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  1. /*
  2.  * BlackFin DSPUTILS
  3.  *
  4.  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
  5.  * Copyright (c) 2006 Michael Benjamin <michael.benjamin@analog.com>
  6.  *
  7.  * This file is part of FFmpeg.
  8.  *
  9.  * FFmpeg is free software; you can redistribute it and/or
  10.  * modify it under the terms of the GNU Lesser General Public
  11.  * License as published by the Free Software Foundation; either
  12.  * version 2.1 of the License, or (at your option) any later version.
  13.  *
  14.  * FFmpeg is distributed in the hope that it will be useful,
  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17.  * Lesser General Public License for more details.
  18.  *
  19.  * You should have received a copy of the GNU Lesser General Public
  20.  * License along with FFmpeg; if not, write to the Free Software
  21.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22.  */
  23.  
  24. #include "libavutil/attributes.h"
  25. #include "libavcodec/avcodec.h"
  26. #include "libavcodec/dsputil.h"
  27. #include "dsputil_bfin.h"
  28.  
  29. int off;
  30.  
  31. static void bfin_idct_add (uint8_t *dest, int line_size, int16_t *block)
  32. {
  33.     ff_bfin_idct (block);
  34.     ff_bfin_add_pixels_clamped (block, dest, line_size);
  35. }
  36.  
  37. static void bfin_idct_put (uint8_t *dest, int line_size, int16_t *block)
  38. {
  39.     ff_bfin_idct (block);
  40.     ff_bfin_put_pixels_clamped (block, dest, line_size);
  41. }
  42.  
  43.  
  44. static void bfin_clear_blocks (int16_t *blocks)
  45. {
  46.     // This is just a simple memset.
  47.     //
  48.     __asm__("P0=192; "
  49.         "I0=%0;  "
  50.         "R0=0;   "
  51.         "LSETUP(clear_blocks_blkfn_lab,clear_blocks_blkfn_lab)LC0=P0;"
  52.         "clear_blocks_blkfn_lab:"
  53.         "[I0++]=R0;"
  54.         ::"a" (blocks):"P0","I0","R0");
  55. }
  56.  
  57. static int bfin_pix_abs16 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
  58. {
  59.     return ff_bfin_z_sad16x16 (blk1,blk2,line_size,line_size,h);
  60. }
  61.  
  62. static int bfin_vsad_intra16 (void *c, uint8_t *blk1, uint8_t *dummy, int stride, int h) {
  63.     return ff_bfin_z_sad16x16 (blk1,blk1+stride,stride<<1,stride<<1,h);
  64. }
  65.  
  66. static int bfin_vsad (void *c, uint8_t *blk1, uint8_t *blk2, int stride, int h) {
  67.     return ff_bfin_z_sad16x16 (blk1,blk1+stride,stride<<1,stride<<1,h)
  68.         + ff_bfin_z_sad16x16 (blk2,blk2+stride,stride<<1,stride<<1,h);
  69. }
  70.  
  71. static uint8_t vtmp_blk[256] attribute_l1_data_b;
  72.  
  73. static int bfin_pix_abs16_x2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
  74. {
  75.     ff_bfin_put_pixels16uc (vtmp_blk, blk2, blk2+1, 16, line_size, h);
  76.     return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
  77. }
  78.  
  79. static int bfin_pix_abs16_y2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
  80. {
  81.     ff_bfin_put_pixels16uc (vtmp_blk, blk2, blk2+line_size, 16, line_size, h);
  82.     return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
  83. }
  84.  
  85. static int bfin_pix_abs16_xy2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
  86. {
  87.     ff_bfin_z_put_pixels16_xy2 (vtmp_blk, blk2, 16, line_size, h);
  88.     return ff_bfin_z_sad16x16 (blk1, vtmp_blk, line_size, 16, h);
  89. }
  90.  
  91. static int bfin_pix_abs8 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
  92. {
  93.     return ff_bfin_z_sad8x8 (blk1,blk2,line_size,line_size, h);
  94. }
  95.  
