1 /*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at https://www.aomedia.org/license/software-license. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at https://www.aomedia.org/license/patent-license.
10 */
11
12 #include <stdlib.h>
13 #include "gtest/gtest.h"
14 #include "aom_dsp_rtcd.h"
15 #include "EbDefinitions.h"
16 #include "random.h"
17 #include "util.h"
18 #include "EbUnitTestUtility.h"
19 #include "acm_random.h"
20 #include "corner_match.h"
21
22 using libaom_test::ACMRandom;
23
24 namespace {
25
26 typedef double (*ComputeCrossCorrFunc)(unsigned char *im1, int stride1, int x1,
27 int y1, unsigned char *im2, int stride2,
28 int x2, int y2);
29
30 using ::testing::make_tuple;
31 using ::testing::tuple;
32 typedef tuple<int, ComputeCrossCorrFunc> CornerMatchParam;
33
34 class AV1CornerMatchTest : public ::testing::TestWithParam<CornerMatchParam> {
35 public:
36 virtual ~AV1CornerMatchTest();
37 virtual void SetUp();
38
39 virtual void TearDown();
40
41 protected:
42 void RunCheckOutput(int run_times);
43 ComputeCrossCorrFunc target_func;
44
45 libaom_test::ACMRandom rnd_;
46 };
47
~AV1CornerMatchTest()48 AV1CornerMatchTest::~AV1CornerMatchTest() {}
SetUp()49 void AV1CornerMatchTest::SetUp() {
50 rnd_.Reset(ACMRandom::DeterministicSeed());
51 target_func = TEST_GET_PARAM(1);
52 }
TearDown()53 void AV1CornerMatchTest::TearDown() { }
54
RunCheckOutput(int run_times)55 void AV1CornerMatchTest::RunCheckOutput(int run_times) {
56 const int w = 128, h = 128;
57 const int num_iters = 10000;
58 int i, j;
59 uint64_t start_time_seconds, start_time_useconds;
60 uint64_t middle_time_seconds, middle_time_useconds;
61 uint64_t finish_time_seconds, finish_time_useconds;
62 double time_c = 0, time_o = 0, time;
63
64 uint8_t *input1 = new uint8_t[w * h];
65 uint8_t *input2 = new uint8_t[w * h];
66
67 // Test the two extreme cases:
68 // i) Random data, should have correlation close to 0
69 // ii) Linearly related data + noise, should have correlation close to 1
70 int mode = TEST_GET_PARAM(0);
71 if (mode == 0) {
72 for (i = 0; i < h; ++i)
73 for (j = 0; j < w; ++j) {
74 input1[i * w + j] = rnd_.Rand8();
75 input2[i * w + j] = rnd_.Rand8();
76 }
77 } else if (mode == 1) {
78 for (i = 0; i < h; ++i)
79 for (j = 0; j < w; ++j) {
80 int v = rnd_.Rand8();
81 input1[i * w + j] = v;
82 input2[i * w + j] = (v / 2) + (rnd_.Rand8() & 15);
83 }
84 }
85
86 for (i = 0; i < num_iters; ++i) {
87 int x1 = MATCH_SZ_BY2 + rnd_.PseudoUniform(w - 2 * MATCH_SZ_BY2);
88 int y1 = MATCH_SZ_BY2 + rnd_.PseudoUniform(h - 2 * MATCH_SZ_BY2);
89 int x2 = MATCH_SZ_BY2 + rnd_.PseudoUniform(w - 2 * MATCH_SZ_BY2);
90 int y2 = MATCH_SZ_BY2 + rnd_.PseudoUniform(h - 2 * MATCH_SZ_BY2);
91
92 double res_c =
93 svt_av1_compute_cross_correlation_c(input1, w, x1, y1, input2, w, x2, y2);
94 double res_simd = target_func(input1, w, x1, y1, input2, w, x2, y2);
95
96 if (run_times > 1) {
97 svt_av1_get_time(&start_time_seconds, &start_time_useconds);
98 for (j = 0; j < run_times; j++) {
99 svt_av1_compute_cross_correlation_c(
100 input1, w, x1, y1, input2, w, x2, y2);
101 }
102 svt_av1_get_time(&middle_time_seconds, &middle_time_useconds);
103
104 for (j = 0; j < run_times; j++) {
105 target_func(input1, w, x1, y1, input2, w, x2, y2);
106 }
107
108 svt_av1_get_time(&finish_time_seconds, &finish_time_useconds);
109
110 time = svt_av1_compute_overall_elapsed_time_ms(start_time_seconds,
111 start_time_useconds,
112 middle_time_seconds,
113 middle_time_useconds);
114 time_c += time;
115 time = svt_av1_compute_overall_elapsed_time_ms(middle_time_seconds,
116 middle_time_useconds,
117 finish_time_seconds,
118 finish_time_useconds);
119 time_o += time;
120
121
122
123 } else {
124 ASSERT_EQ(res_simd, res_c);
125 }
126 }
127
128 if (run_times > 1) {
129 printf("Average Nanoseconds per Function Call\n");
130 printf(" svt_av1_compute_cross_correlation_c : %6.2f\n",
131 1000000 * time_c / run_times * num_iters);
132 printf(
133 " av1_compute_cross_correlation (AVX2) : %6.2f (Comparison: "
134 "%5.2fx)\n",
135 1000000 * time_o / run_times * num_iters,
136 time_c / time_o);
137
138 }
139
140 delete[] input1;
141 delete[] input2;
142 }
143
TEST_P(AV1CornerMatchTest,CheckOutput)144 TEST_P(AV1CornerMatchTest, CheckOutput) { RunCheckOutput(1); }
TEST_P(AV1CornerMatchTest,DISABLED_Speed)145 TEST_P(AV1CornerMatchTest, DISABLED_Speed) { RunCheckOutput(1000); }
146
147 INSTANTIATE_TEST_CASE_P(
148 AV1CornerMatchTest, AV1CornerMatchTest,
149 ::testing::Values(make_tuple(0, &svt_av1_compute_cross_correlation_avx2),
150 make_tuple(1, &svt_av1_compute_cross_correlation_avx2)));
151
152 }
153