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/*
* PNG image format
* Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu>
*
* 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_PNGDSP_H
#define AVCODEC_PNGDSP_H
#include <stdint.h>
#include "libavutil/attributes_internal.h"
typedef struct PNGDSPContext {
void (*add_bytes_l2)(uint8_t *dst,
const uint8_t *src1 /* align 16 */,
const uint8_t *src2, int w);
/* this might write to dst[w] */
void (*add_paeth_prediction)(uint8_t *dst, const uint8_t *src,
const uint8_t *top, int w, int bpp);
} PNGDSPContext;
FF_VISIBILITY_PUSH_HIDDEN
void ff_png_add_paeth_prediction(uint8_t *dst, const uint8_t *src,
const uint8_t *top, int w, int bpp);
void ff_pngdsp_init(PNGDSPContext *dsp);
void ff_pngdsp_init_aarch64(PNGDSPContext *dsp);
void ff_pngdsp_init_x86(PNGDSPContext *dsp);
FF_VISIBILITY_POP_HIDDEN
#endif /* AVCODEC_PNGDSP_H */
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