vtkOpenGLVertexBufferObjectGroup.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkOpenGLTexture.h
 
  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.
 
=========================================================================*/
#ifndef vtkOpenGLVertexBufferObjectGroup_h
#define vtkOpenGLVertexBufferObjectGroup_h
 
#include "vtkObject.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include <map>                         // for methods
#include <string>                      // for ivars
#include <vector>                      // for ivars
 
class vtkDataArray;
class vtkOpenGLVertexArrayObject;
class vtkOpenGLVertexBufferObject;
class vtkOpenGLVertexBufferObjectCache;
class vtkShaderProgram;
class vtkViewport;
class vtkWindow;
 
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLVertexBufferObjectGroup : public vtkObject
{
public:
  static vtkOpenGLVertexBufferObjectGroup* New();
  vtkTypeMacro(vtkOpenGLVertexBufferObjectGroup, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  int GetNumberOfComponents(const char* attribute);
 
  int GetNumberOfTuples(const char* attribute);
 
  void ReleaseGraphicsResources(vtkWindow*);
 
  vtkOpenGLVertexBufferObject* GetVBO(const char* attribute);
 
  void AddAllAttributesToVAO(vtkShaderProgram* program, vtkOpenGLVertexArrayObject* vao);
 
  void RemoveAttribute(const char* attribute);
 
  void CacheDataArray(
    const char* attribute, vtkDataArray* da, vtkOpenGLVertexBufferObjectCache* cache, int destType);
  void CacheDataArray(const char* attribute, vtkDataArray* da, vtkViewport* vp, int destType);
 
  bool ArrayExists(
    const char* attribute, vtkDataArray* da, vtkIdType& offset, vtkIdType& totalOffset);
 
  void AppendDataArray(const char* attribute, vtkDataArray* da, int destType);
 
  void BuildAllVBOs(vtkOpenGLVertexBufferObjectCache*);
  void BuildAllVBOs(vtkViewport*);
 
  void ClearAllVBOs();
 
  void ClearAllDataArrays();
 
  vtkMTimeType GetMTime() override;
 
protected:
  vtkOpenGLVertexBufferObjectGroup();
  ~vtkOpenGLVertexBufferObjectGroup() override;
 
  std::map<std::string, vtkOpenGLVertexBufferObject*> UsedVBOs;
  std::map<std::string, std::vector<vtkDataArray*>> UsedDataArrays;
  std::map<std::string, std::map<vtkDataArray*, vtkIdType>> UsedDataArrayMaps;
  std::map<std::string, vtkIdType> UsedDataArraySizes;
 
private:
  vtkOpenGLVertexBufferObjectGroup(const vtkOpenGLVertexBufferObjectGroup&) = delete;
  void operator=(const vtkOpenGLVertexBufferObjectGroup&) = delete;
};
 
#endif