1// Copyright (C) 2019 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
3
4#ifndef QSSGVIEW3D_H
5#define QSSGVIEW3D_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QtQuick/QQuickItem>
19#include <QtCore/qurl.h>
20
21#include <QtQuick3D/qtquick3dglobal.h>
22#include <QtQuick3D/private/qquick3dpickresult_p.h>
23#if QT_CONFIG(quick_shadereffect)
24#include <QtQuick/private/qquickshadereffectsource_p.h>
25#endif
26
27#include <QtQuick3DRuntimeRender/private/qssgrenderpickresult_p.h>
28
29#include "qquick3dsceneenvironment_p.h"
30#include "qquick3drenderstats_p.h"
31#include "qquick3dlightmapbaker_p.h"
32
33QT_BEGIN_NAMESPACE
34
35class QSSGView3DPrivate;
36class QQuick3DCamera;
37class QQuick3DSceneEnvironment;
38class QQuick3DNode;
39class QQuick3DSceneRootNode;
40class QQuick3DSceneRenderer;
41class QQuick3DRenderStats;
42class QQuick3DSceneManager;
43
44class SGFramebufferObjectNode;
45class QQuick3DSGRenderNode;
46class QQuick3DSGDirectRenderer;
47
48class Q_QUICK3D_EXPORT QQuick3DViewport : public QQuickItem
49{
50 Q_OBJECT
51 Q_PROPERTY(QQmlListProperty<QObject> data READ data DESIGNABLE false FINAL)
52 Q_PROPERTY(QQuick3DCamera *camera READ camera WRITE setCamera NOTIFY cameraChanged FINAL)
53 Q_PROPERTY(QQuick3DSceneEnvironment *environment READ environment WRITE setEnvironment NOTIFY environmentChanged FINAL)
54 Q_PROPERTY(QQuick3DNode *scene READ scene NOTIFY sceneChanged)
55 Q_PROPERTY(QQuick3DNode *importScene READ importScene WRITE setImportScene NOTIFY importSceneChanged FINAL)
56 Q_PROPERTY(RenderMode renderMode READ renderMode WRITE setRenderMode NOTIFY renderModeChanged FINAL)
57#if QT_CONFIG(quick_shadereffect)
58 Q_PROPERTY(QQuickShaderEffectSource::Format renderFormat READ renderFormat WRITE setRenderFormat NOTIFY renderFormatChanged FINAL REVISION(6, 4))
59#endif
60 Q_PROPERTY(QQuick3DRenderStats *renderStats READ renderStats CONSTANT)
61 Q_PROPERTY(QQmlListProperty<QQuick3DObject> extensions READ extensions FINAL REVISION(6, 6))
62 Q_PROPERTY(int explicitTextureWidth READ explicitTextureWidth WRITE setExplicitTextureWidth NOTIFY explicitTextureWidthChanged FINAL REVISION(6, 7))
63 Q_PROPERTY(int explicitTextureHeight READ explicitTextureHeight WRITE setExplicitTextureHeight NOTIFY explicitTextureHeightChanged FINAL REVISION(6, 7))
64 Q_PROPERTY(QSize effectiveTextureSize READ effectiveTextureSize NOTIFY effectiveTextureSizeChanged FINAL REVISION(6, 7))
65 Q_CLASSINFO("DefaultProperty", "data")
66
67 QML_NAMED_ELEMENT(View3D)
68
69public:
70 enum RenderMode {
71 Offscreen,
72 Underlay,
73 Overlay,
74 Inline
75 };
76 Q_ENUM(RenderMode)
77
78 explicit QQuick3DViewport(QQuickItem *parent = nullptr);
79 ~QQuick3DViewport() override;
80
81 QQmlListProperty<QObject> data();
82
83 QQuick3DCamera *camera() const;
84 QQuick3DSceneEnvironment *environment() const;
85 QQuick3DNode *scene() const;
86 QQuick3DNode *importScene() const;
87 RenderMode renderMode() const;
88#if QT_CONFIG(quick_shadereffect)
89 Q_REVISION(6, 4) QQuickShaderEffectSource::Format renderFormat() const;
90#endif
91 QQuick3DRenderStats *renderStats() const;
92
93 QQuick3DSceneRenderer *createRenderer() const;
94
95 bool isTextureProvider() const override;
