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

/*==LICENSE==*

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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_t              fFlags;

    uint32_t              fWidth;
    uint32_t              fHeight;
    uint32_t              fDepth;

    hsTArray<uint16_t>    fZStencilDepths;    // Array of supported depth/stencil buffer formats.
                                            // Each entry is of the form: ( stencil bit count << 8 ) | ( depth bit count )
    hsTArray<uint8_t>     fFSAATypes;         // Array of multisample types supported (each one 2-16)

    bool                  fCanRenderToCubics;

public:
    hsG3DDeviceMode();
    ~hsG3DDeviceMode();

    bool operator< (const hsG3DDeviceMode &mode) const;

    void Clear();

    bool     GetDiscarded() const { return 0 != (fFlags & kDiscarded); }
    uint32_t GetWidth() const { return fWidth; }
    uint32_t GetHeight() const { return fHeight; }
    uint32_t GetColorDepth() const { return fDepth; }
    uint8_t  GetNumZStencilDepths( void ) const { return fZStencilDepths.GetCount(); }
    uint16_t GetZStencilDepth( uint8_t i ) const { return fZStencilDepths[ i ]; }
    uint8_t  GetNumFSAATypes( void ) const { return fFSAATypes.GetCount(); }
    uint8_t  GetFSAAType( uint8_t i ) const { return fFSAATypes[ i ]; }
    bool     GetCanRenderToCubics( void ) const { return fCanRenderToCubics; }

    void SetDiscarded(bool on=true) { if(on) fFlags |= kDiscarded; else fFlags &= ~kDiscarded; }
    void SetWidth(uint32_t w) { fWidth = w; }
    void SetHeight(uint32_t h) { fHeight = h; }
    void SetColorDepth(uint32_t d) { fDepth = d; }
    void ClearZStencilDepths( void ) { fZStencilDepths.Reset(); }
    void AddZStencilDepth( uint16_t depth ) { fZStencilDepths.Append( depth ); }

    void    ClearFSAATypes( void ) { fFSAATypes.Reset(); }
    void    AddFSAAType( uint8_t type ) { fFSAATypes.Append( type ); }

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

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

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

protected:

    uint32_t          fFlags;

    uint32_t          fG3DDeviceType;
    uint32_t          fG3DHALorHEL;


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

    hsBitVector         fCaps;
    uint32_t              fLayersAtOnce;
    uint32_t              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_t   fAASetting;

    uint8_t   fMaxAnisotropicSamples; // 1 to disable, up to max allowed in hardware

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

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

    uint32_t  GetG3DDeviceType() const { return fG3DDeviceType; }
    const char* GetG3DDeviceTypeName() const;
    uint32_t  GetG3DHALorHEL() const { return fG3DHALorHEL; }

    uint32_t 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 t) { fG3DDeviceType = t; }
    void SetG3DHALorHEL(uint32_t h) { fG3DHALorHEL = h; }
    void SetMemoryBytes(uint32_t b) { fMemoryBytes = b; }

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

    bool    GetCap(uint32_t cap) const { return fCaps.IsBitSet(cap); }
    void    SetCap(uint32_t cap, bool 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_t type, float &knee, float &kneeVal ) const { knee = fFogKnees[ type ]; kneeVal = fFogKneeVals[ type ]; }
    void    SetFogKneeParams( uint8_t type, float knee, float kneeVal ) { fFogKnees[ type ] = knee; fFogKneeVals[ type ] = kneeVal; }

    uint32_t  GetLayersAtOnce() const { return fLayersAtOnce; }
    void    SetLayersAtOnce(uint32_t n) { fLayersAtOnce = n; }

    uint8_t   GetAASetting() const { return fAASetting; }
    void    SetAASetting( uint8_t s ) { fAASetting = s; }

    uint8_t   GetMaxAnisotropicSamples( void ) const { return fMaxAnisotropicSamples; }
    void    SetMaxAnisotropicSamples( uint8_t num ) { fMaxAnisotropicSamples = num; }

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

    void    SetInvalid( bool on = true ) { if( on ) fFlags |= kInvalid; else fFlags &= ~kInvalid; }
    bool    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();
};

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_t  IAdjustDirectXMemory( uint32_t cardMem );

    bool      IGetD3DCardInfo( hsG3DDeviceRecord &record, void *driverInfo, void *deviceInfo,
                               uint32_t *vendorID, uint32_t *deviceID, char **driverString, char **descString );

    void    ISetFudgeFactors( uint8_t chipsetID, hsG3DDeviceRecord &record );

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

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

    void Enumerate(hsWinRef winRef);

    bool GetDefault(hsG3DDeviceModeRecord *dmr);
};
#endif // hsG3DDeviceSelector_inc