SuperImposeScalerOutput.hh

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#ifndef SUPERIMPOSESCALEROUTPUT_HH
#define SUPERIMPOSESCALEROUTPUT_HH

#include "ScalerOutput.hh"
#include "PixelOperations.hh"

namespace openmsx {

class RawFrame;

template<typename Pixel>
class SuperImposeScalerOutput final : public ScalerOutput<Pixel>
{
public:
        SuperImposeScalerOutput(ScalerOutput<Pixel>& output,
                                const RawFrame& superImpose_,
                                const PixelOperations<Pixel>& pixelOps_);

        unsigned getWidth()  const override;
        unsigned getHeight() const override;
        Pixel* acquireLine(unsigned y) override;
        void   releaseLine(unsigned y, Pixel* buf)  override;
        void   fillLine   (unsigned y, Pixel color) override;

private:
        const Pixel* getSrcLine(unsigned y, Pixel* buf);

        ScalerOutput<Pixel>& output;
        const RawFrame& superImpose;
        const PixelOperations<Pixel> pixelOps;
};

} // namespace openmsx

#endif