1 /* 2 * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> 3 * 4 * This file is part of libass. 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef LIBASS_FONT_H 20 #define LIBASS_FONT_H 21 22 #include <stdint.h> 23 #include <ft2build.h> 24 #include FT_GLYPH_H 25 #include FT_OUTLINE_H 26 27 #include "ass.h" 28 #include "ass_types.h" 29 30 #define VERTICAL_LOWER_BOUND 0x02f1 31 32 #define ASS_FONT_MAX_FACES 10 33 #define DECO_UNDERLINE 1 34 #define DECO_STRIKETHROUGH 2 35 36 typedef struct ass_shaper_font_data ASS_ShaperFontData; 37 38 typedef struct { 39 char *family; 40 unsigned bold; 41 unsigned italic; 42 int treat_family_as_pattern; 43 int vertical; // @font vertical layout 44 } ASS_FontDesc; 45 46 typedef struct { 47 ASS_FontDesc desc; 48 ASS_Library *library; 49 FT_Library ftlibrary; 50 FT_Face faces[ASS_FONT_MAX_FACES]; 51 ASS_ShaperFontData *shaper_priv; 52 int n_faces; 53 double scale_x, scale_y; // current transform 54 FT_Vector v; // current shift 55 double size; 56 } ASS_Font; 57 58 #include "ass_cache.h" 59 60 ASS_Font *ass_font_new(Cache *font_cache, ASS_Library *library, 61 FT_Library ftlibrary, void *fc_priv, 62 ASS_FontDesc *desc); 63 void ass_font_set_transform(ASS_Font *font, double scale_x, 64 double scale_y, FT_Vector *v); 65 void ass_face_set_size(FT_Face face, double size); 66 void ass_font_set_size(ASS_Font *font, double size); 67 void ass_font_get_asc_desc(ASS_Font *font, uint32_t ch, int *asc, 68 int *desc); 69 int ass_font_get_index(void *fcpriv, ASS_Font *font, uint32_t symbol, 70 int *face_index, int *glyph_index); 71 FT_Glyph ass_font_get_glyph(void *fontconfig_priv, ASS_Font *font, 72 uint32_t ch, int face_index, int index, 73 ASS_Hinting hinting, int deco); 74 FT_Vector ass_font_get_kerning(ASS_Font *font, uint32_t c1, uint32_t c2); 75 void ass_font_free(ASS_Font *font); 76 void fix_freetype_stroker(FT_Outline *outline, int border_x, int border_y); 77 void outline_copy(FT_Library lib, FT_Outline *source, FT_Outline **dest); 78 void outline_free(FT_Library lib, FT_Outline *outline); 79 80 #endif /* LIBASS_FONT_H */ 81