// -*- c-basic-offset: 8; indent-tabs-mode: t -*- // vim:ts=8:sw=8:noet:ai: /* Copyright (C) 2006 Evgeniy Stepanov This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef __ASS_CACHE_H__ #define __ASS_CACHE_H__ void ass_font_cache_init(void); ass_font_t* ass_font_cache_find(ass_font_desc_t* desc); void ass_font_cache_add(ass_font_t* font); void ass_font_cache_done(void); // describes a glyph; glyphs with equivalents structs are considered identical typedef struct glyph_hash_key_s { char bitmap; // bool : true = bitmap, false = outline FT_Face face; int size; // font size int index; // glyph index in the face unsigned outline; // border width, 16.16 fixed point value int bold, italic; char be; // blur edges // the following affects bitmap glyphs only unsigned scale_x, scale_y; // 16.16 int angle; // signed 16.16 FT_Vector advance; // subpixel shift vector } glyph_hash_key_t; typedef struct glyph_hash_val_s { bitmap_t* bm; // the actual glyph bitmaps bitmap_t* bm_o; bitmap_t* bm_s; FT_BBox bbox_scaled; // bbox after scaling, but before rotation FT_Vector advance; // 26.6, advance distance to the next glyph in line } glyph_hash_val_t; void ass_glyph_cache_init(void); void cache_add_glyph(glyph_hash_key_t* key, glyph_hash_val_t* val); glyph_hash_val_t* cache_find_glyph(glyph_hash_key_t* key); void ass_glyph_cache_reset(void); void ass_glyph_cache_done(void); #endif