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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/utils.h"
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstring>
#include <memory>
#include <string>
#include "absl/strings/string_view.h"
#include "absl/time/time.h"
#include "gtest/gtest.h"
#include "src/dsp/dsp.h"
#include "src/gav1/decoder_buffer.h"
#include "src/utils/constants.h"
#include "tests/third_party/libvpx/md5_helper.h"
namespace libgav1 {
namespace test_utils {
namespace {
int CloseFile(FILE* stream) { return fclose(stream); }
bool ReadFileToString(absl::string_view file_name, std::string* const string) {
using FilePtr = std::unique_ptr<FILE, decltype(&CloseFile)>;
FilePtr file(fopen(std::string(file_name).c_str(), "rb"), &CloseFile);
if (file == nullptr) return false;
do {
int c = fgetc(file.get());
if (ferror(file.get()) != 0) return false;
if (c != EOF) {
string->append(1, static_cast<char>(c));
} else {
break;
}
} while (true);
return true;
}
} // namespace
void ResetDspTable(const int bitdepth) {
dsp::Dsp* const dsp = dsp_internal::GetWritableDspTable(bitdepth);
ASSERT_NE(dsp, nullptr);
memset(dsp, 0, sizeof(dsp::Dsp));
}
std::string GetMd5Sum(const void* bytes, size_t size) {
libvpx_test::MD5 md5;
md5.Add(static_cast<const uint8_t*>(bytes), size);
return md5.Get();
}
template <typename Pixel>
std::string GetMd5Sum(const Pixel* block, int width, int height, int stride) {
libvpx_test::MD5 md5;
const Pixel* row = block;
for (int i = 0; i < height; ++i) {
md5.Add(reinterpret_cast<const uint8_t*>(row), width * sizeof(Pixel));
row += stride;
}
return md5.Get();
}
template std::string GetMd5Sum(const int8_t* block, int width, int height,
int stride);
template std::string GetMd5Sum(const int16_t* block, int width, int height,
int stride);
std::string GetMd5Sum(const DecoderBuffer& buffer) {
libvpx_test::MD5 md5;
const size_t pixel_size =
(buffer.bitdepth == 8) ? sizeof(uint8_t) : sizeof(uint16_t);
for (int plane = kPlaneY; plane < buffer.NumPlanes(); ++plane) {
const int height = buffer.displayed_height[plane];
const size_t width = buffer.displayed_width[plane] * pixel_size;
const int stride = buffer.stride[plane];
const uint8_t* plane_buffer = buffer.plane[plane];
for (int row = 0; row < height; ++row) {
md5.Add(plane_buffer, width);
plane_buffer += stride;
}
}
return md5.Get();
}
void CheckMd5Digest(const char name[], const char function_name[],
const char expected_digest[], const void* data, size_t size,
absl::Duration elapsed_time) {
const std::string digest = test_utils::GetMd5Sum(data, size);
printf("Mode %s[%31s]: %5d us MD5: %s\n", name, function_name,
static_cast<int>(absl::ToInt64Microseconds(elapsed_time)),
digest.c_str());
EXPECT_STREQ(expected_digest, digest.c_str());
}
template <typename Pixel>
void CheckMd5Digest(const char name[], const char function_name[],
const char expected_digest[], const Pixel* block, int width,
int height, int stride, absl::Duration elapsed_time) {
const std::string digest =
test_utils::GetMd5Sum(block, width, height, stride);
printf("Mode %s[%31s]: %5d us MD5: %s\n", name, function_name,
static_cast<int>(absl::ToInt64Microseconds(elapsed_time)),
digest.c_str());
EXPECT_STREQ(expected_digest, digest.c_str());
}
template void CheckMd5Digest(const char name[], const char function_name[],
const char expected_digest[], const int8_t* block,
int width, int height, int stride,
absl::Duration elapsed_time);
template void CheckMd5Digest(const char name[], const char function_name[],
const char expected_digest[], const int16_t* block,
int width, int height, int stride,
absl::Duration elapsed_time);
void CheckMd5Digest(const char name[], const char function_name[],
const char expected_digest[], const char actual_digest[],
absl::Duration elapsed_time) {
printf("Mode %s[%31s]: %5d us MD5: %s\n", name, function_name,
static_cast<int>(absl::ToInt64Microseconds(elapsed_time)),
actual_digest);
EXPECT_STREQ(expected_digest, actual_digest);
}
namespace {
std::string GetSourceDir() {
#if defined(__ANDROID__)
// Test files must be manually supplied. This path is frequently
// available on development devices.
return std::string("/data/local/tmp/tests/data");
#elif defined(LIBGAV1_FLAGS_SRCDIR)
return std::string(LIBGAV1_FLAGS_SRCDIR) + "/tests/data";
#else
return std::string(".");
#endif // defined(__ANDROID__)
}
std::string GetTempDir() {
const char* path = getenv("TMPDIR");
if (path == nullptr || path[0] == '\0') path = getenv("TEMP");
if (path != nullptr && path[0] != '\0') return std::string(path);
#if defined(__ANDROID__)
return std::string("/data/local/tmp");
#elif defined(LIBGAV1_FLAGS_TMPDIR)
return std::string(LIBGAV1_FLAGS_TMPDIR);
#else
return std::string(".");
#endif // defined(__ANDROID__)
}
} // namespace
std::string GetTestInputFilePath(absl::string_view file_name) {
const char* const path = getenv("LIBGAV1_TEST_DATA_PATH");
if (path != nullptr && path[0] != '\0') {
return std::string(path) + "/" + std::string(file_name);
}
return GetSourceDir() + "/" + std::string(file_name);
}
std::string GetTestOutputFilePath(absl::string_view file_name) {
return GetTempDir() + "/" + std::string(file_name);
}
void GetTestData(absl::string_view file_name, const bool is_output_file,
std::string* const output) {
ASSERT_NE(output, nullptr);
const std::string absolute_file_path = is_output_file
? GetTestOutputFilePath(file_name)
: GetTestInputFilePath(file_name);
ASSERT_TRUE(ReadFileToString(absolute_file_path, output));
}
} // namespace test_utils
} // namespace libgav1
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