7c2cd35965
Added atomic_flags for renderer buffers to prevent concurrent usage and overloading the renderer with draw requests when it's busy.
68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
#ifndef QT_RENDERERCONTAINER_HPP
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#define QT_RENDERERCONTAINER_HPP
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#include <QStackedWidget>
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#include <QKeyEvent>
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#include <QEvent>
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#include <vector>
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#include <atomic>
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namespace Ui {
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class RendererStack;
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}
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class RendererStack : public QStackedWidget
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{
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Q_OBJECT
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public:
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explicit RendererStack(QWidget *parent = nullptr);
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~RendererStack();
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void mousePressEvent(QMouseEvent* event) override;
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void mouseReleaseEvent(QMouseEvent* event) override;
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void mouseMoveEvent(QMouseEvent* event) override;
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void wheelEvent(QWheelEvent *event) override;
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void leaveEvent(QEvent *event) override;
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void keyPressEvent(QKeyEvent* event) override
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{
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event->ignore();
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}
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void keyReleaseEvent(QKeyEvent* event) override
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{
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event->ignore();
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}
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signals:
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void blitToRenderer(const QImage& img, int, int, int, int, std::atomic_flag* in_use);
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public slots:
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void blit(int x, int y, int w, int h);
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void mousePoll();
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private slots:
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void on_RendererStack_currentChanged(int arg1);
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private:
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Ui::RendererStack *ui;
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struct mouseinputdata {
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int deltax, deltay, deltaz;
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int mousebuttons;
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};
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mouseinputdata mousedata;
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int x, y, w, h, sx, sy, sw, sh;
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// always have a qimage available for writing, which is _probably_ unused
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// worst case - it will just get reallocated because it's refcounter is > 1
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// when calling bits();
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int currentBuf = 0;
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QVector<QImage> imagebufs;
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/* atomic flag for each buffer to not overload the renderer */
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std::vector<std::atomic_flag> buffers_in_use;
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};
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#endif // QT_RENDERERCONTAINER_HPP
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