VTK  9.3.1
vtkOpenGLRayCastImageDisplayHelper.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
3 
15 #ifndef vtkOpenGLRayCastImageDisplayHelper_h
16 #define vtkOpenGLRayCastImageDisplayHelper_h
17 
19 #include "vtkRenderingVolumeOpenGL2Module.h" // For export macro
20 
21 VTK_ABI_NAMESPACE_BEGIN
23 class vtkOpenGLHelper;
24 class vtkRenderer;
25 class vtkTextureObject;
26 class vtkVolume;
27 class vtkWindow;
28 
29 class VTKRENDERINGVOLUMEOPENGL2_EXPORT vtkOpenGLRayCastImageDisplayHelper
31 {
32 public:
35  void PrintSelf(ostream& os, vtkIndent indent) override;
36 
37  void RenderTexture(vtkVolume* vol, vtkRenderer* ren, int imageMemorySize[2],
38  int imageViewportSize[2], int imageInUseSize[2], int imageOrigin[2], float requestedDepth,
39  unsigned char* image) override;
40 
41  void RenderTexture(vtkVolume* vol, vtkRenderer* ren, int imageMemorySize[2],
42  int imageViewportSize[2], int imageInUseSize[2], int imageOrigin[2], float requestedDepth,
43  unsigned short* image) override;
44 
46  float requestedDepth) override;
47 
48  void ReleaseGraphicsResources(vtkWindow* win) override;
49 
50 protected:
53 
54  void RenderTextureInternal(vtkVolume* vol, vtkRenderer* ren, int imageMemorySize[2],
55  int imageViewportSize[2], int imageInUseSize[2], int imageOrigin[2], float requestedDepth,
56  int imageScalarType, void* image);
57 
58  // used for copying to framebuffer
61 
62 private:
64  void operator=(const vtkOpenGLRayCastImageDisplayHelper&) = delete;
65 };
66 
67 VTK_ABI_NAMESPACE_END
68 #endif
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
represents a volume (data & properties) in a rendered scene
Definition: vtkVolume.h:39
virtual void ReleaseGraphicsResources(vtkWindow *)
Derived class should implement this if needed.
abstract specification for renderers
Definition: vtkRenderer.h:61
helper class that draws the image to the screen
window superclass for vtkRenderWindow
Definition: vtkWindow.h:27
virtual void RenderTexture(vtkVolume *vol, vtkRenderer *ren, int imageMemorySize[2], int imageViewportSize[2], int imageInUseSize[2], int imageOrigin[2], float requestedDepth, unsigned char *image)=0
a simple class to control print indentation
Definition: vtkIndent.h:28
OpenGL subclass that draws the image to the screen.
static vtkRayCastImageDisplayHelper * New()
abstracts an OpenGL texture object.
helper class for a ray cast image