blob: 59132185e296d80b3c28735c0cefc82fb6765310 (
plain)
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
|
#ifndef VORONOISPLAT_H
#define VORONOISPLAT_H
#include <QQuickFramebufferObject>
#include <QOpenGLFunctions>
#include <QOpenGLBuffer>
#include <QOpenGLShaderProgram>
#include <QOpenGLVertexArrayObject>
#include <armadillo>
#include "colorscale.h"
class VoronoiSplat; // defined after this class
class VoronoiSplatRenderer
: public QQuickFramebufferObject::Renderer
{
public:
// 'size' must be square (and power of 2)
VoronoiSplatRenderer(const QSize &size);
~VoronoiSplatRenderer();
void synchronize(QQuickFramebufferObject *item);
// 'points' should be a 2D points matrix (each point in a row)
void setSites(const arma::mat &points);
// Set the value to be colormapped in each site
void setValues(const arma::vec &values);
// Set colormap data based on the given color scale;
void setColorMap(const ColorScale *scale);
QOpenGLFramebufferObject *createFramebufferObject(const QSize &size);
void render();
private:
void setupShaders();
void setupVAOs();
void setupTextures();
void copyPoints(const arma::mat &points);
void computeDT();
VoronoiSplat *m_item;
QOpenGLFunctions gl;
QOpenGLShaderProgram *m_program1, *m_program2;
GLuint m_VBOs[3];
GLuint m_textures[2], m_colorMapTex;
QOpenGLVertexArrayObject m_sitesVAO, m_2ndPassVAO;
std::vector<float> m_sites, m_values;
QSize m_size;
};
class VoronoiSplat
: public QQuickFramebufferObject
{
Q_OBJECT
public:
VoronoiSplat(QQuickItem *parent = 0);
Renderer *createRenderer() const;
const arma::mat &points() const { return m_points; }
const arma::vec &values() const { return m_values; }
const ColorScale *colorScale() const { return m_colorScale; }
bool colorScaleUpdated() const { return m_colorScaleUpdated; }
bool pointsUpdated() const { return m_pointsUpdated; }
bool valuesUpdated() const { return m_valuesUpdated; }
public slots:
void setColorScale(const ColorScale *scale)
{
m_colorScale = scale;
m_colorScaleUpdated = true;
update();
}
void setPoints(const arma::mat &points)
{
m_points = points;
m_pointsUpdated = true;
update();
}
void setValues(const arma::vec &values)
{
m_values = values;
m_valuesUpdated = true;
update();
}
void setUpdated(bool updated)
{
m_colorScaleUpdated = updated;
m_pointsUpdated = updated;
m_valuesUpdated = updated;
}
private:
bool m_colorScaleUpdated, m_pointsUpdated, m_valuesUpdated;
const ColorScale *m_colorScale;
arma::mat m_points;
arma::vec m_values;
};
#endif // VORONOISPLAT_H
|
