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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 size;
vec2 bearing;
f32 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 {
struct font_context_s* context;
FT_Face face;
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_raster(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 (enum font_error_e)wayc_max(atlas_err, FONT_ERROR_NONE);
}
enum font_error_e wayc_font_raster_text(struct font_s* font, const char* text,
usize text_len, struct glyph_s* glyphs,
usize max_glyphs);
void wayc_font_deinit(struct font_s* font);
struct text_mesh_s {
struct text_vertex_s* vertices;
usize vertex_count;
u16* indices;
usize index_count;
};
bool wayc_text_mesh_init(struct text_mesh_s* mesh, const char* text,
usize text_len, struct font_s* font);
void wayc_text_mesh_deinit(struct text_mesh_s* mesh);
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