1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 /*LINTLIBRARY*/
41
42 #include <sys/types.h>
43 #include <stdlib.h>
44 #include "curses_inc.h"
45
46 #ifdef PC6300PLUS
47 #include <fcntl.h>
48 #include <sys/console.h>
49 #endif
50
51 #define NUM_OF_SPECIFIC_TURN_OFFS 3
52 extern chtype bit_attributes[];
53
54 int Oldcolors[] = { COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN,
55 COLOR_RED, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE };
56
57 void
vidupdate(chtype newmode,chtype oldmode,int (* outc)(char))58 vidupdate(chtype newmode, chtype oldmode, int (*outc)(char))
59 {
60 bool color_terminal = (cur_term->_pairs_tbl) ? TRUE : FALSE;
61 chtype oldvideo = (oldmode & A_ATTRIBUTES) & ~A_COLOR;
62 chtype newvideo = (newmode & A_ATTRIBUTES) & ~A_COLOR;
63 int _change_video(chtype, chtype, int (*)(char));
64 void _change_color(short, int (*)(char));
65
66 /* if colors are used, extract the color related information from */
67 /* the old and new modes and then erase color-pairs fields in */
68 /* both arguments. */
69
70 if (color_terminal) {
71 /* LINTED */
72 short oldcolor = (short) PAIR_NUMBER(oldmode & A_COLOR);
73 /* LINTED */
74 short newcolor = (short) PAIR_NUMBER(newmode & A_COLOR);
75 chtype turn_off = A_COLOR;
76
77 /* erase information about video attributes that could not */
78 /* have been used with colors */
79
80 if (oldcolor == 0)
81 oldvideo &= ~turn_off;
82
83 if (no_color_video != -1)
84 turn_off |= (((chtype) no_color_video) << 16);
85
86 if (oldcolor != 0)
87 oldvideo &= ~turn_off;
88
89
90 /* if the new mode contains color information, then first */
91 /* deal with video attributes, and then with colors. This */
92 /* way color information will overwrite video information. */
93
94 if (newcolor != 0) {
95 /* erase information about video attributes that */
96 /* should not be used with colors */
97
98 newvideo &= ~turn_off;
99
100 /* if the new and the old video modes became */
101 /* the same don't bother with them */
102
103 if (newvideo != oldvideo) {
104 if ((_change_video(newvideo, oldvideo,
105 outc)) == -1) {
106 _Color_pair *cur_pair =
107 &cur_term->_cur_pair;
108 oldcolor = -1;
109 cur_pair->background =
110 cur_pair->foreground = -1;
111 }
112 }
113 if (newcolor != oldcolor)
114 _change_color(newcolor, outc);
115 }
116
117 /* new mode doesn't contain any color information. Deal */
118 /* with colors first (possibly turning of the colors that */
119 /* were contained in the oldmode, and then deal with video. */
120 /* This way video attributes will overwrite colors. */
121
122 else {
123 if (newcolor != oldcolor)
124 _change_color(newcolor, outc);
125 if (newvideo != oldvideo)
126 (void) _change_video(newvideo, oldvideo, outc);
127 }
128 } else
129 (void) _change_video(newvideo, oldvideo, outc);
130 }
131
132
133 int
_change_video(chtype newmode,chtype oldmode,int (* outc)(char))134 _change_video(chtype newmode, chtype oldmode, int (*outc)(char))
135 {
136 int rc = 0;
137
138 /* If you have set_attributes let the terminfo writer */
139 /* worry about it. */
140
141 if (!set_attributes) {
142 /*
143 * The trick is that we want to pre-process the new and oldmode
144 * so that we now know what they will really translate to on
145 * the physical screen.
146 * In the case where some attributes are being faked
147 * we get rid of the attributes being asked for and just have
148 * STANDOUT mode set. Therefore, if STANDOUT and UNDERLINE were
149 * on the screen but UNDERLINE was being faked to STANDOUT; and
150 * the new mode is just UNDERLINE, we will get rid of any faked
151 * modes and be left with and oldmode of STANDOUT and a new mode
152 * of STANDOUT, in which case the check for newmode and oldmode
153 * being equal will be true.
154 *
155 *
156 * This test is similar to the concept explained above.
157 * counter is the maximum attributes allowed on a terminal.
