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#include "base.h"
no_warn_start
#include <SDL2/SDL.h>
no_warn_end
#include <GL/gl.h>
#include <locale.h>
#include "text.h"
#include "buffer.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 to stderr
if (SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error", buf, NULL) < 0) {
fprintf(stderr, "%s\n", buf);
}
exit(EXIT_FAILURE);
}
int main(void) {
setlocale(LC_ALL, ""); // allow unicode
if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER) < 0)
die("%s", SDL_GetError());
SDL_Window *window = SDL_CreateWindow("ted", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 1280, 720, SDL_WINDOW_SHOWN|SDL_WINDOW_OPENGL);
if (!window)
die("%s", SDL_GetError());
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GLContext *glctx = SDL_GL_CreateContext(window);
if (!glctx) {
die("%s", SDL_GetError());
}
SDL_GL_SetSwapInterval(1); // vsync
Font *font = text_font_load("assets/font.ttf", 24);
if (!font) {
die("Couldn't load font: %s", text_get_err());
}
bool quit = false;
TextBuffer text_buffer;
{
FILE *fp = fopen("main.c", "r");
assert(fp);
bool success = text_buffer_load_file(&text_buffer, fp);
fclose(fp);
if (!success)
die("Error loading file.");
}
while (!quit) {
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
quit = true;
break;
}
}
int window_width = 0, window_height = 0;
SDL_GetWindowSize(window, &window_width, &window_height);
// set up GL
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glViewport(0, 0, window_width, window_height);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glOrtho(0, window_width, 0, window_height, -1, +1);
glClearColor(0, 0, 0, 1);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1,1,1);
text_render(font, u8"hőello☐øλㄔ☺☹", 50, 50);
if (text_has_err()) {
printf("Text error: %s\n", text_get_err());
break;
}
//text_buffer_print_debug(&text_buffer);
SDL_GL_SwapWindow(window);
}
SDL_GL_DeleteContext(glctx);
SDL_DestroyWindow(window);
SDL_Quit();
text_buffer_free(&text_buffer);
text_font_free(font);
return 0;
}
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