/*
* Copyright ( c ) 2019 , 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 <algorithm>
#include <ostream>
#include "gtest/gtest.h"
#include "config/aom_dsp_rtcd.h"
#include "test/acm_random.h"
#include "test/register_state_check.h"
#include "test/util.h"
namespace {
using libaom_test::ACMRandom;
using HadamardFunc = void (*)(const int16_t *a, ptrdiff_t a_stride,
tran_low_t *b);
// Low precision version of Hadamard Transform
using HadamardLPFunc = void (*)(const int16_t *a, ptrdiff_t a_stride,
int16_t *b);
// Low precision version of Hadamard Transform 8x8 - Dual
using HadamardLP8x8DualFunc = void (*)(const int16_t *a, ptrdiff_t a_stride,
int16_t *b);
template <typename OutputType>
void Hadamard4x4(const OutputType *a, OutputType *out) {
OutputType b[8 ];
for (int i = 0 ; i < 4 ; i += 2 ) {
b[i + 0 ] = (a[i * 4 ] + a[(i + 1 ) * 4 ]) >> 1 ;
b[i + 1 ] = (a[i * 4 ] - a[(i + 1 ) * 4 ]) >> 1 ;
}
out[0 ] = b[0 ] + b[2 ];
out[1 ] = b[1 ] + b[3 ];
out[2 ] = b[0 ] - b[2 ];
out[3 ] = b[1 ] - b[3 ];
}
template <typename OutputType>
void ReferenceHadamard4x4(const int16_t *a, int a_stride, OutputType *b) {
OutputType input[16 ];
OutputType buf[16 ];
for (int i = 0 ; i < 4 ; ++i) {
for (int j = 0 ; j < 4 ; ++j) {
input[i * 4 + j] = static_cast <OutputType>(a[i * a_stride + j]);
}
}
for (int i = 0 ; i < 4 ; ++i) Hadamard4x4(input + i, buf + i * 4 );
for (int i = 0 ; i < 4 ; ++i) Hadamard4x4(buf + i, b + i * 4 );
// Extra transpose to match C and SSE2 behavior(i.e., aom_hadamard_4x4).
for (int i = 0 ; i < 4 ; i++) {
for (int j = i + 1 ; j < 4 ; j++) {
OutputType temp = b[j * 4 + i];
b[j * 4 + i] = b[i * 4 + j];
b[i * 4 + j] = temp;
}
}
}
template <typename OutputType>
void HadamardLoop(const OutputType *a, OutputType *out) {
OutputType b[8 ];
for (int i = 0 ; i < 8 ; i += 2 ) {
b[i + 0 ] = a[i * 8 ] + a[(i + 1 ) * 8 ];
b[i + 1 ] = a[i * 8 ] - a[(i + 1 ) * 8 ];
}
OutputType c[8 ];
for (int i = 0 ; i < 8 ; i += 4 ) {
c[i + 0 ] = b[i + 0 ] + b[i + 2 ];
c[i + 1 ] = b[i + 1 ] + b[i + 3 ];
c[i + 2 ] = b[i + 0 ] - b[i + 2 ];
c[i + 3 ] = b[i + 1 ] - b[i + 3 ];
}
out[0 ] = c[0 ] + c[4 ];
out[7 ] = c[1 ] + c[5 ];
out[3 ] = c[2 ] + c[6 ];
out[4 ] = c[3 ] + c[7 ];
out[2 ] = c[0 ] - c[4 ];
out[6 ] = c[1 ] - c[5 ];
out[1 ] = c[2 ] - c[6 ];
out[5 ] = c[3 ] - c[7 ];
}
template <typename OutputType>
void ReferenceHadamard8x8(const int16_t *a, int a_stride, OutputType *b) {
OutputType input[64 ];
OutputType buf[64 ];
for (int i = 0 ; i < 8 ; ++i) {
for (int j = 0 ; j < 8 ; ++j) {
input[i * 8 + j] = static_cast <OutputType>(a[i * a_stride + j]);
}
}
for (int i = 0 ; i < 8 ; ++i) HadamardLoop(input + i, buf + i * 8 );
for (int i = 0 ; i < 8 ; ++i) HadamardLoop(buf + i, b + i * 8 );
// Extra transpose to match SSE2 behavior (i.e., aom_hadamard_8x8 and
// aom_hadamard_lp_8x8).
