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C

/*=========================================================================
Program: Visualization Toolkit
Module: vtkOpenGLImageMapper.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 vtkOpenGLImageMapper
* @brief 2D image display support for OpenGL
*
* vtkOpenGLImageMapper is a concrete subclass of vtkImageMapper that
* renders images under OpenGL
*
* @warning
* vtkOpenGLImageMapper does not support vtkBitArray, you have to convert the array first
* to vtkUnsignedCharArray (for example)
*
* @sa
* vtkImageMapper
*/
#ifndef vtkOpenGLImageMapper_h
#define vtkOpenGLImageMapper_h
#include "vtkImageMapper.h"
#include "vtkRenderingOpenGL2Module.h" // For export macro
class vtkActor2D;
class vtkTexturedActor2D;
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLImageMapper : public vtkImageMapper
{
public:
static vtkOpenGLImageMapper* New();
vtkTypeMacro(vtkOpenGLImageMapper, vtkImageMapper);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Handle the render method.
*/
void RenderOverlay(vtkViewport* viewport, vtkActor2D* actor) override
{
this->RenderStart(viewport, actor);
}
/**
* Called by the Render function in vtkImageMapper. Actually draws
* the image to the screen.
*/
void RenderData(vtkViewport* viewport, vtkImageData* data, vtkActor2D* actor) override;
/**
* draw the data once it has been converted to uchar, windowed leveled
* used internally by the templated functions
*/
void DrawPixels(vtkViewport* vp, int width, int height, int numComponents, void* data);
/**
* Release any graphics resources that are being consumed by this
* mapper, the image texture in particular.
*/
void ReleaseGraphicsResources(vtkWindow*) override;
protected:
vtkOpenGLImageMapper();
~vtkOpenGLImageMapper() override;
vtkTexturedActor2D* Actor;
private:
vtkOpenGLImageMapper(const vtkOpenGLImageMapper&) = delete;
void operator=(const vtkOpenGLImageMapper&) = delete;
};
#endif