CWE-ou-minkata/Sources/Tools/MaxPlasmaMtls/Layers/plPlasmaMAXLayer.h

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*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  plPlasmaMAXLayer - MAX Layer type that is the basis for all Plasma layer //
//                     types                                                 //
//  Cyan, Inc.                                                               //
//                                                                           //
//// Version History //////////////////////////////////////////////////////////
//                                                                           //
//  1.13.2002 mcn - Created.                                                 //
//                                                                           //
//// Notes from the Author ////////////////////////////////////////////////////
//                                                                           //
//  This base class is actually a quite-recent addition. As a result, most   //
//  of the old, non-base-class-structured code is still lying around. This   //
//  code will be slowly converted over as time goes on; the theory was that  //
//  this conversion would be far more likely to occur if the base class      //
//  actually already existed.                                                //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#ifndef _plPlasmaMAXLayer_h
#define _plPlasmaMAXLayer_h

//// Derived Type Class IDs ///////////////////////////////////////////////////
//  If you create a new Plasma layer type, add a define for the class ID here 
//  and also add the ID to the list in plPlasmaMAXLayer.cpp.

const Class_ID LAYER_TEX_CLASS_ID( 0x4223c620, 0x183c4868 );
const Class_ID STATIC_ENV_LAYER_CLASS_ID( 0x379a0a20, 0x3d0b1244 );
const Class_ID DYNAMIC_ENV_LAYER_CLASS_ID( 0x18205c0f, 0x57ea0e10 );
const Class_ID DYN_TEXT_LAYER_CLASS_ID( 0x36e3480f, 0x120120bd );
const Class_ID ANGLE_ATTEN_LAYER_CLASS_ID( 0x6d90918, 0x6160114 );
const Class_ID MAX_CAMERA_LAYER_CLASS_ID( 0xfaf5ec7, 0x13d90d3f );

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

class Bitmap;
class PBBitmap;
class plBitmapData;
class BitmapInfo;
class plBMSamplerData;
class plDynamicTextMap;
class plErrorMsg;
class plLayer;
class plLayerConverter;
class plLayerInterface;
class plLayerTargetContainer;
class plLocation;
class plMaxNode;
class Texmap;
class jvUniqueId;

class plPlasmaMAXLayer : public Texmap
{
    friend class plLayerConverter;

    protected:

        static const Class_ID   fDerivedTypes[];

        plLayerTargetContainer  *fConversionTargets;


        void    IAddConversionTarget( plLayerInterface *target );
        void    IClearConversionTargets( void );

    public:

        plPlasmaMAXLayer();
        virtual ~plPlasmaMAXLayer();

        void    DeleteThis() { delete this; }       


        // Static that checks the classID of the given texMap and, if it's a valid Plasma MAX Layer, returns a pointer to such
        static plPlasmaMAXLayer     *GetPlasmaMAXLayer( Texmap *map );

        // Some layers must be unique for each node they're applied to (i.e. can't be shared among nodes).
        // This returns true if the layer must be unique.
        virtual bool MustBeUnique( void ) { return false; }

        // These let the material make an informed decision on what to do with
        // the color and alpha values coming out of an EvalColor call. Something
        // like an InvertColor can be handled within EvalColor, but there needs
        // to be a way to tell the caller that the color returned should be completely
        // ignored.
        virtual BOOL    DiscardColor() { return false; }
        virtual BOOL    DiscardAlpha() { return false; }


        // Return the number of conversion targets (only valid after the MakeMesh pass)
        int     GetNumConversionTargets( void );

        // Get an indexed conversion target
        plLayerInterface    *GetConversionTarget( int index );
        
        virtual BOOL HandleBitmapSelection(int index = 0);
        virtual void SetBitmap(BitmapInfo *bi, int index = 0);
#ifdef MAXASS_AVAILABLE
        virtual void SetBitmapAssetId(jvUniqueId& assetId, int index = 0);
        virtual void GetBitmapAssetId(jvUniqueId& assetId, int index = 0);
#endif

        // Pure virtual accessors for the various bitmap related elements
        virtual Bitmap *GetMaxBitmap(int index = 0) = 0;
        virtual PBBitmap *GetPBBitmap( int index = 0 ) = 0;
        virtual int     GetNumBitmaps( void ) = 0;

        // Makes sure the textures are the latest versions (including getting
        // the latest version from AssetMan)
        void RefreshBitmaps();

        bool    GetBitmapFileName( char *destFilename, int maxLength, int index = 0 );

        // Virtual function called by plBMSampler to get various things while sampling the layer's image
        virtual bool    GetSamplerInfo( plBMSamplerData *samplerData ) { return false; }

        // Backdoor for the texture find and replace util.  Assumes input has the correct aspect ratio and is power of 2.
        virtual void SetExportSize(int x, int y) {}
        
    protected:
        virtual void ISetMaxBitmap(Bitmap *bitmap, int index = 0) = 0;
        virtual void ISetPBBitmap( PBBitmap *pbbm, int index = 0 ) = 0;

};

#endif // _plPlasmaMAXLayer_h