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/*
* Copyright (c) 2021, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <tuple>
#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
#include "config/aom_config.h"
#include "config/aom_dsp_rtcd.h"
#include "config/av1_rtcd.h"
#include "aom/aom_codec.h"
#include "aom_ports/aom_timer.h"
#include "av1/encoder/encoder.h"
#include "av1/common/scan.h"
#include "test/acm_random.h"
#include "test/register_state_check.h"
#include "test/util.h"
namespace {
using libaom_test::ACMRandom;
#define QUAN_LP_PARAM_LIST \
const int16_t *coeff_ptr, intptr_t n_coeffs, const int16_t *round_ptr, \
const int16_t *quant_ptr, int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr, \
const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, \
const int16_t *iscan
typedef void (*QuantizeFunc)(QUAN_LP_PARAM_LIST);
using std::tuple;
typedef tuple<QuantizeFunc, QuantizeFunc, TX_SIZE, aom_bit_depth_t>
QuantizeParam;
typedef struct {
QUANTS quant;
Dequants dequant;
} QuanTable;
const int kTestNum = 1000;
template <typename CoeffType>
class QuantizeTestBase : public ::testing::TestWithParam<QuantizeParam> {
protected:
QuantizeTestBase()
: quant_ref_(GET_PARAM(0)), quant_(GET_PARAM(1)), tx_size_(GET_PARAM(2)),
bd_(GET_PARAM(3)) {}
virtual ~QuantizeTestBase() {}
virtual void SetUp() {
qtab_ = reinterpret_cast<QuanTable *>(aom_memalign(32, sizeof(*qtab_)));
const int n_coeffs = coeff_num();
coeff_ = reinterpret_cast<CoeffType *>(
aom_memalign(32, 6 * n_coeffs * sizeof(CoeffType)));
InitQuantizer();
}
virtual void TearDown() {
aom_free(qtab_);
qtab_ = NULL;
aom_free(coeff_);
coeff_ = NULL;
}
void InitQuantizer() {
av1_build_quantizer(bd_, 0, 0, 0, 0, 0, &qtab_->quant, &qtab_->dequant);
}
virtual void RunQuantizeFunc(const CoeffType *coeff_ptr, intptr_t n_coeffs,
const int16_t *round_ptr,
const int16_t *quant_ptr, CoeffType *qcoeff_ptr,
CoeffType *qcoeff_ref_ptr,
CoeffType *dqcoeff_ptr,
CoeffType *dqcoeff_ref_ptr,
const int16_t *dequant_ptr,
uint16_t *eob_ref_ptr, uint16_t *eob_ptr,
const int16_t *scan, const int16_t *iscan) = 0;
void QuantizeRun(bool is_loop, int q = 0, int test_num = 1) {
CoeffType *coeff_ptr = coeff_;
const intptr_t n_coeffs = coeff_num();
CoeffType *qcoeff_ref = coeff_ptr + n_coeffs;
CoeffType *dqcoeff_ref = qcoeff_ref + n_coeffs;
CoeffType *qcoeff = dqcoeff_ref + n_coeffs;
CoeffType *dqcoeff = qcoeff + n_coeffs;
uint16_t *eob = (uint16_t *)(dqcoeff + n_coeffs);
// Testing uses 2-D DCT scan order table
const SCAN_ORDER *const sc = get_default_scan(tx_size_, DCT_DCT);
// Testing uses luminance quantization table
const int16_t *round = 0;
const int16_t *quant = 0;
round = qtab_->quant.y_round_fp[q];
quant = qtab_->quant.y_quant_fp[q];
const int16_t *dequant = qtab_->dequant.y_dequant_QTX[q];
for (int i = 0; i < test_num; ++i) {
if (is_loop) FillCoeffRandom();
memset(qcoeff_ref, 0, 5 * n_coeffs * sizeof(*qcoeff_ref));
RunQuantizeFunc(coeff_ptr, n_coeffs, round, quant, qcoeff, qcoeff_ref,
dqcoeff, dqcoeff_ref, dequant, &eob[0], &eob[1], sc->scan,
sc->iscan);
quant_ref_(coeff_ptr, n_coeffs, round, quant, qcoeff_ref, dqcoeff_ref,
dequant, &eob[0], sc->scan, sc->iscan);
API_REGISTER_STATE_CHECK(quant_(coeff_ptr, n_coeffs, round, quant, qcoeff,
dqcoeff, dequant, &eob[1], sc->scan,
sc->iscan));
for (int j = 0; j < n_coeffs; ++j) {
ASSERT_EQ(qcoeff_ref[j], qcoeff[j])
