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// Copyright 2020 The libgav1 Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "tests/block_utils.h"
#include <algorithm>
#include <cstdint>
#include <cstdio>
#include <cstring>
namespace libgav1 {
namespace test_utils {
namespace {
#define LIBGAV1_DEBUG_FORMAT_CODE "x"
template <typename Pixel>
void PrintBlockDiff(const Pixel* block1, const Pixel* block2, int width,
int height, int stride1, int stride2,
const bool print_padding) {
const int print_width = print_padding ? std::min(stride1, stride2) : width;
const int field_width = (sizeof(Pixel) == 1) ? 4 : 5;
for (int y = 0; y < height; ++y) {
printf("[%2d] ", y);
for (int x = 0; x < print_width; ++x) {
if (x >= width) {
if (block1[x] == block2[x]) {
printf("[%*" LIBGAV1_DEBUG_FORMAT_CODE "] ", field_width, block1[x]);
} else {
printf("[*%*" LIBGAV1_DEBUG_FORMAT_CODE "] ", field_width - 1,
block1[x]);
}
} else {
if (block1[x] == block2[x]) {
printf("%*" LIBGAV1_DEBUG_FORMAT_CODE " ", field_width, block1[x]);
} else {
printf("*%*" LIBGAV1_DEBUG_FORMAT_CODE " ", field_width - 1,
block1[x]);
}
}
}
printf("\n");
block1 += stride1;
block2 += stride2;
}
}
} // namespace
template <typename Pixel>
void PrintBlock(const Pixel* block, int width, int height, int stride,
const bool print_padding /*= false*/) {
const int print_width = print_padding ? stride : width;
const int field_width = (sizeof(Pixel) == 1) ? 4 : 5;
for (int y = 0; y < height; ++y) {
printf("[%2d] ", y);
for (int x = 0; x < print_width; ++x) {
if (x >= width) {
printf("[%*" LIBGAV1_DEBUG_FORMAT_CODE "] ", field_width, block[x]);
} else {
printf("%*" LIBGAV1_DEBUG_FORMAT_CODE " ", field_width, block[x]);
}
}
printf("\n");
block += stride;
}
}
#undef LIBGAV1_DEBUG_FORMAT_CODE
template void PrintBlock(const uint8_t* block, int width, int height,
int stride, bool print_padding /*= false*/);
template void PrintBlock(const uint16_t* block, int width, int height,
int stride, bool print_padding /*= false*/);
template void PrintBlock(const int8_t* block, int width, int height, int stride,
bool print_padding /*= false*/);
template void PrintBlock(const int16_t* block, int width, int height,
int stride, bool print_padding /*= false*/);
template <typename Pixel>
bool CompareBlocks(const Pixel* block1, const Pixel* block2, int width,
int height, int stride1, int stride2,
const bool check_padding, const bool print_diff /*= true*/) {
bool ok = true;
const int check_width = check_padding ? std::min(stride1, stride2) : width;
for (int y = 0; y < height; ++y) {
const uint64_t row1 = static_cast<uint64_t>(y) * stride1;
const uint64_t row2 = static_cast<uint64_t>(y) * stride2;
ok = memcmp(block1 + row1, block2 + row2,
sizeof(block1[0]) * check_width) == 0;
if (!ok) break;
}
if (!ok && print_diff) {
printf("block1 (width: %d height: %d stride: %d):\n", width, height,
stride1);
PrintBlockDiff(block1, block2, width, height, stride1, stride2,
check_padding);
printf("\nblock2 (width: %d height: %d stride: %d):\n", width, height,
stride2);
PrintBlockDiff(block2, block1, width, height, stride2, stride1,
check_padding);
}
return ok;
}
template bool CompareBlocks(const uint8_t* block1, const uint8_t* block2,
int width, int height, int stride1, int stride2,
const bool check_padding,
const bool print_diff /*= true*/);
template bool CompareBlocks(const uint16_t* block1, const uint16_t* block2,
int width, int height, int stride1, int stride2,
const bool check_padding,
const bool print_diff /*= true*/);
template bool CompareBlocks(const int8_t* block1, const int8_t* block2,
int width, int height, int stride1, int stride2,
const bool check_padding,
const bool print_diff /*= true*/);
template bool CompareBlocks(const int16_t* block1, const int16_t* block2,
int width, int height, int stride1, int stride2,
const bool check_padding,
const bool print_diff /*= true*/);
} // namespace test_utils
} // namespace libgav1
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