CWE-ou-minkata/Sources/Plasma/PubUtilLib/plPipeline/hsG3DDeviceSelector.h

/*==LICENSE==*

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Copyright (C) 2011 Cyan Worlds, Inc.

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*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
//																			 //
//	hsG3DDeviceSelector Class Header             							 //
//	Generic device enumeration (D3D, OpenGL, etc)							 //
//	Cyan, Inc.																 //
//																			 //
//// Version History //////////////////////////////////////////////////////////
//																			 //
//	5.21.2001 mcn - Cleaned out all the old Glide stuff, since Plasma2 will	 //
//					not support Glide :(       								 //
//																			 //
///////////////////////////////////////////////////////////////////////////////

#ifndef hsG3DDeviceSelector_inc
#define hsG3DDeviceSelector_inc

#include "hsWinRef.h"

#include "hsTemplates.h"
#include "hsBitVector.h"

#ifdef HS_BUILD_FOR_WIN32
#define HS_SELECT_DIRECT3D // not supported on the Mac.
#endif // HS_BUILD_FOR_WIN32

#ifdef HS_BUILD_FOR_WIN32
#define __MSC__
#define DYNAHEADER 1
#endif // HS_BUILD_FOR_WIN32


class hsStream;
struct D3DEnum_DeviceInfo;
struct D3DEnum_DriverInfo;
struct D3DEnum_DeviceInfo;
struct D3DEnum_DriverInfo;

class hsG3DDeviceMode
{
	enum {
		kNone			= 0x0,
		kDiscarded		= 0x1
	};
protected:
	UInt32				fFlags;

	UInt32				fWidth;
	UInt32				fHeight;
	UInt32				fDepth;

	hsTArray<UInt16>	fZStencilDepths;	// Array of supported depth/stencil buffer formats.
											// Each entry is of the form: ( stencil bit count << 8 ) | ( depth bit count )
	hsTArray<UInt8>		fFSAATypes;			// Array of multisample types supported (each one 2-16)

	hsBool				fCanRenderToCubics;

public:
	hsG3DDeviceMode();
	~hsG3DDeviceMode();

	hsBool operator< (const hsG3DDeviceMode &mode) const;

	void Clear();

	hsBool GetDiscarded() const { return 0 != (fFlags & kDiscarded); }
	UInt32 GetWidth() const { return fWidth; }
	UInt32 GetHeight() const { return fHeight; }
	UInt32 GetColorDepth() const { return fDepth; }
	UInt8	GetNumZStencilDepths( void ) const { return fZStencilDepths.GetCount(); }
	UInt16	GetZStencilDepth( UInt8 i ) const { return fZStencilDepths[ i ]; }
	UInt8	GetNumFSAATypes( void ) const { return fFSAATypes.GetCount(); }
	UInt8	GetFSAAType( UInt8 i ) const { return fFSAATypes[ i ]; }
	hsBool	GetCanRenderToCubics( void ) const { return fCanRenderToCubics; }

	void SetDiscarded(hsBool on=true) { if(on) fFlags |= kDiscarded; else fFlags &= ~kDiscarded; }
	void SetWidth(UInt32 w) { fWidth = w; }
	void SetHeight(UInt32 h) { fHeight = h; }
	void SetColorDepth(UInt32 d) { fDepth = d; }
	void	ClearZStencilDepths( void ) { fZStencilDepths.Reset(); }
	void	AddZStencilDepth( UInt16 depth ) { fZStencilDepths.Append( depth ); }

	void	ClearFSAATypes( void ) { fFSAATypes.Reset(); }
	void	AddFSAAType( UInt8 type ) { fFSAATypes.Append( type ); }

	void	SetCanRenderToCubics( hsBool can ) { fCanRenderToCubics = can; }
};

class hsG3DDeviceRecord
{
public:
	enum {
		kNone			= 0x0,
		kDiscarded		= 0x1,
		kInvalid		= 0x2
	};

	enum FogTypes {
		kFogExp = 0,
		kFogExp2,
		kNumFogTypes
	};

protected:

	UInt32			fFlags;

