Commit | Line | Data |
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7f35cb09 | 1 | /* |
2d415723 KB |
2 | * Copyright (c) 1988 Regents of the University of California. |
3 | * All rights reserved. | |
7f35cb09 | 4 | * |
2d415723 | 5 | * Redistribution and use in source and binary forms are permitted |
b36fc510 KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
7f35cb09 GM |
16 | */ |
17 | ||
18 | #ifndef lint | |
d43d1075 | 19 | static char sccsid[] = "@(#)termout.c 4.1 (Berkeley) %G%"; |
2d415723 | 20 | #endif /* not lint */ |
7f35cb09 | 21 | |
7f35cb09 | 22 | #include <stdio.h> |
da3205fa | 23 | #include <dos.h> |
f478095f | 24 | #include "../general/general.h" |
7f35cb09 | 25 | |
7f35cb09 GM |
26 | #include "../telnet.ext" |
27 | ||
29d0babb | 28 | #include "../api/disp_asc.h" |
321beb6b GM |
29 | #include "../ascii/map3270.ext" |
30 | ||
7f35cb09 | 31 | #include "../ctlr/hostctlr.h" |
b4536ce1 GM |
32 | #include "../ctlr/externs.h" |
33 | #include "../ctlr/declare.h" | |
98e793e6 | 34 | #include "../ctlr/oia.h" |
7f35cb09 GM |
35 | #include "../ctlr/screen.h" |
36 | ||
f478095f | 37 | #include "../general/globals.h" |
7f35cb09 | 38 | |
da3205fa GM |
39 | #include "video.h" |
40 | ||
7f35cb09 GM |
41 | extern void EmptyTerminal(); |
42 | ||
43 | #define CorrectTerminalCursor() ((TransparentClock == OutputClock)? \ | |
44 | terminalCursorAddress:UnLocked? CursorAddress: HighestScreen()) | |
45 | ||
46 | ||
47 | static int terminalCursorAddress; /* where the cursor is on term */ | |
48 | static int screenInitd; /* the screen has been initialized */ | |
49 | static int screenStopped; /* the screen has been stopped */ | |
7f35cb09 GM |
50 | |
51 | static int needToRing; /* need to ring terinal bell */ | |
7f35cb09 | 52 | |
98e793e6 GM |
53 | typedef struct { |
54 | char | |
55 | data, /* The data for this position */ | |
56 | attr; /* The attributes for this position */ | |
57 | } ScreenBuffer; | |
7f35cb09 | 58 | |
98e793e6 | 59 | ScreenBuffer Screen[MAXNUMBERLINES*MAXNUMBERCOLUMNS]; |
da3205fa | 60 | ScreenBuffer saveScreen[sizeof Screen/sizeof Screen[0]]; |
7f35cb09 | 61 | \f |
7f35cb09 GM |
62 | /* OurExitString - designed to keep us from going through infinite recursion */ |
63 | ||
64 | static void | |
65 | OurExitString(file, string, value) | |
66 | FILE *file; | |
67 | char *string; | |
68 | int value; | |
69 | { | |
70 | static int recursion = 0; | |
71 | ||
72 | if (!recursion) { | |
73 | recursion = 1; | |
74 | ExitString(file, string, value); | |
75 | } | |
76 | } | |
77 | ||
78 | ||
7f35cb09 GM |
79 | static void |
80 | GoAway(from, where) | |
81 | char *from; /* routine that gave error */ | |
82 | int where; /* cursor address */ | |
83 | { | |
84 | char foo[100]; | |
85 | ||
86 | sprintf(foo, "ERR from %s at %d (%d, %d)\n", | |
87 | from, where, ScreenLine(where), ScreenLineOffset(where)); | |
88 | OurExitString(stderr, foo, 1); | |
89 | /* NOTREACHED */ | |
90 | } | |
91 | \f | |
da3205fa GM |
92 | /* |
93 | * Routines to deal with the screen. These routines are lifted | |
94 | * from mskermit. | |
95 | */ | |
96 | ||
97 | #define CRT_STATUS 0x3da /* Color card */ | |
