mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-22 14:16:50 +00:00
338 lines
8.7 KiB
C++
338 lines
8.7 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#ifndef DATATABLE_STACK_H
|
|
#define DATATABLE_STACK_H
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
|
|
#include "dt.h"
|
|
#include "dt_recv_decoder.h"
|
|
|
|
|
|
class CSendNode;
|
|
static CSendProxyRecipients s_Recipients; // avoid calling constructor each time
|
|
|
|
|
|
// ----------------------------------------------------------------------------- //
|
|
//
|
|
// CDatatableStack
|
|
//
|
|
// CDatatableStack is used to walk through a datatable's tree, calling proxies
|
|
// along the way to update the current data pointer.
|
|
//
|
|
// ----------------------------------------------------------------------------- //
|
|
|
|
abstract_class CDatatableStack
|
|
{
|
|
public:
|
|
|
|
CDatatableStack( CSendTablePrecalc *pPrecalc, unsigned char *pStructBase, int objectID );
|
|
|
|
// This must be called before accessing properties.
|
|
void Init( bool bExplicitRoutes=false );
|
|
|
|
// The stack is meant to be used by calling SeekToProp with increasing property
|
|
// numbers.
|
|
void SeekToProp( int iProp );
|
|
|
|
bool IsCurProxyValid() const;
|
|
bool IsPropProxyValid(int iProp ) const;
|
|
int GetCurPropIndex() const;
|
|
|
|
unsigned char* GetCurStructBase() const;
|
|
|
|
int GetObjectID() const;
|
|
|
|
// Derived classes must implement this. The server gets one and the client gets one.
|
|
// It calls the proxy to move to the next datatable's data.
|
|
virtual void RecurseAndCallProxies( CSendNode *pNode, unsigned char *pStructBase ) = 0;
|
|
|
|
|
|
public:
|
|
CSendTablePrecalc *m_pPrecalc;
|
|
|
|
enum
|
|
{
|
|
MAX_PROXY_RESULTS = 256
|
|
};
|
|
|
|
// These point at the various values that the proxies returned. They are setup once, then
|
|
// the properties index them.
|
|
unsigned char *m_pProxies[MAX_PROXY_RESULTS];
|
|
unsigned char *m_pStructBase;
|
|
int m_iCurProp;
|
|
|
|
protected:
|
|
|
|
const SendProp *m_pCurProp;
|
|
|
|
int m_ObjectID;
|
|
|
|
bool m_bInitted;
|
|
};
|
|
|
|
inline bool CDatatableStack::IsPropProxyValid(int iProp ) const
|
|
{
|
|
return m_pProxies[m_pPrecalc->m_PropProxyIndices[iProp]] != 0;
|
|
}
|
|
|
|
inline bool CDatatableStack::IsCurProxyValid() const
|
|
{
|
|
return m_pProxies[m_pPrecalc->m_PropProxyIndices[m_iCurProp]] != 0;
|
|
}
|
|
|
|
inline int CDatatableStack::GetCurPropIndex() const
|
|
{
|
|
return m_iCurProp;
|
|
}
|
|
|
|
inline unsigned char* CDatatableStack::GetCurStructBase() const
|
|
{
|
|
return m_pProxies[m_pPrecalc->m_PropProxyIndices[m_iCurProp]];
|
|
}
|
|
|
|
inline void CDatatableStack::SeekToProp( int iProp )
|
|
{
|
|
Assert( m_bInitted );
|
|
|
|
m_iCurProp = iProp;
|
|
m_pCurProp = m_pPrecalc->GetProp( iProp );
|
|
}
|
|
|
|
inline int CDatatableStack::GetObjectID() const
|
|
{
|
|
return m_ObjectID;
|
|
}
|
|
|
|
|
|
// This can be used IF you called Init() with true for bExplicitRoutes.
|
|
// It is faster to use this route if you only are going to ask for a couple props.
|
|
// If you're going to ask for all the props, then you shouldn't use the "explicit" route.
|
|
template< class DTStack, class ProxyCaller >
|
|
inline unsigned char* UpdateRoutesExplicit_Template( DTStack *pStack, ProxyCaller *caller )
|
|
{
|
|
// Early out.
