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/*
* Copyright (c) 2012 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 <string.h>
#include <limits.h>
#include <stdio.h>
#include "./vpx_config.h"
#if CONFIG_VP9_ENCODER
#include "./vp9_rtcd.h"
#endif
#include "vpx_mem/vpx_mem.h"
#include "test/acm_random.h"
#include "test/clear_system_state.h"
#include "test/register_state_check.h"
#include "test/util.h"
#include "third_party/googletest/src/include/gtest/gtest.h"
using libvpx_test::ACMRandom;
namespace {
class AverageTestBase : public ::testing::Test {
public:
AverageTestBase(int width, int height) : width_(width), height_(height) {}
static void SetUpTestCase() {
source_data_ = reinterpret_cast<uint8_t*>(
vpx_memalign(kDataAlignment, kDataBlockSize));
}
static void TearDownTestCase() {
vpx_free(source_data_);
source_data_ = NULL;
}
virtual void TearDown() {
libvpx_test::ClearSystemState();
}
protected:
// Handle blocks up to 4 blocks 64x64 with stride up to 128
static const int kDataAlignment = 16;
static const int kDataBlockSize = 64 * 128;
virtual void SetUp() {
source_stride_ = (width_ + 31) & ~31;
rnd_.Reset(ACMRandom::DeterministicSeed());
}
// Sum Pixels
unsigned int ReferenceAverage8x8(const uint8_t* source, int pitch ) {
unsigned int average = 0;
for (int h = 0; h < 8; ++h)
for (int w = 0; w < 8; ++w)
average += source[h * source_stride_ + w];
return ((average + 32) >> 6);
}
unsigned int ReferenceAverage4x4(const uint8_t* source, int pitch ) {
unsigned int average = 0;
for (int h = 0; h < 4; ++h)
for (int w = 0; w < 4; ++w)
average += source[h * source_stride_ + w];
return ((average + 8) >> 4);
}
void FillConstant(uint8_t fill_constant) {
for (int i = 0; i < width_ * height_; ++i) {
source_data_[i] = fill_constant;
}
}
void FillRandom() {
for (int i = 0; i < width_ * height_; ++i) {
source_data_[i] = rnd_.Rand8();
}
}
int width_, height_;
static uint8_t* source_data_;
int source_stride_;
ACMRandom rnd_;
};
typedef unsigned int (*AverageFunction)(const uint8_t* s, int pitch);
typedef std::tr1::tuple<int, int, int, int, AverageFunction> AvgFunc;
class AverageTest
: public AverageTestBase,
public ::testing::WithParamInterface<AvgFunc>{
public:
AverageTest() : AverageTestBase(GET_PARAM(0), GET_PARAM(1)) {}
protected:
void CheckAverages() {
unsigned int expected = 0;
if (GET_PARAM(3) == 8) {
expected = ReferenceAverage8x8(source_data_+ GET_PARAM(2),
source_stride_);
} else if (GET_PARAM(3) == 4) {
expected = ReferenceAverage4x4(source_data_+ GET_PARAM(2),
source_stride_);
}
ASM_REGISTER_STATE_CHECK(GET_PARAM(4)(source_data_+ GET_PARAM(2),
source_stride_));
unsigned int actual = GET_PARAM(4)(source_data_+ GET_PARAM(2),
source_stride_);
EXPECT_EQ(expected, actual);
}
};
uint8_t* AverageTestBase::source_data_ = NULL;
TEST_P(AverageTest, MinValue) {
FillConstant(0);
CheckAverages();
}
TEST_P(AverageTest, MaxValue) {
FillConstant(255);
CheckAverages();
}
TEST_P(AverageTest, Random) {
// The reference frame, but not the source frame, may be unaligned for
// certain types of searches.
for (int i = 0; i < 1000; i++) {
FillRandom();
CheckAverages();
}
}
using std::tr1::make_tuple;
INSTANTIATE_TEST_CASE_P(
C, AverageTest,
::testing::Values(
make_tuple(16, 16, 1, 8, &vp9_avg_8x8_c),
make_tuple(16, 16, 1, 4, &vp9_avg_4x4_c)));
#if HAVE_SSE2
INSTANTIATE_TEST_CASE_P(
SSE2, AverageTest,
::testing::Values(
make_tuple(16, 16, 0, 8, &vp9_avg_8x8_sse2),
make_tuple(16, 16, 5, 8, &vp9_avg_8x8_sse2),
make_tuple(32, 32, 15, 8, &vp9_avg_8x8_sse2),
make_tuple(16, 16, 0, 4, &vp9_avg_4x4_sse2),
make_tuple(16, 16, 5, 4, &vp9_avg_4x4_sse2),
make_tuple(32, 32, 15, 4, &vp9_avg_4x4_sse2)));
#endif
} // namespace
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