FFmpeg
videodsp.c
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1 /*
2  * Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com>
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/videodsp.h"
24 #include "libavutil/internal.h"
25 #include "libavutil/intreadwrite.h"
26 #include "libavutil/mem_internal.h"
27 
28 #define randomize_buffers(w, h) \
29  do { \
30  int i; \
31  for (i = 0; i < w * h * sizeof(*src0); i += 4) \
32  AV_WN32A(((uint8_t *) src0) + i, rnd()); \
33  } while (0)
34 
35 #define iter_1d(type, fix, fix_val, var, var_start, var_end) \
36  for (fix = fix_val, var = var_start; var <= var_end; var++) { \
37  call_ref((type *) dst0, (const type *) (src0 + y * pw + x), \
38  bw * sizeof(type), pw * sizeof(type), \
39  bw, bh, x, y, pw, ph); \
40  call_new((type *) dst1, (const type *) (src1 + y * pw + x), \
41  bw * sizeof(type), pw * sizeof(type), \
42  bw, bh, x, y, pw, ph); \
43  if (memcmp(dst0, dst1, bw * bh * sizeof(type))) \
44  fail(); \
45  bench_new((type *) dst1, (const type *) (src1 + y * pw + x),\
46  bw * sizeof(type), pw * sizeof(type), \
47  bw, bh, x, y, pw, ph); \
48  }
49 
50 #define check_emu_edge_size(type, src_w, src_h, dst_w, dst_h) \
51  do { \
52  LOCAL_ALIGNED_16(type, src0, [src_w * src_h]); \
53  LOCAL_ALIGNED_16(type, src1, [src_w * src_h]); \
54  int bw = dst_w, bh = dst_h; \
55  int pw = src_w, ph = src_h; \
56  int y, x; \
57  randomize_buffers(src_w, src_h); \
58  memcpy(src1, src0, pw * ph * sizeof(type)); \
59  iter_1d(type, y, 0 - src_h, x, 0 - src_w, src_w - 0); \
60  iter_1d(type, x, src_w - 0, y, 0 - src_h, src_h - 0); \
61  iter_1d(type, y, src_h - 0, x, 0 - src_w, src_w - 0); \
62  iter_1d(type, x, 0 - src_w, y, 0 - src_h, src_h - 0); \
63  } while (0)
64 
65 #define check_emu_edge(type) \
66  do { \
67  LOCAL_ALIGNED_16(type, dst0, [64 * 64]); \
68  LOCAL_ALIGNED_16(type, dst1, [64 * 64]); \
69  declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT, \
70  void, type *dst, const type *src, \
71  ptrdiff_t dst_linesize, \
72  ptrdiff_t src_linesize, \
73  int block_w, int block_h, \
74  int src_x, int src_y, \
75  int src_w, int src_h); \
76  check_emu_edge_size(type, 16, 1, 64, 64); \
77  check_emu_edge_size(type, 16, 16, 64, 64); \
78  check_emu_edge_size(type, 64, 64, 64, 64); \
79  } while (0)
80 
82 {
83  VideoDSPContext vdsp;
84 
85  ff_videodsp_init(&vdsp, 8);
86  if (check_func(vdsp.emulated_edge_mc, "emulated_edge_mc_8"))
87  check_emu_edge(uint8_t);
88 
89  report("emulated_edge_mc");
90 }
mem_internal.h
check_func
#define check_func(func,...)
Definition: checkasm.h:125
check_emu_edge
#define check_emu_edge(type)
Definition: videodsp.c:65
checkasm.h
ff_videodsp_init
av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
Definition: videodsp.c:38
intreadwrite.h
checkasm_check_videodsp
void checkasm_check_videodsp(void)
Definition: videodsp.c:81
report
#define report
Definition: checkasm.h:137
VideoDSPContext::emulated_edge_mc
void(* emulated_edge_mc)(uint8_t *dst, const uint8_t *src, ptrdiff_t dst_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples.
Definition: videodsp.h:63
internal.h
VideoDSPContext
Definition: videodsp.h:41
videodsp.h