  96. static int bfin_pix_abs8_x2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
  97. {
  98.     ff_bfin_put_pixels8uc (vtmp_blk, blk2, blk2+1, 8, line_size, h);
  99.     return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
  100. }
  101.  
  102. static int bfin_pix_abs8_y2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
  103. {
  104.     ff_bfin_put_pixels8uc (vtmp_blk, blk2, blk2+line_size, 8, line_size, h);
  105.     return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
  106. }
  107.  
  108. static int bfin_pix_abs8_xy2 (void *c, uint8_t *blk1, uint8_t *blk2, int line_size, int h)
  109. {
  110.     ff_bfin_z_put_pixels8_xy2 (vtmp_blk, blk2, 8, line_size, h);
  111.     return ff_bfin_z_sad8x8 (blk1, vtmp_blk, line_size, 8, h);
  112. }
  113.  
  114.  
  115. /*
  116.   decoder optimization
  117.   start on 2/11 100 frames of 352x240@25 compiled with no optimization -g debugging
  118.   9.824s ~ 2.44x off
  119.   6.360s ~ 1.58x off with -O2
  120.   5.740s ~ 1.43x off with idcts
  121.  
  122.   2.64s    2/20 same sman.mp4 decode only
  123.  
  124. */
  125.  
  126. av_cold void ff_dsputil_init_bfin(DSPContext *c, AVCodecContext *avctx)
  127. {
  128.     const int high_bit_depth = avctx->bits_per_raw_sample > 8;
  129.  
  130.     c->diff_pixels        = ff_bfin_diff_pixels;
  131.     c->put_pixels_clamped = ff_bfin_put_pixels_clamped;
  132.     c->add_pixels_clamped = ff_bfin_add_pixels_clamped;
  133.  
  134.     if (!high_bit_depth)
  135.         c->get_pixels     = ff_bfin_get_pixels;
  136.     c->clear_blocks       = bfin_clear_blocks;
  137.     c->pix_sum            = ff_bfin_pix_sum;
  138.     c->pix_norm1          = ff_bfin_pix_norm1;
  139.  
  140.     c->sad[0]             = bfin_pix_abs16;
  141.     c->sad[1]             = bfin_pix_abs8;
  142.  
  143. /*     c->vsad[0]            = bfin_vsad; */
  144. /*     c->vsad[4]            = bfin_vsad_intra16; */
  145.  
  146.     /* TODO [0] 16  [1] 8 */
  147.     c->pix_abs[0][0] = bfin_pix_abs16;
  148.     c->pix_abs[0][1] = bfin_pix_abs16_x2;
  149.     c->pix_abs[0][2] = bfin_pix_abs16_y2;
  150.     c->pix_abs[0][3] = bfin_pix_abs16_xy2;
  151.  
  152.     c->pix_abs[1][0] = bfin_pix_abs8;
  153.     c->pix_abs[1][1] = bfin_pix_abs8_x2;
  154.     c->pix_abs[1][2] = bfin_pix_abs8_y2;
  155.     c->pix_abs[1][3] = bfin_pix_abs8_xy2;
  156.  
  157.  
  158.     c->sse[0] = ff_bfin_sse16;
  159.     c->sse[1] = ff_bfin_sse8;
  160.     c->sse[2] = ff_bfin_sse4;
  161.  
  162.     if (avctx->bits_per_raw_sample <= 8) {
  163.         if (avctx->dct_algo == FF_DCT_AUTO)
  164.             c->fdct                  = ff_bfin_fdct;
  165.  
  166.         if (avctx->idct_algo == FF_IDCT_AUTO) {
  167.             c->idct_permutation_type = FF_NO_IDCT_PERM;
  168.             c->idct                  = ff_bfin_idct;
  169.             c->idct_add              = bfin_idct_add;
  170.             c->idct_put              = bfin_idct_put;
  171.         }
  172.     }
  173. }
  174.