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cxTextureSlicePainter.h
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
5 All rights reserved.
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7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
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10 1. Redistributions of source code must retain the above copyright notice,
11  this list of conditions and the following disclaimer.
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13 2. Redistributions in binary form must reproduce the above copyright notice,
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32 
33 
34 /*
35  * vmTextureSlicePainter.h
36  *
37  * Created on: Oct 13, 2009
38  * Author: petterw
39  */
40 
41 #ifndef CXTEXTURESLICEPAINTER_H_
42 #define CXTEXTURESLICEPAINTER_H_
43 
44 #include "cxResourceVisualizationExport.h"
45 
46 #include <boost/shared_ptr.hpp>
47 #include <QString>
48 #include <vector>
49 #include "vtkForwardDeclarations.h"
50 #include "cxForwardDeclarations.h"
51 #include "cxConfig.h"
52 
53 #ifndef CX_VTK_OPENGL2
54 #include <vtkOpenGLRepresentationPainter.h>
55 #endif
56 
57 class vtkOpenGLRenderWindow;
58 class vtkUniformVariables;
59 //---------------------------------------------------------
60 namespace cx
61 {
62 
63 //#ifndef WIN32
64 //#ifndef CX_VTK_OPENGL2
65 #if !defined(CX_VTK_OPENGL2) && !defined(WIN32)
66 
67 class cxResourceVisualization_EXPORT SingleVolumePainterHelper
68 {
69  GPUImageDataBufferPtr mVolumeBuffer;
70  GPUImageLutBufferPtr mLutBuffer;
71  int mIndex;
72  float mWindow;
73  float mLevel;
74  float mLLR;
75  float mAlpha;
76 
77 public:
78  explicit SingleVolumePainterHelper(int index);
81  void SetBuffer(GPUImageDataBufferPtr buffer);
82  void SetBuffer(GPUImageLutBufferPtr buffer);
83  void SetColorAttribute(float window, float level, float llr,float alpha);
84  void initializeRendering();
85  void setUniformiArray(vtkUniformVariables* uniforms, QString name, int val);
86  void setUniformfArray(vtkUniformVariables* uniforms, QString name, float val);
87  void eachRenderInternal(vtkSmartPointer<vtkShaderProgram2> shader);
88 };
89 
90 
99 class cxResourceVisualization_EXPORT TextureSlicePainter : public vtkOpenGLRepresentationPainter
100 {
101 public:
102  static TextureSlicePainter* New();
103  vtkTypeMacro(TextureSlicePainter, vtkOpenGLRepresentationPainter);
104 
105  virtual void ReleaseGraphicsResources(vtkWindow *);
106  void PrintSelf(ostream& os, vtkIndent indent);
107 
108  void setShaderPath(QString path);
109  void SetColorAttribute(int index, float window, float level, float llr, float alpha);
110  void SetVolumeBuffer(int index, GPUImageDataBufferPtr buffer);
111  void SetLutBuffer(int index, GPUImageLutBufferPtr buffer);
112  void releaseGraphicsResources(int index);
113 
114  static bool LoadRequiredExtensions(vtkOpenGLExtensionManager* mgr);
115 
116 protected:
118  virtual ~TextureSlicePainter();
119  virtual void PrepareForRendering(vtkRenderer*, vtkActor*);
120  void RenderInternal(vtkRenderer* renderer, vtkActor* actor, unsigned long typeflags, bool forceCompileOnly);
121  bool CanRender(vtkRenderer*, vtkActor*);
122  static bool LoadRequiredExtension(vtkOpenGLExtensionManager* mgr, QString id);
123  void ClearGraphicsResources();
124 
125 private:
126  QString loadShaderFile();
127  void buildProgram(QString shaderSource, vtkOpenGLRenderWindow* renderWindow);
128  SingleVolumePainterHelper& safeIndex(int index);
129  QString replaceShaderSourceMacros(QString shaderSource);
130 
131  bool hasLoadedExtensions;
132  QString mShaderPath;
133 
134  vtkWeakPointer<vtkRenderWindow> LastContext;
135  vtkSmartPointer<vtkShaderProgram2> Shader;
136  std::vector<SingleVolumePainterHelper> mElement;
137 };
138 
139 #endif //CX_VTK_OPENGL2
140 //#endif // WIN32
141 
142 
143 //---------------------------------------------------------
144 }//end namespace
145 //---------------------------------------------------------
146 #endif /* CXTEXTURESLICEPAINTER_H_ */
Helper class for GPU rendering of slices.
boost::shared_ptr< class GPUImageDataBuffer > GPUImageDataBufferPtr
boost::shared_ptr< class GPUImageLutBuffer > GPUImageLutBufferPtr