_NOTUSED(ri); + + if (!stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n)) + return 0; + + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + + if (!stbi__mad3sizes_valid(s->img_n, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "PNM too large"); + + out = (stbi_uc *) stbi__malloc_mad3(s->img_n, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + stbi__getn(s, out, s->img_n * s->img_x * s->img_y); + + if (req_comp && req_comp != s->img_n) { + out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + return out; +} + +static int stbi__pnm_isspace(char c) +{ + return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; +} + +static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) +{ + for (;;) { + while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) + *c = (char) stbi__get8(s); + + if (stbi__at_eof(s) || *c != '#') + break; + + while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) + *c = (char) stbi__get8(s); + } +} + +static int stbi__pnm_isdigit(char c) +{ + return c >= '0' && c <= '9'; +} + +static int stbi__pnm_getinteger(stbi__context *s, char *c) +{ + int value = 0; + + while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { + value = value*10 + (*c - '0'); + *c = (char) stbi__get8(s); + } + + return value; +} + +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) +{ + int maxv, dummy; + char c, p, t; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + stbi__rewind(s); + + // Get identifier + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind(s); + return 0; + } + + *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm + + c = (char) stbi__get8(s); + stbi__pnm_skip_whitespace(s, &c); + + *x = stbi__pnm_getinteger(s, &c); // read width + stbi__pnm_skip_whitespace(s, &c); + + *y = stbi__pnm_getinteger(s, &c); // read height + stbi__pnm_skip_whitespace(s, &c); + + maxv = stbi__pnm_getinteger(s, &c); // read max value + + if (maxv > 255) + return stbi__err("max value > 255", "PPM image not 8-bit"); + else + return 1; +} +#endif + +static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) +{ + #ifndef STBI_NO_JPEG + if (stbi__jpeg_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNG + if (stbi__png_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_GIF + if (stbi__gif_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_BMP + if (stbi__bmp_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PIC + if (stbi__pic_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNM + if (stbi__pnm_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_info(s, x, y, comp)) return 1; + #endif + + // test tga last because it's a crappy test! + #ifndef STBI_NO_TGA + if (stbi__tga_info(s, x, y, comp)) + return 1; + #endif + return stbi__err("unknown image type", "Image not of any known type, or corrupt"); +} + +static int stbi__is_16_main(stbi__context *s) +{ + #ifndef STBI_NO_PNG + if (stbi__png_is16(s)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_is16(s)) return 1; + #endif + + return 0; +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_info_from_file(f, x, y, comp); + fclose(f); + return result; +} + +STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__info_main(&s,x,y,comp); + fseek(f,pos,SEEK_SET); + return r; +} + +STBIDEF int stbi_is_16_bit(char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_is_16_bit_from_file(f); + fclose(f); + return result; +} + +STBIDEF int stbi_is_16_bit_from_file(FILE *f) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__is_16_main(&s); + fseek(f,pos,SEEK_SET); + return r; +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__is_16_main(&s); +} + +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__is_16_main(&s); +} + +#endif // STB_IMAGE_IMPLEMENTATION + +/* + revision history: + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug + 1-bit BMP + *_is_16_bit api + avoid warnings + 2.16 (2017-07-23) all functions have 16-bit variants; + STBI_NO_STDIO works again; + compilation fixes; + fix rounding in unpremultiply; + optimize vertical flip; + disable raw_len validation; + documentation fixes + 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; + warning fixes; disable run-time SSE detection on gcc; + uniform handling of optional "return" values; + thread-safe initialization of zlib tables + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) allocate large structures on the stack + remove white matting for transparent PSD + fix reported channel count for PNG & BMP + re-enable SSE2 in non-gcc 64-bit + support RGB-formatted JPEG + read 16-bit PNGs (only as 8-bit) + 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED + 2.09 (2016-01-16) allow comments in PNM files + 16-bit-per-pixel TGA (not bit-per-component) + info() for TGA could break due to .hdr handling + info() for BMP to shares code instead of sloppy parse + can use STBI_REALLOC_SIZED if allocator doesn't support realloc + code cleanup + 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA + 2.07 (2015-09-13) fix compiler warnings + partial animated GIF support + limited 16-bpc PSD support + #ifdef unused functions + bug with < 92 byte PIC,PNM,HDR,TGA + 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value + 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning + 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit + 2.03 (2015-04-12) extra corruption checking (mmozeiko) + stbi_set_flip_vertically_on_load (nguillemot) + fix NEON support; fix mingw support + 2.02 (2015-01-19) fix incorrect assert, fix warning + 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 + 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG + 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) + progressive JPEG (stb) + PGM/PPM support (Ken Miller) + STBI_MALLOC,STBI_REALLOC,STBI_FREE + GIF bugfix -- seemingly never worked + STBI_NO_*, STBI_ONLY_* + 1.48 (2014-12-14) fix incorrectly-named assert() + 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) + optimize PNG (ryg) + fix bug in interlaced PNG with user-specified channel count (stb) + 1.46 (2014-08-26) + fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG + 1.45 (2014-08-16) + fix MSVC-ARM internal compiler error by wrapping malloc + 1.44 (2014-08-07) + various warning fixes from Ronny Chevalier + 1.43 (2014-07-15) + fix MSVC-only compiler problem in code changed in 1.42 + 1.42 (2014-07-09) + don't define _CRT_SECURE_NO_WARNINGS (affects user code) + fixes to stbi__cleanup_jpeg path + added STBI_ASSERT to avoid requiring assert.h + 1.41 (2014-06-25) + fix search&replace from 1.36 that messed up comments/error messages + 1.40 (2014-06-22) + fix gcc struct-initialization warning + 1.39 (2014-06-15) + fix to TGA optimization when req_comp != number of components in TGA; + fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) + add support for BMP version 5 (more ignored fields) + 1.38 (2014-06-06) + suppress MSVC warnings on integer casts truncating values + fix accidental rename of 'skip' field of I/O + 1.37 (2014-06-04) + remove duplicate typedef + 1.36 (2014-06-03) + convert to header file single-file library + if de-iphone isn't set, load iphone images color-swapped instead of returning NULL + 1.35 (2014-05-27) + various warnings + fix broken STBI_SIMD path + fix bug where stbi_load_from_file no longer left file pointer in correct place + fix broken non-easy path for 32-bit BMP (possibly never used) + TGA optimization by Arseny Kapoulkine + 1.34 (unknown) + use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case + 1.33 (2011-07-14) + make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements + 1.32 (2011-07-13) + support for "info" function for all supported filetypes (SpartanJ) + 1.31 (2011-06-20) + a few more leak fixes, bug in PNG handling (SpartanJ) + 1.30 (2011-06-11) + added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) + removed deprecated format-specific test/load functions + removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway + error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) + fix inefficiency in decoding 32-bit BMP (David Woo) + 1.29 (2010-08-16) + various warning fixes from Aurelien Pocheville + 1.28 (2010-08-01) + fix bug in GIF palette transparency (SpartanJ) + 1.27 (2010-08-01) + cast-to-stbi_uc to fix warnings + 1.26 (2010-07-24) + fix bug in file buffering for PNG reported by SpartanJ + 1.25 (2010-07-17) + refix trans_data warning (Won Chun) + 1.24 (2010-07-12) + perf improvements reading from files on platforms with lock-heavy fgetc() + minor perf improvements for jpeg + deprecated type-specific functions so we'll get feedback if they're needed + attempt to fix trans_data warning (Won Chun) + 1.23 fixed bug in iPhone support + 1.22 (2010-07-10) + removed image *writing* support + stbi_info support from Jetro Lauha + GIF support from Jean-Marc Lienher + iPhone PNG-extensions from James Brown + warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) + 1.21 fix use of 'stbi_uc' in header (reported by jon blow) + 1.20 added support for Softimage PIC, by Tom Seddon + 1.19 bug in interlaced PNG corruption check (found by ryg) + 1.18 (2008-08-02) + fix a threading bug (local mutable static) + 1.17 support interlaced PNG + 1.16 major bugfix - stbi__convert_format converted one too many pixels + 1.15 initialize some fields for thread safety + 1.14 fix threadsafe conversion bug + header-file-only version (#define STBI_HEADER_FILE_ONLY before including) + 1.13 threadsafe + 1.12 const qualifiers in the API + 1.11 Support installable IDCT, colorspace conversion routines + 1.10 Fixes for 64-bit (don't use "unsigned long") + optimized upsampling by Fabian "ryg" Giesen + 1.09 Fix format-conversion for PSD code (bad global variables!) + 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz + 1.07 attempt to fix C++ warning/errors again + 1.06 attempt to fix C++ warning/errors again + 1.05 fix TGA loading to return correct *comp and use good luminance calc + 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free + 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR + 1.02 support for (subset of) HDR files, float interface for preferred access to them + 1.01 fix bug: possible bug in handling right-side up bmps... not sure + fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all + 1.00 interface to zlib that skips zlib header + 0.99 correct handling of alpha in palette + 0.98 TGA loader by lonesock; dynamically add loaders (untested) + 0.97 jpeg errors on too large a file; also catch another malloc failure + 0.96 fix detection of invalid v value - particleman@mollyrocket forum + 0.95 during header scan, seek to markers in case of padding + 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same + 0.93 handle jpegtran output; verbose errors + 0.92 read 4,8,16,24,32-bit BMP files of several formats + 0.91 output 24-bit Windows 3.0 BMP files + 0.90 fix a few more warnings; bump version number to approach 1.0 + 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd + 0.60 fix compiling as c++ + 0.59 fix warnings: merge Dave Moore's -Wall fixes + 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian + 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available + 0.56 fix bug: zlib uncompressed mode len vs. nlen + 0.55 fix bug: restart_interval not initialized to 0 + 0.54 allow NULL for 'int *comp' + 0.53 fix bug in png 3->4; speedup png decoding + 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments + 0.51 obey req_comp requests, 1-component jpegs return as 1-component, + on 'test' only check type, not whether we support this variant + 0.50 (2006-11-19) + first released version +*/ + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/stb_image_resize.h b/stb_image_resize.h new file mode 100644 index 0000000..42a8efb --- /dev/null +++ b/stb_image_resize.h @@ -0,0 +1,2631 @@ +/* stb_image_resize - v0.96 - public domain image resizing + by Jorge L Rodriguez (@VinoBS) - 2014 + http://github.com/nothings/stb + + Written with emphasis on usability, portability, and efficiency. (No + SIMD or threads, so it be easily outperformed by libs that use those.) + Only scaling and translation is supported, no rotations or shears. + Easy API downsamples w/Mitchell filter, upsamples w/cubic interpolation. + + COMPILING & LINKING + In one C/C++ file that #includes this file, do this: + #define STB_IMAGE_RESIZE_IMPLEMENTATION + before the #include. That will create the implementation in that file. + + QUICKSTART + stbir_resize_uint8( input_pixels , in_w , in_h , 0, + output_pixels, out_w, out_h, 0, num_channels) + stbir_resize_float(...) + stbir_resize_uint8_srgb( input_pixels , in_w , in_h , 0, + output_pixels, out_w, out_h, 0, + num_channels , alpha_chan , 0) + stbir_resize_uint8_srgb_edgemode( + input_pixels , in_w , in_h , 0, + output_pixels, out_w, out_h, 0, + num_channels , alpha_chan , 0, STBIR_EDGE_CLAMP) + // WRAP/REFLECT/ZERO + + FULL API + See the "header file" section of the source for API documentation. + + ADDITIONAL DOCUMENTATION + + SRGB & FLOATING POINT REPRESENTATION + The sRGB functions presume IEEE floating point. If you do not have + IEEE floating point, define STBIR_NON_IEEE_FLOAT. This will use + a slower implementation. + + MEMORY ALLOCATION + The resize functions here perform a single memory allocation using + malloc. To control the memory allocation, before the #include that + triggers the implementation, do: + + #define STBIR_MALLOC(size,context) ... + #define STBIR_FREE(ptr,context) ... + + Each resize function makes exactly one call to malloc/free, so to use + temp memory, store the temp memory in the context and return that. + + ASSERT + Define STBIR_ASSERT(boolval) to override assert() and not use assert.h + + OPTIMIZATION + Define STBIR_SATURATE_INT to compute clamp values in-range using + integer operations instead of float operations. This may be faster + on some platforms. + + DEFAULT FILTERS + For functions which don't provide explicit control over what filters + to use, you can change the compile-time defaults with + + #define STBIR_DEFAULT_FILTER_UPSAMPLE STBIR_FILTER_something + #define STBIR_DEFAULT_FILTER_DOWNSAMPLE STBIR_FILTER_something + + See stbir_filter in the header-file section for the list of filters. + + NEW FILTERS + A number of 1D filter kernels are used. For a list of + supported filters see the stbir_filter enum. To add a new filter, + write a filter function and add it to stbir__filter_info_table. + + PROGRESS + For interactive use with slow resize operations, you can install + a progress-report callback: + + #define STBIR_PROGRESS_REPORT(val) some_func(val) + + The parameter val is a float which goes from 0 to 1 as progress is made. + + For example: + + static void my_progress_report(float progress); + #define STBIR_PROGRESS_REPORT(val) my_progress_report(val) + + #define STB_IMAGE_RESIZE_IMPLEMENTATION + #include "stb_image_resize.h" + + static void my_progress_report(float progress) + { + printf("Progress: %f%%\n", progress*100); + } + + MAX CHANNELS + If your image has more than 64 channels, define STBIR_MAX_CHANNELS + to the max you'll have. + + ALPHA CHANNEL + Most of the resizing functions provide the ability to control how + the alpha channel of an image is processed. The important things + to know about this: + + 1. The best mathematically-behaved version of alpha to use is + called "premultiplied alpha", in which the other color channels + have had the alpha value multiplied in. If you use premultiplied + alpha, linear filtering (such as image resampling done by this + library, or performed in texture units on GPUs) does the "right + thing". While premultiplied alpha is standard in the movie CGI + industry, it is still uncommon in the videogame/real-time world. + + If you linearly filter non-premultiplied alpha, strange effects + occur. (For example, the 50/50 average of 99% transparent bright green + and 1% transparent black produces 50% transparent dark green when + non-premultiplied, whereas premultiplied it produces 50% + transparent near-black. The former introduces green energy + that doesn't exist in the source image.) + + 2. Artists should not edit premultiplied-alpha images; artists + want non-premultiplied alpha images. Thus, art tools generally output + non-premultiplied alpha images. + + 3. You will get best results in most cases by converting images + to premultiplied alpha before processing them mathematically. + + 4. If you pass the flag STBIR_FLAG_ALPHA_PREMULTIPLIED, the + resizer does not do anything special for the alpha channel; + it is resampled identically to other channels. This produces + the correct results for premultiplied-alpha images, but produces + less-than-ideal results for non-premultiplied-alpha images. + + 5. If you do not pass the flag STBIR_FLAG_ALPHA_PREMULTIPLIED, + then the resizer weights the contribution of input pixels + based on their alpha values, or, equivalently, it multiplies + the alpha value into the color channels, resamples, then divides + by the resultant alpha value. Input pixels which have alpha=0 do + not contribute at all to output pixels unless _all_ of the input + pixels affecting that output pixel have alpha=0, in which case + the result for that pixel is the same as it would be without + STBIR_FLAG_ALPHA_PREMULTIPLIED. However, this is only true for + input images in integer formats. For input images in float format, + input pixels with alpha=0 have no effect, and output pixels + which have alpha=0 will be 0 in all channels. (For float images, + you can manually achieve the same result by adding a tiny epsilon + value to the alpha channel of every image, and then subtracting + or clamping it at the end.) + + 6. You can suppress the behavior described in #5 and make + all-0-alpha pixels have 0 in all channels by #defining + STBIR_NO_ALPHA_EPSILON. + + 7. You can separately control whether the alpha channel is + interpreted as linear or affected by the colorspace. By default + it is linear; you almost never want to apply the colorspace. + (For example, graphics hardware does not apply sRGB conversion + to the alpha channel.) + + CONTRIBUTORS + Jorge L Rodriguez: Implementation + Sean Barrett: API design, optimizations + Aras Pranckevicius: bugfix + Nathan Reed: warning fixes + + REVISIONS + 0.97 (2020-02-02) fixed warning + 0.96 (2019-03-04) fixed warnings + 0.95 (2017-07-23) fixed warnings + 0.94 (2017-03-18) fixed warnings + 0.93 (2017-03-03) fixed bug with certain combinations of heights + 0.92 (2017-01-02) fix integer overflow on large (>2GB) images + 0.91 (2016-04-02) fix warnings; fix handling of subpixel regions + 0.90 (2014-09-17) first released version + + LICENSE + See end of file for license information. + + TODO + Don't decode all of the image data when only processing a partial tile + Don't use full-width decode buffers when only processing a partial tile + When processing wide images, break processing into tiles so data fits in L1 cache + Installable filters? + Resize that respects alpha test coverage + (Reference code: FloatImage::alphaTestCoverage and FloatImage::scaleAlphaToCoverage: + https://code.google.com/p/nvidia-texture-tools/source/browse/trunk/src/nvimage/FloatImage.cpp ) +*/ + +#ifndef STBIR_INCLUDE_STB_IMAGE_RESIZE_H +#define STBIR_INCLUDE_STB_IMAGE_RESIZE_H + +#ifdef _MSC_VER +typedef unsigned char stbir_uint8; +typedef unsigned short stbir_uint16; +typedef unsigned int stbir_uint32; +#else +#include <stdint.h> +typedef uint8_t stbir_uint8; +typedef uint16_t stbir_uint16; +typedef uint32_t stbir_uint32; +#endif + +#ifndef STBIRDEF +#ifdef STB_IMAGE_RESIZE_STATIC +#define STBIRDEF static +#else +#ifdef __cplusplus +#define STBIRDEF extern "C" +#else +#define STBIRDEF extern +#endif +#endif +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// Easy-to-use API: +// +// * "input pixels" points to an array of image data with 'num_channels' channels (e.g. RGB=3, RGBA=4) +// * input_w is input image width (x-axis), input_h is input image height (y-axis) +// * stride is the offset between successive rows of image data in memory, in bytes. you can +// specify 0 to mean packed continuously in memory +// * alpha channel is treated identically to other channels. +// * colorspace is linear or sRGB as specified by function name +// * returned result is 1 for success or 0 in case of an error. +// #define STBIR_ASSERT() to trigger an assert on parameter validation errors. +// * Memory required grows approximately linearly with input and output size, but with +// discontinuities at input_w == output_w and input_h == output_h. +// * These functions use a "default" resampling filter defined at compile time. To change the filter, +// you can change the compile-time defaults by #defining STBIR_DEFAULT_FILTER_UPSAMPLE +// and STBIR_DEFAULT_FILTER_DOWNSAMPLE, or you can use the medium-complexity API. + +STBIRDEF int stbir_resize_uint8( const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels); + +STBIRDEF int stbir_resize_float( const float *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + float *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels); + + +// The following functions interpret image data as gamma-corrected sRGB. +// Specify STBIR_ALPHA_CHANNEL_NONE if you have no alpha channel, +// or otherwise provide the index of the alpha channel. Flags value +// of 0 will probably do the right thing if you're not sure what +// the flags mean. + +#define STBIR_ALPHA_CHANNEL_NONE -1 + +// Set this flag if your texture has premultiplied alpha. Otherwise, stbir will +// use alpha-weighted resampling (effectively premultiplying, resampling, +// then unpremultiplying). +#define STBIR_FLAG_ALPHA_PREMULTIPLIED (1 << 0) +// The specified alpha channel should be handled as gamma-corrected value even +// when doing sRGB operations. +#define STBIR_FLAG_ALPHA_USES_COLORSPACE (1 << 1) + +STBIRDEF int stbir_resize_uint8_srgb(const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags); + + +typedef enum +{ + STBIR_EDGE_CLAMP = 1, + STBIR_EDGE_REFLECT = 2, + STBIR_EDGE_WRAP = 3, + STBIR_EDGE_ZERO = 4, +} stbir_edge; + +// This function adds the ability to specify how requests to sample off the edge of the image are handled. +STBIRDEF int