2 * Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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.
15 #include "third_party/googletest/src/include/gtest/gtest.h"
16 #include "test/acm_random.h"
17 #include "test/clear_system_state.h"
18 #include "test/register_state_check.h"
19 #include "test/util.h"
21 #include "vp8/encoder/denoising.h"
22 #include "vp8/common/reconinter.h"
23 #include "vpx/vpx_integer.h"
24 #include "vpx_mem/vpx_mem.h"
26 using libvpx_test::ACMRandom;
30 const int kNumPixels = 16 * 16;
32 : public ::testing::TestWithParam<int> {
34 virtual ~VP8DenoiserTest() {}
36 virtual void SetUp() {
37 increase_denoising = GetParam();
40 virtual void TearDown() { libvpx_test::ClearSystemState(); }
43 int increase_denoising;
46 TEST_P(VP8DenoiserTest, BitexactCheck) {
47 ACMRandom rnd(ACMRandom::DeterministicSeed());
48 const int count_test_block = 4000;
49 const int stride = 16;
51 // Allocate the space for input and output,
52 // where sig_block_c/_sse2 is the block to be denoised,
53 // mc_avg_block is the denoised reference block,
54 // avg_block_c is the denoised result from C code,
55 // avg_block_sse2 is the denoised result from SSE2 code.
56 DECLARE_ALIGNED_ARRAY(16, uint8_t, sig_block_c, kNumPixels);
57 // Since in VP8 denoiser, the source signal will be changed,
58 // we need another copy of the source signal as the input of sse2 code.
59 DECLARE_ALIGNED_ARRAY(16, uint8_t, sig_block_sse2, kNumPixels);
60 DECLARE_ALIGNED_ARRAY(16, uint8_t, mc_avg_block, kNumPixels);
61 DECLARE_ALIGNED_ARRAY(16, uint8_t, avg_block_c, kNumPixels);
62 DECLARE_ALIGNED_ARRAY(16, uint8_t, avg_block_sse2, kNumPixels);
64 for (int i = 0; i < count_test_block; ++i) {
65 // Generate random motion magnitude, 20% of which exceed the threshold.
66 uint8_t motion_magnitude_random
67 = rnd.Rand8() % (uint8_t)(MOTION_MAGNITUDE_THRESHOLD * 1.2);
69 // Initialize a test block with random number in range [0, 255].
70 for (int j = 0; j < kNumPixels; ++j) {
72 sig_block_sse2[j] = sig_block_c[j] = rnd.Rand8();
73 // The pixels in mc_avg_block are generated by adding a random
74 // number in range [-19, 19] to corresponding pixels in sig_block.
75 temp = sig_block_c[j] + (rnd.Rand8() % 2 == 0? -1 : 1) *
78 mc_avg_block[j] = (temp < 0? 0 : (temp > 255? 255 : temp));
81 // Test denosiser on Y component.
82 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_c(mc_avg_block, stride,
83 avg_block_c, stride, sig_block_c, stride,
84 motion_magnitude_random, increase_denoising));
86 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_sse2(mc_avg_block, stride,
87 avg_block_sse2, stride, sig_block_sse2, stride,
88 motion_magnitude_random, increase_denoising));
90 // Check bitexactness.
91 for (int h = 0; h < 16; ++h) {
92 for (int w = 0; w < 16; ++w) {
93 EXPECT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]);
97 // Test denosiser on UV component.
98 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_c(mc_avg_block, stride,
99 avg_block_c, stride, sig_block_c, stride,
100 motion_magnitude_random, increase_denoising));
102 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_sse2(mc_avg_block, stride,
103 avg_block_sse2, stride, sig_block_sse2, stride,
104 motion_magnitude_random, increase_denoising));
106 // Check bitexactness.
107 for (int h = 0; h < 16; ++h) {
108 for (int w = 0; w < 16; ++w) {
109 EXPECT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]);
115 // Test for all block size.
116 INSTANTIATE_TEST_CASE_P(
117 SSE2, VP8DenoiserTest,
118 ::testing::Values(0, 1));