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/*
Note: libiis.h in PDL distribution has iis_display
redefined
*/
/*
libiis.h - IIS constants for IIS C library v1.0
Loosely based on code from various sources
Karl Glazebrook, Anglo-Australian Observatory 30/May/1996
email: kgb@aaoepp.aao.gov.au
*/
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#define TRANSFER_ID 0
#define THING_COUNT 1
#define SUB_UNIT 2
#define CHECK_SUM 3
#define X_REGISTER 4
#define Y_REGISTER 5
#define Z_REGISTER 6
#define T_REGISTER 7
/* Transfer ID definitions */
#define IREAD 0100000
#define IWRITE 00
#define PACKED 040000
#define BYPASSIFM 020000
#define BYTE 010000
#define ADDWRITE 04000
#define ACCUM 02000
#define BLOCKXFER 01000
#define VRETRACE 0400
#define MUX32 0200
#define IMT800 0100
/* Subunits */
#define REFRESH 01
#define LUT 02
#define OFM 03
#define IFM 04
#define FEEDBACK 05
#define SCROLL 06
#define VIDEOM 07
#define SUMPROC 010
#define GRAPHICS 011
#define CURSOR 012
#define ALU 013
#define ZOOM 014
#define IPB 017
/* following from iraf "iis.h" */
#define IMCURSOR 020
#define WCS 021
/* checksum */
#define CHECKSUMVAL 0177777
/* Command definitions from iraf iis.h */
#define COMMAND 100000B
/* X-register */
#define ADVXONTC 0100000
#define ADVXONYOV 040000
/* Y-register */
#define ADVYONXOV 0100000
#define ADVYONTC 040000
/* Z-register */
#define CHAN1 01
#define CHAN2 02
#define CHAN3 04
#define CHAN4 010
#define GRCHAN 0100000
/* T-register */
#define BITPL0 01
#define BITPL1 02
#define BITPL2 04
#define BITPL3 010
#define BITPL4 020
#define BITPL5 040
#define BITPL6 0100
#define BITPL7 0200
#define ALLBITPL 0377
/* IIS WCS buffer */
/* Imtool colour numbers */
#define FMIN 1
#define FMAX 200
#define IIS_GREEN 201
#define IIS_BLACK 202
#define IIS_WHITE 203
#define IIS_RED 204
#define IIS_BLUE 206
#define IIS_YELLOW 207
/* Buffer sizes */
#define BUFFSZ 16384 /* Approx number of bytes to transfer per record */
#define RBUFFSZ 2048 /* Approx number of bytes to transfer when reading */
#define STRSIZE 1024 /* Useful string size */
#define SZ_WCSTEXT 320 /* WCS text */
/* Global variables */
static int iispipe_i; /* FIFO pipe handles */
static int iispipe_o;
static int fbconfig; /* Frame buffer configaration */
static int frameX;
static int frameY;
/* Public functions prototypes */
int iis_display(void *f, int datatype,
int N1, int N2, float fmin, float fmax, int frame);
void iis_cur(float*x, float*y, char* ch);
void iis_drawcirc(float xcen, float ycen, float radius, int colour, int frame);
void iis_open(char* inpipe, char* outpipe, int fb, int fbx, int fby);
void iis_close();
/* Private functions prototypes */
void iis_write(char* buf, int size);
void iis_read (char* buf, int size);
void iis_checksum(unsigned short *hdr);
void iis_error(char* error1, char* error2);
int iis_chan(int frame);
int iis_round ( float i );
float iis_abs (float x);
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