<< "Q mismatch on test: " << i << " at position: " << j
<< " Q: " << q << " coeff: " << coeff_ptr[j];
}
for (int j = 0; j < n_coeffs; ++j) {
ASSERT_EQ(dqcoeff_ref[j], dqcoeff[j])
<< "Dq mismatch on test: " << i << " at position: " << j
<< " Q: " << q << " coeff: " << coeff_ptr[j];
}
ASSERT_EQ(eob[0], eob[1])
<< "eobs mismatch on test: " << i << " Q: " << q;
}
}
void CompareResults(const CoeffType *buf_ref, const CoeffType *buf, int size,
const char *text, int q, int number) {
int i;
for (i = 0; i < size; ++i) {
ASSERT_EQ(buf_ref[i], buf[i]) << text << " mismatch on test: " << number
<< " at position: " << i << " Q: " << q;
}
}
int coeff_num() const { return av1_get_max_eob(tx_size_); }
void FillCoeff(CoeffType c) {
const int n_coeffs = coeff_num();
for (int i = 0; i < n_coeffs; ++i) {
coeff_[i] = c;
}
}
void FillCoeffRandom() {
const int n_coeffs = coeff_num();
FillCoeffZero();
int num = rnd_.Rand16() % n_coeffs;
for (int i = 0; i < num; ++i) {
coeff_[i] = GetRandomCoeff();
}
}
void FillCoeffRandomRows(int num) {
FillCoeffZero();
for (int i = 0; i < num; ++i) {
coeff_[i] = GetRandomCoeff();
}
}
void FillCoeffZero() { FillCoeff(0); }
void FillCoeffConstant() {
CoeffType c = GetRandomCoeff();
FillCoeff(c);
}
void FillDcOnly() {
FillCoeffZero();
coeff_[0] = GetRandomCoeff();
}
void FillDcLargeNegative() {
FillCoeffZero();
// Generate a qcoeff which contains 512/-512 (0x0100/0xFE00) to catch issues
// like BUG=883 where the constant being compared was incorrectly
// initialized.
coeff_[0] = -8191;
}
CoeffType GetRandomCoeff() {
CoeffType coeff;
if (bd_ == AOM_BITS_8) {
coeff =
clamp(static_cast<int16_t>(rnd_.Rand16()), INT16_MIN + 1, INT16_MAX);
} else {
CoeffType min = -(1 << (7 + bd_));
CoeffType max = -min - 1;
coeff = clamp(static_cast<CoeffType>(rnd_.Rand31()), min, max);
}
return coeff;
}
ACMRandom rnd_;
QuanTable *qtab_;
CoeffType *coeff_;
QuantizeFunc quant_ref_;
QuantizeFunc quant_;
TX_SIZE tx_size_;
aom_bit_depth_t bd_;
};
class FullPrecisionQuantizeLpTest : public QuantizeTestBase<int16_t> {
void RunQuantizeFunc(const int16_t *coeff_ptr, intptr_t n_coeffs,
const int16_t *round_ptr, const int16_t *quant_ptr,
int16_t *qcoeff_ptr, int16_t *qcoeff_ref_ptr,
int16_t *dqcoeff_ptr, int16_t *dqcoeff_ref_ptr,
const int16_t *dequant_ptr, uint16_t *eob_ref_ptr,
uint16_t *eob_ptr, const int16_t *scan,
const int16_t *iscan) override {
quant_ref_(coeff_ptr, n_coeffs, round_ptr, quant_ptr, qcoeff_ref_ptr,
dqcoeff_ref_ptr, dequant_ptr, eob_ref_ptr, scan, iscan);
API_REGISTER_STATE_CHECK(quant_(coeff_ptr, n_coeffs, round_ptr, quant_ptr,
qcoeff_ptr, dqcoeff_ptr, dequant_ptr,
eob_ptr, scan, iscan));
}
};
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(FullPrecisionQuantizeLpTest);
TEST_P(FullPrecisionQuantizeLpTest, ZeroInput) {
FillCoeffZero();
QuantizeRun(false);
}
TEST_P(FullPrecisionQuantizeLpTest, LargeNegativeInput) {
FillDcLargeNegative();
QuantizeRun(false, 0, 1);
}
TEST_P(FullPrecisionQuantizeLpTest, DcOnlyInput) {
FillDcOnly();
QuantizeRun(false, 0, 1);
}
TEST_P(FullPrecisionQuantizeLpTest, RandomInput) {
QuantizeRun(true, 0, kTestNum);
}
TEST_P(FullPrecisionQuantizeLpTest, MultipleQ) {
for (int q = 0; q < QINDEX_RANGE; ++q) {
QuantizeRun(true, q, kTestNum);
}
}
// Force the coeff to be half the value of the dequant. This exposes a
// mismatch found in av1_quantize_fp_sse2().
