1 /*=========================================================================
3 * Copyright RTK Consortium
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0.txt
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 *=========================================================================*/
19 #ifndef __rtkEdfImageIO_h
20 #define __rtkEdfImageIO_h
22 #include <itkImageIOBase.h>
26 #include "clitkCommon.h"
31 * \brief Class for reading Edf image file format. Edf is the format of
32 * X-ray projection images at the ESRF.
38 class EdfImageIO : public itk::ImageIOBase
41 /** Standard class typedefs. */
42 typedef EdfImageIO Self;
43 typedef itk::ImageIOBase Superclass;
44 typedef itk::SmartPointer<Self> Pointer;
46 EdfImageIO() : Superclass() {
49 /** Method for creation through the object factory. */
52 /** Run-time type information (and related methods). */
53 itkTypeMacro(EdfImageIO, ImageIOBase);
55 /*-------- This part of the interface deals with reading data. ------ */
56 virtual void ReadImageInformation() ITK_OVERRIDE;
58 virtual bool CanReadFile( const char* FileNameToRead ) ITK_OVERRIDE;
60 virtual void Read(void * buffer) ITK_OVERRIDE;
62 /*-------- This part of the interfaces deals with writing data. ----- */
63 virtual void WriteImageInformation(bool keepOfStream);
65 virtual void WriteImageInformation() ITK_OVERRIDE {
66 WriteImageInformation(false);
69 virtual bool CanWriteFile(const char* filename) ITK_OVERRIDE;
71 virtual void Write(const void* buffer) ITK_OVERRIDE;
74 std::string m_BinaryFileName;
77 static char* edf_findInHeader( char* header, const char* key );
79 /* List of EDF supported datatypes
82 U_CHAR_DATATYPE = 0, CHAR_DATATYPE, // 8 bits = 1 B
83 U_SHORT_DATATYPE, SHORT_DATATYPE, // 16 bits = 2 B
84 U_INT_DATATYPE, INT_DATATYPE, // 32 bits = 4 B
85 U_L_INT_DATATYPE, L_INT_DATATYPE, // 32 bits = 4 B
86 FLOAT_DATATYPE, DOUBLE_DATATYPE, // 4 B, 8 B
90 /* Note - compatibility:
91 Unsigned8 = 1,Signed8, Unsigned16, Signed16,
92 Unsigned32, Signed32, Unsigned64, Signed64,
93 FloatIEEE32, DoubleIEEE64
96 /***************************************************************************
98 ***************************************************************************/
100 // table key-value structure
112 /* Returns index of the table tbl whose key matches the beginning of the
113 * search string search_str.
114 * It returns index into the table or -1 if there is no match.
117 lookup_table_nth( const struct table *tbl, const char *search_str )
122 if (tbl[k].key && !strncmp(search_str, tbl[k].key, strlen(tbl[k].key) ) )
124 return -1; // not found
128 lookup_table3_nth( const struct table3 *tbl, const char *search_str )
133 if (tbl[k].key && !strncmp(search_str, tbl[k].key, strlen(tbl[k].key) ) )
135 return -1; // not found
138 ///* Orientation of axes of the raster, as the binary matrix is saved in
139 // * the file. (Determines the scanning direction, or the "fastest" index
140 // * of the matrix in the data file.)
142 //enum EdfRasterAxes {
143 //RASTER_AXES_XrightYdown, // matricial format: rows, columns
144 //RASTER_AXES_XrightYup // cartesian coordinate system
145 // // other 6 combinations not available (not needed until now)
148 //static const struct table rasteraxes_table[] =
150 // { "XrightYdown", RASTER_AXES_XrightYdown },
151 // { "XrightYup", RASTER_AXES_XrightYup },
155 }; // end class EdfImageIO