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/*
* Copyright (c) 2017 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 "third_party/googletest/src/include/gtest/gtest.h"
#include "./vpx_dsp_rtcd.h"
#include "test/acm_random.h"
#include "test/buffer.h"
#include "test/register_state_check.h"
#include "vpx_config.h"
#include "vpx_ports/vpx_timer.h"
namespace {
using ::libvpx_test::ACMRandom;
using ::libvpx_test::Buffer;
template <typename Pixel>
Pixel avg_with_rounding(Pixel a, Pixel b) {
return (a + b + 1) >> 1;
}
template <typename Pixel>
void reference_pred(const Buffer<Pixel> &pred, const Buffer<Pixel> &ref,
int width, int height, Buffer<Pixel> *avg) {
ASSERT_NE(avg->TopLeftPixel(), nullptr);
ASSERT_NE(pred.TopLeftPixel(), nullptr);
ASSERT_NE(ref.TopLeftPixel(), nullptr);
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
avg->TopLeftPixel()[y * avg->stride() + x] =
avg_with_rounding<Pixel>(pred.TopLeftPixel()[y * pred.stride() + x],
ref.TopLeftPixel()[y * ref.stride() + x]);
}
}
}
using AvgPredFunc = void (*)(uint8_t *a, const uint8_t *b, int w, int h,
const uint8_t *c, int c_stride);
template <int bitdepth, typename Pixel>
class AvgPredTest : public ::testing::TestWithParam<AvgPredFunc> {
public:
void SetUp() override {
avg_pred_func_ = GetParam();
rnd_.Reset(ACMRandom::DeterministicSeed());
}
void TestSizeCombinations();
void TestCompareReferenceRandom();
void TestSpeed();
protected:
AvgPredFunc avg_pred_func_;
ACMRandom rnd_;
};
template <int bitdepth, typename Pixel>
void AvgPredTest<bitdepth, Pixel>::TestSizeCombinations() {
// This is called as part of the sub pixel variance. As such it must be one of
// the variance block sizes.
for (int width_pow = 2; width_pow <= 6; ++width_pow) {
for (int height_pow = width_pow - 1; height_pow <= width_pow + 1;
++height_pow) {
// Don't test 4x2 or 64x128
if (height_pow == 1 || height_pow == 7) continue;
// The sse2 special-cases when ref width == stride, so make sure to test
// it.
for (int ref_padding = 0; ref_padding < 2; ref_padding++) {
const int width = 1 << width_pow;
const int height = 1 << height_pow;
// Only the reference buffer may have a stride not equal to width.
Buffer<Pixel> ref = Buffer<Pixel>(width, height, ref_padding ? 8 : 0);
ASSERT_TRUE(ref.Init());
Buffer<Pixel> pred = Buffer<Pixel>(width, height, 0, 32);
ASSERT_TRUE(pred.Init());
Buffer<Pixel> avg_ref = Buffer<Pixel>(width, height, 0, 32);
ASSERT_TRUE(avg_ref.Init());
Buffer<Pixel> avg_chk = Buffer<Pixel>(width, height, 0, 32);
ASSERT_TRUE(avg_chk.Init());
const int bitdepth_mask = (1 << bitdepth) - 1;
for (int h = 0; h < height; ++h) {
for (int w = 0; w < width; ++w) {
ref.TopLeftPixel()[w + h * width] = rnd_.Rand16() & bitdepth_mask;
}
}
for (int h = 0; h < height; ++h) {
for (int w = 0; w < width; ++w) {
pred.TopLeftPixel()[w + h * width] = rnd_.Rand16() & bitdepth_mask;
}
}
reference_pred<Pixel>(pred, ref, width, height, &avg_ref);
ASM_REGISTER_STATE_CHECK(avg_pred_func_(
(uint8_t *)avg_chk.TopLeftPixel(), (uint8_t *)pred.TopLeftPixel(),
width, height, (uint8_t *)ref.TopLeftPixel(), ref.stride()));
EXPECT_TRUE(avg_chk.CheckValues(avg_ref));
if (HasFailure()) {
printf("Width: %d Height: %d\n", width, height);
avg_chk.PrintDifference(avg_ref);
return;
}
}
}
}
}
template <int bitdepth, typename Pixel>
void AvgPredTest<bitdepth, Pixel>::TestCompareReferenceRandom() {
const int width = 64;
const int height = 32;
Buffer<Pixel> ref = Buffer<Pixel>(width, height, 8);
ASSERT_TRUE(ref.Init());
Buffer<Pixel> pred = Buffer<Pixel>(width, height, 0, 32);
ASSERT_TRUE(pred.Init());
Buffer<Pixel> avg_ref = Buffer<Pixel>(width, height, 0, 32);
ASSERT_TRUE(avg_ref.Init());
Buffer<Pixel> avg_chk = Buffer<Pixel>(width, height, 0, 32);
ASSERT_TRUE(avg_chk.Init());
for (int i = 0; i < 500; ++i) {
const int bitdepth_mask = (1 << bitdepth) - 1;
for (int h = 0; h < height; ++h) {
for (int w = 0; w < width; ++w) {
ref.TopLeftPixel()[w + h * width] = rnd_.Rand16() & bitdepth_mask;
}
}
for (int h = 0; h < height; ++h) {
