-/******************************************************************************\r
- *\r
- * FILE IDENTIFICATION\r
- *\r
- * File Name: KEYBOARD.H\r
- * Author: Kevin Rosenberg\r
- * Purpose: Header file for IBM-PC keyboard definitions\r
- * Date Started: Jan 85\r
- *\r
- * DESCRIPTION\r
- *\r
- * MODIFICATION LOG\r
- *\r
- *****************************************************************************/\r
-\r
-#ifndef KEYBOARD_H\r
-#define KEYBOARD_H\r
-\r
-#define KEY_BKSP 8\r
-#define KEY_TAB 9\r
-#define KEY_RETURN 13\r
-#define KEY_ESCAPE 27\r
-\r
-#define KEY_HOME 0x4700\r
-#define KEY_UP 0x4800\r
-#define KEY_PGUP 0x4900\r
-#define KEY_LEFT 0x4B00\r
-#define KEY_CENTER 0x4C00 /* center of numeric keypad = 5 */\r
-#define KEY_RIGHT 0x4D00\r
-#define KEY_END 0x4F00\r
-#define KEY_DOWN 0x5000\r
-#define KEY_PGDOWN 0x5100\r
-\r
-#define KEY_F1 0x3B00\r
-#define KEY_F2 0x3C00\r
-#define KEY_F3 0x3D00\r
-#define KEY_F4 0x3E00\r
-#define KEY_F5 0x3F00\r
-#define KEY_F6 0x4000\r
-#define KEY_F7 0x4100\r
-#define KEY_F8 0x4200\r
-#define KEY_F9 0x4300\r
-#define KEY_F10 0x4400\r
-\r
-#define KEY_SHIFTF1 0x5400\r
-#define KEY_SHIFTF2 0x5500\r
-#define KEY_SHIFTF3 0x5600\r
-#define KEY_SHIFTF4 0x5700\r
-#define KEY_SHIFTF5 0x5800\r
-#define KEY_SHIFTF6 0x5900\r
-#define KEY_SHIFTF7 0x5A00\r
-#define KEY_SHIFTF8 0x5B00\r
-#define KEY_SHIFTF9 0x5C00\r
-#define KEY_SHIFTF10 0x5D00\r
-\r
-#define KEY_CTRLF1 0x5E00\r
-#define KEY_CTRLF2 0x5F00\r
-#define KEY_CTRLF3 0x6000\r
-#define KEY_CTRLF4 0x6100\r
-#define KEY_CTRLF5 0x6200\r
-#define KEY_CTRLF6 0x6300\r
-#define KEY_CTRLF7 0x6400\r
-#define KEY_CTRLF8 0x6500\r
-#define KEY_CTRLF9 0x6600\r
-#define KEY_CTRLF10 0x6700\r
-\r
-#define KEY_ALTF1 0x6800\r
-#define KEY_ALTF2 0x6900\r
-#define KEY_ALTF3 0x6A00\r
-#define KEY_ALTF4 0x6B00\r
-#define KEY_ALTF5 0x6C00\r
-#define KEY_ALTF6 0x6D00\r
-#define KEY_ALTF7 0x6E00\r
-#define KEY_ALTF8 0x6F00\r
-#define KEY_ALTF9 0x7000\r
-#define KEY_ALTF10 0x7100\r
-\r
-\r
-#endif /* #ifndef KEYBOARD_H */\r
+/*****************************************************************************
+** This is part of the CTSim program
+** Copyright (C) 1983-2000 Kevin Rosenberg
+**
+** $Id: keyboard.h,v 1.2 2000/04/28 14:14:16 kevin Exp $
+** $Log: keyboard.h,v $
+** Revision 1.2 2000/04/28 14:14:16 kevin
+** *** empty log message ***
+**
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License (version 2) as
+** published by the Free Software Foundation.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+******************************************************************************/
+/******************************************************************************
+ *
+ * FILE IDENTIFICATION
+ *
+ * File Name: KEYBOARD.H
+ * Author: Kevin Rosenberg
+ * Purpose: Header file for IBM-PC keyboard definitions
+ * Date Started: Jan 85
+ *
+ * DESCRIPTION
+ *
+ * MODIFICATION LOG
+ *
+ *****************************************************************************/
+
+#ifndef KEYBOARD_H
+#define KEYBOARD_H
+
+#define KEY_BKSP 8
+#define KEY_TAB 9
+#define KEY_RETURN 13
+#define KEY_ESCAPE 27
+
+#define KEY_HOME 0x4700
+#define KEY_UP 0x4800
+#define KEY_PGUP 0x4900
+#define KEY_LEFT 0x4B00
+#define KEY_CENTER 0x4C00 /* center of numeric keypad = 5 */
