git.sesse.net Git - ffmpeg/blob - tests/checkasm/bswapdsp.c

   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/bswapdsp.h"
  24 #include "libavutil/common.h"
  25 #include "libavutil/internal.h"
  26 #include "libavutil/intreadwrite.h"
  27
  28 #define BUF_SIZE 512
  29
  30 #define randomize_buffers()                 \
  31     do {                                    \
  32         int i;                              \
  33         for (i = 0; i < BUF_SIZE; i += 4) { \
  34             uint32_t r = rnd();             \
  35             AV_WN32A(src0 + i, r);          \
  36             AV_WN32A(src1 + i, r);          \
  37             r = rnd();                      \
  38             AV_WN32A(dst0 + i, r);          \
  39             AV_WN32A(dst1 + i, r);          \
  40         }                                   \
  41     } while (0)
  42
  43 #define check_bswap(type)                                                                  \
  44     do {                                                                                   \
  45         int w;                                                                             \
  46         declare_func(void, type *dst, const type *src, int w);                             \
  47                                                                                            \
  48         for (w = 0; w < BUF_SIZE / sizeof(type); w++) {                                    \
  49             int offset = (BUF_SIZE / sizeof(type) - w) & 15; /* Test various alignments */ \
  50             randomize_buffers();                                                           \
  51             call_ref((type *)dst0 + offset, (type *)src0 + offset, w);                     \
  52             call_new((type *)dst1 + offset, (type *)src1 + offset, w);                     \
  53             if (memcmp(src0, src1, BUF_SIZE) || memcmp(dst0, dst1, BUF_SIZE))              \
  54                 fail();                                                                    \
  55             bench_new((type *)dst1 + offset, (type *)src1 + offset, w);                    \
  56         }                                                                                  \
  57     } while (0)
  58
  59 void checkasm_check_bswapdsp(void)
  60 {
  61     LOCAL_ALIGNED_16(uint8_t, src0, [BUF_SIZE]);
  62     LOCAL_ALIGNED_16(uint8_t, src1, [BUF_SIZE]);
  63     LOCAL_ALIGNED_16(uint8_t, dst0, [BUF_SIZE]);
  64     LOCAL_ALIGNED_16(uint8_t, dst1, [BUF_SIZE]);
  65     BswapDSPContext h;
  66
  67     ff_bswapdsp_init(&h);
  68
  69     if (check_func(h.bswap_buf, "bswap_buf"))
  70         check_bswap(uint32_t);
  71
  72     if (check_func(h.bswap16_buf, "bswap16_buf"))
  73         check_bswap(uint16_t);
  74
  75     report("bswap");
  76 }