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#pragma once
#include "cglm/types.h"
#include "freetype/freetype.h"
#include "hash.h"
#include "utils.h"
typedef u32 codepoint_t;
#define WAYC_LETTER_NTRIANGLES 2
#define WAYC_LETTER_NVERTICES (WAYC_LETTER_NTRIANGLES * WAYC_TRIANGLE_NVERTS)
struct text_vertex_s {
vec2 pos;
vec2 uv;
};
typedef u32 text_index_t;
enum font_context_error_e {
FONT_CONTEXT_ERROR_NONE,
FONT_CONTEXT_ERROR_LIBRARY_LOADING,
FONT_CONTEXT_ERROR_VAO_CREATION,
};
struct font_context_s {
FT_Library library;
};
enum font_context_error_e wayc_font_context_init(struct font_context_s* ctx);
void wayc_font_context_deinit(struct font_context_s* ctx);
struct glyph_s {
ivec2 uv0, uv1;
i32 bearing_x, bearing_y;
f32 advance;
};
enum font_error_e {
FONT_ERROR_NONE,
FONT_ERROR_FILE_LOAD,
FONT_ERROR_FONT_LOAD,
FONT_ERROR_NOT_MATCH,
FONT_ERROR_ATLAS_FULL,
};
struct font_s {
u8* data;
FT_Face face;
struct hashmap_s<codepoint_t, struct glyph_s> cache;
};
enum font_error_e wayc_font_init(struct font_s* font,
struct font_context_s* ctx, u32 fsize,
const char* path);
enum font_error_e wayc_font_lookup(struct font_s* font, codepoint_t codepoint,
struct glyph_s* out);
void wayc_font_deinit(struct font_s* font);
enum text_error_e {
TEXT_ERROR_NONE,
TEXT_ERROR_ATLAS,
};
struct text_s {
struct font_s* font;
struct atlas_s* atlas;
struct atlas_packer_s* packer;
struct string_s string;
};
#define WAYC_TEXT_INIT(font, atlas, packer, string) \
text_s { font, atlas, packer, string }
enum text_error_e wayc_text_assemble(struct text_s* text, usize* out_size,
text_index_t** out_indices,
struct text_vertex_s** out_verts);
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