Création d'un compte pour un collaborateur extérieur au laboratoire depuis l'intranet ICube : https://intranet.icube.unistra.fr/fr/labs/member/profile

mapRender.cpp 4.14 KB
Newer Older
Sylvain Thery's avatar
Sylvain Thery committed
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
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
* Copyright (C) 2009, IGG Team, LSIIT, University of Strasbourg                *
*                                                                              *
* This library is free software; you can redistribute it and/or modify it      *
* under the terms of the GNU Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 of the License, or (at your     *
* option) any later version.                                                   *
*                                                                              *
* This library is distributed in the hope that it will be useful, but WITHOUT  *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License  *
* for more details.                                                            *
*                                                                              *
* You should have received a copy of the GNU Lesser General Public License     *
* along with this library; if not, write to the Free Software Foundation,      *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
*                                                                              *
* Web site: https://iggservis.u-strasbg.fr/CGoGN/                              *
* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/

#include "Algo/Render/GL2/mapRender.h"
#include "Utils/GLSLShader.h"

namespace CGoGN
{

namespace Algo
{

namespace Render
{

namespace GL2
{

MapRender::MapRender():
	m_nbIndicesTri(0),
	m_nbIndicesLines(0),
	m_nbIndicesPoints(0),
	m_nbFlatElts(0)
{
	glGenBuffersARB(4, m_VBOBuffers) ;
}


MapRender::~MapRender()
{
	glDeleteBuffersARB(4, m_VBOBuffers);
	delete[] m_VBOBuffers ;

}



void MapRender::initPrimitives(int prim, std::vector<GLuint>& tableIndices)
{
	// indice du VBO a utiliser
	int vbo_ind = 0;
	switch(prim)
	{
		case TRIANGLES:
			m_nbIndicesTri = tableIndices.size();
			vbo_ind = m_VBOBuffers[TRIANGLE_INDICES];
			break;
		case LINES:
			m_nbIndicesLines = tableIndices.size();
			vbo_ind = m_VBOBuffers[LINE_INDICES];
			break;
		case POINTS:
			m_nbIndicesPoints = tableIndices.size();
			vbo_ind = m_VBOBuffers[POINT_INDICES];
			break;
		default:
			std::cerr << "problem initializing VBO indices" << std::endl;
			break;
	}
	int size = tableIndices.size();

	// setup du buffer d'indices
	glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER, vbo_ind);
	glBufferDataARB(GL_ELEMENT_ARRAY_BUFFER, size*sizeof(GLuint), &(tableIndices[0]), GL_STREAM_DRAW);
}


void MapRender::draw(Utils::GLSLShader* sh, int prim)
{
	const std::vector<Utils::GLSLShader::VAStr>& vastr = sh->getVA_VBO_Bindings();

	for (std::vector<Utils::GLSLShader::VAStr>::const_iterator it= vastr.begin(); it != vastr.end(); ++it)
	{
		glBindBuffer(GL_ARRAY_BUFFER, it->vbo_ptr->id());
		glEnableVertexAttribArray(it->va_id);
		glVertexAttribPointer(it->va_id ,it->vbo_ptr->dataSize(), GL_FLOAT, false, 0, 0);
	}

	switch(prim)
	{
		case TRIANGLES:
			glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_VBOBuffers[TRIANGLE_INDICES]);
			glDrawElements(GL_TRIANGLES, m_nbIndicesTri, GL_UNSIGNED_INT, 0);
			break;
		case LINES:
			glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_VBOBuffers[LINE_INDICES]);
			glDrawElements(GL_LINES, m_nbIndicesLines, GL_UNSIGNED_INT, 0);
			break;
		case POINTS:
			glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_VBOBuffers[POINT_INDICES]);
			glDrawElements(GL_POINTS, m_nbIndicesPoints, GL_UNSIGNED_INT, 0) ;
			break;
		default:
			break;
	}

	for (std::vector<Utils::GLSLShader::VAStr>::const_iterator it= vastr.begin(); it != vastr.end(); ++it)
	{
		glDisableVertexAttribArray(it->va_id);
	}
}






} // namespace GL2

} // namespace Render

} // namespace Algo

} // namespace CGoGN