TEST_P(FullPrecisionQuantizeLpTest, CoeffHalfDequant) {
FillCoeff(16);
QuantizeRun(false, 25, 1);
}
TEST_P(FullPrecisionQuantizeLpTest, DISABLED_Speed) {
int16_t *coeff_ptr = coeff_;
const intptr_t n_coeffs = coeff_num();
int16_t *qcoeff_ref = coeff_ptr + n_coeffs;
int16_t *dqcoeff_ref = qcoeff_ref + n_coeffs;
int16_t *qcoeff = dqcoeff_ref + n_coeffs;
int16_t *dqcoeff = qcoeff + n_coeffs;
uint16_t *eob = (uint16_t *)(dqcoeff + n_coeffs);
// Testing uses 2-D DCT scan order table
const SCAN_ORDER *const sc = get_default_scan(tx_size_, DCT_DCT);
// Testing uses luminance quantization table
const int q = 22;
const int16_t *round_fp = qtab_->quant.y_round_fp[q];
const int16_t *quant_fp = qtab_->quant.y_quant_fp[q];
const int16_t *dequant = qtab_->dequant.y_dequant_QTX[q];
const int kNumTests = 5000000;
aom_usec_timer timer, simd_timer;
int rows = tx_size_high[tx_size_];
int cols = tx_size_wide[tx_size_];
rows = AOMMIN(32, rows);
cols = AOMMIN(32, cols);
for (int cnt = 0; cnt <= rows; cnt++) {
FillCoeffRandomRows(cnt * cols);
aom_usec_timer_start(&timer);
for (int n = 0; n < kNumTests; ++n) {
quant_ref_(coeff_ptr, n_coeffs, round_fp, quant_fp, qcoeff, dqcoeff,
dequant, eob, sc->scan, sc->iscan);
}
aom_usec_timer_mark(&timer);
aom_usec_timer_start(&simd_timer);
for (int n = 0; n < kNumTests; ++n) {
quant_(coeff_ptr, n_coeffs, round_fp, quant_fp, qcoeff, dqcoeff, dequant,
eob, sc->scan, sc->iscan);
}
aom_usec_timer_mark(&simd_timer);
const int elapsed_time = static_cast<int>(aom_usec_timer_elapsed(&timer));
const int simd_elapsed_time =
static_cast<int>(aom_usec_timer_elapsed(&simd_timer));
printf("c_time = %d \t simd_time = %d \t Gain = %f \n", elapsed_time,
simd_elapsed_time, ((float)elapsed_time / simd_elapsed_time));
}
}
using std::make_tuple;
#if HAVE_AVX2
const QuantizeParam kQParamArrayAVX2[] = {
// av1_quantize_lp is only called in nonrd_pickmode.c, and is used for 16X16,
// 8X8, and 4X4.
make_tuple(&av1_quantize_lp_c, &av1_quantize_lp_avx2,
static_cast<TX_SIZE>(TX_16X16), AOM_BITS_8),
make_tuple(&av1_quantize_lp_c, &av1_quantize_lp_avx2,
static_cast<TX_SIZE>(TX_8X8), AOM_BITS_8),
make_tuple(&av1_quantize_lp_c, &av1_quantize_lp_avx2,
static_cast<TX_SIZE>(TX_4X4), AOM_BITS_8)
};
INSTANTIATE_TEST_SUITE_P(AVX2, FullPrecisionQuantizeLpTest,
::testing::ValuesIn(kQParamArrayAVX2));
#endif
#if HAVE_NEON
const QuantizeParam kQParamArrayNEON[] = {
make_tuple(&av1_quantize_lp_c, &av1_quantize_lp_neon,
static_cast<TX_SIZE>(TX_16X16), AOM_BITS_8),
make_tuple(&av1_quantize_lp_c, &av1_quantize_lp_neon,
static_cast<TX_SIZE>(TX_8X8), AOM_BITS_8),
make_tuple(&av1_quantize_lp_c, &av1_quantize_lp_neon,
static_cast<TX_SIZE>(TX_4X4), AOM_BITS_8)
};
INSTANTIATE_TEST_SUITE_P(NEON, FullPrecisionQuantizeLpTest,
::testing::ValuesIn(kQParamArrayNEON));
#endif
} // namespace