mirror of https://github.com/mpv-player/mpv
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
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#ifndef __ASS_CACHE_H__
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#define __ASS_CACHE_H__
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_STROKER_H
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#include FT_GLYPH_H
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// font cache
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typedef struct face_desc_s {
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char* family;
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unsigned bold;
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unsigned italic;
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} face_desc_t;
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void ass_face_cache_init(void);
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int ass_new_face(FT_Library library, void* fontconfig_priv, face_desc_t* desc, /*out*/ FT_Face* face);
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void ass_face_cache_done(void);
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// describes a glyph; glyphs with equivalents structs are considered identical
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typedef struct glyph_hash_key_s {
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char bitmap; // bool : true = bitmap, false = outline
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FT_Face face;
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int size; // font size
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int index; // glyph index in the face
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unsigned outline; // border width, 16.16 fixed point value
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int bold, italic;
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// the following affects bitmap glyphs only
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unsigned scale_x, scale_y; // 16.16
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int angle; // signed 16.16
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FT_Vector advance; // subpixel shift vector
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} glyph_hash_key_t;
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typedef struct glyph_hash_val_s {
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FT_Glyph glyph; // the actual glyphs
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FT_Glyph outline_glyph;
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FT_BBox bbox_scaled; // bbox after scaling, but before rotation
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FT_Vector advance; // 26.6, advance distance to the next glyph in line
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} glyph_hash_val_t;
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void ass_glyph_cache_init(void);
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void cache_add_glyph(glyph_hash_key_t* key, glyph_hash_val_t* val);
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glyph_hash_val_t* cache_find_glyph(glyph_hash_key_t* key);
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void ass_glyph_cache_done(void);
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#endif
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