98 | #define DISPLAY_ENABLE 0x08 /* Enable */ | |
99 | #define scrseg() ((crt_mode == 7)? 0xb000 : 0xb800) | |
100 | #define scrwait() if (crt_mode != 7) { \ | |
101 | while ((inp(CRT_STATUS)&DISPLAY_ENABLE) == 0) { \ | |
102 | ; \ | |
103 | } \ | |
104 | } | |
105 | static int | |
106 | crt_mode, | |
107 | crt_cols, | |
108 | crt_lins, | |
109 | curpage; | |
110 | ||
111 | /* | |
112 | * Set the cursor position to where it belongs. | |
113 | */ | |
114 | ||
115 | static void | |
116 | setcursor(row, column, page) | |
117 | int | |
118 | row, | |
119 | column, | |
120 | page; | |
121 | { | |
122 | union REGS inregs, outregs; | |
123 | ||
124 | inregs.h.dh = row; | |
125 | inregs.h.dl = column; | |
126 | inregs.h.bh = page; | |
127 | inregs.h.ah = SetCursorPosition; | |
128 | ||
129 | int86(BIOS_VIDEO, &inregs, &outregs); | |
130 | } | |
131 | /* | |
132 | * Read the state of the video system. Put the cursor somewhere | |
133 | * reasonable. | |
134 | */ | |
135 | ||
136 | static void | |
137 | scrini() | |
138 | { | |
139 | union REGS inregs, outregs; | |
140 | ||
141 | inregs.h.ah = CurrentVideoState; | |
142 | int86(BIOS_VIDEO, &inregs, &outregs); | |
143 | ||
144 | crt_mode = outregs.h.al; | |
145 | crt_cols = outregs.h.ah; | |
146 | crt_lins = 25; | |
147 | curpage = outregs.h.bh; | |
148 | ||
149 | inregs.h.ah = ReadCursorPosition; | |
150 | inregs.h.bh = curpage; | |
151 | ||
152 | int86(BIOS_VIDEO, &inregs, &outregs); | |
153 | ||
154 | if (outregs.h.dh > crt_lins) { | |
155 | outregs.h.dh = crt_lins; | |
156 | } | |
157 | if (outregs.h.dl > crt_cols) { | |
158 | outregs.h.dl = crt_cols; | |
159 | } | |
160 | inregs.h.dh = outregs.h.dh; | |
161 | inregs.h.dl = outregs.h.dl; | |
162 | inregs.h.bh = curpage; | |
163 | ||
164 | inregs.h.ah = SetCursorPosition; | |
165 | int86(BIOS_VIDEO, &inregs, &outregs); | |
166 | } | |
167 | ||
168 | ||
169 | static void | |
170 | scrwrite(source, length, offset) | |
171 | ScreenBuffer *source; | |
172 | int | |
173 | length, | |
174 | offset; | |
175 | { | |
176 | struct SREGS segregs; | |
177 | ||
178 | segread(&segregs); /* read the current segment register */ | |
179 | ||
180 | scrwait(); | |
84f75426 GM |
181 | movedata(segregs.ds, source, scrseg(), sizeof *source*offset, |
182 | sizeof *source*length); | |
da3205fa GM |
183 | } |
184 | ||
185 | static void | |
186 | scrsave(buffer) | |
187 | ScreenBuffer *buffer; | |
188 | { | |
189 | struct SREGS segregs; | |
190 | ||
191 | segread(&segregs); /* read the current segment register */ | |
192 | ||
193 | scrwait(); | |
84f75426 | 194 | movedata(scrseg(), 0, segregs.ds, buffer, crt_cols*crt_lins*2); |
da3205fa GM |
195 | } |
196 | ||
197 | static void | |
198 | scrrest(buffer) | |
199 | ScreenBuffer *buffer; | |
200 | { | |
84f75426 | 201 | scrwrite(buffer, crt_cols*crt_lins, 0); |
da3205fa GM |
202 | } |
203 | \f | |
7f35cb09 | 204 | static void |
98e793e6 | 205 | TryToSend() |
7f35cb09 | 206 | { |
84f75426 | 207 | #define STANDOUT 0x0a /* Highlighted mode */ |
98e793e6 | 208 | #define NORMAL 0x02 /* Normal mode */ |
84f75426 GM |
