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#pragma once
#include "atlas.h"
#include "cglm/types.h"
#include "freetype/freetype.h"
#include "hash.h"
#include "sokol_gfx.h"
#include "utils.h"
struct text_vertex_s {
vec2 pos;
vec2 uv;
};
typedef u32 codepoint_t;
enum font_context_error_e : u8 {
FONT_CONTEXT_ERROR_NONE = 0,
FONT_CONTEXT_ERROR_LOAD_LIBRARY,
FONT_CONTEXT_ERROR_CREATE_SAMPLER,
FONT_CONTEXT_ERROR_CREATE_SHADER,
FONT_CONTEXT_ERROR_CREATE_PIPELINE,
};
struct font_context_s {
FT_Library ft;
struct sg_pipeline pipeline;
struct sg_sampler sampler;
};
enum font_context_error_e wayc_font_context_init(
struct font_context_s* context);
void wayc_font_context_deinit(struct font_context_s* context);
struct glyph_s {
vec2 uv0, uv1;
vec2 bearing;
f32 advance;
};
static inline void glyph_print(struct glyph_s* glyph) {
u32 uv0x = WAYC_X(glyph->uv0);
u32 uv0y = WAYC_Y(glyph->uv0);
u32 uv1x = WAYC_X(glyph->uv1);
u32 uv1y = WAYC_Y(glyph->uv1);
fprintf(stderr,
"uv0: (%u, %u), uv1: (%u, %u), bearing: (%f, %f), advance: %f\n",
uv0x, uv0y, uv1x, uv1y, WAYC_X(glyph->bearing),
WAYC_Y(glyph->bearing), glyph->advance);
}
enum font_error_e : u8 {
FONT_ERROR_NONE = 0,
FONT_ERROR_LOAD_FACE,
FONT_ERROR_ATLAS_FAILED,
FONT_ERROR_LOAD_GLYPH,
};
struct font_s {
FT_Face face;
u32 font_size;
struct atlas_s atlas;
struct hashmap_s<codepoint_t, struct glyph_s> cached;
};
enum font_error_e wayc_font_init(struct font_s* font,
struct font_context_s* context,
const char* path, u32 font_size,
u32 atlas_width, u32 atlas_height);
enum font_error_e wayc_font_render(struct font_s* font, codepoint_t codepoint,
struct glyph_s* glyph);
static inline enum font_error_e wayc_font_flush(struct font_s* font) {
enum atlas_error_e atlas_err = wayc_atlas_flush(&font->atlas);
return atlas_err == ATLAS_ERROR_NONE ? FONT_ERROR_NONE
: FONT_ERROR_ATLAS_FAILED;
}
void wayc_font_deinit(struct font_s* font);
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