qabstractopenxrgraphics_p.h

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// Copyright (C) 2024 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

// Qt-Security score:significant reason:default

#ifndef QABSTRACTOPENXRGRAPHICS_H

#define QABSTRACTOPENXRGRAPHICS_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 <QtQuick3DXr/qtquick3dxrglobal.h>

#include <openxr/openxr.h>

#include <QtCore/QVector>

#include <QtQuick/QQuickRenderTarget>

QT_BEGIN_NAMESPACE

class QRhi;

class QQuickWindow;

class QQuickGraphicsConfiguration;

class QAbstractOpenXRGraphics

public:

    QAbstractOpenXRGraphics();

    virtual ~QAbstractOpenXRGraphics() { }

    virtual bool initialize(const QVector<XrExtensionProperties> &extensions) = 0;

    virtual QVector<const char *> getRequiredExtensions() const = 0;

    virtual const XrBaseInStructure* handle() const = 0;

    virtual bool setupGraphics(const XrInstance &instance,

                               XrSystemId &systemId,

                               const QQuickGraphicsConfiguration &quickConfig) = 0;

    virtual void setupWindow(QQuickWindow *);

    virtual bool finializeGraphics(QRhi *rhi) = 0;

    virtual int64_t colorSwapchainFormat(const QVector<int64_t> &swapchainFormats) const = 0;

    virtual int64_t depthSwapchainFormat(const QVector<int64_t> &swapchainFormats) const = 0;

    virtual QVector<XrSwapchainImageBaseHeader*> allocateSwapchainImages(int count,

                                                                         XrSwapchain swapchain) = 0;

    virtual QQuickRenderTarget renderTarget(const XrSwapchainSubImage &subImage,

                                            const XrSwapchainImageBaseHeader *swapchainImage,

                                            quint64 swapchainFormat,

                                            int samples,

                                            int arraySize,

                                            const XrSwapchainImageBaseHeader *depthSwapchainImage,

                                            quint64 depthSwapchainFormat) const = 0;

    virtual QRhi *rhi() const = 0;

    virtual void releaseResources() { }

    static bool hasExtension(const QVector<XrExtensionProperties> &extensions, const char *extensionName);

};

QT_END_NAMESPACE

#endif // QABSTRACTOPENXRGRAPHICS_H