Aegisub/aegisub/libass/ass_bitmap.h

55 lines
2 KiB
C
Raw Normal View History

/*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
*
* This file is part of libass.
*
* libass 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.
*
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef LIBASS_BITMAP_H
#define LIBASS_BITMAP_H
#include <ft2build.h>
#include FT_GLYPH_H
typedef struct ass_synth_priv_s ass_synth_priv_t;
ass_synth_priv_t *ass_synth_init(double);
void ass_synth_done(ass_synth_priv_t *priv);
typedef struct bitmap_s {
int left, top;
int w, h; // width, height
unsigned char *buffer; // w x h buffer
} bitmap_t;
/**
* \brief perform glyph rendering
* \param glyph original glyph
* \param outline_glyph "border" glyph, produced from original by FreeType's glyph stroker
* \param bm_g out: pointer to the bitmap of original glyph is returned here
* \param bm_o out: pointer to the bitmap of outline (border) glyph is returned here
* \param bm_g out: pointer to the bitmap of glyph shadow is returned here
* \param be 1 = produces blurred bitmaps, 0 = normal bitmaps
*/
int glyph_to_bitmap(ass_synth_priv_t *priv_blur, FT_Glyph glyph,
FT_Glyph outline_glyph, bitmap_t **bm_g,
bitmap_t **bm_o, bitmap_t **bm_s, int be,
double blur_radius, FT_Vector shadow_offset);
void ass_free_bitmap(bitmap_t *bm);
#endif /* LIBASS_BITMAP_H */