File indexing completed on 2024-12-29 04:11:47

 /***************************************************************************
  *                                                                         *
  *   copyright : (C) 2015 C. Barth Netterfield                             *
  *                   netterfield@astro.utoronto.ca                         *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  ***************************************************************************/
 
 /* ITS IMAGE HEADER FORMAT
  * ------------------------
  * [0-3]   = syncword (0xeb, 0x90, 0x14, 0x64)
  * [4]     = version
  * [5-8]   = fast frame counter (100 Hz counter from pcm)
  * [9-1]   = width [px]
  * [11-12] = height [px]
  * [13]    = number of images
  * [14]    = checksum (bitwise XOR (^) of bytes 0-13)
  * [15-]   = image data
  *
  * An individual image is formatted as:
  * Offset +
  * [0-1]   = X coordinate
  * [2-3]   = Y coordinate
  * [4-]    = raw pixel data
 */
 
 
 #ifndef ITS_H
 #define ITS_H
 
 #ifdef __cplusplus
     extern "C" {
 #endif
 
 #define ITS_OK 0
 #define ITS_NOOPEN 1
 #define ITS_UNKNOWN 2
 
 #define INDEX_WORD_SIZE 8
 
 extern char *ITS_ERRORSTR[];
 
 typedef struct {
   int fp_index;
   int fp_data;
   char *fileName;
   int status;
   int formatType;
 } ITSfile;
 
 
 typedef struct {
   unsigned short w;
   unsigned short h;
   unsigned short x;
   unsigned short y;
   int allocated;
   unsigned char *img;
 } ITSimage;
 
 ITSfile *ITSopen(char *filename);
 void ITSclose(ITSfile *its);
 
 int isITSfile(char *filename);
 
 int ITSnframes(ITSfile *its);
 
 int ITSreadimage(ITSfile *its, int frame, int i_img, ITSimage *I);
 
 void ITSInitImage(ITSimage *image);
 void ITSFreeImage(ITSimage *image);
 
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif