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This commit is contained in:
Alessandro Mauri 2023-02-12 09:34:44 +01:00
parent a32b211d20
commit 5018ccbbb0
13 changed files with 5549 additions and 0 deletions
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40
text_rendering/font.h Normal file
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#ifndef _FONT_H
#define _FONT_H
#define CACHE_SIZE 512
/* width and height of a glyph contain the kering advance
* (u,v)
* +----------*---+ -
* | .ii. | | ^
* | @@@@@@. |<->| |
* | V@Mio@@o |adv| |
* | :i. V@V | | |
* | :oM@@M | | |
* | :@@@MM@M | | |
* | @@o o@M | | |
* |:@@. M@M | | |
* | @@@o@@@@ | | |
* | :M@@V:@@.| | v
* +----------*---+ -
* |<------------->|
* w
*/
struct font_glyph {
unsigned int codepoint;
unsigned int u, v, w, h;
};
struct font_atlas;
int load_font(struct font_atlas *atlas, const char *path, int height);
int free_font(struct font_atlas *atlas);
void cache_init(void);
void cache_destroy(void);
struct font_glyph * cache_get(unsigned int code);
int cache_insert(struct font_glyph *g);
#endif