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