1 /*
2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include <math.h>
12 #include <stdlib.h>
13 #include <string.h>
14 #include <tuple>
15
16 #include "gtest/gtest.h"
17 #include "test/acm_random.h"
18 #include "test/clear_system_state.h"
19 #include "test/register_state_check.h"
20 #include "test/util.h"
21
22 #include "vpx_scale/yv12config.h"
23 #include "vpx/vpx_integer.h"
24 #include "vp9/common/vp9_reconinter.h"
25 #include "vp9/encoder/vp9_context_tree.h"
26 #include "vp9/encoder/vp9_denoiser.h"
27 #include "vpx_config.h"
28
29 using libvpx_test::ACMRandom;
30
31 namespace {
32
33 const int kNumPixels = 64 * 64;
34
35 typedef int (*Vp9DenoiserFilterFunc)(const uint8_t *sig, int sig_stride,
36 const uint8_t *mc_avg, int mc_avg_stride,
37 uint8_t *avg, int avg_stride,
38 int increase_denoising, BLOCK_SIZE bs,
39 int motion_magnitude);
40 typedef std::tuple<Vp9DenoiserFilterFunc, BLOCK_SIZE> VP9DenoiserTestParam;
41
42 class VP9DenoiserTest
43 : public ::testing::Test,
44 public ::testing::WithParamInterface<VP9DenoiserTestParam> {
45 public:
46 ~VP9DenoiserTest() override = default;
47
SetUp()48 void SetUp() override { bs_ = GET_PARAM(1); }
49
TearDown()50 void TearDown() override { libvpx_test::ClearSystemState(); }
51
52 protected:
53 BLOCK_SIZE bs_;
54 };
55 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(VP9DenoiserTest);
56
TEST_P(VP9DenoiserTest,BitexactCheck)57 TEST_P(VP9DenoiserTest, BitexactCheck) {
58 ACMRandom rnd(ACMRandom::DeterministicSeed());
59 const int count_test_block = 4000;
60
61 // Allocate the space for input and output,
62 // where sig_block is the block to be denoised,
63 // mc_avg_block is the denoised reference block,
64 // avg_block_c is the denoised result from C code,
65 // avg_block_sse2 is the denoised result from SSE2 code.
66 DECLARE_ALIGNED(16, uint8_t, sig_block[kNumPixels]);
67 DECLARE_ALIGNED(16, uint8_t, mc_avg_block[kNumPixels]);
68 DECLARE_ALIGNED(16, uint8_t, avg_block_c[kNumPixels]);
69 DECLARE_ALIGNED(16, uint8_t, avg_block_sse2[kNumPixels]);
70
71 for (int i = 0; i < count_test_block; ++i) {
72 // Generate random motion magnitude, 20% of which exceed the threshold.
73 const int motion_magnitude_random =
74 rnd.Rand8() % static_cast<int>(MOTION_MAGNITUDE_THRESHOLD * 1.2);
75
76 // Initialize a test block with random number in range [0, 255].
77 for (int j = 0; j < kNumPixels; ++j) {
78 int temp = 0;
79 sig_block[j] = rnd.Rand8();
80 // The pixels in mc_avg_block are generated by adding a random
81 // number in range [-19, 19] to corresponding pixels in sig_block.
82 temp =
83 sig_block[j] + ((rnd.Rand8() % 2 == 0) ? -1 : 1) * (rnd.Rand8() % 20);
84 // Clip.
85 mc_avg_block[j] = (temp < 0) ? 0 : ((temp > 255) ? 255 : temp);
86 }
87
88 ASM_REGISTER_STATE_CHECK(vp9_denoiser_filter_c(sig_block, 64, mc_avg_block,
89 64, avg_block_c, 64, 0, bs_,
90 motion_magnitude_random));
91
92 ASM_REGISTER_STATE_CHECK(GET_PARAM(0)(sig_block, 64, mc_avg_block, 64,
93 avg_block_sse2, 64, 0, bs_,
94 motion_magnitude_random));
95
96 // Test bitexactness.
97 for (int h = 0; h < (4 << b_height_log2_lookup[bs_]); ++h) {
98 for (int w = 0; w < (4 << b_width_log2_lookup[bs_]); ++w) {
99 EXPECT_EQ(avg_block_c[h * 64 + w], avg_block_sse2[h * 64 + w]);
100 }
101 }
102 }
103 }
104
105 using std::make_tuple;
106
107 // Test for all block size.
108 #if HAVE_SSE2
109 INSTANTIATE_TEST_SUITE_P(
110 SSE2, VP9DenoiserTest,
111 ::testing::Values(make_tuple(&vp9_denoiser_filter_sse2, BLOCK_8X8),
112 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_8X16),
113 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X8),
114 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X16),
115 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X32),
116 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X16),
117 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X32),
118 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X64),
119 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_64X32),
120 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_64X64)));
121 #endif // HAVE_SSE2
122
123 #if HAVE_NEON
124 INSTANTIATE_TEST_SUITE_P(
125 NEON, VP9DenoiserTest,
126 ::testing::Values(make_tuple(&vp9_denoiser_filter_neon, BLOCK_8X8),
127 make_tuple(&vp9_denoiser_filter_neon, BLOCK_8X16),
128 make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X8),
129 make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X16),
130 make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X32),
131 make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X16),
132 make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X32),
133 make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X64),
134 make_tuple(&vp9_denoiser_filter_neon, BLOCK_64X32),
135 make_tuple(&vp9_denoiser_filter_neon, BLOCK_64X64)));
136 #endif
137 } // namespace
138