|
|
unsigned short iPropProxyIndex = pStack->m_pPrecalc->m_PropProxyIndices[pStack->m_iCurProp];
|
|
unsigned char **pTest = &pStack->m_pProxies[iPropProxyIndex];
|
|
if ( *pTest != (unsigned char*)-1 )
|
|
return *pTest;
|
|
|
|
// Ok.. setup this proxy.
|
|
unsigned char *pStructBase = pStack->m_pStructBase;
|
|
|
|
CSendTablePrecalc::CProxyPath &proxyPath = pStack->m_pPrecalc->m_ProxyPaths[iPropProxyIndex];
|
|
for ( unsigned short i=0; i < proxyPath.m_nEntries; i++ )
|
|
{
|
|
CSendTablePrecalc::CProxyPathEntry *pEntry = &pStack->m_pPrecalc->m_ProxyPathEntries[proxyPath.m_iFirstEntry + i];
|
|
int iProxy = pEntry->m_iProxy;
|
|
|
|
if ( pStack->m_pProxies[iProxy] == (unsigned char*)-1 )
|
|
{
|
|
pStack->m_pProxies[iProxy] = ProxyCaller::CallProxy( pStack, pStructBase, pEntry->m_iDatatableProp );
|
|
if ( !pStack->m_pProxies[iProxy] )
|
|
{
|
|
*pTest = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
pStructBase = pStack->m_pProxies[iProxy];
|
|
}
|
|
|
|
return pStructBase;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------------------------ //
|
|
// The datatable stack for a RecvTable.
|
|
// ------------------------------------------------------------------------------------ //
|
|
class CClientDatatableStack : public CDatatableStack
|
|
{
|
|
public:
|
|
CClientDatatableStack( CRecvDecoder *pDecoder, unsigned char *pStructBase, int objectID ) :
|
|
CDatatableStack( &pDecoder->m_Precalc, pStructBase, objectID )
|
|
{
|
|
m_pDecoder = pDecoder;
|
|
}
|
|
|
|
inline unsigned char* CallPropProxy( CSendNode *pNode, int iProp, unsigned char *pStructBase )
|
|
{
|
|
const RecvProp *pProp = m_pDecoder->GetDatatableProp( iProp );
|
|
|
|
void *pVal = NULL;
|
|
|
|
Assert( pProp );
|
|
|
|
// We may crash later for doing this, but at least this will allow users to watch their demos
|
|
if ( !pProp )
|
|
return NULL;
|
|
|
|
pProp->GetDataTableProxyFn()(
|
|
pProp,
|
|
&pVal,
|
|
pStructBase + pProp->GetOffset(),
|
|
GetObjectID()
|
|
);
|
|
|
|
return (unsigned char*)pVal;
|
|
}
|
|
|
|
virtual void RecurseAndCallProxies( CSendNode *pNode, unsigned char *pStructBase )
|
|
{
|
|
// Remember where the game code pointed us for this datatable's data so
|
|
m_pProxies[pNode->GetRecursiveProxyIndex()] = pStructBase;
|
|
|
|
for ( int iChild=0; iChild < pNode->GetNumChildren(); iChild++ )
|
|
{
|
|
CSendNode *pCurChild = pNode->GetChild( iChild );
|
|
|
|
unsigned char *pNewStructBase = NULL;
|
|
if ( pStructBase )
|
|
{
|
|
pNewStructBase = CallPropProxy( pCurChild, pCurChild->m_iDatatableProp, pStructBase );
|
|
}
|
|
|
|
RecurseAndCallProxies( pCurChild, pNewStructBase );
|
|
}
|
|
}
|
|
|
|
class CRecvProxyCaller
|
|
{
|
|
public:
|
|
static inline unsigned char* CallProxy( CClientDatatableStack *pStack, unsigned char *pStructBase, unsigned short iDatatableProp )
|
|
{
|
|
const RecvProp *pProp = pStack->m_pDecoder->GetDatatableProp( iDatatableProp );
|
|
|
|
void *pVal = NULL;
|
|
pProp->GetDataTableProxyFn()(
|
|
pProp,
|
|
&pVal,
|
|
pStructBase + pProp->GetOffset(),
|
|
pStack->m_ObjectID
|
|
);
|
|
|
|
return (unsigned char*)pVal;
|
|
}
|
|
};
|
|
|
|
