You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
3 weeks ago
|
/*=========================================================================
|
||
|
|
|
||
|
|
Program: Visualization Toolkit
|
||
|
|
Module: vtkOpenGLContextBufferId.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.
|
||
|
|
|
||
|
|
=========================================================================*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @class vtkOpenGLContextBufferId
|
||
|
|
* @brief 2D array of ids stored in VRAM.
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* An 2D array where each element is the id of an entity drawn at the given
|
||
|
|
* pixel.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef vtkOpenGLContextBufferId_h
|
||
|
|
#define vtkOpenGLContextBufferId_h
|
||
|
|
|
||
|
|
#include "vtkRenderingContextOpenGLModule.h" // For export macro
|
||
|
|
#include "vtkAbstractContextBufferId.h"
|
||
|
|
|
||
|
|
class vtkTextureObject;
|
||
|
|
class vtkOpenGLRenderWindow;
|
||
|
|
|
||
|
|
class VTKRENDERINGCONTEXTOPENGL_EXPORT vtkOpenGLContextBufferId : public vtkAbstractContextBufferId
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
vtkTypeMacro(vtkOpenGLContextBufferId, vtkAbstractContextBufferId);
|
||
|
|
virtual void PrintSelf(ostream &os, vtkIndent indent);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Creates a 2D Painter object.
|
||
|
|
*/
|
||
|
|
static vtkOpenGLContextBufferId *New();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Release any graphics resources that are being consumed by this object.
|
||
|
|
*/
|
||
|
|
virtual void ReleaseGraphicsResources();
|
||
|
|
|
||
|
|
//@{
|
||
|
|
/**
|
||
|
|
* Set/Get the OpenGL context owning the texture object resource.
|
||
|
|
*/
|
||
|
|
virtual void SetContext(vtkRenderWindow *context);
|
||
|
|
virtual vtkRenderWindow *GetContext();
|
||
|
|
//@}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns if the context supports the required extensions.
|
||
|
|
* \pre context_is_set: this->GetContext()!=0
|
||
|
|
*/
|
||
|
|
virtual bool IsSupported();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Allocate the memory for at least Width*Height elements.
|
||
|
|
* \pre positive_width: GetWidth()>0
|
||
|
|
* \pre positive_height: GetHeight()>0
|
||
|
|
* \pre context_is_set: this->GetContext()!=0
|
||
|
|
*/
|
||
|
|
virtual void Allocate();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tell if the buffer has been allocated.
|
||
|
|
*/
|
||
|
|
virtual bool IsAllocated() const;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Copy the contents of the current read buffer to the internal texture
|
||
|
|
* starting at lower left corner of the framebuffer (srcXmin,srcYmin).
|
||
|
|
* \pre is_allocated: this->IsAllocated()
|
||
|
|
*/
|
||
|
|
virtual void SetValues(int srcXmin,
|
||
|
|
int srcYmin);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return item under abscissa x and ordinate y.
|
||
|
|
* Abscissa go from left to right.
|
||
|
|
* Ordinate go from bottom to top.
|
||
|
|
* The return value is -1 if there is no item.
|
||
|
|
* \pre is_allocated: IsAllocated()
|
||
|
|
* \post valid_result: result>=-1
|
||
|
|
*/
|
||
|
|
virtual vtkIdType GetPickedItem(int x, int y);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
vtkOpenGLContextBufferId();
|
||
|
|
virtual ~vtkOpenGLContextBufferId();
|
||
|
|
|
||
|
|
vtkOpenGLRenderWindow *Context;
|
||
|
|
vtkTextureObject *Texture;
|
||
|
|
|
||
|
|
private:
|
||
|
|
vtkOpenGLContextBufferId(const vtkOpenGLContextBufferId &) VTK_DELETE_FUNCTION;
|
||
|
|
void operator=(const vtkOpenGLContextBufferId &) VTK_DELETE_FUNCTION;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // #ifndef vtkOpenGLContextBufferId_h
|