pngdsp.h 1.4 KB

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  1. /*
  2. * PNG image format
  3. * Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu>
  4. *
  5. * This file is part of FFmpeg.
  6. *
  7. * FFmpeg is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU Lesser General Public
  9. * License as published by the Free Software Foundation; either
  10. * version 2.1 of the License, or (at your option) any later version.
  11. *
  12. * FFmpeg is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15. * Lesser General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Lesser General Public
  18. * License along with FFmpeg; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20. */
  21. #ifndef AVCODEC_PNGDSP_H
  22. #define AVCODEC_PNGDSP_H
  23. #include <stdint.h>
  24. typedef struct PNGDSPContext {
  25. void (*add_bytes_l2)(uint8_t *dst,
  26. uint8_t *src1 /* align 16 */,
  27. uint8_t *src2, int w);
  28. /* this might write to dst[w] */
  29. void (*add_paeth_prediction)(uint8_t *dst, uint8_t *src,
  30. uint8_t *top, int w, int bpp);
  31. } PNGDSPContext;
  32. void ff_pngdsp_init(PNGDSPContext *dsp);
  33. void ff_pngdsp_init_x86(PNGDSPContext *dsp);
  34. #endif /* AVCODEC_PNGDSP_H */