/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/

#ifndef plPostEffectMod_inc
#define plPostEffectMod_inc

#include "../pnModifier/plSingleModifier.h"

#include "hsMatrix44.h"
#include "hsBitVector.h"

class plSceneNode;
class plPageTreeMgr;
class plMessage;
class plRenderTarget;
class plRenderRequest;
class plViewTransform;

class plPostEffectMod : public plSingleModifier
{
public:
	enum plPostEffectModStates {
		kEnabled = 0
	};

	enum {
		kNodeRef = 0x0
	};
protected:

	hsBitVector				fState;

	hsScalar				fHither;
	hsScalar				fYon;

	hsScalar				fFovX;
	hsScalar				fFovY;

	plKey					fNodeKey;
	plPageTreeMgr*			fPageMgr;

	plRenderTarget*			fRenderTarget;
	plRenderRequest*		fRenderRequest;

	hsMatrix44				fDefaultW2C, fDefaultC2W;


	virtual hsBool IEval(double secs, hsScalar del, UInt32 dirty); // called only by owner object's Eval()

	void			ISetupRenderRequest();
	void			IDestroyRenderRequest();
	void			IUpdateRenderRequest();

	void			IRegisterForRenderMsg(hsBool on);
	void			ISubmitRequest();

	void			IAddToPageMgr(plSceneNode* node);
	void			IRemoveFromPageMgr(plSceneNode* node);

	void			ISetEnable(hsBool on);
	hsBool			IIsEnabled() const;

public:
	plPostEffectMod();
	virtual ~plPostEffectMod();

	CLASSNAME_REGISTER( plPostEffectMod );
	GETINTERFACE_ANY( plPostEffectMod, plSingleModifier );


	virtual hsBool	MsgReceive(plMessage* pMsg);
	
	virtual void Read(hsStream* s, hsResMgr* mgr);
	virtual void Write(hsStream* s, hsResMgr* mgr);

	void		GetDefaultWorldToCamera( hsMatrix44 &w2c, hsMatrix44 &c2w );

	// Export only
	void		SetNodeKey(plKey key) { fNodeKey = key; }
	plKey		GetNodeKey() const { return fNodeKey; }

	void		SetHither(hsScalar h) { fHither = h; }
	void		SetYon(hsScalar y) { fYon = y; }
	void		SetFovX(hsScalar f) { fFovX = f; }
	void		SetFovY(hsScalar f) { fFovY = f; }

	hsScalar	GetHither() const { return fHither; }
	hsScalar	GetYon() const { return fYon; }
	hsScalar	GetFovX() const { return fFovX; }
	hsScalar	GetFovY() const { return fFovY; }

	plPageTreeMgr* GetPageMgr() const { return fPageMgr; }

	const plViewTransform& GetViewTransform();

	// If translating from a scene object, send WorldToLocal() and LocalToWorld(), in that order
	void		SetWorldToCamera( hsMatrix44 &w2c, hsMatrix44 &c2w );

	// Very bad
	void		EnableLightsOnRenderRequest( void );
};

#endif // plPostEffectMod_inc