| 1 |
/* Copyright (c) 1987 Regents of the University of California */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* aed.c - driver for AED 512 terminal. |
| 9 |
* |
| 10 |
* 2/2/87 |
| 11 |
*/ |
| 12 |
|
| 13 |
#include <stdio.h> |
| 14 |
|
| 15 |
#include "driver.h" |
| 16 |
|
| 17 |
#include "color.h" |
| 18 |
|
| 19 |
|
| 20 |
/* AED command characters */ |
| 21 |
|
| 22 |
#define AEDFMT "1888N" /* Format string to send to AED */ |
| 23 |
#define CSTAT 0100 /* Console status: lower case */ |
| 24 |
#define SCT 75 /* Set color lookup table */ |
| 25 |
#define SEC 67 /* Set color for vector drawing */ |
| 26 |
#define MOV 81 /* Set CAP (current access pointer) to x, y */ |
| 27 |
#define OPT 40 /* Miscellaneous terminal control */ |
| 28 |
#define SEN 71 /* Set encoding types */ |
| 29 |
#define RST 48 /* Reset terminal */ |
| 30 |
#define FFD 12 /* Clear screen */ |
| 31 |
#define EJC 85 /* Enable Joystick cursor positioning */ |
| 32 |
#define DJC 100 /* Disable Joystick cursor positioning */ |
| 33 |
#define SCC 99 /* Set Cursor Colors */ |
| 34 |
#define SCP 93 /* Set Cursor Parameters */ |
| 35 |
#define DFR 111 /* Draw Filled Rectangle */ |
| 36 |
#define RCP 106 /* Read Cursor Position */ |
| 37 |
#define ESC 27 /* Escape starts a command sequence */ |
| 38 |
#define SCS 96 /* Set Console Status */ |
| 39 |
#define END 1 /* Ctrl-A used to terminate command mode */ |
| 40 |
|
| 41 |
#define BLK 0 /* color table entry for black */ |
| 42 |
#define WHT 7 /* color table entry for white */ |
| 43 |
|
| 44 |
#define command(c) (putc(ESC, stdout), putc(c, stdout)) |
| 45 |
#define byte(b) putc(b, stdout) |
| 46 |
#define string(s) fputs(s, stdout) |
| 47 |
#define flush() fflush(stdout) |
| 48 |
|
| 49 |
#define GAMMA 2.5 /* exponent for color correction */ |
| 50 |
|
| 51 |
#define NCOLORS 248 /* our color table size */ |
| 52 |
#define MINPIX 8 /* minimum hardware color */ |
| 53 |
|
| 54 |
#define NCOLS 512 /* maximum # columns for output */ |
| 55 |
#define NROWS 483-COMHT /* maximum # rows for output */ |
| 56 |
#define COMHT 16 /* height of command line */ |
| 57 |
#define COMCW 63 /* maximum chars on command line */ |
| 58 |
|
| 59 |
int aed_close(), aed_clear(), aed_paintr(), |
| 60 |
aed_getcur(), aed_comout(), aed_errout(); |
| 61 |
|
| 62 |
static struct driver aed_driver = { |
| 63 |
aed_close, aed_clear, aed_paintr, aed_getcur, |
| 64 |
aed_comout, NULL, NULL, |
| 65 |
1.0, NCOLS, NROWS |
| 66 |
}; |
| 67 |
|
| 68 |
|
| 69 |
struct driver * |
| 70 |
aed_init(name, id) /* open AED */ |
| 71 |
char *name, *id; |
| 72 |
{ |
| 73 |
if (ttyset(&aed_driver, fileno(stdin)) < 0) { /* set tty driver */ |
| 74 |
stderr_v("cannot access terminal\n"); |
| 75 |
return(NULL); |
| 76 |
} |
| 77 |
command(RST); /* reset AED */ |
| 78 |
longwait(2); |
| 79 |
command(OPT); |
| 80 |
byte(6); byte(1); /* AED command set */ |
| 81 |
command(SEN); |
| 82 |
string(AEDFMT); |
| 83 |
command(SCS); /* set console status */ |
| 84 |
byte(CSTAT); |
| 85 |
command(SCC); /* set cursor type */ |
| 86 |
byte(BLK); byte(WHT); byte(15); |
| 87 |
command(SCP); |
| 88 |
byte('+'); byte(0); byte(1); |
| 89 |
make_gmap(GAMMA); /* make color map */ |
| 90 |
errvec = aed_errout; /* set error vector */ |
| 91 |
cmdvec = aed_errout; |
| 92 |
if (wrnvec != NULL) |
| 93 |
wrnvec = aed_errout; |
| 94 |
return(&aed_driver); |
| 95 |
} |
| 96 |
|
| 97 |
|
| 98 |
static |
| 99 |
aed_close() /* close AED */ |
| 100 |
{ |
| 101 |
errvec = stderr_v; /* reset error vector */ |
| 102 |
cmdvec = NULL; |
| 103 |
if (wrnvec != NULL) |
| 104 |
wrnvec = stderr_v; |
| 105 |
aedsetcap(0, 0); /* go to bottom */ |
| 106 |
command(SEC); |
| 107 |
byte(WHT); /* white text */ |
| 108 |
byte(END); |
| 109 |
byte('\n'); /* scroll */ |
| 110 |
flush(); |
| 111 |
ttydone(); |
| 112 |
} |
| 113 |
|
| 114 |
|
| 115 |
static |
| 116 |
