#pragma once

// shadow용 ViewPort

#include "SViewPort.h"
#include <toolkit/XFlag.h>
#include <dump/XException.h>
#include "KRenderObject.h"

#include "KSortVector.h"

class K3DVertexBuffer;
class KMeshPrimitive;

class SShadowViewPort : public SViewPort, public SRenderTargetContainer
{
public:
	static float SHADOW_RATIO;

	SShadowViewPort( bool bClearColorBuffer = true, bool bClearDepthBuffer = true );
	virtual ~SShadowViewPort();

	virtual void Initilaize( K3DRenderDevice *dev, const KViewportStruct &viewarea, float nearClip, float farClip );

	virtual void SetCamera( const K3DCamera *cam );
	virtual void Register( K3DPrimitive *pr, DWORD flag );
	virtual void ClearRegisteredList();

	virtual void Render( bool bClearRegister = true, bool bSetRenderTarget = true );

	virtual K3DRenderTarget * GetRenderTarget(int index, void* pr);

	void SetShadowBottomHeight(float height);
	float GetShadowBottomHeight()		{ return m_fShadowBottomHeight; }
	K3DVector GetShadowBase()
	{
		return K3DVector(GetCameraTargetPos().x - SHADOW_RATIO/2,
						 GetCameraTargetPos().y - SHADOW_RATIO/2,
						 GetShadowBottomHeight());
	}
	bool IsShadowValid()				{ return m_bIsValid; }

	//void SetUseSpecular( bool bUseSpecular );
	//void SetUseShadowBuffer( bool bUseShadowBuffer) { m_bUseShadowBuffer = bUseShadowBuffer; }
	void SetShadowBufferQuality(int nQuality);
	void SetShadowMapQuality(int nQuality);
	void SetJitterMapQuality(int nQuality);

	void ClearAllShadowMap();
	void ReCreateAllShadowMap();
#ifndef NDEBUG
	void SetDebugMode( bool bDebugMode ) { m_bDebugMode = bDebugMode; }
#endif

	//void SetGameViewport( SViewPort* pViewport) { m_pGameViewport = pViewport; }
	int GetShadowBufferQuality();

protected:

	void DrawObjectAsShadowBuffer( KSortVector< RENDER_MESHEX > & vList );
	void DrawObjectAsShadow( KSortVector< RENDER_MESHEX > & vList );

	KSortVector< RENDER_MESHEX > m_vRenderList;

	float				m_fShadowBottomHeight;

	bool RenderShadowMap();
	bool RenderShadowBuffer();

	bool									m_bIsValid;

	//////////////////////////////////////////////////////////////////////////
	//쉐도우 맵 관련

	K3DVector			m_vCameraTargetPos_Backup;

	void UpdateMatrices(void);

	//Shadow====================================
	K3DRenderTargetSPtr	m_spShadowMap;
	K3DRenderTargetSPtr	m_spShadowJitterMap;
	K3DRenderTargetSPtr	m_spShadowBuffer;

#ifndef NDEBUG
	bool				m_bDebugMode;
#endif

	//Test 용===================================

	K3DVertexBufferSPtr m_spShadowVB;
	int				  m_nShadowStride;

	//bool			m_bUseShadowBuffer;
	int				m_nShadowBufferQuality;
	int				m_nShadowMapQuality;
	int				m_nJitterMapQuality;

	//SViewPort*		m_pGameViewport;
};