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/*
* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/acm_random.h"
#include "test/clear_system_state.h"
#include "test/register_state_check.h"
#include "test/util.h"
#include "vp8/encoder/denoising.h"
#include "vp8/common/reconinter.h"
#include "vpx/vpx_integer.h"
#include "vpx_mem/vpx_mem.h"
using libvpx_test::ACMRandom;
namespace {
const int kNumPixels = 16 * 16;
class VP8DenoiserTest : public ::testing::TestWithParam<int> {
public:
~VP8DenoiserTest() override = default;
void SetUp() override { increase_denoising_ = GetParam(); }
void TearDown() override { libvpx_test::ClearSystemState(); }
protected:
int increase_denoising_;
};
// TODO(https://crbug.com/webm/1718): This test fails with gcc 8-10.
#if defined(__GNUC__) && __GNUC__ >= 8
TEST_P(VP8DenoiserTest, DISABLED_BitexactCheck) {
#else
TEST_P(VP8DenoiserTest, BitexactCheck) {
#endif
ACMRandom rnd(ACMRandom::DeterministicSeed());
const int count_test_block = 4000;
const int stride = 16;
// Allocate the space for input and output,
// where sig_block_c/_sse2 is the block to be denoised,
// mc_avg_block is the denoised reference block,
// avg_block_c is the denoised result from C code,
// avg_block_sse2 is the denoised result from SSE2 code.
DECLARE_ALIGNED(16, uint8_t, sig_block_c[kNumPixels]);
// Since in VP8 denoiser, the source signal will be changed,
// we need another copy of the source signal as the input of sse2 code.
DECLARE_ALIGNED(16, uint8_t, sig_block_sse2[kNumPixels]);
DECLARE_ALIGNED(16, uint8_t, mc_avg_block[kNumPixels]);
DECLARE_ALIGNED(16, uint8_t, avg_block_c[kNumPixels]);
DECLARE_ALIGNED(16, uint8_t, avg_block_sse2[kNumPixels]);
for (int i = 0; i < count_test_block; ++i) {
// Generate random motion magnitude, 20% of which exceed the threshold.
const int motion_magnitude_ran =
rnd.Rand8() % static_cast<int>(MOTION_MAGNITUDE_THRESHOLD * 1.2);
// Initialize a test block with random number in range [0, 255].
for (int j = 0; j < kNumPixels; ++j) {
int temp = 0;
sig_block_sse2[j] = sig_block_c[j] = rnd.Rand8();
// The pixels in mc_avg_block are generated by adding a random
// number in range [-19, 19] to corresponding pixels in sig_block.
temp =
sig_block_c[j] + (rnd.Rand8() % 2 == 0 ? -1 : 1) * (rnd.Rand8() % 20);
// Clip.
mc_avg_block[j] = (temp < 0) ? 0 : ((temp > 255) ? 255 : temp);
}
// Test denosiser on Y component.
ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_c(
mc_avg_block, stride, avg_block_c, stride, sig_block_c, stride,
motion_magnitude_ran, increase_denoising_));
ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_sse2(
mc_avg_block, stride, avg_block_sse2, stride, sig_block_sse2, stride,
motion_magnitude_ran, increase_denoising_));
// Check bitexactness.
for (int h = 0; h < 16; ++h) {
for (int w = 0; w < 16; ++w) {
ASSERT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]);
}
}
// Test denoiser on UV component.
ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_c(
mc_avg_block, stride, avg_block_c, stride, sig_block_c, stride,
motion_magnitude_ran, increase_denoising_));
ASM_REGISTER_STATE_CHECK(vp8_denoiser_filter_uv_sse2(
mc_avg_block, stride, avg_block_sse2, stride, sig_block_sse2, stride,
motion_magnitude_ran, increase_denoising_));
// Check bitexactness.
for (int h = 0; h < 16; ++h) {
for (int w = 0; w < 16; ++w) {
ASSERT_EQ(avg_block_c[h * stride + w], avg_block_sse2[h * stride + w]);
}
}
}
}
// Test for all block size.
INSTANTIATE_TEST_SUITE_P(SSE2, VP8DenoiserTest, ::testing::Values(0, 1));
} // namespace
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