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;
31 class VP8DenoiserTest : public ::testing::TestWithParam<int> {
33 virtual ~VP8DenoiserTest() {}
35 virtual void SetUp() { increase_denoising_ = GetParam(); }
37 virtual void TearDown() { libvpx_test::ClearSystemState(); }
40 int increase_denoising_;
43 TEST_P(VP8DenoiserTest, BitexactCheck) {
44 ACMRandom rnd(ACMRandom::DeterministicSeed());
45 const int count_test_block = 4000;
46 const int stride = 16;
48 // Allocate the space for input and output,
49 // where sig_block_c/_sse2 is the block to be denoised,
50 // mc_avg_block is the denoised reference block,
51 // avg_block_c is the denoised result from C code,
52 // avg_block_sse2 is the denoised result from SSE2 code.
53 DECLARE_ALIGNED(16, uint8_t, sig_block_c[kNumPixels]);
54 // Since in VP8 denoiser, the source signal will be changed,
55 // we need another copy of the source signal as the input of sse2 code.
56 DECLARE_ALIGNED(16, uint8_t, sig_block_sse2[kNumPixels]);
57 DECLARE_ALIGNED(16, uint8_t, mc_avg_block[kNumPixels]);
58 DECLARE_ALIGNED(16, uint8_t, avg_block_c[kNumPixels]);
59 DECLARE_ALIGNED(16, uint8_t, avg_block_sse2[kNumPixels]);
61 for (int i = 0; i < count_test_block; ++i) {
62 // Generate random motion magnitude, 20% of which exceed the threshold.
63 const int motion_magnitude_ran =
64 rnd.Rand8() % static_cast<int>(MOTION_MAGNITUDE_THRESHOLD * 1.2);
66 // Initialize a test block with random number in range [0, 255].
67 for (int j = 0; j < kNumPixels; ++j) {
69 sig_block_sse2[j] = sig_block_c[j] = rnd.Rand8();
70 // The pixels in mc_avg_block are generated by adding a random
71 // number in range [-19, 19] to corresponding pixels in sig_block.
73 sig_block_c[j] + (rnd.Rand8() % 2 == 0 ? -1 : 1) * (rnd.Rand8() % 20);
75 mc_avg_block[j] = (temp < 0) ? 0 : ((temp > 255) ? 255 : temp);
78 // Test denosiser on Y component.
79 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_c(
80 mc_avg_block, stride, avg_block_c, stride, sig_block_c, stride,
81 motion_magnitude_ran, increase_denoising_));
83 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_sse2(
84 mc_avg_block, stride, avg_block_sse2, stride, sig_block_sse2, stride,
85 motion_magnitude_ran, increase_denoising_));
87 // Check bitexactness.
88 for (int h = 0; h < 16; ++h) {
89 for (int w = 0; w < 16; ++w) {
90 EXPECT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]);
94 // Test denoiser on UV component.
95 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_c(
96 mc_avg_block, stride, avg_block_c, stride, sig_block_c, stride,
97 motion_magnitude_ran, increase_denoising_));
99 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_sse2(
100 mc_avg_block, stride, avg_block_sse2, stride, sig_block_sse2, stride,
101 motion_magnitude_ran, increase_denoising_));
103 // Check bitexactness.
104 for (int h = 0; h < 16; ++h) {
105 for (int w = 0; w < 16; ++w) {
106 EXPECT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]);
112 // Test for all block size.
113 INSTANTIATE_TEST_SUITE_P(SSE2, VP8DenoiserTest, ::testing::Values(0, 1));