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#include "slang-archive-file-system.h"
#include "../../slang-com-helper.h"
#include "../../slang-com-ptr.h"
#include "slang-io.h"
#include "slang-string-util.h"
#include "slang-blob.h"
#include "slang-string-slice-pool.h"
#include "slang-uint-set.h"
#include "slang-riff-file-system.h"
// Compression systems
#include "slang-deflate-compression-system.h"
#include "slang-lz4-compression-system.h"
// Zip file system
#include "slang-zip-file-system.h"
#include "slang-riff.h"
namespace Slang
{
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! StringSliceIndexMap !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
StringSliceIndexMap::CountIndex StringSliceIndexMap::add(const UnownedStringSlice& key, Index valueIndex)
{
StringSlicePool::Handle handle;
m_pool.findOrAdd(key, handle);
const CountIndex countIndex = StringSlicePool::asIndex(handle);
if (countIndex >= m_indexMap.getCount())
{
SLANG_ASSERT(countIndex == m_indexMap.getCount());
m_indexMap.add(valueIndex);
}
else
{
m_indexMap[countIndex] = valueIndex;
}
return countIndex;
}
StringSliceIndexMap::CountIndex StringSliceIndexMap::findOrAdd(const UnownedStringSlice& key, Index defaultValueIndex)
{
StringSlicePool::Handle handle;
m_pool.findOrAdd(key, handle);
const CountIndex countIndex = StringSlicePool::asIndex(handle);
if (countIndex >= m_indexMap.getCount())
{
SLANG_ASSERT(countIndex == m_indexMap.getCount());
m_indexMap.add(defaultValueIndex);
}
return countIndex;
}
void StringSliceIndexMap::clear()
{
m_pool.clear();
m_indexMap.clear();
}
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ImplicitDirectoryCollector !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ImplicitDirectoryCollector::ImplicitDirectoryCollector(const String& canonicalPath, bool directoryExists) :
m_directoryExists(directoryExists)
{
StringBuilder buffer;
if (canonicalPath != ".")
{
buffer << canonicalPath;
buffer.append('/');
}
m_prefix = buffer.ProduceString();
}
void ImplicitDirectoryCollector::addRemainingPath(SlangPathType pathType, const UnownedStringSlice& inPathRemainder)
{
// If it's zero length we probably don't want to add it
if (inPathRemainder.getLength() == 0)
{
// It's empty so don't add normal way - implies the directory exists
m_directoryExists = true;
return;
}
UnownedStringSlice pathRemainder(inPathRemainder);
const Index slashIndex = pathRemainder.indexOf('/');
// If we have a following / that means it's an implicit directory.
if (slashIndex >= 0)
{
pathType = SLANG_PATH_TYPE_DIRECTORY;
pathRemainder = UnownedStringSlice(pathRemainder.begin(), pathRemainder.begin() + slashIndex);
}
const Index countIndex = m_map.findOrAdd(pathRemainder, pathType);
// Make sure they are the same type
SLANG_ASSERT(SlangPathType(m_map.getValueAt(countIndex)) == pathType);
}
void ImplicitDirectoryCollector::addPath(SlangPathType pathType, const UnownedStringSlice& canonicalPath)
{
if (hasPrefix(canonicalPath))
{
UnownedStringSlice remainder = getRemainder(canonicalPath);
addRemainingPath(pathType, remainder);
}
}
SlangResult ImplicitDirectoryCollector::enumerate(FileSystemContentsCallBack callback, void* userData)
{
const Int count = m_map.getCount();
for (Index i = 0; i < count; ++i)
{
const auto& pair = m_map.getAt(i);
UnownedStringSlice path = pair.Key;
SlangPathType pathType = SlangPathType(pair.Value);
// Note *is* 0 terminated in the pool
// Let's check tho
SLANG_ASSERT(path.begin()[path.getLength()] == 0);
callback(pathType, path.begin(), userData);
}
return getDirectoryExists() ? SLANG_OK : SLANG_E_NOT_FOUND;
}
SlangResult loadArchiveFileSystem(const void* data, size_t dataSizeInBytes, RefPtr<ArchiveFileSystem>& outFileSystem)
{
RefPtr<ArchiveFileSystem> fileSystem;
if (ZipFileSystem::isArchive(data, dataSizeInBytes))
{
// It's a zip
SLANG_RETURN_ON_FAIL(ZipFileSystem::create(fileSystem));
}
else if (RiffFileSystem::isArchive(data, dataSizeInBytes))
{
// It's riff contained (Slang specific)
fileSystem = new RiffFileSystem(nullptr);
}
else
{
return SLANG_FAIL;
}
SLANG_RETURN_ON_FAIL(fileSystem->loadArchive(data, dataSizeInBytes));
outFileSystem = fileSystem;
return SLANG_OK;
}
SlangResult createArchiveFileSystem(SlangArchiveType type, RefPtr<ArchiveFileSystem>& outFileSystem)
{
switch (type)
{
case SLANG_ARCHIVE_TYPE_ZIP:
{
return ZipFileSystem::create(outFileSystem);
}
case SLANG_ARCHIVE_TYPE_RIFF:
{
outFileSystem = new RiffFileSystem(nullptr);
return SLANG_OK;
}
case SLANG_ARCHIVE_TYPE_RIFF_DEFLATE:
{
outFileSystem = new RiffFileSystem(DeflateCompressionSystem::getSingleton());
return SLANG_OK;
}
case SLANG_ARCHIVE_TYPE_RIFF_LZ4:
{
outFileSystem = new RiffFileSystem(LZ4CompressionSystem::getSingleton());
return SLANG_OK;
}
}
return SLANG_FAIL;
}
} // namespace Slang
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