158 * For instance, on an hp/tvi950 without set_attributes
159 * the last video sequence sent will be the one the terminal
160 * will be in (on that spot). Therefore, in setupterm.c
161 * if ceol_standout_glitch or magic_cookie_glitch is set
162 * max_attributes is set to 1. This is because on those terminals
163 * only one attribute can be on at once. So, we pre-process the
164 * oldmode and the newmode and only leave the bits that are
165 * significant. In other words, if on an hp you ask for STANDOUT
166 * and UNDERLINE it will become only STANDOUT since that is the
167 * first bit that is looked at. If then the user goes from
168 * STANDOUT and UNDERLINE to STANDOUT and REVERSE the oldmode will
169 * become STANDOUT and the newmode will become STANDOUT.
170 *
171 * This also helps the code below in that on a hp or tvi950 only
172 * one bit will ever be set so that no code has to be added to
173 * cut out early in case two attributes were asked for.
174 */
175
176 chtype check_faked, modes[2];
177 int counter = max_attributes, i, j, tempmode;
178 int k = (cur_term->sgr_mode == oldmode) ? 1 : 2;
179
180 modes[0] = newmode;
181 modes[1] = oldmode;
182
183 while (k-- > 0) {
184 if ((check_faked = (modes[k] &
185 cur_term->sgr_faked)) != A_NORMAL) {
186 modes[k] &= ~check_faked;
187 modes[k] |= A_STANDOUT;
188 }
189
190 if ((j = counter) >= 0) {
191 tempmode = A_NORMAL;
192 if (j > 0) {
193 for (i = 0; i < NUM_ATTRIBUTES; i++) {
194 if (modes[k] &
195 bit_attributes[i]) {
196 tempmode |=
197 bit_attributes[i];
198 if (--j == 0)
199 break;
200 }
201 }
202 }
203 modes[k] = tempmode;
204 }
205 }
206 newmode = modes[0];
207 oldmode = modes[1];
208 }
209
210 if (newmode == oldmode)
211 return (rc);
212
213 #ifdef DEBUG
214 if (outf)
215 fprintf(outf, "vidupdate oldmode=%o, newmode=%o\n",
216 oldmode, newmode);
217 #endif
218
219 if (set_attributes) {
220 (void) tputs(tparm(set_attributes,
221 newmode & A_STANDOUT,
222 newmode & A_UNDERLINE,
223 newmode & A_REVERSE,
224 newmode & A_BLINK,
225 newmode & A_DIM,
226 newmode & A_BOLD,
227 newmode & A_INVIS,
228 newmode & A_PROTECT,
229 newmode & A_ALTCHARSET),
230 1, outc);
231 rc = -1;
232 } else {
233 chtype turn_on, turn_off;
234 int i;
235
236 /*
237 * If we are going to turn something on anyway and we are
238 * on a glitchy terminal, don't bother turning it off
239 * since by turning something on you turn everything else off.
240 */
241
242 if ((ceol_standout_glitch || magic_cookie_glitch >= 0) &&
243 ((turn_on = ((oldmode ^ newmode) & newmode)) !=
244 A_NORMAL)) {
245 goto turn_on_code;
246 }
247
248 if ((turn_off = (oldmode & newmode) ^ oldmode) != A_NORMAL) {
249 /*
250 * Check for things to turn off.
251 * First see if we are going to turn off something
252 * that doesn't have a specific turn off capability.
253 *
254 * Then check to see if, even though there may be a specific
255 * turn off sequence, this terminal doesn't have one or
256 * the turn off sequence also turns off something else.
257 */
258 if ((turn_off & ~(A_ALTCHARSET | A_STANDOUT | A_UNDERLINE)) ||
259 (turn_off != (turn_off & cur_term->check_turn_off))) {
260 (void) tputs(tparm_p0(exit_attribute_mode), 1, outc);
261 rc = -1;
262 oldmode = A_NORMAL;
263 } else {
264 for (i = 0; i < NUM_OF_SPECIFIC_TURN_OFFS; i++) {
265 if (turn_off & bit_attributes[i]) {
266 (void) tputs(tparm_p0
267 (cur_term->turn_off_seq[i]),
268 1, outc);
269 oldmode &= ~bit_attributes[i];
270 rc = -1;
271 }
272 }
273 }
274 }
275
276 if ((turn_on = ((oldmode ^ newmode) & newmode)) != A_NORMAL) {
277 turn_on_code:
278
279 /* Check for modes to turn on. */
280
281 for (i = 0; i < NUM_ATTRIBUTES; i++)
282 if (turn_on & bit_attributes[i]) {
283 (void) tputs(tparm_p0(cur_term->turn_on_seq[i]),
284 1, outc);
285 rc = -1;
286 /*
287 * Keep turning off the bit(s) that we just
288 * sent to the screen. As soon as turn_on
289 * reaches A_NORMAL we don't have to turn
290 * anything else on and we can
291 * break out of the loop.
