/*==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==*/
///////////////////////////////////////////////////////////////////////////////
//																			 //
//	plStaticEnvLayer - Static EnvironmentMap MAX Layer						 //
//	Cyan, Inc.																 //
//																			 //
//// Version History //////////////////////////////////////////////////////////
//																			 //
//	8.17.2001 mcn - Created.												 //
//																			 //
///////////////////////////////////////////////////////////////////////////////

#ifndef _plStaticEnvLayer_h
#define _plStaticEnvLayer_h

#include "Max.h"
#include "plPlasmaMAXLayer.h"
#include "../resource.h"

class ClassDesc2;
class IParamBlock2;
class Bitmap;

ClassDesc2* GetStaticEnvLayerDesc();

extern TCHAR *GetString(int id);
extern HINSTANCE hInstance;


//// Class Definition /////////////////////////////////////////////////////////

class plStaticEnvLayer : public plPlasmaMAXLayer
{
protected:
	// Parameter block
	IParamBlock2	*fBitmapPB;
	UVGen			*fUVGen;

	IMtlParams		*fIMtlParams;

	TexHandle *fTexHandle;
	TimeValue fTexTime;

	Bitmap			*fBitmaps[ 6 ];
	Interval		fIValid;
	TCHAR			fBaseFileName[ MAX_PATH ];
   
	friend class SELBitmapDlgProc;


	Matrix3		IGetViewTM( int i );
	int			IWriteBM( BitmapInfo *bi, Bitmap *bm, TCHAR *name );

public:
	// Ref nums
	enum
	{
		kRefUVGen,
		kRefBitmap,
	};

	// Block ID's
	enum
	{
		kBlkBitmap,
	};

	// Faces
	enum
	{
		kFrontFace,
		kBackFace,
		kLeftFace,
		kRightFace,
		kTopFace,
		kBottomFace
	};

	plStaticEnvLayer();
	~plStaticEnvLayer();
	void DeleteThis() { delete this; }		

	//From MtlBase
	ParamDlg* CreateParamDlg(HWND hwMtlEdit, IMtlParams *imp);
	BOOL SetDlgThing(ParamDlg* dlg);
	void Update(TimeValue t, Interval& valid);
	void Reset();
	Interval Validity(TimeValue t);
	ULONG LocalRequirements(int subMtlNum);

	//From Texmap
	RGBA EvalColor(ShadeContext& sc);
	float EvalMono(ShadeContext& sc);
	Point3 EvalNormalPerturb(ShadeContext& sc);

	// For displaying textures in the viewport
	BOOL SupportTexDisplay() { return TRUE; }
	void ActivateTexDisplay(BOOL onoff);
	BITMAPINFO *GetVPDisplayDIB(TimeValue t, TexHandleMaker& thmaker, Interval &valid, BOOL mono=FALSE, int forceW=0, int forceH=0);
	DWORD GetActiveTexHandle(TimeValue t, TexHandleMaker& thmaker);
protected:
	void IChanged();
	void IDiscardTexHandle();

public:
	void GetUVTransform(Matrix3 &uvtrans) { fUVGen->GetUVTransform(uvtrans); }
	int GetTextureTiling() { return  fUVGen->GetTextureTiling(); }
	int GetUVWSource() { return fUVGen->GetUVWSource(); }
	virtual int GetMapChannel () { return fUVGen->GetMapChannel(); }	// only relevant if above returns UVWSRC_EXPLICIT
	UVGen *GetTheUVGen() { return fUVGen; }
	
	//TODO: Return anim index to reference index
	int SubNumToRefNum(int subNum) { return subNum; }
	
	
	// Loading/Saving
	IOResult Load(ILoad *iload);
	IOResult Save(ISave *isave);

	//From Animatable
	Class_ID ClassID() { return STATIC_ENV_LAYER_CLASS_ID; }		
	SClass_ID SuperClassID() { return TEXMAP_CLASS_ID; }
	void GetClassName(TSTR& s) { s = GetString(IDS_STATIC_ENVMAP_LAYER); }

	RefTargetHandle Clone( RemapDir &remap );
	RefResult NotifyRefChanged(Interval changeInt, RefTargetHandle hTarget, 
		PartID& partID,  RefMessage message);

	int NumSubs();
	Animatable* SubAnim(int i); 
	TSTR SubAnimName(int i);

	// TODO: Maintain the number or references here 
	int NumRefs();
	RefTargetHandle GetReference(int i);
	void SetReference(int i, RefTargetHandle rtarg);

	int	NumParamBlocks();	// return number of ParamBlocks in this instance
	IParamBlock2* GetParamBlock(int i); // return i'th ParamBlock
	IParamBlock2* GetParamBlockByID(BlockID id); // return id'd ParamBlock

	const char *GetTextureName( int which );

	void		SetBaseFilename( const TCHAR *name, TimeValue t );
	const TCHAR	*GetBaseFilename( TimeValue t );

	void	RenderCubicMap( INode *node );


	/// ParamBlock accessors
	enum
	{
		kScalingAny,
		kScalingHalf,
		kScalingNone
	};

	// Param ID's
	enum
	{
		kBmpFrontBitmap,
		kBmpBackBitmap,
		kBmpLeftBitmap,
		kBmpRightBitmap,
		kBmpTopBitmap,
		kBmpBottomBitmap,

		// Misc
		kBmpDiscardColor,
		kBmpInvertColor,
		kBmpDiscardAlpha,
		kBmpInvertAlpha,

		// Texture quality
		kBmpNonCompressed,
		kBmpScaling,

		// Max only
		kBmpMonoOutput,
		kBmpRGBOutput,

		// Detail
		kBmpUseDetail,
		kBmpDetailStartSize,
		kBmpDetailStopSize,
		kBmpDetailStartOpac,
		kBmpDetailStopOpac,

		// Texture generation
		kBmpBaseFilename,
		kBmpTextureSize,
		kBmpGenerateFaces,
		kBmpLastTextureSize,		// Annoying, but necessary to clamp texture sizes to powers of 2
		kBmpUseMAXAtmosphere,
		kBmpFarDistance,

		// Just a hack to simulate refraction instead of reflection
		kBmpRefract
	};

		// Pure virtual accessors for the various bitmap related elements
		virtual Bitmap *GetMaxBitmap(int index = 0) { return fBitmaps[ index ]; }
		virtual PBBitmap *GetPBBitmap( int index = 0 );
		virtual int		GetNumBitmaps( void ) { return 6; }

	protected:
		virtual void ISetMaxBitmap(Bitmap *bitmap, int index = 0) { fBitmaps[ index ] = bitmap; }
		virtual void ISetPBBitmap( PBBitmap *pbbm, int index = 0 );


};

#endif // _plStaticEnvLayer_h