/* * 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 FFMPEG_S3TC_H #define FFMPEG_S3TC_H #include <stdint.h> #define FF_S3TC_DXT1 0x31545844 #define FF_S3TC_DXT3 0x33545844 /** * Decode DXT1 encoded data to RGB32 * @param *src source buffer, has to be aligned on a 4-byte boundary * @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(const uint8_t *src, uint8_t *dst, const unsigned int w, const unsigned int h, const unsigned int stride); /** * Decode DXT3 encoded data to RGB32 * @param *src source buffer, has to be aligned on a 4-byte boundary * @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(const uint8_t *src, uint8_t *dst, const unsigned int w, const unsigned int h, const unsigned int stride); #endif /* FFMPEG_S3TC_H */