96 QSGTextureProvider *textureProvider() const override;
97 void releaseResources() override;
98
99 Q_INVOKABLE QVector3D mapFrom3DScene(const QVector3D &scenePos) const;
100 Q_INVOKABLE QVector3D mapTo3DScene(const QVector3D &viewPos) const;
101
102 Q_INVOKABLE QQuick3DPickResult pick(float x, float y) const;
103 Q_REVISION(6, 8) Q_INVOKABLE QQuick3DPickResult pick(float x, float y, QQuick3DModel *model) const;
104 Q_REVISION(6, 8) Q_INVOKABLE QList<QQuick3DPickResult> pickSubset(float x, float y, const QJSValue &models) const;
105 Q_REVISION(6, 2) Q_INVOKABLE QList<QQuick3DPickResult> pickAll(float x, float y) const;
106 Q_REVISION(6, 2) Q_INVOKABLE QQuick3DPickResult rayPick(const QVector3D &origin, const QVector3D &direction) const;
107 Q_REVISION(6, 2) Q_INVOKABLE QList<QQuick3DPickResult> rayPickAll(const QVector3D &origin, const QVector3D &direction) const;
108
109 void processPointerEventFromRay(const QVector3D &origin, const QVector3D &direction, QPointerEvent *event) const;
110 bool singlePointPick(QSinglePointEvent *event, const QVector3D &origin, const QVector3D &direction);
111
112 Q_REVISION(6, 8) Q_INVOKABLE void setTouchpoint(QQuickItem *target, const QPointF &position, int pointId, bool active);
113
114 QQuick3DLightmapBaker *maybeLightmapBaker();
115 QQuick3DLightmapBaker *lightmapBaker();
116
117 Q_INVOKABLE void bakeLightmap();
118
119 QQmlListProperty<QQuick3DObject> extensions();
120
121 Q_REVISION(6, 7) int explicitTextureWidth() const;
122 Q_REVISION(6, 7) int explicitTextureHeight() const;
123 Q_REVISION(6, 7) QSize effectiveTextureSize() const;
124
125 // Private helpers
126 [[nodiscard]] bool extensionListDirty() const { return m_extensionListDirty; }
127 [[nodiscard]] const QList<QQuick3DObject *> &extensionList() const { return m_extensions; }
128 void clearExtensionListDirty() { m_extensionListDirty = false; }
129
130 Q_REVISION(6, 7) Q_INVOKABLE void rebuildExtensionList();
131
132 enum class PrivateInstanceType : quint8 { XrViewInstance = 1 };
133 explicit QQuick3DViewport(PrivateInstanceType type, QQuickItem *parent = nullptr);
134 [[nodiscard]] bool isXrViewInstance() const { return m_isXrViewInstance; }
135
136 static void updateCameraForLayer(const QQuick3DViewport &view3D, QSSGRenderLayer &layerNode);
137
138protected:
139 void geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry) override;
140 QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override;
141 void itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &value) override;
142
143 bool event(QEvent *) override;
144 void componentComplete() override;
145
146public Q_SLOTS:
147 void setCamera(QQuick3DCamera *camera);
148 void setEnvironment(QQuick3DSceneEnvironment * environment);
149 void setImportScene(QQuick3DNode *inScene);
150 void setRenderMode(QQuick3DViewport::RenderMode renderMode);
151#if QT_CONFIG(quick_shadereffect)
152 Q_REVISION(6, 4) void setRenderFormat(QQuickShaderEffectSource::Format format);
153#endif
154 Q_REVISION(6, 7) void setExplicitTextureWidth(int width);
155 Q_REVISION(6, 7) void setExplicitTextureHeight(int height);
156 void cleanupDirectRenderer();
157
158 // Setting this true enables picking for all the models, regardless of
159 // the models pickable property.
