ffmpeg/libavcodec/blockdsp.h

   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 #if FF_API_XVMC
  47 void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth,
  48                           AVCodecContext *avctx);
  49 #else
  50 void ff_blockdsp_init_x86(BlockDSPContext *c, unsigned high_bit_depth);
  51 #endif /* FF_API_XVMC */
  52
  53 #endif /* AVCODEC_BLOCKDSP_H */