133 строки
3.6 KiB
C++
133 строки
3.6 KiB
C++
/*
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* Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "./vpx_dsp_rtcd.h"
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#include "vpx/vpx_integer.h"
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#include "test/acm_random.h"
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#include "test/register_state_check.h"
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namespace {
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using ::libvpx_test::ACMRandom;
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typedef void (*MinMaxFunc)(const uint8_t *a, int a_stride,
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const uint8_t *b, int b_stride,
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int *min, int *max);
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class MinMaxTest : public ::testing::TestWithParam<MinMaxFunc> {
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public:
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virtual void SetUp() {
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mm_func_ = GetParam();
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rnd_.Reset(ACMRandom::DeterministicSeed());
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}
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protected:
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MinMaxFunc mm_func_;
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ACMRandom rnd_;
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};
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void reference_minmax(const uint8_t *a, int a_stride,
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const uint8_t *b, int b_stride,
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int *min_ret, int *max_ret) {
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int min = 255;
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int max = 0;
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for (int i = 0; i < 8; i++) {
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for (int j = 0; j < 8; j++) {
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const int diff = abs(a[i * a_stride + j] - b[i * b_stride + j]);
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if (min > diff) min = diff;
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if (max < diff) max = diff;
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}
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}
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*min_ret = min;
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*max_ret = max;
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}
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TEST_P(MinMaxTest, MinValue) {
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for (int i = 0; i < 64; i++) {
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uint8_t a[64], b[64];
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memset(a, 0, sizeof(a));
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memset(b, 255, sizeof(b));
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b[i] = i; // Set a minimum difference of i.
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int min, max;
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ASM_REGISTER_STATE_CHECK(mm_func_(a, 8, b, 8, &min, &max));
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EXPECT_EQ(255, max);
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EXPECT_EQ(i, min);
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}
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}
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TEST_P(MinMaxTest, MaxValue) {
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for (int i = 0; i < 64; i++) {
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uint8_t a[64], b[64];
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memset(a, 0, sizeof(a));
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memset(b, 0, sizeof(b));
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b[i] = i; // Set a maximum difference of i.
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int min, max;
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ASM_REGISTER_STATE_CHECK(mm_func_(a, 8, b, 8, &min, &max));
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EXPECT_EQ(i, max);
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EXPECT_EQ(0, min);
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}
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}
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TEST_P(MinMaxTest, CompareReference) {
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uint8_t a[64], b[64];
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for (int j = 0; j < 64; j++) {
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a[j] = rnd_.Rand8();
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b[j] = rnd_.Rand8();
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}
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int min_ref, max_ref, min, max;
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reference_minmax(a, 8, b, 8, &min_ref, &max_ref);
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ASM_REGISTER_STATE_CHECK(mm_func_(a, 8, b, 8, &min, &max));
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EXPECT_EQ(max_ref, max);
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EXPECT_EQ(min_ref, min);
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}
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TEST_P(MinMaxTest, CompareReferenceAndVaryStride) {
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uint8_t a[8 * 64], b[8 * 64];
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for (int i = 0; i < 8 * 64; i++) {
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a[i] = rnd_.Rand8();
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b[i] = rnd_.Rand8();
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}
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for (int a_stride = 8; a_stride <= 64; a_stride += 8) {
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for (int b_stride = 8; b_stride <= 64; b_stride += 8) {
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int min_ref, max_ref, min, max;
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reference_minmax(a, a_stride, b, b_stride, &min_ref, &max_ref);
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ASM_REGISTER_STATE_CHECK(mm_func_(a, a_stride, b, b_stride, &min, &max));
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EXPECT_EQ(max_ref, max) << "when a_stride = " << a_stride
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<< " and b_stride = " << b_stride;;
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EXPECT_EQ(min_ref, min) << "when a_stride = " << a_stride
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<< " and b_stride = " << b_stride;;
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}
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}
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}
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INSTANTIATE_TEST_CASE_P(C, MinMaxTest, ::testing::Values(&vpx_minmax_8x8_c));
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#if HAVE_SSE2
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INSTANTIATE_TEST_CASE_P(SSE2, MinMaxTest,
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::testing::Values(&vpx_minmax_8x8_sse2));
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#endif
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#if HAVE_NEON
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INSTANTIATE_TEST_CASE_P(NEON, MinMaxTest,
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::testing::Values(&vpx_minmax_8x8_neon));
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#endif
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} // namespace
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