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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QSSGSCENERENDERER_H
#define QSSGSCENERENDERER_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 <ssg/qssgrendercontextcore.h>
#include <qsgtextureprovider.h>
#include <qsgrendernode.h>
#include <QSGSimpleTextureNode>
#include <QtQuick3D/private/qquick3dviewport_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrenderlayer_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrhieffectsystem_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrenderer_p.h>
#include <QtCore/qpointer.h>
#include <optional>
#include "qquick3dsceneenvironment_p.h"
QT_BEGIN_NAMESPACE
class QQuick3DSceneManager;
class QQuick3DViewport;
class QQuick3DSceneRenderer
{
using PickResultList = QVarLengthArray<QSSGRenderPickResult, 20>;
public:
explicit QQuick3DSceneRenderer(const std::shared_ptr<QSSGRenderContextInterface> &rci);
~QQuick3DSceneRenderer();
static QSSGRenderLayer::TonemapMode getTonemapMode(const QQuick3DSceneEnvironment &environment)
{
if (environment.useBuiltinTonemapper())
return QSSGRenderLayer::TonemapMode(environment.tonemapMode());
// Special case for the extend scene environment...
return (environment.tonemapMode() != QQuick3DSceneEnvironment::QQuick3DEnvironmentTonemapModes::TonemapModeNone) ? QSSGRenderLayer::TonemapMode::Custom
: QSSGRenderLayer::TonemapMode::None;
}
protected:
QRhiTexture *renderToRhiTexture(QQuickWindow *qw);
void beginFrame();
void endFrame();
void rhiPrepare(const QRect &viewport, qreal displayPixelRatio);
void rhiRender();
void synchronize(QQuick3DViewport *view3D, const QSize &size, float dpr);
void invalidateFramebufferObject();
QSize surfaceSize() const { return m_surfaceSize; }
void releaseCachedResources();
std::optional<QSSGRenderRay> getRayFromViewportPos(const QPointF &pos);
PickResultList syncPick(const QSSGRenderRay &ray);
PickResultList syncPickOne(const QSSGRenderRay &ray, QSSGRenderNode *node);
PickResultList syncPickSubset(const QSSGRenderRay &ray, QVarLengthArray<QSSGRenderNode *> subset);
PickResultList syncPickAll(const QSSGRenderRay &ray);
void setGlobalPickingEnabled(bool isEnabled);
QQuick3DRenderStats *renderStats();
private:
void releaseAaDependentRhiResources();
void updateLayerNode(QSSGRenderLayer &layerNode,
const QQuick3DViewport &view3D,
const QList<QSSGRenderGraphObject *> &resourceLoaders);
void addNodeToLayer(QSSGRenderNode *node);
void removeNodeFromLayer(QSSGRenderNode *node);
void maybeSetupLightmapBaking(QQuick3DViewport *view3D);
std::shared_ptr<QSSGRenderContextInterface> m_sgContext;
QSSGRenderLayer *m_layer = nullptr;
QPointer<QQuick3DWindowAttachment> winAttacment;
QSize m_surfaceSize;
SGFramebufferObjectNode *fboNode = nullptr;
bool m_aaIsDirty = true;
bool m_temporalIsDirty = false;
bool m_timeBasedAA = false;
// RHI
QRhiTexture *m_texture = nullptr;
// the rt is set up to output into m_texture or m_ssaaTexture or m_msaaRenderBuffer(+resolve into m_texture)
QRhiTextureRenderTarget *m_textureRenderTarget = nullptr;
QRhiRenderPassDescriptor *m_textureRenderPassDescriptor = nullptr;
// used by the draw quad that does m_ssaaTexture -> m_texture
QRhiTextureRenderTarget *m_ssaaTextureToTextureRenderTarget = nullptr;
QRhiRenderPassDescriptor *m_ssaaTextureToTextureRenderPassDescriptor = nullptr;
