mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 09:52:17 +00:00
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
|
|
* 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 */
|