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/* Copyright (C) Teemu Suutari */
#include "ancient.hpp"
#include "Decompressor.hpp"
#include "common/Buffer.hpp"
#include "common/StaticBuffer.hpp"
#include "common/WrappedVectorBuffer.hpp"
#include <memory>
namespace ancient
{
namespace internal
{
namespace APIv2
{
class DecompressorImpl
{
public:
ConstStaticBuffer _buffer;
std::shared_ptr<Decompressor> _decompressor;
public:
DecompressorImpl(const std::vector<uint8_t> &packedData,bool exactSizeKnown,bool verify) :
_buffer(packedData.data(), packedData.size()),
_decompressor(Decompressor::create(_buffer, exactSizeKnown, verify))
{
return;
}
DecompressorImpl(const uint8_t *packedData,size_t packedSize,bool exactSizeKnown,bool verify) :
_buffer(packedData, packedSize),
_decompressor(Decompressor::create(_buffer, exactSizeKnown, verify))
{
return;
}
};
}
}
inline namespace APIv2
{
Error::Error() noexcept
{
// nothing needed
}
Error::~Error()
{
// nothing needed
}
InvalidFormatError::InvalidFormatError() noexcept
{
// nothing needed
}
InvalidFormatError::~InvalidFormatError()
{
// nothing needed
}
DecompressionError::DecompressionError() noexcept
{
// nothing needed
}
DecompressionError::~DecompressionError()
{
// nothing needed
}
VerificationError::VerificationError() noexcept
{
// nothing needed
}
VerificationError::~VerificationError()
{
// nothing needed
}
// ---
bool Decompressor::detect(const std::vector<uint8_t> &packedData) noexcept
{
return internal::Decompressor::detect(internal::ConstStaticBuffer(packedData.data(), packedData.size()));
}
bool Decompressor::detect(const uint8_t *packedData, size_t packedSize) noexcept
{
return internal::Decompressor::detect(internal::ConstStaticBuffer(packedData, packedSize));
}
Decompressor::Decompressor(const std::vector<uint8_t> &packedData,bool exactSizeKnown,bool verify) :
m_impl(std::make_unique<internal::APIv2::DecompressorImpl>(packedData, exactSizeKnown, verify))
{
return;
}
Decompressor::Decompressor(const uint8_t *packedData,size_t packedSize,bool exactSizeKnown,bool verify) :
m_impl(std::make_unique<internal::APIv2::DecompressorImpl>(packedData, packedSize, exactSizeKnown, verify))
{
return;
}
const std::string &Decompressor::getName() const noexcept
{
return m_impl->_decompressor->getName();
}
size_t Decompressor::getMaxPackedSize() noexcept
{
return internal::Decompressor::getMaxPackedSize();
}
size_t Decompressor::getMaxRawSize() noexcept
{
return internal::Decompressor::getMaxRawSize();
}
std::optional<size_t> Decompressor::getPackedSize() const noexcept
{
size_t packedSize=m_impl->_decompressor->getPackedSize();
if (packedSize==0)
{
return std::nullopt;
}
return packedSize;
}
std::optional<size_t> Decompressor::getRawSize() const noexcept
{
size_t rawSize=m_impl->_decompressor->getRawSize();
if (rawSize==0)
{
return std::nullopt;
}
return rawSize;
}
std::optional<size_t> Decompressor::getImageSize() const noexcept
{
size_t imageSize=m_impl->_decompressor->getImageSize();
size_t imageOffset=m_impl->_decompressor->getImageOffset();
bool isImage=((imageSize>0)||(imageOffset>0));
if (!isImage)
{
return std::nullopt;
}
return imageSize;
}
std::optional<size_t> Decompressor::getImageOffset() const noexcept
{
size_t imageSize=m_impl->_decompressor->getImageSize();
size_t imageOffset=m_impl->_decompressor->getImageOffset();
bool isImage=((imageSize>0)||(imageOffset>0));
if (!isImage)
{
return std::nullopt;
}
return imageOffset;
}
std::vector<uint8_t> Decompressor::decompress(bool verify)
{
std::vector<uint8_t> result((m_impl->_decompressor->getRawSize())?m_impl->_decompressor->getRawSize():m_impl->_decompressor->getMaxRawSize());
{
internal::WrappedVectorBuffer buffer(result);
m_impl->_decompressor->decompress(buffer, verify);
}
result.resize(m_impl->_decompressor->getRawSize());
result.shrink_to_fit();
return result;
}
Decompressor::~Decompressor()
{
// nothing needed
}
}
}
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