FFmpeg
pixblockdsp.c
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1 /*
2  * Copyright (c) 2015 Tiancheng "Timothy" Gu
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/pixblockdsp.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_UNITS 8
30 #define BUF_SIZE (BUF_UNITS * 128 + 8 * BUF_UNITS)
31 
32 #define randomize_buffers() \
33  do { \
34  int i; \
35  for (i = 0; i < BUF_SIZE; i += 4) { \
36  uint32_t r = rnd(); \
37  AV_WN32A(src10 + i, r); \
38  AV_WN32A(src11 + i, r); \
39  r = rnd(); \
40  AV_WN32A(src20 + i, r); \
41  AV_WN32A(src21 + i, r); \
42  r = rnd(); \
43  AV_WN32A(dst0_ + i, r); \
44  AV_WN32A(dst1_ + i, r); \
45  } \
46  } while (0)
47 
48 #define check_get_pixels(type, aligned) \
49  do { \
50  int i; \
51  declare_func_emms(AV_CPU_FLAG_MMX, void, int16_t *block, const uint8_t *pixels, ptrdiff_t line_size); \
52  \
53  for (i = 0; i < BUF_UNITS; i++) { \
54  int src_offset = i * 64 * sizeof(type) + (aligned ? 8 : 1) * i; \
55  int dst_offset = i * 64; /* dst must be aligned */ \
56  randomize_buffers(); \
57  call_ref(dst0 + dst_offset, src10 + src_offset, 8); \
58  call_new(dst1 + dst_offset, src11 + src_offset, 8); \
59  if (memcmp(src10, src11, BUF_SIZE)|| memcmp(dst0, dst1, BUF_SIZE)) \
60  fail(); \
61  bench_new(dst1 + dst_offset, src11 + src_offset, 8); \
62  } \
63  } while (0)
64 
65 #define check_diff_pixels(type, aligned) \
66  do { \
67  int i; \
68  declare_func_emms(AV_CPU_FLAG_MMX, void, int16_t *av_restrict block, const uint8_t *s1, const uint8_t *s2, ptrdiff_t stride); \
69  \
70  for (i = 0; i < BUF_UNITS; i++) { \
71  int src_offset = i * 64 * sizeof(type) + (aligned ? 8 : 1) * i; \
72  int dst_offset = i * 64; /* dst must be aligned */ \
73  randomize_buffers(); \
74  call_ref(dst0 + dst_offset, src10 + src_offset, src20 + src_offset, 8); \
75  call_new(dst1 + dst_offset, src11 + src_offset, src21 + src_offset, 8); \
76  if (memcmp(src10, src11, BUF_SIZE) || memcmp(src20, src21, BUF_SIZE) || memcmp(dst0, dst1, BUF_SIZE)) \
77  fail(); \
78  bench_new(dst1 + dst_offset, src11 + src_offset, src21 + src_offset, 8); \
79  } \
80  } while (0)
81 
83 {
84  LOCAL_ALIGNED_16(uint8_t, src10, [BUF_SIZE]);
85  LOCAL_ALIGNED_16(uint8_t, src11, [BUF_SIZE]);
86  LOCAL_ALIGNED_16(uint8_t, src20, [BUF_SIZE]);
87  LOCAL_ALIGNED_16(uint8_t, src21, [BUF_SIZE]);
88  LOCAL_ALIGNED_16(uint8_t, dst0_, [BUF_SIZE]);
89  LOCAL_ALIGNED_16(uint8_t, dst1_, [BUF_SIZE]);
90  uint16_t *dst0 = (uint16_t *)dst0_;
91  uint16_t *dst1 = (uint16_t *)dst1_;
93  AVCodecContext avctx = {
95  };
96 
97  ff_pixblockdsp_init(&h, &avctx);
98 
99  if (check_func(h.get_pixels, "get_pixels"))
100  check_get_pixels(uint8_t, 1);
101  if (check_func(h.get_pixels_unaligned, "get_pixels_unaligned"))
102  check_get_pixels(uint8_t, 0);
103 
104  report("get_pixels");
105 
106  if (check_func(h.diff_pixels, "diff_pixels"))
107  check_diff_pixels(uint8_t, 1);
108  if (check_func(h.diff_pixels_unaligned, "diff_pixels_unaligned"))
109  check_diff_pixels(uint8_t, 0);
110 
111  report("diff_pixels");
112 }
mem_internal.h
check_func
#define check_func(func,...)
Definition: checkasm.h:125
ff_pixblockdsp_init
av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx)
Definition: pixblockdsp.c:81
check_get_pixels
#define check_get_pixels(type, aligned)
Definition: pixblockdsp.c:48
checkasm.h
checkasm_check_pixblockdsp
void checkasm_check_pixblockdsp(void)
Definition: pixblockdsp.c:82
intreadwrite.h
LOCAL_ALIGNED_16
#define LOCAL_ALIGNED_16(t, v,...)
Definition: mem_internal.h:130
AVCodecContext::bits_per_raw_sample
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:1531
PixblockDSPContext
Definition: pixblockdsp.h:28
report
#define report
Definition: checkasm.h:137
internal.h
common.h
AVCodecContext
main external API structure.
Definition: avcodec.h:501
BUF_SIZE
#define BUF_SIZE
Definition: pixblockdsp.c:30
check_diff_pixels
#define check_diff_pixels(type, aligned)
Definition: pixblockdsp.c:65
h
h
Definition: vp9dsp_template.c:2038
pixblockdsp.h