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94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkRayCastImageDisplayHelper.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 vtkRayCastImageDisplayHelper
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* @brief helper class that draws the image to the screen
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*
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* This is a helper class for drawing images created from ray casting on the screen.
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* This is the abstract device-independent superclass.
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*
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* @sa
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* vtkUnstructuredGridVolumeRayCastMapper
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* vtkOpenGLRayCastImageDisplayHelper
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*/
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#ifndef vtkRayCastImageDisplayHelper_h
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#define vtkRayCastImageDisplayHelper_h
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#include "vtkObject.h"
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#include "vtkRenderingVolumeModule.h" // For export macro
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class vtkFixedPointRayCastImage;
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class vtkRenderer;
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class vtkVolume;
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class vtkWindow;
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class VTKRENDERINGVOLUME_EXPORT vtkRayCastImageDisplayHelper : public vtkObject
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{
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public:
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static vtkRayCastImageDisplayHelper* New();
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vtkTypeMacro(vtkRayCastImageDisplayHelper, vtkObject);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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virtual void RenderTexture(vtkVolume* vol, vtkRenderer* ren, int imageMemorySize[2],
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int imageViewportSize[2], int imageInUseSize[2], int imageOrigin[2], float requestedDepth,
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unsigned char* image) = 0;
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virtual void RenderTexture(vtkVolume* vol, vtkRenderer* ren, int imageMemorySize[2],
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int imageViewportSize[2], int imageInUseSize[2], int imageOrigin[2], float requestedDepth,
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unsigned short* image) = 0;
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virtual void RenderTexture(
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vtkVolume* vol, vtkRenderer* ren, vtkFixedPointRayCastImage* image, float requestedDepth) = 0;
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vtkSetClampMacro(PreMultipliedColors, vtkTypeBool, 0, 1);
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vtkGetMacro(PreMultipliedColors, vtkTypeBool);
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vtkBooleanMacro(PreMultipliedColors, vtkTypeBool);
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//@{
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/**
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* Set / Get the pixel scale to be applied to the image before display.
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* Can be set to scale the incoming pixel values - for example the
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* fixed point mapper uses the unsigned short API but with 15 bit
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* values so needs a scale of 2.0.
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*/
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vtkSetMacro(PixelScale, float);
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vtkGetMacro(PixelScale, float);
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//@}
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/**
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* Derived class should implement this if needed
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*/
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virtual void ReleaseGraphicsResources(vtkWindow*) {}
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protected:
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vtkRayCastImageDisplayHelper();
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~vtkRayCastImageDisplayHelper() override;
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/**
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* Have the colors already been multiplied by alpha?
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*/
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vtkTypeBool PreMultipliedColors;
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float PixelScale;
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private:
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vtkRayCastImageDisplayHelper(const vtkRayCastImageDisplayHelper&) = delete;
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void operator=(const vtkRayCastImageDisplayHelper&) = delete;
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};
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#endif
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