FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/vf_blend.c
Date: 2026-04-20 16:43:18
Exec Total Coverage
Lines: 48 48 100.0%
Functions: 1 1 100.0%
Branches: 496 806 61.5%
Line Branch Exec Source
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/vf_blend_init.h"
24 #include "libavutil/common.h"
25 #include "libavutil/internal.h"
26 #include "libavutil/intreadwrite.h"
27 #include "libavutil/mem.h"
28
29 #define WIDTH 256
30 #define HEIGHT 256
31 #define BUF_UNITS 3
32 #define SIZE_PER_UNIT (WIDTH * HEIGHT)
33 #define BUF_SIZE (BUF_UNITS * SIZE_PER_UNIT)
34
35 #define randomize_buffers() \
36 do { \
37 int i, j; \
38 for (i = 0; i < HEIGHT; i++) { \
39 for (j = 0; j < WIDTH; j++) { \
40 top1[i * WIDTH + j] = \
41 top2[i * WIDTH + j] = i; \
42 bot1[i * WIDTH + j] = \
43 bot2[i * WIDTH + j] = j; \
44 } \
45 } \
46 for (i = 0; i < SIZE_PER_UNIT; i += 4) { \
47 uint32_t r = rnd(); \
48 AV_WN32A(dst1 + i, r); \
49 AV_WN32A(dst2 + i, r); \
50 } \
51 for (; i < BUF_SIZE; i += 4) { \
52 uint32_t r = rnd(); \
53 AV_WN32A(top1 + i, r); \
54 AV_WN32A(top2 + i, r); \
55 r = rnd(); \
56 AV_WN32A(bot1 + i, r); \
57 AV_WN32A(bot2 + i, r); \
58 r = rnd(); \
59 AV_WN32A(dst1 + i, r); \
60 AV_WN32A(dst2 + i, r); \
61 } \
62 } while (0)
63
64 #define check_blend_func(depth) \
65 do { \
66 int i, w; \
67 declare_func(void, const uint8_t *top, ptrdiff_t top_linesize, \
68 const uint8_t *bottom, ptrdiff_t bottom_linesize, \
69 uint8_t *dst, ptrdiff_t dst_linesize, \
70 ptrdiff_t width, ptrdiff_t height, \
71 struct FilterParams *param, struct SliceParams *sliceparam); \
72 w = WIDTH / depth; \
73 \
74 for (i = 0; i < BUF_UNITS - 1; i++) { \
75 int src_offset = i * SIZE_PER_UNIT + (BUF_UNITS - 1 - i) * depth; /* Test various alignments */ \
76 int dst_offset = i * SIZE_PER_UNIT; /* dst must be aligned */ \
77 randomize_buffers(); \
78 call_ref(top1 + src_offset, w, bot1 + src_offset, w, \
79 dst1 + dst_offset, w, w, HEIGHT, &param, NULL); \
80 call_new(top2 + src_offset, w, bot2 + src_offset, w, \
81 dst2 + dst_offset, w, w, HEIGHT, &param, NULL); \
82 if (memcmp(top1, top2, BUF_SIZE) || memcmp(bot1, bot2, BUF_SIZE) || memcmp(dst1, dst2, BUF_SIZE)) \
83 fail(); \
84 } \
85 bench_new(top2, w / 4, bot2, w / 4, dst2, w / 4, \
86 w / 4, HEIGHT / 4, &param, NULL); \
87 } while (0)
88
89 14 void checkasm_check_blend(void)
90 {
91 14 uint8_t *top1 = av_malloc(BUF_SIZE);
92 14 uint8_t *top2 = av_malloc(BUF_SIZE);
93 14 uint8_t *bot1 = av_malloc(BUF_SIZE);
94 14 uint8_t *bot2 = av_malloc(BUF_SIZE);
95 14 uint8_t *dst1 = av_malloc(BUF_SIZE);
96 14 uint8_t *dst2 = av_malloc(BUF_SIZE);
97 14 FilterParams param = {
98 .opacity = 1.0,
99 };
100
101 #define check_and_report(name, val, depth) \
102 param.mode = val; \
103 ff_blend_init(&param, depth * 8); \
104 if (check_func(param.blend, #name)) \
105 check_blend_func(depth);
106
107
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125 14 report("8bit");
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 689684 check_and_report(and_16, BLEND_AND, 2)
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 689684 check_and_report(darken_16, BLEND_DARKEN, 2)
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 689684 check_and_report(grainextract_16, BLEND_GRAINEXTRACT, 2)
133
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 689684 check_and_report(difference_16, BLEND_DIFFERENCE, 2)
134
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 689684 check_and_report(extremity_16, BLEND_EXTREMITY, 2)
135
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 689684 check_and_report(negation_16, BLEND_NEGATION, 2)
136
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 689684 check_and_report(lighten_16, BLEND_LIGHTEN, 2)
137
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 689684 check_and_report(or_16, BLEND_OR, 2)
138
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 689684 check_and_report(phoenix_16, BLEND_PHOENIX, 2)
139
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 689684 check_and_report(subtract_16, BLEND_SUBTRACT, 2)
140
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 689684 check_and_report(xor_16, BLEND_SUBTRACT, 2)
141
142 14 report("16bit");
143
144 14 av_freep(&top1);
145 14 av_freep(&top2);
146 14 av_freep(&bot1);
147 14 av_freep(&bot2);
148 14 av_freep(&dst1);
149 14 av_freep(&dst2);
150 14 }
151