209 | #define NONDISPLAY 0x00 /* Don't display */ |
210 | ||
211 | #define DoAttribute(a) \ | |
212 | if (screenIsFormatted) { \ | |
213 | if (IsNonDisplayAttr(a)) { \ | |
214 | a = NONDISPLAY; /* don't display */ \ | |
215 | } else if (IsHighlightedAttr(a)) { \ | |
216 | a = STANDOUT; \ | |
217 | } else { \ | |
218 | a = NORMAL; \ | |
219 | } \ | |
220 | } else { \ | |
221 | a = NORMAL; /* do display on unformatted */\ | |
7f35cb09 GM |
222 | } |
223 | ScreenImage *p, *upper; | |
98e793e6 | 224 | ScreenBuffer *sp; |
7f35cb09 | 225 | int fieldattr; /* spends most of its time == 0 or 1 */ |
84f75426 | 226 | int screenIsFormatted = FormattedScreen(); |
7f35cb09 GM |
227 | |
228 | /* OK. We want to do this a quickly as possible. So, we assume we | |
229 | * only need to go from Lowest to Highest. However, if we find a | |
230 | * field in the middle, we do the whole screen. | |
231 | * | |
232 | * In particular, we separate out the two cases from the beginning. | |
233 | */ | |
234 | if ((Highest != HighestScreen()) || (Lowest != LowestScreen())) { | |
98e793e6 | 235 | sp = &Screen[Lowest]; |
7f35cb09 | 236 | p = &Host[Lowest]; |
7f35cb09 GM |
237 | upper = &Host[Highest]; |
238 | fieldattr = FieldAttributes(Lowest); | |
239 | DoAttribute(fieldattr); /* Set standout, non-display status */ | |
7f35cb09 GM |
240 | |
241 | while (p <= upper) { | |
242 | if (IsStartFieldPointer(p)) { /* New field? */ | |
243 | Highest = HighestScreen(); | |
244 | Lowest = LowestScreen(); | |
98e793e6 | 245 | TryToSend(); /* Recurse */ |
7f35cb09 GM |
246 | return; |
247 | } else if (fieldattr) { /* Should we display? */ | |
84f75426 GM |
248 | /* Display translated data */ |
249 | sp->data = disp_asc[GetHostPointer(p)]; | |
7f35cb09 | 250 | } else { |
98e793e6 | 251 | sp->data = ' '; |
7f35cb09 | 252 | } |
84f75426 | 253 | sp->attr = fieldattr; |
7f35cb09 | 254 | p++; |
98e793e6 | 255 | sp++; |
7f35cb09 GM |
256 | } |
257 | } else { /* Going from Lowest to Highest */ | |
98e793e6 | 258 | ScreenImage *End = &Host[ScreenSize]-1; |
7f35cb09 | 259 | |
98e793e6 | 260 | sp = Screen; |
7f35cb09 GM |
261 | p = Host; |
262 | fieldattr = FieldAttributes(LowestScreen()); | |
263 | DoAttribute(fieldattr); /* Set standout, non-display status */ | |
264 | ||
265 | while (p <= End) { | |
266 | if (IsStartFieldPointer(p)) { /* New field? */ | |
7f35cb09 GM |
267 | fieldattr = FieldAttributesPointer(p); /* Get attributes */ |
268 | DoAttribute(fieldattr); /* Set standout, non-display */ | |
84f75426 GM |
269 | } |
270 | if (fieldattr) { /* Should we display? */ | |
271 | /* Display translated data */ | |
272 | sp->data = disp_asc[GetHostPointer(p)]; | |
7f35cb09 | 273 | } else { |
84f75426 | 274 | sp->data = ' '; |
7f35cb09 | 275 | } |
84f75426 | 276 | sp->attr = fieldattr; |
7f35cb09 | 277 | p++; |
98e793e6 | 278 | sp++; |
7f35cb09 GM |
279 | } |
280 | } | |
98e793e6 | 281 | terminalCursorAddress = CorrectTerminalCursor(); |
84f75426 GM |
282 | /* |
283 | * We might be here just to update the cursor address. | |
284 | */ | |
285 | if (Highest >= Lowest) { | |
286 | scrwrite(Screen+Lowest, (1+Highest-Lowest), Lowest); | |
287 | } | |