	UInt32			fG3DDeviceType;
	UInt32			fG3DHALorHEL;


	char*			fG3DDriverDesc;
	char*			fG3DDriverName;
	char*			fG3DDriverVersion;
	char*			fG3DDeviceDesc;

	hsBitVector			fCaps;
	UInt32				fLayersAtOnce;
	UInt32				fMemoryBytes;

	hsTArray<hsG3DDeviceMode> fModes;

	float	fZBiasRating;
	float	fLODBiasRating;
	float	fFogExpApproxStart;
	float	fFogExp2ApproxStart;
	float	fFogEndBias;	// As a percentage of the max value for fog
							// (i.e. for Z fog, it's a percentage of 1 to add on,
							// for W fog, it's a percentage of the yon)

	float	fFogKnees[ kNumFogTypes ];
	float	fFogKneeVals[ kNumFogTypes ];

	UInt8	fAASetting;

	UInt8	fMaxAnisotropicSamples;	// 1 to disable, up to max allowed in hardware
	int fPixelShaderMajorVer;
	int fPixelShaderMinorVer;

public:
	hsG3DDeviceRecord();
	virtual ~hsG3DDeviceRecord();

	hsG3DDeviceRecord(const hsG3DDeviceRecord& src);
	hsG3DDeviceRecord& operator=(const hsG3DDeviceRecord& src);

	UInt32	GetG3DDeviceType() const { return fG3DDeviceType; }
	const char* GetG3DDeviceTypeName() const;
	UInt32	GetG3DHALorHEL() const { return fG3DHALorHEL; }

	UInt32 GetMemoryBytes() const { return fMemoryBytes; }

	const char* GetDriverDesc() const { return fG3DDriverDesc; }
	const char* GetDriverName() const { return fG3DDriverName; }
	const char* GetDriverVersion() const { return fG3DDriverVersion; }
	const char* GetDeviceDesc() const { return fG3DDeviceDesc; }

	void SetG3DDeviceType(UInt32 t) { fG3DDeviceType = t; }
	void SetG3DHALorHEL(UInt32 h) { fG3DHALorHEL = h; }
	void SetMemoryBytes(UInt32 b) { fMemoryBytes = b; }

	void SetDriverDesc(const char* s);
	void SetDriverName(const char* s);
	void SetDriverVersion(const char* s);
	void SetDeviceDesc(const char* s);

	hsBool	GetCap(UInt32 cap) const { return fCaps.IsBitSet(cap); }
	void	SetCap(UInt32 cap, hsBool on=true) { fCaps.SetBit(cap, on); }

	float	GetZBiasRating( void ) const { return fZBiasRating; }
	void	SetZBiasRating( float rating ) { fZBiasRating = rating; }

	float	GetLODBiasRating( void ) const { return fLODBiasRating; }
	void	SetLODBiasRating( float rating ) { fLODBiasRating = rating; }

	void	GetFogApproxStarts( float &expApprox, float &exp2Approx ) const { expApprox = fFogExpApproxStart;
																			exp2Approx = fFogExp2ApproxStart; }
	void	SetFogApproxStarts( float exp, float exp2 ) { fFogExpApproxStart = exp; 
																fFogExp2ApproxStart = exp2; }

	float	GetFogEndBias( void ) const { return fFogEndBias; }
	void	SetFogEndBias( float rating ) { fFogEndBias = rating; }

	void	GetFogKneeParams( UInt8 type, float &knee, float &kneeVal ) const { knee = fFogKnees[ type ]; kneeVal = fFogKneeVals[ type ]; }
	void	SetFogKneeParams( UInt8 type, float knee, float kneeVal ) { fFogKnees[ type ] = knee; fFogKneeVals[ type ] = kneeVal; }

	UInt32	GetLayersAtOnce() const { return fLayersAtOnce; }
	void	SetLayersAtOnce(UInt32 n) { fLayersAtOnce = n; }

	UInt8	GetAASetting() const { return fAASetting; }
	void	SetAASetting( UInt8 s ) { fAASetting = s; }

