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 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 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 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