1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtDataVis3D module.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the QtDataVis3D 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 Q3DSCATTERRENDERER_P_H
#define Q3DSCATTERRENDERER_P_H
#include <QtCore/QSize>
#include <QtCore/QObject>
#include <QtGui/QOpenGLFunctions>
#include <QtGui/QFont>
#include <QTime>
#include <QWindow>
#include <QMutex>
#include "datavis3dglobal_p.h"
#include "scatter3dcontroller_p.h"
#include "abstract3drenderer_p.h"
#include "qscatterdataproxy.h"
#include "scatterrenderitem_p.h"
//#define DISPLAY_RENDER_SPEED
class QPoint;
class QSizeF;
class QOpenGLShaderProgram;
QT_DATAVIS3D_BEGIN_NAMESPACE
class ShaderHelper;
class ObjectHelper;
class TextureHelper;
class LabelItem;
class CameraHelper;
class QAbstractAxisPrivate;
class QT_DATAVIS3D_EXPORT Scatter3DRenderer : public Abstract3DRenderer
{
Q_OBJECT
private:
// TODO: Filter to the set of attributes to be moved to the model object.
// * All GL rendering only related attribs should be moved out of this public set.
// * All attribs that are modifiable from QML need to e in this set.
Scatter3DController *m_controller;
// Mutex for sharing resources between render and main threads.
QMutex m_mutex;
// Cached state based on emitted signals from the controller
QString m_cachedObjFile;
SelectionMode m_cachedSelectionMode;
int m_cachedZoomLevel;
bool m_cachedIsGridEnabled;
bool m_cachedIsBackgroundEnabled;
// Internal state
ScatterRenderItem *m_selectedItem; // points to renderitem array
ScatterRenderItem *m_previouslySelectedItem; // points to renderitem array
GLint m_tickCount;
GLfloat m_tickStep;
bool m_xFlipped;
bool m_zFlipped;
QRect m_mainViewPort;
bool m_updateLabels;
ShaderHelper *m_dotShader;
ShaderHelper *m_depthShader;
ShaderHelper *m_selectionShader;
ShaderHelper *m_backgroundShader;
ShaderHelper *m_labelShader;
ObjectHelper *m_dotObj;
ObjectHelper *m_backgroundObj;
ObjectHelper *m_gridLineObj;
ObjectHelper *m_labelObj;
TextureHelper *m_textureHelper;
GLuint m_bgrTexture;
GLuint m_depthTexture;
GLuint m_selectionTexture;
GLuint m_depthFrameBuffer;
GLuint m_selectionFrameBuffer;
GLuint m_selectionDepthBuffer;
GLfloat m_shadowQualityToShader;
GLfloat m_heightNormalizer;
GLfloat m_yAdjustment;
GLfloat m_scaleFactor;
QVector3D m_selection;
QSizeF m_areaSize;
QPoint m_selectionPointRequest;
bool m_isSelectionPointRequestActive;
bool m_hasHeightAdjustmentChanged;
QPair<GLfloat, GLfloat> m_limits;
ScatterRenderItem m_dummyRenderItem;
QScatterDataProxy *m_dataProxy; // Only valid during render
ScatterRenderItemArray m_renderItemArray;
bool m_valueUpdateNeeded;
#ifdef DISPLAY_RENDER_SPEED
bool m_isFirstFrame;
QTime m_lastFrameTime;
GLint m_numFrames;
#endif
public:
explicit Scatter3DRenderer(Scatter3DController *controller);
~Scatter3DRenderer();
void render(QScatterDataProxy *dataProxy, bool valuesDirty, CameraHelper *camera,
const GLuint defaultFboHandle = 0);
QRect mainViewPort();
public slots:
void updateSelectionMode(SelectionMode newMode);
//void updateLimits(QPair<GLfloat, GLfloat> newLimits);
void updateZoomLevel(int newZoomLevel);
void updateGridEnabled(bool enable);
void updateBackgroundEnabled(bool enable);
void updateTickCount(GLint tickCount, GLfloat step, GLfloat minimum = 0.0f);
void updateMeshFileName(const QString &objFileName);
// Requests that upon next render pass the column and row under the given point is inspected for selection.
// Only one request can be queued per render pass at this point. New request will override any pending requests.
// After inspection the selectionUpdated signal is emitted.
virtual void requestSelectionAtPoint(const QPoint &point);
signals:
void selectionUpdated(QVector3D selection);
private:
virtual void initializePreOpenGL();
virtual void initializeOpenGL();
virtual void initShaders(const QString &vertexShader, const QString &fragmentShader);
virtual void updateShadowQuality(ShadowQuality quality);
virtual void updateTextures();
void drawScene(CameraHelper *camera, const GLuint defaultFboHandle);
void handleResize();
void loadBarMesh();
void loadBackgroundMesh();
void loadGridLineMesh();
void loadLabelMesh();
void initSelectionShader();
void initBackgroundShaders(const QString &vertexShader, const QString &fragmentShader);
void initLabelShaders(const QString &vertexShader, const QString &fragmentShader);
void initSelectionBuffer();
#if !defined(QT_OPENGL_ES_2)
void initDepthShader();
void updateDepthBuffer();
#endif
void calculateSceneScalingFactors(const QRect &areaRect = QRect(0, 0, 1, 1));
void calculateTranslation(ScatterRenderItem &item);
void calculateHeightAdjustment(const QPair<GLfloat, GLfloat> &limits);
Scatter3DController::SelectionType isSelected(GLint bar, const QVector3D &selection);
Q_DISABLE_COPY(Scatter3DRenderer)
friend class ScatterRenderItem;
};
QT_DATAVIS3D_END_NAMESPACE
#endif
|
