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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. #include <stdint.h>
  20. #include <string.h>
  21.  
  22. #include "config.h"
  23. #include "libavutil/attributes.h"
  24. #include "avcodec.h"
  25. #include "blockdsp.h"
  26. #include "version.h"
  27.  
  28. static void clear_block_8_c(int16_t *block)
  29. {
  30.     memset(block, 0, sizeof(int16_t) * 64);
  31. }
  32.  
  33. static void clear_blocks_8_c(int16_t *blocks)
  34. {
  35.     memset(blocks, 0, sizeof(int16_t) * 6 * 64);
  36. }
  37.  
  38. static void fill_block16_c(uint8_t *block, uint8_t value, int line_size, int h)
  39. {
  40.     int i;
  41.  
  42.     for (i = 0; i < h; i++) {
  43.         memset(block, value, 16);
  44.         block += line_size;
  45.     }
  46. }
  47.  
  48. static void fill_block8_c(uint8_t *block, uint8_t value, int line_size, int h)
  49. {
  50.     int i;
  51.  
  52.     for (i = 0; i < h; i++) {
  53.         memset(block, value, 8);
  54.         block += line_size;
  55.     }
  56. }
  57.  
  58. av_cold void ff_blockdsp_init(BlockDSPContext *c, AVCodecContext *avctx)
  59. {
  60.     const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
  61.  
  62.     c->clear_block  = clear_block_8_c;
  63.     c->clear_blocks = clear_blocks_8_c;
  64.  
  65.     c->fill_block_tab[0] = fill_block16_c;
  66.     c->fill_block_tab[1] = fill_block8_c;
  67.  
  68.     if (ARCH_ALPHA)
  69.         ff_blockdsp_init_alpha(c, high_bit_depth);
  70.     if (ARCH_ARM)
  71.         ff_blockdsp_init_arm(c, high_bit_depth);
  72.     if (ARCH_PPC)
  73.         ff_blockdsp_init_ppc(c, high_bit_depth);
  74.     if (ARCH_X86)
  75.         ff_blockdsp_init_x86(c, high_bit_depth, avctx);
  76.     if (ARCH_MIPS)
  77.         ff_blockdsp_init_mips(c, high_bit_depth);
  78. }
  79.