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/*
* S3 Texture Compression (S3TC) decoding functions
* Copyright (c) 2007 by Ivo van Poorten
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_S3TC_H
#define AVCODEC_S3TC_H
#include <stdint.h>
#include "bytestream.h"
#define FF_S3TC_DXT1 0x31545844
#define FF_S3TC_DXT3 0x33545844
/**
* Decode DXT1 encoded data to RGB32
* @param gb GetByteContext
* @param dst destination buffer
* @param w width of output image
* @param h height of output image
* @param stride line size of output image
*/
void ff_decode_dxt1(GetByteContext *gb, uint8_t *dst,
const unsigned int w, const unsigned int h,
const unsigned int stride);
/**
* Decode DXT3 encoded data to RGB32
* @param gb GetByteContext
* @param dst destination buffer
* @param w width of output image
* @param h height of output image
* @param stride line size of output image
*/
void ff_decode_dxt3(GetByteContext *gb, uint8_t *dst,
const unsigned int w, const unsigned int h,
const unsigned int stride);
#endif /* AVCODEC_S3TC_H */
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