+#define KEY_RIGHT 0x4D00
+#define KEY_END 0x4F00
+#define KEY_DOWN 0x5000
+#define KEY_PGDOWN 0x5100
+
+#define KEY_F1 0x3B00
+#define KEY_F2 0x3C00
+#define KEY_F3 0x3D00
+#define KEY_F4 0x3E00
+#define KEY_F5 0x3F00
+#define KEY_F6 0x4000
+#define KEY_F7 0x4100
+#define KEY_F8 0x4200
+#define KEY_F9 0x4300
+#define KEY_F10 0x4400
+
+#define KEY_SHIFTF1 0x5400
+#define KEY_SHIFTF2 0x5500
+#define KEY_SHIFTF3 0x5600
+#define KEY_SHIFTF4 0x5700
+#define KEY_SHIFTF5 0x5800
+#define KEY_SHIFTF6 0x5900
+#define KEY_SHIFTF7 0x5A00
+#define KEY_SHIFTF8 0x5B00
+#define KEY_SHIFTF9 0x5C00
+#define KEY_SHIFTF10 0x5D00
+
+#define KEY_CTRLF1 0x5E00
+#define KEY_CTRLF2 0x5F00
+#define KEY_CTRLF3 0x6000
+#define KEY_CTRLF4 0x6100
+#define KEY_CTRLF5 0x6200
+#define KEY_CTRLF6 0x6300
+#define KEY_CTRLF7 0x6400
+#define KEY_CTRLF8 0x6500
+#define KEY_CTRLF9 0x6600
+#define KEY_CTRLF10 0x6700
+
+#define KEY_ALTF1 0x6800
+#define KEY_ALTF2 0x6900
+#define KEY_ALTF3 0x6A00
+#define KEY_ALTF4 0x6B00
+#define KEY_ALTF5 0x6C00
+#define KEY_ALTF6 0x6D00
+#define KEY_ALTF7 0x6E00
+#define KEY_ALTF8 0x6F00
+#define KEY_ALTF9 0x7000
+#define KEY_ALTF10 0x7100
+
+
+#endif /* #ifndef KEYBOARD_H */
-/* FILE IDENTIFICATION\r
- *\r
- * Name: sdf.h Header file for Standard Data FIle system\r
- * Programmer: Kevin Rosenberg\r
- * Date Started: 9-18-84\r
- * Last Change: 12-24-84\r
- */\r
-\r
-#ifndef __H_SDF\r
-#define __H_SDF\r
-\r
-#include "kmath.h"\r
-\r
-\r
-/*----------------*/\r
-/* SYSTEM ALIASES */\r
-/*----------------*/\r
-\r
-#define SDF_VERSION 2\r
-#define SDF_ID_STR "SDF"\r
-\r
-/*------------------*/\r
-/* DEFINITION BLOCK */\r
-/*------------------*/\r
-\r
-/* fixed system constants */\r
-\r
-#define BLK_SIZE 256 /* Size of a header block */\r
-#define NUM_DIRBLK 1 /* number of directory blocks */\r
-\r
-/* block types */\r
-\r
-#define BT_EMPTY 0 /* Not being used */\r
-#define BT_DIRECTORY 1 /* First blocks in file */\r
-#define BT_LABEL 2 /* Label block */\r
-\r
-/* label types */\r
-\r
-#define LT_EMPTY 0 /* label record is available for use */\r
-#define LT_TITLE 1 /* descriptive label given by user */\r
-#define LT_HISTORY 2 /* history label generated by application */\r
- /* program */\r
-#define LT_NOTE 3 /* A note created with a label editor */\r
-\r
-/* codes for open_sdf and create_sdf */\r
-\r
-#define SDF_RDONLY 0\r
-#define SDF_WRONLY 1\r
-#define SDF_RDWR 2\r
-\r
-/* function return codes */\r
-\r
-#define SDF_ERROR ERROR\r
-#define SDF_2D_ERROR SDF_ERROR\r
-#define SDF_OK OK\r
-\r
-/* types of sdf file, this area is EXPANDABLE */\r
-\r
-#define SDF_FTYPE_2D 10 /* Two-dimensional data file */\r
-\r
-\r
-/* BLOCK IDENTIFICATION\r
- *\r
- * Name: Directory Header Block\r
- * Size: Multiple of BLK_SIZE\r
- *\r
- * DESCRIPTION\r
- * This is the first block of a sdf file. It contains information on the \r
- * size of the users' data plus the number and type of header blocks.\r
- */\r
-\r
-struct dir_blk_st {\r
- int block_type; /* required at the beginning of every block */\r
- /* to identify type of block */\r
-\r
- char id_str[4]; /* identification string == SDF_ID_STR */\r
- int sdf_version; /* which version of sdf system == SDF_VERSION */\r
-\r
