Scale3xScaler.hh

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#ifndef SCALE3XSCALER_HH
#define SCALE3XSCALER_HH

#include "Scaler3.hh"

namespace openmsx {

template <class Pixel>
class Scale3xScaler : public Scaler3<Pixel>
{
public:
        explicit Scale3xScaler(const PixelOperations<Pixel>& pixelOps);

        virtual void scale1x1to3x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY);

private:
        void scaleLine1on3Half(Pixel* dst,
                const Pixel* src0, const Pixel* src1, const Pixel* src2,
                unsigned srcWidth);
        void scaleLine1on3Mid (Pixel* dst,
                const Pixel* src0, const Pixel* src1, const Pixel* src2,
                unsigned srcWidth);
};

} // namespace openmsx

#endif