qquick3dxrmanager_visionos_p.h

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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#ifndef QQUICK3DXRVISIONOSRENDERMANAGER_P_H
#define QQUICK3DXRVISIONOSRENDERMANAGER_P_H
 
#include <QtQuick3DXr/private/qtquick3dxrglobal_p.h>
#include <QObject>
#import <CompositorServices/CompositorServices.h>
#import <Spatial/Spatial.h>
#import <ARKit/ARKit.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.
//
 
QT_BEGIN_NAMESPACE
 
class QQuickWindow;
class QQuick3DXrOrigin;
class QQuick3DXrManager;
class QQuick3DViewport;
class QQuick3DXrInputManager;
class QQuick3DXrAnchorManager;
 
class QQuickRenderControl;
class QQuick3DXrAnimationDriver;
class QRhiTexture;
class QRhiShadingRateMap;
class QRhiRenderPassDescriptor;
 
class CompositorLayer;
 
class QMutex;
template <typename T>
class QMutexLocker;
 
class QQuick3DXrManagerPrivate
{
    Q_DECLARE_PUBLIC(QQuick3DXrManager)
public:
    enum class RenderState {
        Uninitialized,
        Paused,
        Running,
        Invalidated
    };
 
    enum class ArTrackingState {
        Uninitialized,
        Initialized,
        Running,
        Paused,
        Stopped
    };
 
    explicit QQuick3DXrManagerPrivate(QQuick3DXrManager &manager);
    ~QQuick3DXrManagerPrivate();
 
    static QQuick3DXrManagerPrivate *get(QQuick3DXrManager *manager);
 
    bool initialize();
    bool finalizeGraphics(QRhi *rhi);
    bool isReady() const;
 
    bool isGraphicsInitialized() const;
    bool setupGraphics(QQuickWindow *window);
 
    void setupWindow(QQuickWindow *window);
 
    void teardown();
 
    void setMultiViewRenderingEnabled(bool enable);
    bool isMultiViewRenderingEnabled() const;
 
    bool setPassthroughEnabled(bool enable);
    bool isPassthroughEnabled() const { return false; }
    bool supportsPassthrough() const { return false; }
 
    QtQuick3DXr::ReferenceSpace getReferenceSpace() const;
    void setReferenceSpace(QtQuick3DXr::ReferenceSpace newReferenceSpace);
 
    void setDepthSubmissionEnabled(bool enable);
    bool isDepthSubmissionEnabled() const { return true; }
 
    [[nodiscard]] bool isValid() const { return true; }
 
    void getDefaultClipDistances(float &nearClip, float &farClip) const;
 
    void update();
    void processXrEvents();
 
    void processSpatialEvents(const QJsonObject &events);
 
    void setSamples(int samples);
 
    QStringList enabledExtensions() const { return {}; }
    QString runtimeName() const;
    QVersionNumber runtimeVersion() const;
 
    QString errorString() const;
 
    void doRenderFrame() { /* Unused */ }
 
Q_SIGNALS:
    void initialized();
 
private:
    friend class CompositorLayer;
 
    static void prepareAnchorManager(QQuick3DXrAnchorManager *anchorManager, ar_data_providers_t dataProviders);
    static void initAnchorManager(QQuick3DXrAnchorManager *anchorManager);
    static void initInputManager(QQuick3DXrInputManager *im);
    [[nodiscard]] bool renderFrameImpl(QMutexLocker<QMutex> &locker, QWaitCondition &waitCondition);
 
    static void updateCameraImp(simd_float4x4 headTransform, cp_drawable_t drawable, QQuick3DXrOrigin *xrOrigin, int i);
    static void updateCamera(QQuick3DViewport *xrViewport, simd_float4x4 headTransform, cp_drawable_t drawable, QQuick3DXrOrigin *xrOrigin, int i);
    static void updateCameraMultiview(QQuick3DViewport *xrViewport, simd_float4x4 headTransform, cp_drawable_t drawable, QQuick3DXrOrigin *xrOrigin);
 
    void setupShadingRateMap(QQuickWindow *window, QRhiShadingRateMap *srm);
    // Called from the render thread
    void releaseResources();
 
    QQuick3DXrManager *q_ptr = nullptr;
    CompositorLayer *m_compositorLayer = nullptr;
    QRhiTexture *m_rhiDepthTexture = nullptr;
    std::array<QRhiShadingRateMap *, 2> m_srm { nullptr, nullptr };
    QRhiRenderPassDescriptor *m_srmRenderPassDesc = nullptr;
    QThread *m_renderThread = nullptr;
    QPointer<QQuick3DXrInputManager> m_inputManager;
    QPointer<QQuick3DXrAnchorManager> m_anchorManager;
    qint64 m_previousTime = 0;
    qint64 m_nextStepSize = 0;
    bool m_isGraphicsInitialized = false;
    bool m_multiviewRenderingEnabled = true;
    bool m_running = false;
    bool m_arRunning = false;
    bool m_syncDone = false;
};
 
QT_END_NAMESPACE
 
#endif // QQUICK3DXRVISIONOSRENDERMANAGER_P_H