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 "third_party/googletest/src/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
28 using libvpx_test::ACMRandom;
29
30 namespace {
31
32 const int kNumPixels = 64 * 64;
33
34 typedef int (*Vp9DenoiserFilterFunc)(const uint8_t *sig, int sig_stride,
35 const uint8_t *mc_avg, int mc_avg_stride,
36 uint8_t *avg, int avg_stride,
37 int increase_denoising, BLOCK_SIZE bs,
38 int motion_magnitude);
39 typedef std::tuple<Vp9DenoiserFilterFunc, BLOCK_SIZE> VP9DenoiserTestParam;
40
41 class VP9DenoiserTest
42 : public ::testing::Test,
43 public ::testing::WithParamInterface<VP9DenoiserTestParam> {
44 public:
~VP9DenoiserTest()45 virtual ~VP9DenoiserTest() {}
46
SetUp()47 virtual void SetUp() { bs_ = GET_PARAM(1); }
48
TearDown()49 virtual void TearDown() { libvpx_test::ClearSystemState(); }
50
51 protected:
52 BLOCK_SIZE bs_;
53 };
54
TEST_P(VP9DenoiserTest,BitexactCheck)55 TEST_P(VP9DenoiserTest, BitexactCheck) {
56 ACMRandom rnd(ACMRandom::DeterministicSeed());
57 const int count_test_block = 4000;
58
59 // Allocate the space for input and output,
60 // where sig_block is the block to be denoised,
61 // mc_avg_block is the denoised reference block,
62 // avg_block_c is the denoised result from C code,
63 // avg_block_sse2 is the denoised result from SSE2 code.
64 DECLARE_ALIGNED(16, uint8_t, sig_block[kNumPixels]);
65 DECLARE_ALIGNED(16, uint8_t, mc_avg_block[kNumPixels]);
66 DECLARE_ALIGNED(16, uint8_t, avg_block_c[kNumPixels]);
67 DECLARE_ALIGNED(16, uint8_t, avg_block_sse2[kNumPixels]);
68
69 for (int i = 0; i < count_test_block; ++i) {
70 // Generate random motion magnitude, 20% of which exceed the threshold.
71 const int motion_magnitude_random =
72 rnd.Rand8() % static_cast<int>(MOTION_MAGNITUDE_THRESHOLD * 1.2);
73
74 // Initialize a test block with random number in range [0, 255].
75 for (int j = 0; j < kNumPixels; ++j) {
76 int temp = 0;
77 sig_block[j] = rnd.Rand8();
78 // The pixels in mc_avg_block are generated by adding a random
79 // number in range [-19, 19] to corresponding pixels in sig_block.
80 temp =
81 sig_block[j] + ((rnd.Rand8() % 2 == 0) ? -1 : 1) * (rnd.Rand8() % 20);
82 // Clip.
83 mc_avg_block[j] = (temp < 0) ? 0 : ((temp > 255) ? 255 : temp);
84 }
85
86 ASM_REGISTER_STATE_CHECK(vp9_denoiser_filter_c(sig_block, 64, mc_avg_block,
87 64, avg_block_c, 64, 0, bs_,
88 motion_magnitude_random));
89
90 ASM_REGISTER_STATE_CHECK(GET_PARAM(0)(sig_block, 64, mc_avg_block, 64,
91 avg_block_sse2, 64, 0, bs_,
92 motion_magnitude_random));
93
94 // Test bitexactness.
95 for (int h = 0; h < (4 << b_height_log2_lookup[bs_]); ++h) {
96 for (int w = 0; w < (4 << b_width_log2_lookup[bs_]); ++w) {
97 EXPECT_EQ(avg_block_c[h * 64 + w], avg_block_sse2[h * 64 + w]);
98 }
99 }
100 }
101 }
102
103 using std::make_tuple;
104
105 // Test for all block size.
106 #if HAVE_SSE2
107 INSTANTIATE_TEST_CASE_P(
108 SSE2, VP9DenoiserTest,
109 ::testing::Values(make_tuple(&vp9_denoiser_filter_sse2, BLOCK_8X8),
110 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_8X16),
111 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X8),
112 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X16),
113 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X32),
114 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X16),
115 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X32),
116 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X64),
117 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_64X32),
118 make_tuple(&vp9_denoiser_filter_sse2, BLOCK_64X64)));
119 #endif // HAVE_SSE2
120
121 #if HAVE_NEON
122 INSTANTIATE_TEST_CASE_P(
123 NEON, VP9DenoiserTest,
124 ::testing::Values(make_tuple(&vp9_denoiser_filter_neon, BLOCK_8X8),
125 make_tuple(&vp9_denoiser_filter_neon, BLOCK_8X16),
126 make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X8),
127 make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X16),
128 make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X32),
129 make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X16),
130 make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X32),
131 make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X64),
132 make_tuple(&vp9_denoiser_filter_neon, BLOCK_64X32),
133 make_tuple(&vp9_denoiser_filter_neon, BLOCK_64X64)));
134 #endif
135 } // namespace
136