FFmpeg  4.0
vf_hflip.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
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10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License along
15  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17  */
18 
19 #include <string.h>
20 #include "checkasm.h"
21 #include "libavfilter/hflip.h"
22 #include "libavutil/intreadwrite.h"
23 
24 #define WIDTH 256
25 #define WIDTH_PADDED 256 + 32
26 
27 #define randomize_buffers(buf, size) \
28  do { \
29  int j; \
30  uint8_t *tmp_buf = (uint8_t *)buf;\
31  for (j = 0; j < size; j++) \
32  tmp_buf[j] = rnd() & 0xFF; \
33  } while (0)
34 
35 static void check_hflip(int step, const char * report_name){
39  int w = WIDTH;
40  int i;
41  int step_array[4] = {1, 1, 1, 1};
42  FlipContext s;
43 
44  declare_func(void, const uint8_t *src, uint8_t *dst, int w);
45 
46  memset(src, 0, WIDTH_PADDED);
47  memset(dst_ref, 0, WIDTH_PADDED);
48  memset(dst_new, 0, WIDTH_PADDED);
50 
51  if (step == 2) {
52  w /= 2;
53  for (i = 0; i < 4; i++)
54  step_array[i] = step;
55  }
56 
57  ff_hflip_init(&s, step_array, 4);
58 
59  if (check_func(s.flip_line[0], "hflip_%s", report_name)) {
60  for (i = 1; i < w; i++) {
61  call_ref(src + (w - 1) * step, dst_ref, i);
62  call_new(src + (w - 1) * step, dst_new, i);
63  if (memcmp(dst_ref, dst_new, i * step))
64  fail();
65  }
66  bench_new(src + (w - 1) * step, dst_new, w);
67  }
68 }
70 {
71  check_hflip(1, "byte");
72  report("hflip_byte");
73 
74  check_hflip(2, "short");
75  report("hflip_short");
76 }
const char * s
Definition: avisynth_c.h:768
#define randomize_buffers(buf, size)
Definition: vf_hflip.c:27
void checkasm_check_vf_hflip(void)
Definition: vf_hflip.c:69
#define WIDTH_PADDED
Definition: vf_hflip.c:25
#define src
Definition: vp8dsp.c:254
#define report
Definition: checkasm.h:119
uint8_t
#define declare_func(ret,...)
Definition: checkasm.h:111
#define fail()
Definition: checkasm.h:116
uint8_t w
Definition: llviddspenc.c:38
#define call_ref(...)
Definition: checkasm.h:122
#define WIDTH
Definition: vf_hflip.c:24
int ff_hflip_init(FlipContext *s, int step[4], int nb_planes)
Definition: vf_hflip.c:147
#define check_func(func,...)
Definition: checkasm.h:107
void(* flip_line[4])(const uint8_t *src, uint8_t *dst, int w)
Definition: hflip.h:33
#define LOCAL_ALIGNED_32(t, v,...)
Definition: internal.h:137
static void check_hflip(int step, const char *report_name)
Definition: vf_hflip.c:35
#define bench_new(...)
Definition: checkasm.h:249
#define call_new(...)
Definition: checkasm.h:189