SobelProcess.hpp

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#ifndef _TUTTLE_PLUGIN_SOBEL_PROCESS_HPP_
#define _TUTTLE_PLUGIN_SOBEL_PROCESS_HPP_

#include <tuttle/plugin/ImageGilFilterProcessor.hpp>
#include <boost/mpl/bool.hpp>

namespace tuttle {
namespace plugin {
namespace sobel {

/**
 * @brief Sobel process
 *
 */
template<class SView, class DView>
class SobelProcess : public ImageGilFilterProcessor<SView, DView>
{
public:
        typedef float Scalar;
        typedef typename SView::point_t Point;
        typedef typename DView::value_type DPixel;

protected :
    SobelPlugin&    _plugin;        ///< Rendering plugin
        SobelProcessParams<Scalar> _params; ///< user parameters

        DPixel _pixelZero;

public:
    SobelProcess( SobelPlugin& effect );

        void setup( const OFX::RenderArguments& args );
        void preProcess();
    void multiThreadProcessImages( const OfxRectI& procWindowRoW );

//      template<class ProcPixelGray>
//      void computeXPass2( DView& dst, const Point& proc_tl, boost::mpl::true_ );
//      template<class ProcPixelGray>
//      void computeXPass2( DView& dst, const Point& proc_tl, boost::mpl::false_ )
//      {
//              BOOST_THROW_EXCEPTION( exception::Bug() );
//      }

        template<class ProcPixelGray>
        void computeYPass2( DView& dst, const Point& proc_tl, boost::mpl::true_ )
        {
                using namespace terry;
                using namespace terry::filter;
                correlate_cols_auto<ProcPixelGray>(
                        kth_channel_view<1>( this->_srcView ),
                        _params._yKernelGaussianDerivative,
                        kth_channel_view<1>(dst),
                        proc_tl,
                        _params._boundary_option );
        }
        template<class ProcPixelGray>
        void computeYPass2( DView& dst, const Point& proc_tl, boost::mpl::false_ )
        {
                BOOST_THROW_EXCEPTION( exception::Bug() );
        }

        void computeGradientDirection( DView& dst, boost::mpl::true_ );
        void computeGradientDirection( DView& dst, boost::mpl::false_ ){}
};

}
}
}

#include "SobelProcess.tcc"

#endif