mirror of https://github.com/AxioDL/metaforce.git
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
#include "PAK.hpp"
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namespace Retro
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{
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namespace DNAMP3
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{
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void PAK::read(Athena::io::IStreamReader& reader)
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{
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reader.setEndian(Athena::BigEndian);
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m_header.read(reader);
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if (m_header.version != 2)
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LogModule.report(LogVisor::FatalError, "unexpected PAK magic");
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reader.seek(8, Athena::Current);
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atUint32 strgSz = reader.readUint32();
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reader.seek(4, Athena::Current);
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atUint32 rshdSz = reader.readUint32();
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reader.seek(44, Athena::Current);
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m_dataOffset = 128 + strgSz + rshdSz;
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atUint32 nameCount = reader.readUint32();
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m_nameEntries.clear();
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m_nameEntries.reserve(nameCount);
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for (atUint32 n=0 ; n<nameCount ; ++n)
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{
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m_nameEntries.emplace_back();
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m_nameEntries.back().read(reader);
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}
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reader.seek((reader.position() + 63) & ~63, Athena::Begin);
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atUint32 count = reader.readUint32();
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m_entries.clear();
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m_entries.reserve(count);
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m_idMap.clear();
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m_idMap.reserve(count);
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for (atUint32 e=0 ; e<count ; ++e)
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{
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m_entries.emplace_back();
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m_entries.back().read(reader);
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m_idMap[m_entries.back().id] = &m_entries.back();
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}
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m_nameMap.clear();
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m_nameMap.reserve(nameCount);
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for (NameEntry& entry : m_nameEntries)
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{
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std::unordered_map<UniqueID64, Entry*>::iterator found = m_idMap.find(entry.id);
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if (found != m_idMap.end())
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m_nameMap[entry.name] = found->second;
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}
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}
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void PAK::write(Athena::io::IStreamWriter& writer) const
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{
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writer.setEndian(Athena::BigEndian);
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m_header.write(writer);
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FourCC("STRG").write(writer);
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atUint32 strgSz = 4;
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for (const NameEntry& entry : m_nameEntries)
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strgSz += entry.name.size() + 13;
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atUint32 strgPad = ((strgSz + 63) & ~63) - strgSz;
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strgSz += strgPad;
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writer.writeUint32(strgSz);
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FourCC("RSHD").write(writer);
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atUint32 rshdSz = 4 + 24 * m_entries.size();
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atUint32 rshdPad = ((rshdSz + 63) & ~63) - rshdSz;
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rshdSz += rshdPad;
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writer.writeUint32(rshdSz);
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FourCC("DATA").write(writer);
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atUint32 dataSz = 0;
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for (const Entry& entry : m_entries)
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dataSz += (entry.size + 63) & ~63;
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atUint32 dataPad = ((dataSz + 63) & ~63) - dataSz;
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dataSz += dataPad;
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writer.writeUint32(dataSz);
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writer.seek(36, Athena::Current);
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writer.writeUint32(m_nameEntries.size());
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for (const NameEntry& entry : m_nameEntries)
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entry.write(writer);
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writer.seek(strgPad, Athena::Current);
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writer.writeUint32(m_entries.size());
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for (const Entry& entry : m_entries)
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entry.write(writer);
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writer.seek(rshdPad, Athena::Current);
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}
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}
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}
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