for (int i = 0 ; i < 8 ; i++) {
for (int j = i + 1 ; j < 8 ; j++) {
OutputType temp = b[j * 8 + i];
b[j * 8 + i] = b[i * 8 + j];
b[i * 8 + j] = temp;
}
}
}
template <typename OutputType>
void ReferenceHadamard8x8Dual(const int16_t *a, int a_stride, OutputType *b) {
/* The source is a 8x16 block. The destination is rearranged to 8x16.
* Input is 9 bit. */
ReferenceHadamard8x8(a, a_stride, b);
ReferenceHadamard8x8(a + 8 , a_stride, b + 64 );
}
template <typename OutputType>
void ReferenceHadamard16x16(const int16_t *a, int a_stride, OutputType *b,
bool shift) {
/* The source is a 16x16 block. The destination is rearranged to 8x32.
* Input is 9 bit. */
ReferenceHadamard8x8(a + 0 + 0 * a_stride, a_stride, b + 0 );
ReferenceHadamard8x8(a + 8 + 0 * a_stride, a_stride, b + 64 );
ReferenceHadamard8x8(a + 0 + 8 * a_stride, a_stride, b + 128 );
ReferenceHadamard8x8(a + 8 + 8 * a_stride, a_stride, b + 192 );
/* Overlay the 8x8 blocks and combine. */
for (int i = 0 ; i < 64 ; ++i) {
/* 8x8 steps the range up to 15 bits. */
const OutputType a0 = b[0 ];
const OutputType a1 = b[64 ];
const OutputType a2 = b[128 ];
const OutputType a3 = b[192 ];
/* Prevent the result from escaping int16_t. */
const OutputType b0 = (a0 + a1) >> 1 ;
const OutputType b1 = (a0 - a1) >> 1 ;
const OutputType b2 = (a2 + a3) >> 1 ;
const OutputType b3 = (a2 - a3) >> 1 ;
/* Store a 16 bit value. */
b[0 ] = b0 + b2;
b[64 ] = b1 + b3;
b[128 ] = b0 - b2;
b[192 ] = b1 - b3;
++b;
}
if (shift) {
b -= 64 ;
// Extra shift to match aom_hadamard_16x16_c and aom_hadamard_16x16_avx2.
for (int i = 0 ; i < 16 ; i++) {
for (int j = 0 ; j < 4 ; j++) {
OutputType temp = b[i * 16 + 4 + j];
b[i * 16 + 4 + j] = b[i * 16 + 8 + j];
b[i * 16 + 8 + j] = temp;
}
}
}
}
template <typename OutputType>
void ReferenceHadamard32x32(const int16_t *a, int a_stride, OutputType *b,
bool shift) {
ReferenceHadamard16x16(a + 0 + 0 * a_stride, a_stride, b + 0 , shift);
ReferenceHadamard16x16(a + 16 + 0 * a_stride, a_stride, b + 256 , shift);
ReferenceHadamard16x16(a + 0 + 16 * a_stride, a_stride, b + 512 , shift);
ReferenceHadamard16x16(a + 16 + 16 * a_stride, a_stride, b + 768 , shift);
for (int i = 0 ; i < 256 ; ++i) {
const OutputType a0 = b[0 ];
const OutputType a1 = b[256 ];
const OutputType a2 = b[512 ];
const OutputType a3 = b[768 ];
const OutputType b0 = (a0 + a1) >> 2 ;
const OutputType b1 = (a0 - a1) >> 2 ;
const OutputType b2 = (a2 + a3) >> 2 ;
const OutputType b3 = (a2 - a3) >> 2 ;
b[0 ] = b0 + b2;
b[256 ] = b1 + b3;
b[512 ] = b0 - b2;
b[768 ] = b1 - b3;
++b;
}
}
template <typename OutputType>
void ReferenceHadamard(const int16_t *a, int a_stride, OutputType *b, int bw,
int bh, bool shift) {
if (bw == 32 && bh == 32 ) {
ReferenceHadamard32x32(a, a_stride, b, shift);
} else if (bw == 16 && bh == 16 ) {
ReferenceHadamard16x16(a, a_stride, b, shift);
} else if (bw == 8 && bh == 8 ) {
