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