blob: 78dfd3e8947a1ac43178b1e921745d15e9ba6cd8 (
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
|
#ifndef VORONOISPLAT_H
#define VORONOISPLAT_H
#include <QSGDynamicTexture>
#include <QOpenGLFunctions>
#include <QOpenGLShaderProgram>
#include <QOpenGLVertexArrayObject>
#include <armadillo>
#include "colorscale.h"
class VoronoiSplatTexture
: public QSGDynamicTexture
{
public:
// 'size' must be square (and power of 2)
VoronoiSplatTexture(const QSize &size);
virtual ~VoronoiSplatTexture();
void bind();
// When true is returned, should probably call resetOpenGLState() on window
bool updateTexture();
bool hasAlphaChannel() const { return true; }
bool hasMipmaps() const { return false; }
int textureId() const { return m_tex; }
QSize textureSize() const { return m_size; }
// '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);
private:
void setupShaders();
void setupVAOs();
void setupTextures();
void updateSites();
void updateValues();
void updateColormap();
void computeDT();
QOpenGLFunctions gl;
QOpenGLShaderProgram *m_program1, *m_program2;
GLuint m_FBO;
GLuint m_VBOs[3];
GLuint m_textures[2], m_colormapTex, m_tex;
QOpenGLVertexArrayObject m_sitesVAO, m_2ndPassVAO;
std::vector<float> m_sites, m_values, m_cmap;
QSize m_size;
bool m_sitesUpdated, m_valuesUpdated, m_colormapUpdated;
};
#endif // VORONOISPLAT_H
|