- int blk_size; /* size of a header block in bytes */\r
-\r
- int df_type; /* type of data file, used as identification */\r
- /* by application programs */\r
-\r
- unsigned int num_dirblk; /* number of directory header blocks */\r
- /* currently, only 1 block long */\r
- \r
-/* label directory */\r
-\r
- unsigned int start_label; /* starting position of label header blocks */\r
- unsigned int num_label; /* number of label header blocks */\r
-\r
-/* data header info */\r
-\r
- unsigned int start_dhead; /* block number of the start of the users' */\r
- /* data header blocks */\r
- unsigned int num_dhead; /* number of data header blocks */\r
- unsigned int dhead_len; /* length of data header in bytes */\r
-\r
-/* data record info */\r
-\r
- unsigned int start_drec; /* block number of start of data records */\r
- unsigned int num_drec; /* number of of user data records */\r
- unsigned int drec_size; /* size of users' record */\r
- int num_dval; /* number of values in each data record */\r
- int dval_size; /* size of data value in bytes */\r
- /* NOTE: drec_size = dval_size * num_dval */\r
-};\r
-\r
-\r
-/* BLOCK IDENTIFICATION\r
- *\r
- * Name: Label block\r
- * Size: BLK_SIZE\r
- *\r
- * DESCRIPTION \r
- * This block contains both user and history labels. Labels are alpha-\r
- * numeric. History labels include time & date stamp plus calculation time. \r
- */\r
-\r
-#define LABEL_LEN 159 /* size of alphanumeric label */\r
-#define LABELS_PER_BLOCK 1\r
- /* number of labels in each block */\r
-\r
-struct label_blk_st {\r
- int block_type; /* required at the beginning of every block */\r
- int label_type; /* type of label */\r
- char label_str[LABEL_LEN+1];/* alpha numeric label */\r
-\r
-/* history label time stamping */\r
-\r
- TIMEDATE timedate; /* time and date of operation */\r
- float calc_time; /* calculation time in seconds */\r
-};\r
-\r
-\r
-/* BLOCK IDENTIFICATION\r
- *\r
- * Name: Data Header Block\r
- * Size: Variable, but always integer multiple of BLK_SIZE\r
- *\r
- * DESCRIPTION\r
- * This block hold information entirely specific to the data in the sdf \r
- * file, such as the user coordinates of the extent of an image, or the\r
- * the rotation increment of raysum data. When an application program\r
- * reads or writes the data header, it passes the size in bytes of the\r
- * data header to be read or written. If the length of a data header\r
- * being read doesn't match the length of the data header in the file,\r
- * the header is still read, but a WARNING message is given.\r
- */\r
-\r
-\r
-\r
-/* STRUCTURE IDENTIFICATION\r
- *\r
- * Name: Data File Structure Contains all information on open files\r
- *\r
- * DESCRIPTION\r
- * This structure is generated by open_file() and create_file(), it is\r
- * passed to all subroutines of the sdf system.\r
- */\r
-\r
-struct sdfile_st {\r
- bool open; /* if file is open or not */\r
- int mode; /* read-write mode */\r
- int fd; /* file descriptor gotten from C library */\r
- bool error; /* TRUE if error occurred, all further */\r
- /* procesing is stopped */\r
- bool error_report; /* Error reporting flag */\r
-\r
- unsigned int blk_size; /* size of a header block */\r
- unsigned int num_dirblk; /* number of directory header blocks */\r
