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39
40#ifndef QPLATFORMBACKINGSTOREOPENGLSUPPORT_H
41#define QPLATFORMBACKINGSTOREOPENGLSUPPORT_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is part of the QPA API and is not meant to be used
48// in applications. Usage of this API may make your code
49// source and binary incompatible with future versions of Qt.
50//
51
52#ifndef QT_NO_OPENGL
53
54#include <QtOpenGL/qtopenglglobal.h>
55#include <qpa/qplatformbackingstore.h>
56
57#include <QtGui/QOpenGLContext>
58
59QT_BEGIN_NAMESPACE
60
61class QOpenGLTextureBlitter;
62class QOpenGLBackingStore;
63
64class Q_OPENGL_EXPORT QPlatformBackingStoreOpenGLSupport : public QPlatformBackingStoreOpenGLSupportBase
65{
66public:
67 ~QPlatformBackingStoreOpenGLSupport() override;
68 void composeAndFlush(QWindow *window, const QRegion &region, const QPoint &offset,
69 QPlatformTextureList *textures, bool translucentBackground) override;
70 GLuint toTexture(const QRegion &dirtyRegion, QSize *textureSize, QPlatformBackingStore::TextureFlags *flags) const override;
71
72private:
73 QScopedPointer<QOpenGLContext> context;
74 mutable GLuint textureId = 0;
75 mutable QSize textureSize;
76 mutable bool needsSwizzle = false;
77 mutable bool premultiplied = false;
78 QOpenGLTextureBlitter *blitter = nullptr;
79};
80
81Q_OPENGL_EXPORT void qt_registerDefaultPlatformBackingStoreOpenGLSupport();
82
83QT_END_NAMESPACE
84
85#endif // QT_NO_OPENGL
86
87#endif // QPLATFORMBACKINGSTOREOPENGLSUPPORT_H
88