ReferenceHadamard8x8(a, a_stride, b);
} else if (bw == 4 && bh == 4 ) {
ReferenceHadamard4x4(a, a_stride, b);
} else if (bw == 8 && bh == 16 ) {
ReferenceHadamard8x8Dual(a, a_stride, b);
} else {
GTEST_FAIL() << "Invalid Hadamard transform size " << bw << bh << std::endl;
}
}
template <typename HadamardFuncType>
struct FuncWithSize {
FuncWithSize(HadamardFuncType f, int bw, int bh)
: func(f), block_width(bw), block_height(bh) {}
HadamardFuncType func;
int block_width;
int block_height;
};
using HadamardFuncWithSize = FuncWithSize<HadamardFunc>;
using HadamardLPFuncWithSize = FuncWithSize<HadamardLPFunc>;
using HadamardLP8x8DualFuncWithSize = FuncWithSize<HadamardLP8x8DualFunc>;
template <typename OutputType, typename HadamardFuncType>
class HadamardTestBase
: public ::testing::TestWithParam<FuncWithSize<HadamardFuncType>> {
public :
HadamardTestBase(const FuncWithSize<HadamardFuncType> &func_param,
bool do_shift) {
h_func_ = func_param.func;
bw_ = func_param.block_width;
bh_ = func_param.block_height;
shift_ = do_shift;
}
void SetUp() override { rnd_.Reset(ACMRandom::DeterministicSeed()); }
// The Rand() function generates values in the range [-((1 << BitDepth) - 1),
// (1 << BitDepth) - 1]. This is because the input to the Hadamard transform
// is the residual pixel, which is defined as 'source pixel - predicted
// pixel'. Source pixel and predicted pixel take values in the range
// [0, (1 << BitDepth) - 1] and thus the residual pixel ranges from
// -((1 << BitDepth) - 1) to ((1 << BitDepth) - 1).
virtual int16_t Rand() = 0 ;
void CompareReferenceRandom() {
const int kMaxBlockSize = 32 * 32 ;
const int block_size = bw_ * bh_;
DECLARE_ALIGNED(16 , int16_t, a[kMaxBlockSize]);
DECLARE_ALIGNED(16 , OutputType, b[kMaxBlockSize]);
memset(a, 0 , sizeof (a));
memset(b, 0 , sizeof (b));
OutputType b_ref[kMaxBlockSize];
memset(b_ref, 0 , sizeof (b_ref));
for (int i = 0 ; i < block_size; ++i) a[i] = Rand();
ReferenceHadamard(a, bw_, b_ref, bw_, bh_, shift_);
API_REGISTER_STATE_CHECK(h_func_(a, bw_, b));
// The order of the output is not important. Sort before checking.
std::sort(b, b + block_size);
std::sort(b_ref, b_ref + block_size);
EXPECT_EQ(memcmp(b, b_ref, sizeof (b)), 0 );
}
void CompareReferenceExtreme() {
const int kMaxBlockSize = 32 * 32 ;
const int block_size = bw_ * bh_;
const int kBitDepth = 8 ;
DECLARE_ALIGNED(16 , int16_t, a[kMaxBlockSize]);
DECLARE_ALIGNED(16 , OutputType, b[kMaxBlockSize]);
memset(b, 0 , sizeof (b));
OutputType b_ref[kMaxBlockSize];
memset(b_ref, 0 , sizeof (b_ref));
for (int i = 0 ; i < 2 ; ++i) {
const int sign = (i == 0 ) ? 1 : -1 ;
for (int j = 0 ; j < block_size; ++j) a[j] = sign * ((1 << kBitDepth) - 1 );
ReferenceHadamard(a, bw_, b_ref, bw_, bh_, shift_);
API_REGISTER_STATE_CHECK(h_func_(a, bw_, b));
// The order of the output is not important. Sort before checking.
