56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/*
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* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
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*
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* This file is part of libass.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef LIBASS_BITMAP_H
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#define LIBASS_BITMAP_H
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#include <ft2build.h>
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#include FT_GLYPH_H
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#include "ass.h"
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typedef struct ass_synth_priv ASS_SynthPriv;
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ASS_SynthPriv *ass_synth_init(double);
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void ass_synth_done(ASS_SynthPriv *priv);
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typedef struct {
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int left, top;
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int w, h; // width, height
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unsigned char *buffer; // w x h buffer
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} Bitmap;
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/**
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* \brief perform glyph rendering
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* \param glyph original glyph
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* \param outline_glyph "border" glyph, produced from original by FreeType's glyph stroker
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* \param bm_g out: pointer to the bitmap of original glyph is returned here
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* \param bm_o out: pointer to the bitmap of outline (border) glyph is returned here
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* \param bm_g out: pointer to the bitmap of glyph shadow is returned here
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* \param be 1 = produces blurred bitmaps, 0 = normal bitmaps
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*/
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int glyph_to_bitmap(ASS_Library *library, ASS_SynthPriv *priv_blur,
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FT_Glyph glyph, FT_Glyph outline_glyph,
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Bitmap **bm_g, Bitmap **bm_o, Bitmap **bm_s,
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int be, double blur_radius, FT_Vector shadow_offset,
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int border_style);
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void ass_free_bitmap(Bitmap *bm);
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int check_glyph_area(ASS_Library *library, FT_Glyph glyph);
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#endif /* LIBASS_BITMAP_H */
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