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53 lines
1.8 KiB
53 lines
1.8 KiB
/* |
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* S3 Texture Compression (S3TC) decoding functions |
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* Copyright (c) 2007 by Ivo van Poorten |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef FFMPEG_S3TC_H |
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#define FFMPEG_S3TC_H |
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#include <stdint.h> |
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#define FF_S3TC_DXT1 0x31545844 |
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#define FF_S3TC_DXT3 0x33545844 |
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/** |
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* Decode DXT1 encoded data to RGB32 |
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* @param *src source buffer, has to be aligned on a 4-byte boundary |
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* @param *dst destination buffer |
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* @param w width of output image |
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* @param h height of output image |
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* @param stride line size of output image |
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*/ |
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void ff_decode_dxt1(const uint8_t *src, uint8_t *dst, |
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const unsigned int w, const unsigned int h, |
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const unsigned int stride); |
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/** |
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* Decode DXT3 encoded data to RGB32 |
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* @param *src source buffer, has to be aligned on a 4-byte boundary |
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* @param *dst destination buffer |
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* @param w width of output image |
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* @param h height of output image |
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* @param stride line size of output image |
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*/ |
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void ff_decode_dxt3(const uint8_t *src, uint8_t *dst, |
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const unsigned int w, const unsigned int h, |
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const unsigned int stride); |
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#endif /* FFMPEG_S3TC_H */
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