std::sort(b, b + block_size);
std::sort(b_ref, b_ref + block_size);
EXPECT_EQ(memcmp(b, b_ref, sizeof (b)), 0 );
}
}
void VaryStride() {
const int kMaxBlockSize = 32 * 32 ;
const int block_size = bw_ * bh_;
DECLARE_ALIGNED(16 , int16_t, a[kMaxBlockSize * 8 ]);
DECLARE_ALIGNED(16 , OutputType, b[kMaxBlockSize]);
memset(a, 0 , sizeof (a));
for (int i = 0 ; i < block_size * 8 ; ++i) a[i] = Rand();
OutputType b_ref[kMaxBlockSize];
for (int i = 8 ; i < 64 ; i += 8 ) {
memset(b, 0 , sizeof (b));
memset(b_ref, 0 , sizeof (b_ref));
ReferenceHadamard(a, i, b_ref, bw_, bh_, shift_);
API_REGISTER_STATE_CHECK(h_func_(a, i, b));
// The order of the output is not important. Sort before checking.
std::sort(b, b + block_size);
std::sort(b_ref, b_ref + block_size);
EXPECT_EQ(0 , memcmp(b, b_ref, sizeof (b)));
}
}
void SpeedTest(int times) {
const int kMaxBlockSize = 32 * 32 ;
DECLARE_ALIGNED(16 , int16_t, input[kMaxBlockSize]);
DECLARE_ALIGNED(16 , OutputType, output[kMaxBlockSize]);
memset(input, 1 , sizeof (input));
memset(output, 0 , sizeof (output));
aom_usec_timer timer;
aom_usec_timer_start(&timer);
for (int i = 0 ; i < times; ++i) {
h_func_(input, bw_, output);
}
aom_usec_timer_mark(&timer);
const int elapsed_time = static_cast <int >(aom_usec_timer_elapsed(&timer));
printf("Hadamard%dx%d[%12d runs]: %d us\n" , bw_, bh_, times, elapsed_time);
}
protected :
ACMRandom rnd_;
private :
HadamardFuncType h_func_;
int bw_;
int bh_;
bool shift_;
};
class HadamardLowbdTest : public HadamardTestBase<tran_low_t, HadamardFunc> {
public :
HadamardLowbdTest() : HadamardTestBase(GetParam(), /*do_shift=*/true) {}
// Use values between -255 (0xFF01) and 255 (0x00FF)
int16_t Rand() override {
int16_t src = rnd_.Rand8();
int16_t pred = rnd_.Rand8();
return src - pred;
}
};
TEST_P(HadamardLowbdTest, CompareReferenceRandom) { CompareReferenceRandom(); }
TEST_P(HadamardLowbdTest, CompareReferenceExtreme) {
CompareReferenceExtreme();
}
TEST_P(HadamardLowbdTest, VaryStride) { VaryStride(); }
TEST_P(HadamardLowbdTest, DISABLED_SpeedTest) { SpeedTest(1000000 ); }
INSTANTIATE_TEST_SUITE_P(
C, HadamardLowbdTest,
::testing::Values(HadamardFuncWithSize(&aom_hadamard_4x4_c, 4 , 4 ),
HadamardFuncWithSize(&aom_hadamard_8x8_c, 8 , 8 ),
HadamardFuncWithSize(&aom_hadamard_16x16_c, 16 , 16 ),
HadamardFuncWithSize(&aom_hadamard_32x32_c, 32 , 32 )));
#if HAVE_SSE2
INSTANTIATE_TEST_SUITE_P(
SSE2, HadamardLowbdTest,
::testing::Values(HadamardFuncWithSize(&aom_hadamard_4x4_sse2, 4 , 4 ),
HadamardFuncWithSize(&aom_hadamard_8x8_sse2, 8 , 8 ),
HadamardFuncWithSize(&aom_hadamard_16x16_sse2, 16 , 16 ),
HadamardFuncWithSize(&aom_hadamard_32x32_sse2, 32 , 32 )));
#endif // HAVE_SSE2
#if HAVE_AVX2
INSTANTIATE_TEST_SUITE_P(
AVX2, HadamardLowbdTest,
::testing::Values(HadamardFuncWithSize(&aom_hadamard_16x16_avx2, 16 , 16 ),
HadamardFuncWithSize(&aom_hadamard_32x32_avx2, 32 , 32 )));
#endif // HAVE_AVX2
// TODO(aomedia:3314): Disable NEON unit test for now, since hadamard 16x16 NEON
// need modifications to match C/AVX2 behavior.