da3205fa | 288 | setcursor(ScreenLine(terminalCursorAddress), |
98e793e6 | 289 | ScreenLineOffset(terminalCursorAddress), 0); |
7f35cb09 GM |
290 | Lowest = HighestScreen()+1; |
291 | Highest = LowestScreen()-1; | |
7f35cb09 | 292 | if (needToRing) { |
98e793e6 | 293 | DataToTerminal("\7", 1); |
7f35cb09 GM |
294 | needToRing = 0; |
295 | } | |
7f35cb09 GM |
296 | return; |
297 | } | |
7f35cb09 GM |
298 | \f |
299 | /* InitTerminal - called to initialize the screen, etc. */ | |
300 | ||
301 | void | |
302 | InitTerminal() | |
303 | { | |
7f35cb09 GM |
304 | InitMapping(); /* Go do mapping file (MAP3270) first */ |
305 | if (!screenInitd) { /* not initialized */ | |
01929848 GM |
306 | MaxNumberLines = 24; /* XXX */ |
307 | MaxNumberColumns = 80; /* XXX */ | |
98e793e6 | 308 | scrini(); |
da3205fa | 309 | scrsave(saveScreen); /* Save the screen buffer away */ |
98e793e6 | 310 | ClearArray(Screen); |
7f35cb09 | 311 | terminalCursorAddress = SetBufferAddress(0,0); |
7f35cb09 GM |
312 | screenInitd = 1; |
313 | screenStopped = 0; /* Not stopped */ | |
314 | } | |
7f35cb09 GM |
315 | } |
316 | ||
317 | ||
318 | /* StopScreen - called when we are going away... */ | |
319 | ||
320 | void | |
321 | StopScreen(doNewLine) | |
322 | int doNewLine; | |
323 | { | |
324 | if (screenInitd && !screenStopped) { | |
da3205fa | 325 | scrrest(saveScreen); |
6d444e60 GM |
326 | setcursor(NumberLines-1, 1, 0); |
327 | if (doNewLine) { | |
328 | StringToTerminal("\r\n"); | |
329 | } | |
330 | EmptyTerminal(); | |
331 | screenStopped = 1; | |
7f35cb09 GM |
332 | } |
333 | } | |
334 | ||
335 | ||
336 | /* RefreshScreen - called to cause the screen to be refreshed */ | |
337 | ||
338 | void | |
339 | RefreshScreen() | |
340 | { | |
98e793e6 GM |
341 | Highest = HighestScreen(); |
342 | Lowest = LowestScreen(); | |
343 | TryToSend(); | |
7f35cb09 GM |
344 | } |
345 | ||
346 | ||
347 | /* ConnectScreen - called to reconnect to the screen */ | |
348 | ||
349 | void | |
350 | ConnectScreen() | |
351 | { | |
352 | if (screenInitd) { | |
7f35cb09 | 353 | RefreshScreen(); |
7f35cb09 GM |
354 | screenStopped = 0; |
355 | } | |
356 | } | |
357 | ||
358 | /* LocalClearScreen() - clear the whole ball of wax, cheaply */ | |
359 | ||
360 | void | |
361 | LocalClearScreen() | |
362 | { | |
7f35cb09 | 363 | Clear3270(); |
98e793e6 GM |
364 | Lowest = LowestScreen(); /* everything in sync... */ |
365 | Highest = HighestScreen(); | |
366 | TryToSend(); | |
7f35cb09 | 367 | } |
98e793e6 GM |
368 | \f |
369 | /* | |
370 | * Implement the bell/error message function. | |
371 | */ | |
372 | ||
373 | int | |
374 | bellwinup = 0; /* If != 0, length of bell message */ | |
375 | static int | |
9da6eef6 | 376 | bell_len = 0; /* Length of error message */ |
98e793e6 | 377 | |
7f35cb09 GM |
378 | |
379 | void | |
380 | BellOff() | |
381 | { | |
9da6eef6 GM |
382 | ScreenBuffer a[100]; |
383 | int i; | |
384 | ||
7f35cb09 | 385 | if (bellwinup) { |
9da6eef6 GM |
386 | unsigned char blank = ' '; |
387 | ||
388 | for (i = 0; i < bell_len; i++) { | |
389 | a[i].attr = NORMAL; | |
390 | a[i].data = ' '; | |
391 | } | |
