115 lines
4.0 KiB
C++
115 lines
4.0 KiB
C++
/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <math.h>
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#include <stdlib.h>
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#include <string.h>
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "test/acm_random.h"
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#include "test/clear_system_state.h"
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#include "test/register_state_check.h"
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#include "test/util.h"
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#include "vp8/encoder/denoising.h"
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#include "vp8/common/reconinter.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_mem/vpx_mem.h"
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using libvpx_test::ACMRandom;
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namespace {
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const int kNumPixels = 16 * 16;
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class VP8DenoiserTest : public ::testing::TestWithParam<int> {
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public:
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virtual ~VP8DenoiserTest() {}
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virtual void SetUp() { increase_denoising_ = GetParam(); }
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virtual void TearDown() { libvpx_test::ClearSystemState(); }
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protected:
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int increase_denoising_;
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};
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TEST_P(VP8DenoiserTest, BitexactCheck) {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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const int count_test_block = 4000;
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const int stride = 16;
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// Allocate the space for input and output,
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// where sig_block_c/_sse2 is the block to be denoised,
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// mc_avg_block is the denoised reference block,
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// avg_block_c is the denoised result from C code,
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// avg_block_sse2 is the denoised result from SSE2 code.
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DECLARE_ALIGNED(16, uint8_t, sig_block_c[kNumPixels]);
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// Since in VP8 denoiser, the source signal will be changed,
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// we need another copy of the source signal as the input of sse2 code.
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DECLARE_ALIGNED(16, uint8_t, sig_block_sse2[kNumPixels]);
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DECLARE_ALIGNED(16, uint8_t, mc_avg_block[kNumPixels]);
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DECLARE_ALIGNED(16, uint8_t, avg_block_c[kNumPixels]);
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DECLARE_ALIGNED(16, uint8_t, avg_block_sse2[kNumPixels]);
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for (int i = 0; i < count_test_block; ++i) {
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// Generate random motion magnitude, 20% of which exceed the threshold.
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const int motion_magnitude_ran =
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rnd.Rand8() % static_cast<int>(MOTION_MAGNITUDE_THRESHOLD * 1.2);
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// Initialize a test block with random number in range [0, 255].
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for (int j = 0; j < kNumPixels; ++j) {
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int temp = 0;
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sig_block_sse2[j] = sig_block_c[j] = rnd.Rand8();
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// The pixels in mc_avg_block are generated by adding a random
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// number in range [-19, 19] to corresponding pixels in sig_block.
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temp =
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sig_block_c[j] + (rnd.Rand8() % 2 == 0 ? -1 : 1) * (rnd.Rand8() % 20);
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// Clip.
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mc_avg_block[j] = (temp < 0) ? 0 : ((temp > 255) ? 255 : temp);
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}
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// Test denosiser on Y component.
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ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_c(
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mc_avg_block, stride, avg_block_c, stride, sig_block_c, stride,
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motion_magnitude_ran, increase_denoising_));
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ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_sse2(
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mc_avg_block, stride, avg_block_sse2, stride, sig_block_sse2, stride,
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motion_magnitude_ran, increase_denoising_));
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// Check bitexactness.
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for (int h = 0; h < 16; ++h) {
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for (int w = 0; w < 16; ++w) {
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EXPECT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]);
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}
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}
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// Test denoiser on UV component.
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ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_c(
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mc_avg_block, stride, avg_block_c, stride, sig_block_c, stride,
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motion_magnitude_ran, increase_denoising_));
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ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_sse2(
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mc_avg_block, stride, avg_block_sse2, stride, sig_block_sse2, stride,
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motion_magnitude_ran, increase_denoising_));
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// Check bitexactness.
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for (int h = 0; h < 16; ++h) {
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for (int w = 0; w < 16; ++w) {
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EXPECT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]);
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}
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}
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}
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}
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// Test for all block size.
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INSTANTIATE_TEST_CASE_P(SSE2, VP8DenoiserTest, ::testing::Values(0, 1));
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} // namespace
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