- char fname[MAXFULLNAME+1]; /* operating system filename */\r
-\r
- int df_type; /* identification type of data file */\r
-\r
-/* variables that are used when writing to a file, they define what parts\r
- * of the file have been written\r
- */\r
-\r
- struct wrt {\r
- unsigned dir : 1; /* 1 if directory header has been written */\r
- unsigned label : 1; /* 1 if labels have been written */\r
- unsigned dhead : 1; /* 1 if data header has been written */\r
- unsigned drec : 1; /* 1 when data records have been written */\r
- } written;\r
-\r
-/* Directory information to have about the file */\r
-\r
- unsigned int start_label; /* starting position of labels */\r
- unsigned int num_label; /* number of labels in file */\r
-\r
- unsigned int dhead_len; /* length of data header in bytes */\r
-\r
- unsigned int num_drec; /* number of data records */\r
- unsigned int drec_size; /* size of data records in bytes */\r
- int num_dval; /* number of values in each data record */\r
- int dval_size; /* size of data value in bytes */\r
- /* NOTE: drec_size = dval_size * num_dval */\r
-\r
-/* ffset pointers into sdf file */\r
-\r
- long int pos_dhead; /* starting position of data header */\r
- long int pos_drec; /* starting position of users' data */\r
-};\r
-\r
-\r
-union sdf_blk_un {\r
- char buf[BLK_SIZE];\r
- struct dir_blk_st dir;\r
- struct label_blk_st lab;\r
-};\r
-\r
-typedef struct dir_blk_st DIR_BLK;\r
-typedef struct label_blk_st LABEL_BLK;\r
-typedef struct sdfile_st SDFILE;\r
-typedef union sdf_blk_un SDF_BLK;\r
-\r
-\r
-/*----------------------------------------------------------------------*/\r
-/* 2-Dimensional Standard Data File Header */\r
-/*----------------------------------------------------------------------*/\r
-\r
-\r
-/* STRUCTURE IDENTIFICATION\r
- *\r
- * Name: sdf_2d_dhead_st Data header for 2d data files\r
- *\r
- * DESCRIPTION\r
- *\r
- * This structure holds the data that is stored in an image sdf file's\r
- * data header. It contains all data needed to use 2d data records\r
- */\r
-\r
-struct sdf_2d_dhead_st {\r
- int file_type; /* type of data making up this file */\r
- /* currenty, DFT_2D_IMAGE or DFT_2D_RAYSUM */\r
- int nx; /* number of rows */\r
- int ny; /* number of columns in row */\r
- int val_type; /* type of pixel value, eg, DT_FLOAT */\r
- int val_size; /* size of pixel value in bytes */\r
-\r
- bool axis_ext_kwn; /* TRUE if picture extent is known */\r
- /* stored in xmin,xmax,ymin,ymax */\r
- double xmin, ymin; /* position of lower left corner of picture */\r
- double xmax, ymax; /* position of upper right corner of picture */\r
-\r
- bool axis_incr_kwn; /* TRUE if increments are known */\r
- double xinc, yinc;\r
-\r
- bool val_ext_kwn; /* TRUE if pixel extent is known */\r
- double dvalmin, dvalmax;/* min & max data value for FLOAT & DOUBLE */\r
- long lvalmin, lvalmax; /* data extent for INT & LONG */\r
-};\r
-\r
-\r
-/* STRUCTURE IDENTIFICATION\r
- *\r
- * Name: sdf_2d_st Information about an sdf image\r
- *\r
- * DESCRIPTION\r
- *\r
- * This structure holds all the information need to access an sdf\r
- * image.\r
- */\r
-\r
-struct sdf_2d_st {\r
- struct sdf_2d_dhead_st dhead; /* image information that is stored in data header */\r
