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cxGPUImageBuffer.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
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32 
33 
34 #ifndef CXGPUIMAGEBUFFER_H_
35 #define CXGPUIMAGEBUFFER_H_
36 
37 #include "cxResourceExport.h"
38 #include "cxPrecompiledHeader.h"
39 
40 #include <boost/shared_ptr.hpp>
41 #include <boost/weak_ptr.hpp>
42 #include <map>
43 #include <list>
44 #include "vtkForwardDeclarations.h"
45 
46 namespace cx
47 {
48 
60 class cxResource_EXPORT GPUImageDataBuffer
61 {
62 public:
63  virtual ~GPUImageDataBuffer() {}
68  virtual void allocate() = 0;
69 // /** Assuming imageData is changed,
70 // * send vtkImageData to GPU.
71 // */
72 // virtual void updateTexture() = 0;
77  virtual void bind(int textureUnitIndex) = 0;
78  virtual int getMemorySize() = 0;
79 
85  virtual unsigned int getTextureUid() const = 0;
86  //virtual vtkImageDataPtr getVtkImageData() = 0;
87 };
88 
89 typedef boost::shared_ptr<GPUImageDataBuffer> GPUImageDataBufferPtr;
90 typedef boost::weak_ptr<GPUImageDataBuffer> GPUImageDataBufferWeakPtr;
91 
93 
99 class cxResource_EXPORT GPUImageLutBuffer
100 {
101 public:
102  virtual ~GPUImageLutBuffer() {}
108  virtual void allocate() = 0;
109 // /** If data is changed, send data to GPU.
110 // */
111 // virtual void updateTexture() = 0;
116  virtual void bind(int textureUnitIndex) = 0;
119  virtual int getLutSize() const = 0;
120 };
121 
122 typedef boost::shared_ptr<GPUImageLutBuffer> GPUImageLutBufferPtr;
123 typedef boost::weak_ptr<GPUImageLutBuffer> GPUImageLutBufferWeakPtr;
124 
127 
133 class cxResource_EXPORT GPUImageBufferRepository
134 {
135 public:
136  static GPUImageBufferRepository* getInstance();
137  static void shutdown();
138 
139  GPUImageDataBufferPtr getGPUImageDataBuffer(vtkImageDataPtr volume);
140  GPUImageLutBufferPtr getGPUImageLutBuffer(vtkUnsignedCharArrayPtr lut);
141  int getMemoryUsage(int *textures);
145  void clear();
146 private:
149  class GPUImageBufferRepositoryInternal* mInternal;
150  static GPUImageBufferRepository* mInstance;
151  void tearDown();
152 };
153 
158 }
159 
160 #endif /*CXGPUIMAGEBUFFER_H_*/
Helper class for sharing GPU memory over several Views (GL contexts).
GPUImageDataBufferPtr createGPUImageDataBuffer(vtkImageDataPtr volume)
Repository for GPU buffers.
vtkSmartPointer< class vtkUnsignedCharArray > vtkUnsignedCharArrayPtr
boost::weak_ptr< class GPUImageDataBuffer > GPUImageDataBufferWeakPtr
boost::weak_ptr< class GPUImageLutBuffer > GPUImageLutBufferWeakPtr
GPUImageLutBufferPtr createGPUImageLutBuffer(vtkUnsignedCharArrayPtr lut)
boost::shared_ptr< class GPUImageDataBuffer > GPUImageDataBufferPtr
boost::shared_ptr< class GPUImageLutBuffer > GPUImageLutBufferPtr
Helper class for sharing GPU memory over several Views (GL contexts).
vtkSmartPointer< class vtkImageData > vtkImageDataPtr