stbir_resize_uint8_srgb_edgemode(const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_wrap_mode); + +////////////////////////////////////////////////////////////////////////////// +// +// Medium-complexity API +// +// This extends the easy-to-use API as follows: +// +// * Alpha-channel can be processed separately +// * If alpha_channel is not STBIR_ALPHA_CHANNEL_NONE +// * Alpha channel will not be gamma corrected (unless flags&STBIR_FLAG_GAMMA_CORRECT) +// * Filters will be weighted by alpha channel (unless flags&STBIR_FLAG_ALPHA_PREMULTIPLIED) +// * Filter can be selected explicitly +// * uint16 image type +// * sRGB colorspace available for all types +// * context parameter for passing to STBIR_MALLOC + +typedef enum +{ + STBIR_FILTER_DEFAULT = 0, // use same filter type that easy-to-use API chooses + STBIR_FILTER_BOX = 1, // A trapezoid w/1-pixel wide ramps, same result as box for integer scale ratios + STBIR_FILTER_TRIANGLE = 2, // On upsampling, produces same results as bilinear texture filtering + STBIR_FILTER_CUBICBSPLINE = 3, // The cubic b-spline (aka Mitchell-Netrevalli with B=1,C=0), gaussian-esque + STBIR_FILTER_CATMULLROM = 4, // An interpolating cubic spline + STBIR_FILTER_MITCHELL = 5, // Mitchell-Netrevalli filter with B=1/3, C=1/3 +} stbir_filter; + +typedef enum +{ + STBIR_COLORSPACE_LINEAR, + STBIR_COLORSPACE_SRGB, + + STBIR_MAX_COLORSPACES, +} stbir_colorspace; + +// The following functions are all identical except for the type of the image data + +STBIRDEF int stbir_resize_uint8_generic( const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space, + void *alloc_context); + +STBIRDEF int stbir_resize_uint16_generic(const stbir_uint16 *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + stbir_uint16 *output_pixels , int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space, + void *alloc_context); + +STBIRDEF int stbir_resize_float_generic( const float *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + float *output_pixels , int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space, + void *alloc_context); + + + +////////////////////////////////////////////////////////////////////////////// +// +// Full-complexity API +// +// This extends the medium API as follows: +// +// * uint32 image type +// * not typesafe +// * separate filter types for each axis +// * separate edge modes for each axis +// * can specify scale explicitly for subpixel correctness +// * can specify image source tile using texture coordinates + +typedef enum +{ + STBIR_TYPE_UINT8 , + STBIR_TYPE_UINT16, + STBIR_TYPE_UINT32, + STBIR_TYPE_FLOAT , + + STBIR_MAX_TYPES +} stbir_datatype; + +STBIRDEF int stbir_resize( const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + void *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + stbir_datatype datatype, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical, + stbir_filter filter_horizontal, stbir_filter filter_vertical, + stbir_colorspace space, void *alloc_context); + +STBIRDEF int stbir_resize_subpixel(const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + void *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + stbir_datatype datatype, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical, + stbir_filter filter_horizontal, stbir_filter filter_vertical, + stbir_colorspace space, void *alloc_context, + float x_scale, float y_scale, + float x_offset, float y_offset); + +STBIRDEF int stbir_resize_region( const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + void *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + stbir_datatype datatype, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical, + stbir_filter filter_horizontal, stbir_filter filter_vertical, + stbir_colorspace space, void *alloc_context, + float s0, float t0, float s1, float t1); +// (s0, t0) & (s1, t1) are the top-left and bottom right corner (uv addressing style: [0, 1]x[0, 1]) of a region of the input image to use. + +// +// +//// end header file ///////////////////////////////////////////////////// +#endif // STBIR_INCLUDE_STB_IMAGE_RESIZE_H + + + + + +#ifdef STB_IMAGE_RESIZE_IMPLEMENTATION + +#ifndef STBIR_ASSERT +#include <assert.h> +#define STBIR_ASSERT(x) assert(x) +#endif + +// For memset +#include <string.h> + +#include <math.h> + +#ifndef STBIR_MALLOC +#include <stdlib.h> +// use comma operator to evaluate c, to avoid "unused parameter" warnings +#define STBIR_MALLOC(size,c) ((void)(c), malloc(size)) +#define STBIR_FREE(ptr,c) ((void)(c), free(ptr)) +#endif + +#ifndef _MSC_VER +#ifdef __cplusplus +#define stbir__inline inline +#else +#define stbir__inline +#endif +#else +#define stbir__inline __forceinline +#endif + + +// should produce compiler error if size is wrong +typedef unsigned char stbir__validate_uint32[sizeof(stbir_uint32) == 4 ? 1 : -1]; + +#ifdef _MSC_VER +#define STBIR__NOTUSED(v) (void)(v) +#else +#define STBIR__NOTUSED(v) (void)sizeof(v) +#endif + +#define STBIR__ARRAY_SIZE(a) (sizeof((a))/sizeof((a)[0])) + +#ifndef STBIR_DEFAULT_FILTER_UPSAMPLE +#define STBIR_DEFAULT_FILTER_UPSAMPLE STBIR_FILTER_CATMULLROM +#endif + +#ifndef STBIR_DEFAULT_FILTER_DOWNSAMPLE +#define STBIR_DEFAULT_FILTER_DOWNSAMPLE STBIR_FILTER_MITCHELL +#endif + +#ifndef STBIR_PROGRESS_REPORT +#define STBIR_PROGRESS_REPORT(float_0_to_1) +#endif + +#ifndef STBIR_MAX_CHANNELS +#define STBIR_MAX_CHANNELS 64 +#endif + +#if STBIR_MAX_CHANNELS > 65536 +#error "Too many channels; STBIR_MAX_CHANNELS must be no more than 65536." +// because we store the indices in 16-bit variables +#endif + +// This value is added to alpha just before premultiplication to avoid +// zeroing out color values. It is equivalent to 2^-80. If you don't want +// that behavior (it may interfere if you have floating point images with +// very small alpha values) then you can define STBIR_NO_ALPHA_EPSILON to +// disable it. +#ifndef STBIR_ALPHA_EPSILON +#define STBIR_ALPHA_EPSILON ((float)1 / (1 << 20) / (1 << 20) / (1 << 20) / (1 << 20)) +#endif + + + +#ifdef _MSC_VER +#define STBIR__UNUSED_PARAM(v) (void)(v) +#else +#define STBIR__UNUSED_PARAM(v) (void)sizeof(v) +#endif + +// must match stbir_datatype +static unsigned char stbir__type_size[] = { + 1, // STBIR_TYPE_UINT8 + 2, // STBIR_TYPE_UINT16 + 4, // STBIR_TYPE_UINT32 + 4, // STBIR_TYPE_FLOAT +}; + +// Kernel function centered at 0 +typedef float (stbir__kernel_fn)(float x, float scale); +typedef float (stbir__support_fn)(float scale); + +typedef struct +{ + stbir__kernel_fn* kernel; + stbir__support_fn* support; +} stbir__filter_info; + +// When upsampling, the contributors are which source pixels contribute. +// When downsampling, the contributors are which destination pixels are contributed to. +typedef struct +{ + int n0; // First contributing pixel + int n1; // Last contributing pixel +} stbir__contributors; + +typedef struct +{ + const void* input_data; + int input_w; + int input_h; + int input_stride_bytes; + + void* output_data; + int output_w; + int output_h; + int output_stride_bytes; + + float s0, t0, s1, t1; + + float horizontal_shift; // Units: output pixels + float vertical_shift; // Units: output pixels + float horizontal_scale; + float vertical_scale; + + int channels; + int alpha_channel; + stbir_uint32 flags; + stbir_datatype type; + stbir_filter horizontal_filter; + stbir_filter vertical_filter; + stbir_edge edge_horizontal; + stbir_edge edge_vertical; + stbir_colorspace colorspace; + + stbir__contributors* horizontal_contributors; + float* horizontal_coefficients; + + stbir__contributors* vertical_contributors; + float* vertical_coefficients; + + int decode_buffer_pixels; + float* decode_buffer; + + float* horizontal_buffer; + + // cache these because ceil/floor are inexplicably showing up in profile + int horizontal_coefficient_width; + int vertical_coefficient_width; + int horizontal_filter_pixel_width; + int vertical_filter_pixel_width; + int horizontal_filter_pixel_margin; + int vertical_filter_pixel_margin; + int horizontal_num_contributors; + int vertical_num_contributors; + + int ring_buffer_length_bytes; // The length of an individual entry in the ring buffer. The total number of ring buffers is stbir__get_filter_pixel_width(filter) + int ring_buffer_num_entries; // Total number of entries in the ring buffer. + int ring_buffer_first_scanline; + int ring_buffer_last_scanline; + int ring_buffer_begin_index; // first_scanline is at this index in the ring buffer + float* ring_buffer; + + float* encode_buffer; // A temporary buffer to store floats so we don't lose precision while we do multiply-adds. + + int horizontal_contributors_size; + int horizontal_coefficients_size; + int vertical_contributors_size; + int vertical_coefficients_size; + int decode_buffer_size; + int horizontal_buffer_size; + int ring_buffer_size; + int encode_buffer_size; +} stbir__info; + + +static const float stbir__max_uint8_as_float = 255.0f; +static const float stbir__max_uint16_as_float = 65535.0f; +static const double stbir__max_uint32_as_float = 4294967295.0; + + +static stbir__inline int stbir__min(int a, int b) +{ + return a < b ? a : b; +} + +static stbir__inline float stbir__saturate(float x) +{ + if (x < 0) + return 0; + + if (x > 1) + return 1; + + return x; +} + +#ifdef STBIR_SATURATE_INT +static stbir__inline stbir_uint8 stbir__saturate8(int x) +{ + if ((unsigned int) x <= 255) + return x; + + if (x < 0) + return 0; + + return 255; +} + +static stbir__inline stbir_uint16 stbir__saturate16(int x) +{ + if ((unsigned int) x <= 65535) + return x; + + if (x < 0) + return 0; + + return 65535; +} +#endif + +static float stbir__srgb_uchar_to_linear_float[256] = { + 0.000000f, 0.000304f, 0.000607f, 0.000911f, 0.001214f, 0.001518f, 0.001821f, 0.002125f, 0.002428f, 0.002732f, 0.003035f, + 0.003347f, 0.003677f, 0.004025f, 0.004391f, 0.004777f, 0.005182f, 0.005605f, 0.006049f, 0.006512f, 0.006995f, 0.007499f, + 0.008023f, 0.008568f, 0.009134f, 0.009721f, 0.010330f, 0.010960f, 0.011612f, 0.012286f, 0.012983f, 0.013702f, 0.014444f, + 0.015209f, 0.015996f, 0.016807f, 0.017642f, 0.018500f, 0.019382f, 0.020289f, 0.021219f, 0.022174f, 0.023153f, 0.024158f, + 0.025187f, 0.026241f, 0.027321f, 0.028426f, 0.029557f, 0.030713f, 0.031896f, 0.033105f, 0.034340f, 0.035601f, 0.036889f, + 0.038204f, 0.039546f, 0.040915f, 0.042311f, 0.043735f, 0.045186f, 0.046665f, 0.048172f, 0.049707f, 0.051269f, 0.052861f, + 0.054480f, 0.056128f, 0.057805f, 0.059511f, 0.061246f, 0.063010f, 0.064803f, 0.066626f, 0.068478f, 0.070360f, 0.072272f, + 0.074214f, 0.076185f, 0.078187f, 0.080220f, 0.082283f, 0.084376f, 0.086500f, 0.088656f, 0.090842f, 0.093059f, 0.095307f, + 0.097587f, 0.099899f, 0.102242f, 0.104616f, 0.107023f, 0.109462f, 0.111932f, 0.114435f, 0.116971f, 0.119538f, 0.122139f, + 0.124772f, 0.127438f, 0.130136f, 0.132868f, 0.135633f, 0.138432f, 0.141263f, 0.144128f, 0.147027f, 0.149960f, 0.152926f, + 0.155926f, 0.158961f, 0.162029f, 0.165132f, 0.168269f, 0.171441f, 0.174647f, 0.177888f, 0.181164f, 0.184475f, 0.187821f, + 0.191202f, 0.194618f, 0.198069f, 0.201556f, 0.205079f, 0.208637f, 0.212231f, 0.215861f, 0.219526f, 0.223228f, 0.226966f, + 0.230740f, 0.234551f, 0.238398f, 0.242281f, 0.246201f, 0.250158f, 0.254152f, 0.258183f, 0.262251f, 0.266356f, 0.270498f, + 0.274677f, 0.278894f, 0.283149f, 0.287441f, 0.291771f, 0.296138f, 0.300544f, 0.304987f, 0.309469f, 0.313989f, 0.318547f, + 0.323143f, 0.327778f, 0.332452f, 0.337164f, 0.341914f, 0.346704f, 0.351533f, 0.356400f, 0.361307f, 0.366253f, 0.371238f, + 0.376262f, 0.381326f, 0.386430f, 0.391573f, 0.396755f, 0.401978f, 0.407240f, 0.412543f, 0.417885f, 0.423268f, 0.428691f, + 0.434154f, 0.439657f, 0.445201f, 0.450786f, 0.456411f, 0.462077f, 0.467784f, 0.473532f, 0.479320f, 0.485150f, 0.491021f, + 0.496933f, 0.502887f, 0.508881f, 0.514918f, 0.520996f, 0.527115f, 0.533276f, 0.539480f, 0.545725f, 0.552011f, 0.558340f, + 0.564712f, 0.571125f, 0.577581f, 0.584078f, 0.590619f, 0.597202f, 0.603827f, 0.610496f, 0.617207f, 0.623960f, 0.630757f, + 0.637597f, 0.644480f, 0.651406f, 0.658375f, 0.665387f, 0.672443f, 0.679543f, 0.686685f, 0.693872f, 0.701102f, 0.708376f, + 0.715694f, 0.723055f, 0.730461f, 0.737911f, 0.745404f, 0.752942f, 0.760525f, 0.768151f, 0.775822f, 0.783538f, 0.791298f, + 0.799103f, 0.806952f, 0.814847f, 0.822786f, 0.830770f, 0.838799f, 0.846873f, 0.854993f, 0.863157f, 0.871367f, 0.879622f, + 0.887923f, 0.896269f, 0.904661f, 0.913099f, 0.921582f, 0.930111f, 0.938686f, 0.947307f, 0.955974f, 0.964686f, 0.973445f, + 0.982251f, 0.991102f, 1.0f +}; + +static float stbir__srgb_to_linear(float f) +{ + if (f <= 0.04045f) + return f / 12.92f; + else + return (float)pow((f + 0.055f) / 1.055f, 2.4f); +} + +static float stbir__linear_to_srgb(float f) +{ + if (f <= 0.0031308f) + return f * 12.92f; + else + return 1.055f * (float)pow(f, 1 / 2.4f) - 0.055f; +} + +#ifndef STBIR_NON_IEEE_FLOAT +// From https://gist.github.com/rygorous/2203834 + +typedef union +{ + stbir_uint32 u; + float f; +} stbir__FP32; + +static const stbir_uint32 fp32_to_srgb8_tab4[104] = { + 0x0073000d, 0x007a000d, 0x0080000d, 0x0087000d, 0x008d000d, 0x0094000d, 0x009a000d, 0x00a1000d, + 0x00a7001a, 0x00b4001a, 0x00c1001a, 0x00ce001a, 0x00da001a, 0x00e7001a, 0x00f4001a, 0x0101001a, + 0x010e0033, 0x01280033, 0x01410033, 0x015b0033, 0x01750033, 0x018f0033, 0x01a80033, 0x01c20033, + 0x01dc0067, 0x020f0067, 0x02430067, 0x02760067, 0x02aa0067, 0x02dd0067, 0x03110067, 0x03440067, + 0x037800ce, 0x03df00ce, 0x044600ce, 0x04ad00ce, 0x051400ce, 0x057b00c5, 0x05dd00bc, 0x063b00b5, + 0x06970158, 0x07420142, 0x07e30130, 0x087b0120, 0x090b0112, 0x09940106, 0x0a1700fc, 0x0a9500f2, + 0x0b0f01cb, 0x0bf401ae, 0x0ccb0195, 0x0d950180, 0x0e56016e, 0x0f0d015e, 0x0fbc0150, 0x10630143, + 0x11070264, 0x1238023e, 0x1357021d, 0x14660201, 0x156601e9, 0x165a01d3, 0x174401c0, 0x182401af, + 0x18fe0331, 0x1a9602fe, 0x1c1502d2, 0x1d7e02ad, 0x1ed4028d, 0x201a0270, 0x21520256, 0x227d0240, + 0x239f0443, 0x25c003fe, 0x27bf03c4, 0x29a10392, 0x2b6a0367, 0x2d1d0341, 0x2ebe031f, 0x304d0300, + 0x31d105b0, 0x34a80555, 0x37520507, 0x39d504c5, 0x3c37048b, 0x3e7c0458, 0x40a8042a, 0x42bd0401, + 0x44c20798, 0x488e071e, 0x4c1c06b6, 0x4f76065d, 0x52a50610, 0x55ac05cc, 0x5892058f, 0x5b590559, + 0x5e0c0a23, 0x631c0980, 0x67db08f6, 0x6c55087f, 0x70940818, 0x74a007bd, 0x787d076c, 0x7c330723, +}; + +static stbir_uint8 stbir__linear_to_srgb_uchar(float in) +{ + static const stbir__FP32 almostone = { 0x3f7fffff }; // 1-eps + static const stbir__FP32 minval = { (127-13) << 23 }; + stbir_uint32 tab,bias,scale,t; + stbir__FP32 f; + + // Clamp to [2^(-13), 1-eps]; these two values map to 0 and 1, respectively. + // The tests are carefully written so that NaNs map to 0, same as in the reference + // implementation. + if (!(in > minval.f)) // written this way to catch NaNs + in = minval.f; + if (in > almostone.f) + in = almostone.f; + + // Do the table lookup and unpack bias, scale + f.f = in; + tab = fp32_to_srgb8_tab4[(f.u - minval.u) >> 20]; + bias = (tab >> 16) << 9; + scale = tab & 0xffff; + + // Grab next-highest mantissa bits and perform linear interpolation + t = (f.u >> 12) & 0xff; + return (unsigned char) ((bias + scale*t) >> 16); +} + +#else +// sRGB transition values, scaled by 1<<28 +static int stbir__srgb_offset_to_linear_scaled[256] = +{ + 0, 40738, 122216, 203693, 285170, 366648, 448125, 529603, + 611080, 692557, 774035, 855852, 942009, 1033024, 1128971, 1229926, + 1335959, 1447142, 1563542, 1685229, 1812268, 1944725, 2082664, 2226148, + 2375238, 2529996, 2690481, 2856753, 3028870, 3206888, 3390865, 3580856, + 3776916, 3979100, 4187460, 4402049, 4622919, 4850123, 5083710, 5323731, + 5570236, 5823273, 6082892, 6349140, 6622065, 6901714, 7188133, 7481369, + 7781466, 8088471, 8402427, 8723380, 9051372, 9386448, 9728650, 10078021, + 10434603, 10798439, 11169569, 11548036, 11933879, 12327139, 12727857, 13136073, + 13551826, 13975156, 14406100, 14844697, 15290987, 15745007, 16206795, 16676389, + 17153826, 17639142, 18132374, 18633560, 19142734, 19659934, 20185196, 20718552, + 21260042, 21809696, 22367554, 22933648, 23508010, 24090680, 24681686, 25281066, + 25888850, 26505076, 27129772, 27762974, 28404716, 29055026, 29713942, 30381490, + 31057708, 31742624, 32436272, 33138682, 33849884, 34569912, 35298800, 36036568, + 36783260, 37538896, 38303512, 39077136, 39859796, 40651528, 41452360, 42262316, + 43081432, 43909732, 44747252, 45594016, 46450052, 47315392, 48190064, 49074096, + 49967516, 50870356, 51782636, 52704392, 53635648, 54576432, 55526772, 56486700, + 57456236, 58435408, 59424248, 60422780, 61431036, 62449032, 63476804, 64514376, + 65561776, 66619028, 67686160, 68763192, 69850160, 70947088, 72053992, 73170912, + 74297864, 75434880, 76581976, 77739184, 78906536, 80084040, 81271736, 82469648, + 83677792, 84896192, 86124888, 87363888, 88613232, 89872928, 91143016, 92423512, + 93714432, 95015816, 96327688, 97650056, 98982952, 100326408, 101680440, 103045072, + 104420320, 105806224, 107202800, 108610064, 110028048, 111456776, 112896264, 114346544, + 115807632, 117279552, 118762328, 120255976, 121760536, 123276016, 124802440, 126339832, + 127888216, 129447616, 131018048, 132599544, 134192112, 135795792, 137410592, 139036528, + 140673648, 142321952, 143981456, 145652208, 147334208, 149027488, 150732064, 152447968, + 154175200, 155913792, 157663776, 159425168, 161197984, 162982240, 164777968, 166585184, + 168403904, 170234160, 172075968, 173929344, 175794320, 177670896, 179559120, 181458992, + 183370528, 185293776, 187228736, 189175424, 191133888, 193104112, 195086128, 197079968, + 199085648, 201103184, 203132592, 205173888, 207227120, 209292272, 211369392, 213458480, + 215559568, 217672656, 219797792, 221934976, 224084240, 226245600, 228419056, 230604656, + 232802400, 235012320, 237234432, 239468736, 241715280, 243974080, 246245120, 248528464, + 250824112, 253132064, 255452368, 257785040, 260130080, 262487520, 264857376, 267239664, +}; + +static stbir_uint8 stbir__linear_to_srgb_uchar(float f) +{ + int x = (int) (f * (1 << 28)); // has headroom so you don't need to clamp + int v = 0; + int i; + + // Refine the guess with a short binary search. + i = v + 128; if (x >= stbir__srgb_offset_to_linear_scaled[i]) v = i; + i = v + 64; if (x >= stbir__srgb_offset_to_linear_scaled[i]) v = i; + i = v + 32; if (x >= stbir__srgb_offset_to_linear_scaled[i]) v = i; + i = v + 16; if (x >= stbir__srgb_offset_to_linear_scaled[i]) v = i; + i = v + 8; if (x >= stbir__srgb_offset_to_linear_scaled[i]) v = i; + i = v + 4; if (x >= stbir__srgb_offset_to_linear_scaled[i]) v = i; + i = v + 2; if (x >= stbir__srgb_offset_to_linear_scaled[i]) v = i; + i = v + 1; if (x >= stbir__srgb_offset_to_linear_scaled[i]) v = i; + + return (stbir_uint8) v; +} +#endif + +static float stbir__filter_trapezoid(float x, float scale) +{ + float halfscale = scale / 2; + float t = 0.5f + halfscale; + STBIR_ASSERT(scale <= 1); + + x = (float)fabs(x); + + if (x >= t) + return 0; + else + { + float r = 0.5f - halfscale; + if (x <= r) + return 1; + else + return (t - x) / scale; + } +} + +static float stbir__support_trapezoid(float scale) +{ + STBIR_ASSERT(scale <= 1); + return 0.5f + scale / 2; +} + +static float stbir__filter_triangle(float x, float s) +{ + STBIR__UNUSED_PARAM(s); + + x = (float)fabs(x); + + if (x <= 1.0f) + return 1 - x; + else + return 0; +} + +static float stbir__filter_cubic(float x, float s) +{ + STBIR__UNUSED_PARAM(s); + + x = (float)fabs(x); + + if (x < 1.0f) + return (4 + x*x*(3*x - 6))/6; + else if (x < 2.0f) + return (8 + x*(-12 + x*(6 - x)))/6; + + return (0.0f); +} + +static float stbir__filter_catmullrom(float x, float s) +{ + STBIR__UNUSED_PARAM(s); + + x = (float)fabs(x); + + if (x < 1.0f) + return 1 - x*x*(2.5f - 1.5f*x); + else if (x < 2.0f) + return 2 - x*(4 + x*(0.5f*x - 2.5f)); + + return (0.0f); +} + +static float stbir__filter_mitchell(float x, float s) +{ + STBIR__UNUSED_PARAM(s); + + x = (float)fabs(x); + + if (x < 1.0f) + return (16 + x*x*(21 * x - 36))/18; + else if (x < 2.0f) + return (32 + x*(-60 + x*(36 - 7*x)))/18; + + return (0.0f); +} + +static float stbir__support_zero(float s) +{ + STBIR__UNUSED_PARAM(s); + return 0; +} + +static float stbir__support_one(float s) +{ + STBIR__UNUSED_PARAM(s); + return 1; +} + +static float stbir__support_two(float s) +{ + STBIR__UNUSED_PARAM(s); + return 2; +} + +static stbir__filter_info stbir__filter_info_table[] = { + { NULL, stbir__support_zero }, + { stbir__filter_trapezoid, stbir__support_trapezoid }, + { stbir__filter_triangle, stbir__support_one }, + { stbir__filter_cubic, stbir__support_two }, + { stbir__filter_catmullrom, stbir__support_two }, + { stbir__filter_mitchell, stbir__support_two }, +}; + +stbir__inline static int stbir__use_upsampling(float ratio) +{ + return ratio > 1; +} + +stbir__inline static int stbir__use_width_upsampling(stbir__info* stbir_info) +{ + return stbir__use_upsampling(stbir_info->horizontal_scale); +} + +stbir__inline static int stbir__use_height_upsampling(stbir__info* stbir_info) +{ + return stbir__use_upsampling(stbir_info->vertical_scale); +} + +// This is the maximum number of input samples that can affect an output sample +// with the given filter +static int stbir__get_filter_pixel_width(stbir_filter filter, float scale) +{ + STBIR_ASSERT(filter != 0); + STBIR_ASSERT(filter < STBIR__ARRAY_SIZE(stbir__filter_info_table)); + + if (stbir__use_upsampling(scale)) + return (int)ceil(stbir__filter_info_table[filter].support(1/scale) * 2); + else + return (int)ceil(stbir__filter_info_table[filter].support(scale) * 2 / scale); +} + +// This is how much to expand buffers to account for filters seeking outside +// the image boundaries. +static int stbir__get_filter_pixel_margin(stbir_filter filter, float scale) +{ + return stbir__get_filter_pixel_width(filter, scale) / 2; +} + +static int stbir__get_coefficient_width(stbir_filter filter, float scale) +{ + if (stbir__use_upsampling(scale)) + return (int)ceil(stbir__filter_info_table[filter].support(1 / scale) * 2); + else + return (int)ceil(stbir__filter_info_table[filter].support(scale) * 2); +} + +static int stbir__get_contributors(float scale, stbir_filter filter, int input_size, int output_size) +{ + if (stbir__use_upsampling(scale)) + return output_size; + else + return (input_size + stbir__get_filter_pixel_margin(filter, scale) * 2); +} + +static int