- SDFILE *dfp; /* pointer to image's standard data file */\r
- MTX *mtx; /* data values */\r
- int memory_only; /* TRUE if sdf_2d file is stored in memory only */\r
-};\r
-\r
-typedef struct sdf_2d_dhead_st SDF_2D_DHEAD;\r
-typedef struct sdf_2d_st SDF_2D;\r
-\r
-/* types of 2d data files */\r
-\r
-#define SDF_2D_IMAGE 100 /* data file type is an image */\r
-#define SDF_2D_RAYSUM 101 /* raysum data file type */\r
-\r
-\r
-/* sdf.c */\r
-SDFILE *sdf_open(const char *filename, const int mode);\r
-SDFILE *sdf_create(const char *filename, const int mode, const unsigned int num_drec, const unsigned int num_dval, const int dval_size, const int df_type);\r
-int sdf_read_label(LABEL_BLK *lrec, const int nlab, SDFILE *dfp);\r
-int sdf_write_label(LABEL_BLK *lrec, const int nlab, SDFILE *dfp);\r
-int sdf_add_label(const int ltype, const char *lstr, const double calc_time, SDFILE *dfp);\r
-int sdf_add_empty_label(SDFILE *dfp);\r
-int sdf_copy_labels(SDFILE *dfp_to, SDFILE *dfp_from);\r
-int sdf_read_dhead(void *dh_buf, const unsigned int dhead_len, SDFILE *dfp);\r
-int sdf_write_dhead(const void *dh_buf, const unsigned int dhead_len, SDFILE *dfp);\r
-int sdf_read_drec(void *drec, const int start_rec, const int num_rec, SDFILE *dfp);\r
-int sdf_write_drec(const void *drec, const int start_rec, const int num_rec, SDFILE *dfp);\r
-int sdf_read_dval(void *dval, const int rec, const int start_val, const int num_val, SDFILE *dfp);\r
-int sdf_write_dval(const void *dval, const int rec, const int start_val, const int num_val, SDFILE *dfp);\r
-int sdf_close(SDFILE *dfp);\r
-void sdf_error_report(SDFILE *dfp, const int flag);\r
-void sdf_error(const SDFILE *dfp, const char *str, ...);\r
-bool sdf_check_dfp(const SDFILE *dfp, const int mode, const char *name);\r
-void *sdf_alloc_blk(const int n, SDFILE *dfp, const char *name);\r
-int sdf_free_blk(void *hb, SDFILE *dfp, const char *name);\r
-/* sdf_2d.c */\r
-SDF_2D *sdf_2d_open(const char *fname, const int mode);\r
-SDF_2D *sdf_2d_create(const char *fname, const int mode, const int nx, const int ny, const int val_type, const int df_type);\r
-int sdf_2d_save(SDF_2D *imp);\r
-int sdf_2d_restore(SDF_2D *imp);\r
-int sdf_2d_alloc_mtx(SDF_2D *imp);\r
-int sdf_2d_free_mtx(SDF_2D *sdf_2d);\r
-int sdf_2d_read_row(char *row_buf, const unsigned int row, SDF_2D *imp);\r
-int sdf_2d_write_row(const char *row_buf, const unsigned int row, SDF_2D *imp);\r
-int sdf_2d_read_col(char *col_buf, const unsigned int col, SDF_2D *imp);\r
-int sdf_2d_write_col(const char *col_buf, const unsigned int col, SDF_2D *imp);\r
-int sdf_2d_close(SDF_2D *imp);\r
-char *sdf_2d_alloc_row(const int nrow, SDF_2D *imp);\r
-char *sdf_2d_alloc_col(const int ncol, SDF_2D *imp);\r
-void sdf_2d_error(const SDF_2D *imp, const char *str, ...);\r
-\r
-#endif\r
+/*****************************************************************************
+** This is part of the CTSim program
+** Copyright (C) 1983-2000 Kevin Rosenberg
+**
+** $Id: sdf.h,v 1.2 2000/04/28 14:14:16 kevin Exp $
+** $Log: sdf.h,v $
+** Revision 1.2 2000/04/28 14:14:16 kevin
+** *** empty log message ***
+**
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License (version 2) as
