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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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>
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();
QSize size() const { return mImage.size(); }
int scale() const Q_DECL_OVERRIDE { return int(mImage.devicePixelRatio()); }
QImage *image() { return &mImage; }
QImage *imageInsideMargins(const QMargins &margins);
private:
QImage mImage;
struct wl_shm_pool *mShmPool;
QMargins mMargins;
QImage *mMarginsImage;
};
class Q_WAYLAND_CLIENT_EXPORT QWaylandShmBackingStore : public QPlatformBackingStore
{
public:
QWaylandShmBackingStore(QWindow *window);
~QWaylandShmBackingStore();
QPaintDevice *paintDevice();
void flush(QWindow *window, const QRegion ®ion, const QPoint &offset);
void resize(const QSize &size, const QRegion &staticContents);
void resize(const QSize &size);
void beginPaint(const QRegion &);
void endPaint();
void hidden();
QWaylandAbstractDecoration *windowDecoration() const;
QMargins windowDecorationMargins() const;
QImage *entireSurface() const;
QImage *contentSurface() const;
void ensureSize();
QWaylandWindow *waylandWindow() const;
void iterateBuffer();
#ifndef QT_NO_OPENGL
QImage toImage() const Q_DECL_OVERRIDE;
#endif
private:
void updateDecorations();
QWaylandDisplay *mDisplay;
QWaylandShmBuffer *mFrontBuffer;
QWaylandShmBuffer *mBackBuffer;
bool mFrontBufferIsDirty;
bool mPainting;
QMutex mMutex;
QSize mRequestedSize;
Qt::WindowFlags mCurrentWindowFlags;
static const struct wl_callback_listener frameCallbackListener;
static void done(void *data,
struct wl_callback *callback,
uint32_t time);
struct wl_callback *mFrameCallback;
};
}
QT_END_NAMESPACE
#endif
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