libass/ass_bitmap.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 program is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation; either version 2 of the License, or
   9   (at your option) any later version.
  10
  11   This program is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with this program; if not, write to the Free Software
  18   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19 */
  20
  21 #ifndef LIBASS_BITMAP_H
  22 #define LIBASS_BITMAP_H
  23
  24 #include <ft2build.h>
  25 #include FT_GLYPH_H
  26
  27 typedef struct ass_synth_priv_s ass_synth_priv_t;
  28
  29 ass_synth_priv_t* ass_synth_init(void);
  30 void ass_synth_done(ass_synth_priv_t* priv);
  31
  32 typedef struct bitmap_s {
  33         int left, top;
  34         int w, h; // width, height
  35         unsigned char* buffer; // w x h buffer
  36 } bitmap_t;
  37
  38 /**
  39  * \brief perform glyph rendering
  40  * \param glyph original glyph
  41  * \param outline_glyph "border" glyph, produced from original by FreeType's glyph stroker
  42  * \param bm_g out: pointer to the bitmap of original glyph is returned here
  43  * \param bm_o out: pointer to the bitmap of outline (border) glyph is returned here
  44  * \param bm_g out: pointer to the bitmap of glyph shadow is returned here
  45  * \param be 1 = produces blurred bitmaps, 0 = normal bitmaps
  46  */
  47 int glyph_to_bitmap(ass_synth_priv_t* priv, FT_Glyph glyph, FT_Glyph outline_glyph, bitmap_t** bm_g, bitmap_t** bm_o, bitmap_t** bm_s, int be);
  48
  49 void ass_free_bitmap(bitmap_t* bm);
  50
  51 #endif /* LIBASS_BITMAP_H */