+** published by the Free Software Foundation.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+******************************************************************************/
+/* FILE IDENTIFICATION
+ *
+ * Name: sdf.h Header file for Standard Data FIle system
+ * Programmer: Kevin Rosenberg
+ * Date Started: 9-18-84
+ * Last Change: 12-24-84
+ */
+
+#ifndef __H_SDF
+#define __H_SDF
+
+#include "kmath.h"
+
+
+/*----------------*/
+/* SYSTEM ALIASES */
+/*----------------*/
+
+#define SDF_VERSION 2
+#define SDF_ID_STR "SDF"
+
+/*------------------*/
+/* DEFINITION BLOCK */
+/*------------------*/
+
+/* fixed system constants */
+
+#define BLK_SIZE 256 /* Size of a header block */
+#define NUM_DIRBLK 1 /* number of directory blocks */
+
+/* block types */
+
+#define BT_EMPTY 0 /* Not being used */
+#define BT_DIRECTORY 1 /* First blocks in file */
+#define BT_LABEL 2 /* Label block */
+
+/* label types */
+
+#define LT_EMPTY 0 /* label record is available for use */
+#define LT_TITLE 1 /* descriptive label given by user */
+#define LT_HISTORY 2 /* history label generated by application */
+ /* program */
+#define LT_NOTE 3 /* A note created with a label editor */
+
+/* codes for open_sdf and create_sdf */
+
+#define SDF_RDONLY 0
+#define SDF_WRONLY 1
+#define SDF_RDWR 2
+
+/* function return codes */
+
+#define SDF_ERROR ERROR
+#define SDF_2D_ERROR SDF_ERROR
+#define SDF_OK OK
+
+/* types of sdf file, this area is EXPANDABLE */
+
+#define SDF_FTYPE_2D 10 /* Two-dimensional data file */
+
+
+/* BLOCK IDENTIFICATION
+ *
+ * Name: Directory Header Block
+ * Size: Multiple of BLK_SIZE
+ *
+ * DESCRIPTION
+ * This is the first block of a sdf file. It contains information on the
+ * size of the users' data plus the number and type of header blocks.
+ */
+
+struct dir_blk_st {
+ int block_type; /* required at the beginning of every block */
+ /* to identify type of block */
+
+ char id_str[4]; /* identification string == SDF_ID_STR */
+ int sdf_version; /* which version of sdf system == SDF_VERSION */
+
+ int blk_size; /* size of a header block in bytes */
+
+ int df_type; /* type of data file, used as identification */
+ /* by application programs */
+
+ unsigned int num_dirblk; /* number of directory header blocks */
+ /* currently, only 1 block long */
+
+/* label directory */
+
+ unsigned int start_label; /* starting position of label header blocks */
+ unsigned int num_label; /* number of label header blocks */
+
+/* data header info */
+
+ unsigned int start_dhead; /* block number of the start of the users' */
+ /* data header blocks */
+ unsigned int num_dhead; /* number of data header blocks */
+ unsigned int dhead_len; /* length of data header in bytes */
+
+/* data record info */
+
+ unsigned int start_drec; /* block number of start of data records */
+ unsigned int num_drec; /* number of of user data records */
+ unsigned int drec_size; /* size of users' record */
+ int num_dval; /* number of values in each data record */
+ int dval_size; /* size of data value in bytes */
+ /* NOTE: drec_size = dval_size * num_dval */
+};
+
+
+/* BLOCK IDENTIFICATION
+ *
+ * Name: Label block
+ * Size: BLK_SIZE
+ *
+ * DESCRIPTION
+ * This block contains both user and history labels. Labels are alpha-
+ * numeric. History labels include time & date stamp plus calculation time.