for (int w = 0; w < width; ++w) {
pred.TopLeftPixel()[w + h * width] = rnd_.Rand16() & bitdepth_mask;
}
}
reference_pred<Pixel>(pred, ref, width, height, &avg_ref);
ASM_REGISTER_STATE_CHECK(avg_pred_func_(
(uint8_t *)avg_chk.TopLeftPixel(), (uint8_t *)pred.TopLeftPixel(),
width, height, (uint8_t *)ref.TopLeftPixel(), ref.stride()));
EXPECT_TRUE(avg_chk.CheckValues(avg_ref));
if (HasFailure()) {
printf("Width: %d Height: %d\n", width, height);
avg_chk.PrintDifference(avg_ref);
return;
}
}
}
template <int bitdepth, typename Pixel>
void AvgPredTest<bitdepth, Pixel>::TestSpeed() {
for (int width_pow = 2; width_pow <= 6; ++width_pow) {
for (int height_pow = width_pow - 1; height_pow <= width_pow + 1;
++height_pow) {
// Don't test 4x2 or 64x128
if (height_pow == 1 || height_pow == 7) continue;
for (int ref_padding = 0; ref_padding < 2; ref_padding++) {
const int width = 1 << width_pow;
const int height = 1 << height_pow;
Buffer<Pixel> ref = Buffer<Pixel>(width, height, ref_padding ? 8 : 0);
ASSERT_TRUE(ref.Init());
Buffer<Pixel> pred = Buffer<Pixel>(width, height, 0, 32);
ASSERT_TRUE(pred.Init());
Buffer<Pixel> avg = Buffer<Pixel>(width, height, 0, 32);
ASSERT_TRUE(avg.Init());
const int bitdepth_mask = (1 << bitdepth) - 1;
for (int h = 0; h < height; ++h) {
for (int w = 0; w < width; ++w) {
ref.TopLeftPixel()[w + h * width] = rnd_.Rand16() & bitdepth_mask;
}
}
for (int h = 0; h < height; ++h) {
for (int w = 0; w < width; ++w) {
pred.TopLeftPixel()[w + h * width] = rnd_.Rand16() & bitdepth_mask;
}
}
vpx_usec_timer timer;
vpx_usec_timer_start(&timer);
for (int i = 0; i < 100000000 / (width * height); ++i) {
avg_pred_func_((uint8_t *)avg.TopLeftPixel(),
(uint8_t *)pred.TopLeftPixel(), width, height,
(uint8_t *)ref.TopLeftPixel(), ref.stride());
}
vpx_usec_timer_mark(&timer);
const int elapsed_time =
static_cast<int>(vpx_usec_timer_elapsed(&timer));
printf("Average Test (ref_padding: %d) %dx%d time: %5d us\n",
ref_padding, width, height, elapsed_time);
}
}
}
}
using AvgPredTestLBD = AvgPredTest<8, uint8_t>;
TEST_P(AvgPredTestLBD, SizeCombinations) { TestSizeCombinations(); }
TEST_P(AvgPredTestLBD, CompareReferenceRandom) { TestCompareReferenceRandom(); }
TEST_P(AvgPredTestLBD, DISABLED_Speed) { TestSpeed(); }
INSTANTIATE_TEST_SUITE_P(C, AvgPredTestLBD,
::testing::Values(&vpx_comp_avg_pred_c));
#if HAVE_SSE2
INSTANTIATE_TEST_SUITE_P(SSE2, AvgPredTestLBD,
::testing::Values(&vpx_comp_avg_pred_sse2));
#endif // HAVE_SSE2
#if HAVE_AVX2
INSTANTIATE_TEST_SUITE_P(AVX2, AvgPredTestLBD,
::testing::Values(&vpx_comp_avg_pred_avx2));
#endif // HAVE_AVX2
#if HAVE_NEON
INSTANTIATE_TEST_SUITE_P(NEON, AvgPredTestLBD,
::testing::Values(&vpx_comp_avg_pred_neon));
#endif // HAVE_NEON
#if HAVE_VSX
INSTANTIATE_TEST_SUITE_P(VSX, AvgPredTestLBD,
::testing::Values(&vpx_comp_avg_pred_vsx));
#endif // HAVE_VSX
#if HAVE_LSX
INSTANTIATE_TEST_SUITE_P(LSX, AvgPredTestLBD,
::testing::Values(&vpx_comp_avg_pred_lsx));
#endif // HAVE_LSX
#if CONFIG_VP9_HIGHBITDEPTH
using HighbdAvgPredFunc = void (*)(uint16_t *a, const uint16_t *b, int w, int h,
const uint16_t *c, int c_stride);
template <HighbdAvgPredFunc fn>
void highbd_wrapper(uint8_t *a, const uint8_t *b, int w, int h,
const uint8_t *c, int c_stride) {
fn((uint16_t *)a, (const uint16_t *)b, w, h, (const uint16_t *)c, c_stride);
}
using AvgPredTestHBD = AvgPredTest<12, uint16_t>;
TEST_P(AvgPredTestHBD, SizeCombinations) { TestSizeCombinations(); }
TEST_P(AvgPredTestHBD, CompareReferenceRandom) { TestCompareReferenceRandom(); }
TEST_P(AvgPredTestHBD, DISABLED_Speed) { TestSpeed(); }
INSTANTIATE_TEST_SUITE_P(
C, AvgPredTestHBD,
::testing::Values(&highbd_wrapper<vpx_highbd_comp_avg_pred_c>));
#if HAVE_SSE2
INSTANTIATE_TEST_SUITE_P(
SSE2, AvgPredTestHBD,
::testing::Values(&highbd_wrapper<vpx_highbd_comp_avg_pred_sse2>));
#endif // HAVE_SSE2
#if HAVE_NEON
INSTANTIATE_TEST_SUITE_P(
NEON, AvgPredTestHBD,
::testing::Values(&highbd_wrapper<vpx_highbd_comp_avg_pred_neon>));
#endif // HAVE_NEON
#endif // CONFIG_VP9_HIGHBITDEPTH
} // namespace