SIMVoleon: SoVolumeReader.h Source File

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SoVolumeReader.h
1#ifndef COIN_SOVOLUMEREADER_H
2#define COIN_SOVOLUMEREADER_H
3
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34\**************************************************************************/
35
36#include <VolumeViz/nodes/SoVolumeData.h>
37
38class SbBox2s;
39class SbBox3f;
40class SbVec3s;
41
42
43 class SIMVOLEON_DLL_API SoVolumeReader {
44public:
45 SoVolumeReader(void);
46 virtual ~SoVolumeReader();
47
48 virtual void setUserData(void * data);
49 virtual int getNumSignificantBits(void);
50
51 virtual void getDataChar(SbBox3f & size, SoVolumeData::DataType & type,
52 SbVec3s & dim) = 0;
53
54 enum CopyPolicy { COPY, NO_COPY, NO_COPY_AND_DELETE };
55
56 virtual void getSubSlice(SbBox2s & slice, int slicenumber, void * voxels) = 0;
57 virtual SbBool getSubVolume(SbBox3s & volume, void * voxels);
58 virtual SbBool getSubVolume(const SbBox3s & volume,
59 const SbVec3s subsamplelevel, void *& voxels);
60 virtual SbBool getSubVolumeInfo(SbBox3s & volume,
61 SbVec3s reqsubsamplelevel,
62 SbVec3s & subsamplelevel,
63 SoVolumeReader::CopyPolicy & policy);
64
65 SbVec3s getNumVoxels(SbVec3s realsize, SbVec3s subsamplinglevel) const;
66 SbVec3s getSizeToAllocate(SbVec3s realsize, SbVec3s subsamplinglevel) const;
67
68 int setFilename(const char * filename);
69
70protected:
71 void * getBuffer(int64_t offset, unsigned int size);
72 int bytesToInt(unsigned char * ptr, int sizeBytes);
73 void swapBytes(int * intPtr, int sizeBytes);
74 int64_t fileSize(void);
75
76 void * m_data;
77
78private:
79 friend class SoVolumeReaderP;
80 class SoVolumeReaderP * pimpl;
81
82 // FIXME: SoVolumeData shouldn't really access m_data, as voxel data
83 // should be stored within SoVolumeData, and not on this pointer.
84 // 20041008 mortene.
85 friend class SoVolumeData; // For m_data access.
86};
87
88#endif // !COIN_SOVOLUMEREADER_H
SoVolumeReader::getSubSlice
virtual void getSubSlice(SbBox2s &slice, int slicenumber, void *voxels)=0
SoVolumeReader::getDataChar
virtual void getDataChar(SbBox3f &size, SoVolumeData::DataType &type, SbVec3s &dim)=0