FFmpeg
vf_blend.c
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1 /*
2  * Copyright (c) 2016 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 "libavfilter/blend.h"
24 #include "libavutil/common.h"
25 #include "libavutil/internal.h"
26 #include "libavutil/intreadwrite.h"
27 
28 #define WIDTH 256
29 #define HEIGHT 256
30 #define BUF_UNITS 3
31 #define SIZE_PER_UNIT (WIDTH * HEIGHT)
32 #define BUF_SIZE (BUF_UNITS * SIZE_PER_UNIT)
33 
34 #define randomize_buffers() \
35  do { \
36  int i, j; \
37  for (i = 0; i < HEIGHT; i++) { \
38  for (j = 0; j < WIDTH; j++) { \
39  top1[i * WIDTH + j] = \
40  top2[i * WIDTH + j] = i; \
41  bot1[i * WIDTH + j] = \
42  bot2[i * WIDTH + j] = j; \
43  } \
44  } \
45  for (i = 0; i < SIZE_PER_UNIT; i += 4) { \
46  uint32_t r = rnd(); \
47  AV_WN32A(dst1 + i, r); \
48  AV_WN32A(dst2 + i, r); \
49  } \
50  for (; i < BUF_SIZE; i += 4) { \
51  uint32_t r = rnd(); \
52  AV_WN32A(top1 + i, r); \
53  AV_WN32A(top2 + i, r); \
54  r = rnd(); \
55  AV_WN32A(bot1 + i, r); \
56  AV_WN32A(bot2 + i, r); \
57  r = rnd(); \
58  AV_WN32A(dst1 + i, r); \
59  AV_WN32A(dst2 + i, r); \
60  } \
61  } while (0)
62 
63 #define check_blend_func(depth) \
64  do { \
65  int i, w; \
66  declare_func(void, const uint8_t *top, ptrdiff_t top_linesize, \
67  const uint8_t *bottom, ptrdiff_t bottom_linesize, \
68  uint8_t *dst, ptrdiff_t dst_linesize, \
69  ptrdiff_t width, ptrdiff_t height, \
70  struct FilterParams *param, double *values); \
71  w = WIDTH / depth; \
72  \
73  for (i = 0; i < BUF_UNITS - 1; i++) { \
74  int src_offset = i * SIZE_PER_UNIT + (BUF_UNITS - 1 - i) * depth; /* Test various alignments */ \
75  int dst_offset = i * SIZE_PER_UNIT; /* dst must be aligned */ \
76  randomize_buffers(); \
77  call_ref(top1 + src_offset, w, bot1 + src_offset, w, \
78  dst1 + dst_offset, w, w, HEIGHT, &param, NULL); \
79  call_new(top2 + src_offset, w, bot2 + src_offset, w, \
80  dst2 + dst_offset, w, w, HEIGHT, &param, NULL); \
81  if (memcmp(top1, top2, BUF_SIZE) || memcmp(bot1, bot2, BUF_SIZE) || memcmp(dst1, dst2, BUF_SIZE)) \
82  fail(); \
83  } \
84  bench_new(top2, w / 4, bot2, w / 4, dst2, w / 4, \
85  w / 4, HEIGHT / 4, &param, NULL); \
86  } while (0)
87 
89 {
90  uint8_t *top1 = av_malloc(BUF_SIZE);
91  uint8_t *top2 = av_malloc(BUF_SIZE);
92  uint8_t *bot1 = av_malloc(BUF_SIZE);
93  uint8_t *bot2 = av_malloc(BUF_SIZE);
94  uint8_t *dst1 = av_malloc(BUF_SIZE);
95  uint8_t *dst2 = av_malloc(BUF_SIZE);
96  FilterParams param = {
97  .opacity = 1.0,
98  };
99 
100 #define check_and_report(name, val, depth) \
101  param.mode = val; \
102  ff_blend_init(&param, depth - 1); \
103  if (check_func(param.blend, #name)) \
104  check_blend_func(depth);
105 
106  check_and_report(addition, BLEND_ADDITION, 1)
107  check_and_report(grainmerge, BLEND_GRAINMERGE, 1)
108  check_and_report(and, BLEND_AND, 1)
109  check_and_report(average, BLEND_AVERAGE, 1)
110  check_and_report(darken, BLEND_DARKEN, 1)
111  check_and_report(grainextract, BLEND_GRAINEXTRACT, 1)
112  check_and_report(hardmix, BLEND_HARDMIX, 1)
113  check_and_report(lighten, BLEND_LIGHTEN, 1)
115  check_and_report(or, BLEND_OR, 1)
116  check_and_report(phoenix, BLEND_PHOENIX, 1)
117  check_and_report(screen, BLEND_SCREEN, 1)
118  check_and_report(subtract, BLEND_SUBTRACT, 1)
119  check_and_report(xor, BLEND_XOR, 1)
120  check_and_report(difference, BLEND_DIFFERENCE, 1)
121  check_and_report(extremity, BLEND_EXTREMITY, 1)
122  check_and_report(negation, BLEND_NEGATION, 1)
123 
124  report("8bit");
125 
126  check_and_report(addition_16, BLEND_ADDITION, 2)
127  check_and_report(grainmerge_16, BLEND_GRAINMERGE, 2)
128  check_and_report(and_16, BLEND_AND, 2)
129  check_and_report(average_16, BLEND_AVERAGE, 2)
130  check_and_report(darken_16, BLEND_DARKEN, 2)
131  check_and_report(grainextract_16, BLEND_GRAINEXTRACT, 2)
132  check_and_report(difference_16, BLEND_DIFFERENCE, 2)
133  check_and_report(extremity_16, BLEND_EXTREMITY, 2)
134  check_and_report(negation_16, BLEND_NEGATION, 2)
135  check_and_report(lighten_16, BLEND_LIGHTEN, 2)
136  check_and_report(or_16, BLEND_OR, 2)
137  check_and_report(phoenix_16, BLEND_PHOENIX, 2)
138  check_and_report(subtract_16, BLEND_SUBTRACT, 2)
139  check_and_report(xor_16, BLEND_SUBTRACT, 2)
140 
141  report("16bit");
142 
143  av_freep(&top1);
144  av_freep(&top2);
145  av_freep(&bot1);
146  av_freep(&bot2);
147  av_freep(&dst1);
148  av_freep(&dst2);
149 }
double opacity
Definition: blend.h:67
#define report
Definition: checkasm.h:124
uint8_t
#define av_malloc(s)
static SoftFloat_IEEE754 multiply(SoftFloat_IEEE754 a, SoftFloat_IEEE754 b)
multiply two softfloats and handle the rounding off
Definition: alsdec.c:1382
#define check_and_report(name, val, depth)
common internal API header
filter data
Definition: mlp.h:74
void checkasm_check_blend(void)
Definition: vf_blend.c:88
common internal and external API header
#define BUF_SIZE
Definition: vf_blend.c:32
Definition: blend.h:44
#define av_freep(p)