| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the QtDataVisualization 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. |
| |
| #ifndef SURFACE3DRENDERER_P_H |
| #define SURFACE3DRENDERER_P_H |
| |
| #include "datavisualizationglobal_p.h" |
| #include "surface3dcontroller_p.h" |
| #include "abstract3drenderer_p.h" |
| #include "surfaceseriesrendercache_p.h" |
| |
| QT_BEGIN_NAMESPACE_DATAVISUALIZATION |
| |
| class ShaderHelper; |
| class Q3DScene; |
| |
| class QT_DATAVISUALIZATION_EXPORT Surface3DRenderer : public Abstract3DRenderer |
| { |
| Q_OBJECT |
| |
| private: |
| bool m_cachedIsSlicingActivated; |
| |
| // Internal attributes purely related to how the scene is drawn with GL. |
| ShaderHelper *m_depthShader; |
| ShaderHelper *m_backgroundShader; |
| ShaderHelper *m_surfaceFlatShader; |
| ShaderHelper *m_surfaceSmoothShader; |
| ShaderHelper *m_surfaceTexturedSmoothShader; |
| ShaderHelper *m_surfaceTexturedFlatShader; |
| ShaderHelper *m_surfaceGridShader; |
| ShaderHelper *m_surfaceSliceFlatShader; |
| ShaderHelper *m_surfaceSliceSmoothShader; |
| ShaderHelper *m_selectionShader; |
| float m_heightNormalizer; |
| float m_scaleX; |
| float m_scaleY; |
| float m_scaleZ; |
| GLuint m_depthFrameBuffer; |
| GLuint m_selectionFrameBuffer; |
| GLuint m_selectionDepthBuffer; |
| GLuint m_selectionResultTexture; |
| GLfloat m_shadowQualityToShader; |
| bool m_flatSupported; |
| bool m_selectionActive; |
| AbstractRenderItem m_dummyRenderItem; |
| GLint m_shadowQualityMultiplier; |
| QPoint m_selectedPoint; |
| QSurface3DSeries *m_selectedSeries; |
| QPoint m_clickedPosition; |
| bool m_selectionTexturesDirty; |
| GLuint m_noShadowTexture; |
| bool m_flipHorizontalGrid; |
| |
| public: |
| explicit Surface3DRenderer(Surface3DController *controller); |
| ~Surface3DRenderer(); |
| |
| void updateData(); |
| void updateSeries(const QList<QAbstract3DSeries *> &seriesList); |
| void updateSurfaceTextures(QVector<QSurface3DSeries *> seriesList); |
| SeriesRenderCache *createNewCache(QAbstract3DSeries *series); |
| void cleanCache(SeriesRenderCache *cache); |
| void updateSelectionMode(QAbstract3DGraph::SelectionFlags mode); |
| void updateRows(const QVector<Surface3DController::ChangeRow> &rows); |
| void updateItems(const QVector<Surface3DController::ChangeItem> &points); |
| void updateScene(Q3DScene *scene); |
| void updateSlicingActive(bool isSlicing); |
| void updateSelectedPoint(const QPoint &position, QSurface3DSeries *series); |
| void updateFlipHorizontalGrid(bool flip); |
| inline QPoint clickedPosition() const { return m_clickedPosition; } |
| void resetClickedStatus(); |
| QVector3D convertPositionToTranslation(const QVector3D &position, bool isAbsolute); |
| void updateAxisLabels(QAbstract3DAxis::AxisOrientation orientation, |
| const QStringList &labels); |
| void updateAxisTitleVisibility(QAbstract3DAxis::AxisOrientation orientation, |
| bool visible); |
| void updateMargin(float margin); |
| |
| void render(GLuint defaultFboHandle = 0); |
| |
| protected: |
| void contextCleanup(); |
| void initializeOpenGL(); |
| virtual void fixCameraTarget(QVector3D &target); |
| virtual void getVisibleItemBounds(QVector3D &minBounds, QVector3D &maxBounds); |
| |
| Q_SIGNALS: |
| void flatShadingSupportedChanged(bool supported); |
| |
| private: |
| void checkFlatSupport(SurfaceSeriesRenderCache *cache); |
| void updateObjects(SurfaceSeriesRenderCache *cache, bool dimensionChanged); |
| void updateSliceDataModel(const QPoint &point); |
| QPoint mapCoordsToSampleSpace(SurfaceSeriesRenderCache *cache, const QPointF &coords); |
| void findMatchingRow(float z, int &sample, int direction, QSurfaceDataArray &dataArray); |
| void findMatchingColumn(float x, int &sample, int direction, QSurfaceDataArray &dataArray); |
| void updateSliceObject(SurfaceSeriesRenderCache *cache, const QPoint &point); |
| void updateShadowQuality(QAbstract3DGraph::ShadowQuality quality); |
| void updateTextures(); |
| void initShaders(const QString &vertexShader, const QString &fragmentShader); |
| QRect calculateSampleRect(const QSurfaceDataArray &array); |
| void loadBackgroundMesh(); |
| |
| void drawSlicedScene(); |
| void drawScene(GLuint defaultFboHandle); |
| void drawLabels(bool drawSelection, const Q3DCamera *activeCamera, |
| const QMatrix4x4 &viewMatrix, const QMatrix4x4 &projectionMatrix); |
| |
| void calculateSceneScalingFactors(); |
| void initBackgroundShaders(const QString &vertexShader, const QString &fragmentShader); |
| void initSelectionShaders(); |
| void initSurfaceShaders(); |
| void initSelectionBuffer(); |
| void initDepthShader(); |
| void updateSelectionTextures(); |
| void createSelectionTexture(SurfaceSeriesRenderCache *cache, uint &lastSelectionId); |
| void idToRGBA(uint id, uchar *r, uchar *g, uchar *b, uchar *a); |
| void fillIdCorner(uchar *p, uchar r, uchar g, uchar b, uchar a); |
| void surfacePointSelected(const QPoint &point); |
| void updateSelectionPoint(SurfaceSeriesRenderCache *cache, const QPoint &point, bool label); |
| QPoint selectionIdToSurfacePoint(uint id); |
| void updateDepthBuffer(); |
| void emitSelectedPointChanged(QPoint position); |
| |
| Q_DISABLE_COPY(Surface3DRenderer) |
| |
| friend class SurfaceObject; |
| }; |
| |
| QT_END_NAMESPACE_DATAVISUALIZATION |
| |
| #endif |