Enderal SE
https://mod.pub/enderal-se/38-enderal-se
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102 lines
1.7 KiB
102 lines
1.7 KiB
#include "IArchive.h"
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#include "IErrors.h"
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#if ENABLE_IDYNAMICCREATE
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IDynamic * IArchive::iterator::Instantiate(void)
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{
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IDataSubStream subStream(owner->theStream, GetDataOffset(), GetDataLength());
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return IClassRegistry::Instantiate(GetTypeID(), &subStream);
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}
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void * IArchive::iterator::GetBuffer(UInt32 * outLength)
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{
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HeaderEntry * entry = GetData();
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UInt8 * buf = new UInt8[entry->dataLength];
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owner->theStream->SetOffset(entry->dataOffset);
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owner->theStream->ReadBuf(buf, entry->dataLength);
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if(outLength)
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*outLength = entry->dataLength;
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return buf;
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}
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void IArchive::iterator::NextOfType(UInt32 typeID)
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{
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idx++;
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while((GetData()->typeID != typeID) && (idx < owner->header.numEntries))
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idx++;
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}
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void IArchive::iterator::PrevOfType(UInt32 typeID)
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{
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idx--;
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while((GetData()->typeID != typeID) && (idx > 0))
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idx--;
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}
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IArchive::IArchive()
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:theStream(NULL), entries(NULL), nameTable(NULL)
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{
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}
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IArchive::IArchive(IDataStream * stream)
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:theStream(NULL), entries(NULL), nameTable(NULL)
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{
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AttachStream(stream);
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}
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IArchive::~IArchive()
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{
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Dispose();
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}
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void IArchive::AttachStream(IDataStream * inStream)
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{
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Dispose();
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theStream = inStream;
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}
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void IArchive::Dispose(void)
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{
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if(entries)
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{
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delete entries;
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entries = NULL;
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}
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if(nameTable)
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{
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delete nameTable;
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nameTable = NULL;
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}
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}
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void IArchive::ReadHeader(void)
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{
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ASSERT(theStream);
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theStream->Rewind();
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theStream->ReadBuf(&header, sizeof(FileHeader));
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entries = new HeaderEntry[header.numEntries];
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theStream->ReadBuf(entries, header.numEntries * sizeof(HeaderEntry));
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if(header.nameTableLength)
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{
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nameTable = new char[header.nameTableLength];
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theStream->SetOffset(header.nameTableOffset);
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theStream->ReadBuf(nameTable, header.nameTableLength);
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}
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}
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#endif
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