stbir__get_total_horizontal_coefficients(stbir__info* info) +{ + return info->horizontal_num_contributors + * stbir__get_coefficient_width (info->horizontal_filter, info->horizontal_scale); +} + +static int stbir__get_total_vertical_coefficients(stbir__info* info) +{ + return info->vertical_num_contributors + * stbir__get_coefficient_width (info->vertical_filter, info->vertical_scale); +} + +static stbir__contributors* stbir__get_contributor(stbir__contributors* contributors, int n) +{ + return &contributors[n]; +} + +// For perf reasons this code is duplicated in stbir__resample_horizontal_upsample/downsample, +// if you change it here change it there too. +static float* stbir__get_coefficient(float* coefficients, stbir_filter filter, float scale, int n, int c) +{ + int width = stbir__get_coefficient_width(filter, scale); + return &coefficients[width*n + c]; +} + +static int stbir__edge_wrap_slow(stbir_edge edge, int n, int max) +{ + switch (edge) + { + case STBIR_EDGE_ZERO: + return 0; // we'll decode the wrong pixel here, and then overwrite with 0s later + + case STBIR_EDGE_CLAMP: + if (n < 0) + return 0; + + if (n >= max) + return max - 1; + + return n; // NOTREACHED + + case STBIR_EDGE_REFLECT: + { + if (n < 0) + { + if (n < max) + return -n; + else + return max - 1; + } + + if (n >= max) + { + int max2 = max * 2; + if (n >= max2) + return 0; + else + return max2 - n - 1; + } + + return n; // NOTREACHED + } + + case STBIR_EDGE_WRAP: + if (n >= 0) + return (n % max); + else + { + int m = (-n) % max; + + if (m != 0) + m = max - m; + + return (m); + } + // NOTREACHED + + default: + STBIR_ASSERT(!"Unimplemented edge type"); + return 0; + } +} + +stbir__inline static int stbir__edge_wrap(stbir_edge edge, int n, int max) +{ + // avoid per-pixel switch + if (n >= 0 && n < max) + return n; + return stbir__edge_wrap_slow(edge, n, max); +} + +// What input pixels contribute to this output pixel? +static void stbir__calculate_sample_range_upsample(int n, float out_filter_radius, float scale_ratio, float out_shift, int* in_first_pixel, int* in_last_pixel, float* in_center_of_out) +{ + float out_pixel_center = (float)n + 0.5f; + float out_pixel_influence_lowerbound = out_pixel_center - out_filter_radius; + float out_pixel_influence_upperbound = out_pixel_center + out_filter_radius; + + float in_pixel_influence_lowerbound = (out_pixel_influence_lowerbound + out_shift) / scale_ratio; + float in_pixel_influence_upperbound = (out_pixel_influence_upperbound + out_shift) / scale_ratio; + + *in_center_of_out = (out_pixel_center + out_shift) / scale_ratio; + *in_first_pixel = (int)(floor(in_pixel_influence_lowerbound + 0.5)); + *in_last_pixel = (int)(floor(in_pixel_influence_upperbound - 0.5)); +} + +// What output pixels does this input pixel contribute to? +static void stbir__calculate_sample_range_downsample(int n, float in_pixels_radius, float scale_ratio, float out_shift, int* out_first_pixel, int* out_last_pixel, float* out_center_of_in) +{ + float in_pixel_center = (float)n + 0.5f; + float in_pixel_influence_lowerbound = in_pixel_center - in_pixels_radius; + float in_pixel_influence_upperbound = in_pixel_center + in_pixels_radius; + + float out_pixel_influence_lowerbound = in_pixel_influence_lowerbound * scale_ratio - out_shift; + float out_pixel_influence_upperbound = in_pixel_influence_upperbound * scale_ratio - out_shift; + + *out_center_of_in = in_pixel_center * scale_ratio - out_shift; + *out_first_pixel = (int)(floor(out_pixel_influence_lowerbound + 0.5)); + *out_last_pixel = (int)(floor(out_pixel_influence_upperbound - 0.5)); +} + +static void stbir__calculate_coefficients_upsample(stbir_filter filter, float scale, int in_first_pixel, int in_last_pixel, float in_center_of_out, stbir__contributors* contributor, float* coefficient_group) +{ + int i; + float total_filter = 0; + float filter_scale; + + STBIR_ASSERT(in_last_pixel - in_first_pixel <= (int)ceil(stbir__filter_info_table[filter].support(1/scale) * 2)); // Taken directly from stbir__get_coefficient_width() which we can't call because we don't know if we're horizontal or vertical. + + contributor->n0 = in_first_pixel; + contributor->n1 = in_last_pixel; + + STBIR_ASSERT(contributor->n1 >= contributor->n0); + + for (i = 0; i <= in_last_pixel - in_first_pixel; i++) + { + float in_pixel_center = (float)(i + in_first_pixel) + 0.5f; + coefficient_group[i] = stbir__filter_info_table[filter].kernel(in_center_of_out - in_pixel_center, 1 / scale); + + // If the coefficient is zero, skip it. (Don't do the <0 check here, we want the influence of those outside pixels.) + if (i == 0 && !coefficient_group[i]) + { + contributor->n0 = ++in_first_pixel; + i--; + continue; + } + + total_filter += coefficient_group[i]; + } + + STBIR_ASSERT(stbir__filter_info_table[filter].kernel((float)(in_last_pixel + 1) + 0.5f - in_center_of_out, 1/scale) == 0); + + STBIR_ASSERT(total_filter > 0.9); + STBIR_ASSERT(total_filter < 1.1f); // Make sure it's not way off. + + // Make sure the sum of all coefficients is 1. + filter_scale = 1 / total_filter; + + for (i = 0; i <= in_last_pixel - in_first_pixel; i++) + coefficient_group[i] *= filter_scale; + + for (i = in_last_pixel - in_first_pixel; i >= 0; i--) + { + if (coefficient_group[i]) + break; + + // This line has no weight. We can skip it. + contributor->n1 = contributor->n0 + i - 1; + } +} + +static void stbir__calculate_coefficients_downsample(stbir_filter filter, float scale_ratio, int out_first_pixel, int out_last_pixel, float out_center_of_in, stbir__contributors* contributor, float* coefficient_group) +{ + int i; + + STBIR_ASSERT(out_last_pixel - out_first_pixel <= (int)ceil(stbir__filter_info_table[filter].support(scale_ratio) * 2)); // Taken directly from stbir__get_coefficient_width() which we can't call because we don't know if we're horizontal or vertical. + + contributor->n0 = out_first_pixel; + contributor->n1 = out_last_pixel; + + STBIR_ASSERT(contributor->n1 >= contributor->n0); + + for (i = 0; i <= out_last_pixel - out_first_pixel; i++) + { + float out_pixel_center = (float)(i + out_first_pixel) + 0.5f; + float x = out_pixel_center - out_center_of_in; + coefficient_group[i] = stbir__filter_info_table[filter].kernel(x, scale_ratio) * scale_ratio; + } + + STBIR_ASSERT(stbir__filter_info_table[filter].kernel((float)(out_last_pixel + 1) + 0.5f - out_center_of_in, scale_ratio) == 0); + + for (i = out_last_pixel - out_first_pixel; i >= 0; i--) + { + if (coefficient_group[i]) + break; + + // This line has no weight. We can skip it. + contributor->n1 = contributor->n0 + i - 1; + } +} + +static void stbir__normalize_downsample_coefficients(stbir__contributors* contributors, float* coefficients, stbir_filter filter, float scale_ratio, int input_size, int output_size) +{ + int num_contributors = stbir__get_contributors(scale_ratio, filter, input_size, output_size); + int num_coefficients = stbir__get_coefficient_width(filter, scale_ratio); + int i, j; + int skip; + + for (i = 0; i < output_size; i++) + { + float scale; + float total = 0; + + for (j = 0; j < num_contributors; j++) + { + if (i >= contributors[j].n0 && i <= contributors[j].n1) + { + float coefficient = *stbir__get_coefficient(coefficients, filter, scale_ratio, j, i - contributors[j].n0); + total += coefficient; + } + else if (i < contributors[j].n0) + break; + } + + STBIR_ASSERT(total > 0.9f); + STBIR_ASSERT(total < 1.1f); + + scale = 1 / total; + + for (j = 0; j < num_contributors; j++) + { + if (i >= contributors[j].n0 && i <= contributors[j].n1) + *stbir__get_coefficient(coefficients, filter, scale_ratio, j, i - contributors[j].n0) *= scale; + else if (i < contributors[j].n0) + break; + } + } + + // Optimize: Skip zero coefficients and contributions outside of image bounds. + // Do this after normalizing because normalization depends on the n0/n1 values. + for (j = 0; j < num_contributors; j++) + { + int range, max, width; + + skip = 0; + while (*stbir__get_coefficient(coefficients, filter, scale_ratio, j, skip) == 0) + skip++; + + contributors[j].n0 += skip; + + while (contributors[j].n0 < 0) + { + contributors[j].n0++; + skip++; + } + + range = contributors[j].n1 - contributors[j].n0 + 1; + max = stbir__min(num_coefficients, range); + + width = stbir__get_coefficient_width(filter, scale_ratio); + for (i = 0; i < max; i++) + { + if (i + skip >= width) + break; + + *stbir__get_coefficient(coefficients, filter, scale_ratio, j, i) = *stbir__get_coefficient(coefficients, filter, scale_ratio, j, i + skip); + } + + continue; + } + + // Using min to avoid writing into invalid pixels. + for (i = 0; i < num_contributors; i++) + contributors[i].n1 = stbir__min(contributors[i].n1, output_size - 1); +} + +// Each scan line uses the same kernel values so we should calculate the kernel +// values once and then we can use them for every scan line. +static void stbir__calculate_filters(stbir__contributors* contributors, float* coefficients, stbir_filter filter, float scale_ratio, float shift, int input_size, int output_size) +{ + int n; + int total_contributors = stbir__get_contributors(scale_ratio, filter, input_size, output_size); + + if (stbir__use_upsampling(scale_ratio)) + { + float out_pixels_radius = stbir__filter_info_table[filter].support(1 / scale_ratio) * scale_ratio; + + // Looping through out pixels + for (n = 0; n < total_contributors; n++) + { + float in_center_of_out; // Center of the current out pixel in the in pixel space + int in_first_pixel, in_last_pixel; + + stbir__calculate_sample_range_upsample(n, out_pixels_radius, scale_ratio, shift, &in_first_pixel, &in_last_pixel, &in_center_of_out); + + stbir__calculate_coefficients_upsample(filter, scale_ratio, in_first_pixel, in_last_pixel, in_center_of_out, stbir__get_contributor(contributors, n), stbir__get_coefficient(coefficients, filter, scale_ratio, n, 0)); + } + } + else + { + float in_pixels_radius = stbir__filter_info_table[filter].support(scale_ratio) / scale_ratio; + + // Looping through in pixels + for (n = 0; n < total_contributors; n++) + { + float out_center_of_in; // Center of the current out pixel in the in pixel space + int out_first_pixel, out_last_pixel; + int n_adjusted = n - stbir__get_filter_pixel_margin(filter, scale_ratio); + + stbir__calculate_sample_range_downsample(n_adjusted, in_pixels_radius, scale_ratio, shift, &out_first_pixel, &out_last_pixel, &out_center_of_in); + + stbir__calculate_coefficients_downsample(filter, scale_ratio, out_first_pixel, out_last_pixel, out_center_of_in, stbir__get_contributor(contributors, n), stbir__get_coefficient(coefficients, filter, scale_ratio, n, 0)); + } + + stbir__normalize_downsample_coefficients(contributors, coefficients, filter, scale_ratio, input_size, output_size); + } +} + +static float* stbir__get_decode_buffer(stbir__info* stbir_info) +{ + // The 0 index of the decode buffer starts after the margin. This makes + // it okay to use negative indexes on the decode buffer. + return &stbir_info->decode_buffer[stbir_info->horizontal_filter_pixel_margin * stbir_info->channels]; +} + +#define STBIR__DECODE(type, colorspace) ((int)(type) * (STBIR_MAX_COLORSPACES) + (int)(colorspace)) + +static void stbir__decode_scanline(stbir__info* stbir_info, int n) +{ + int c; + int channels = stbir_info->channels; + int alpha_channel = stbir_info->alpha_channel; + int type = stbir_info->type; + int colorspace = stbir_info->colorspace; + int input_w = stbir_info->input_w; + size_t input_stride_bytes = stbir_info->input_stride_bytes; + float* decode_buffer = stbir__get_decode_buffer(stbir_info); + stbir_edge edge_horizontal = stbir_info->edge_horizontal; + stbir_edge edge_vertical = stbir_info->edge_vertical; + size_t in_buffer_row_offset = stbir__edge_wrap(edge_vertical, n, stbir_info->input_h) * input_stride_bytes; + const void* input_data = (char *) stbir_info->input_data + in_buffer_row_offset; + int max_x = input_w + stbir_info->horizontal_filter_pixel_margin; + int decode = STBIR__DECODE(type, colorspace); + + int x = -stbir_info->horizontal_filter_pixel_margin; + + // special handling for STBIR_EDGE_ZERO because it needs to return an item that doesn't appear in the input, + // and we want to avoid paying overhead on every pixel if not STBIR_EDGE_ZERO + if (edge_vertical == STBIR_EDGE_ZERO && (n < 0 || n >= stbir_info->input_h)) + { + for (; x < max_x; x++) + for (c = 0; c < channels; c++) + decode_buffer[x*channels + c] = 0; + return; + } + + switch (decode) + { + case STBIR__DECODE(STBIR_TYPE_UINT8, STBIR_COLORSPACE_LINEAR): + for (; x < max_x; x++) + { + int decode_pixel_index = x * channels; + int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels; + for (c = 0; c < channels; c++) + decode_buffer[decode_pixel_index + c] = ((float)((const unsigned char*)input_data)[input_pixel_index + c]) / stbir__max_uint8_as_float; + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT8, STBIR_COLORSPACE_SRGB): + for (; x < max_x; x++) + { + int decode_pixel_index = x * channels; + int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels; + for (c = 0; c < channels; c++) + decode_buffer[decode_pixel_index + c] = stbir__srgb_uchar_to_linear_float[((const unsigned char*)input_data)[input_pixel_index + c]]; + + if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE)) + decode_buffer[decode_pixel_index + alpha_channel] = ((float)((const unsigned char*)input_data)[input_pixel_index + alpha_channel]) / stbir__max_uint8_as_float; + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT16, STBIR_COLORSPACE_LINEAR): + for (; x < max_x; x++) + { + int decode_pixel_index = x * channels; + int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels; + for (c = 0; c < channels; c++) + decode_buffer[decode_pixel_index + c] = ((float)((const unsigned short*)input_data)[input_pixel_index + c]) / stbir__max_uint16_as_float; + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT16, STBIR_COLORSPACE_SRGB): + for (; x < max_x; x++) + { + int decode_pixel_index = x * channels; + int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels; + for (c = 0; c < channels; c++) + decode_buffer[decode_pixel_index + c] = stbir__srgb_to_linear(((float)((const unsigned short*)input_data)[input_pixel_index + c]) / stbir__max_uint16_as_float); + + if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE)) + decode_buffer[decode_pixel_index + alpha_channel] = ((float)((const unsigned short*)input_data)[input_pixel_index + alpha_channel]) / stbir__max_uint16_as_float; + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT32, STBIR_COLORSPACE_LINEAR): + for (; x < max_x; x++) + { + int decode_pixel_index = x * channels; + int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels; + for (c = 0; c < channels; c++) + decode_buffer[decode_pixel_index + c] = (float)(((double)((const unsigned int*)input_data)[input_pixel_index + c]) / stbir__max_uint32_as_float); + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT32, STBIR_COLORSPACE_SRGB): + for (; x < max_x; x++) + { + int decode_pixel_index = x * channels; + int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels; + for (c = 0; c < channels; c++) + decode_buffer[decode_pixel_index + c] = stbir__srgb_to_linear((float)(((double)((const unsigned int*)input_data)[input_pixel_index + c]) / stbir__max_uint32_as_float)); + + if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE)) + decode_buffer[decode_pixel_index + alpha_channel] = (float)(((double)((const unsigned int*)input_data)[input_pixel_index + alpha_channel]) / stbir__max_uint32_as_float); + } + break; + + case STBIR__DECODE(STBIR_TYPE_FLOAT, STBIR_COLORSPACE_LINEAR): + for (; x < max_x; x++) + { + int decode_pixel_index = x * channels; + int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels; + for (c = 0; c < channels; c++) + decode_buffer[decode_pixel_index + c] = ((const float*)input_data)[input_pixel_index + c]; + } + break; + + case STBIR__DECODE(STBIR_TYPE_FLOAT, STBIR_COLORSPACE_SRGB): + for (; x < max_x; x++) + { + int decode_pixel_index = x * channels; + int input_pixel_index = stbir__edge_wrap(edge_horizontal, x, input_w) * channels; + for (c = 0; c < channels; c++) + decode_buffer[decode_pixel_index + c] = stbir__srgb_to_linear(((const float*)input_data)[input_pixel_index + c]); + + if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE)) + decode_buffer[decode_pixel_index + alpha_channel] = ((const float*)input_data)[input_pixel_index + alpha_channel]; + } + + break; + + default: + STBIR_ASSERT(!"Unknown type/colorspace/channels combination."); + break; + } + + if (!(stbir_info->flags & STBIR_FLAG_ALPHA_PREMULTIPLIED)) + { + for (x = -stbir_info->horizontal_filter_pixel_margin; x < max_x; x++) + { + int decode_pixel_index = x * channels; + + // If the alpha value is 0 it will clobber the color values. Make sure it's not. + float alpha = decode_buffer[decode_pixel_index + alpha_channel]; +#ifndef STBIR_NO_ALPHA_EPSILON + if (stbir_info->type != STBIR_TYPE_FLOAT) { + alpha += STBIR_ALPHA_EPSILON; + decode_buffer[decode_pixel_index + alpha_channel] = alpha; + } +#endif + for (c = 0; c < channels; c++) + { + if (c == alpha_channel) + continue; + + decode_buffer[decode_pixel_index + c] *= alpha; + } + } + } + + if (edge_horizontal == STBIR_EDGE_ZERO) + { + for (x = -stbir_info->horizontal_filter_pixel_margin; x < 0; x++) + { + for (c = 0; c < channels; c++) + decode_buffer[x*channels + c] = 0; + } + for (x = input_w; x < max_x; x++) + { + for (c = 0; c < channels; c++) + decode_buffer[x*channels + c] = 0; + } + } +} + +static float* stbir__get_ring_buffer_entry(float* ring_buffer, int index, int ring_buffer_length) +{ + return &ring_buffer[index * ring_buffer_length]; +} + +static float* stbir__add_empty_ring_buffer_entry(stbir__info* stbir_info, int n) +{ + int ring_buffer_index; + float* ring_buffer; + + stbir_info->ring_buffer_last_scanline = n; + + if (stbir_info->ring_buffer_begin_index < 0) + { + ring_buffer_index = stbir_info->ring_buffer_begin_index = 0; + stbir_info->ring_buffer_first_scanline = n; + } + else + { + ring_buffer_index = (stbir_info->ring_buffer_begin_index + (stbir_info->ring_buffer_last_scanline - stbir_info->ring_buffer_first_scanline)) % stbir_info->ring_buffer_num_entries; + STBIR_ASSERT(ring_buffer_index != stbir_info->ring_buffer_begin_index); + } + + ring_buffer = stbir__get_ring_buffer_entry(stbir_info->ring_buffer, ring_buffer_index, stbir_info->ring_buffer_length_bytes / sizeof(float)); + memset(ring_buffer, 0, stbir_info->ring_buffer_length_bytes); + + return ring_buffer; +} + + +static void stbir__resample_horizontal_upsample(stbir__info* stbir_info, float* output_buffer) +{ + int x, k; + int output_w = stbir_info->output_w; + int channels = stbir_info->channels; + float* decode_buffer = stbir__get_decode_buffer(stbir_info); + stbir__contributors* horizontal_contributors = stbir_info->horizontal_contributors; + float* horizontal_coefficients = stbir_info->horizontal_coefficients; + int coefficient_width = stbir_info->horizontal_coefficient_width; + + for (x = 0; x < output_w; x++) + { + int n0 = horizontal_contributors[x].n0; + int n1 = horizontal_contributors[x].n1; + + int out_pixel_index = x * channels; + int coefficient_group = coefficient_width * x; + int coefficient_counter = 0; + + STBIR_ASSERT(n1 >= n0); + STBIR_ASSERT(n0 >= -stbir_info->horizontal_filter_pixel_margin); + STBIR_ASSERT(n1 >= -stbir_info->horizontal_filter_pixel_margin); + STBIR_ASSERT(n0 < stbir_info->input_w + stbir_info->horizontal_filter_pixel_margin); + STBIR_ASSERT(n1 < stbir_info->input_w + stbir_info->horizontal_filter_pixel_margin); + + switch (channels) { + case 1: + for (k = n0; k <= n1; k++) + { + int in_pixel_index = k * 1; + float coefficient = horizontal_coefficients[coefficient_group + coefficient_counter++]; + STBIR_ASSERT(coefficient != 0); + output_buffer[out_pixel_index + 0] += decode_buffer[in_pixel_index + 0] * coefficient; + } + break; + case 2: + for (k = n0; k <= n1; k++) + { + int in_pixel_index = k * 2; + float coefficient = horizontal_coefficients[coefficient_group + coefficient_counter++]; + STBIR_ASSERT(coefficient != 0); + output_buffer[out_pixel_index + 0] += decode_buffer[in_pixel_index + 0] * coefficient; + output_buffer[out_pixel_index + 1] += decode_buffer[in_pixel_index + 1] * coefficient; + } + break; + case 3: + for (k = n0; k <= n1; k++) + { + int in_pixel_index = k * 3; + float coefficient = horizontal_coefficients[coefficient_group + coefficient_counter++]; + STBIR_ASSERT(coefficient != 0); + output_buffer[out_pixel_index + 0] += decode_buffer[in_pixel_index + 0] * coefficient; + output_buffer[out_pixel_index + 1] += decode_buffer[in_pixel_index + 1] * coefficient; + output_buffer[out_pixel_index + 2] += decode_buffer[in_pixel_index + 2] * coefficient; + } + break; + case 4: + for (k = n0; k <= n1; k++) + { + int in_pixel_index = k * 4; + float coefficient = horizontal_coefficients[coefficient_group + coefficient_counter++]; + STBIR_ASSERT(coefficient != 0); + output_buffer[out_pixel_index + 0] += decode_buffer[in_pixel_index + 0] * coefficient; + output_buffer[out_pixel_index + 1] += decode_buffer[in_pixel_index + 1] * coefficient; + output_buffer[out_pixel_index + 2] += decode_buffer[in_pixel_index + 2] * coefficient; + output_buffer[out_pixel_index + 3] += decode_buffer[in_pixel_index + 3] * coefficient; + } + break; + default: + for (k = n0; k <= n1; k++) + { + int in_pixel_index = k * channels; + float coefficient = horizontal_coefficients[coefficient_group + coefficient_counter++]; + int c; + STBIR_ASSERT(coefficient != 0); + for (c = 0; c < channels; c++) + output_buffer[out_pixel_index + c] += decode_buffer[in_pixel_index + c] * coefficient; + } + break; + } + } +} + +static void stbir__resample_horizontal_downsample(stbir__info* stbir_info, float* output_buffer) +{ + int x, k; + int input_w = stbir_info->input_w; + int channels = stbir_info->channels; + float* decode_buffer = stbir__get_decode_buffer(stbir_info); + stbir__contributors* horizontal_contributors = stbir_info->horizontal_contributors; + float* horizontal_coefficients = stbir_info->horizontal_coefficients; + int coefficient_width = stbir_info->horizontal_coefficient_width; + int filter_pixel_margin = stbir_info->horizontal_filter_pixel_margin; + int