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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
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**
**
****************************************************************************/
#ifndef SHAREDTEXTUREPROVIDER_H
#define SHAREDTEXTUREPROVIDER_H
#include <QOpenGLFunctions>
#include <QQuickImageProvider>
#include <QtQuick/QSGTexture>
#include <QScopedPointer>
#include <QHash>
#include <QtWaylandClient/private/qwaylandserverbufferintegration_p.h>
QT_BEGIN_NAMESPACE
class TextureSharingExtension;
class SharedTextureRegistry : public QObject
{
Q_OBJECT
public:
SharedTextureRegistry();
~SharedTextureRegistry() override;
const QtWaylandClient::QWaylandServerBuffer *bufferForId(const QString &id) const;
void requestBuffer(const QString &id);
void abandonBuffer(const QString &id);
static bool preinitialize();
public slots:
void receiveBuffer(QtWaylandClient::QWaylandServerBuffer *buffer, const QString &id);
signals:
void replyReceived(const QString &id);
private slots:
void handleExtensionActive();
private:
TextureSharingExtension *m_extension = nullptr;
QHash<QString, QtWaylandClient::QWaylandServerBuffer *> m_buffers;
QStringList m_pendingBuffers;
};
class SharedTextureProvider : public QQuickAsyncImageProvider
{
public:
SharedTextureProvider();
~SharedTextureProvider() override;
QQuickImageResponse *requestImageResponse(const QString &id, const QSize &requestedSize) override;
private:
SharedTextureRegistry *m_registry = nullptr;
bool m_sharingAvailable = false;
};
class SharedTexture : public QSGTexture
{
Q_OBJECT
public:
SharedTexture(QtWaylandClient::QWaylandServerBuffer *buffer);
int textureId() const override;
QSize textureSize() const override;
bool hasAlphaChannel() const override;
bool hasMipmaps() const override;
void bind() override;
private:
void updateGLTexture() const;
QtWaylandClient::QWaylandServerBuffer *m_buffer = nullptr;
mutable QOpenGLTexture *m_tex = nullptr;
};
QT_END_NAMESPACE
#endif // SHAREDTEXTUREPROVIDER_H
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