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llviddsp.c
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1 /*
2  * Copyright (c) 2016 Alexandra Hájková
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 
23 #include "libavutil/common.h"
24 #include "libavutil/intreadwrite.h"
25 #include "libavutil/mem.h"
26 
28 
29 #include "checkasm.h"
30 
31 #define randomize_buffers(buf, size) \
32  do { \
33  int j; \
34  for (j = 0; j < size; j++) \
35  buf[j] = rnd() & 0xFF; \
36  } while (0)
37 
39 {
40  uint8_t *src0 = av_mallocz(width);
41  uint8_t *src1 = av_mallocz(width);
42  uint8_t *dst0 = av_mallocz(width);
43  uint8_t *dst1 = av_mallocz(width);
44  declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, uint8_t *src, ptrdiff_t w);
45 
46  if (!src0 || !src1 || !dst0 || !dst1)
47  fail();
48 
49  randomize_buffers(src0, width);
50  memcpy(src1, src0, width);
51 
52  if (check_func(c.add_bytes, "add_bytes")) {
53  call_ref(dst0, src0, width);
54  call_new(dst1, src1, width);
55  if (memcmp(dst0, dst1, width))
56  fail();
57  bench_new(dst1, src1, width);
58  }
59 
60  av_free(src0);
61  av_free(src1);
62  av_free(dst0);
63  av_free(dst1);
64 }
65 
67 {
69  int width = 16 * av_clip(rnd(), 16, 128);
70 
71  ff_llviddsp_init(&c);
72 
73  check_add_bytes(c, width);
74 
75  report("add_bytes");
76 }
Memory handling functions.
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:222
#define src
Definition: vp8dsp.c:254
#define report
Definition: checkasm.h:92
void(* add_bytes)(uint8_t *dst, uint8_t *src, ptrdiff_t w)
void checkasm_check_llviddsp(void)
Definition: llviddsp.c:66
uint8_t
#define fail()
Definition: checkasm.h:89
#define width
#define declare_func_emms(cpu_flags, ret,...)
Definition: checkasm.h:86
#define call_ref(...)
Definition: checkasm.h:95
#define src1
Definition: h264pred.c:139
static void check_add_bytes(LLVidDSPContext c, int width)
Definition: llviddsp.c:38
#define AV_CPU_FLAG_MMX
standard MMX
Definition: cpu.h:29
void ff_llviddsp_init(LLVidDSPContext *c)
#define check_func(func,...)
Definition: checkasm.h:81
#define src0
Definition: h264pred.c:138
common internal and external API header
static double c[64]
#define rnd()
Definition: checkasm.h:74
#define av_free(p)
#define bench_new(...)
Definition: checkasm.h:187
#define randomize_buffers(buf, size)
Definition: llviddsp.c:31
#define call_new(...)
Definition: checkasm.h:155