forked from Kitware/VTK
/
vtkOpenGLVertexBufferObjectCache.cxx
84 lines (70 loc) · 2.64 KB
/
vtkOpenGLVertexBufferObjectCache.cxx
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
/*=========================================================================
Program: Visualization Toolkit
Module: vtkOpenGLVertexBufferObjectCache.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkOpenGLVertexBufferObjectCache.h"
#include "vtkDataArray.h"
#include "vtkObjectFactory.h"
#include "vtkOpenGLVertexBufferObject.h"
//------------------------------------------------------------------------------
vtkStandardNewMacro(vtkOpenGLVertexBufferObjectCache);
//------------------------------------------------------------------------------
vtkOpenGLVertexBufferObjectCache::vtkOpenGLVertexBufferObjectCache() = default;
//------------------------------------------------------------------------------
vtkOpenGLVertexBufferObjectCache::~vtkOpenGLVertexBufferObjectCache() = default;
void vtkOpenGLVertexBufferObjectCache::RemoveVBO(vtkOpenGLVertexBufferObject* vbo)
{
vtkOpenGLVertexBufferObjectCache::VBOMap::iterator iter = this->MappedVBOs.begin();
while (iter != this->MappedVBOs.end())
{
if (iter->second == vbo)
{
iter->first->UnRegister(this);
this->MappedVBOs.erase(iter++);
}
else
{
++iter;
}
}
}
//------------------------------------------------------------------------------
vtkOpenGLVertexBufferObject* vtkOpenGLVertexBufferObjectCache::GetVBO(
vtkDataArray* array, int destType)
{
// Check array is valid
if (array == nullptr || array->GetNumberOfTuples() == 0)
{
vtkErrorMacro(<< "Cannot get VBO for empty array.");
return nullptr;
}
// Look for VBO in map
VBOMap::const_iterator iter = this->MappedVBOs.find(array);
if (iter != this->MappedVBOs.end())
{
vtkOpenGLVertexBufferObject* vbo = iter->second;
vbo->SetDataType(destType);
vbo->Register(this);
return vbo;
}
// If vbo not found, create new one
// Initialize new vbo
vtkOpenGLVertexBufferObject* vbo = vtkOpenGLVertexBufferObject::New();
vbo->SetCache(this);
vbo->SetDataType(destType);
array->Register(this);
// Add vbo to map
this->MappedVBOs[array] = vbo;
return vbo;
}
//------------------------------------------------------------------------------
void vtkOpenGLVertexBufferObjectCache::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}