gatan2io.h

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00001 
00005 /*
00006  * Author: Steven Ludtke, 04/10/2003 (sludtke@bcm.edu)
00007  * Copyright (c) 2000-2006 Baylor College of Medicine
00008  * 
00009  * This software is issued under a joint BSD/GNU license. You may use the
00010  * source code in this file under either license. However, note that the
00011  * complete EMAN2 and SPARX software packages have some GPL dependencies,
00012  * so you are responsible for compliance with the licenses of these packages
00013  * if you opt to use BSD licensing. The warranty disclaimer below holds
00014  * in either instance.
00015  * 
00016  * This complete copyright notice must be included in any revised version of the
00017  * source code. Additional authorship citations may be added, but existing
00018  * author citations must be preserved.
00019  * 
00020  * This program is free software; you can redistribute it and/or modify
00021  * it under the terms of the GNU General Public License as published by
00022  * the Free Software Foundation; either version 2 of the License, or
00023  * (at your option) any later version.
00024  * 
00025  * This program is distributed in the hope that it will be useful,
00026  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00027  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00028  * GNU General Public License for more details.
00029  * 
00030  * You should have received a copy of the GNU General Public License
00031  * along with this program; if not, write to the Free Software
00032  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
00033  * 
00034  * */
00035 
00036 #ifndef eman__gatan2io_h__
00037 #define eman__gatan2io_h__ 1
00038 
00039 #include "imageio.h"
00040 
00041 namespace EMAN
00042 {
00043 
00049         class Gatan2IO:public ImageIO
00050         {
00051           public:
00052                 explicit Gatan2IO(const string & filename, IOMode rw_mode = READ_ONLY);
00053                 ~Gatan2IO();
00054 
00055                 DEFINE_IMAGEIO_FUNC;
00056                 static bool is_valid(const void *first_block);
00057           private:
00058                 enum DataType
00059                 {
00060                         GATAN2_SHORT = 1,
00061                         GATAN2_FLOAT = 2,
00062                         GATAN2_COMPLEX = 3,
00063                         GATAN2_PACKED_COMPLEX = 5,
00064                         GATAN2_CHAR = 6,
00065                         GATAN2_INT = 7,
00066                         GATAN2_INVALID
00067                 };
00068 
00069                 struct Gatan2Header
00070                 {
00071                         short version;
00072                         short un1;
00073                         short un2;
00074                         short nx;
00075                         short ny;
00076                         short len;
00077                         short type;
00078                 };
00079 
00080                 int to_em_datatype(int gatan_type);
00081 
00082           private:
00083                 string filename;
00084                 IOMode rw_mode;
00085                 FILE *gatan2_file;
00086                 Gatan2Header gatanh;
00087 
00088                 bool is_big_endian;
00089                 bool initialized;
00090         };
00091 
00092 }
00093 
00094 
00095 #endif  //eman__gatan2io_h__

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