/*
  * 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>
 
 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 */