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/*
* Copyright (c) 2018, 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 <cstdlib>
#include <new>
#include <tuple>
#include "config/aom_config.h"
#include "config/av1_rtcd.h"
#include "aom_ports/aom_timer.h"
#include "av1/encoder/hash.h"
#include "gtest/gtest.h"
#include "test/acm_random.h"
#include "test/util.h"
namespace {
typedef uint32_t (*get_crc32c_value_func)(void *calculator, const uint8_t *p,
size_t length);
typedef std::tuple<get_crc32c_value_func, int> HashParam;
class AV1Crc32cHashTest : public ::testing::TestWithParam<HashParam> {
public:
~AV1Crc32cHashTest() override;
void SetUp() override;
void TearDown() override;
protected:
void RunCheckOutput(get_crc32c_value_func test_impl);
void RunSpeedTest(get_crc32c_value_func test_impl);
void RunZeroTest(get_crc32c_value_func test_impl);
libaom_test::ACMRandom rnd_;
CRC32C calc_;
uint8_t *buffer_;
int bsize_;
size_t length_;
};
AV1Crc32cHashTest::~AV1Crc32cHashTest() = default;
void AV1Crc32cHashTest::SetUp() {
rnd_.Reset(libaom_test::ACMRandom::DeterministicSeed());
av1_crc32c_calculator_init(&calc_);
bsize_ = GET_PARAM(1);
length_ = bsize_ * bsize_ * sizeof(uint16_t);
buffer_ = new uint8_t[length_];
ASSERT_NE(buffer_, nullptr);
for (size_t i = 0; i < length_; ++i) {
buffer_[i] = rnd_.Rand8();
}
}
void AV1Crc32cHashTest::TearDown() { delete[] buffer_; }
void AV1Crc32cHashTest::RunCheckOutput(get_crc32c_value_func test_impl) {
get_crc32c_value_func ref_impl = av1_get_crc32c_value_c;
// for the same buffer crc should be the same
uint32_t crc0 = test_impl(&calc_, buffer_, length_);
uint32_t crc1 = test_impl(&calc_, buffer_, length_);
uint32_t crc2 = ref_impl(&calc_, buffer_, length_);
ASSERT_EQ(crc0, crc1);
ASSERT_EQ(crc0, crc2); // should equal to software version
// modify buffer
buffer_[0] += 1;
uint32_t crc3 = test_impl(&calc_, buffer_, length_);
uint32_t crc4 = ref_impl(&calc_, buffer_, length_);
ASSERT_NE(crc0, crc3); // crc shoud not equal to previous one
ASSERT_EQ(crc3, crc4);
}
void AV1Crc32cHashTest::RunSpeedTest(get_crc32c_value_func test_impl) {
get_crc32c_value_func impls[] = { av1_get_crc32c_value_c, test_impl };
const int repeat = 10000000 / (bsize_ + bsize_);
aom_usec_timer timer;
double time[2];
for (int i = 0; i < 2; ++i) {
aom_usec_timer_start(&timer);
for (int j = 0; j < repeat; ++j) {
impls[i](&calc_, buffer_, length_);
}
aom_usec_timer_mark(&timer);
time[i] = static_cast<double>(aom_usec_timer_elapsed(&timer));
}
printf("hash %3dx%-3d:%7.2f/%7.2fus", bsize_, bsize_, time[0], time[1]);
printf("(%3.2f)\n", time[0] / time[1]);
}
void AV1Crc32cHashTest::RunZeroTest(get_crc32c_value_func test_impl) {
uint8_t buffer0[1024] = { 0 };
// for buffer with different size the crc should not be the same
const uint32_t crc0 = test_impl(&calc_, buffer0, 32);
const uint32_t crc1 = test_impl(&calc_, buffer0, 128);
const uint32_t crc2 = test_impl(&calc_, buffer0, 1024);
ASSERT_NE(crc0, crc1);
ASSERT_NE(crc0, crc2);
ASSERT_NE(crc1, crc2);
}
TEST_P(AV1Crc32cHashTest, CheckOutput) { RunCheckOutput(GET_PARAM(0)); }
TEST_P(AV1Crc32cHashTest, CheckZero) { RunZeroTest(GET_PARAM(0)); }
TEST_P(AV1Crc32cHashTest, DISABLED_Speed) { RunSpeedTest(GET_PARAM(0)); }
const int kValidBlockSize[] = { 64, 32, 8, 4 };
INSTANTIATE_TEST_SUITE_P(
C, AV1Crc32cHashTest,
::testing::Combine(::testing::Values(&av1_get_crc32c_value_c),
::testing::ValuesIn(kValidBlockSize)));
#if HAVE_SSE4_2
INSTANTIATE_TEST_SUITE_P(
SSE4_2, AV1Crc32cHashTest,
::testing::Combine(::testing::Values(&av1_get_crc32c_value_sse4_2),
::testing::ValuesIn(kValidBlockSize)));
#endif
#if HAVE_ARM_CRC32
INSTANTIATE_TEST_SUITE_P(
ARM_CRC32, AV1Crc32cHashTest,
::testing::Combine(::testing::Values(&av1_get_crc32c_value_arm_crc32),
::testing::ValuesIn(kValidBlockSize)));
#endif
} // namespace
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