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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 | * | ||
9 | * FFmpeg is distributed in the hope that it will be useful, | ||
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 <float.h> | ||
20 | #include "libavutil/lls.h" | ||
21 | #include "checkasm.h" | ||
22 | |||
23 | #define randomize_buffer(buf) \ | ||
24 | do { \ | ||
25 | double bmg[2], stddev = 10.0; \ | ||
26 | \ | ||
27 | for (size_t i = 0; i < MAX_VARS_ALIGN; i += 2) { \ | ||
28 | av_bmg_get(&checkasm_lfg, bmg); \ | ||
29 | buf[i] = bmg[0] * stddev; \ | ||
30 | buf[i + 1] = bmg[1] * stddev; \ | ||
31 | } \ | ||
32 | } while(0); | ||
33 | |||
34 | 12 | static void test_update(LLSModel *lls, const double *var) | |
35 | { | ||
36 | double refcovar[MAX_VARS][MAX_VARS]; | ||
37 | 12 | declare_func(void, LLSModel *, const double *); | |
38 | |||
39 | 12 | call_ref(lls, var); | |
40 | |||
41 |
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396 | for (size_t i = 0; i < MAX_VARS; i++) |
42 |
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12672 | for (size_t j = 0; j < MAX_VARS; j++) |
43 | 12288 | refcovar[i][j] = lls->covariance[i][j]; | |
44 | |||
45 | 12 | memset(lls->covariance, 0, sizeof (lls->covariance)); | |
46 | 12 | call_new(lls, var); | |
47 | |||
48 |
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220 | for (size_t i = 0; i < lls->indep_count; i++) |
49 |
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2776 | for (size_t j = i; j < lls->indep_count; j++) |
50 |
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2568 | if (!double_near_abs_eps(refcovar[i][j], lls->covariance[i][j], |
51 | 8 * DBL_EPSILON)) { | ||
52 | ✗ | fprintf(stderr, "%zu, %zu: %- .12f - %- .12f = % .12g\n", i, j, | |
53 | refcovar[i][j], lls->covariance[i][j], | ||
54 | ✗ | refcovar[i][j] - lls->covariance[i][j]); | |
55 | ✗ | fail(); | |
56 | } | ||
57 | |||
58 |
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12 | bench_new(lls, var); |
59 | 12 | } | |
60 | |||
61 | #define EPS 0.2 | ||
62 | 12 | static void test_evaluate(LLSModel *lls, const double *param, int order) | |
63 | { | ||
64 | double refprod, newprod; | ||
65 | 12 | declare_func_float(double, LLSModel *, const double *, int); | |
66 | |||
67 | 12 | refprod = call_ref(lls, param, order); | |
68 | 12 | newprod = call_new(lls, param, order); | |
69 | |||
70 |
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12 | if (!double_near_abs_eps(refprod, newprod, EPS)) { |
71 | ✗ | fprintf(stderr, "%- .12f - %- .12f = % .12g\n", | |
72 | refprod, newprod, refprod - newprod); | ||
73 | ✗ | fail(); | |
74 | } | ||
75 | |||
76 |
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12 | if (order == lls->indep_count) |
77 |
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6 | bench_new(lls, param, order); |
78 | 12 | } | |
79 | |||
80 | 13 | void checkasm_check_lls(void) | |
81 | { | ||
82 | static const unsigned char counts[] = { 8, 12, MAX_VARS, }; | ||
83 | |||
84 |
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52 | for (size_t i = 0; i < FF_ARRAY_ELEMS(counts); i++) { |
85 | 39 | LOCAL_ALIGNED_32(double, var, [MAX_VARS_ALIGN]); | |
86 | 39 | LOCAL_ALIGNED_32(double, param, [FFALIGN(MAX_VARS+2,4)]); | |
87 | LLSModel lls; | ||
88 | |||
89 | 39 | avpriv_init_lls(&lls, counts[i]); | |
90 |
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741 | randomize_buffer(var); |
91 |
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741 | randomize_buffer(param); |
92 | |||
93 |
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39 | if (check_func(lls.update_lls, "update_lls_%d", counts[i])) |
94 | 12 | test_update(&lls, var); | |
95 |
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117 | for (size_t j = 0; j <= i; j++) |
96 |
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78 | if (check_func(lls.evaluate_lls, "evaluate_lls_%d_%d", counts[i], |
97 | counts[j])) | ||
98 | 12 | test_evaluate(&lls, param + 1, counts[j]); | |
99 | } | ||
100 | 13 | report("lls"); | |
101 | 13 | } | |
102 |