+ */
+
+#define LABEL_LEN 159 /* size of alphanumeric label */
+#define LABELS_PER_BLOCK 1
+ /* number of labels in each block */
+
+struct label_blk_st {
+ int block_type; /* required at the beginning of every block */
+ int label_type; /* type of label */
+ char label_str[LABEL_LEN+1];/* alpha numeric label */
+
+/* history label time stamping */
+
+ TIMEDATE timedate; /* time and date of operation */
+ float calc_time; /* calculation time in seconds */
+};
+
+
+/* BLOCK IDENTIFICATION
+ *
+ * Name: Data Header Block
+ * Size: Variable, but always integer multiple of BLK_SIZE
+ *
+ * DESCRIPTION
+ * This block hold information entirely specific to the data in the sdf
+ * file, such as the user coordinates of the extent of an image, or the
+ * the rotation increment of raysum data. When an application program
+ * reads or writes the data header, it passes the size in bytes of the
+ * data header to be read or written. If the length of a data header
+ * being read doesn't match the length of the data header in the file,
+ * the header is still read, but a WARNING message is given.
+ */
+
+
+
+/* STRUCTURE IDENTIFICATION
+ *
+ * Name: Data File Structure Contains all information on open files
+ *
+ * DESCRIPTION
+ * This structure is generated by open_file() and create_file(), it is
+ * passed to all subroutines of the sdf system.
+ */
+
+struct sdfile_st {
+ bool open; /* if file is open or not */
+ int mode; /* read-write mode */
+ int fd; /* file descriptor gotten from C library */
+ bool error; /* TRUE if error occurred, all further */
+ /* procesing is stopped */
+ bool error_report; /* Error reporting flag */
+
+ unsigned int blk_size; /* size of a header block */
+ unsigned int num_dirblk; /* number of directory header blocks */
+ char fname[MAXFULLNAME+1]; /* operating system filename */
+
+ int df_type; /* identification type of data file */
+
+/* variables that are used when writing to a file, they define what parts
+ * of the file have been written
+ */
+
+ struct wrt {
+ unsigned dir : 1; /* 1 if directory header has been written */
+ unsigned label : 1; /* 1 if labels have been written */
+ unsigned dhead : 1; /* 1 if data header has been written */
+ unsigned drec : 1; /* 1 when data records have been written */
+ } written;
+
+/* Directory information to have about the file */
+
+ unsigned int start_label; /* starting position of labels */
+ unsigned int num_label; /* number of labels in file */
+
+ unsigned int dhead_len; /* length of data header in bytes */
+
+ unsigned int num_drec; /* number of data records */
+ unsigned int drec_size; /* size of data records in bytes */
+ int num_dval; /* number of values in each data record */
+ int dval_size; /* size of data value in bytes */
+ /* NOTE: drec_size = dval_size * num_dval */
+
+/* ffset pointers into sdf file */
+
+ long int pos_dhead; /* starting position of data header */
+ long int pos_drec; /* starting position of users' data */
+};
+
+
+union sdf_blk_un {
+ char buf[BLK_SIZE];
+ struct dir_blk_st dir;
+ struct label_blk_st lab;
+};
+
+typedef struct dir_blk_st DIR_BLK;
+typedef struct label_blk_st LABEL_BLK;
+typedef struct sdfile_st SDFILE;
+typedef union sdf_blk_un SDF_BLK;
+
+
+/*----------------------------------------------------------------------*/
+/* 2-Dimensional Standard Data File Header */
+/*----------------------------------------------------------------------*/
+
+
+/* STRUCTURE IDENTIFICATION
+ *
+ * Name: sdf_2d_dhead_st Data header for 2d data files
+ *
+ * DESCRIPTION
+ *
+ * This structure holds the data that is stored in an image sdf file's
+ * data header. It contains all data needed to use 2d data records
+ */
+
+struct sdf_2d_dhead_st {
+ int file_type; /* type of data making up this file */
+ /* currenty, DFT_2D_IMAGE or DFT_2D_RAYSUM */
+ int nx; /* number of rows */
+ int ny; /* number of columns in row */
+ int val_type; /* type of pixel value, eg, DT_FLOAT */
+ int val_size; /* size of pixel value in bytes */
+
+ bool axis_ext_kwn; /* TRUE if picture extent is known */
+ /* stored in xmin,xmax,ymin,ymax */
+ double xmin, ymin; /* position of lower left corner of picture */
+ double xmax, ymax; /* position of upper right corner of picture */
+
+ bool axis_incr_kwn; /* TRUE if increments are known */
+ double xinc, yinc;
+
+ bool val_ext_kwn; /* TRUE if pixel extent is known */
+ double dvalmin, dvalmax;/* min & max data value for FLOAT & DOUBLE */
+ long lvalmin, lvalmax; /* data extent for INT & LONG */
+};
+
+
+/* STRUCTURE IDENTIFICATION
+ *
+ * Name: sdf_2d_st Information about an sdf image
+ *
+ * DESCRIPTION
+ *
+ * This structure holds all the information need to access an sdf
+ * image.
