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#include "../include/resource_loader.h"
#include "../include/alloc.h"
#include <mgl/system/fileutils.h>
#include <mgl/graphics/font.h>
#include <stdio.h>
/* Note: max font size: 100 */
static mgl_memory_mapped_file *font_file_cache[4];
static mgl_font *font_cache[4][100];
/* TODO: If font fails to load, then create a new font with only a squares that represents all glyphs */
/* TODO: Load default system font from fontconfig files */
mgl_font* mgui_get_font(mgui_font_type type, unsigned int character_size) {
if(character_size > 0)
--character_size;
/* TODO: Make this work for character size >= 100 */
if(character_size >= 100)
character_size = 99;
mgl_memory_mapped_file *font_file = font_file_cache[type];
if(!font_file) {
const char *font_paths[2];
size_t num_font_paths = 0;
const char *font_name = "";
switch(type) {
case MGUI_FONT_LATIN: {
font_paths[0] = "/usr/share/fonts/noto/NotoSans-Regular.ttf";
font_paths[1] = "/usr/share/fonts/truetype/noto/NotoSans-Regular.ttf";
num_font_paths = 2;
font_name = "NotoSans-Regular.ttf";
break;
}
case MGUI_FONT_LATIN_BOLD: {
font_paths[0] = "/usr/share/fonts/noto/NotoSans-Bold.ttf";
font_paths[1] = "/usr/share/fonts/truetype/noto/NotoSans-Bold.ttf";
num_font_paths = 2;
font_name = "NotoSans-Bold.ttf";
break;
}
case MGUI_FONT_CJK: {
font_paths[0] = "/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc";
font_paths[1] = "/usr/share/fonts/truetype/noto-cjk/NotoSansCJK-Regular.ttc";
num_font_paths = 2;
font_name = "NotoSansCJK-Regular.ttc";
break;
}
}
mgl_memory_mapped_file *new_font_file = mgui_alloc(sizeof(mgl_memory_mapped_file));
mgl_memory_mapped_file_load_options load_options = {
.readable = true,
.writable = false
};
bool successfully_loaded_file = false;
for(size_t i = 0; i < num_font_paths; ++i) {
if(mgl_mapped_file_load(font_paths[i], new_font_file, &load_options) == 0) {
successfully_loaded_file = true;
break;
}
}
if(!successfully_loaded_file)
fprintf(stderr, "mgui warning: mgui_get_font failed to load font %s\n", font_name);
font_file_cache[type] = new_font_file;
font_file = new_font_file;
}
if(!font_file->data)
return NULL;
mgl_font *font = font_cache[type][character_size];
if(!font) {
mgl_font *new_font = mgui_alloc(sizeof(mgl_font));
if(mgl_font_load_from_file(new_font, font_file, character_size) != 0)
fprintf(stderr, "mgui warning: mgui_get_font failed to load font %d\n", (int)type);
font_cache[type][character_size] = new_font;
font = new_font;
}
return font;
}
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