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00001 #ifndef COIN_SOVOLUMEREADER_H 00002 #define COIN_SOVOLUMEREADER_H 00003 00004 /**************************************************************************\ 00005 * 00006 * This file is part of the SIM Voleon visualization library. 00007 * Copyright (C) 2003-2004 by Systems in Motion. All rights reserved. 00008 * 00009 * This library is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU General Public License 00011 * ("GPL") version 2 as published by the Free Software Foundation. 00012 * See the file LICENSE.GPL at the root directory of this source 00013 * distribution for additional information about the GNU GPL. 00014 * 00015 * For using SIM Voleon with software that can not be combined with 00016 * the GNU GPL, and for taking advantage of the additional benefits 00017 * of our support services, please contact Systems in Motion about 00018 * acquiring a SIM Voleon Professional Edition License. 00019 * 00020 * See <URL:http://www.coin3d.org/> for more information. 00021 * 00022 * Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY. 00023 * <URL:http://www.sim.no/>. 00024 * 00025 \**************************************************************************/ 00026 00027 #include <VolumeViz/nodes/SoVolumeData.h> 00028 00029 class SbBox2s; 00030 class SbBox3f; 00031 class SbVec3s; 00032 00033 00034 class SIMVOLEON_DLL_API SoVolumeReader { 00035 public: 00036 SoVolumeReader(void); 00037 virtual ~SoVolumeReader(); 00038 00039 virtual void setUserData(void * data); 00040 virtual int getNumSignificantBits(void); 00041 00042 virtual void getDataChar(SbBox3f & size, SoVolumeData::DataType & type, 00043 SbVec3s & dim) = 0; 00044 00045 enum CopyPolicy { COPY, NO_COPY, NO_COPY_AND_DELETE }; 00046 00047 virtual void getSubSlice(SbBox2s & slice, int slicenumber, void * voxels) = 0; 00048 virtual SbBool getSubVolume(SbBox3s & volume, void * voxels); 00049 virtual SbBool getSubVolume(const SbBox3s & volume, 00050 const SbVec3s subsamplelevel, void *& voxels); 00051 virtual SbBool getSubVolumeInfo(SbBox3s & volume, 00052 SbVec3s reqsubsamplelevel, 00053 SbVec3s & subsamplelevel, 00054 SoVolumeReader::CopyPolicy & policy); 00055 00056 SbVec3s getNumVoxels(SbVec3s realsize, SbVec3s subsamplinglevel) const; 00057 SbVec3s getSizeToAllocate(SbVec3s realsize, SbVec3s subsamplinglevel) const; 00058 00059 int setFilename(const char * filename); 00060 00061 protected: 00062 void * getBuffer(int64_t offset, unsigned int size); 00063 int bytesToInt(unsigned char * ptr, int sizeBytes); 00064 void swapBytes(int * intPtr, int sizeBytes); 00065 int64_t fileSize(void); 00066 00067 void * m_data; 00068 00069 private: 00070 friend class SoVolumeReaderP; 00071 class SoVolumeReaderP * pimpl; 00072 00073 // FIXME: SoVolumeData shouldn't really access m_data, as voxel data 00074 // should be stored within SoVolumeData, and not on this pointer. 00075 // 20041008 mortene. 00076 friend class SoVolumeData; // For m_data access. 00077 }; 00078 00079 #endif // !COIN_SOVOLUMEREADER_H
Copyright © 1998-2004 by Systems in Motion AS. All rights reserved.
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