MapOp.h

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/*  Copyright (C) 2003-2021 Free Electron Organization
    Any use of this software requires a license.  If a valid license
    was not distributed with this file, visit freeelectron.org. */

/** @file */

#ifndef __operator_MapOp_h__
#define __operator_MapOp_h__

namespace fe
{
namespace ext
{

/**************************************************************************//**
    @brief Load a texture map into an attribute

    @ingroup operator
*//***************************************************************************/
class FE_DL_EXPORT MapOp:
    public OperatorSurfaceCommon,
    public Initialize<MapOp>
{
    public:

                    MapOp(void)                                             {}
virtual             ~MapOp(void)                                            {}

        void        initialize(void);

                    //* As HandlerI
virtual void        handle(Record& a_rSignal);

    protected:

    class FE_DL_EXPORT Raster
    {
        public:
                                Raster(sp<Registry> a_spRegistry):
                                    m_spRegistry(a_spRegistry)              {}

            void                setTemplate(String a_template)
                                {   m_template=a_template; }

            void                setMinMax(Real a_min,Real a_max,Real a_random)
                                {   m_min=a_min;
                                    m_range=a_max-a_min;
                                    m_random=a_random;
                                }

            String              string(const Vector2& a_rUV);
            I32                 integer(const Vector2& a_rUV);
            Real                real(const Vector2& a_rUV);
            SpatialVector       spatialVector(const Vector2& a_rUV);

        private:

            Real                low1(const Vector2& a_rUV);
            SpatialVector       low3(const Vector2& a_rUV);

            BWORD               lookup(const Vector2& a_rUV,U8* a_pData);

            sp<Registry>        m_spRegistry;

            Noise               m_noise;

            String              m_template;

            Real                m_min;
            Real                m_range;
            Real                m_random;

            Array< sp<ImageI> > m_mapArray;
            Array<U32>          m_idArray;
    };

    private:
        sp<Scope>                               m_spScope;
};

} /* namespace ext */
} /* namespace fe */

#endif /* __operator_MapOp_h__ */