TuttleOFX/libraries/tuttle/src/tuttle/host/attribute/ClipImage.hpp

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#ifndef _TUTTLE_HOST_CORE_CLIPIMAGE_HPP_
#define _TUTTLE_HOST_CORE_CLIPIMAGE_HPP_

#include "Attribute.hpp"

#include <tuttle/host/attribute/Image.hpp>
#include <tuttle/host/INode.hpp>
#include <tuttle/host/memory/IMemoryCache.hpp>
#include <tuttle/host/ofx/attribute/OfxhClipImage.hpp>

#include <boost/cstdint.hpp>

#define SOFXCLIPLENGTH 1

namespace tuttle {
namespace host {
namespace attribute {

/**
 *
 *
 */
class ClipImage : public Attribute
        , public ofx::attribute::OfxhClipImage
{
friend class INode;

protected:
        std::string _name;
        bool _isConnected;
        bool _continuousSamples;

        const ClipImage* _connectedClip; ///< @warning HACK ! to keep the connection @todo remove this !!!!

public:
        ClipImage( INode& effect, const ofx::attribute::OfxhClipImageDescriptor& desc );
        
        ClipImage( const ClipImage& other );
        
        ~ClipImage();

private:
        ClipImage& operator=( const ClipImage& other );
        
public:
        ClipImage* clone() const { return new ClipImage( *this ); }

        const std::string& getName() const { return ofx::attribute::OfxhAttributeAccessor::getName(); }

        /// @warning HACK ! to keep the connection
        /// @todo remove this !!!!
        void setConnectedClip( const ClipImage& other )
        {
                if( isOutput() )
                {
                        BOOST_THROW_EXCEPTION( exception::Logic()
                            << exception::user( "You can't connect an output Clip !" ) );
                }
                if( !other.isOutput() )
                {
                        BOOST_THROW_EXCEPTION( exception::Logic()
                            << exception::user( "You can't connect to an input Clip !" ) );
                }
                //TUTTLE_TLOG( TUTTLE_TRACE, "== setConnectedClip: " );
                //TUTTLE_TLOG_VAR( TUTTLE_TRACE, getFullName() );
                //TUTTLE_TLOG_VAR( TUTTLE_TRACE, other.getFullName() );
                
                _connectedClip = &other;
                setConnected();

                getEditableProperties().setStringProperty( "TuttleFullName", getFullName() );
                getEditableProperties().setStringProperty( "TuttleIdentifier", getClipIdentifier() );
        }

        void setUnconnected() { _connectedClip = NULL; setConnected( false ); }

        std::string getFullName() const;

        OfxTime getRemappedTime( const OfxTime time ) const;

        std::string getConnectedClipFullName() const
        {
                if( isOutput() || !isConnected() || _connectedClip->getFullName().size() == 0 )
                {
                        BOOST_THROW_EXCEPTION( exception::Logic()
                            << exception::user( "Input clip " + getFullName() + " is not connected !" ) );
                }
                return _connectedClip->getFullName();
        }

        std::string getClipIdentifier() const
        {
                if( isOutput() || ! isConnected() )
                        return getFullName();
                else
                        return getConnectedClipFullName();
        }

        /// @todo tuttle: this is really bad...
        ClipImage& getConnectedClip()
        {
                return const_cast<ClipImage&>( *_connectedClip );
        }

        const ClipImage& getConnectedClip() const
        {
                return *_connectedClip;
        }

        /**
         * @brief Get the Raw Unmapped Pixel Depth from the host
         *  @returns
         *     - kOfxBitDepthNone (implying a clip is unconnected image)
         *     - kOfxBitDepthByte
         *     - kOfxBitDepthShort
         *     - kOfxBitDepthFloat
         */
        const std::string& getUnmappedBitDepth() const;

        /**
         * @brief Get the Raw Unmapped Components from the host
         * @returns
         *      - kOfxImageComponentNone (implying a clip is unconnected, not valid for an image)
         *      - kOfxImageComponentRGBA
         *      - kOfxImageComponentRGB
         *      - kOfxImageComponentAlpha
         */
        const std::string& getUnmappedComponents() const;

        #if 0
        /**
         * @brief PreMultiplication
         *      - kOfxImageOpaque - the image is opaque and so has no premultiplication state
         *      - kOfxImagePreMultiplied - the image is premultiplied by it's alpha
         *      - kOfxImageUnPreMultiplied - the image is unpremultiplied
         */
        const std::string& getPremult() const { return getNode().getOutputPreMultiplication(); }

        /**
         * @brief Field Order - Which spatial field occurs temporally first in a frame.
         * @returns
         *  - kOfxImageFieldNone - the clip material is unfielded
         *  - kOfxImageFieldLower - the clip material is fielded, with image rows 0,2,4.... occuring first in a frame
         *  - kOfxImageFieldUpper - the clip material is fielded, with image rows line 1,3,5.... occuring first in a frame
         */
        const std::string& getFieldOrder() const
        {
                /// our clip is pretending to be progressive PAL SD, so return kOfxImageFieldNone
                static const std::string v( kOfxImageFieldNone );

                return v;
        }

        /**
         * @brief Continuous Samples
         *  0 if the images can only be sampled at discreet times (eg: the clip is a sequence of frames),
         *  1 if the images can only be sampled continuously (eg: the clip is infact an animating roto spline and can be rendered anywhen).
         */
        const bool getContinuousSamples() const                         { return _continuousSamples; }
        void       setContinuousSamples( const bool continuousSamples ) { _continuousSamples = continuousSamples; }

        #endif

        /**
         * @brief Frame Rate
         * The frame rate of a clip or instance's project.
         */
        double getFrameRate() const;
        
        void setFrameRate( const double fps );

        /**
         * @brief Frame Range (startFrame, endFrame)
         * The frame range over which a clip has images.
         */
        void setFrameRange( const double startFrame, const double endFrame );

        /**
         * @brief Unmapped Frame Rate
         */
        const double getUnmappedFrameRate() const;

        /**
         * @brief Unmapped Frame Range -
         * The unmaped frame range over which an output clip has images.
         */
        void setUnmappedFrameRange( const double unmappedStartFrame, const double unmappedEndFrame );

        /**
         * @brief override this to fill in the image at the given time.
         * The bounds of the image on the image plane should be
         * appropriate', typically the value returned in getRegionsOfInterest
         * on the effect instance. Outside a render call, the optionalBounds should
         * be 'appropriate' for the.
         * If bounds is not null, fetch the indicated section of the canonical image plane.
         */
        tuttle::host::ofx::imageEffect::OfxhImage* getImage( const OfxTime time, const OfxRectD* optionalBounds = NULL );

        /**
         * @brief override this to return the rod on the clip
         */
        OfxRectD fetchRegionOfDefinition( const OfxTime time ) const;
};

}
}
}

#endif