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  1. /*
  2.  * Copyright (c) 2015 Henrik Gramner
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or modify
  7.  * it under the terms of the GNU General Public License as published by
  8.  * the Free Software Foundation; either version 2 of the License, or
  9.  * (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14.  * GNU General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU General Public License along
  17.  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
  18.  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19.  */
  20.  
  21. #include <string.h>
  22. #include "checkasm.h"
  23. #include "libavcodec/h264qpel.h"
  24. #include "libavutil/common.h"
  25. #include "libavutil/internal.h"
  26. #include "libavutil/intreadwrite.h"
  27.  
  28. static const uint32_t pixel_mask[3] = { 0xffffffff, 0x01ff01ff, 0x03ff03ff };
  29.  
  30. #define SIZEOF_PIXEL ((bit_depth + 7) / 8)
  31. #define BUF_SIZE (2 * 16 * (16 + 3 + 4))
  32.  
  33. #define randomize_buffers()                        \
  34.     do {                                           \
  35.         uint32_t mask = pixel_mask[bit_depth - 8]; \
  36.         int k;                                     \
  37.         for (k = 0; k < BUF_SIZE; k += 4) {        \
  38.             uint32_t r = rnd() & mask;             \
  39.             AV_WN32A(buf0 + k, r);                 \
  40.             AV_WN32A(buf1 + k, r);                 \
  41.             r = rnd();                             \
  42.             AV_WN32A(dst0 + k, r);                 \
  43.             AV_WN32A(dst1 + k, r);                 \
  44.         }                                          \
  45.     } while (0)
  46.  
  47. #define src0 (buf0 + 3 * 2 * 16) /* h264qpel functions read data from negative src pointer offsets */
  48. #define src1 (buf1 + 3 * 2 * 16)
  49.  
  50. void checkasm_check_h264qpel(void)
  51. {
  52.     LOCAL_ALIGNED_16(uint8_t, buf0, [BUF_SIZE]);
  53.     LOCAL_ALIGNED_16(uint8_t, buf1, [BUF_SIZE]);
  54.     LOCAL_ALIGNED_16(uint8_t, dst0, [BUF_SIZE]);
  55.     LOCAL_ALIGNED_16(uint8_t, dst1, [BUF_SIZE]);
  56.     H264QpelContext h;
  57.     int op, bit_depth, i, j;
  58.     declare_func(void, uint8_t *dst, const uint8_t *src, ptrdiff_t stride);
  59.  
  60.     for (op = 0; op < 2; op++) {
  61.         qpel_mc_func (*tab)[16] = op ? h.avg_h264_qpel_pixels_tab : h.put_h264_qpel_pixels_tab;
  62.         const char *op_name = op ? "avg" : "put";
  63.  
  64.         for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
  65.             ff_h264qpel_init(&h, bit_depth);
  66.             for (i = 0; i < (op ? 3 : 4); i++) {
  67.                 int size = 16 >> i;
  68.                 for (j = 0; j < 16; j++)
  69.                     if (check_func(tab[i][j], "%s_h264_qpel_%d_mc%d%d_%d", op_name, size, j & 3, j >> 2, bit_depth)) {
  70.                         randomize_buffers();
  71.                         call_ref(dst0, src0, size * SIZEOF_PIXEL);
  72.                         call_new(dst1, src1, size * SIZEOF_PIXEL);
  73.                         if (memcmp(buf0, buf1, BUF_SIZE) || memcmp(dst0, dst1, BUF_SIZE))
  74.                             fail();
  75.                         bench_new(dst1, src1, size * SIZEOF_PIXEL);
  76.                     }
  77.             }
  78.         }
  79.         report("%s", op_name);
  80.     }
  81. }
  82.