blob: 7d527d1b825f61c8af1d994e99d61bb999b1d644 (
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
|
#ifndef VERTEXBUFFERLAYOUT_H
#define VERTEXBUFFERLAYOUT_H
#include <vector>
#include <GL/glew.h>
#include "Renderer.h"
struct VertexBufferElement
{
unsigned int type;
unsigned int count;
unsigned char normalized;
static unsigned int GetSizeOfType(unsigned int type)
{
switch (type)
{
case GL_FLOAT: return 4;
case GL_UNSIGNED_INT: return 4;
case GL_UNSIGNED_BYTE: return 1;
default: break;
}
#ifdef _MSC_VER
ASSERT(false);
#endif
return(0);
}
};
class VertexBufferLayout
{
public:
VertexBufferLayout()
: m_stride(0) {}
~VertexBufferLayout() {}
template<typename T>
void Push(unsigned int count)
{
#ifdef _MSC_VER
static_assert(false);
#endif
}
inline const std::vector<VertexBufferElement> GetElements() const& { return m_elements; }
inline unsigned int GetStride() const& { return m_stride; }
private:
std::vector<VertexBufferElement> m_elements;
unsigned int m_stride;
};
template<> inline
void VertexBufferLayout::Push<float>(unsigned int count)
{
m_elements.push_back({ GL_FLOAT, count, GL_FALSE });
m_stride += count * VertexBufferElement::GetSizeOfType(GL_FLOAT);
}
template<> inline
void VertexBufferLayout::Push<unsigned int>(unsigned int count)
{
m_elements.push_back({ GL_UNSIGNED_INT, count, GL_FALSE });
m_stride += count * VertexBufferElement::GetSizeOfType(GL_UNSIGNED_INT);
}
template<> inline
void VertexBufferLayout::Push<unsigned char>(unsigned int count)
{
m_elements.push_back({ GL_UNSIGNED_BYTE, count, GL_TRUE });
m_stride += count * VertexBufferElement::GetSizeOfType(GL_UNSIGNED_BYTE);
}
#endif // VERTEXBUFFERLAYOUT_H
|