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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWaylandCompositor module 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 QWLCLIENTBUFFER_P_H
#define QWLCLIENTBUFFER_P_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 <QtCore/QRect>
#include <QtGui/qopengl.h>
#include <QImage>
#include <QAtomicInt>
#include <QtWaylandCompositor/QWaylandSurface>
#include <QtWaylandCompositor/QWaylandBufferRef>
#include <wayland-server-core.h>
QT_BEGIN_NAMESPACE
class QWaylandClientBufferIntegration;
class QWaylandBufferRef;
class QWaylandCompositor;
class QOpenGLTexture;
namespace QtWayland {
struct surface_buffer_destroy_listener
{
struct wl_listener listener;
class ClientBuffer *surfaceBuffer = nullptr;
};
class Q_WAYLAND_COMPOSITOR_EXPORT ClientBuffer
{
public:
ClientBuffer(struct ::wl_resource *bufferResource);
virtual ~ClientBuffer();
virtual QWaylandBufferRef::BufferFormatEgl bufferFormatEgl() const;
virtual QSize size() const = 0;
virtual QWaylandSurface::Origin origin() const = 0;
virtual quintptr lockNativeBuffer() { return 0; }
virtual void unlockNativeBuffer(quintptr native_buffer) const { Q_UNUSED(native_buffer); }
virtual QImage image() const { return QImage(); }
inline bool isCommitted() const { return m_committed; }
virtual void setCommitted(QRegion &damage);
bool isDestroyed() { return m_destroyed; }
inline struct ::wl_resource *waylandBufferHandle() const { return m_buffer; }
bool isSharedMemory() const { return wl_shm_buffer_get(m_buffer); }
#if QT_CONFIG(opengl)
virtual QOpenGLTexture *toOpenGlTexture(int plane = 0) = 0;
#endif
static bool hasContent(ClientBuffer *buffer) { return buffer && buffer->waylandBufferHandle(); }
protected:
void ref();
void deref();
void sendRelease();
void setDestroyed();
struct ::wl_resource *m_buffer = nullptr;
QRegion m_damage;
bool m_textureDirty = false;
private:
bool m_committed = false;
bool m_destroyed = false;
QAtomicInt m_refCount;
friend class ::QWaylandBufferRef;
friend class BufferManager;
};
class Q_WAYLAND_COMPOSITOR_EXPORT SharedMemoryBuffer : public ClientBuffer
{
public:
SharedMemoryBuffer(struct ::wl_resource *bufferResource);
QSize size() const override;
QWaylandSurface::Origin origin() const override;
QImage image() const override;
#if QT_CONFIG(opengl)
QOpenGLTexture *toOpenGlTexture(int plane = 0) override;
private:
QOpenGLTexture *m_shmTexture = nullptr;
#endif
};
}
QT_END_NAMESPACE
#endif // QWLCLIENTBUFFER_P_H
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