blob: e01632daf757da2ae9f7543ed580929b74202b47 [file] [log] [blame]
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#ifndef QWAYLANDSHMBACKINGSTORE_H
#define QWAYLANDSHMBACKINGSTORE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtWaylandClient/private/qwaylandbuffer_p.h>
#include <qpa/qplatformbackingstore.h>
#include <QtGui/QImage>
#include <qpa/qplatformwindow.h>
#include <QMutex>
#include <list>
QT_BEGIN_NAMESPACE
namespace QtWaylandClient {
class QWaylandDisplay;
class QWaylandAbstractDecoration;
class QWaylandWindow;
class Q_WAYLAND_CLIENT_EXPORT QWaylandShmBuffer : public QWaylandBuffer {
public:
QWaylandShmBuffer(QWaylandDisplay *display,
const QSize &size, QImage::Format format, int scale = 1);
~QWaylandShmBuffer() override;
QSize size() const override { return mImage.size(); }
int scale() const override { return int(mImage.devicePixelRatio()); }
QImage *image() { return &mImage; }
QImage *imageInsideMargins(const QMargins &margins);
private:
QImage mImage;
struct wl_shm_pool *mShmPool = nullptr;
QMargins mMargins;
QImage *mMarginsImage = nullptr;
};
class Q_WAYLAND_CLIENT_EXPORT QWaylandShmBackingStore : public QPlatformBackingStore
{
public:
QWaylandShmBackingStore(QWindow *window, QWaylandDisplay *display);
~QWaylandShmBackingStore() override;
QPaintDevice *paintDevice() override;
void flush(QWindow *window, const QRegion &region, const QPoint &offset) override;
void resize(const QSize &size, const QRegion &staticContents) override;
void resize(const QSize &size);
void beginPaint(const QRegion &region) override;
void endPaint() override;
QWaylandAbstractDecoration *windowDecoration() const;
QMargins windowDecorationMargins() const;
QImage *entireSurface() const;
QImage *contentSurface() const;
void ensureSize();
QWaylandWindow *waylandWindow() const;
void iterateBuffer();
#if QT_CONFIG(opengl)
QImage toImage() const override;
#endif
private:
void updateDecorations();
QWaylandShmBuffer *getBuffer(const QSize &size);
QWaylandDisplay *mDisplay = nullptr;
std::list<QWaylandShmBuffer *> mBuffers;
QWaylandShmBuffer *mFrontBuffer = nullptr;
QWaylandShmBuffer *mBackBuffer = nullptr;
bool mPainting = false;
bool mPendingFlush = false;
QRegion mPendingRegion;
QMutex mMutex;
QSize mRequestedSize;
Qt::WindowFlags mCurrentWindowFlags;
};
}
QT_END_NAMESPACE
#endif