libass/ass_font.h

   1 // -*- c-basic-offset: 8; indent-tabs-mode: t -*-
   2 // vim:ts=8:sw=8:noet:ai:
   3 /*
   4  * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
   5  *
   6  * This file is part of libass.
   7  *
   8  * libass is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * libass is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with libass; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #ifndef LIBASS_FONT_H
  24 #define LIBASS_FONT_H
  25
  26 #include <stdint.h>
  27 #include <ft2build.h>
  28 #include FT_GLYPH_H
  29 #include "ass.h"
  30 #include "ass_types.h"
  31
  32 typedef struct ass_font_desc_s {
  33         char* family;
  34         unsigned bold;
  35         unsigned italic;
  36         int treat_family_as_pattern;
  37 } ass_font_desc_t;
  38
  39 #define ASS_FONT_MAX_FACES 10
  40
  41 typedef struct ass_font_s {
  42         ass_font_desc_t desc;
  43         ass_library_t* library;
  44         FT_Library ftlibrary;
  45         FT_Face faces[ASS_FONT_MAX_FACES];
  46         int n_faces;
  47         double scale_x, scale_y; // current transform
  48         FT_Vector v; // current shift
  49         double size;
  50 } ass_font_t;
  51
  52 ass_font_t* ass_font_new(ass_library_t* library, FT_Library ftlibrary, void* fc_priv, ass_font_desc_t* desc);
  53 void ass_font_set_transform(ass_font_t* font, double scale_x, double scale_y, FT_Vector* v);
  54 void ass_font_set_size(ass_font_t* font, double size);
  55 void ass_font_get_asc_desc(ass_font_t* font, uint32_t ch, int* asc, int* desc);
  56 FT_Glyph ass_font_get_glyph(void* fontconfig_priv, ass_font_t* font, uint32_t ch, ass_hinting_t hinting);
  57 FT_Vector ass_font_get_kerning(ass_font_t* font, uint32_t c1, uint32_t c2);
  58 void ass_font_free(ass_font_t* font);
  59
  60 #endif /* LIBASS_FONT_H */