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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOpenGLRayCastImageDisplayHelper.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 vtkOpenGLRayCastImageDisplayHelper
* @brief OpenGL subclass that draws the image to the screen
*
* This is the concrete implementation of a ray cast image display helper -
* a helper class responsible for drawing the image to the screen.
*
* @sa
* vtkRayCastImageDisplayHelper
*/
#ifndef vtkOpenGLRayCastImageDisplayHelper_h
#define vtkOpenGLRayCastImageDisplayHelper_h
#include "vtkRenderingVolumeOpenGL2Module.h" // For export macro
#include "vtkRayCastImageDisplayHelper.h"
class vtkFixedPointRayCastImage;
class vtkOpenGLHelper;
class vtkRenderer;
class vtkTextureObject;
class vtkVolume;
class vtkWindow;
class VTKRENDERINGVOLUMEOPENGL2_EXPORT vtkOpenGLRayCastImageDisplayHelper
: public vtkRayCastImageDisplayHelper
{
public:
static vtkOpenGLRayCastImageDisplayHelper *New();
vtkTypeMacro(vtkOpenGLRayCastImageDisplayHelper,vtkRayCastImageDisplayHelper);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
void RenderTexture( vtkVolume *vol, vtkRenderer *ren,
int imageMemorySize[2],
int imageViewportSize[2],
int imageInUseSize[2],
int imageOrigin[2],
float requestedDepth,
unsigned char *image );
void RenderTexture( vtkVolume *vol, vtkRenderer *ren,
int imageMemorySize[2],
int imageViewportSize[2],
int imageInUseSize[2],
int imageOrigin[2],
float requestedDepth,
unsigned short *image );
void RenderTexture( vtkVolume *vol, vtkRenderer *ren,
vtkFixedPointRayCastImage *image,
float requestedDepth );
virtual void ReleaseGraphicsResources(vtkWindow *win);
protected:
vtkOpenGLRayCastImageDisplayHelper();
~vtkOpenGLRayCastImageDisplayHelper();
void RenderTextureInternal( vtkVolume *vol, vtkRenderer *ren,
int imageMemorySize[2],
int imageViewportSize[2],
int imageInUseSize[2],
int imageOrigin[2],
float requestedDepth,
int imageScalarType,
void *image );
// used for copying to framebuffer
vtkTextureObject *TextureObject;
vtkOpenGLHelper *ShaderProgram;
private:
vtkOpenGLRayCastImageDisplayHelper(const vtkOpenGLRayCastImageDisplayHelper&) VTK_DELETE_FUNCTION;
void operator=(const vtkOpenGLRayCastImageDisplayHelper&) VTK_DELETE_FUNCTION;
};
#endif
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