max_x = input_w + filter_pixel_margin * 2; + + STBIR_ASSERT(!stbir__use_width_upsampling(stbir_info)); + + switch (channels) { + case 1: + for (x = 0; x < max_x; x++) + { + int n0 = horizontal_contributors[x].n0; + int n1 = horizontal_contributors[x].n1; + + int in_x = x - filter_pixel_margin; + int in_pixel_index = in_x * 1; + int max_n = n1; + int coefficient_group = coefficient_width * x; + + for (k = n0; k <= max_n; k++) + { + int out_pixel_index = k * 1; + float coefficient = horizontal_coefficients[coefficient_group + k - n0]; + STBIR_ASSERT(coefficient != 0); + output_buffer[out_pixel_index + 0] += decode_buffer[in_pixel_index + 0] * coefficient; + } + } + break; + + case 2: + for (x = 0; x < max_x; x++) + { + int n0 = horizontal_contributors[x].n0; + int n1 = horizontal_contributors[x].n1; + + int in_x = x - filter_pixel_margin; + int in_pixel_index = in_x * 2; + int max_n = n1; + int coefficient_group = coefficient_width * x; + + for (k = n0; k <= max_n; k++) + { + int out_pixel_index = k * 2; + float coefficient = horizontal_coefficients[coefficient_group + k - n0]; + STBIR_ASSERT(coefficient != 0); + output_buffer[out_pixel_index + 0] += decode_buffer[in_pixel_index + 0] * coefficient; + output_buffer[out_pixel_index + 1] += decode_buffer[in_pixel_index + 1] * coefficient; + } + } + break; + + case 3: + for (x = 0; x < max_x; x++) + { + int n0 = horizontal_contributors[x].n0; + int n1 = horizontal_contributors[x].n1; + + int in_x = x - filter_pixel_margin; + int in_pixel_index = in_x * 3; + int max_n = n1; + int coefficient_group = coefficient_width * x; + + for (k = n0; k <= max_n; k++) + { + int out_pixel_index = k * 3; + float coefficient = horizontal_coefficients[coefficient_group + k - n0]; + STBIR_ASSERT(coefficient != 0); + output_buffer[out_pixel_index + 0] += decode_buffer[in_pixel_index + 0] * coefficient; + output_buffer[out_pixel_index + 1] += decode_buffer[in_pixel_index + 1] * coefficient; + output_buffer[out_pixel_index + 2] += decode_buffer[in_pixel_index + 2] * coefficient; + } + } + break; + + case 4: + for (x = 0; x < max_x; x++) + { + int n0 = horizontal_contributors[x].n0; + int n1 = horizontal_contributors[x].n1; + + int in_x = x - filter_pixel_margin; + int in_pixel_index = in_x * 4; + int max_n = n1; + int coefficient_group = coefficient_width * x; + + for (k = n0; k <= max_n; k++) + { + int out_pixel_index = k * 4; + float coefficient = horizontal_coefficients[coefficient_group + k - n0]; + STBIR_ASSERT(coefficient != 0); + output_buffer[out_pixel_index + 0] += decode_buffer[in_pixel_index + 0] * coefficient; + output_buffer[out_pixel_index + 1] += decode_buffer[in_pixel_index + 1] * coefficient; + output_buffer[out_pixel_index + 2] += decode_buffer[in_pixel_index + 2] * coefficient; + output_buffer[out_pixel_index + 3] += decode_buffer[in_pixel_index + 3] * coefficient; + } + } + break; + + default: + for (x = 0; x < max_x; x++) + { + int n0 = horizontal_contributors[x].n0; + int n1 = horizontal_contributors[x].n1; + + int in_x = x - filter_pixel_margin; + int in_pixel_index = in_x * channels; + int max_n = n1; + int coefficient_group = coefficient_width * x; + + for (k = n0; k <= max_n; k++) + { + int c; + int out_pixel_index = k * channels; + float coefficient = horizontal_coefficients[coefficient_group + k - n0]; + STBIR_ASSERT(coefficient != 0); + for (c = 0; c < channels; c++) + output_buffer[out_pixel_index + c] += decode_buffer[in_pixel_index + c] * coefficient; + } + } + break; + } +} + +static void stbir__decode_and_resample_upsample(stbir__info* stbir_info, int n) +{ + // Decode the nth scanline from the source image into the decode buffer. + stbir__decode_scanline(stbir_info, n); + + // Now resample it into the ring buffer. + if (stbir__use_width_upsampling(stbir_info)) + stbir__resample_horizontal_upsample(stbir_info, stbir__add_empty_ring_buffer_entry(stbir_info, n)); + else + stbir__resample_horizontal_downsample(stbir_info, stbir__add_empty_ring_buffer_entry(stbir_info, n)); + + // Now it's sitting in the ring buffer ready to be used as source for the vertical sampling. +} + +static void stbir__decode_and_resample_downsample(stbir__info* stbir_info, int n) +{ + // Decode the nth scanline from the source image into the decode buffer. + stbir__decode_scanline(stbir_info, n); + + memset(stbir_info->horizontal_buffer, 0, stbir_info->output_w * stbir_info->channels * sizeof(float)); + + // Now resample it into the horizontal buffer. + if (stbir__use_width_upsampling(stbir_info)) + stbir__resample_horizontal_upsample(stbir_info, stbir_info->horizontal_buffer); + else + stbir__resample_horizontal_downsample(stbir_info, stbir_info->horizontal_buffer); + + // Now it's sitting in the horizontal buffer ready to be distributed into the ring buffers. +} + +// Get the specified scan line from the ring buffer. +static float* stbir__get_ring_buffer_scanline(int get_scanline, float* ring_buffer, int begin_index, int first_scanline, int ring_buffer_num_entries, int ring_buffer_length) +{ + int ring_buffer_index = (begin_index + (get_scanline - first_scanline)) % ring_buffer_num_entries; + return stbir__get_ring_buffer_entry(ring_buffer, ring_buffer_index, ring_buffer_length); +} + + +static void stbir__encode_scanline(stbir__info* stbir_info, int num_pixels, void *output_buffer, float *encode_buffer, int channels, int alpha_channel, int decode) +{ + int x; + int n; + int num_nonalpha; + stbir_uint16 nonalpha[STBIR_MAX_CHANNELS]; + + if (!(stbir_info->flags&STBIR_FLAG_ALPHA_PREMULTIPLIED)) + { + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + float alpha = encode_buffer[pixel_index + alpha_channel]; + float reciprocal_alpha = alpha ? 1.0f / alpha : 0; + + // unrolling this produced a 1% slowdown upscaling a large RGBA linear-space image on my machine - stb + for (n = 0; n < channels; n++) + if (n != alpha_channel) + encode_buffer[pixel_index + n] *= reciprocal_alpha; + + // We added in a small epsilon to prevent the color channel from being deleted with zero alpha. + // Because we only add it for integer types, it will automatically be discarded on integer + // conversion, so we don't need to subtract it back out (which would be problematic for + // numeric precision reasons). + } + } + + // build a table of all channels that need colorspace correction, so + // we don't perform colorspace correction on channels that don't need it. + for (x = 0, num_nonalpha = 0; x < channels; ++x) + { + if (x != alpha_channel || (stbir_info->flags & STBIR_FLAG_ALPHA_USES_COLORSPACE)) + { + nonalpha[num_nonalpha++] = (stbir_uint16)x; + } + } + + #define STBIR__ROUND_INT(f) ((int) ((f)+0.5)) + #define STBIR__ROUND_UINT(f) ((stbir_uint32) ((f)+0.5)) + + #ifdef STBIR__SATURATE_INT + #define STBIR__ENCODE_LINEAR8(f) stbir__saturate8 (STBIR__ROUND_INT((f) * stbir__max_uint8_as_float )) + #define STBIR__ENCODE_LINEAR16(f) stbir__saturate16(STBIR__ROUND_INT((f) * stbir__max_uint16_as_float)) + #else + #define STBIR__ENCODE_LINEAR8(f) (unsigned char ) STBIR__ROUND_INT(stbir__saturate(f) * stbir__max_uint8_as_float ) + #define STBIR__ENCODE_LINEAR16(f) (unsigned short) STBIR__ROUND_INT(stbir__saturate(f) * stbir__max_uint16_as_float) + #endif + + switch (decode) + { + case STBIR__DECODE(STBIR_TYPE_UINT8, STBIR_COLORSPACE_LINEAR): + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + for (n = 0; n < channels; n++) + { + int index = pixel_index + n; + ((unsigned char*)output_buffer)[index] = STBIR__ENCODE_LINEAR8(encode_buffer[index]); + } + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT8, STBIR_COLORSPACE_SRGB): + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + for (n = 0; n < num_nonalpha; n++) + { + int index = pixel_index + nonalpha[n]; + ((unsigned char*)output_buffer)[index] = stbir__linear_to_srgb_uchar(encode_buffer[index]); + } + + if (!(stbir_info->flags & STBIR_FLAG_ALPHA_USES_COLORSPACE)) + ((unsigned char *)output_buffer)[pixel_index + alpha_channel] = STBIR__ENCODE_LINEAR8(encode_buffer[pixel_index+alpha_channel]); + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT16, STBIR_COLORSPACE_LINEAR): + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + for (n = 0; n < channels; n++) + { + int index = pixel_index + n; + ((unsigned short*)output_buffer)[index] = STBIR__ENCODE_LINEAR16(encode_buffer[index]); + } + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT16, STBIR_COLORSPACE_SRGB): + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + for (n = 0; n < num_nonalpha; n++) + { + int index = pixel_index + nonalpha[n]; + ((unsigned short*)output_buffer)[index] = (unsigned short)STBIR__ROUND_INT(stbir__linear_to_srgb(stbir__saturate(encode_buffer[index])) * stbir__max_uint16_as_float); + } + + if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE)) + ((unsigned short*)output_buffer)[pixel_index + alpha_channel] = STBIR__ENCODE_LINEAR16(encode_buffer[pixel_index + alpha_channel]); + } + + break; + + case STBIR__DECODE(STBIR_TYPE_UINT32, STBIR_COLORSPACE_LINEAR): + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + for (n = 0; n < channels; n++) + { + int index = pixel_index + n; + ((unsigned int*)output_buffer)[index] = (unsigned int)STBIR__ROUND_UINT(((double)stbir__saturate(encode_buffer[index])) * stbir__max_uint32_as_float); + } + } + break; + + case STBIR__DECODE(STBIR_TYPE_UINT32, STBIR_COLORSPACE_SRGB): + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + for (n = 0; n < num_nonalpha; n++) + { + int index = pixel_index + nonalpha[n]; + ((unsigned int*)output_buffer)[index] = (unsigned int)STBIR__ROUND_UINT(((double)stbir__linear_to_srgb(stbir__saturate(encode_buffer[index]))) * stbir__max_uint32_as_float); + } + + if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE)) + ((unsigned int*)output_buffer)[pixel_index + alpha_channel] = (unsigned int)STBIR__ROUND_INT(((double)stbir__saturate(encode_buffer[pixel_index + alpha_channel])) * stbir__max_uint32_as_float); + } + break; + + case STBIR__DECODE(STBIR_TYPE_FLOAT, STBIR_COLORSPACE_LINEAR): + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + for (n = 0; n < channels; n++) + { + int index = pixel_index + n; + ((float*)output_buffer)[index] = encode_buffer[index]; + } + } + break; + + case STBIR__DECODE(STBIR_TYPE_FLOAT, STBIR_COLORSPACE_SRGB): + for (x=0; x < num_pixels; ++x) + { + int pixel_index = x*channels; + + for (n = 0; n < num_nonalpha; n++) + { + int index = pixel_index + nonalpha[n]; + ((float*)output_buffer)[index] = stbir__linear_to_srgb(encode_buffer[index]); + } + + if (!(stbir_info->flags&STBIR_FLAG_ALPHA_USES_COLORSPACE)) + ((float*)output_buffer)[pixel_index + alpha_channel] = encode_buffer[pixel_index + alpha_channel]; + } + break; + + default: + STBIR_ASSERT(!"Unknown type/colorspace/channels combination."); + break; + } +} + +static void stbir__resample_vertical_upsample(stbir__info* stbir_info, int n) +{ + int x, k; + int output_w = stbir_info->output_w; + stbir__contributors* vertical_contributors = stbir_info->vertical_contributors; + float* vertical_coefficients = stbir_info->vertical_coefficients; + int channels = stbir_info->channels; + int alpha_channel = stbir_info->alpha_channel; + int type = stbir_info->type; + int colorspace = stbir_info->colorspace; + int ring_buffer_entries = stbir_info->ring_buffer_num_entries; + void* output_data = stbir_info->output_data; + float* encode_buffer = stbir_info->encode_buffer; + int decode = STBIR__DECODE(type, colorspace); + int coefficient_width = stbir_info->vertical_coefficient_width; + int coefficient_counter; + int contributor = n; + + float* ring_buffer = stbir_info->ring_buffer; + int ring_buffer_begin_index = stbir_info->ring_buffer_begin_index; + int ring_buffer_first_scanline = stbir_info->ring_buffer_first_scanline; + int ring_buffer_length = stbir_info->ring_buffer_length_bytes/sizeof(float); + + int n0,n1, output_row_start; + int coefficient_group = coefficient_width * contributor; + + n0 = vertical_contributors[contributor].n0; + n1 = vertical_contributors[contributor].n1; + + output_row_start = n * stbir_info->output_stride_bytes; + + STBIR_ASSERT(stbir__use_height_upsampling(stbir_info)); + + memset(encode_buffer, 0, output_w * sizeof(float) * channels); + + // I tried reblocking this for better cache usage of encode_buffer + // (using x_outer, k, x_inner), but it lost speed. -- stb + + coefficient_counter = 0; + switch (channels) { + case 1: + for (k = n0; k <= n1; k++) + { + int coefficient_index = coefficient_counter++; + float* ring_buffer_entry = stbir__get_ring_buffer_scanline(k, ring_buffer, ring_buffer_begin_index, ring_buffer_first_scanline, ring_buffer_entries, ring_buffer_length); + float coefficient = vertical_coefficients[coefficient_group + coefficient_index]; + for (x = 0; x < output_w; ++x) + { + int in_pixel_index = x * 1; + encode_buffer[in_pixel_index + 0] += ring_buffer_entry[in_pixel_index + 0] * coefficient; + } + } + break; + case 2: + for (k = n0; k <= n1; k++) + { + int coefficient_index = coefficient_counter++; + float* ring_buffer_entry = stbir__get_ring_buffer_scanline(k, ring_buffer, ring_buffer_begin_index, ring_buffer_first_scanline, ring_buffer_entries, ring_buffer_length); + float coefficient = vertical_coefficients[coefficient_group + coefficient_index]; + for (x = 0; x < output_w; ++x) + { + int in_pixel_index = x * 2; + encode_buffer[in_pixel_index + 0] += ring_buffer_entry[in_pixel_index + 0] * coefficient; + encode_buffer[in_pixel_index + 1] += ring_buffer_entry[in_pixel_index + 1] * coefficient; + } + } + break; + case 3: + for (k = n0; k <= n1; k++) + { + int coefficient_index = coefficient_counter++; + float* ring_buffer_entry = stbir__get_ring_buffer_scanline(k, ring_buffer, ring_buffer_begin_index, ring_buffer_first_scanline, ring_buffer_entries, ring_buffer_length); + float coefficient = vertical_coefficients[coefficient_group + coefficient_index]; + for (x = 0; x < output_w; ++x) + { + int in_pixel_index = x * 3; + encode_buffer[in_pixel_index + 0] += ring_buffer_entry[in_pixel_index + 0] * coefficient; + encode_buffer[in_pixel_index + 1] += ring_buffer_entry[in_pixel_index + 1] * coefficient; + encode_buffer[in_pixel_index + 2] += ring_buffer_entry[in_pixel_index + 2] * coefficient; + } + } + break; + case 4: + for (k = n0; k <= n1; k++) + { + int coefficient_index = coefficient_counter++; + float* ring_buffer_entry = stbir__get_ring_buffer_scanline(k, ring_buffer, ring_buffer_begin_index, ring_buffer_first_scanline, ring_buffer_entries, ring_buffer_length); + float coefficient = vertical_coefficients[coefficient_group + coefficient_index]; + for (x = 0; x < output_w; ++x) + { + int in_pixel_index = x * 4; + encode_buffer[in_pixel_index + 0] += ring_buffer_entry[in_pixel_index + 0] * coefficient; + encode_buffer[in_pixel_index + 1] += ring_buffer_entry[in_pixel_index + 1] * coefficient; + encode_buffer[in_pixel_index + 2] += ring_buffer_entry[in_pixel_index + 2] * coefficient; + encode_buffer[in_pixel_index + 3] += ring_buffer_entry[in_pixel_index + 3] * coefficient; + } + } + break; + default: + for (k = n0; k <= n1; k++) + { + int coefficient_index = coefficient_counter++; + float* ring_buffer_entry = stbir__get_ring_buffer_scanline(k, ring_buffer, ring_buffer_begin_index, ring_buffer_first_scanline, ring_buffer_entries, ring_buffer_length); + float coefficient = vertical_coefficients[coefficient_group + coefficient_index]; + for (x = 0; x < output_w; ++x) + { + int in_pixel_index = x * channels; + int c; + for (c = 0; c < channels; c++) + encode_buffer[in_pixel_index + c] += ring_buffer_entry[in_pixel_index + c] * coefficient; + } + } + break; + } + stbir__encode_scanline(stbir_info, output_w, (char *) output_data + output_row_start, encode_buffer, channels, alpha_channel, decode); +} + +static void stbir__resample_vertical_downsample(stbir__info* stbir_info, int n) +{ + int x, k; + int output_w = stbir_info->output_w; + stbir__contributors* vertical_contributors = stbir_info->vertical_contributors; + float* vertical_coefficients = stbir_info->vertical_coefficients; + int channels = stbir_info->channels; + int ring_buffer_entries = stbir_info->ring_buffer_num_entries; + float* horizontal_buffer = stbir_info->horizontal_buffer; + int coefficient_width = stbir_info->vertical_coefficient_width; + int contributor = n + stbir_info->vertical_filter_pixel_margin; + + float* ring_buffer = stbir_info->ring_buffer; + int ring_buffer_begin_index = stbir_info->ring_buffer_begin_index; + int ring_buffer_first_scanline = stbir_info->ring_buffer_first_scanline; + int ring_buffer_length = stbir_info->ring_buffer_length_bytes/sizeof(float); + int n0,n1; + + n0 = vertical_contributors[contributor].n0; + n1 = vertical_contributors[contributor].n1; + + STBIR_ASSERT(!stbir__use_height_upsampling(stbir_info)); + + for (k = n0; k <= n1; k++) + { + int coefficient_index = k - n0; + int coefficient_group = coefficient_width * contributor; + float coefficient = vertical_coefficients[coefficient_group + coefficient_index]; + + float* ring_buffer_entry = stbir__get_ring_buffer_scanline(k, ring_buffer, ring_buffer_begin_index, ring_buffer_first_scanline, ring_buffer_entries, ring_buffer_length); + + switch (channels) { + case 1: + for (x = 0; x < output_w; x++) + { + int in_pixel_index = x * 1; + ring_buffer_entry[in_pixel_index + 0] += horizontal_buffer[in_pixel_index + 0] * coefficient; + } + break; + case 2: + for (x = 0; x < output_w; x++) + { + int in_pixel_index = x * 2; + ring_buffer_entry[in_pixel_index + 0] += horizontal_buffer[in_pixel_index + 0] * coefficient; + ring_buffer_entry[in_pixel_index + 1] += horizontal_buffer[in_pixel_index + 1] * coefficient; + } + break; + case 3: + for (x = 0; x < output_w; x++) + { + int in_pixel_index = x * 3; + ring_buffer_entry[in_pixel_index + 0] += horizontal_buffer[in_pixel_index + 0] * coefficient; + ring_buffer_entry[in_pixel_index + 1] += horizontal_buffer[in_pixel_index + 1] * coefficient; + ring_buffer_entry[in_pixel_index + 2] += horizontal_buffer[in_pixel_index + 2] * coefficient; + } + break; + case 4: + for (x = 0; x < output_w; x++) + { + int in_pixel_index = x * 4; + ring_buffer_entry[in_pixel_index + 0] += horizontal_buffer[in_pixel_index + 0] * coefficient; + ring_buffer_entry[in_pixel_index + 1] += horizontal_buffer[in_pixel_index + 1] * coefficient; + ring_buffer_entry[in_pixel_index + 2] += horizontal_buffer[in_pixel_index + 2] * coefficient; + ring_buffer_entry[in_pixel_index + 3] += horizontal_buffer[in_pixel_index + 3] * coefficient; + } + break; + default: + for (x = 0; x < output_w; x++) + { + int in_pixel_index = x * channels; + + int c; + for (c = 0; c < channels; c++) + ring_buffer_entry[in_pixel_index + c] += horizontal_buffer[in_pixel_index + c] * coefficient; + } + break; + } + } +} + +static void stbir__buffer_loop_upsample(stbir__info* stbir_info) +{ + int y; + float scale_ratio = stbir_info->vertical_scale; + float out_scanlines_radius = stbir__filter_info_table[stbir_info->vertical_filter].support(1/scale_ratio) * scale_ratio; + + STBIR_ASSERT(stbir__use_height_upsampling(stbir_info)); + + for (y = 0; y < stbir_info->output_h; y++) + { + float in_center_of_out = 0; // Center of the current out scanline in the in scanline space + int in_first_scanline = 0, in_last_scanline = 0; + + stbir__calculate_sample_range_upsample(y, out_scanlines_radius, scale_ratio, stbir_info->vertical_shift, &in_first_scanline, &in_last_scanline, &in_center_of_out); + + STBIR_ASSERT(in_last_scanline - in_first_scanline + 1 <= stbir_info->ring_buffer_num_entries); + + if (stbir_info->ring_buffer_begin_index >= 0) + { + // Get rid of whatever we don't need anymore. + while (in_first_scanline > stbir_info->ring_buffer_first_scanline) + { + if (stbir_info->ring_buffer_first_scanline == stbir_info->ring_buffer_last_scanline) + { + // We just popped the last scanline off the ring buffer. + // Reset it to the empty state. + stbir_info->ring_buffer_begin_index = -1; + stbir_info->ring_buffer_first_scanline = 0; + stbir_info->ring_buffer_last_scanline = 0; + break; + } + else + { + stbir_info->ring_buffer_first_scanline++; + stbir_info->ring_buffer_begin_index = (stbir_info->ring_buffer_begin_index + 1) % stbir_info->ring_buffer_num_entries; + } + } + } + + // Load in new ones. + if (stbir_info->ring_buffer_begin_index < 0) + stbir__decode_and_resample_upsample(stbir_info, in_first_scanline); + + while (in_last_scanline > stbir_info->ring_buffer_last_scanline) + stbir__decode_and_resample_upsample(stbir_info, stbir_info->ring_buffer_last_scanline + 1); + + // Now all buffers should be ready to write a row of vertical sampling. + stbir__resample_vertical_upsample(stbir_info, y); + + STBIR_PROGRESS_REPORT((float)y / stbir_info->output_h); + } +} + +static void stbir__empty_ring_buffer(stbir__info* stbir_info, int first_necessary_scanline) +{ + int output_stride_bytes = stbir_info->output_stride_bytes; + int channels = stbir_info->channels; + int alpha_channel = stbir_info->alpha_channel; + int type = stbir_info->type; + int colorspace = stbir_info->colorspace; + int output_w = stbir_info->output_w; + void* output_data = stbir_info->output_data; + int decode = STBIR__DECODE(type, colorspace); + + float* ring_buffer = stbir_info->ring_buffer; + int ring_buffer_length = stbir_info->ring_buffer_length_bytes/sizeof(float); + + if (stbir_info->ring_buffer_begin_index >= 0) + { + // Get rid of whatever we don't need anymore. + while (first_necessary_scanline > stbir_info->ring_buffer_first_scanline) + { + if (stbir_info->ring_buffer_first_scanline >= 0 && stbir_info->ring_buffer_first_scanline < stbir_info->output_h) + { + int output_row_start = stbir_info->ring_buffer_first_scanline * output_stride_bytes; + float* ring_buffer_entry = stbir__get_ring_buffer_entry(ring_buffer, stbir_info->ring_buffer_begin_index, ring_buffer_length); + stbir__encode_scanline(stbir_info, output_w, (char *) output_data + output_row_start, ring_buffer_entry, channels, alpha_channel, decode); + STBIR_PROGRESS_REPORT((float)stbir_info->ring_buffer_first_scanline / stbir_info->output_h); + } + + if (stbir_info->ring_buffer_first_scanline == stbir_info->ring_buffer_last_scanline) + { + // We just popped the last scanline off the ring buffer. + // Reset it to the empty