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39
40#ifndef QSGSOFTWARETHREADEDRENDERLOOP_H
41#define QSGSOFTWARETHREADEDRENDERLOOP_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <private/qsgrenderloop_p.h>
55
56QT_BEGIN_NAMESPACE
57
58class QSGSoftwareRenderThread;
59class QSGSoftwareContext;
60
61class QSGSoftwareThreadedRenderLoop : public QSGRenderLoop
62{
63 Q_OBJECT
64public:
65 QSGSoftwareThreadedRenderLoop();
66 ~QSGSoftwareThreadedRenderLoop();
67
68 void show(QQuickWindow *window) override;
69 void hide(QQuickWindow *window) override;
70 void resize(QQuickWindow *window) override;
71 void windowDestroyed(QQuickWindow *window) override;
72 void exposureChanged(QQuickWindow *window) override;
73 QImage grab(QQuickWindow *window) override;
74 void update(QQuickWindow *window) override;
75 void maybeUpdate(QQuickWindow *window) override;
76 void handleUpdateRequest(QQuickWindow *window) override;
77 QAnimationDriver *animationDriver() const override;
78 QSGContext *sceneGraphContext() const override;
79 QSGRenderContext *createRenderContext(QSGContext *) const override;
80 void releaseResources(QQuickWindow *window) override;
81 void postJob(QQuickWindow *window, QRunnable *job) override;
82 QSurface::SurfaceType windowSurfaceType() const override;
83 bool interleaveIncubation() const override;
84 int flags() const override;
85
86 bool event(QEvent *e) override;
87
88public Q_SLOTS:
89 void onAnimationStarted();
90 void onAnimationStopped();
91
92private:
93 struct WindowData {
94 QQuickWindow *window;
95 QSGSoftwareRenderThread *thread;
96 uint updateDuringSync : 1;
97 uint forceRenderPass : 1;
98 };
99
100 void startOrStopAnimationTimer();
101 void handleExposure(QQuickWindow *window);
102 void handleObscurity(WindowData *w);
103 void scheduleUpdate(WindowData *w);
104 void handleResourceRelease(WindowData *w, bool destroying);
105 void polishAndSync(WindowData *w, bool inExpose);
106
107 QSGSoftwareContext *m_sg;
108 QAnimationDriver *m_anim;
109 int animationTimer = 0;
110 bool lockedForSync = false;
111 QVector<WindowData> m_windows;
112
113 friend class QSGSoftwareRenderThread;
114};
115
116QT_END_NAMESPACE
117
118#endif // QSGSOFTWARETHREADEDRENDERLOOP_H
119

source code of qtdeclarative/src/quick/scenegraph/adaptations/software/qsgsoftwarethreadedrenderloop_p.h