Simple3xScaler.hh

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#ifndef SIMPLE3XSCALER_HH
#define SIMPLE3XSCALER_HH
 
#include "Scaler3.hh"
#include "PixelOperations.hh"
#include "Scanline.hh"
#include <memory>
 
namespace openmsx {
 
class RenderSettings;
template <class Pixel> class Blur_1on3;
template <class Pixel> class PolyLineScaler;
 
template <class Pixel>
class Simple3xScaler final : public Scaler3<Pixel>
{
public:
        Simple3xScaler(const PixelOperations<Pixel>& pixelOps,
                       const RenderSettings& settings);
        ~Simple3xScaler() override;
 
private:
        void scaleImage(FrameSource& src, const RawFrame* superImpose,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scaleBlank1to3(
                FrameSource& src, unsigned srcStartY, unsigned srcEndY,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scaleBlank2to3(
                FrameSource& src, unsigned srcStartY, unsigned srcEndY,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale2x1to9x3(FrameSource& src,
                unsigned srcstarty, unsigned srcendy, unsigned srcwidth,
                ScalerOutput<Pixel>& dst, unsigned dststarty, unsigned dstendy) override;
        void scale2x2to9x3(FrameSource& src,
                unsigned srcstarty, unsigned srcendy, unsigned srcwidth,
                ScalerOutput<Pixel>& dst, unsigned dststarty, unsigned dstendy) override;
        void scale1x1to3x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale1x2to3x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale4x1to9x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale4x2to9x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale2x1to3x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale2x2to3x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale8x1to9x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale8x2to9x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale4x1to3x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
        void scale4x2to3x3(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY) override;
 
        void doScale1(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY,
                PolyLineScaler<Pixel>& scale);
        void doScale2(FrameSource& src,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                ScalerOutput<Pixel>& dst, unsigned dstStartY, unsigned dstEndY,
                PolyLineScaler<Pixel>& scale);
 
        PixelOperations<Pixel> pixelOps;
        Scanline<Pixel> scanline;
 
        // in 16bpp calculation of LUTs can be expensive, so keep as member
        std::unique_ptr<Blur_1on3<Pixel>> blur_1on3;
 
        const RenderSettings& settings;
};
 
} // namespace openmsx
 
#endif