state. + stbir_info->ring_buffer_begin_index = -1; + stbir_info->ring_buffer_first_scanline = 0; + stbir_info->ring_buffer_last_scanline = 0; + break; + } + else + { + stbir_info->ring_buffer_first_scanline++; + stbir_info->ring_buffer_begin_index = (stbir_info->ring_buffer_begin_index + 1) % stbir_info->ring_buffer_num_entries; + } + } + } +} + +static void stbir__buffer_loop_downsample(stbir__info* stbir_info) +{ + int y; + float scale_ratio = stbir_info->vertical_scale; + int output_h = stbir_info->output_h; + float in_pixels_radius = stbir__filter_info_table[stbir_info->vertical_filter].support(scale_ratio) / scale_ratio; + int pixel_margin = stbir_info->vertical_filter_pixel_margin; + int max_y = stbir_info->input_h + pixel_margin; + + STBIR_ASSERT(!stbir__use_height_upsampling(stbir_info)); + + for (y = -pixel_margin; y < max_y; y++) + { + float out_center_of_in; // Center of the current out scanline in the in scanline space + int out_first_scanline, out_last_scanline; + + stbir__calculate_sample_range_downsample(y, in_pixels_radius, scale_ratio, stbir_info->vertical_shift, &out_first_scanline, &out_last_scanline, &out_center_of_in); + + STBIR_ASSERT(out_last_scanline - out_first_scanline + 1 <= stbir_info->ring_buffer_num_entries); + + if (out_last_scanline < 0 || out_first_scanline >= output_h) + continue; + + stbir__empty_ring_buffer(stbir_info, out_first_scanline); + + stbir__decode_and_resample_downsample(stbir_info, y); + + // Load in new ones. + if (stbir_info->ring_buffer_begin_index < 0) + stbir__add_empty_ring_buffer_entry(stbir_info, out_first_scanline); + + while (out_last_scanline > stbir_info->ring_buffer_last_scanline) + stbir__add_empty_ring_buffer_entry(stbir_info, stbir_info->ring_buffer_last_scanline + 1); + + // Now the horizontal buffer is ready to write to all ring buffer rows. + stbir__resample_vertical_downsample(stbir_info, y); + } + + stbir__empty_ring_buffer(stbir_info, stbir_info->output_h); +} + +static void stbir__setup(stbir__info *info, int input_w, int input_h, int output_w, int output_h, int channels) +{ + info->input_w = input_w; + info->input_h = input_h; + info->output_w = output_w; + info->output_h = output_h; + info->channels = channels; +} + +static void stbir__calculate_transform(stbir__info *info, float s0, float t0, float s1, float t1, float *transform) +{ + info->s0 = s0; + info->t0 = t0; + info->s1 = s1; + info->t1 = t1; + + if (transform) + { + info->horizontal_scale = transform[0]; + info->vertical_scale = transform[1]; + info->horizontal_shift = transform[2]; + info->vertical_shift = transform[3]; + } + else + { + info->horizontal_scale = ((float)info->output_w / info->input_w) / (s1 - s0); + info->vertical_scale = ((float)info->output_h / info->input_h) / (t1 - t0); + + info->horizontal_shift = s0 * info->output_w / (s1 - s0); + info->vertical_shift = t0 * info->output_h / (t1 - t0); + } +} + +static void stbir__choose_filter(stbir__info *info, stbir_filter h_filter, stbir_filter v_filter) +{ + if (h_filter == 0) + h_filter = stbir__use_upsampling(info->horizontal_scale) ? STBIR_DEFAULT_FILTER_UPSAMPLE : STBIR_DEFAULT_FILTER_DOWNSAMPLE; + if (v_filter == 0) + v_filter = stbir__use_upsampling(info->vertical_scale) ? STBIR_DEFAULT_FILTER_UPSAMPLE : STBIR_DEFAULT_FILTER_DOWNSAMPLE; + info->horizontal_filter = h_filter; + info->vertical_filter = v_filter; +} + +static stbir_uint32 stbir__calculate_memory(stbir__info *info) +{ + int pixel_margin = stbir__get_filter_pixel_margin(info->horizontal_filter, info->horizontal_scale); + int filter_height = stbir__get_filter_pixel_width(info->vertical_filter, info->vertical_scale); + + info->horizontal_num_contributors = stbir__get_contributors(info->horizontal_scale, info->horizontal_filter, info->input_w, info->output_w); + info->vertical_num_contributors = stbir__get_contributors(info->vertical_scale , info->vertical_filter , info->input_h, info->output_h); + + // One extra entry because floating point precision problems sometimes cause an extra to be necessary. + info->ring_buffer_num_entries = filter_height + 1; + + info->horizontal_contributors_size = info->horizontal_num_contributors * sizeof(stbir__contributors); + info->horizontal_coefficients_size = stbir__get_total_horizontal_coefficients(info) * sizeof(float); + info->vertical_contributors_size = info->vertical_num_contributors * sizeof(stbir__contributors); + info->vertical_coefficients_size = stbir__get_total_vertical_coefficients(info) * sizeof(float); + info->decode_buffer_size = (info->input_w + pixel_margin * 2) * info->channels * sizeof(float); + info->horizontal_buffer_size = info->output_w * info->channels * sizeof(float); + info->ring_buffer_size = info->output_w * info->channels * info->ring_buffer_num_entries * sizeof(float); + info->encode_buffer_size = info->output_w * info->channels * sizeof(float); + + STBIR_ASSERT(info->horizontal_filter != 0); + STBIR_ASSERT(info->horizontal_filter < STBIR__ARRAY_SIZE(stbir__filter_info_table)); // this now happens too late + STBIR_ASSERT(info->vertical_filter != 0); + STBIR_ASSERT(info->vertical_filter < STBIR__ARRAY_SIZE(stbir__filter_info_table)); // this now happens too late + + if (stbir__use_height_upsampling(info)) + // The horizontal buffer is for when we're downsampling the height and we + // can't output the result of sampling the decode buffer directly into the + // ring buffers. + info->horizontal_buffer_size = 0; + else + // The encode buffer is to retain precision in the height upsampling method + // and isn't used when height downsampling. + info->encode_buffer_size = 0; + + return info->horizontal_contributors_size + info->horizontal_coefficients_size + + info->vertical_contributors_size + info->vertical_coefficients_size + + info->decode_buffer_size + info->horizontal_buffer_size + + info->ring_buffer_size + info->encode_buffer_size; +} + +static int stbir__resize_allocated(stbir__info *info, + const void* input_data, int input_stride_in_bytes, + void* output_data, int output_stride_in_bytes, + int alpha_channel, stbir_uint32 flags, stbir_datatype type, + stbir_edge edge_horizontal, stbir_edge edge_vertical, stbir_colorspace colorspace, + void* tempmem, size_t tempmem_size_in_bytes) +{ + size_t memory_required = stbir__calculate_memory(info); + + int width_stride_input = input_stride_in_bytes ? input_stride_in_bytes : info->channels * info->input_w * stbir__type_size[type]; + int width_stride_output = output_stride_in_bytes ? output_stride_in_bytes : info->channels * info->output_w * stbir__type_size[type]; + +#ifdef STBIR_DEBUG_OVERWRITE_TEST +#define OVERWRITE_ARRAY_SIZE 8 + unsigned char overwrite_output_before_pre[OVERWRITE_ARRAY_SIZE]; + unsigned char overwrite_tempmem_before_pre[OVERWRITE_ARRAY_SIZE]; + unsigned char overwrite_output_after_pre[OVERWRITE_ARRAY_SIZE]; + unsigned char overwrite_tempmem_after_pre[OVERWRITE_ARRAY_SIZE]; + + size_t begin_forbidden = width_stride_output * (info->output_h - 1) + info->output_w * info->channels * stbir__type_size[type]; + memcpy(overwrite_output_before_pre, &((unsigned char*)output_data)[-OVERWRITE_ARRAY_SIZE], OVERWRITE_ARRAY_SIZE); + memcpy(overwrite_output_after_pre, &((unsigned char*)output_data)[begin_forbidden], OVERWRITE_ARRAY_SIZE); + memcpy(overwrite_tempmem_before_pre, &((unsigned char*)tempmem)[-OVERWRITE_ARRAY_SIZE], OVERWRITE_ARRAY_SIZE); + memcpy(overwrite_tempmem_after_pre, &((unsigned char*)tempmem)[tempmem_size_in_bytes], OVERWRITE_ARRAY_SIZE); +#endif + + STBIR_ASSERT(info->channels >= 0); + STBIR_ASSERT(info->channels <= STBIR_MAX_CHANNELS); + + if (info->channels < 0 || info->channels > STBIR_MAX_CHANNELS) + return 0; + + STBIR_ASSERT(info->horizontal_filter < STBIR__ARRAY_SIZE(stbir__filter_info_table)); + STBIR_ASSERT(info->vertical_filter < STBIR__ARRAY_SIZE(stbir__filter_info_table)); + + if (info->horizontal_filter >= STBIR__ARRAY_SIZE(stbir__filter_info_table)) + return 0; + if (info->vertical_filter >= STBIR__ARRAY_SIZE(stbir__filter_info_table)) + return 0; + + if (alpha_channel < 0) + flags |= STBIR_FLAG_ALPHA_USES_COLORSPACE | STBIR_FLAG_ALPHA_PREMULTIPLIED; + + if (!(flags&STBIR_FLAG_ALPHA_USES_COLORSPACE) || !(flags&STBIR_FLAG_ALPHA_PREMULTIPLIED)) { + STBIR_ASSERT(alpha_channel >= 0 && alpha_channel < info->channels); + } + + if (alpha_channel >= info->channels) + return 0; + + STBIR_ASSERT(tempmem); + + if (!tempmem) + return 0; + + STBIR_ASSERT(tempmem_size_in_bytes >= memory_required); + + if (tempmem_size_in_bytes < memory_required) + return 0; + + memset(tempmem, 0, tempmem_size_in_bytes); + + info->input_data = input_data; + info->input_stride_bytes = width_stride_input; + + info->output_data = output_data; + info->output_stride_bytes = width_stride_output; + + info->alpha_channel = alpha_channel; + info->flags = flags; + info->type = type; + info->edge_horizontal = edge_horizontal; + info->edge_vertical = edge_vertical; + info->colorspace = colorspace; + + info->horizontal_coefficient_width = stbir__get_coefficient_width (info->horizontal_filter, info->horizontal_scale); + info->vertical_coefficient_width = stbir__get_coefficient_width (info->vertical_filter , info->vertical_scale ); + info->horizontal_filter_pixel_width = stbir__get_filter_pixel_width (info->horizontal_filter, info->horizontal_scale); + info->vertical_filter_pixel_width = stbir__get_filter_pixel_width (info->vertical_filter , info->vertical_scale ); + info->horizontal_filter_pixel_margin = stbir__get_filter_pixel_margin(info->horizontal_filter, info->horizontal_scale); + info->vertical_filter_pixel_margin = stbir__get_filter_pixel_margin(info->vertical_filter , info->vertical_scale ); + + info->ring_buffer_length_bytes = info->output_w * info->channels * sizeof(float); + info->decode_buffer_pixels = info->input_w + info->horizontal_filter_pixel_margin * 2; + +#define STBIR__NEXT_MEMPTR(current, newtype) (newtype*)(((unsigned char*)current) + current##_size) + + info->horizontal_contributors = (stbir__contributors *) tempmem; + info->horizontal_coefficients = STBIR__NEXT_MEMPTR(info->horizontal_contributors, float); + info->vertical_contributors = STBIR__NEXT_MEMPTR(info->horizontal_coefficients, stbir__contributors); + info->vertical_coefficients = STBIR__NEXT_MEMPTR(info->vertical_contributors, float); + info->decode_buffer = STBIR__NEXT_MEMPTR(info->vertical_coefficients, float); + + if (stbir__use_height_upsampling(info)) + { + info->horizontal_buffer = NULL; + info->ring_buffer = STBIR__NEXT_MEMPTR(info->decode_buffer, float); + info->encode_buffer = STBIR__NEXT_MEMPTR(info->ring_buffer, float); + + STBIR_ASSERT((size_t)STBIR__NEXT_MEMPTR(info->encode_buffer, unsigned char) == (size_t)tempmem + tempmem_size_in_bytes); + } + else + { + info->horizontal_buffer = STBIR__NEXT_MEMPTR(info->decode_buffer, float); + info->ring_buffer = STBIR__NEXT_MEMPTR(info->horizontal_buffer, float); + info->encode_buffer = NULL; + + STBIR_ASSERT((size_t)STBIR__NEXT_MEMPTR(info->ring_buffer, unsigned char) == (size_t)tempmem + tempmem_size_in_bytes); + } + +#undef STBIR__NEXT_MEMPTR + + // This signals that the ring buffer is empty + info->ring_buffer_begin_index = -1; + + stbir__calculate_filters(info->horizontal_contributors, info->horizontal_coefficients, info->horizontal_filter, info->horizontal_scale, info->horizontal_shift, info->input_w, info->output_w); + stbir__calculate_filters(info->vertical_contributors, info->vertical_coefficients, info->vertical_filter, info->vertical_scale, info->vertical_shift, info->input_h, info->output_h); + + STBIR_PROGRESS_REPORT(0); + + if (stbir__use_height_upsampling(info)) + stbir__buffer_loop_upsample(info); + else + stbir__buffer_loop_downsample(info); + + STBIR_PROGRESS_REPORT(1); + +#ifdef STBIR_DEBUG_OVERWRITE_TEST + STBIR_ASSERT(memcmp(overwrite_output_before_pre, &((unsigned char*)output_data)[-OVERWRITE_ARRAY_SIZE], OVERWRITE_ARRAY_SIZE) == 0); + STBIR_ASSERT(memcmp(overwrite_output_after_pre, &((unsigned char*)output_data)[begin_forbidden], OVERWRITE_ARRAY_SIZE) == 0); + STBIR_ASSERT(memcmp(overwrite_tempmem_before_pre, &((unsigned char*)tempmem)[-OVERWRITE_ARRAY_SIZE], OVERWRITE_ARRAY_SIZE) == 0); + STBIR_ASSERT(memcmp(overwrite_tempmem_after_pre, &((unsigned char*)tempmem)[tempmem_size_in_bytes], OVERWRITE_ARRAY_SIZE) == 0); +#endif + + return 1; +} + + +static int stbir__resize_arbitrary( + void *alloc_context, + const void* input_data, int input_w, int input_h, int input_stride_in_bytes, + void* output_data, int output_w, int output_h, int output_stride_in_bytes, + float s0, float t0, float s1, float t1, float *transform, + int channels, int alpha_channel, stbir_uint32 flags, stbir_datatype type, + stbir_filter h_filter, stbir_filter v_filter, + stbir_edge edge_horizontal, stbir_edge edge_vertical, stbir_colorspace colorspace) +{ + stbir__info info; + int result; + size_t memory_required; + void* extra_memory; + + stbir__setup(&info, input_w, input_h, output_w, output_h, channels); + stbir__calculate_transform(&info, s0,t0,s1,t1,transform); + stbir__choose_filter(&info, h_filter, v_filter); + memory_required = stbir__calculate_memory(&info); + extra_memory = STBIR_MALLOC(memory_required, alloc_context); + + if (!extra_memory) + return 0; + + result = stbir__resize_allocated(&info, input_data, input_stride_in_bytes, + output_data, output_stride_in_bytes, + alpha_channel, flags, type, + edge_horizontal, edge_vertical, + colorspace, extra_memory, memory_required); + + STBIR_FREE(extra_memory, alloc_context); + + return result; +} + +STBIRDEF int stbir_resize_uint8( const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels) +{ + return stbir__resize_arbitrary(NULL, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,NULL,num_channels,-1,0, STBIR_TYPE_UINT8, STBIR_FILTER_DEFAULT, STBIR_FILTER_DEFAULT, + STBIR_EDGE_CLAMP, STBIR_EDGE_CLAMP, STBIR_COLORSPACE_LINEAR); +} + +STBIRDEF int stbir_resize_float( const float *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + float *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels) +{ + return stbir__resize_arbitrary(NULL, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,NULL,num_channels,-1,0, STBIR_TYPE_FLOAT, STBIR_FILTER_DEFAULT, STBIR_FILTER_DEFAULT, + STBIR_EDGE_CLAMP, STBIR_EDGE_CLAMP, STBIR_COLORSPACE_LINEAR); +} + +STBIRDEF int stbir_resize_uint8_srgb(const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags) +{ + return stbir__resize_arbitrary(NULL, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,NULL,num_channels,alpha_channel,flags, STBIR_TYPE_UINT8, STBIR_FILTER_DEFAULT, STBIR_FILTER_DEFAULT, + STBIR_EDGE_CLAMP, STBIR_EDGE_CLAMP, STBIR_COLORSPACE_SRGB); +} + +STBIRDEF int stbir_resize_uint8_srgb_edgemode(const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_wrap_mode) +{ + return stbir__resize_arbitrary(NULL, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,NULL,num_channels,alpha_channel,flags, STBIR_TYPE_UINT8, STBIR_FILTER_DEFAULT, STBIR_FILTER_DEFAULT, + edge_wrap_mode, edge_wrap_mode, STBIR_COLORSPACE_SRGB); +} + +STBIRDEF int stbir_resize_uint8_generic( const unsigned char *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + unsigned char *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space, + void *alloc_context) +{ + return stbir__resize_arbitrary(alloc_context, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,NULL,num_channels,alpha_channel,flags, STBIR_TYPE_UINT8, filter, filter, + edge_wrap_mode, edge_wrap_mode, space); +} + +STBIRDEF int stbir_resize_uint16_generic(const stbir_uint16 *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + stbir_uint16 *output_pixels , int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space, + void *alloc_context) +{ + return stbir__resize_arbitrary(alloc_context, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,NULL,num_channels,alpha_channel,flags, STBIR_TYPE_UINT16, filter, filter, + edge_wrap_mode, edge_wrap_mode, space); +} + + +STBIRDEF int stbir_resize_float_generic( const float *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + float *output_pixels , int output_w, int output_h, int output_stride_in_bytes, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_wrap_mode, stbir_filter filter, stbir_colorspace space, + void *alloc_context) +{ + return stbir__resize_arbitrary(alloc_context, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,NULL,num_channels,alpha_channel,flags, STBIR_TYPE_FLOAT, filter, filter, + edge_wrap_mode, edge_wrap_mode, space); +} + + +STBIRDEF int stbir_resize( const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + void *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + stbir_datatype datatype, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical, + stbir_filter filter_horizontal, stbir_filter filter_vertical, + stbir_colorspace space, void *alloc_context) +{ + return stbir__resize_arbitrary(alloc_context, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,NULL,num_channels,alpha_channel,flags, datatype, filter_horizontal, filter_vertical, + edge_mode_horizontal, edge_mode_vertical, space); +} + + +STBIRDEF int stbir_resize_subpixel(const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + void *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + stbir_datatype datatype, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical, + stbir_filter filter_horizontal, stbir_filter filter_vertical, + stbir_colorspace space, void *alloc_context, + float x_scale, float y_scale, + float x_offset, float y_offset) +{ + float transform[4]; + transform[0] = x_scale; + transform[1] = y_scale; + transform[2] = x_offset; + transform[3] = y_offset; + return stbir__resize_arbitrary(alloc_context, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + 0,0,1,1,transform,num_channels,alpha_channel,flags, datatype, filter_horizontal, filter_vertical, + edge_mode_horizontal, edge_mode_vertical, space); +} + +STBIRDEF int stbir_resize_region( const void *input_pixels , int input_w , int input_h , int input_stride_in_bytes, + void *output_pixels, int output_w, int output_h, int output_stride_in_bytes, + stbir_datatype datatype, + int num_channels, int alpha_channel, int flags, + stbir_edge edge_mode_horizontal, stbir_edge edge_mode_vertical, + stbir_filter filter_horizontal, stbir_filter filter_vertical, + stbir_colorspace space, void *alloc_context, + float s0, float t0, float s1, float t1) +{ + return stbir__resize_arbitrary(alloc_context, input_pixels, input_w, input_h, input_stride_in_bytes, + output_pixels, output_w, output_h, output_stride_in_bytes, + s0,t0,s1,t1,NULL,num_channels,alpha_channel,flags, datatype, filter_horizontal, filter_vertical, + edge_mode_horizontal, edge_mode_vertical, space); +} + +#endif // STB_IMAGE_RESIZE_IMPLEMENTATION + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/stb_image_write.h b/stb_image_write.h new file mode 100644 index 0000000..9a195d7 --- /dev/null +++ b/stb_image_write.h @@ -0,0 +1,1690 @@ +/* stb_image_write - v1.15 - public domain - http://nothings.org/stb + writes out PNG/BMP/TGA/JPEG/HDR images to C stdio - Sean Barrett 2010-2015 + no warranty implied; use at your own risk + + Before #including, + + #define STB_IMAGE_WRITE_IMPLEMENTATION + + in the file that you want to have the implementation. + + Will probably not work correctly with strict-aliasing optimizations. + +ABOUT: + + This header file is a library for writing images to C stdio or a callback. + + The PNG output is not optimal; it is 20-50% larger than the file + written by a decent optimizing implementation; though providing a custom + zlib compress function (see STBIW_ZLIB_COMPRESS) can mitigate that. + This library is designed for source code compactness and simplicity, + not optimal image file size or run-time performance. + +BUILDING: + + You can #define STBIW_ASSERT(x) before the #include to avoid using assert.h. + You can #define STBIW_MALLOC(), STBIW_REALLOC(), and STBIW_FREE() to replace + malloc,realloc,free. + You can #define STBIW_MEMMOVE() to replace memmove() + You can #define STBIW_ZLIB_COMPRESS to use a custom zlib-style compress function + for PNG compression (instead of the builtin one), it must have the following signature: + unsigned char * my_compress(unsigned char *data, int data_len, int *out_len, int quality); + The returned data will be freed with STBIW_FREE() (free() by default), + so it must be heap allocated with STBIW_MALLOC() (malloc() by default), + +UNICODE: + + If compiling for Windows and you wish to use Unicode filenames, compile + with + #define STBIW_WINDOWS_UTF8 + and pass utf8-encoded filenames. Call stbiw_convert_wchar_to_utf8 to convert + Windows wchar_t filenames to utf8. + +USAGE: + + There are five functions, one for each image file format: + + int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes); + int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data); + int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data); + int stbi_write_jpg(char const *filename, int w, int h, int comp, const void *data, int quality); + int stbi_write_hdr(char const *filename, int w, int h, int comp, const float *data); + + void stbi_flip_vertically_on_write(int flag); // flag is non-zero to flip data vertically + + There are also five equivalent functions that use an arbitrary write function. You are + expected to open/close your file-equivalent before and after calling these: + + int stbi_write_png_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data, int stride_in_bytes); + int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data); + int stbi_write_tga_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data); + int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const float *data); + int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality); + + where the callback is: + void stbi_write_func(void *context, void *data, int size); + + You can configure it with these global variables: + int stbi_write_tga_with_rle; // defaults to true; set to 0 to disable RLE + int stbi_write_png_compression_level; // defaults to 8; set to higher for more compression + int stbi_write_force_png_filter; // defaults to -1; set to 0..5 to force a filter mode + + + You can define STBI_WRITE_NO_STDIO to disable the file variant of these + functions, so the library will