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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 <stdlib.h>
#include <new>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "vpx_config.h"
extern "C" {
#include "vp9/encoder/vp9_variance.h"
#include "vpx/vpx_integer.h"
#include "vp9_rtcd.h"
}
namespace {
using ::std::tr1::get;
using ::std::tr1::make_tuple;
using ::std::tr1::tuple;
class VP9VarianceTest :
public ::testing::TestWithParam<tuple<int, int, vp9_variance_fn_t> > {
public:
virtual void SetUp() {
const tuple<int, int, vp9_variance_fn_t>& params = GetParam();
width_ = get<0>(params);
height_ = get<1>(params);
variance_ = get<2>(params);
block_size_ = width_ * height_;
src_ = new uint8_t[block_size_];
ref_ = new uint8_t[block_size_];
ASSERT_TRUE(src_ != NULL);
ASSERT_TRUE(ref_ != NULL);
}
virtual void TearDown() {
delete[] src_;
delete[] ref_;
}
protected:
uint8_t* src_;
uint8_t* ref_;
int width_;
int height_;
int block_size_;
vp9_variance_fn_t variance_;
};
TEST_P(VP9VarianceTest, Zero) {
for (int i = 0; i <= 255; ++i) {
memset(src_, i, block_size_);
for (int j = 0; j <= 255; ++j) {
memset(ref_, j, block_size_);
unsigned int sse;
const unsigned int var = variance_(src_, width_, ref_, width_, &sse);
EXPECT_EQ(0u, var) << "src values: " << i << "ref values: " << j;
}
}
}
TEST_P(VP9VarianceTest, OneQuarter) {
memset(src_, 255, block_size_);
const int half = block_size_ / 2;
memset(ref_, 255, half);
memset(ref_ + half, 0, half);
unsigned int sse;
const unsigned int var = variance_(src_, width_, ref_, width_, &sse);
const unsigned int expected = block_size_ * 255 * 255 / 4;
EXPECT_EQ(expected, var);
}
const vp9_variance_fn_t variance4x4_c = vp9_variance4x4_c;
const vp9_variance_fn_t variance8x8_c = vp9_variance8x8_c;
const vp9_variance_fn_t variance8x16_c = vp9_variance8x16_c;
const vp9_variance_fn_t variance16x8_c = vp9_variance16x8_c;
const vp9_variance_fn_t variance16x16_c = vp9_variance16x16_c;
INSTANTIATE_TEST_CASE_P(
C, VP9VarianceTest,
::testing::Values(make_tuple(4, 4, variance4x4_c),
make_tuple(8, 8, variance8x8_c),
make_tuple(8, 16, variance8x16_c),
make_tuple(16, 8, variance16x8_c),
make_tuple(16, 16, variance16x16_c)));
#if HAVE_MMX
const vp9_variance_fn_t variance4x4_mmx = vp9_variance4x4_mmx;
const vp9_variance_fn_t variance8x8_mmx = vp9_variance8x8_mmx;
const vp9_variance_fn_t variance8x16_mmx = vp9_variance8x16_mmx;
const vp9_variance_fn_t variance16x8_mmx = vp9_variance16x8_mmx;
const vp9_variance_fn_t variance16x16_mmx = vp9_variance16x16_mmx;
INSTANTIATE_TEST_CASE_P(
MMX, VP9VarianceTest,
::testing::Values(make_tuple(4, 4, variance4x4_mmx),
make_tuple(8, 8, variance8x8_mmx),
make_tuple(8, 16, variance8x16_mmx),
make_tuple(16, 8, variance16x8_mmx),
make_tuple(16, 16, variance16x16_mmx)));
#endif
#if HAVE_SSE2
const vp9_variance_fn_t variance4x4_wmt = vp9_variance4x4_wmt;
const vp9_variance_fn_t variance8x8_wmt = vp9_variance8x8_wmt;
const vp9_variance_fn_t variance8x16_wmt = vp9_variance8x16_wmt;
const vp9_variance_fn_t variance16x8_wmt = vp9_variance16x8_wmt;
const vp9_variance_fn_t variance16x16_wmt = vp9_variance16x16_wmt;
INSTANTIATE_TEST_CASE_P(
SSE2, VP9VarianceTest,
::testing::Values(make_tuple(4, 4, variance4x4_wmt),
make_tuple(8, 8, variance8x8_wmt),
make_tuple(8, 16, variance8x16_wmt),
make_tuple(16, 8, variance16x8_wmt),
make_tuple(16, 16, variance16x16_wmt)));
#endif
} // namespace
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