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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Compositor.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef SURFACEBUFFER_H
#define SURFACEBUFFER_H
#include <QtCore/QRect>
#include <QtGui/qopengl.h>
#include <QImage>
#include <QAtomicInt>
#include <wayland-server.h>
QT_BEGIN_NAMESPACE
class QWaylandClientBufferIntegration;
class QWaylandBufferRef;
namespace QtWayland {
class Surface;
class Compositor;
struct surface_buffer_destroy_listener
{
struct wl_listener listener;
class SurfaceBuffer *surfaceBuffer;
};
class SurfaceBuffer
{
public:
SurfaceBuffer(Surface *surface);
~SurfaceBuffer();
void initialize(struct ::wl_resource *bufferResource);
void destructBufferState();
QSize size() const;
bool isShmBuffer() const;
bool isYInverted() const;
inline bool isRegisteredWithBuffer() const { return m_is_registered_for_buffer; }
void sendRelease();
void disown();
void setDisplayed();
inline bool isComitted() const { return m_committed; }
inline void setCommitted() { m_committed = true; }
inline bool isDisplayed() const { return m_is_displayed; }
inline bool textureCreated() const { return m_texture; }
bool isDestroyed() { return m_destroyed; }
void createTexture();
#ifdef QT_COMPOSITOR_WAYLAND_GL
inline GLuint texture() const;
#else
inline uint texture() const;
#endif
void destroyTexture();
inline struct ::wl_resource *waylandBufferHandle() const { return m_buffer; }
void handleAboutToBeDisplayed();
void handleDisplayed();
void bufferWasDestroyed();
void setDestroyIfUnused(bool destroy);
void *handle() const;
QImage image();
private:
void ref();
void deref();
void destroyIfUnused();
Surface *m_surface;
Compositor *m_compositor;
struct ::wl_resource *m_buffer;
struct surface_buffer_destroy_listener m_destroy_listener;
bool m_committed;
bool m_is_registered_for_buffer;
bool m_surface_has_buffer;
bool m_destroyed;
bool m_is_displayed;
#ifdef QT_COMPOSITOR_WAYLAND_GL
GLuint m_texture;
#else
uint m_texture;
#endif
void *m_handle;
mutable bool m_is_shm_resolved;
#if (WAYLAND_VERSION_MAJOR >= 1) && (WAYLAND_VERSION_MINOR >= 2)
mutable struct ::wl_shm_buffer *m_shmBuffer;
#else
mutable struct ::wl_buffer *m_shmBuffer;
#endif
mutable bool m_isSizeResolved;
mutable QSize m_size;
QAtomicInt m_refCount;
bool m_used;
bool m_destroyIfUnused;
QImage m_image;
static void destroy_listener_callback(wl_listener *listener, void *data);
friend class ::QWaylandBufferRef;
};
#ifdef QT_COMPOSITOR_WAYLAND_GL
GLuint SurfaceBuffer::texture() const
{
if (m_buffer)
return m_texture;
return 0;
}
#else
uint SurfaceBuffer::texture() const
{
return 0;
}
#endif
}
QT_END_NAMESPACE
#endif // SURFACEBUFFER_H
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