160 void setGlobalPickingEnabled(bool isEnabled);
161
162private Q_SLOTS:
163 void invalidateSceneGraph();
164 void updateInputProcessing();
165 void onReleaseCachedResources();
166
167Q_SIGNALS:
168 void cameraChanged();
169 void environmentChanged();
170 void sceneChanged();
171 void importSceneChanged();
172 void renderModeChanged();
173 Q_REVISION(6, 4) void renderFormatChanged();
174 Q_REVISION(6, 7) void explicitTextureWidthChanged();
175 Q_REVISION(6, 7) void explicitTextureHeightChanged();
176 Q_REVISION(6, 7) void effectiveTextureSizeChanged();
177
178private:
179 void setMultiViewCameras(QQuick3DCamera **firstCamera, int count);
180 template <size_t N>
181 void setMultiViewCameras(QQuick3DCamera *(&cameras)[N])
182 {
183 static_assert(N > 1, "Use setCamera for single view");
184 setMultiViewCameras(cameras, N);
185 }
186
187 friend class QQuick3DExtensionListHelper;
188 friend class QQuick3DXrManager;
189 friend class QQuick3DXrManagerPrivate;
190 friend class QQuick3DRenderLayerHelpers;
191
192 Q_DISABLE_COPY(QQuick3DViewport)
193 struct SubsceneInfo {
194 QQuick3DObject* obj = nullptr;
195 QVarLengthArray<QPointF, 16> eventPointScenePositions;
196 };
197 QQuick3DSceneRenderer *getRenderer() const;
198 void updateDynamicTextures();
199 QSGNode *setupOffscreenRenderer(QSGNode *node);
200 QSGNode *setupInlineRenderer(QSGNode *node);
201 void setupDirectRenderer(RenderMode mode);
202 bool checkIsVisible() const;
203 bool internalPick(QPointerEvent *event, const QVector3D &origin = QVector3D(), const QVector3D &direction = QVector3D()) const;
204 QPair<QQuickItem *, QPointF> getItemAndPosition(const QSSGRenderPickResult &pickResult);
205 QVarLengthArray<QSSGRenderPickResult, 20> getPickResults(QQuick3DSceneRenderer *renderer, const QVector3D &origin, const QVector3D &direction) const;
206 QVarLengthArray<QSSGRenderPickResult, 20> getPickResults(QQuick3DSceneRenderer *renderer, const QEventPoint &eventPoint) const;
207 bool forwardEventToSubscenes(QPointerEvent *event,
208 bool useRayPicking,
209 QQuick3DSceneRenderer *renderer,
210 const QFlatMap<QQuickItem *, SubsceneInfo> &visitedSubscenes) const;
211
212 void processPickedObject(const QSSGRenderPickResult &pickResult,
213 int pointIndex,
214 QPointerEvent *event,
215 QFlatMap<QQuickItem *, SubsceneInfo> &vistedSubscenes) const;
216 QQuickItem *getSubSceneRootItem(QQuick3DMaterial *material) const;
217 QQuick3DPickResult getNearestPickResult(const QVarLengthArray<QSSGRenderPickResult, 20> &pickResults) const;
218 QQuick3DPickResult processPickResult(const QSSGRenderPickResult &pickResult) const;
219 QQuick3DObject *findFrontendNode(const QSSGRenderGraphObject *backendObject) const;
220 QQuick3DSceneManager *findChildSceneManager(QQuick3DObject *inObject, QQuick3DSceneManager *manager = nullptr);
221 QQuick3DCamera *m_camera = nullptr;
222 QVarLengthArray<QQuick3DCamera *, 2> m_multiViewCameras;
223 QQuick3DSceneEnvironment *m_environment = nullptr;
224 mutable QPointer<QQuick3DSceneEnvironment> m_builtInEnvironment;
225 QQuick3DSceneRootNode *m_sceneRoot = nullptr;
226 QQuick3DNode *m_importScene = nullptr;
227 mutable SGFramebufferObjectNode *m_node = nullptr;
228 mutable QQuick3DSGRenderNode *m_renderNode = nullptr;
229 mutable QQuick3DSGDirectRenderer *m_directRenderer = nullptr;
230 bool m_renderModeDirty = false;
231 RenderMode m_renderMode = Offscreen;
232#if QT_CONFIG(quick_shadereffect)
233 QQuickShaderEffectSource::Format m_renderFormat = QQuickShaderEffectSource::RGBA8;
234#endif
235 int m_explicitTextureWidth = 0;
236 int m_explicitTextureHeight = 0;
237 QSize m_effectiveTextureSize;
238 float m_widthMultiplier = 1.0f;
239 float m_heightMultiplier = 1.0f;
240 QQuick3DRenderStats *m_renderStats = nullptr;
241 bool m_enableInputProcessing = false;
242 QQuick3DLightmapBaker *m_lightmapBaker = nullptr;
243 QList<QQuick3DObject *> m_extensions;
244 bool m_extensionListDirty = false;
245 bool m_isXrViewInstance = false;
246
247 struct TouchState {
248 QQuickItem *target = nullptr;
249 QPointF position;
250 bool isPressed = false;
251 };
252 QPointingDevice *m_syntheticTouchDevice = nullptr;
253 QVarLengthArray<TouchState, 2> m_touchState{2};
254
255 QPointer<QQuickItem> m_prevMouseItem = nullptr;
256 QPointF m_prevMousePos;
257
258 Q_QUICK3D_PROFILE_ID
259};
260
261QT_END_NAMESPACE
262
263#endif // QSSGVIEW3D_H
264

source code of qtquick3d/src/quick3d/qquick3dviewport_p.h