inline unsigned char* UpdateRoutesExplicit()
|
|
{
|
|
return UpdateRoutesExplicit_Template( this, (CRecvProxyCaller*)NULL );
|
|
}
|
|
|
|
|
|
public:
|
|
|
|
CRecvDecoder *m_pDecoder;
|
|
};
|
|
|
|
|
|
class CServerDatatableStack : public CDatatableStack
|
|
{
|
|
public:
|
|
CServerDatatableStack( CSendTablePrecalc *pPrecalc, unsigned char *pStructBase, int objectID ) :
|
|
CDatatableStack( pPrecalc, pStructBase, objectID )
|
|
{
|
|
m_pPrecalc = pPrecalc;
|
|
m_pRecipients = NULL;
|
|
}
|
|
|
|
inline unsigned char* CallPropProxy( CSendNode *pNode, int iProp, unsigned char *pStructBase )
|
|
{
|
|
const SendProp *pProp = m_pPrecalc->GetDatatableProp( iProp );
|
|
|
|
CSendProxyRecipients *pRecipients;
|
|
|
|
if ( m_pRecipients && pNode->GetDataTableProxyIndex() != DATATABLE_PROXY_INDEX_NOPROXY )
|
|
{
|
|
// set recipients pointer and all clients by default
|
|
pRecipients = &m_pRecipients->Element( pNode->GetDataTableProxyIndex() );
|
|
pRecipients->SetAllRecipients();
|
|
}
|
|
else
|
|
{
|
|
// we don't care about recipients, just provide a valid pointer
|
|
pRecipients = &s_Recipients;
|
|
}
|
|
|
|
unsigned char *pRet = (unsigned char*)pProp->GetDataTableProxyFn()(
|
|
pProp,
|
|
pStructBase,
|
|
pStructBase + pProp->GetOffset(),
|
|
pRecipients,
|
|
GetObjectID()
|
|
);
|
|
|
|
return pRet;
|
|
}
|
|
|
|
virtual void RecurseAndCallProxies( CSendNode *pNode, unsigned char *pStructBase )
|
|
{
|
|
// Remember where the game code pointed us for this datatable's data so
|
|
m_pProxies[pNode->GetRecursiveProxyIndex()] = pStructBase;
|
|
|
|
for ( int iChild=0; iChild < pNode->GetNumChildren(); iChild++ )
|
|
{
|
|
CSendNode *pCurChild = pNode->GetChild( iChild );
|
|
|
|
unsigned char *pNewStructBase = NULL;
|
|
if ( pStructBase )
|
|
{
|
|
pNewStructBase = CallPropProxy( pCurChild, pCurChild->m_iDatatableProp, pStructBase );
|
|
}
|
|
|
|
RecurseAndCallProxies( pCurChild, pNewStructBase );
|
|
}
|
|
}
|
|
|
|
// This can be used IF you called Init() with true for bExplicitRoutes.
|
|
// It is faster to use this route if you only are going to ask for a couple props.
|
|
// If you're going to ask for all the props, then you shouldn't use the "explicit" route.
|
|
class CSendProxyCaller
|
|
{
|
|
public:
|
|
static inline unsigned char* CallProxy( CServerDatatableStack *pStack, unsigned char *pStructBase, unsigned short iDatatableProp )
|
|
{
|
|
const SendProp *pProp = pStack->m_pPrecalc->GetDatatableProp( iDatatableProp );
|
|
|
|
return (unsigned char*)pProp->GetDataTableProxyFn()(
|
|
pProp,
|
|
pStructBase,
|
|
pStructBase + pProp->GetOffset(),
|
|
&s_Recipients,
|
|
pStack->GetObjectID()
|
|
);
|
|
}
|
|
};
|
|
|
|
inline unsigned char* UpdateRoutesExplicit()
|
|
{
|
|
return UpdateRoutesExplicit_Template( this, (CSendProxyCaller*)NULL );
|
|
}
|
|
|
|
|
|
const SendProp* GetCurProp() const;
|
|
|
|
|
|
public:
|
|
|
|
CSendTablePrecalc *m_pPrecalc;
|
|
CUtlMemory<CSendProxyRecipients> *m_pRecipients;
|
|
};
|
|
|
|
|
|
inline const SendProp* CServerDatatableStack::GetCurProp() const
|
|
{
|
|
return m_pPrecalc->GetProp( GetCurPropIndex() );
|
|
}
|
|
|
|
|
|
#endif // DATATABLE_STACK_H
|