GLHQScaler.hh

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#ifndef GLHQSCALER_HH
#define GLHQSCALER_HH
 
#include "GLScaler.hh"
 
#include <array>
#include <cstdint>
 
namespace openmsx {
 
class GLHQScaler final : public GLScaler
{
public:
        explicit GLHQScaler(GLScaler& fallback, unsigned maxWidth, unsigned maxHeight);
 
        void scaleImage(
                gl::ColorTexture& src, gl::ColorTexture* superImpose,
                unsigned srcStartY, unsigned srcEndY, unsigned srcWidth,
                unsigned dstStartY, unsigned dstEndY, unsigned dstWidth,
                unsigned logSrcHeight) override;
        void uploadBlock(
                unsigned srcStartY, unsigned srcEndY,
                unsigned lineWidth, FrameSource& paintFrame) override;
 
private:
        GLScaler& fallback;
        gl::Texture edgeTexture;
        std::array<gl::Texture, 3> offsetTexture;
        std::array<gl::Texture, 3> weightTexture;
        gl::PixelBuffer<uint16_t> edgeBuffer;
 
        unsigned maxWidth;
        unsigned maxHeight;
        std::array<int, 2> edgePosScaleUnif;
};
 
} // namespace openmsx
 
#endif