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

/*==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
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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,
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*==LICENSE==*/
#ifndef __PLMAXLAYER__H
#define __PLMAXLAYER__H

#include "Max.h"
#include "plPlasmaMAXLayer.h"

class ClassDesc2;
class IParamBlock2;
class Bitmap;

ClassDesc2* GetLayerTexDesc();

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

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

    IMtlParams      *fMtlParams;

    TexHandle *fTexHandle;
    TimeValue fTexTime;

    Bitmap *fBM;
    static ParamDlg *fUVGenDlg;
    Interval        fIValid;
   
    friend class BitmapDlgProc;

public:
    // Ref nums
    enum
    {
        kRefUVGen,
        kRefBasic, // DEAD, but left in for backwards compatability
        kRefBitmap,
    };

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

    plLayerTex();
    ~plLayerTex();
    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; }
    
    virtual BOOL    DiscardColor();
    virtual BOOL    DiscardAlpha();
    
    // Loading/Saving
    IOResult Load(ILoad *iload);
    IOResult Save(ISave *isave);

    //From Animatable
    Class_ID ClassID() { return LAYER_TEX_CLASS_ID; }       
    SClass_ID SuperClassID() { return TEXMAP_CLASS_ID; }
    void GetClassName(TSTR& s);

    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
    
    bool HasAlpha(); // Checks if the bitmap for this layer has an alpha channel
    virtual Bitmap* GetBitmap(TimeValue t);
        
    const char *GetTextureName();
    
    // Accessors needed by the base class for the various bitmap related elements
    virtual Bitmap *GetMaxBitmap(int index = 0) { return fBM; }
    virtual PBBitmap *GetPBBitmap( int index = 0 ); 
    virtual int     GetNumBitmaps( void ) { return 1; }

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

    // 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 ISetPBBitmap( PBBitmap *pbbm, int index = 0 ); 
    virtual void ISetMaxBitmap(Bitmap *bitmap, int index = 0) { fBM = bitmap; }

};

#endif // __PLMAXLAYER__H