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#include "base.h"
no_warn_start
#include "stb_truetype.h"
no_warn_end
#include <stdarg.h>
#include <stdlib.h>
typedef struct {
float char_height;
u32 nchars;
GLuint texture;
stbtt_bakedchar chars[];
} Font;
static char text_err[200];
static void text_clear_err(void) {
text_err[0] = '\0';
}
static void text_set_err(char const *fmt, ...) {
va_list args;
va_start(args, fmt);
vsnprintf(text_err, sizeof text_err - 1, fmt, args);
va_end(args);
}
static bool text_has_err(void) {
return text_err[0] != '\0';
}
char const *text_get_err(void) {
return text_err;
}
Font *text_font_load(char const *ttf_filename, float font_size) {
Font *font = NULL;
u32 nchars = 128;
FILE *ttf_file = fopen(ttf_filename, "rb");
text_clear_err();
if (ttf_file) {
fseek(ttf_file, 0, SEEK_END);
u32 file_size = (u32)ftell(ttf_file);
if (file_size < (50UL<<20)) { // fonts aren't usually bigger than 50 MB
char *file_data = calloc(1, file_size);
Font *font = calloc(1, sizeof *font + nchars * sizeof *font->chars);
if (file_data && font) {
font->nchars = nchars;
font->char_height = font_size;
stbtt_
} else {
text_set_err("Not enough memory for font.");
}
free(file_data);
if (text_has_err())
free(font);
fclose(ttf_file);
} else {
text_set_err("Font file too big (%u megabytes).", (uint)(file_size >> 20));
}
} else {
text_set_err("Couldn't open font file: %s.", ttf_filename);
}
return NULL;
}
void text_render(Font *font, char const *text, float x, float y) {
}
void text_get_size(Font *font, char const *text, float *width, float *height) {
}
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