ref: d55682c2aadbca664727fde886d42d39f7cbb5cd
dir: libvpx/test/vp9_block_error_test.cc
/*
* 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 <cmath>
#include <cstdlib>
#include <string>
#include <tuple>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "./vpx_config.h"
#include "./vp9_rtcd.h"
#include "test/acm_random.h"
#include "test/clear_system_state.h"
#include "test/register_state_check.h"
#include "test/util.h"
#include "vp9/common/vp9_entropy.h"
#include "vpx/vpx_codec.h"
#include "vpx/vpx_integer.h"
#include "vpx_dsp/vpx_dsp_common.h"
using libvpx_test::ACMRandom;
namespace {
const int kNumIterations = 1000;
typedef int64_t (*HBDBlockErrorFunc)(const tran_low_t *coeff,
const tran_low_t *dqcoeff,
intptr_t block_size, int64_t *ssz,
int bps);
typedef std::tuple<HBDBlockErrorFunc, HBDBlockErrorFunc, vpx_bit_depth_t>
BlockErrorParam;
typedef int64_t (*BlockErrorFunc)(const tran_low_t *coeff,
const tran_low_t *dqcoeff,
intptr_t block_size, int64_t *ssz);
template <BlockErrorFunc fn>
int64_t BlockError8BitWrapper(const tran_low_t *coeff,
const tran_low_t *dqcoeff, intptr_t block_size,
int64_t *ssz, int bps) {
EXPECT_EQ(bps, 8);
return fn(coeff, dqcoeff, block_size, ssz);
}
class BlockErrorTest : public ::testing::TestWithParam<BlockErrorParam> {
public:
virtual ~BlockErrorTest() {}
virtual void SetUp() {
error_block_op_ = GET_PARAM(0);
ref_error_block_op_ = GET_PARAM(1);
bit_depth_ = GET_PARAM(2);
}
virtual void TearDown() { libvpx_test::ClearSystemState(); }
protected:
vpx_bit_depth_t bit_depth_;
HBDBlockErrorFunc error_block_op_;
HBDBlockErrorFunc ref_error_block_op_;
};
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(BlockErrorTest);
TEST_P(BlockErrorTest, OperationCheck) {
ACMRandom rnd(ACMRandom::DeterministicSeed());
DECLARE_ALIGNED(16, tran_low_t, coeff[4096]);
DECLARE_ALIGNED(16, tran_low_t, dqcoeff[4096]);
int err_count_total = 0;
int first_failure = -1;
intptr_t block_size;
int64_t ssz;
int64_t ret;
int64_t ref_ssz;
int64_t ref_ret;
const int msb = bit_depth_ + 8 - 1;
for (int i = 0; i < kNumIterations; ++i) {
int err_count = 0;
block_size = 16 << (i % 9); // All block sizes from 4x4, 8x4 ..64x64
for (int j = 0; j < block_size; j++) {
// coeff and dqcoeff will always have at least the same sign, and this
// can be used for optimization, so generate test input precisely.
if (rnd(2)) {
// Positive number
coeff[j] = rnd(1 << msb);
dqcoeff[j] = rnd(1 << msb);
} else {
// Negative number
coeff[j] = -rnd(1 << msb);
dqcoeff[j] = -rnd(1 << msb);
}
}
ref_ret =
ref_error_block_op_(coeff, dqcoeff, block_size, &ref_ssz, bit_depth_);
ASM_REGISTER_STATE_CHECK(
ret = error_block_op_(coeff, dqcoeff, block_size, &ssz, bit_depth_));
err_count += (ref_ret != ret) | (ref_ssz != ssz);
if (err_count && !err_count_total) {
first_failure = i;
}
err_count_total += err_count;
}
EXPECT_EQ(0, err_count_total)
<< "Error: Error Block Test, C output doesn't match optimized output. "
<< "First failed at test case " << first_failure;
}
TEST_P(BlockErrorTest, ExtremeValues) {
ACMRandom rnd(ACMRandom::DeterministicSeed());
DECLARE_ALIGNED(16, tran_low_t, coeff[4096]);
DECLARE_ALIGNED(16, tran_low_t, dqcoeff[4096]);
int err_count_total = 0;
int first_failure = -1;
intptr_t block_size;
int64_t ssz;
int64_t ret;
int64_t ref_ssz;
int64_t ref_ret;
const int msb = bit_depth_ + 8 - 1;
int max_val = ((1 << msb) - 1);
for (int i = 0; i < kNumIterations; ++i) {
int err_count = 0;
int k = (i / 9) % 9;
// Change the maximum coeff value, to test different bit boundaries
if (k == 8 && (i % 9) == 0) {
max_val >>= 1;
}
block_size = 16 << (i % 9); // All block sizes from 4x4, 8x4 ..64x64
for (int j = 0; j < block_size; j++) {
if (k < 4) {
// Test at positive maximum values
coeff[j] = k % 2 ? max_val : 0;
dqcoeff[j] = (k >> 1) % 2 ? max_val : 0;
} else if (k < 8) {
// Test at negative maximum values
coeff[j] = k % 2 ? -max_val : 0;
dqcoeff[j] = (k >> 1) % 2 ? -max_val : 0;
} else {
if (rnd(2)) {
// Positive number
coeff[j] = rnd(1 << 14);
dqcoeff[j] = rnd(1 << 14);
} else {
// Negative number
coeff[j] = -rnd(1 << 14);
dqcoeff[j] = -rnd(1 << 14);
}
}
}
ref_ret =
ref_error_block_op_(coeff, dqcoeff, block_size, &ref_ssz, bit_depth_);
ASM_REGISTER_STATE_CHECK(
ret = error_block_op_(coeff, dqcoeff, block_size, &ssz, bit_depth_));
err_count += (ref_ret != ret) | (ref_ssz != ssz);
if (err_count && !err_count_total) {
first_failure = i;
}
err_count_total += err_count;
}
EXPECT_EQ(0, err_count_total)
<< "Error: Error Block Test, C output doesn't match optimized output. "
<< "First failed at test case " << first_failure;
}
using std::make_tuple;
#if HAVE_SSE2
const BlockErrorParam sse2_block_error_tests[] = {
#if CONFIG_VP9_HIGHBITDEPTH
make_tuple(&vp9_highbd_block_error_sse2, &vp9_highbd_block_error_c,
VPX_BITS_10),
make_tuple(&vp9_highbd_block_error_sse2, &vp9_highbd_block_error_c,
VPX_BITS_12),
make_tuple(&vp9_highbd_block_error_sse2, &vp9_highbd_block_error_c,
VPX_BITS_8),
#endif // CONFIG_VP9_HIGHBITDEPTH
make_tuple(&BlockError8BitWrapper<vp9_block_error_sse2>,
&BlockError8BitWrapper<vp9_block_error_c>, VPX_BITS_8)
};
INSTANTIATE_TEST_SUITE_P(SSE2, BlockErrorTest,
::testing::ValuesIn(sse2_block_error_tests));
#endif // HAVE_SSE2
#if HAVE_AVX2
INSTANTIATE_TEST_SUITE_P(
AVX2, BlockErrorTest,
::testing::Values(make_tuple(&BlockError8BitWrapper<vp9_block_error_avx2>,
&BlockError8BitWrapper<vp9_block_error_c>,
VPX_BITS_8)));
#endif // HAVE_AVX2
} // namespace