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
|
/*=========================================================================
Program: Visualization Toolkit
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include <emscripten/emscripten.h>
#include <iostream>
#include "vtkActor.h"
#include "vtkConeSource.h"
#include "vtkInteractorStyleTrackballCamera.h"
#include "vtkNew.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderer.h"
#include "vtkSDL2OpenGLRenderWindow.h"
#include "vtkSDL2RenderWindowInteractor.h"
//------------------------------------------------------------------------------
// Global objects
//------------------------------------------------------------------------------
vtkRenderer* renderer = nullptr;
vtkSDL2OpenGLRenderWindow* renderWindow = nullptr;
vtkSDL2RenderWindowInteractor* renderWindowInteractor = nullptr;
vtkInteractorStyleTrackballCamera* style = nullptr;
vtkConeSource* coneSource = nullptr;
vtkPolyDataMapper* mapper = nullptr;
vtkActor* actor = nullptr;
//------------------------------------------------------------------------------
void createPipeline()
{
// Create a renderer, render window, and interactor
renderer = vtkRenderer::New();
renderWindow = vtkSDL2OpenGLRenderWindow::New();
renderWindowInteractor = vtkSDL2RenderWindowInteractor::New();
style = vtkInteractorStyleTrackballCamera::New();
renderWindow->SetMultiSamples(0);
renderWindow->AddRenderer(renderer);
renderWindowInteractor->SetRenderWindow(renderWindow);
renderWindowInteractor->SetInteractorStyle(style);
style->SetDefaultRenderer(renderer);
// Create pipeline
coneSource = vtkConeSource::New();
mapper = vtkPolyDataMapper::New();
actor = vtkActor::New();
mapper->SetInputConnection(coneSource->GetOutputPort());
actor->SetMapper(mapper);
renderer->AddActor(actor);
}
//------------------------------------------------------------------------------
void deletePipeline()
{
renderer->Delete();
renderer = nullptr;
renderWindow->Delete();
renderWindow = nullptr;
renderWindowInteractor->Delete();
renderWindowInteractor = nullptr;
style->Delete();
style = nullptr;
coneSource->Delete();
coneSource = nullptr;
mapper->Delete();
mapper = nullptr;
actor->Delete();
actor = nullptr;
}
//------------------------------------------------------------------------------
// Public API
//------------------------------------------------------------------------------
extern "C"
{
void stop()
{
std::cout << "c++::stop - begin" << std::endl;
// TerminateApp, ExitCallback ?
renderWindowInteractor->TerminateApp();
deletePipeline();
std::cout << "c++::stop - end" << std::endl;
}
int getConeResolution() { return coneSource->GetResolution(); }
void setConeResolution(int resolution)
{
coneSource->SetResolution(resolution);
renderWindow->Render();
}
}
//------------------------------------------------------------------------------
// Main
//------------------------------------------------------------------------------
int main(int argc, char* argv[])
{
std::cout << "Start main" << std::endl;
createPipeline();
// Start rendering app
renderer->SetBackground(0.2, 0.3, 0.4);
renderWindow->SetSize(600, 600);
renderWindow->Render();
// Start event loop
// Nothing is going to execute pass that point...
renderWindowInteractor->Start();
return 0;
}
|
