96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef SAVERESTORE_BITSTRING_H
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#define SAVERESTORE_BITSTRING_H
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#include "isaverestore.h"
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#if defined( _WIN32 )
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#pragma once
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#endif
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//-------------------------------------
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template <class BITSTRING>
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class CVarBitVecSaveRestoreOps : public CDefSaveRestoreOps
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{
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public:
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CVarBitVecSaveRestoreOps()
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{
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}
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// save data type interface
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virtual void Save( const SaveRestoreFieldInfo_t &fieldInfo, ISave *pSave )
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{
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BITSTRING *pBitString = (BITSTRING *)fieldInfo.pField;
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int numBits = pBitString->GetNumBits();
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pSave->WriteInt( &numBits );
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pSave->WriteInt( pBitString->Base(), pBitString->GetNumDWords() );
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}
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virtual void Restore( const SaveRestoreFieldInfo_t &fieldInfo, IRestore *pRestore )
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{
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BITSTRING *pBitString = (BITSTRING *)fieldInfo.pField;
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int numBits = pRestore->ReadInt();
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if ( !pBitString->IsFixedSize() )
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pBitString->Resize( numBits );
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else
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{
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Assert( pBitString->GetNumBits() >= numBits );
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pBitString->ClearAll();
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}
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int numIntsInStream = CalcNumIntsForBits( numBits );
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int readSize = MIN( pBitString->GetNumDWords(), numIntsInStream );
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pRestore->ReadInt( pBitString->Base(), numIntsInStream );
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numIntsInStream -= readSize;
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while ( numIntsInStream-- > 0 )
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{
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int ignored;
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pRestore->ReadInt( &ignored, 1 );
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}
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}
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virtual void MakeEmpty( const SaveRestoreFieldInfo_t &fieldInfo )
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{
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BITSTRING *pBitString = (BITSTRING *)fieldInfo.pField;
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pBitString->ClearAll();
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}
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virtual bool IsEmpty( const SaveRestoreFieldInfo_t &fieldInfo )
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{
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BITSTRING *pBitString = (BITSTRING *)fieldInfo.pField;
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return pBitString->IsAllClear();
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}
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};
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//-------------------------------------
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template <class BITSTRING>
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ISaveRestoreOps *GetBitstringDataOps(BITSTRING *)
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{
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static CVarBitVecSaveRestoreOps<BITSTRING> ops;
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return &ops;
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}
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//-------------------------------------
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#define SaveBitString( pSave, pBitString, fieldtype) \
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CDataopsInstantiator<fieldtype>::GetDataOps( pBitString )->Save( pBitString, pSave );
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#define RestoreBitString( pRestore, pBitString, fieldtype) \
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CDataopsInstantiator<fieldtype>::GetDataOps( pBitString )->Restore( pBitString, pRestore );
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//-------------------------------------
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#define DEFINE_BITSTRING(name) \
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{ FIELD_CUSTOM, #name, offsetof(classNameTypedef,name), 1, FTYPEDESC_SAVE, NULL, GetBitstringDataOps(&(((classNameTypedef *)0)->name)), NULL }
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#endif // SAVERESTORE_BITSTRING_H
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