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hammer/ibsplighting.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef IBSPLIGHTING_H
+#define IBSPLIGHTING_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+class IBSPLighting
+{
+public:
+		
+	virtual					~IBSPLighting() {}
+	virtual void			Release() = 0;
+
+	// Init for incremental lighting.
+	// - load the VRAD DLL
+	// - load the BSP file into it
+	// - start the incremental lighting thread
+	// - start lighting in the background if need be
+	virtual bool			Load( char const *pFilename ) = 0;
+	
+	// Shutdown everything (but keep the object around).
+	virtual void			Term() = 0;
+
+	// Serialize the r0 and bsp files if any new lighting has been completed.
+	// Note: this will return false if a lighting pass is currently in progress
+	//       (don't worry though - Term() will stop an active lighting pass and
+	//       serialize the lighting).
+	virtual bool			Serialize() = 0;
+
+	// Start lighting in the background thread using the current state of the
+	// entities in the editor's memory.
+	virtual void			StartLighting( char const *pVMFFileWithEnts ) = 0;
+
+	// Returns a 0-1 value describing how far along the lighting is, or -1 if not lighting.
+	virtual float			GetPercentComplete() = 0;
+
+	// Stop the lighting process.
+	virtual void			Interrupt() = 0;
+
+	// This should be called during idle time. If it returns true, then it has
+	// update all the lightmaps and the views should be redrawn.
+	virtual bool			CheckForNewLightmaps() = 0;
+
+	// Render the current lightmaps.	
+	virtual void			Draw() = 0;
+};
+
+IBSPLighting* CreateBSPLighting();
+
+
+#endif // IBSPLIGHTING_H