yading@10: /*
yading@10:  * S3 Texture Compression (S3TC) decoding functions
yading@10:  * Copyright (c) 2007 by Ivo van Poorten
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_S3TC_H
yading@10: #define AVCODEC_S3TC_H
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: #include "bytestream.h"
yading@10: 
yading@10: #define FF_S3TC_DXT1    0x31545844
yading@10: #define FF_S3TC_DXT3    0x33545844
yading@10: 
yading@10: /**
yading@10:  * Decode DXT1 encoded data to RGB32
yading@10:  * @param gb GetByteContext
yading@10:  * @param dst destination buffer
yading@10:  * @param w width of output image
yading@10:  * @param h height of output image
yading@10:  * @param stride line size of output image
yading@10:  */
yading@10: void ff_decode_dxt1(GetByteContext *gb, uint8_t *dst,
yading@10:                     const unsigned int w, const unsigned int h,
yading@10:                     const unsigned int stride);
yading@10: /**
yading@10:  * Decode DXT3 encoded data to RGB32
yading@10:  * @param gb GetByteContext
yading@10:  * @param dst destination buffer
yading@10:  * @param w width of output image
yading@10:  * @param h height of output image
yading@10:  * @param stride line size of output image
yading@10:  */
yading@10: void ff_decode_dxt3(GetByteContext *gb, uint8_t *dst,
yading@10:                     const unsigned int w, const unsigned int h,
yading@10:                     const unsigned int stride);
yading@10: 
yading@10: #endif /* AVCODEC_S3TC_H */