416b461291
1) Do not call Video::paint() with a scale != 1:1 2) For this reason we need to draw elsewhere 3) and finally scale the whole thing just once to the widget 4) QPixmap vs QImage: cant see the difference 5) QOpenGLWidget is 2x faster than QWidget but it has some flickering when resizing On my i5-4460 CPU @ 3.20GHz with x2 zoom TEXT: 4-5% CPU usage HGR: 6-7% CPU usage Signed-off-by: Andrea Odetti <mariofutire@gmail.com>
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
#ifndef VIDEO_H
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#define VIDEO_H
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#include <QOpenGLWidget>
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#include <memory>
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#define VIDEO_BASECLASS QOpenGLWidget
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//#define VIDEO_BASECLASS QWidget
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class GraphicsCache;
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class Video : public VIDEO_BASECLASS
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{
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Q_OBJECT
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public:
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explicit Video(QWidget *parent = 0);
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signals:
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public slots:
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protected:
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virtual void paintEvent(QPaintEvent *event);
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virtual void keyPressEvent(QKeyEvent *event);
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virtual void keyReleaseEvent(QKeyEvent *event);
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private:
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bool Update40ColCell(QPainter & painter, int x, int y, int xpixel, int ypixel, int offset);
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bool Update80ColCell(QPainter & painter, int x, int y, int xpixel, int ypixel, int offset);
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bool UpdateLoResCell(QPainter & painter, int x, int y, int xpixel, int ypixel, int offset);
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bool UpdateDLoResCell(QPainter & painter, int x, int y, int xpixel, int ypixel, int offset);
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bool UpdateHiResCell(QPainter & painter, int x, int y, int xpixel, int ypixel, int offset);
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bool UpdateDHiResCell(QPainter & painter, int x, int y, int xpixel, int ypixel, int offset);
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// paint the whole screen
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// no scale applied
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void paint(QPainter & painter);
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std::shared_ptr<const GraphicsCache> myGraphicsCache;
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};
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#endif // VIDEO_H
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