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// Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QT3DRENDER_SCENE3DRENDERER_P_H
#define QT3DRENDER_SCENE3DRENDERER_P_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/QObject>
#include <QtCore/qsize.h>
#include <QtCore/QMutex>
#include <QtCore/QSemaphore>
#include <scene3ditem_p.h>
QT_BEGIN_NAMESPACE
class QRhi;
class QRhiTextureRenderTarget;
class QRhiRenderBuffer;
class QRhiTexture;
class QRhiRenderPassDescriptor;
class QQuickWindow;
class QSGTexture;
class QOpenGLFramebufferObject;
namespace Qt3DCore {
class QAspectEngine;
}
namespace Qt3DRender {
class QRenderAspect;
class Scene3DCleaner;
class Scene3DSGNode;
namespace Render {
class AbstractRenderer;
}
class Scene3DRenderer : public QObject
{
Q_OBJECT
public:
Scene3DRenderer();
~Scene3DRenderer();
Scene3DSGNode *sgNode() const;
void setCleanerHelper(Scene3DCleaner *cleaner);
void allowRender();
void setCompositingMode(Scene3DItem::CompositingMode mode);
void setSkipFrame(bool skip);
void init(Scene3DItem *item, Qt3DCore::QAspectEngine *aspectEngine, QRenderAspect *renderAspect);
void setMultisample(bool multisample);
void setBoundingSize(const QSize &size);
bool multisample() const { return m_multisample; }
QSize boundingSize() const { return m_boundingRectSize; }
bool isYUp() const;
void init(Qt3DCore::QAspectEngine *aspectEngine, QRenderAspect *renderAspect);
void beforeSynchronize();
void setWindow(QQuickWindow *window);
bool hasShutdown() const { return !m_needsShutdown; }
QRenderAspect *renderAspect() const { return m_renderAspect; }
public Q_SLOTS:
void shutdown();
private:
class QuickRenderer
{
public:
// ctor/dtor cannot be inlined because of QScopedPointer with forward
// declared class
QuickRenderer();
virtual ~QuickRenderer();
virtual void initialize(Scene3DRenderer *scene3DRenderer,
Qt3DRender::Render::AbstractRenderer *renderer) = 0;
virtual void beforeSynchronize(Scene3DRenderer *scene3DRenderer) = 0;
virtual void beforeRendering(Scene3DRenderer *scene3DRenderer) = 0;
virtual void beforeRenderPassRecording(Scene3DRenderer *scene3DRenderer) = 0;
virtual void shutdown(Scene3DRenderer *sceneRenderer) = 0;
virtual bool isYUp() const = 0;
protected:
bool m_lastMultisample = false;
QSize m_lastSize;
QScopedPointer<QSGTexture> m_texture;
Qt3DRender::Render::AbstractRenderer *m_renderer = nullptr;
};
class GLRenderer : public QuickRenderer
{
public:
QOpenGLFramebufferObject *createMultisampledFramebufferObject(const QSize &size);
QOpenGLFramebufferObject *createFramebufferObject(const QSize &size);
void initialize(Scene3DRenderer *scene3DRenderer,
Qt3DRender::Render::AbstractRenderer *renderer) override;
void beforeSynchronize(Scene3DRenderer *scene3DRenderer) override;
void beforeRendering(Scene3DRenderer *scene3DRenderer) override;
void beforeRenderPassRecording(Scene3DRenderer *scene3DRenderer) override;
void shutdown(Scene3DRenderer *sceneRenderer) override;
bool isYUp() const override { return true; };
private:
QScopedPointer<QOpenGLFramebufferObject> m_multisampledFBO;
QScopedPointer<QOpenGLFramebufferObject> m_finalFBO;
bool m_multisample = false;
quint32 m_textureId = 0;
};
class RHIRenderer : public QuickRenderer
{
public:
void initialize(Scene3DRenderer *scene3DRenderer,
Qt3DRender::Render::AbstractRenderer *renderer) override;
void beforeSynchronize(Scene3DRenderer *scene3DRenderer) override;
void beforeRendering(Scene3DRenderer *scene3DRenderer) override;
void beforeRenderPassRecording(Scene3DRenderer *scene3DRenderer) override;
void shutdown(Scene3DRenderer *sceneRenderer) override;
bool isYUp() const override;
private:
void releaseRHIResources();
QRhiTexture *m_rhiTexture = nullptr;
QRhiRenderBuffer *m_rhiColorRenderBuffer = nullptr;
QRhiRenderBuffer *m_rhiMSAARenderBuffer = nullptr;
QRhiRenderBuffer *m_rhiDepthRenderBuffer = nullptr;
QRhiTextureRenderTarget *m_rhiRenderTarget = nullptr;
QRhiRenderPassDescriptor *m_rhiRenderTargetPassDescriptor = nullptr;
QRhi *m_rhi = nullptr;
};
Qt3DCore::QAspectEngine *m_aspectEngine; // Will be released by the Scene3DItem
QRenderAspect *m_renderAspect; // Will be released by the aspectEngine
Scene3DSGNode *m_node; // Will be released by the QtQuick SceneGraph
QQuickWindow *m_window;
QMutex m_windowMutex;
QSize m_lastSize;
QSize m_boundingRectSize;
bool m_multisample;
bool m_lastMultisample;
bool m_needsShutdown;
bool m_shouldRender;
bool m_dirtyViews;
bool m_skipFrame;
QSemaphore m_allowRendering;
Scene3DItem::CompositingMode m_compositingMode;
bool m_resetRequested = false;
QuickRenderer *m_quickRenderer = nullptr;
friend class Scene3DItem;
};
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_SCENE3DRENDERER_P_H
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