7f35cb09 | 392 | } |
9da6eef6 | 393 | scrwrite(a, bell_len, 24*80); /* XXX */ |
7f35cb09 GM |
394 | } |
395 | ||
396 | ||
397 | void | |
398 | RingBell(s) | |
399 | char *s; | |
400 | { | |
401 | needToRing = 1; | |
402 | if (s) { | |
9da6eef6 GM |
403 | int i; |
404 | ScreenBuffer bellstring[100]; | |
7f35cb09 | 405 | |
9da6eef6 GM |
406 | bell_len = strlen(s); |
407 | bellwinup = 1; | |
408 | if (bell_len > sizeof bellstring-1) { | |
98e793e6 | 409 | OurExitString(stderr, "Bell string too long.", 1); |
7f35cb09 | 410 | } |
9da6eef6 GM |
411 | for (i = 0; i < bell_len; i++) { |
412 | bellstring[i].attr = STANDOUT; | |
413 | bellstring[i].data = s[i]; | |
414 | } | |
415 | scrwrite(bellstring, bell_len, 24*80); /* XXX */ | |
7f35cb09 GM |
416 | } |
417 | } | |
418 | \f | |
98e793e6 GM |
419 | /* |
420 | * Update the OIA area. | |
421 | */ | |
422 | ||
423 | void | |
424 | ScreenOIA(oia) | |
425 | OIA *oia; | |
426 | { | |
427 | } | |
428 | \f | |
7f35cb09 GM |
429 | |
430 | /* returns a 1 if no more output available (so, go ahead and block), | |
431 | or a 0 if there is more output available (so, just poll the other | |
432 | sources/destinations, don't block). | |
433 | */ | |
434 | ||
435 | int | |
436 | DoTerminalOutput() | |
437 | { | |
438 | /* called just before a select to conserve IO to terminal */ | |
1b911685 | 439 | if (!(screenInitd||screenStopped)) { |
7f35cb09 GM |
440 | return 1; /* No output if not initialized */ |
441 | } | |
442 | if ((Lowest <= Highest) || needToRing || | |
443 | (terminalCursorAddress != CorrectTerminalCursor())) { | |
98e793e6 | 444 | TryToSend(); |
7f35cb09 GM |
445 | } |
446 | if (Lowest > Highest) { | |
447 | return 1; /* no more output now */ | |
448 | } else { | |
449 | return 0; /* more output for future */ | |
450 | } | |
451 | } | |
452 | \f | |
453 | /* | |
454 | * The following are defined to handle transparent data. | |
455 | */ | |
456 | ||
457 | void | |
458 | TransStop() | |
459 | { | |
7f35cb09 GM |
460 | RefreshScreen(); |
461 | } | |
462 | ||
463 | void | |
24f81074 | 464 | TransOut(buffer, count, kind, control) |
7f35cb09 GM |
465 | unsigned char *buffer; |
466 | int count; | |
24f81074 GM |
467 | int kind; /* 0 or 5 */ |
468 | int control; /* To see if we are done */ | |
7f35cb09 | 469 | { |
24f81074 | 470 | char *ptr; |
7f35cb09 GM |
471 | |
472 | while (DoTerminalOutput() == 0) { | |
98e793e6 | 473 | ; |
7f35cb09 | 474 | } |
24f81074 GM |
475 | for (ptr = buffer; ptr < buffer+count; ptr++) { |
476 | *ptr &= 0x7f; /* Turn off parity bit */ | |
477 | } | |
7f35cb09 | 478 | (void) DataToTerminal(buffer, count); |
24f81074 GM |
479 | if (control && (kind == 0)) { /* Send in AID byte */ |
480 | SendToIBM(); | |
481 | } else { | |
482 | TransInput(1, kind); /* Go get some data */ | |
483 | } | |
7f35cb09 | 484 | } |
98e793e6 GM |
485 | \f |
486 | /* | |
487 | * init_screen() | |
488 | * | |
489 | * Initialize variables used by screen. | |
490 | */ | |
7f35cb09 | 491 | |
98e793e6 GM |
492 | void |
493 | init_screen() | |
7f35cb09 | 494 | { |
98e793e6 | 495 | bellwinup = 0; |
7f35cb09 | 496 | } |
98e793e6 GM |
497 | |
498 |