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| 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 |
| 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" |
| 20 |
| 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" |
| 25 |
| 26 using libvpx_test::ACMRandom; |
| 27 |
| 28 namespace { |
| 29 |
| 30 const int kNumPixels = 16 * 16; |
| 31 class VP8DenoiserTest : public ::testing::TestWithParam<int> { |
| 32 public: |
| 33 virtual ~VP8DenoiserTest() {} |
| 34 |
| 35 virtual void SetUp() { |
| 36 increase_denoising_ = GetParam(); |
| 37 } |
| 38 |
| 39 virtual void TearDown() { libvpx_test::ClearSystemState(); } |
| 40 |
| 41 protected: |
| 42 int increase_denoising_; |
| 43 }; |
| 44 |
| 45 TEST_P(VP8DenoiserTest, BitexactCheck) { |
| 46 ACMRandom rnd(ACMRandom::DeterministicSeed()); |
| 47 const int count_test_block = 4000; |
| 48 const int stride = 16; |
| 49 |
| 50 // Allocate the space for input and output, |
| 51 // where sig_block_c/_sse2 is the block to be denoised, |
| 52 // mc_avg_block is the denoised reference block, |
| 53 // avg_block_c is the denoised result from C code, |
| 54 // avg_block_sse2 is the denoised result from SSE2 code. |
| 55 DECLARE_ALIGNED_ARRAY(16, uint8_t, sig_block_c, kNumPixels); |
| 56 // Since in VP8 denoiser, the source signal will be changed, |
| 57 // we need another copy of the source signal as the input of sse2 code. |
| 58 DECLARE_ALIGNED_ARRAY(16, uint8_t, sig_block_sse2, kNumPixels); |
| 59 DECLARE_ALIGNED_ARRAY(16, uint8_t, mc_avg_block, kNumPixels); |
| 60 DECLARE_ALIGNED_ARRAY(16, uint8_t, avg_block_c, kNumPixels); |
| 61 DECLARE_ALIGNED_ARRAY(16, uint8_t, avg_block_sse2, kNumPixels); |
| 62 |
| 63 for (int i = 0; i < count_test_block; ++i) { |
| 64 // Generate random motion magnitude, 20% of which exceed the threshold. |
| 65 const int motion_magnitude_ran = |
| 66 rnd.Rand8() % static_cast<int>(MOTION_MAGNITUDE_THRESHOLD * 1.2); |
| 67 |
| 68 // Initialize a test block with random number in range [0, 255]. |
| 69 for (int j = 0; j < kNumPixels; ++j) { |
| 70 int temp = 0; |
| 71 sig_block_sse2[j] = sig_block_c[j] = rnd.Rand8(); |
| 72 // The pixels in mc_avg_block are generated by adding a random |
| 73 // number in range [-19, 19] to corresponding pixels in sig_block. |
| 74 temp = sig_block_c[j] + (rnd.Rand8() % 2 == 0 ? -1 : 1) * |
| 75 (rnd.Rand8() % 20); |
| 76 // Clip. |
| 77 mc_avg_block[j] = (temp < 0) ? 0 : ((temp > 255) ? 255 : temp); |
| 78 } |
| 79 |
| 80 // Test denosiser on Y component. |
| 81 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_c( |
| 82 mc_avg_block, stride, avg_block_c, stride, sig_block_c, stride, |
| 83 motion_magnitude_ran, increase_denoising_)); |
| 84 |
| 85 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_sse2( |
| 86 mc_avg_block, stride, avg_block_sse2, stride, sig_block_sse2, stride, |
| 87 motion_magnitude_ran, increase_denoising_)); |
| 88 |
| 89 // Check bitexactness. |
| 90 for (int h = 0; h < 16; ++h) { |
| 91 for (int w = 0; w < 16; ++w) { |
| 92 EXPECT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]); |
| 93 } |
| 94 } |
| 95 |
| 96 // Test denoiser on UV component. |
| 97 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_c( |
| 98 mc_avg_block, stride, avg_block_c, stride, sig_block_c, stride, |
| 99 motion_magnitude_ran, increase_denoising_)); |
| 100 |
| 101 ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_sse2( |
| 102 mc_avg_block, stride, avg_block_sse2, stride, sig_block_sse2, stride, |
| 103 motion_magnitude_ran, increase_denoising_)); |
| 104 |
| 105 // Check bitexactness. |
| 106 for (int h = 0; h < 16; ++h) { |
| 107 for (int w = 0; w < 16; ++w) { |
| 108 EXPECT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]); |
| 109 } |
| 110 } |
| 111 } |
| 112 } |
| 113 |
| 114 // Test for all block size. |
| 115 INSTANTIATE_TEST_CASE_P(SSE2, VP8DenoiserTest, ::testing::Values(0, 1)); |
| 116 } // namespace |
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