RU/RU_Feather.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * Produced by:
 *
 *      Mark Alexander
 *      Side Effects
 *      477 Richmond Street West
 *      Toronto, Ontario
 *      Canada   M5V 3E7
 *      416-504-9876
 *
 * NAME:        RU_Feather.h
 *
 * COMMENTS:
 *      Does a feather on a matte.
 */
#ifndef RU_FEATHER_H
#define RU_FEATHER_H

#include "RU_API.h"
#include <PXL/PXL_LumFuncs.h>

#include "RU_Algorithm.h"

enum RU_FeatherType
{
    RU_FEATHER_EXPAND =0,
    RU_FEATHER_SHRINK,
    RU_FEATHER_FILL_HOLES,
    RU_FEATHER_REMOVE_SPECKS
};
        
enum RU_FeatherDropoff
{
    RU_FEATHER_LINEAR =0,
    RU_FEATHER_GAUSSIAN,
    RU_FEATHER_EASE_IN,
    RU_FEATHER_EASE_OUT,
    RU_FEATHER_HALF_COS
};
        

class RU_API RU_Feather : public RU_Algorithm
{
public:
                 RU_Feather();
    virtual     ~RU_Feather();

    virtual int  initialize(float );

    DECLARE_FILTER_OP(RU_FeatherOp)

    void         setLUTVal(int x, int y, float v);
    float        getLUTVal(int x, int y) const;
    
    float        evalLUT(float x, float y) const;

    // determines whether to expand off the luminance or per-component
    bool                myUseLuma;
    PXL_LumFunction     myLumFunc;

    // operation.
    RU_FeatherType      myFeatherType;
    
    // Parameters for expand/shink
    float               myExpandSize;
    float               myExpandYSize;
    
    float               myFeatherSize;
    float               myFeatherYSize;
    RU_FeatherDropoff   myFeatherDropoff;
    int                 mySmoothLevel;
    bool                myFeatherFast;

    // parameters for fill holes
    float               myHoleThreshold;

    // treat these as private:
    float               *myFeatherLUT;
    int                  myXSize;
    int                  myYSize;

    // mask - must be the same size as the data passed in.
    float               *myMask;
};


#endif

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