QRhiRenderBuffer *m_msaaRenderBufferLegacy = nullptr;
QRhiTexture *m_msaaRenderTexture = nullptr;
QRhiTexture *m_msaaMultiViewRenderBuffer = nullptr;
QRhiTexture *m_ssaaTexture = nullptr;
QRhiTexture *m_temporalAATexture = nullptr;
QRhiTexture *m_prevTempAATexture = nullptr;
QRhiTextureRenderTarget *m_temporalAARenderTarget = nullptr;
QRhiRenderPassDescriptor *m_temporalAARenderPassDescriptor = nullptr;
QRhiRenderBuffer *m_depthStencilBuffer = nullptr;
QRhiTexture *m_multiViewDepthStencilBuffer = nullptr;
bool m_textureNeedsFlip = true;
QSSGRenderLayer::Background m_backgroundMode = QSSGRenderLayer::Background::Unspecified;
QColor m_userBackgroundColor = Qt::black;
QColor m_linearBackgroundColor = Qt::black;
QColor m_tonemappedBackgroundColor = Qt::black;
int m_samples = 1;
QSSGRhiEffectSystem *m_effectSystem = nullptr;
QPointer<QQuick3DRenderStats> m_renderStats;
QSSGRenderNode *m_sceneRootNode = nullptr;
QSSGRenderNode *m_importRootNode = nullptr;
bool m_prepared = false;
bool m_lightmapBakingFromCmdRequested = false;
bool m_lightmapDenoisingFromCmdRequested = false;
int m_requestedFramesCount = 0;
bool m_postProcessingStack = false;
bool m_useFBO = false;
Q_QUICK3D_PROFILE_ID
friend class SGFramebufferObjectNode;
friend class QQuick3DSGRenderNode;
friend class QQuick3DSGDirectRenderer;
friend class QQuick3DViewport;
friend struct ViewportTransformHelper;
friend class QQuick3DRenderLayerHelpers;
};
class Q_QUICK3D_EXPORT QQuick3DRenderLayerHelpers
{
public:
static void updateLayerNodeHelper(const QQuick3DViewport &view3D,
const std::shared_ptr<QSSGRenderContextInterface> &rci,
QSSGRenderLayer &layerNode,
bool &aaIsDirty,
bool &temporalIsDirty);
};
class SGFramebufferObjectNode final : public QSGTextureProvider, public QSGSimpleTextureNode
{
Q_OBJECT
public:
SGFramebufferObjectNode();
~SGFramebufferObjectNode() override;
void scheduleRender();
QSGTexture *texture() const override;
void preprocess() override;
public Q_SLOTS:
void render();
void handleScreenChange();
public:
QQuickWindow *window;
QQuick3DSceneRenderer *renderer;
QQuick3DViewport *quickFbo;
bool renderPending;
bool invalidatePending;
qreal devicePixelRatio;
};
class QQuick3DSGRenderNode final : public QSGRenderNode
{
public:
~QQuick3DSGRenderNode();
void prepare() override;
StateFlags changedStates() const override;
void render(const RenderState *state) override;
void releaseResources() override;
RenderingFlags flags() const override;
public:
QQuickWindow *window = nullptr;
QQuick3DSceneRenderer *renderer = nullptr;
};
class QQuick3DSGDirectRenderer : public QObject
{
Q_OBJECT
public:
enum QQuick3DSGDirectRendererMode {
Underlay,
Overlay
};
QQuick3DSGDirectRenderer(QQuick3DSceneRenderer *renderer, QQuickWindow *window, QQuick3DSGDirectRendererMode mode = Underlay);
~QQuick3DSGDirectRenderer();
QQuick3DSceneRenderer *renderer() { return m_renderer; }
void setViewport(const QRectF &viewport);
void requestRender();
void setVisibility(bool visible);
void preSynchronize();
private Q_SLOTS:
void prepare();
void render();
private:
QQuick3DSceneRenderer *m_renderer = nullptr;
QQuickWindow *m_window = nullptr;
QRectF m_viewport;
bool m_isVisible = true;
QRhiTexture *m_rhiTexture = nullptr;
bool renderPending = false;
};
QT_END_NAMESPACE
#endif // QSSGSCENERENDERER_H
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