aed_clear(x, y) /* clear AED */ |
| 117 |
int x, y; |
| 118 |
{ |
| 119 |
command(FFD); |
| 120 |
new_ctab(NCOLORS); /* init color table */ |
| 121 |
flush(); |
| 122 |
} |
| 123 |
|
| 124 |
|
| 125 |
static |
| 126 |
aed_paintr(col, xmin, ymin, xmax, ymax) /* paint a rectangle */ |
| 127 |
COLOR col; |
| 128 |
int xmin, ymin, xmax, ymax; |
| 129 |
{ |
| 130 |
extern int anewcolr(); |
| 131 |
int ndx; |
| 132 |
|
| 133 |
ndx = get_pixel(col, anewcolr); /* calls anewcolr() */ |
| 134 |
command(SEC); /* draw rectangle */ |
| 135 |
byte(ndx+MINPIX); |
| 136 |
aedsetcap(xmin, ymin+COMHT); |
| 137 |
command(DFR); |
| 138 |
aedcoord(xmax-1, ymax+(-1+COMHT)); |
| 139 |
flush(); |
| 140 |
} |
| 141 |
|
| 142 |
|
| 143 |
static int |
| 144 |
aed_getcur(xp, yp) /* get cursor position */ |
| 145 |
int *xp, *yp; |
| 146 |
{ |
| 147 |
int com; |
| 148 |
|
| 149 |
command(EJC); /* enable cursor */ |
| 150 |
com = getch(); /* get key */ |
| 151 |
command(DJC); /* disable cursor */ |
| 152 |
aedgetcap(xp, yp); /* get cursor position */ |
| 153 |
*yp -= COMHT; /* convert coordinates */ |
| 154 |
return(com); /* return key hit */ |
| 155 |
} |
| 156 |
|
| 157 |
|
| 158 |
static |
| 159 |
aed_comout(out) /* output to command line */ |
| 160 |
register char *out; |
| 161 |
{ |
| 162 |
static int newl = 1; |
| 163 |
static int inmsg = 0; |
| 164 |
|
| 165 |
while (*out) { |
| 166 |
if (newl) { /* new line */ |
| 167 |
command(SEC); |
| 168 |
byte(BLK); |
| 169 |
aedsetcap(0, 0); |
| 170 |
command(DFR); |
| 171 |
aedcoord(NCOLS-1, COMHT-1); |
| 172 |
aedsetcap(1, 4); |
| 173 |
command(SEC); /* white text */ |
| 174 |
byte(WHT); |
| 175 |
byte(END); |
| 176 |
newl = 0; |
| 177 |
} |
| 178 |
switch (*out) { |
| 179 |
case '\n': /* end of line */ |
| 180 |
newl = 1; |
| 181 |
/* fall through */ |
| 182 |
case '\r': |
| 183 |
inmsg = 0; |
| 184 |
byte('\r'); |
| 185 |
break; |
| 186 |
case '\b': /* back space */ |
| 187 |
if (inmsg > 0 && --inmsg < COMCW) |
| 188 |
byte('\b'); |
| 189 |
break; |
| 190 |
default: /* character */ |
| 191 |
if (inmsg++ < COMCW) |
| 192 |
byte(*out); |
| 193 |
break; |
| 194 |
} |
| 195 |
out++; |
| 196 |
} |
| 197 |
flush(); |
| 198 |
} |
| 199 |
|
| 200 |
|
| 201 |
static |
| 202 |
aed_errout(msg) /* print an error message */ |
| 203 |
char *msg; |
| 204 |
{ |
| 205 |
aed_comout(msg); |
| 206 |
if (*msg && msg[strlen(msg)-1] == '\n') |
| 207 |
longwait(2); |
| 208 |
} |
| 209 |
|
| 210 |
|
| 211 |
/* |
| 212 |
* aedsetcap - sets AED's current access pointer to (x, y). |
| 213 |
*/ |
| 214 |
|
| 215 |
static |
| 216 |
aedsetcap(x, y) |
| 217 |
register int x, y; |
| 218 |
{ |
| 219 |
command(MOV); |
| 220 |
aedcoord(x, y); |
| 221 |
} |
| 222 |
|
| 223 |
/* |
| 224 |
* aedcoord - puts out an (x, y) coordinate in AED 8 bit format. |
| 225 |
*/ |
| 226 |
|
| 227 |
static |
| 228 |
aedcoord(x, y) |
| 229 |
register int x, y; |
| 230 |
{ |
| 231 |
byte(((x >> 4) & 0x30) | ((y >> 8) & 0x3)); |
| 232 |
byte(x & 0xff); |
| 233 |
byte(y & 0xff); |
| 234 |
} |
| 235 |
|
| 236 |
|
| 237 |
static |
| 238 |
aedgetcap(xp, yp) /* get cursor postion */ |
| 239 |
int *xp, *yp; |
| 240 |
{ |
| 241 |
register int c; |
| 242 |
/* get cursor postition */ |
| 243 |
command(RCP); |
| 244 |
flush(); |
| 245 |
c = getch(); |
| 246 |
*xp = (c & 0x30) << 4; |
| 247 |
*yp = (c & 0x3) << 8; |
| 248 |
*xp |= getch(); |
| 249 |
*yp |= getch(); |
| 250 |
} |
| 251 |
|
| 252 |
|
| 253 |
static |
| 254 |
anewcolr(index, r, g, b) /* enter a color into our table */ |
| 255 |
int index; |
| 256 |
int r, g, b; |
| 257 |
{ |
| 258 |
command(SCT); |
| 259 |
byte((index+MINPIX)&255); |
| 260 |
byte(1); |
| 261 |
byte(r); |
| 262 |
byte(g); |
| 263 |
byte(b); |
| 264 |
flush(); |
| 265 |
} |
| 266 |
|
| 267 |
|
| 268 |
static |
| 269 |
longwait(t) /* longer wait */ |
| 270 |
int t; |
| 271 |
{ |
| 272 |
flush(); |
| 273 |
sleep(t); |
| 274 |
} |
