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  1. /*
  2.  * This file is part of FFmpeg.
  3.  *
  4.  * FFmpeg is free software; you can redistribute it and/or
  5.  * modify it under the terms of the GNU Lesser General Public
  6.  * License as published by the Free Software Foundation; either
  7.  * version 2.1 of the License, or (at your option) any later version.
  8.  *
  9.  * FFmpeg is distributed in the hope that it will be useful,
  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12.  * Lesser General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU Lesser General Public
  15.  * License along with FFmpeg; if not, write to the Free Software
  16.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17.  */
  18.  
  19. #ifndef AVCODEC_BLOCKDSP_H
  20. #define AVCODEC_BLOCKDSP_H
  21.  
  22. #include <stdint.h>
  23.  
  24. #include "avcodec.h"
  25. #include "version.h"
  26.  
  27. /* add and put pixel (decoding)
  28.  * Block sizes for op_pixels_func are 8x4,8x8 16x8 16x16.
  29.  * h for op_pixels_func is limited to { width / 2, width },
  30.  * but never larger than 16 and never smaller than 4. */
  31. typedef void (*op_fill_func)(uint8_t *block /* align width (8 or 16) */,
  32.                              uint8_t value, int line_size, int h);
  33.  
  34. typedef struct BlockDSPContext {
  35.     void (*clear_block)(int16_t *block /* align 16 */);
  36.     void (*clear_blocks)(int16_t *blocks /* align 16 */);
  37.  
  38.     op_fill_func fill_block_tab[2];
  39. } BlockDSPContext;
  40.  
  41. void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx);
  42.  
  43. void ff_blockdsp_init_alpha(BlockDSPContext *c, unsigned high_bit_depth);
  44. void ff_blockdsp_init_arm(BlockDSPContext *c, unsigned high_bit_depth);
  45. void ff_blockdsp_init_ppc(BlockDSPContext *c, unsigned high_bit_depth);
  46. void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth,
  47.                           AVCodecContext *avctx);
  48. void ff_blockdsp_init_mips(BlockDSPContext *c, unsigned high_bit_depth);
  49.  
  50. #endif /* AVCODEC_BLOCKDSP_H */
  51.