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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: A higher level link library for general use in the game and tools.
//
//===========================================================================//
#ifndef TIER3_H
#define TIER3_H
#if defined( _WIN32 )
#pragma once
#endif
#include "tier2/tier2.h"
//-----------------------------------------------------------------------------
// Forward declarations
//-----------------------------------------------------------------------------
class IStudioRender;
class IMatSystemSurface;
class IDataCache;
class IMDLCache;
class IVideoServices;
class IDmeMakefileUtils;
class IPhysicsCollision;
class ISoundEmitterSystemBase;
class IVTex;
namespace vgui
{
class ISurface;
class IVGui;
class IInput;
class IPanel;
class ILocalize;
class ISchemeManager;
class ISystem;
}
//-----------------------------------------------------------------------------
// These tier3 libraries must be set by any users of this library.
// They can be set by calling ConnectTier3Libraries.
// It is hoped that setting this, and using this library will be the common mechanism for
// allowing link libraries to access tier3 library interfaces
//-----------------------------------------------------------------------------
extern IStudioRender *g_pStudioRender;
extern IStudioRender *studiorender;
extern IMatSystemSurface *g_pMatSystemSurface;
extern vgui::ISurface *g_pVGuiSurface;
extern vgui::IInput *g_pVGuiInput;
extern vgui::IVGui *g_pVGui;
extern vgui::IPanel *g_pVGuiPanel;
extern vgui::ILocalize *g_pVGuiLocalize;
extern vgui::ISchemeManager *g_pVGuiSchemeManager;
extern vgui::ISystem *g_pVGuiSystem;
extern IDataCache *g_pDataCache; // FIXME: Should IDataCache be in tier2?
extern IMDLCache *g_pMDLCache;
extern IMDLCache *mdlcache;
extern IVideoServices *g_pVideo;
extern IDmeMakefileUtils *g_pDmeMakefileUtils;
extern IPhysicsCollision *g_pPhysicsCollision;
extern ISoundEmitterSystemBase *g_pSoundEmitterSystem;
extern IVTex *g_pVTex;
//-----------------------------------------------------------------------------
// Call this to connect to/disconnect from all tier 3 libraries.
// It's up to the caller to check the globals it cares about to see if ones are missing
//-----------------------------------------------------------------------------
void ConnectTier3Libraries( CreateInterfaceFn *pFactoryList, int nFactoryCount );
void DisconnectTier3Libraries();
//-----------------------------------------------------------------------------
// Helper empty implementation of an IAppSystem for tier2 libraries
//-----------------------------------------------------------------------------
template< class IInterface, int ConVarFlag = 0 >
class CTier3AppSystem : public CTier2AppSystem< IInterface, ConVarFlag >
{
typedef CTier2AppSystem< IInterface, ConVarFlag > BaseClass;
public:
CTier3AppSystem( bool bIsPrimaryAppSystem = true ) : BaseClass( bIsPrimaryAppSystem )
{
}
virtual bool Connect( CreateInterfaceFn factory )
{
if ( !BaseClass::Connect( factory ) )
return false;
if ( BaseClass::IsPrimaryAppSystem() )
{
ConnectTier3Libraries( &factory, 1 );
}
return true;
}
virtual void Disconnect()
{
if ( BaseClass::IsPrimaryAppSystem() )
{
DisconnectTier3Libraries();
}
BaseClass::Disconnect();
}
};
#endif // TIER3_H
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