text: ﻿//========= Copyright Valve Corporation, All rights reserved. ============//
  //
  // Purpose: 
  //
  // $NoKeywords: $
  //===========================================================================//
  
  #include "matsys_controls/matsyscontrols.h"
  #include <materialsystem/imaterialsystem.h>
  #include <materialsystem/imaterialsystemhardwareconfig.h>
  #include <datacache/imdlcache.h>
  #include <VGuiMatSurface/IMatSystemSurface.h>
  #include <istudiorender.h>
  #include "vgui_controls/Controls.h"
  
  // memdbgon must be the last include file in a .cpp file!!!
  #include "tier0/memdbgon.h"
  
  namespace vgui
  {
  
  IMaterialSystem *g_pMaterialSystem = NULL;
  IMaterialSystem *MaterialSystem()
  {
  	return g_pMaterialSystem;
  }
  
  IMaterialSystemHardwareConfig *g_pMaterialSystemHardwareConfig = NULL;
  IMaterialSystemHardwareConfig *MaterialSystemHardwareConfig()
  {
  	return g_pMaterialSystemHardwareConfig;
  }
  
  IMDLCache *g_pMDLCache = NULL;
  IMDLCache *MDLCache()
  {
  	return g_pMDLCache;
  }
  
  IMatSystemSurface *g_pMatSystemSurface = NULL;
  IMatSystemSurface *MatSystemSurface()
  {
  	return g_pMatSystemSurface;
  }
  
  IStudioRender *g_pStudioRender = NULL;
  IStudioRender *StudioRender()
  {
  	return g_pStudioRender;
  }
  
  
  //-----------------------------------------------------------------------------
  // Purpose: finds a particular interface in the factory set
  //-----------------------------------------------------------------------------
  static void *InitializeInterface( char const *interfaceName, CreateInterfaceFn *factoryList, int numFactories )
  {
  	void *retval;
  
  	for ( int i = 0; i < numFactories; i++ )
  	{
  		CreateInterfaceFn factory = factoryList[ i ];
  		if ( !factory )
  			continue;
  
  		retval = factory( interfaceName, NULL );
  		if ( retval )
  			return retval;
  	}
  
  	// No provider for requested interface!!!
  	// Assert( !"No provider for requested interface!!!" );
  
  	return NULL;
  }
  
  
  //-----------------------------------------------------------------------------
  // Purpose: Initializes the controls
  //-----------------------------------------------------------------------------
  bool VGui_InitMatSysInterfacesList( const char *moduleName, CreateInterfaceFn *factoryList, int numFactories )
  {
  	if ( !vgui::VGui_InitInterfacesList( moduleName, factoryList, numFactories ) )
  		return false;
  
  	g_pMaterialSystem = (IMaterialSystem *)InitializeInterface( MATERIAL_SYSTEM_INTERFACE_VERSION, factoryList, numFactories );
  	g_pMatSystemSurface = (IMatSystemSurface *)InitializeInterface( MAT_SYSTEM_SURFACE_INTERFACE_VERSION, factoryList, numFactories );
  	g_pMDLCache = (IMDLCache *)InitializeInterface( MDLCACHE_INTERFACE_VERSION, factoryList, numFactories );
  	g_pStudioRender = (IStudioRender *)InitializeInterface( STUDIO_RENDER_INTERFACE_VERSION, factoryList, numFactories );
  	g_pMaterialSystemHardwareConfig = (IMaterialSystemHardwareConfig *)InitializeInterface( MATERIALSYSTEM_HARDWARECONFIG_INTERFACE_VERSION, factoryList, numFactories );
  
  	// MDL cache + studiorender are optional
  	return ( g_pMaterialSystem && g_pMatSystemSurface && g_pMaterialSystemHardwareConfig );
  }
  
  
  } // namespace vgui
  
  
  
  