FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/rv34dsp.c
Date: 2026-04-27 13:09:51
Exec Total Coverage
Lines: 51 54 94.4%
Functions: 4 4 100.0%
Branches: 22 48 45.8%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2024 Institute of Software Chinese Academy of Sciences (ISCAS).
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 <stddef.h>
22 #include <stdint.h>
23 #include <string.h>
24
25 #include "libavutil/intreadwrite.h"
26 #include "libavutil/macros.h"
27 #include "libavutil/mem_internal.h"
28
29 #include "libavcodec/mathops.h"
30 #include "libavcodec/rv34dsp.h"
31
32 #include "checkasm.h"
33
34 #define randomize(buf, len) \
35 do { \
36 for (int i = 0; i < len; i++) \
37 buf[i] = rnd(); \
38 } while (0)
39
40 14 static void test_rv34_inv_transform_dc(RV34DSPContext *s) {
41 14 declare_func(void, int16_t *block);
42
43
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 14 if (check_func(s->rv34_inv_transform_dc, "rv34_inv_transform_dc")) {
44 DECLARE_ALIGNED_16(int16_t, p1)[4*4];
45 DECLARE_ALIGNED_16(int16_t, p2)[4*4];
46
47
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 34 randomize(p1, FF_ARRAY_ELEMS(p1));
48 2 memcpy(p2, p1, sizeof(p1));
49
50 2 call_ref(p1);
51 2 call_new(p2);
52
53
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 2 if (memcmp(p1, p2, sizeof(p1))) {
54 ✗ fail();
55 }
56
57
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 2 bench_new(p1);
58 }
59
60 14 report("rv34_inv_transform_dc");
61 14 }
62
63 14 static void test_rv34_idct_dc_add(RV34DSPContext *s) {
64 14 declare_func(void, uint8_t *dst, ptrdiff_t stride, int dc);
65
66
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 14 if (check_func(s->rv34_idct_dc_add, "rv34_idct_dc_add")) {
67 DECLARE_ALIGNED_16(uint8_t, p1)[4*4];
68 DECLARE_ALIGNED_16(uint8_t, p2)[4*4];
69
70
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 51 randomize(p1, FF_ARRAY_ELEMS(p1));
71 3 memcpy(p2, p1, sizeof(p1));
72
73 3 call_ref(p1, 4, 5);
74 3 call_new(p2, 4, 5);
75
76
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 3 if (memcmp(p1, p2, sizeof(p1))) {
77 ✗ fail();
78 }
79
80
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 3 bench_new(p1, 4, 5);
81 }
82
83 14 report("rv34_idct_dc_add");
84 14 }
85
86 14 static void test_rv34_idct_add(const RV34DSPContext *const s)
87 {
88 enum {
89 MAX_STRIDE = 256, ///< arbitrary, should be divisible by four
90 };
91 14 declare_func(void, uint8_t *dst, ptrdiff_t stride, int16_t *block);
92
93
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 14 if (check_func(s->rv34_idct_add, "rv34_idct_add")) {
94 DECLARE_ALIGNED_16(int16_t, block_ref)[4*4];
95 DECLARE_ALIGNED_16(int16_t, block_new)[4*4];
96
97 DECLARE_ALIGNED_4(uint8_t, dst_ref)[4*MAX_STRIDE + 4];
98 DECLARE_ALIGNED_4(uint8_t, dst_new)[4*MAX_STRIDE + 4];
99
100 2 ptrdiff_t stride = FFALIGN(1 + rnd() % MAX_STRIDE, 4);
101 2 uint8_t *dst_refp = dst_ref, *dst_newp = dst_new;
102
103
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 2 if (rnd() & 1) { // negate stride
104 2 dst_refp += 3 * stride;
105 2 dst_newp += 3 * stride;
106 2 stride = -stride;
107 }
108
109
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 34 for (size_t i = 0; i < FF_ARRAY_ELEMS(block_ref); ++i)
110 32 block_ref[i] = sign_extend(rnd(), 10);
111
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 516 for (size_t i = 0; i < sizeof(dst_ref); i += 4)
112 514 AV_WN32A(dst_ref + i, rnd());
113 2 memcpy(block_new, block_ref, sizeof(block_new));
114 2 memcpy(dst_new, dst_ref, sizeof(dst_new));
115
116 2 call_ref(dst_refp, stride, block_ref);
117 2 call_new(dst_newp, stride, block_new);
118
119
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 2 if (memcmp(dst_ref, dst_new, sizeof(dst_new)) ||
120
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 2 memcmp(block_ref, block_new, sizeof(block_new)))
121 ✗ fail();
122
123
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 2 bench_new(dst_new, stride, block_new);
124 }
125
126 14 report("rv34_idct_add");
127 14 }
128
129 14 void checkasm_check_rv34dsp(void)
130 {
131 14 RV34DSPContext s = { 0 };
132 14 ff_rv34dsp_init(&s);
133
134 14 test_rv34_inv_transform_dc(&s);
135 14 test_rv34_idct_dc_add(&s);
136 14 test_rv34_idct_add(&s);
137 14 }
138