292 */
293 if ((turn_on &= ~bit_attributes[i]) ==
294 A_NORMAL)
295 break;
296 }
297 }
298
299 if (magic_cookie_glitch > 0)
300 (void) tputs(cursor_left, 1, outc);
301 }
302 cur_term->sgr_mode = newmode;
303 return (rc);
304 }
305
306
307 void
_change_color(short newcolor,int (* outc)(char))308 _change_color(short newcolor, int (*outc)(char))
309 {
310 #ifndef PC6300PLUS
311 {
312 _Color_pair *ptp = cur_term->_pairs_tbl;
313 /* pairs table pointer */
314 _Color_pair *cur_pair = &cur_term->_cur_pair;
315
316 /* MORE: we may have to change some stuff, depending on whether */
317 /* HP terminals will be changing the background, or not */
318
319 if (newcolor == 0) {
320 if (orig_pair)
321 (void) tputs(tparm_p0(orig_pair), 1, outc);
322 if (set_a_background || set_a_foreground ||
323 set_background || set_foreground) {
324 cur_pair->background = -1;
325 cur_pair->foreground = -1;
326 }
327 return;
328 }
329
330 /* if we are on HP type terminal, just send an escape sequence */
331 /* to use desired color pair (we could have done some optimization: */
332 /* check if both the foreground and background of newcolor match */
333 /* the ones of cur_term->_cur_pair. but that will happen only when */
334 /* two color pairs are defined exacly the same, and probably not */
335 /* worth the effort). */
336
337 if (set_color_pair)
338 (void) tputs(tparm_p1(set_color_pair, newcolor), 1, outc);
339
340 /* on Tek model we can do some optimization. */
341
342 else {
343 if (ptp[newcolor].background != cur_pair->background) {
344 if (set_a_background)
345 (void) tputs(tparm_p1(set_a_background,
346 ptp[newcolor].background), 1, outc);
347 else if (set_background)
348 (void) tputs(tparm_p1(set_background,
349 Oldcolors[ptp[newcolor].background]),
350 1, outc);
351 cur_pair->background = ptp[newcolor].background;
352 }
353 if (ptp[newcolor].foreground != cur_pair->foreground) {
354 if (set_a_foreground)
355 (void) tputs(tparm_p1(set_a_foreground,
356 ptp[newcolor].foreground), 1, outc);
357 else if (set_foreground)
358 (void) tputs(tparm_p1(set_foreground,
359 Oldcolors[ptp[newcolor].foreground]),
360 1, outc);
361 cur_pair->foreground = ptp[newcolor].foreground;
362 }
363 }
364 }
365 #else
366 {
367 /* the following code is for PC6300 PLUS: it uses BOLD terminfo */
368 /* entry for turning on colors, and SGR0 for turning them off. */
369 /* Every time a new color-pair is used, we are forced to do an */
370 /* ioctl read, and the send 'enter_bold_mode' escape sequence. */
371 /* This could be improved by using */
372 /* DIM, UNDERLINE, and REVERSE in addition to BOLD */
373
374 struct console con;
375 _Color_pair *ptp = cur_term->_pairs_tbl;
376 /* pairs table pointer */
377 back = ptp[newcolor].background;
378 fore = ptp[newcolor].foreground;
379
380 (void) fflush(SP->term_file);
381 ioctl(cur_term->Filedes, CONIOGETDATA, &con);
382 #define BOLD 4
383 con.l[con.page].colors[BOLD] =
384 ((back + back + (fore > 5)) * 8 + fore) & 0177;
385 ioctl(cur_term->Filedes, CONIOSETDATA, &con);
386 (void) tputs(enter_bold_mode, 1, outc);
387 }
388 #endif
389 }
390