84 lines
1.8 KiB
C++
84 lines
1.8 KiB
C++
/*
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* unancient.cpp
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* -------------
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* Purpose: Implementation file for extracting modules from compressed files supported by libancient
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* Notes : (currently none)
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#include "stdafx.h"
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#include "unancient.h"
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#ifdef MPT_WITH_ANCIENT
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#include <ancient/ancient.hpp>
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#endif // MPT_WITH_ANCIENT
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OPENMPT_NAMESPACE_BEGIN
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#ifdef MPT_WITH_ANCIENT
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CAncientArchive::CAncientArchive(FileReader &file)
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: ArchiveBase(file)
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{
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inFile.Rewind();
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try
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{
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auto dataView = inFile.GetPinnedView();
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if(!ancient::Decompressor::detect(mpt::byte_cast<const std::uint8_t*>(dataView.data()), dataView.size()))
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{
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return;
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}
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ancient::Decompressor decompressor{mpt::byte_cast<const std::uint8_t*>(dataView.data()), dataView.size(), true, true};
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if(decompressor.getImageSize() || decompressor.getImageOffset())
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{
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// skip disk images
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return;
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}
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ArchiveFileInfo fileInfo;
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fileInfo.name = inFile.GetOptionalFileName().value_or(P_(""));
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fileInfo.type = ArchiveFileType::Normal;
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fileInfo.size = decompressor.getRawSize().value_or(0);
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contents.push_back(fileInfo);
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} catch(const ancient::Error &)
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{
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return;
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}
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}
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CAncientArchive::~CAncientArchive()
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{
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return;
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}
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bool CAncientArchive::ExtractFile(std::size_t index)
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{
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if(index >= contents.size())
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{
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return false;
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}
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data.clear();
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inFile.Rewind();
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try
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{
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auto dataView = inFile.GetPinnedView();
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ancient::Decompressor decompressor{mpt::byte_cast<const std::uint8_t*>(dataView.data()), dataView.size(), true, true};
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data = mpt::buffer_cast<std::vector<char>>(decompressor.decompress(true));
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} catch (const ancient::Error &)
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{
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return false;
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}
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return (data.size() > 0);
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}
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#endif // MPT_WITH_ANCIENT
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OPENMPT_NAMESPACE_END
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