#if HAVE_NEON
INSTANTIATE_TEST_SUITE_P(
NEON, HadamardLowbdTest,
::testing::Values(HadamardFuncWithSize(&aom_hadamard_4x4_neon, 4 , 4 ),
HadamardFuncWithSize(&aom_hadamard_8x8_neon, 8 , 8 ),
HadamardFuncWithSize(&aom_hadamard_16x16_neon, 16 , 16 ),
HadamardFuncWithSize(&aom_hadamard_32x32_neon, 32 , 32 )));
#endif // HAVE_NEON
#if CONFIG_AV1_HIGHBITDEPTH
class HadamardHighbdTest : public HadamardTestBase<tran_low_t, HadamardFunc> {
protected :
HadamardHighbdTest() : HadamardTestBase(GetParam(), /*do_shift=*/true) {}
// Use values between -4095 (0xF001) and 4095 (0x0FFF)
int16_t Rand() override {
int16_t src = rnd_.Rand12();
int16_t pred = rnd_.Rand12();
return src - pred;
}
};
TEST_P(HadamardHighbdTest, CompareReferenceRandom) { CompareReferenceRandom(); }
TEST_P(HadamardHighbdTest, VaryStride) { VaryStride(); }
TEST_P(HadamardHighbdTest, DISABLED_Speed) {
SpeedTest(10 );
SpeedTest(10000 );
SpeedTest(10000000 );
}
INSTANTIATE_TEST_SUITE_P(
C, HadamardHighbdTest,
::testing::Values(
HadamardFuncWithSize(&aom_highbd_hadamard_8x8_c, 8 , 8 ),
HadamardFuncWithSize(&aom_highbd_hadamard_16x16_c, 16 , 16 ),
HadamardFuncWithSize(&aom_highbd_hadamard_32x32_c, 32 , 32 )));
#if HAVE_AVX2
INSTANTIATE_TEST_SUITE_P(
AVX2, HadamardHighbdTest,
::testing::Values(
HadamardFuncWithSize(&aom_highbd_hadamard_8x8_avx2, 8 , 8 ),
HadamardFuncWithSize(&aom_highbd_hadamard_16x16_avx2, 16 , 16 ),
HadamardFuncWithSize(&aom_highbd_hadamard_32x32_avx2, 32 , 32 )));
#endif // HAVE_AVX2
#if HAVE_NEON
INSTANTIATE_TEST_SUITE_P(
NEON, HadamardHighbdTest,
::testing::Values(
HadamardFuncWithSize(&aom_highbd_hadamard_8x8_neon, 8 , 8 ),
HadamardFuncWithSize(&aom_highbd_hadamard_16x16_neon, 16 , 16 ),
HadamardFuncWithSize(&aom_highbd_hadamard_32x32_neon, 32 , 32 )));
#endif // HAVE_NEON
#endif // CONFIG_AV1_HIGHBITDEPTH
// Tests for low precision
class HadamardLowbdLPTest : public HadamardTestBase<int16_t, HadamardLPFunc> {
public :
HadamardLowbdLPTest() : HadamardTestBase(GetParam(), /*do_shift=*/false) {}
// Use values between -255 (0xFF01) and 255 (0x00FF)
int16_t Rand() override {
int16_t src = rnd_.Rand8();
int16_t pred = rnd_.Rand8();
return src - pred;
}
};
TEST_P(HadamardLowbdLPTest, CompareReferenceRandom) {
CompareReferenceRandom();
}
TEST_P(HadamardLowbdLPTest, VaryStride) { VaryStride(); }
