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39
40#ifndef QOPENGLCOMPOSITORBACKINGSTORE_H
41#define QOPENGLCOMPOSITORBACKINGSTORE_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 <QtOpenGL/qtopenglglobal.h>
55
56#include <qpa/qplatformbackingstore.h>
57#include <QImage>
58#include <QRegion>
59
60QT_BEGIN_NAMESPACE
61
62class QOpenGLContext;
63class QPlatformTextureList;
64
65class Q_OPENGL_EXPORT QOpenGLCompositorBackingStore : public QPlatformBackingStore
66{
67public:
68 QOpenGLCompositorBackingStore(QWindow *window);
69 ~QOpenGLCompositorBackingStore();
70
71 QPaintDevice *paintDevice() override;
72
73 void beginPaint(const QRegion &region) override;
74
75 void flush(QWindow *window, const QRegion &region, const QPoint &offset) override;
76 void resize(const QSize &size, const QRegion &staticContents) override;
77
78 QImage toImage() const override;
79 void composeAndFlush(QWindow *window, const QRegion &region, const QPoint &offset,
80 QPlatformTextureList *textures,
81 bool translucentBackground) override;
82
83 const QPlatformTextureList *textures() const { return m_textures; }
84
85 void notifyComposited();
86
87private:
88 void updateTexture();
89
90 QWindow *m_window;
91 QImage m_image;
92 QRegion m_dirty;
93 uint m_bsTexture;
94 QOpenGLContext *m_bsTextureContext;
95 QPlatformTextureList *m_textures;
96 QPlatformTextureList *m_lockedWidgetTextures;
97};
98
99QT_END_NAMESPACE
100
101#endif // QOPENGLCOMPOSITORBACKINGSTORE_H
102