blob: 2e43f2a960fb01e68e48299fcd7ed570d595933f (
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
|
/*
model/vertexarray.h
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#ifndef __INCLUDED_MODEL_VERTEXARRAY_H__
#define __INCLUDED_MODEL_VERTEXARRAY_H__
#include "math/vector3f.h"
namespace model
{
// number of segments in a sphere circle, must be uneven
const int SPHERESEGMENTS = 65;
/// global vertex array
/** a VertexArray acts like a stack of model vertices, it has no knowledge of what it is holding
*/
class VertexArray
{
public:
/// create a new VertexArray with size in Mb
VertexArray(size_t size);
~VertexArray();
/// clear array, set memory to 0
void clear();
/// print vertex array usage to console
void info();
size_t add_vertex(math::Vector3f const &v, math::Vector3f const &n, float tex_x = 0.0f, float tex_y = 0.0f);
/// true when the array is full
inline bool overflow() const {
return vertex_overflow;
}
/// pointer to model vertices, sequential in GL_T2F_N3F_V3F format
inline const float *ptr() const {
return vertex_data;
}
/// size of the vertex array in number of floats (for a single array)
inline size_t size() const {
return vertex_size;
}
/// number of allocated floats
inline size_t index() const {
return vertex_index;
}
static inline VertexArray *instance() {
return vertex_instance;
}
private:
/// model vertices, sequential in GL_T2F_N3F_V3F format
float *vertex_data;
size_t vertex_index;
size_t vertex_size;
void add_sphere();
static VertexArray *vertex_instance;
bool vertex_overflow;
};
}
#endif // __INCLUDED_MODEL_VERTEXARRAY_H__
|