not use stdio.h at all. However, this will + also disable HDR writing, because it requires stdio for formatted output. + + Each function returns 0 on failure and non-0 on success. + + The functions create an image file defined by the parameters. The image + is a rectangle of pixels stored from left-to-right, top-to-bottom. + Each pixel contains 'comp' channels of data stored interleaved with 8-bits + per channel, in the following order: 1=Y, 2=YA, 3=RGB, 4=RGBA. (Y is + monochrome color.) The rectangle is 'w' pixels wide and 'h' pixels tall. + The *data pointer points to the first byte of the top-left-most pixel. + For PNG, "stride_in_bytes" is the distance in bytes from the first byte of + a row of pixels to the first byte of the next row of pixels. + + PNG creates output files with the same number of components as the input. + The BMP format expands Y to RGB in the file format and does not + output alpha. + + PNG supports writing rectangles of data even when the bytes storing rows of + data are not consecutive in memory (e.g. sub-rectangles of a larger image), + by supplying the stride between the beginning of adjacent rows. The other + formats do not. (Thus you cannot write a native-format BMP through the BMP + writer, both because it is in BGR order and because it may have padding + at the end of the line.) + + PNG allows you to set the deflate compression level by setting the global + variable 'stbi_write_png_compression_level' (it defaults to 8). + + HDR expects linear float data. Since the format is always 32-bit rgb(e) + data, alpha (if provided) is discarded, and for monochrome data it is + replicated across all three channels. + + TGA supports RLE or non-RLE compressed data. To use non-RLE-compressed + data, set the global variable 'stbi_write_tga_with_rle' to 0. + + JPEG does ignore alpha channels in input data; quality is between 1 and 100. + Higher quality looks better but results in a bigger image. + JPEG baseline (no JPEG progressive). + +CREDITS: + + + Sean Barrett - PNG/BMP/TGA + Baldur Karlsson - HDR + Jean-Sebastien Guay - TGA monochrome + Tim Kelsey - misc enhancements + Alan Hickman - TGA RLE + Emmanuel Julien - initial file IO callback implementation + Jon Olick - original jo_jpeg.cpp code + Daniel Gibson - integrate JPEG, allow external zlib + Aarni Koskela - allow choosing PNG filter + + bugfixes: + github:Chribba + Guillaume Chereau + github:jry2 + github:romigrou + Sergio Gonzalez + Jonas Karlsson + Filip Wasil + Thatcher Ulrich + github:poppolopoppo + Patrick Boettcher + github:xeekworx + Cap Petschulat + Simon Rodriguez + Ivan Tikhonov + github:ignotion + Adam Schackart + +LICENSE + + See end of file for license information. + +*/ + +#ifndef INCLUDE_STB_IMAGE_WRITE_H +#define INCLUDE_STB_IMAGE_WRITE_H + +#include <stdlib.h> + +// if STB_IMAGE_WRITE_STATIC causes problems, try defining STBIWDEF to 'inline' or 'static inline' +#ifndef STBIWDEF +#ifdef STB_IMAGE_WRITE_STATIC +#define STBIWDEF static +#else +#ifdef __cplusplus +#define STBIWDEF extern "C" +#else +#define STBIWDEF extern +#endif +#endif +#endif + +#ifndef STB_IMAGE_WRITE_STATIC // C++ forbids static forward declarations +extern int stbi_write_tga_with_rle; +extern int stbi_write_png_compression_level; +extern int stbi_write_force_png_filter; +#endif + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes); +STBIWDEF int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data); +STBIWDEF int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data); +STBIWDEF int stbi_write_hdr(char const *filename, int w, int h, int comp, const float *data); +STBIWDEF int stbi_write_jpg(char const *filename, int x, int y, int comp, const void *data, int quality); + +#ifdef STBI_WINDOWS_UTF8 +STBIWDEF int stbiw_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); +#endif +#endif + +typedef void stbi_write_func(void *context, void *data, int size); + +STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data, int stride_in_bytes); +STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data); +STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const void *data); +STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int w, int h, int comp, const float *data); +STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality); + +STBIWDEF void stbi_flip_vertically_on_write(int flip_boolean); + +#endif//INCLUDE_STB_IMAGE_WRITE_H + +#ifdef STB_IMAGE_WRITE_IMPLEMENTATION + +#ifdef _WIN32 + #ifndef _CRT_SECURE_NO_WARNINGS + #define _CRT_SECURE_NO_WARNINGS + #endif + #ifndef _CRT_NONSTDC_NO_DEPRECATE + #define _CRT_NONSTDC_NO_DEPRECATE + #endif +#endif + +#ifndef STBI_WRITE_NO_STDIO +#include <stdio.h> +#endif // STBI_WRITE_NO_STDIO + +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <math.h> + +#if defined(STBIW_MALLOC) && defined(STBIW_FREE) && (defined(STBIW_REALLOC) || defined(STBIW_REALLOC_SIZED)) +// ok +#elif !defined(STBIW_MALLOC) && !defined(STBIW_FREE) && !defined(STBIW_REALLOC) && !defined(STBIW_REALLOC_SIZED) +// ok +#else +#error "Must define all or none of STBIW_MALLOC, STBIW_FREE, and STBIW_REALLOC (or STBIW_REALLOC_SIZED)." +#endif + +#ifndef STBIW_MALLOC +#define STBIW_MALLOC(sz) malloc(sz) +#define STBIW_REALLOC(p,newsz) realloc(p,newsz) +#define STBIW_FREE(p) free(p) +#endif + +#ifndef STBIW_REALLOC_SIZED +#define STBIW_REALLOC_SIZED(p,oldsz,newsz) STBIW_REALLOC(p,newsz) +#endif + + +#ifndef STBIW_MEMMOVE +#define STBIW_MEMMOVE(a,b,sz) memmove(a,b,sz) +#endif + + +#ifndef STBIW_ASSERT +#include <assert.h> +#define STBIW_ASSERT(x) assert(x) +#endif + +#define STBIW_UCHAR(x) (unsigned char) ((x) & 0xff) + +#ifdef STB_IMAGE_WRITE_STATIC +static int stbi_write_png_compression_level = 8; +static int stbi_write_tga_with_rle = 1; +static int stbi_write_force_png_filter = -1; +#else +int stbi_write_png_compression_level = 8; +int stbi_write_tga_with_rle = 1; +int stbi_write_force_png_filter = -1; +#endif + +static int stbi__flip_vertically_on_write = 0; + +STBIWDEF void stbi_flip_vertically_on_write(int flag) +{ + stbi__flip_vertically_on_write = flag; +} + +typedef struct +{ + stbi_write_func *func; + void *context; + unsigned char buffer[64]; + int buf_used; +} stbi__write_context; + +// initialize a callback-based context +static void stbi__start_write_callbacks(stbi__write_context *s, stbi_write_func *c, void *context) +{ + s->func = c; + s->context = context; +} + +#ifndef STBI_WRITE_NO_STDIO + +static void stbi__stdio_write(void *context, void *data, int size) +{ + fwrite(data,1,size,(FILE*) context); +} + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +#ifdef __cplusplus +#define STBIW_EXTERN extern "C" +#else +#define STBIW_EXTERN extern +#endif +STBIW_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); +STBIW_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); + +STBIWDEF int stbiw_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) +{ + return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); +} +#endif + +static FILE *stbiw__fopen(char const *filename, char const *mode) +{ + FILE *f; +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) + wchar_t wMode[64]; + wchar_t wFilename[1024]; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename))) + return 0; + + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode))) + return 0; + +#if _MSC_VER >= 1400 + if (0 != _wfopen_s(&f, wFilename, wMode)) + f = 0; +#else + f = _wfopen(wFilename, wMode); +#endif + +#elif defined(_MSC_VER) && _MSC_VER >= 1400 + if (0 != fopen_s(&f, filename, mode)) + f=0; +#else + f = fopen(filename, mode); +#endif + return f; +} + +static int stbi__start_write_file(stbi__write_context *s, const char *filename) +{ + FILE *f = stbiw__fopen(filename, "wb"); + stbi__start_write_callbacks(s, stbi__stdio_write, (void *) f); + return f != NULL; +} + +static void stbi__end_write_file(stbi__write_context *s) +{ + fclose((FILE *)s->context); +} + +#endif // !STBI_WRITE_NO_STDIO + +typedef unsigned int stbiw_uint32; +typedef int stb_image_write_test[sizeof(stbiw_uint32)==4 ? 1 : -1]; + +static void stbiw__writefv(stbi__write_context *s, const char *fmt, va_list v) +{ + while (*fmt) { + switch (*fmt++) { + case ' ': break; + case '1': { unsigned char x = STBIW_UCHAR(va_arg(v, int)); + s->func(s->context,&x,1); + break; } + case '2': { int x = va_arg(v,int); + unsigned char b[2]; + b[0] = STBIW_UCHAR(x); + b[1] = STBIW_UCHAR(x>>8); + s->func(s->context,b,2); + break; } + case '4': { stbiw_uint32 x = va_arg(v,int); + unsigned char b[4]; + b[0]=STBIW_UCHAR(x); + b[1]=STBIW_UCHAR(x>>8); + b[2]=STBIW_UCHAR(x>>16); + b[3]=STBIW_UCHAR(x>>24); + s->func(s->context,b,4); + break; } + default: + STBIW_ASSERT(0); + return; + } + } +} + +static void stbiw__writef(stbi__write_context *s, const char *fmt, ...) +{ + va_list v; + va_start(v, fmt); + stbiw__writefv(s, fmt, v); + va_end(v); +} + +static void stbiw__write_flush(stbi__write_context *s) +{ + if (s->buf_used) { + s->func(s->context, &s->buffer, s->buf_used); + s->buf_used = 0; + } +} + +static void stbiw__putc(stbi__write_context *s, unsigned char c) +{ + s->func(s->context, &c, 1); +} + +static void stbiw__write1(stbi__write_context *s, unsigned char a) +{ + if (s->buf_used + 1 > (int)sizeof(s->buffer)) + stbiw__write_flush(s); + s->buffer[s->buf_used++] = a; +} + +static void stbiw__write3(stbi__write_context *s, unsigned char a, unsigned char b, unsigned char c) +{ + int n; + if (s->buf_used + 3 > (int)sizeof(s->buffer)) + stbiw__write_flush(s); + n = s->buf_used; + s->buf_used = n+3; + s->buffer[n+0] = a; + s->buffer[n+1] = b; + s->buffer[n+2] = c; +} + +static void stbiw__write_pixel(stbi__write_context *s, int rgb_dir, int comp, int write_alpha, int expand_mono, unsigned char *d) +{ + unsigned char bg[3] = { 255, 0, 255}, px[3]; + int k; + + if (write_alpha < 0) + stbiw__write1(s, d[comp - 1]); + + switch (comp) { + case 2: // 2 pixels = mono + alpha, alpha is written separately, so same as 1-channel case + case 1: + if (expand_mono) + stbiw__write3(s, d[0], d[0], d[0]); // monochrome bmp + else + stbiw__write1(s, d[0]); // monochrome TGA + break; + case 4: + if (!write_alpha) { + // composite against pink background + for (k = 0; k < 3; ++k) + px[k] = bg[k] + ((d[k] - bg[k]) * d[3]) / 255; + stbiw__write3(s, px[1 - rgb_dir], px[1], px[1 + rgb_dir]); + break; + } + /* FALLTHROUGH */ + case 3: + stbiw__write3(s, d[1 - rgb_dir], d[1], d[1 + rgb_dir]); + break; + } + if (write_alpha > 0) + stbiw__write1(s, d[comp - 1]); +} + +static void stbiw__write_pixels(stbi__write_context *s, int rgb_dir, int vdir, int x, int y, int comp, void *data, int write_alpha, int scanline_pad, int expand_mono) +{ + stbiw_uint32 zero = 0; + int i,j, j_end; + + if (y <= 0) + return; + + if (stbi__flip_vertically_on_write) + vdir *= -1; + + if (vdir < 0) { + j_end = -1; j = y-1; + } else { + j_end = y; j = 0; + } + + for (; j != j_end; j += vdir) { + for (i=0; i < x; ++i) { + unsigned char *d = (unsigned char *) data + (j*x+i)*comp; + stbiw__write_pixel(s, rgb_dir, comp, write_alpha, expand_mono, d); + } + stbiw__write_flush(s); + s->func(s->context, &zero, scanline_pad); + } +} + +static int stbiw__outfile(stbi__write_context *s, int rgb_dir, int vdir, int x, int y, int comp, int expand_mono, void *data, int alpha, int pad, const char *fmt, ...) +{ + if (y < 0 || x < 0) { + return 0; + } else { + va_list v; + va_start(v, fmt); + stbiw__writefv(s, fmt, v); + va_end(v); + stbiw__write_pixels(s,rgb_dir,vdir,x,y,comp,data,alpha,pad, expand_mono); + return 1; + } +} + +static int stbi_write_bmp_core(stbi__write_context *s, int x, int y, int comp, const void *data) +{ + int pad = (-x*3) & 3; + return stbiw__outfile(s,-1,-1,x,y,comp,1,(void *) data,0,pad, + "11 4 22 4" "4 44 22 444444", + 'B', 'M', 14+40+(x*3+pad)*y, 0,0, 14+40, // file header + 40, x,y, 1,24, 0,0,0,0,0,0); // bitmap header +} + +STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data) +{ + stbi__write_context s = { 0 }; + stbi__start_write_callbacks(&s, func, context); + return stbi_write_bmp_core(&s, x, y, comp, data); +} + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_bmp(char const *filename, int x, int y, int comp, const void *data) +{ + stbi__write_context s = { 0 }; + if (stbi__start_write_file(&s,filename)) { + int r = stbi_write_bmp_core(&s, x, y, comp, data); + stbi__end_write_file(&s); + return r; + } else + return 0; +} +#endif //!STBI_WRITE_NO_STDIO + +static int stbi_write_tga_core(stbi__write_context *s, int x, int y, int comp, void *data) +{ + int has_alpha = (comp == 2 || comp == 4); + int colorbytes = has_alpha ? comp-1 : comp; + int format = colorbytes < 2 ? 3 : 2; // 3 color channels (RGB/RGBA) = 2, 1 color channel (Y/YA) = 3 + + if (y < 0 || x < 0) + return 0; + + if (!stbi_write_tga_with_rle) { + return stbiw__outfile(s, -1, -1, x, y, comp, 0, (void *) data, has_alpha, 0, + "111 221 2222 11", 0, 0, format, 0, 0, 0, 0, 0, x, y, (colorbytes + has_alpha) * 8, has_alpha * 8); + } else { + int i,j,k; + int jend, jdir; + + stbiw__writef(s, "111 221 2222 11", 0,0,format+8, 0,0,0, 0,0,x,y, (colorbytes + has_alpha) * 8, has_alpha * 8); + + if (stbi__flip_vertically_on_write) { + j = 0; + jend = y; + jdir = 1; + } else { + j = y-1; + jend = -1; + jdir = -1; + } + for (; j != jend; j += jdir) { + unsigned char *row = (unsigned char *) data + j * x * comp; + int len; + + for (i = 0; i < x; i += len) { + unsigned char *begin = row + i * comp; + int diff = 1; + len = 1; + + if (i < x - 1) { + ++len; + diff = memcmp(begin, row + (i + 1) * comp, comp); + if (diff) { + const unsigned char *prev = begin; + for (k = i + 2; k < x && len < 128; ++k) { + if (memcmp(prev, row + k * comp, comp)) { + prev += comp; + ++len; + } else { + --len; + break; + } + } + } else { + for (k = i + 2; k < x && len < 128; ++k) { + if (!memcmp(begin, row + k * comp, comp)) { + ++len; + } else { + break; + } + } + } + } + + if (diff) { + unsigned char header = STBIW_UCHAR(len - 1); + stbiw__write1(s, header); + for (k = 0; k < len; ++k) { + stbiw__write_pixel(s, -1, comp, has_alpha, 0, begin + k * comp); + } + } else { + unsigned char header = STBIW_UCHAR(len - 129); + stbiw__write1(s, header); + stbiw__write_pixel(s, -1, comp, has_alpha, 0, begin); + } + } + } + stbiw__write_flush(s); + } + return 1; +} + +STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data) +{ + stbi__write_context s = { 0 }; + stbi__start_write_callbacks(&s, func, context); + return stbi_write_tga_core(&s, x, y, comp, (void *) data); +} + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_tga(char const *filename, int x, int y, int comp, const void *data) +{ + stbi__write_context s = { 0 }; + if (stbi__start_write_file(&s,filename)) { + int r = stbi_write_tga_core(&s, x, y, comp, (void *) data); + stbi__end_write_file(&s); + return r; + } else + return 0; +} +#endif + +// ************************************************************************************************* +// Radiance RGBE HDR writer +// by Baldur Karlsson + +#define stbiw__max(a, b) ((a) > (b) ? (a) : (b)) + +static void stbiw__linear_to_rgbe(unsigned char *rgbe, float *linear) +{ + int exponent; + float maxcomp = stbiw__max(linear[0], stbiw__max(linear[1], linear[2])); + + if (maxcomp < 1e-32f) { + rgbe[0] = rgbe[1] = rgbe[2] = rgbe[3] = 0; + } else { + float normalize = (float) frexp(maxcomp, &exponent) * 256.0f/maxcomp; + + rgbe[0] = (unsigned char)(linear[0] * normalize); + rgbe[1] = (unsigned char)(linear[1] * normalize); + rgbe[2] = (unsigned char)(linear[2] * normalize); + rgbe[3] = (unsigned char)(exponent + 128); + } +} + +static void stbiw__write_run_data(stbi__write_context *s, int length, unsigned char databyte) +{ + unsigned char lengthbyte = STBIW_UCHAR(length+128); + STBIW_ASSERT(length+128 <= 255); + s->func(s->context, &lengthbyte, 1); + s->func(s->context, &databyte, 1); +} + +static void stbiw__write_dump_data(stbi__write_context *s, int length, unsigned char *data) +{ + unsigned char lengthbyte = STBIW_UCHAR(length); + STBIW_ASSERT(length <= 128); // inconsistent with spec but consistent with official code + s->func(s->context, &lengthbyte, 1); + s->func(s->context, data, length); +} + +static void stbiw__write_hdr_scanline(stbi__write_context *s, int width, int ncomp, unsigned char *scratch, float *scanline) +{ + unsigned char scanlineheader[4] = { 2, 2, 0, 0 }; + unsigned char rgbe[4]; + float linear[3]; + int x; + + scanlineheader[2] = (width&0xff00)>>8; + scanlineheader[3] = (width&0x00ff); + + /* skip RLE for images too small or large */ + if (width < 8 || width >= 32768) { + for (x=0; x < width; x++) { + switch (ncomp) { + case 4: /* fallthrough */ + case 3: linear[2] = scanline[x*ncomp + 2]; + linear[1] = scanline[x*ncomp + 1]; + linear[0] = scanline[x*ncomp + 0]; + break; + default: + linear[0] = linear[1] = linear[2] = scanline[x*ncomp + 0]; + break; + } + stbiw__linear_to_rgbe(rgbe, linear); + s->func(s->context, rgbe, 4); + } + } else { + int c,r; + /* encode into scratch buffer */ + for (x=0; x < width; x++) { + switch(ncomp) { + case 4: /* fallthrough */ + case 3: linear[2] = scanline[x*ncomp + 2]; + linear[1] = scanline[x*ncomp + 1]; + linear[0] = scanline[x*ncomp + 0]; + break; + default: + linear[0] = linear[1] = linear[2] = scanline[x*ncomp + 0]; + break; + } + stbiw__linear_to_rgbe(rgbe, linear); + scratch[x + width*0] = rgbe[0]; + scratch[x + width*1] = rgbe[1]; + scratch[x + width*2] = rgbe[2]; + scratch[x + width*3] = rgbe[3]; + } + + s->func(s->context, scanlineheader, 4); + + /* RLE each component separately */ + for (c=0; c < 4; c++) { + unsigned char *comp = &scratch[width*c]; + + x = 0; + while (x < width) { + // find first run + r = x; + while (r+2 < width) { + if (comp[r] == comp[r+1] && comp[r] == comp[r+2]) + break; + ++r; + } + if (r+2 >= width) + r = width; + // dump up to first run + while (x < r) { + int len = r-x; + if (len > 128) len = 128; + stbiw__write_dump_data(s, len, &comp[x]); + x += len; + } + // if there's a run, output it + if (r+2 < width) { // same test as what we break out of in search loop, so only true if we break'd + // find next byte after run + while (r < width && comp[r] == comp[x]) + ++r; + // output run up to r + while (x < r) { + int len = r-x; + if (len > 127) len = 127; + stbiw__write_run_data(s, len, comp[x]); + x += len; + } + } + } + } + } +} + +static int stbi_write_hdr_core(stbi__write_context *s, int x, int y, int comp, float *data) +{ + if (y <= 0 || x <= 0 || data == NULL) + return 0; + else { + // Each component is stored separately. Allocate scratch space for full output scanline. + unsigned char *scratch = (unsigned char *) STBIW_MALLOC(x*4); + int i, len; + char buffer[128]; + char header[] = "#?RADIANCE\n# Written by stb_image_write.h\nFORMAT=32-bit_rle_rgbe\n"; + s->func(s->context, header, sizeof(header)-1); + +#ifdef __STDC_WANT_SECURE_LIB__ + len = sprintf_s(buffer, sizeof(buffer), "EXPOSURE= 1.0000000000000\n\n-Y %d +X %d\n", y, x); +#else + len = sprintf(buffer, "EXPOSURE= 1.0000000000000\n\n-Y %d +X %d\n", y, x); +#endif + s->func(s->context, buffer, len); + + for(i=0; i < y; i++) + stbiw__write_hdr_scanline(s, x, comp, scratch, data + comp*x*(stbi__flip_vertically_on_write ? y-1-i : i)); + STBIW_FREE(scratch); + return 1; + } +} + +STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data) +{ + stbi__write_context s = { 0 }; + stbi__start_write_callbacks(&s, func, context); + return stbi_write_hdr_core(&s, x, y, comp, (float *) data); +} + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_hdr(char const *filename, int x, int y, int comp, const float *data) +{ + stbi__write_context s = { 0 }; + if (stbi__start_write_file(&s,filename)) { + int r = stbi_write_hdr_core(&s, x, y, comp, (float *) data); + stbi__end_write_file(&s); + return r; + } else + return 0; +} +#endif // STBI_WRITE_NO_STDIO + + +////////////////////////////////////////////////////////////////////////////// +// +// PNG writer +// + +#ifndef STBIW_ZLIB_COMPRESS +// stretchy buffer; stbiw__sbpush() == vector<>::push_back() -- stbiw__sbcount() == vector<>::size() +#define stbiw__sbraw(a) ((int *) (void *) (a) - 2) +#define stbiw__sbm(a) stbiw__sbraw(a)[0] +#define stbiw__sbn(a) stbiw__sbraw(a)[1] + +#define stbiw__sbneedgrow(a,n) ((a)==0 || stbiw__sbn(a)+n >= stbiw__sbm(a)) +#define stbiw__sbmaybegrow(a,n) (stbiw__sbneedgrow(a,(n)) ? stbiw__sbgrow(a,n) : 0) +#define stbiw__sbgrow(a,n) stbiw__sbgrowf((void **) &(a), (n), sizeof(*(a))) + +#define stbiw__sbpush(a, v) (stbiw__sbmaybegrow(a,1), (a)[stbiw__sbn(a)++] = (v)) +#define stbiw__sbcount(a) ((a) ? stbiw__sbn(a) : 0) +#define stbiw__sbfree(a) ((a) ? STBIW_FREE(stbiw__sbraw(a)),0 : 0) + +static void *stbiw__sbgrowf(void **arr, int increment, int itemsize) +{ + int m = *arr ? 2*stbiw__sbm(*arr)+increment : increment+1; + void *p = STBIW_REALLOC_SIZED(*arr ? stbiw__sbraw(*arr) : 0, *arr ? (stbiw__sbm(*arr)*itemsize + sizeof(int)*2) : 0, itemsize * m + sizeof(int)*2); + STBIW_ASSERT(p); + if (p) { + if (!