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FFmpeg/libavcodec/pngdsp.h
Reimar Döffinger 394d41ee30 Partially revert "Fix png decoding on x86."
This partially reverts commit 58dabf7bf2.
It is no longer necessary to use unaligned mov.
The swapped mov argument fix remains though.
2012-02-10 23:18:52 +01:00

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1.4 KiB
C

/*
* PNG image format
* Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu>
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_PNGDSP_H
#define AVCODEC_PNGDSP_H
#include <stdint.h>
typedef struct PNGDSPContext {
void (*add_bytes_l2)(uint8_t *dst /* align 16 */,
uint8_t *src1 /* align 16 */,
uint8_t *src2 /* align 16 */, int w);
/* this might write to dst[w] */
void (*add_paeth_prediction)(uint8_t *dst, uint8_t *src,
uint8_t *top, int w, int bpp);
} PNGDSPContext;
void ff_pngdsp_init(PNGDSPContext *dsp);
void ff_pngdsp_init_x86(PNGDSPContext *dsp);
#endif /* AVCDODEC_PNGDSP_H */