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game/client/cl_mat_stub.cpp

@@ -0,0 +1,74 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//===========================================================================//
+
+#include "cbase.h"
+#include "bitmap/imageformat.h"
+#include "cl_mat_stub.h"
+#include "materialsystem/imaterialsystemstub.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+// Hook the engine's mat_stub cvar.
+ConVar mat_stub( "mat_stub", "0", FCVAR_CHEAT );
+extern ConVar gl_clear;
+
+
+IMaterialSystemStub* GetStubMaterialSystem()
+{
+	return materials_stub;
+}
+
+// ---------------------------------------------------------------------------------------- //
+// CMatStubHandler implementation.
+// ---------------------------------------------------------------------------------------- //
+
+CMatStubHandler::CMatStubHandler()
+{
+	if ( mat_stub.GetInt() )
+	{
+		m_pOldMaterialSystem = materials;
+
+		// Replace all material system pointers with the stub.
+		GetStubMaterialSystem()->SetRealMaterialSystem( materials );
+		materials->SetInStubMode( true );
+		materials = GetStubMaterialSystem();
+		engine->Mat_Stub( materials );
+	}
+	else
+	{
+		m_pOldMaterialSystem = 0;
+	}
+}
+
+
+CMatStubHandler::~CMatStubHandler()
+{
+	End();
+}
+
+
+void CMatStubHandler::End()
+{
+	// Put back the original material system pointer.
+	if ( m_pOldMaterialSystem )
+	{
+		materials = m_pOldMaterialSystem;
+		materials->SetInStubMode( false );
+		engine->Mat_Stub( materials );
+		m_pOldMaterialSystem = 0;
+//		if( gl_clear.GetBool() )
+		{
+			materials->ClearBuffers( true, true );
+		}
+	}
+}
+
+
+bool IsMatStubEnabled()
+{
+	return mat_stub.GetBool();
+}