*arr) ((int *) p)[1] = 0; + *arr = (void *) ((int *) p + 2); + stbiw__sbm(*arr) = m; + } + return *arr; +} + +static unsigned char *stbiw__zlib_flushf(unsigned char *data, unsigned int *bitbuffer, int *bitcount) +{ + while (*bitcount >= 8) { + stbiw__sbpush(data, STBIW_UCHAR(*bitbuffer)); + *bitbuffer >>= 8; + *bitcount -= 8; + } + return data; +} + +static int stbiw__zlib_bitrev(int code, int codebits) +{ + int res=0; + while (codebits--) { + res = (res << 1) | (code & 1); + code >>= 1; + } + return res; +} + +static unsigned int stbiw__zlib_countm(unsigned char *a, unsigned char *b, int limit) +{ + int i; + for (i=0; i < limit && i < 258; ++i) + if (a[i] != b[i]) break; + return i; +} + +static unsigned int stbiw__zhash(unsigned char *data) +{ + stbiw_uint32 hash = data[0] + (data[1] << 8) + (data[2] << 16); + hash ^= hash << 3; + hash += hash >> 5; + hash ^= hash << 4; + hash += hash >> 17; + hash ^= hash << 25; + hash += hash >> 6; + return hash; +} + +#define stbiw__zlib_flush() (out = stbiw__zlib_flushf(out, &bitbuf, &bitcount)) +#define stbiw__zlib_add(code,codebits) \ + (bitbuf |= (code) << bitcount, bitcount += (codebits), stbiw__zlib_flush()) +#define stbiw__zlib_huffa(b,c) stbiw__zlib_add(stbiw__zlib_bitrev(b,c),c) +// default huffman tables +#define stbiw__zlib_huff1(n) stbiw__zlib_huffa(0x30 + (n), 8) +#define stbiw__zlib_huff2(n) stbiw__zlib_huffa(0x190 + (n)-144, 9) +#define stbiw__zlib_huff3(n) stbiw__zlib_huffa(0 + (n)-256,7) +#define stbiw__zlib_huff4(n) stbiw__zlib_huffa(0xc0 + (n)-280,8) +#define stbiw__zlib_huff(n) ((n) <= 143 ? stbiw__zlib_huff1(n) : (n) <= 255 ? stbiw__zlib_huff2(n) : (n) <= 279 ? stbiw__zlib_huff3(n) : stbiw__zlib_huff4(n)) +#define stbiw__zlib_huffb(n) ((n) <= 143 ? stbiw__zlib_huff1(n) : stbiw__zlib_huff2(n)) + +#define stbiw__ZHASH 16384 + +#endif // STBIW_ZLIB_COMPRESS + +STBIWDEF unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality) +{ +#ifdef STBIW_ZLIB_COMPRESS + // user provided a zlib compress implementation, use that + return STBIW_ZLIB_COMPRESS(data, data_len, out_len, quality); +#else // use builtin + static unsigned short lengthc[] = { 3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258, 259 }; + static unsigned char lengtheb[]= { 0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0 }; + static unsigned short distc[] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 32768 }; + static unsigned char disteb[] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13 }; + unsigned int bitbuf=0; + int i,j, bitcount=0; + unsigned char *out = NULL; + unsigned char ***hash_table = (unsigned char***) STBIW_MALLOC(stbiw__ZHASH * sizeof(unsigned char**)); + if (hash_table == NULL) + return NULL; + if (quality < 5) quality = 5; + + stbiw__sbpush(out, 0x78); // DEFLATE 32K window + stbiw__sbpush(out, 0x5e); // FLEVEL = 1 + stbiw__zlib_add(1,1); // BFINAL = 1 + stbiw__zlib_add(1,2); // BTYPE = 1 -- fixed huffman + + for (i=0; i < stbiw__ZHASH; ++i) + hash_table[i] = NULL; + + i=0; + while (i < data_len-3) { + // hash next 3 bytes of data to be compressed + int h = stbiw__zhash(data+i)&(stbiw__ZHASH-1), best=3; + unsigned char *bestloc = 0; + unsigned char **hlist = hash_table[h]; + int n = stbiw__sbcount(hlist); + for (j=0; j < n; ++j) { + if (hlist[j]-data > i-32768) { // if entry lies within window + int d = stbiw__zlib_countm(hlist[j], data+i, data_len-i); + if (d >= best) { best=d; bestloc=hlist[j]; } + } + } + // when hash table entry is too long, delete half the entries + if (hash_table[h] && stbiw__sbn(hash_table[h]) == 2*quality) { + STBIW_MEMMOVE(hash_table[h], hash_table[h]+quality, sizeof(hash_table[h][0])*quality); + stbiw__sbn(hash_table[h]) = quality; + } + stbiw__sbpush(hash_table[h],data+i); + + if (bestloc) { + // "lazy matching" - check match at *next* byte, and if it's better, do cur byte as literal + h = stbiw__zhash(data+i+1)&(stbiw__ZHASH-1); + hlist = hash_table[h]; + n = stbiw__sbcount(hlist); + for (j=0; j < n; ++j) { + if (hlist[j]-data > i-32767) { + int e = stbiw__zlib_countm(hlist[j], data+i+1, data_len-i-1); + if (e > best) { // if next match is better, bail on current match + bestloc = NULL; + break; + } + } + } + } + + if (bestloc) { + int d = (int) (data+i - bestloc); // distance back + STBIW_ASSERT(d <= 32767 && best <= 258); + for (j=0; best > lengthc[j+1]-1; ++j); + stbiw__zlib_huff(j+257); + if (lengtheb[j]) stbiw__zlib_add(best - lengthc[j], lengtheb[j]); + for (j=0; d > distc[j+1]-1; ++j); + stbiw__zlib_add(stbiw__zlib_bitrev(j,5),5); + if (disteb[j]) stbiw__zlib_add(d - distc[j], disteb[j]); + i += best; + } else { + stbiw__zlib_huffb(data[i]); + ++i; + } + } + // write out final bytes + for (;i < data_len; ++i) + stbiw__zlib_huffb(data[i]); + stbiw__zlib_huff(256); // end of block + // pad with 0 bits to byte boundary + while (bitcount) + stbiw__zlib_add(0,1); + + for (i=0; i < stbiw__ZHASH; ++i) + (void) stbiw__sbfree(hash_table[i]); + STBIW_FREE(hash_table); + + { + // compute adler32 on input + unsigned int s1=1, s2=0; + int blocklen = (int) (data_len % 5552); + j=0; + while (j < data_len) { + for (i=0; i < blocklen; ++i) { s1 += data[j+i]; s2 += s1; } + s1 %= 65521; s2 %= 65521; + j += blocklen; + blocklen = 5552; + } + stbiw__sbpush(out, STBIW_UCHAR(s2 >> 8)); + stbiw__sbpush(out, STBIW_UCHAR(s2)); + stbiw__sbpush(out, STBIW_UCHAR(s1 >> 8)); + stbiw__sbpush(out, STBIW_UCHAR(s1)); + } + *out_len = stbiw__sbn(out); + // make returned pointer freeable + STBIW_MEMMOVE(stbiw__sbraw(out), out, *out_len); + return (unsigned char *) stbiw__sbraw(out); +#endif // STBIW_ZLIB_COMPRESS +} + +static unsigned int stbiw__crc32(unsigned char *buffer, int len) +{ +#ifdef STBIW_CRC32 + return STBIW_CRC32(buffer, len); +#else + static unsigned int crc_table[256] = + { + 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, + 0x0eDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, + 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, + 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, + 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, + 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, + 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, + 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, + 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433, + 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, + 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, + 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, + 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, + 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, + 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, + 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, + 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, + 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, + 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, + 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, + 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, + 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, + 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, + 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, + 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, + 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, + 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, + 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, + 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, + 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, + 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, + 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D + }; + + unsigned int crc = ~0u; + int i; + for (i=0; i < len; ++i) + crc = (crc >> 8) ^ crc_table[buffer[i] ^ (crc & 0xff)]; + return ~crc; +#endif +} + +#define stbiw__wpng4(o,a,b,c,d) ((o)[0]=STBIW_UCHAR(a),(o)[1]=STBIW_UCHAR(b),(o)[2]=STBIW_UCHAR(c),(o)[3]=STBIW_UCHAR(d),(o)+=4) +#define stbiw__wp32(data,v) stbiw__wpng4(data, (v)>>24,(v)>>16,(v)>>8,(v)); +#define stbiw__wptag(data,s) stbiw__wpng4(data, s[0],s[1],s[2],s[3]) + +static void stbiw__wpcrc(unsigned char **data, int len) +{ + unsigned int crc = stbiw__crc32(*data - len - 4, len+4); + stbiw__wp32(*data, crc); +} + +static unsigned char stbiw__paeth(int a, int b, int c) +{ + int p = a + b - c, pa = abs(p-a), pb = abs(p-b), pc = abs(p-c); + if (pa <= pb && pa <= pc) return STBIW_UCHAR(a); + if (pb <= pc) return STBIW_UCHAR(b); + return STBIW_UCHAR(c); +} + +// @OPTIMIZE: provide an option that always forces left-predict or paeth predict +static void stbiw__encode_png_line(unsigned char *pixels, int stride_bytes, int width, int height, int y, int n, int filter_type, signed char *line_buffer) +{ + static int mapping[] = { 0,1,2,3,4 }; + static int firstmap[] = { 0,1,0,5,6 }; + int *mymap = (y != 0) ? mapping : firstmap; + int i; + int type = mymap[filter_type]; + unsigned char *z = pixels + stride_bytes * (stbi__flip_vertically_on_write ? height-1-y : y); + int signed_stride = stbi__flip_vertically_on_write ? -stride_bytes : stride_bytes; + + if (type==0) { + memcpy(line_buffer, z, width*n); + return; + } + + // first loop isn't optimized since it's just one pixel + for (i = 0; i < n; ++i) { + switch (type) { + case 1: line_buffer[i] = z[i]; break; + case 2: line_buffer[i] = z[i] - z[i-signed_stride]; break; + case 3: line_buffer[i] = z[i] - (z[i-signed_stride]>>1); break; + case 4: line_buffer[i] = (signed char) (z[i] - stbiw__paeth(0,z[i-signed_stride],0)); break; + case 5: line_buffer[i] = z[i]; break; + case 6: line_buffer[i] = z[i]; break; + } + } + switch (type) { + case 1: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-n]; break; + case 2: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - z[i-signed_stride]; break; + case 3: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - ((z[i-n] + z[i-signed_stride])>>1); break; + case 4: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], z[i-signed_stride], z[i-signed_stride-n]); break; + case 5: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - (z[i-n]>>1); break; + case 6: for (i=n; i < width*n; ++i) line_buffer[i] = z[i] - stbiw__paeth(z[i-n], 0,0); break; + } +} + +STBIWDEF unsigned char *stbi_write_png_to_mem(const unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len) +{ + int force_filter = stbi_write_force_png_filter; + int ctype[5] = { -1, 0, 4, 2, 6 }; + unsigned char sig[8] = { 137,80,78,71,13,10,26,10 }; + unsigned char *out,*o, *filt, *zlib; + signed char *line_buffer; + int j,zlen; + + if (stride_bytes == 0) + stride_bytes = x * n; + + if (force_filter >= 5) { + force_filter = -1; + } + + filt = (unsigned char *) STBIW_MALLOC((x*n+1) * y); if (!filt) return 0; + line_buffer = (signed char *) STBIW_MALLOC(x * n); if (!line_buffer) { STBIW_FREE(filt); return 0; } + for (j=0; j < y; ++j) { + int filter_type; + if (force_filter > -1) { + filter_type = force_filter; + stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, force_filter, line_buffer); + } else { // Estimate the best filter by running through all of them: + int best_filter = 0, best_filter_val = 0x7fffffff, est, i; + for (filter_type = 0; filter_type < 5; filter_type++) { + stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, filter_type, line_buffer); + + // Estimate the entropy of the line using this filter; the less, the better. + est = 0; + for (i = 0; i < x*n; ++i) { + est += abs((signed char) line_buffer[i]); + } + if (est < best_filter_val) { + best_filter_val = est; + best_filter = filter_type; + } + } + if (filter_type != best_filter) { // If the last iteration already got us the best filter, don't redo it + stbiw__encode_png_line((unsigned char*)(pixels), stride_bytes, x, y, j, n, best_filter, line_buffer); + filter_type = best_filter; + } + } + // when we get here, filter_type contains the filter type, and line_buffer contains the data + filt[j*(x*n+1)] = (unsigned char) filter_type; + STBIW_MEMMOVE(filt+j*(x*n+1)+1, line_buffer, x*n); + } + STBIW_FREE(line_buffer); + zlib = stbi_zlib_compress(filt, y*( x*n+1), &zlen, stbi_write_png_compression_level); + STBIW_FREE(filt); + if (!zlib) return 0; + + // each tag requires 12 bytes of overhead + out = (unsigned char *) STBIW_MALLOC(8 + 12+13 + 12+zlen + 12); + if (!out) return 0; + *out_len = 8 + 12+13 + 12+zlen + 12; + + o=out; + STBIW_MEMMOVE(o,sig,8); o+= 8; + stbiw__wp32(o, 13); // header length + stbiw__wptag(o, "IHDR"); + stbiw__wp32(o, x); + stbiw__wp32(o, y); + *o++ = 8; + *o++ = STBIW_UCHAR(ctype[n]); + *o++ = 0; + *o++ = 0; + *o++ = 0; + stbiw__wpcrc(&o,13); + + stbiw__wp32(o, zlen); + stbiw__wptag(o, "IDAT"); + STBIW_MEMMOVE(o, zlib, zlen); + o += zlen; + STBIW_FREE(zlib); + stbiw__wpcrc(&o, zlen); + + stbiw__wp32(o,0); + stbiw__wptag(o, "IEND"); + stbiw__wpcrc(&o,0); + + STBIW_ASSERT(o == out + *out_len); + + return out; +} + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes) +{ + FILE *f; + int len; + unsigned char *png = stbi_write_png_to_mem((const unsigned char *) data, stride_bytes, x, y, comp, &len); + if (png == NULL) return 0; + + f = stbiw__fopen(filename, "wb"); + if (!f) { STBIW_FREE(png); return 0; } + fwrite(png, 1, len, f); + fclose(f); + STBIW_FREE(png); + return 1; +} +#endif + +STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes) +{ + int len; + unsigned char *png = stbi_write_png_to_mem((const unsigned char *) data, stride_bytes, x, y, comp, &len); + if (png == NULL) return 0; + func(context, png, len); + STBIW_FREE(png); + return 1; +} + + +/* *************************************************************************** + * + * JPEG writer + * + * This is based on Jon Olick's jo_jpeg.cpp: + * public domain Simple, Minimalistic JPEG writer - http://www.jonolick.com/code.html + */ + +static const unsigned char stbiw__jpg_ZigZag[] = { 0,1,5,6,14,15,27,28,2,4,7,13,16,26,29,42,3,8,12,17,25,30,41,43,9,11,18, + 24,31,40,44,53,10,19,23,32,39,45,52,54,20,22,33,38,46,51,55,60,21,34,37,47,50,56,59,61,35,36,48,49,57,58,62,63 }; + +static void stbiw__jpg_writeBits(stbi__write_context *s, int *bitBufP, int *bitCntP, const unsigned short *bs) { + int bitBuf = *bitBufP, bitCnt = *bitCntP; + bitCnt += bs[1]; + bitBuf |= bs[0] << (24 - bitCnt); + while(bitCnt >= 8) { + unsigned char c = (bitBuf >> 16) & 255; + stbiw__putc(s, c); + if(c == 255) { + stbiw__putc(s, 0); + } + bitBuf <<= 8; + bitCnt -= 8; + } + *bitBufP = bitBuf; + *bitCntP = bitCnt; +} + +static void stbiw__jpg_DCT(float *d0p, float *d1p, float *d2p, float *d3p, float *d4p, float *d5p, float *d6p, float *d7p) { + float d0 = *d0p, d1 = *d1p, d2 = *d2p, d3 = *d3p, d4 = *d4p, d5 = *d5p, d6 = *d6p, d7 = *d7p; + float z1, z2, z3, z4, z5, z11, z13; + + float tmp0 = d0 + d7; + float tmp7 = d0 - d7; + float tmp1 = d1 + d6; + float tmp6 = d1 - d6; + float tmp2 = d2 + d5; + float tmp5 = d2 - d5; + float tmp3 = d3 + d4; + float tmp4 = d3 - d4; + + // Even part + float tmp10 = tmp0 + tmp3; // phase 2 + float tmp13 = tmp0 - tmp3; + float tmp11 = tmp1 + tmp2; + float tmp12 = tmp1 - tmp2; + + d0 = tmp10 + tmp11; // phase 3 + d4 = tmp10 - tmp11; + + z1 = (tmp12 + tmp13) * 0.707106781f; // c4 + d2 = tmp13 + z1; // phase 5 + d6 = tmp13 - z1; + + // Odd part + tmp10 = tmp4 + tmp5; // phase 2 + tmp11 = tmp5 + tmp6; + tmp12 = tmp6 + tmp7; + + // The rotator is modified from fig 4-8 to avoid extra negations. + z5 = (tmp10 - tmp12) * 0.382683433f; // c6 + z2 = tmp10 * 0.541196100f + z5; // c2-c6 + z4 = tmp12 * 1.306562965f + z5; // c2+c6 + z3 = tmp11 * 0.707106781f; // c4 + + z11 = tmp7 + z3; // phase 5 + z13 = tmp7 - z3; + + *d5p = z13 + z2; // phase 6 + *d3p = z13 - z2; + *d1p = z11 + z4; + *d7p = z11 - z4; + + *d0p = d0; *d2p = d2; *d4p = d4; *d6p = d6; +} + +static void stbiw__jpg_calcBits(int val, unsigned short bits[2]) { + int tmp1 = val < 0 ? -val : val; + val = val < 0 ? val-1 : val; + bits[1] = 1; + while(tmp1 >>= 1) { + ++bits[1]; + } + bits[0] = val & ((1<<bits[1])-1); +} + +static int stbiw__jpg_processDU(stbi__write_context *s, int *bitBuf, int *bitCnt, float *CDU, int du_stride, float *fdtbl, int DC, const unsigned short HTDC[256][2], const unsigned short HTAC[256][2]) { + const unsigned short EOB[2] = { HTAC[0x00][0], HTAC[0x00][1] }; + const unsigned short M16zeroes[2] = { HTAC[0xF0][0], HTAC[0xF0][1] }; + int dataOff, i, j, n, diff, end0pos, x, y; + int DU[64]; + + // DCT rows + for(dataOff=0, n=du_stride*8; dataOff<n; dataOff+=du_stride) { + stbiw__jpg_DCT(&CDU[dataOff], &CDU[dataOff+1], &CDU[dataOff+2], &CDU[dataOff+3], &CDU[dataOff+4], &CDU[dataOff+5], &CDU[dataOff+6], &CDU[dataOff+7]); + } + // DCT columns + for(dataOff=0; dataOff<8; ++dataOff) { + stbiw__jpg_DCT(&CDU[dataOff], &CDU[dataOff+du_stride], &CDU[dataOff+du_stride*2], &CDU[dataOff+du_stride*3], &CDU[dataOff+du_stride*4], + &CDU[dataOff+du_stride*5], &CDU[dataOff+du_stride*6], &CDU[dataOff+du_stride*7]); + } + // Quantize/descale/zigzag the coefficients + for(y = 0, j=0; y < 8; ++y) { + for(x = 0; x < 8; ++x,++j) { + float v; + i = y*du_stride+x; + v = CDU[i]*fdtbl[j]; + // DU[stbiw__jpg_ZigZag[j]] = (int)(v < 0 ? ceilf(v - 0.5f) : floorf(v + 0.5f)); + // ceilf() and floorf() are C99, not C89, but I /think/ they're not needed here anyway? + DU[stbiw__jpg_ZigZag[j]] = (int)(v < 0 ? v - 0.5f : v + 0.5f); + } + } + + // Encode DC + diff = DU[0] - DC; + if (diff == 0) { + stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTDC[0]); + } else { + unsigned short bits[2]; + stbiw__jpg_calcBits(diff, bits); + stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTDC[bits[1]]); + stbiw__jpg_writeBits(s, bitBuf, bitCnt, bits); + } + // Encode ACs + end0pos = 63; + for(; (end0pos>0)&&(DU[end0pos]==0); --end0pos) { + } + // end0pos = first element in reverse order !=0 + if(end0pos == 0) { + stbiw__jpg_writeBits(s, bitBuf, bitCnt, EOB); + return DU[0]; + } + for(i = 1; i <= end0pos; ++i) { + int startpos = i; + int nrzeroes; + unsigned short bits[2]; + for (; DU[i]==0 && i<=end0pos; ++i) { + } + nrzeroes = i-startpos; + if ( nrzeroes >= 16 ) { + int lng = nrzeroes>>4; + int nrmarker; + for (nrmarker=1; nrmarker <= lng; ++nrmarker) + stbiw__jpg_writeBits(s, bitBuf, bitCnt, M16zeroes); + nrzeroes &= 15; + } + stbiw__jpg_calcBits(DU[i], bits); + stbiw__jpg_writeBits(s, bitBuf, bitCnt, HTAC[(nrzeroes<<4)+bits[1]]); + stbiw__jpg_writeBits(s, bitBuf, bitCnt, bits); + } + if(end0pos != 63) { + stbiw__jpg_writeBits(s, bitBuf, bitCnt, EOB); + } + return DU[0]; +} + +static int stbi_write_jpg_core(stbi__write_context *s, int width, int height, int comp, const void* data, int quality) { + // Constants that don't pollute global namespace + static const unsigned char std_dc_luminance_nrcodes[] = {0,0,1,5,1,1,1,1,1,1,0,0,0,0,0,0,0}; + static const unsigned char std_dc_luminance_values[] = {0,1,2,3,4,5,6,7,8,9,10,11}; + static const unsigned char std_ac_luminance_nrcodes[] = {0,0,2,1,3,3,2,4,3,5,5,4,4,0,0,1,0x7d}; + static const unsigned char std_ac_luminance_values[] = { + 0x01,0x02,0x03,0x00,0x04,0x11,0x05,0x12,0x21,0x31,0x41,0x06,0x13,0x51,0x61,0x07,0x22,0x71,0x14,0x32,0x81,0x91,0xa1,0x08, + 0x23,0x42,0xb1,0xc1,0x15,0x52,0xd1,0xf0,0x24,0x33,0x62,0x72,0x82,0x09,0x0a,0x16,0x17,0x18,0x19,0x1a,0x25,0x26,0x27,0x28, + 0x29,0x2a,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x53,0x54,0x55,0x56,0x57,0x58,0x59, + 0x5a,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x83,0x84,0x85,0x86,0x87,0x88,0x89, + 0x8a,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xb2,0xb3,0xb4,0xb5,0xb6, + 0xb7,0xb8,0xb9,0xba,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xe1,0xe2, + 0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa + }; + static const unsigned char std_dc_chrominance_nrcodes[] = {0,0,3,1,1,1,1,1,1,1,1,1,0,0,0,0,0}; + static const unsigned char std_dc_chrominance_values[] = {0,1,2,3,4,5,6,7,8,9,10,11}; + static const unsigned char std_ac_chrominance_nrcodes[] = {0,0,2,1,2,4,4,3,4,7,5,4,4,0,1,2,0x77}; + static const unsigned char std_ac_chrominance_values[] = { + 0x00,0x01,0x02,0x03,0x11,0x04,0x05,0x21,0x31,0x06,0x12,0x41,0x51,0x07,0x61,0x71,0x13,0x22,0x32,0x81,0x08,0x14,0x42,0x91, + 0xa1,0xb1,0xc1,0x09,0x23,0x33,0x52,0xf0,0x15,0x62,0x72,0xd1,0x0a,0x16,0x24,0x34,0xe1,0x25,0xf1,0x17,0x18,0x19,0x1a,0x26, + 0x27,0x28,0x29,0x2a,0x35,0x36,0x37,0x38,0x39,0x3a,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x53,0x54,0x55,0x56,0x57,0x58, + 0x59,0x5a,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x82,0x83,0x84,0x85,0x86,0x87, + 0x88,0x89,0x8a,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xb2,0xb3,0xb4, + 0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda, + 0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa + }; + // Huffman tables + static const unsigned short YDC_HT[256][2] = { {0,2},{2,3},{3,3},{4,3},{5,3},{6,3},{14,4},{30,5},{62,6},{126,7},{254,8},{510,9}}; + static const unsigned short UVDC_HT[256][2] = { {0,2},{1,2},{2,2},{6,3},{14,4},{30,5},{62,6},{126,7},{254,8},{510,9},{1022,10},{2046,11}}; + static const unsigned short YAC_HT[256][2] = { + {10,4},{0,2},{1,2},{4,3},{11,4},{26,5},{120,7},{248,8},{1014,10},{65410,16},{65411,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {12,4},{27,5},{121,7},{502,9},{2038,11},{65412,16},{65413,16},{65414,16},{65415,16},{65416,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {28,5},{249,8},{1015,10},{4084,12},{65417,16},{65418,16},{65419,16},{65420,16},{65421,16},{65422,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {58,6},{503,9},{4085,12},{65423,16},{65424,16},{65425,16},{65426,16},{65427,16},{65428,16},{65429,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {59,6},{1016,10},{65430,16},{65431,16},{65432,16},{65433,16},{65434,16},{65435,16},{65436,16},{65437,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {122,7},{2039,11},{65438,16},{65439,16},{65440,16},{65441,16},{65442,16},{65443,16},{65444,16},{65445,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {123,7},{4086,12},{65446,16},{65447,16},{65448,16},{65449,16},{65450,16},{65451,16},{65452,16},{65453,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {250,8},{4087,12},{65454,16},{65455,16},{65456,16},{65457,16},{65458,16},{65459,16},{65460,16},{65461,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {504,9},{32704,15},{65462,16},{65463,16},{65464,16},{65465,16},{65466,16},{65467,16},{65468,16},{65469,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {505,9},{65470,16},{65471,16},{65472,16},{65473,16},{65474,16},{65475,16},{65476,16},{65477,16},{65478,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {506,9},{65479,16},{65480,16},{65481,16},{65482,16},{65483,16},{65484,16},{65485,16},{65486,16},{65487,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {1017,10},{65488,16},{65489,16},{65490,16},{65491,16},{65492,16},{65493,16},{65494,16},{65495,16},{65496,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {1018,10},{65497,16},{65498,16},{65499,16},{65500,16},{65501,16},{65502,16},{65503,16},{65504,16},{65505,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {2040,11},{65506,16},{65507,16},{65508,16},{65509,16},{65510,16},{65511,16},{65512,16},{65513,16},{65514,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {65515,16},{65516,16},{65517,16},{65518,16},{65519,16},{65520,16},{65521,16},{65522,16},{65523,16},{65524,16},{0,0},{0,0},{0,0},{0,0},{0,0}, + {2041,11},{65525,16},{65526,16},{65527,16},{65528,16},{65529,16},{65530,16},{65531,16},{65532,16},{65533,16},{65534,16},{0,0},{0,0},{0,0},{0,0},{0,0} + }; + static const unsigned short UVAC_HT[256][2] = { + {0,2},{1,2},{4,3},{10,4},{24,5},{25,5},{56,6},{120,7},{500,9},{1014,10},{4084,12},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {11,4},{57,6},{246,8},{501,9},{2038,11},{4085,12},{65416,16},{65417,16},{65418,16},{65419,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {26,5},{247,8},{1015,10},{4086,12},{32706,15},{65420,16},{65421,16},{65422,16},{65423,16},{65424,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {27,5},{248,8},{1016,10},{4087,12},{65425,16},{65426,16},{65427,16},{65428,16},{65429,16},{65430,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {58,6},{502,9},{65431,16},{65432,16},{65433,16},{65434,16},{65435,16},{65436,16},{65437,16},{65438,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {59,6},{1017,10},{65439,16},{65440,16},{65441,16},{65442,16},{65443,16},{65444,16},{65445,16},{65446,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {121,7},{2039,11},{65447,16},{65448,16},{65449,16},{65450,16},{65451,16},{65452,16},{65453,16},{65454,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {122,7},{2040,11},{65455,16},{65456,16},{65457,16},{65458,16},{65459,16},{65460,16},{65461,16},{65462,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {249,8},{65463,16},{65464,16},{65465,16},{65466,16},{65467,16},{65468,16},{65469,16},{65470,16},{65471,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {503,9},{65472,16},{65473,16},{65474,16},{65475,16},{65476,16},{65477,16},{65478,16},{65479,16},{65480,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {504,9},{65481,16},{65482,16},{65483,16},{65484,16},{65485,16},{65486,16},{65487,16},{65488,16},{65489,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {505,9},{65490,16},{65491,16},{65492,16},{65493,16},{65494,16},{65495,16},{65496,16},{65497,16},{65498,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {506,9},{65499,16},{65500,16},{65501,16},{65502,16},{65503,16},{65504,16},{65505,16},{65506,16},{65507,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {2041,11},{65508,16},{65509,16},{65510,16},{65511,16},{65512,16},{65513,16},{65514,16},{65515,16},{65516,16},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}, + {16352,14},{65517,16},{65518,16},{65519,16},{65520,16},{65521,16},{65522,16},{65523,16},{65524,16},{65525,16},{0,0},{0,0},{0,0},{0,0},{0,0}, + {1018,10},{32707,15},{65526,16},{65527,16},{65528,16},{65529,16},{65530,16},{65531,16},{65532,16},{65533,16},{65534,16},{0,0},{0,0},{0,0},{0,0},{0,0} + }; + static const int YQT[] = {16,11,10,16,24,40,51,61,12,12,14,19,26,58,60,55,14,13,16,24,40,57,69,56,14,17,22,29,51,87,80,62,18,22, + 37,56,68,109,103,77,24,35,55,64,81,104,113,92,49,64,78,87,103,121,120,101,72,92,95,98,112,100,103,99}; + static const int UVQT[] = {17,18,24,47,99,99,99,99,18,21,26,66,99,99,99,99,24,26,56,99,99,99,99,99,47,66,99,99,99,99,99,99, + 99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99}; + static const float aasf[] = { 1.0f * 2.828427125f, 1.387039845f * 2.828427125f, 1.306562965f * 2.828427125f, 1.175875602f * 2.828427125f, + 1.0f * 2.828427125f, 0.785694958f * 2.828427125f, 0.541196100f * 2.828427125f, 0.275899379f * 2.828427125f }; + + int row, col, i, k, subsample; + float fdtbl_Y[64], fdtbl_UV[64]; + unsigned char YTable[64], UVTable[64]; + + if(!data || !width || !height || comp > 4 || comp < 1) { + return 0; + } + + quality = quality ? quality : 90; + subsample = quality <= 90 ? 