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74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkOpenGLTexture.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkOpenGLVertexBufferObjectCache
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* @brief manage vertex buffer objects shared within a context
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*
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* This class allows mappers to share VBOs. Specifically it
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* is used by the V..B..O..Group to see if a VBO already exists
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* for a given vtkDataArray.
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*
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*
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*
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*/
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#ifndef vtkOpenGLVertexBufferObjectCache_h
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#define vtkOpenGLVertexBufferObjectCache_h
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#include "vtkObject.h"
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#include "vtkRenderingOpenGL2Module.h" // For export macro
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#include <map> // for methods
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class vtkOpenGLVertexBufferObject;
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class vtkDataArray;
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class vtkTimeStamp;
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class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLVertexBufferObjectCache : public vtkObject
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{
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public:
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static vtkOpenGLVertexBufferObjectCache* New();
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vtkTypeMacro(vtkOpenGLVertexBufferObjectCache, vtkObject);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Returns the vertex buffer object which holds the
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* data array's data. If such a VBO does not exist
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* a new empty VBO will be created you need to append to.
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* The return value has been registered, you are responsible
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* for deleting it. The data array pointers are also registered.
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*/
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vtkOpenGLVertexBufferObject* GetVBO(vtkDataArray* array, int destType);
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/**
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* Removes all references to a given vertex buffer
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* object.
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*/
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void RemoveVBO(vtkOpenGLVertexBufferObject* vbo);
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typedef std::map<vtkDataArray*, vtkOpenGLVertexBufferObject*> VBOMap;
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protected:
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vtkOpenGLVertexBufferObjectCache();
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~vtkOpenGLVertexBufferObjectCache() override;
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VBOMap MappedVBOs;
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private:
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vtkOpenGLVertexBufferObjectCache(const vtkOpenGLVertexBufferObjectCache&) = delete;
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void operator=(const vtkOpenGLVertexBufferObjectCache&) = delete;
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};
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#endif
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