Haiku: Add in public GL kit headers

* These make up the base of what C++ GL Haiku applications
  use for 3D rendering.
* Not placed in includes/GL to prevent Haiku headers from
  getting installed on non-Haiku systems.

Acked-by: Brian Paul <brianp@vmware.com>

include/HaikuGL/GLRenderer.h

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2006, Philippe Houdoin. All rights reserved.
+ * Distributed under the terms of the MIT License.
+
+ * This header defines BGLRenderer, the base class making up
+ * the Haiku GL renderer add-ons (essentially selfcontained C++
+ * shared libraries that do the actual rendering such as
+ * libswpipe.so and libswrast.so)
+ */
+#ifndef GLRENDERER_H
+#define GLRENDERER_H
+
+
+#include <BeBuild.h>
+#include <GLView.h>
+
+
+class BGLDispatcher;
+class GLRendererRoster;
+
+typedef unsigned long renderer_id;
+
+class BGLRenderer
+{
+							// Private unimplemented copy constructors
+							BGLRenderer(const BGLRenderer &);
+							BGLRenderer & operator=(const BGLRenderer &);
+	
+public:
+							BGLRenderer(BGLView *view, ulong bgl_options,
+								BGLDispatcher *dispatcher);
+	virtual					~BGLRenderer();
+
+	void 					Acquire();
+	void					Release();
+
+	virtual void			LockGL();
+	virtual void 			UnlockGL();
+	
+	virtual	void 			SwapBuffers(bool VSync = false);
+	virtual	void			Draw(BRect updateRect);
+	virtual status_t		CopyPixelsOut(BPoint source, BBitmap *dest);
+	virtual status_t    	CopyPixelsIn(BBitmap *source, BPoint dest);
+
+ 	virtual void			FrameResized(float width, float height);
+	
+	virtual void			DirectConnected(direct_buffer_info *info);
+	virtual void			EnableDirectMode(bool enabled);
+
+	inline	int32			ReferenceCount() const { return fRefCount; };
+	inline	ulong			Options() const { return fOptions; };
+	inline	BGLView*		GLView() { return fView; };
+	inline	BGLDispatcher*	GLDispatcher() { return fDispatcher; };
+
+private:
+	friend class GLRendererRoster;
+
+	virtual status_t		_Reserved_Renderer_0(int32, void *);
+	virtual status_t		_Reserved_Renderer_1(int32, void *);
+	virtual status_t		_Reserved_Renderer_2(int32, void *);
+	virtual status_t		_Reserved_Renderer_3(int32, void *);
+	virtual status_t		_Reserved_Renderer_4(int32, void *);
+
+	volatile int32			fRefCount;	// How much we're still usefull?
+	BGLView*				fView;		// Never forget who is the boss!
+	ulong					fOptions;	// Keep that tune in memory
+	BGLDispatcher*			fDispatcher;// Our personal GL API call dispatcher
+
+	GLRendererRoster*		fOwningRoster;
+	renderer_id				fID;
+};
+
+extern "C" _EXPORT BGLRenderer* instantiate_gl_renderer(BGLView *view, ulong options, BGLDispatcher *dispatcher);
+
+
+#endif	// GLRENDERER_H