1 : 0; + quality = quality < 1 ? 1 : quality > 100 ? 100 : quality; + quality = quality < 50 ? 5000 / quality : 200 - quality * 2; + + for(i = 0; i < 64; ++i) { + int uvti, yti = (YQT[i]*quality+50)/100; + YTable[stbiw__jpg_ZigZag[i]] = (unsigned char) (yti < 1 ? 1 : yti > 255 ? 255 : yti); + uvti = (UVQT[i]*quality+50)/100; + UVTable[stbiw__jpg_ZigZag[i]] = (unsigned char) (uvti < 1 ? 1 : uvti > 255 ? 255 : uvti); + } + + for(row = 0, k = 0; row < 8; ++row) { + for(col = 0; col < 8; ++col, ++k) { + fdtbl_Y[k] = 1 / (YTable [stbiw__jpg_ZigZag[k]] * aasf[row] * aasf[col]); + fdtbl_UV[k] = 1 / (UVTable[stbiw__jpg_ZigZag[k]] * aasf[row] * aasf[col]); + } + } + + // Write Headers + { + static const unsigned char head0[] = { 0xFF,0xD8,0xFF,0xE0,0,0x10,'J','F','I','F',0,1,1,0,0,1,0,1,0,0,0xFF,0xDB,0,0x84,0 }; + static const unsigned char head2[] = { 0xFF,0xDA,0,0xC,3,1,0,2,0x11,3,0x11,0,0x3F,0 }; + const unsigned char head1[] = { 0xFF,0xC0,0,0x11,8,(unsigned char)(height>>8),STBIW_UCHAR(height),(unsigned char)(width>>8),STBIW_UCHAR(width), + 3,1,(unsigned char)(subsample?0x22:0x11),0,2,0x11,1,3,0x11,1,0xFF,0xC4,0x01,0xA2,0 }; + s->func(s->context, (void*)head0, sizeof(head0)); + s->func(s->context, (void*)YTable, sizeof(YTable)); + stbiw__putc(s, 1); + s->func(s->context, UVTable, sizeof(UVTable)); + s->func(s->context, (void*)head1, sizeof(head1)); + s->func(s->context, (void*)(std_dc_luminance_nrcodes+1), sizeof(std_dc_luminance_nrcodes)-1); + s->func(s->context, (void*)std_dc_luminance_values, sizeof(std_dc_luminance_values)); + stbiw__putc(s, 0x10); // HTYACinfo + s->func(s->context, (void*)(std_ac_luminance_nrcodes+1), sizeof(std_ac_luminance_nrcodes)-1); + s->func(s->context, (void*)std_ac_luminance_values, sizeof(std_ac_luminance_values)); + stbiw__putc(s, 1); // HTUDCinfo + s->func(s->context, (void*)(std_dc_chrominance_nrcodes+1), sizeof(std_dc_chrominance_nrcodes)-1); + s->func(s->context, (void*)std_dc_chrominance_values, sizeof(std_dc_chrominance_values)); + stbiw__putc(s, 0x11); // HTUACinfo + s->func(s->context, (void*)(std_ac_chrominance_nrcodes+1), sizeof(std_ac_chrominance_nrcodes)-1); + s->func(s->context, (void*)std_ac_chrominance_values, sizeof(std_ac_chrominance_values)); + s->func(s->context, (void*)head2, sizeof(head2)); + } + + // Encode 8x8 macroblocks + { + static const unsigned short fillBits[] = {0x7F, 7}; + int DCY=0, DCU=0, DCV=0; + int bitBuf=0, bitCnt=0; + // comp == 2 is grey+alpha (alpha is ignored) + int ofsG = comp > 2 ? 1 : 0, ofsB = comp > 2 ? 2 : 0; + const unsigned char *dataR = (const unsigned char *)data; + const unsigned char *dataG = dataR + ofsG; + const unsigned char *dataB = dataR + ofsB; + int x, y, pos; + if(subsample) { + for(y = 0; y < height; y += 16) { + for(x = 0; x < width; x += 16) { + float Y[256], U[256], V[256]; + for(row = y, pos = 0; row < y+16; ++row) { + // row >= height => use last input row + int clamped_row = (row < height) ? row : height - 1; + int base_p = (stbi__flip_vertically_on_write ? (height-1-clamped_row) : clamped_row)*width*comp; + for(col = x; col < x+16; ++col, ++pos) { + // if col >= width => use pixel from last input column + int p = base_p + ((col < width) ? col : (width-1))*comp; + float r = dataR[p], g = dataG[p], b = dataB[p]; + Y[pos]= +0.29900f*r + 0.58700f*g + 0.11400f*b - 128; + U[pos]= -0.16874f*r - 0.33126f*g + 0.50000f*b; + V[pos]= +0.50000f*r - 0.41869f*g - 0.08131f*b; + } + } + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+0, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT); + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+8, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT); + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+128, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT); + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y+136, 16, fdtbl_Y, DCY, YDC_HT, YAC_HT); + + // subsample U,V + { + float subU[64], subV[64]; + int yy, xx; + for(yy = 0, pos = 0; yy < 8; ++yy) { + for(xx = 0; xx < 8; ++xx, ++pos) { + int j = yy*32+xx*2; + subU[pos] = (U[j+0] + U[j+1] + U[j+16] + U[j+17]) * 0.25f; + subV[pos] = (V[j+0] + V[j+1] + V[j+16] + V[j+17]) * 0.25f; + } + } + DCU = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, subU, 8, fdtbl_UV, DCU, UVDC_HT, UVAC_HT); + DCV = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, subV, 8, fdtbl_UV, DCV, UVDC_HT, UVAC_HT); + } + } + } + } else { + for(y = 0; y < height; y += 8) { + for(x = 0; x < width; x += 8) { + float Y[64], U[64], V[64]; + for(row = y, pos = 0; row < y+8; ++row) { + // row >= height => use last input row + int clamped_row = (row < height) ? row : height - 1; + int base_p = (stbi__flip_vertically_on_write ? (height-1-clamped_row) : clamped_row)*width*comp; + for(col = x; col < x+8; ++col, ++pos) { + // if col >= width => use pixel from last input column + int p = base_p + ((col < width) ? col : (width-1))*comp; + float r = dataR[p], g = dataG[p], b = dataB[p]; + Y[pos]= +0.29900f*r + 0.58700f*g + 0.11400f*b - 128; + U[pos]= -0.16874f*r - 0.33126f*g + 0.50000f*b; + V[pos]= +0.50000f*r - 0.41869f*g - 0.08131f*b; + } + } + + DCY = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, Y, 8, fdtbl_Y, DCY, YDC_HT, YAC_HT); + DCU = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, U, 8, fdtbl_UV, DCU, UVDC_HT, UVAC_HT); + DCV = stbiw__jpg_processDU(s, &bitBuf, &bitCnt, V, 8, fdtbl_UV, DCV, UVDC_HT, UVAC_HT); + } + } + } + + // Do the bit alignment of the EOI marker + stbiw__jpg_writeBits(s, &bitBuf, &bitCnt, fillBits); + } + + // EOI + stbiw__putc(s, 0xFF); + stbiw__putc(s, 0xD9); + + return 1; +} + +STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality) +{ + stbi__write_context s = { 0 }; + stbi__start_write_callbacks(&s, func, context); + return stbi_write_jpg_core(&s, x, y, comp, (void *) data, quality); +} + + +#ifndef STBI_WRITE_NO_STDIO +STBIWDEF int stbi_write_jpg(char const *filename, int x, int y, int comp, const void *data, int quality) +{ + stbi__write_context s = { 0 }; + if (stbi__start_write_file(&s,filename)) { + int r = stbi_write_jpg_core(&s, x, y, comp, data, quality); + stbi__end_write_file(&s); + return r; + } else + return 0; +} +#endif + +#endif // STB_IMAGE_WRITE_IMPLEMENTATION + +/* Revision history + 1.14 (2020-02-02) updated JPEG writer to downsample chroma channels + 1.13 + 1.12 + 1.11 (2019-08-11) + + 1.10 (2019-02-07) + support utf8 filenames in Windows; fix warnings and platform ifdefs + 1.09 (2018-02-11) + fix typo in zlib quality API, improve STB_I_W_STATIC in C++ + 1.08 (2018-01-29) + add stbi__flip_vertically_on_write, external zlib, zlib quality, choose PNG filter + 1.07 (2017-07-24) + doc fix + 1.06 (2017-07-23) + writing JPEG (using Jon Olick's code) + 1.05 ??? + 1.04 (2017-03-03) + monochrome BMP expansion + 1.03 ??? + 1.02 (2016-04-02) + avoid allocating large structures on the stack + 1.01 (2016-01-16) + STBIW_REALLOC_SIZED: support allocators with no realloc support + avoid race-condition in crc initialization + minor compile issues + 1.00 (2015-09-14) + installable file IO function + 0.99 (2015-09-13) + warning fixes; TGA rle support + 0.98 (2015-04-08) + added STBIW_MALLOC, STBIW_ASSERT etc + 0.97 (2015-01-18) + fixed HDR asserts, rewrote HDR rle logic + 0.96 (2015-01-17) + add HDR output + fix monochrome BMP + 0.95 (2014-08-17) + add monochrome TGA output + 0.94 (2014-05-31) + rename private functions to avoid conflicts with stb_image.h + 0.93 (2014-05-27) + warning fixes + 0.92 (2010-08-01) + casts to unsigned char to fix warnings + 0.91 (2010-07-17) + first public release + 0.90 first internal release +*/ + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ @@ -0,0 +1,93 @@ +#include <time.h> +#include <errno.h> +#include <sys/stat.h> +#if _WIN32 +#include <sysinfoapi.h> +#endif + +static struct timespec time_last_modified(char const *filename) { +#if __unix__ + struct stat statbuf = {0}; + stat(filename, &statbuf); + return statbuf.st_mtim; +#else + // windows' _stat does not have st_mtim + struct _stat statbuf = {0}; + struct timespec ts = {0}; + _stat(filename, &statbuf); + ts.tv_sec = statbuf.st_mtime; + return ts; +#endif +} + +static int timespec_cmp(struct timespec a, struct timespec b) { + if (a.tv_sec > b.tv_sec) return 1; + if (a.tv_sec < b.tv_sec) return -1; + if (a.tv_nsec > b.tv_nsec) return 1; + if (a.tv_nsec < b.tv_nsec) return -1; + return 0; +} + +static bool timespec_eq(struct timespec a, struct timespec b) { + return timespec_cmp(a, b) == 0; +} + +static struct timespec timespec_max(struct timespec a, struct timespec b) { + return timespec_cmp(a, b) < 0 ? b : a; +} + +static double timespec_to_seconds(struct timespec ts) { + return (double)ts.tv_sec + + (double)ts.tv_nsec * 1e-9; +} + +// returns a-b in seconds +static double timespec_sub(struct timespec a, struct timespec b) { + return (double)(a.tv_sec - b.tv_sec) + + (double)(a.tv_nsec - b.tv_nsec) * 1e-9; +} + +static struct timespec time_get(void) { + struct timespec ts = {0}; +#if _WIN32 + timespec_get(&ts, TIME_UTC); +#else + clock_gettime(CLOCK_REALTIME, &ts); +#endif + return ts; +} + +static double time_get_seconds(void) { + return timespec_to_seconds(time_get()); +} + +// sleep for a certain number of nanoseconds +static void sleep_ns(u64 ns) { +#if __unix__ + struct timespec rem = {0}, req = { + (time_t)(ns / 1000000000), + (long)(ns % 1000000000) + }; + + while (nanosleep(&req, &rem) == EINTR) // sleep interrupted by signal + req = rem; +#else + // windows.... + Sleep((DWORD)(ns / 1000000)); +#endif +} + +// sleep for microseconds +static void time_sleep_us(u64 us) { + sleep_ns(us * 1000); +} + +// sleep for milliseconds +static void time_sleep_ms(u64 ms) { + sleep_ns(ms * 1000000); +} + +// sleep for seconds +static void time_sleep_s(u64 s) { + sleep_ns(s * 1000000000); +} @@ -0,0 +1,339 @@ +#if _WIN32 +#include <intrin.h> +#include <direct.h> +#elif __unix__ +#include <unistd.h> +#else +#error "Unrecognized operating system." +#endif +#include <string.h> +#include <stdlib.h> + +static u8 util_popcount(u64 x) { +#ifdef __GNUC__ + return (u8)__builtin_popcountll(x); +#else + u8 count = 0; + while (x) { + x &= x-1; + ++count; + } + return count; +#endif +} + +static u8 util_count_leading_zeroes32(u32 x) { + if (x == 0) return 32; // GCC's __builtin_clz is undefined for x = 0 +#if __GNUC__ && UINT_MAX == 4294967295 + return (u8)__builtin_clz(x); +#elif _WIN32 && UINT_MAX == 4294967295 + return (u8)__lzcnt(x); +#else + u8 count = 0; + for (int i = 31; i >= 0; --i) { + if (x & ((u32)1<<i)) { + break; + } + ++count; + } + return count; +#endif +} + +static bool util_is_power_of_2(u64 x) { + return util_popcount(x) == 1; +} + +// for finding a character in a char32 string +static char32_t *util_mem32chr(char32_t *s, char32_t c, size_t n) { + for (size_t i = 0; i < n; ++i) { + if (s[i] == c) { + return &s[i]; + } + } + return NULL; +} + +static char32_t const *util_mem32chr_const(char32_t const *s, char32_t c, size_t n) { + for (size_t i = 0; i < n; ++i) { + if (s[i] == c) { + return &s[i]; + } + } + return NULL; +} + +static bool str_is_prefix(char const *str, char const *prefix) { + return strncmp(str, prefix, strlen(prefix)) == 0; +} + +static bool streq(char const *a, char const *b) { + return strcmp(a, b) == 0; +} + +// duplicates at most n characters from src +static char *strn_dup(char const *src, size_t n) { + size_t len = strlen(src); + if (n > len) + n = len; + char *ret = malloc(n + 1); + if (ret) { + memcpy(ret, src, n); + ret[n] = 0; + } + return ret; +} + +// duplicates a null-terminated string. the returned string should be passed to free() +static char *str_dup(char const *src) { + return strn_dup(src, SIZE_MAX); +} + +// like snprintf, but not screwed up on windows +#define str_printf(str, size, ...) (str)[(size) - 1] = '\0', snprintf((str), (size) - 1, __VA_ARGS__) +// like snprintf, but the size is taken to be the length of the array str. +// first, check that str is actually an array +#define strbuf_printf(str, ...) assert(sizeof str != 4 && sizeof str != 8), \ + str_printf(str, sizeof str, __VA_ARGS__) +#define str_catf(str, size, ...) str_printf((str) + strlen(str), (size) - strlen(str), __VA_ARGS__) +#define strbuf_catf(str, ...) assert(sizeof str != 4 && sizeof str != 8), \ + str_catf(str, sizeof str, __VA_ARGS__) + +// on 16-bit systems, this is 16383. on 32/64-bit systems, this is 1073741823 +// it is unusual to have a string that long. +#define STRLEN_SAFE_MAX (UINT_MAX >> 2) + +// safer version of strncat. dst_sz includes a null terminator. +static void strn_cat(char *dst, size_t dst_sz, char const *src, size_t src_len) { + size_t dst_len = strlen(dst); + + // make sure dst_len + src_len + 1 doesn't overflow + if (dst_len > STRLEN_SAFE_MAX || src_len > STRLEN_SAFE_MAX) { + assert(0); + return; + } + + if (dst_len >= dst_sz) { + // dst doesn't actually contain a null-terminated string! + assert(0); + return; + } + + if (dst_len + src_len + 1 > dst_sz) { + // number of bytes left in dst, not including null terminator + size_t n = dst_sz - dst_len - 1; + memcpy(dst + dst_len, src, n); + dst[dst_sz - 1] = 0; // dst_len + n == dst_sz - 1 + } else { + memcpy(dst + dst_len, src, src_len); + dst[dst_len + src_len] = 0; + } +} + +// safer version of strcat. dst_sz includes a null terminator. +static void str_cat(char *dst, size_t dst_sz, char const *src) { + strn_cat(dst, dst_sz, src, strlen(src)); +} + +// safer version of strncpy. dst_sz includes a null terminator. +static void str_cpy(char *dst, size_t dst_sz, char const *src) { + size_t srclen = strlen(src); + size_t n = srclen; // number of bytes to copy + + if (dst_sz == 0) { + assert(0); + return; + } + + if (dst_sz-1 < n) + n = dst_sz-1; + memcpy(dst, src, n); + dst[n] = 0; +} + +#define strbuf_cpy(dst, src) str_cpy(dst, sizeof dst, src) + +// advances str to the start of the next UTF8 character +static void utf8_next_char_const(char const **str) { + if (**str) { + do { + ++*str; + } while (((u8)(**str) & 0xC0) == 0x80); // while we are on a continuation byte + } +} + +static void print_bytes(u8 *bytes, size_t n) { + u8 *b, *end; + for (b = bytes, end = bytes + n; b != end; ++b) + printf("%x ", *b); + printf("\n"); +} + +/* +does this predicate hold for all the characters of s. predicate is int (*)(int) instead +of bool (*)(char) so that you can pass isprint, etc. to it. +*/ +static bool str_satisfies(char const *s, int (*predicate)(int)) { + char const *p; + for (p = s; *p; ++p) + if (!predicate(*p)) + return false; + return true; +} + + +static int strcmp_case_insensitive(char const *a, char const *b) { +#if _WIN32 + return _stricmp(a, b); +#else + return strcasecmp(a, b); +#endif +} + +// function to be passed into qsort for case insensitive sorting +static int str_qsort_case_insensitive_cmp(const void *av, const void *bv) { + char const *const *a = av, *const *b = bv; + return strcmp_case_insensitive(*a, *b); +} + +static void *qsort_ctx_arg; +static int (*qsort_ctx_cmp)(void *, const void *, const void *); +static int qsort_with_context_cmp(const void *a, const void *b) { + return qsort_ctx_cmp(qsort_ctx_arg, a, b); +} + +static void qsort_with_context(void *base, size_t nmemb, size_t size, int (*compar)(void *, const void *, const void *), void *arg) { + // @TODO(eventually): write this yourself + // just use global variables. hopefully we don't try to run this in something multithreaded! + qsort_ctx_arg = arg; + qsort_ctx_cmp = compar; + qsort(base, nmemb, size, qsort_with_context_cmp); +} + +// the actual file name part of the path; get rid of the containing directory. +// NOTE: the returned string is part of path, so you don't need to free it or anything. +static char const *path_filename(char const *path) { + char const *last_path_sep = strrchr(path, PATH_SEPARATOR); + if (last_path_sep) + return last_path_sep + 1; + // (a relative path with no path separators) + return path; +} + +static bool path_is_absolute(char const *path) { + return path[0] == PATH_SEPARATOR + #if _WIN32 + || path[1] == ':' + #endif + ; +} + +// assuming `dir` is an absolute path, returns the absolute path of `relpath`, relative to `dir`. +static void path_full(char const *dir, char const *relpath, char *abspath, size_t abspath_size) { + assert(abspath_size); + if (path_is_absolute(relpath)) { + if (strchr(ALL_PATH_SEPARATORS, relpath[0])) { + // make sure that on windows, if dir's drive is C: the absolute path of \a is c:\a + abspath[0] = '\0'; + strn_cat(abspath, abspath_size, dir, strcspn(dir, ALL_PATH_SEPARATORS)); + str_cat(abspath, abspath_size, relpath); + } else { + str_cpy(abspath, abspath_size, relpath); + } + return; + } + str_cpy(abspath, abspath_size, dir); + + while (1) { + size_t component_len = strcspn(relpath, ALL_PATH_SEPARATORS); + char const *component_end = relpath + component_len; + + size_t len = strlen(abspath); + if (component_len == 1 && relpath[0] == '.') { + // ., do nothing + } else if (component_len == 2 && relpath[0] == '.' && relpath[1] == '.') { + // .. + char *lastsep = strrchr(abspath, PATH_SEPARATOR); + if (lastsep == abspath) + lastsep[1] = '\0'; + else + lastsep[0] = '\0'; + } else { + if (abspath[len - 1] != PATH_SEPARATOR) + str_cat(abspath, abspath_size, PATH_SEPARATOR_STR); + strn_cat(abspath, abspath_size, relpath, component_len); + } + if (*component_end == 0) + break; + else + relpath = component_end + 1; + } +} + +// returns true if the paths are the same. +// handles the fact that paths are case insensitive on windows. +// treats links as different from the files they point to. +static bool paths_eq(char const *path1, char const *path2) { +#if _WIN32 + return _stricmp(path1, path2) == 0; +#else + return streq(path1, path2); +#endif +} + +static void change_directory(char const *path) { +#if _WIN32 + _chdir(path); +#else + chdir(path); +#endif +} + +// returns true on success +static bool copy_file(char const *src, char const *dst) { + bool success = false; + FILE *src_file = fopen(src, "rb"); + if (src_file) { + FILE *dst_file = fopen(dst, "wb"); + if (dst_file) { + char buf[1024]; + while (1) { + size_t count = fread(buf, 1, sizeof buf, src_file); + fwrite(buf, 1, count, dst_file); + if (count < sizeof buf) break; + } + success = !ferror(src_file) && !ferror(dst_file); + fclose(dst_file); + } + fclose(src_file); + } + return success; +} + +// Read the binary contents of the given file as a null-terminated string. +// The returned string should be freed. +// Returns NULL on error. +static char *read_file_contents(char const *filename) { + FILE *file = fopen(filename, "rb"); + if (file) { + fseek(file, 0, SEEK_END); + size_t file_size = (size_t)ftell(file); + fseek(file, 0, SEEK_SET); + char *contents = malloc(file_size + 1); + if (contents) { + size_t bytes_read = fread(contents, 1, file_size, file); + if (bytes_read == file_size) { + contents[file_size] = '\0'; + return contents; + } else { + // read error + free(contents); + contents = NULL; + } + } + fclose(file); + return contents; + } else { + return NULL; + } +} |