FFmpeg
bswapdsp.c
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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/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 
60 {
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 }
void(* bswap16_buf)(uint16_t *dst, const uint16_t *src, int len)
Definition: bswapdsp.h:26
#define BUF_SIZE
Definition: bswapdsp.c:28
#define report
Definition: checkasm.h:125
uint8_t
void(* bswap_buf)(uint32_t *dst, const uint32_t *src, int w)
Definition: bswapdsp.h:25
common internal API header
#define src1
Definition: h264pred.c:139
#define check_func(func,...)
Definition: checkasm.h:113
#define src0
Definition: h264pred.c:138
common internal and external API header
#define check_bswap(type)
Definition: bswapdsp.c:43
av_cold void ff_bswapdsp_init(BswapDSPContext *c)
Definition: bswapdsp.c:49
#define LOCAL_ALIGNED_16(t, v,...)
Definition: internal.h:131
void checkasm_check_bswapdsp(void)
Definition: bswapdsp.c:59