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hammer/ibsplightingthread.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef IBSPLIGHTING_THREAD_H
+#define IBSPLIGHTING_THREAD_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+#include "ivraddll.h"
+
+
+class IBSPLightingThread
+{
+public:
+	enum
+	{
+		STATE_IDLE=0,
+		STATE_LIGHTING=1,
+		STATE_FINISHED=2
+	};
+
+	virtual				~IBSPLightingThread() {}	
+
+	virtual void		Release() = 0;
+
+	// Start processing light in the background thread. 
+	//
+	// Goes to STATE_LIGHTING, then if it's successful, it goes to STATE_FINISHED.
+	// If unsuccessful or interrupted, it goes to STATE_IDLE.
+	//
+	// If this is called while it's already lighting, it stops the current lighting
+	// process and restarts.
+	virtual void		StartLighting( char const *pVMFFileWithEntities ) = 0;
+
+	// Returns one of the STATE_ defines.
+	virtual int			GetCurrentState() = 0;
+
+	// If lighting is in progress, make it stop.
+	virtual void		Interrupt() = 0;
+
+	// Returns IVRadDLL::GetPercentComplete if it's lighting.
+	virtual float		GetPercentComplete() = 0;
+};
+
+IBSPLightingThread* CreateBSPLightingThread( IVRadDLL *pDLL );
+
+
+#endif // IBSPLIGHTING_THREAD_H