	UInt8	GetMaxAnisotropicSamples( void ) const { return fMaxAnisotropicSamples; }
	void	SetMaxAnisotropicSamples( UInt8 num ) { fMaxAnisotropicSamples = num; }

	void SetDiscarded(hsBool on=true) { if(on)fFlags |= kDiscarded; else fFlags &= ~kDiscarded; }
	hsBool GetDiscarded() const { return 0 != (fFlags & kDiscarded); }

	void	SetInvalid( hsBool on = true ) { if( on ) fFlags |= kInvalid; else fFlags &= ~kInvalid; }
	hsBool	IsInvalid() const { return 0 != ( fFlags & kInvalid ); }

	hsTArray<hsG3DDeviceMode>& GetModes() { return fModes; }

	hsG3DDeviceMode* GetMode(int i) const { return &fModes[i]; }

	void ClearModes();
	void Clear();
	void RemoveDiscarded();

	void SetPixelShaderVersion(int major, int minor) { fPixelShaderMajorVer = major; fPixelShaderMinorVer = minor; }
	void GetPixelShaderVersion(int &major, int &minor) { major = fPixelShaderMajorVer; minor = fPixelShaderMinorVer; }
};

class hsG3DDeviceModeRecord
{
protected:
	hsG3DDeviceRecord		fDevice;
	hsG3DDeviceMode			fMode;
public:
	hsG3DDeviceModeRecord();
	hsG3DDeviceModeRecord(const hsG3DDeviceRecord& devRec, const hsG3DDeviceMode& devMode);
	~hsG3DDeviceModeRecord();

	hsG3DDeviceModeRecord(const hsG3DDeviceModeRecord& src);
	hsG3DDeviceModeRecord& operator=(const hsG3DDeviceModeRecord& src);

	const hsG3DDeviceRecord*	GetDevice() const { return &fDevice; }
	const hsG3DDeviceMode*		GetMode() const { return &fMode; }
};

class hsG3DDeviceSelector : public hsRefCnt
{
public:
	enum {
		kDevTypeUnknown		= 0,
		kDevTypeDirect3D,
		kDevTypeOpenGL,

		kNumDevTypes
	};
	enum {
		kHHTypeUnknown      = 0,
		kHHD3DNullDev,
		kHHD3DHALDev,
		kHHD3DTnLHalDev,
		kHHD3DRefDev,

		kNumHHTypes
	};
	enum {
		kCapsNone			= 0,
		kCapsMipmap,
		kCapsPerspective,
		kCapsHardware,
		kCapsCompressTextures,
		kCapsHWTransform,
		kCapsFogLinear,
		kCapsFogExp,
		kCapsFogExp2,
		kCapsFogRange,
		kCapsDoesSmallTextures,
		kCapsPixelFog,
		kCapsBadYonStuff,
		kCapsCubicTextures,
		kCapsCubicMipmap,
		kCapsZBias,
		kCapsPixelShader,
		kCapsNoAA,
		kCapsDoubleFlush,
		kCapsSingleFlush,
		kCapsCantShadow,
		kCapsMaxUVWSrc2,
		kCapsCantProj,
		kCapsShareDepth,
		kCapsBadManaged,
		kCapsNoAniso,
		// etc.

		kNumCaps
	};
	enum
	{
		kDefaultWidth	= 800,
		kDefaultHeight	= 600,
		kDefaultDepth	= 32
	};

protected:
	hsTArray<hsG3DDeviceRecord>		fRecords;
	char fTempWinClass[ 128 ];

	char	fErrorString[ 128 ];

	void IClear();
	void IRemoveDiscarded();

	void ITryDirect3DTnLDevice(D3DEnum_DeviceInfo* devInfo, hsG3DDeviceRecord& srcDevRec);
	void ITryDirect3DTnLDriver(D3DEnum_DriverInfo* drivInfo);
	void ITryDirect3DTnL(hsWinRef winRef);

	void IFudgeDirectXDevice( hsG3DDeviceRecord &record,
								D3DEnum_DriverInfo *driverInfo, D3DEnum_DeviceInfo *deviceInfo );
	UInt32	IAdjustDirectXMemory( UInt32 cardMem );

	hsBool	IGetD3DCardInfo( hsG3DDeviceRecord &record, void *driverInfo, void *deviceInfo,
								DWORD *vendorID, DWORD *deviceID, char **driverString, char **descString );

	void	ISetFudgeFactors( UInt8 chipsetID, hsG3DDeviceRecord &record );

public:
	hsG3DDeviceSelector();
	virtual ~hsG3DDeviceSelector();

	void RemoveUnusableDevModes(hsBool bTough);	// Removes modes and devices not allowed supported in release

	void Enumerate(hsWinRef winRef);

	hsBool GetDefault(hsG3DDeviceModeRecord *dmr);

};

#endif // hsG3DDeviceSelector_inc