qwlserverbufferintegration_p.h

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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#ifndef QWAYLANDSERVERBUFFERINTEGRATION_H
#define QWAYLANDSERVERBUFFERINTEGRATION_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/private/qglobal_p.h>
#include <QtCore/QSize>
#include <QtGui/qopengl.h>
 
#include <QtWaylandCompositor/qtwaylandcompositorglobal.h>
 
struct wl_client;
struct wl_resource;
 
QT_BEGIN_NAMESPACE
 
class QWaylandCompositor;
class QOpenGLContext;
class QOpenGLTexture;
class QImage;
 
namespace QtWayland {
class Display;
 
class Q_WAYLANDCOMPOSITOR_EXPORT ServerBuffer
{
public:
    enum Format {
        RGBA32,
        A8,
        Custom
    };
 
    ServerBuffer(const QSize &size, ServerBuffer::Format format);
    virtual ~ServerBuffer();
 
    virtual struct ::wl_resource *resourceForClient(struct ::wl_client *) = 0;
    virtual bool bufferInUse() { return true; }
 
    virtual QOpenGLTexture *toOpenGlTexture() = 0;
    virtual void releaseOpenGlTexture() {}
 
    virtual bool isYInverted() const;
 
    QSize size() const;
    Format format() const;
protected:
    QSize m_size;
    Format m_format;
};
 
class Q_WAYLANDCOMPOSITOR_EXPORT ServerBufferIntegration
{
public:
    ServerBufferIntegration();
    virtual ~ServerBufferIntegration();
 
    virtual bool initializeHardware(QWaylandCompositor *);
 
    virtual bool supportsFormat(ServerBuffer::Format format) const = 0;
    virtual ServerBuffer *createServerBufferFromImage(const QImage &qimage, ServerBuffer::Format format) = 0;
    virtual ServerBuffer *createServerBufferFromData(QByteArrayView view, const QSize &size,
                                                     uint glInternalFormat)
    {
        Q_UNUSED(view);
        Q_UNUSED(size);
        Q_UNUSED(glInternalFormat);
        return nullptr;
    }
};
 
}
 
QT_END_NAMESPACE
 
#endif //QWAYLANDSERVERBUFFERINTEGRATION_H