+ */
+
+struct sdf_2d_st {
+ struct sdf_2d_dhead_st dhead; /* image information that is stored in data header */
+ SDFILE *dfp; /* pointer to image's standard data file */
+ MTX *mtx; /* data values */
+ int memory_only; /* TRUE if sdf_2d file is stored in memory only */
+};
+
+typedef struct sdf_2d_dhead_st SDF_2D_DHEAD;
+typedef struct sdf_2d_st SDF_2D;
+
+/* types of 2d data files */
+
+#define SDF_2D_IMAGE 100 /* data file type is an image */
+#define SDF_2D_RAYSUM 101 /* raysum data file type */
+
+
+/* sdf.c */
+SDFILE *sdf_open(const char *filename, const int mode);
+SDFILE *sdf_create(const char *filename, const int mode, const unsigned int num_drec, const unsigned int num_dval, const int dval_size, const int df_type);
+int sdf_read_label(LABEL_BLK *lrec, const int nlab, SDFILE *dfp);
+int sdf_write_label(LABEL_BLK *lrec, const int nlab, SDFILE *dfp);
+int sdf_add_label(const int ltype, const char *lstr, const double calc_time, SDFILE *dfp);
+int sdf_add_empty_label(SDFILE *dfp);
+int sdf_copy_labels(SDFILE *dfp_to, SDFILE *dfp_from);
+int sdf_read_dhead(void *dh_buf, const unsigned int dhead_len, SDFILE *dfp);
+int sdf_write_dhead(const void *dh_buf, const unsigned int dhead_len, SDFILE *dfp);
+int sdf_read_drec(void *drec, const int start_rec, const int num_rec, SDFILE *dfp);
+int sdf_write_drec(const void *drec, const int start_rec, const int num_rec, SDFILE *dfp);
+int sdf_read_dval(void *dval, const int rec, const int start_val, const int num_val, SDFILE *dfp);
+int sdf_write_dval(const void *dval, const int rec, const int start_val, const int num_val, SDFILE *dfp);
+int sdf_close(SDFILE *dfp);
+void sdf_error_report(SDFILE *dfp, const int flag);
+void sdf_error(const SDFILE *dfp, const char *str, ...);
+bool sdf_check_dfp(const SDFILE *dfp, const int mode, const char *name);
+void *sdf_alloc_blk(const int n, SDFILE *dfp, const char *name);
+int sdf_free_blk(void *hb, SDFILE *dfp, const char *name);
+/* sdf_2d.c */
+SDF_2D *sdf_2d_open(const char *fname, const int mode);
+SDF_2D *sdf_2d_create(const char *fname, const int mode, const int nx, const int ny, const int val_type, const int df_type);
+int sdf_2d_save(SDF_2D *imp);
+int sdf_2d_restore(SDF_2D *imp);
+int sdf_2d_alloc_mtx(SDF_2D *imp);
+int sdf_2d_free_mtx(SDF_2D *sdf_2d);
+int sdf_2d_read_row(char *row_buf, const unsigned int row, SDF_2D *imp);
+int sdf_2d_write_row(const char *row_buf, const unsigned int row, SDF_2D *imp);
+int sdf_2d_read_col(char *col_buf, const unsigned int col, SDF_2D *imp);
+int sdf_2d_write_col(const char *col_buf, const unsigned int col, SDF_2D *imp);
+int sdf_2d_close(SDF_2D *imp);
+char *sdf_2d_alloc_row(const int nrow, SDF_2D *imp);
+char *sdf_2d_alloc_col(const int ncol, SDF_2D *imp);
+void sdf_2d_error(const SDF_2D *imp, const char *str, ...);
+
+#endif
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