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 #include "libavutil/mem_internal.h"
28 
29 #define BUF_SIZE 512
30 
31 #define randomize_buffers() \
32  do { \
33  int i; \
34  for (i = 0; i < BUF_SIZE; i += 4) { \
35  uint32_t r = rnd(); \
36  AV_WN32A(src0 + i, r); \
37  AV_WN32A(src1 + i, r); \
38  r = rnd(); \
39  AV_WN32A(dst0 + i, r); \
40  AV_WN32A(dst1 + i, r); \
41  } \
42  } while (0)
43 
44 #define check_bswap(type) \
45  do { \
46  int w; \
47  declare_func(void, type *dst, const type *src, int w); \
48  \
49  for (w = 0; w < BUF_SIZE / sizeof(type); w++) { \
50  int offset = (BUF_SIZE / sizeof(type) - w) & 15; /* Test various alignments */ \
51  randomize_buffers(); \
52  call_ref((type *)dst0 + offset, (type *)src0 + offset, w); \
53  call_new((type *)dst1 + offset, (type *)src1 + offset, w); \
54  if (memcmp(src0, src1, BUF_SIZE) || memcmp(dst0, dst1, BUF_SIZE)) \
55  fail(); \
56  bench_new((type *)dst1 + offset, (type *)src1 + offset, w); \
57  } \
58  } while (0)
59 
61 {
62  LOCAL_ALIGNED_16(uint8_t, src0, [BUF_SIZE]);
63  LOCAL_ALIGNED_16(uint8_t, src1, [BUF_SIZE]);
64  LOCAL_ALIGNED_16(uint8_t, dst0, [BUF_SIZE]);
65  LOCAL_ALIGNED_16(uint8_t, dst1, [BUF_SIZE]);
67 
69 
70  if (check_func(h.bswap_buf, "bswap_buf"))
71  check_bswap(uint32_t);
72 
73  if (check_func(h.bswap16_buf, "bswap16_buf"))
74  check_bswap(uint16_t);
75 
76  report("bswap");
77 }
bswapdsp.h
mem_internal.h
check_func
#define check_func(func,...)
Definition: checkasm.h:127
BUF_SIZE
#define BUF_SIZE
Definition: bswapdsp.c:29
checkasm.h
intreadwrite.h
LOCAL_ALIGNED_16
#define LOCAL_ALIGNED_16(t, v,...)
Definition: mem_internal.h:130
ff_bswapdsp_init
av_cold void ff_bswapdsp_init(BswapDSPContext *c)
Definition: bswapdsp.c:49
src0
#define src0
Definition: h264pred.c:139
src1
#define src1
Definition: h264pred.c:140
report
#define report
Definition: checkasm.h:139
internal.h
common.h
checkasm_check_bswapdsp
void checkasm_check_bswapdsp(void)
Definition: bswapdsp.c:60
check_bswap
#define check_bswap(type)
Definition: bswapdsp.c:44
BswapDSPContext
Definition: bswapdsp.h:24
h
h
Definition: vp9dsp_template.c:2038