TEST_P(HadamardLowbdLPTest, DISABLED_SpeedTest) { SpeedTest(1000000 ); }
INSTANTIATE_TEST_SUITE_P(
C, HadamardLowbdLPTest,
::testing::Values(HadamardLPFuncWithSize(&aom_hadamard_lp_8x8_c, 8 , 8 ),
HadamardLPFuncWithSize(&aom_hadamard_lp_16x16_c, 16 ,
16 )));
#if HAVE_SSE2
INSTANTIATE_TEST_SUITE_P(
SSE2, HadamardLowbdLPTest,
::testing::Values(HadamardLPFuncWithSize(&aom_hadamard_lp_8x8_sse2, 8 , 8 ),
HadamardLPFuncWithSize(&aom_hadamard_lp_16x16_sse2, 16 ,
16 )));
#endif // HAVE_SSE2
#if HAVE_AVX2
INSTANTIATE_TEST_SUITE_P(AVX2, HadamardLowbdLPTest,
::testing::Values(HadamardLPFuncWithSize(
&aom_hadamard_lp_16x16_avx2, 16 , 16 )));
#endif // HAVE_AVX2
#if HAVE_NEON
INSTANTIATE_TEST_SUITE_P(
NEON, HadamardLowbdLPTest,
::testing::Values(HadamardLPFuncWithSize(&aom_hadamard_lp_8x8_neon, 8 , 8 ),
HadamardLPFuncWithSize(&aom_hadamard_lp_16x16_neon, 16 ,
16 )));
#endif // HAVE_NEON
// Tests for 8x8 dual low precision
class HadamardLowbdLP8x8DualTest
: public HadamardTestBase<int16_t, HadamardLP8x8DualFunc> {
public :
HadamardLowbdLP8x8DualTest()
: HadamardTestBase(GetParam(), /*do_shift=*/false) {}
// Use values between -255 (0xFF01) and 255 (0x00FF)
int16_t Rand() override {
int16_t src = rnd_.Rand8();
int16_t pred = rnd_.Rand8();
return src - pred;
}
};
TEST_P(HadamardLowbdLP8x8DualTest, CompareReferenceRandom) {
CompareReferenceRandom();
}
TEST_P(HadamardLowbdLP8x8DualTest, VaryStride) { VaryStride(); }
TEST_P(HadamardLowbdLP8x8DualTest, DISABLED_SpeedTest) { SpeedTest(1000000 ); }
INSTANTIATE_TEST_SUITE_P(C, HadamardLowbdLP8x8DualTest,
::testing::Values(HadamardLP8x8DualFuncWithSize(
&aom_hadamard_lp_8x8_dual_c, 8 , 16 )));
#if HAVE_SSE2
INSTANTIATE_TEST_SUITE_P(SSE2, HadamardLowbdLP8x8DualTest,
::testing::Values(HadamardLP8x8DualFuncWithSize(
&aom_hadamard_lp_8x8_dual_sse2, 8 , 16 )));
#endif // HAVE_SSE2
#if HAVE_AVX2
INSTANTIATE_TEST_SUITE_P(AVX2, HadamardLowbdLP8x8DualTest,
::testing::Values(HadamardLP8x8DualFuncWithSize(
&aom_hadamard_lp_8x8_dual_avx2, 8 , 16 )));
#endif // HAVE_AVX2
#if HAVE_NEON
INSTANTIATE_TEST_SUITE_P(NEON, HadamardLowbdLP8x8DualTest,
::testing::Values(HadamardLP8x8DualFuncWithSize(
&aom_hadamard_lp_8x8_dual_neon, 8 , 16 )));
#endif // HAVE_NEON
} // namespace
Messung V0.5 in Prozent C=92 H=77 G=84
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-10-11)
¤
*© Formatika GbR, Deutschland