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// unit-compression.cpp
#include "tools/unit-test/slang-unit-test.h"
#include "source/core/slang-io.h"
#include "../../source/core/slang-zip-file-system.h"
#include "../../source/core/slang-lz4-compression-system.h"
#include "../../source/core/slang-deflate-compression-system.h"
using namespace Slang;
static bool _equals(const void* data, size_t size, ISlangBlob* blob)
{
return blob && blob->getBufferSize() == size && memcmp(blob->getBufferPointer(), data, size) == 0;
}
template <size_t SIZE>
static bool _equals(const char (&text)[SIZE], ISlangBlob* blob)
{
return _equals(text, SIZE, blob);
}
static List<String> _getContents(ISlangFileSystemExt* fileSystem, const char* path)
{
List<String> objs;
fileSystem->enumeratePathContents(path, [](SlangPathType pathType, const char* name, void* userData) {
List<String>& out = *(List<String>*)userData;
out.add(name);
}, &objs);
return objs;
}
SLANG_UNIT_TEST(compression)
{
const SlangArchiveType archiveTypes[] =
{
SLANG_ARCHIVE_TYPE_RIFF,
SLANG_ARCHIVE_TYPE_RIFF_DEFLATE,
SLANG_ARCHIVE_TYPE_RIFF_LZ4,
SLANG_ARCHIVE_TYPE_ZIP
};
for (auto archiveType : archiveTypes)
{
// Test out archive file systems
RefPtr<ArchiveFileSystem> archiveFileSystem;
SLANG_CHECK(SLANG_SUCCEEDED(createArchiveFileSystem(archiveType, archiveFileSystem)));
const char contents[] = "I'm compressed";
const char contents2[] = "Some more stuff";
const char contents3[] = "Replace it";
{
ISlangMutableFileSystem* fileSystem = archiveFileSystem;
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->createDirectory("hello")));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->createDirectory("hello2")));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->remove("hello")));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->createDirectory("hello")));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->saveFile("file.txt", contents, SLANG_COUNT_OF(contents))));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->saveFile("file2.txt", contents2, SLANG_COUNT_OF(contents2))));
ComPtr<ISlangBlob> blob;
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->loadFile("file.txt", blob.writeRef())));
SLANG_CHECK(_equals(contents, blob));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->loadFile("file2.txt", blob.writeRef())));
SLANG_CHECK(_equals(contents2, blob));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->saveFile("file2.txt", contents3, SLANG_COUNT_OF(contents3))));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->loadFile("file2.txt", blob.writeRef())));
SLANG_CHECK(_equals(contents3, blob));
// Check the path type
{
SlangPathType pathType;
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->getPathType("file2.txt", &pathType)));
SLANG_CHECK(pathType == SLANG_PATH_TYPE_FILE);
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->getPathType("hello", &pathType)));
SLANG_CHECK(pathType == SLANG_PATH_TYPE_DIRECTORY);
}
// Enumerate
{
for (const auto& obj : _getContents(fileSystem, ""))
{
// All of these should exist
SlangPathType pathType;
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->getPathType(obj.getBuffer(), &pathType)));
}
}
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->saveFile("implicit-path/file2.txt", contents3, SLANG_COUNT_OF(contents3))));
{
SlangPathType pathType;
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->getPathType("implicit-path", &pathType)));
SLANG_CHECK(pathType == SLANG_PATH_TYPE_DIRECTORY);
List<String> objs = _getContents(fileSystem, "implicit-path");
// It contains a file
SLANG_CHECK(objs.getCount() == 1);
for (const auto& obj : objs)
{
String path = Path::combine("implicit-path", obj);
// All of these should exist
SlangPathType pathType;
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->getPathType(path.getBuffer(), &pathType)));
}
// Make an explicit path, and see whe have the same results
fileSystem->createDirectory("implicit-path");
objs = _getContents(fileSystem, "implicit-path");
SLANG_CHECK(objs.getCount() == 1);
}
}
// Load and check its okay
{
ComPtr<ISlangBlob> archiveBlob;
SLANG_CHECK(SLANG_SUCCEEDED(archiveFileSystem->storeArchive(false, archiveBlob.writeRef())));
RefPtr<ArchiveFileSystem> fileSystem;
#if 0
SLANG_CHECK(SLANG_SUCCEEDED(createArchiveFileSystem(archiveType, fileSystem)));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->loadArchive(archiveBlob->getBufferPointer(), archiveBlob->getBufferSize())));
#else
SLANG_CHECK(SLANG_SUCCEEDED(loadArchiveFileSystem(archiveBlob->getBufferPointer(), archiveBlob->getBufferSize(), fileSystem)));
#endif
ComPtr<ISlangBlob> blob;
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->loadFile("file.txt", blob.writeRef())));
SLANG_CHECK(_equals(contents, blob));
SLANG_CHECK(SLANG_SUCCEEDED(fileSystem->loadFile("file2.txt", blob.writeRef())));
SLANG_CHECK(_equals(contents3, blob));
}
}
// Test out compression systems
for (Index i = 0; i < 2; ++i)
{
// Lets try lz4
ICompressionSystem* system = nullptr;
if (i == 0)
{
system = LZ4CompressionSystem::getSingleton();
}
else
{
system = DeflateCompressionSystem::getSingleton();
}
const char src[] = "Some text to compress";
size_t srcSize = sizeof(src);
ComPtr<ISlangBlob> compressedBlob;
CompressionStyle style;
SLANG_CHECK(SLANG_SUCCEEDED(system->compress(&style, src, srcSize, compressedBlob.writeRef())));
// Now lets decompress
List<char> decompressedData;
decompressedData.setCount(srcSize);
SLANG_CHECK(SLANG_SUCCEEDED(system->decompress(compressedBlob->getBufferPointer(), compressedBlob->getBufferSize(), srcSize, decompressedData.getBuffer())));
SLANG_CHECK(memcmp(src, decompressedData.getBuffer(), srcSize) == 0);
}
}
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