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9 ** GNU Lesser General Public License Usage
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21 ** GNU General Public License Usage
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40 ****************************************************************************/
42 #ifndef QWAYLANDSHMBACKINGSTORE_H
43 #define QWAYLANDSHMBACKINGSTORE_H
45 #include "qwaylandbuffer.h"
47 #include "qwaylanddecoration.h"
48 #include "qwaylandwindow.h"
50 #include <qpa/qplatformbackingstore.h>
51 #include <QtGui/QImage>
52 #include <qpa/qplatformwindow.h>
56 class QWaylandDisplay;
58 class QWaylandShmBuffer : public QWaylandBuffer {
60 QWaylandShmBuffer(QWaylandDisplay *display,
61 const QSize &size, QImage::Format format);
63 QSize size() const { return mImage.size(); }
64 QImage *image() { return &mImage; }
66 QImage *imageInsideMargins(const QMargins &margins);
69 struct wl_shm_pool *mShmPool;
71 QImage *mMarginsImage;
74 class QWaylandShmBackingStore : public QPlatformBackingStore
77 QWaylandShmBackingStore(QWindow *window);
78 ~QWaylandShmBackingStore();
80 QPaintDevice *paintDevice();
81 void flush(QWindow *window, const QRegion ®ion, const QPoint &offset);
82 void resize(const QSize &size, const QRegion &staticContents);
83 void resize(const QSize &size);
84 void beginPaint(const QRegion &);
87 QMargins windowDecorationMargins() const;
88 QImage *entireSurface() const;
91 QWaylandWindow *waylandWindow() const;
95 QWaylandDisplay *mDisplay;
96 QWaylandShmBuffer *mFrontBuffer;
97 QWaylandShmBuffer *mBackBuffer;
98 bool mFrontBufferIsDirty;
101 QWaylandDecoration *mWindowDecoration;
102 QSize mRequestedSize;
103 Qt::WindowFlags mCurrentWindowFlags;
105 static const struct wl_callback_listener frameCallbackListener;
106 static void done(void *data,
107 struct wl_callback *callback,
109 struct wl_callback *mFrameCallback;
112 inline QMargins QWaylandShmBackingStore::windowDecorationMargins() const
114 if (mWindowDecoration)
115 return mWindowDecoration->margins();
119 inline QWaylandWindow *QWaylandShmBackingStore::waylandWindow() const
121 return static_cast<QWaylandWindow *>(window()->handle());