1 /* $OpenBSD: tty.c,v 1.385 2020/10/05 09:53:01 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/types.h> 20 #include <sys/ioctl.h> 21 22 #include <netinet/in.h> 23 24 #include <curses.h> 25 #include <errno.h> 26 #include <fcntl.h> 27 #include <resolv.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <termios.h> 31 #include <unistd.h> 32 33 #include "tmux.h" 34 35 static int tty_log_fd = -1; 36 37 static int tty_client_ready(struct client *); 38 39 static void tty_set_italics(struct tty *); 40 static int tty_try_colour(struct tty *, int, const char *); 41 static void tty_force_cursor_colour(struct tty *, const char *); 42 static void tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, 43 u_int); 44 static void tty_cursor_pane_unless_wrap(struct tty *, 45 const struct tty_ctx *, u_int, u_int); 46 static void tty_invalidate(struct tty *); 47 static void tty_colours(struct tty *, const struct grid_cell *); 48 static void tty_check_fg(struct tty *, int *, struct grid_cell *); 49 static void tty_check_bg(struct tty *, int *, struct grid_cell *); 50 static void tty_check_us(struct tty *, int *, struct grid_cell *); 51 static void tty_colours_fg(struct tty *, const struct grid_cell *); 52 static void tty_colours_bg(struct tty *, const struct grid_cell *); 53 static void tty_colours_us(struct tty *, const struct grid_cell *); 54 55 static void tty_region_pane(struct tty *, const struct tty_ctx *, u_int, 56 u_int); 57 static void tty_region(struct tty *, u_int, u_int); 58 static void tty_margin_pane(struct tty *, const struct tty_ctx *); 59 static void tty_margin(struct tty *, u_int, u_int); 60 static int tty_large_region(struct tty *, const struct tty_ctx *); 61 static int tty_fake_bce(const struct tty *, const struct grid_cell *, 62 u_int); 63 static void tty_redraw_region(struct tty *, const struct tty_ctx *); 64 static void tty_emulate_repeat(struct tty *, enum tty_code_code, 65 enum tty_code_code, u_int); 66 static void tty_repeat_space(struct tty *, u_int); 67 static void tty_draw_pane(struct tty *, const struct tty_ctx *, u_int); 68 static void tty_default_attributes(struct tty *, const struct grid_cell *, 69 int *, u_int); 70 71 #define tty_use_margin(tty) \ 72 (tty->term->flags & TERM_DECSLRM) 73 #define tty_full_width(tty, ctx) \ 74 ((ctx)->xoff == 0 && (ctx)->sx >= (tty)->sx) 75 76 #define TTY_BLOCK_INTERVAL (100000 /* 100 milliseconds */) 77 #define TTY_BLOCK_START(tty) (1 + ((tty)->sx * (tty)->sy) * 8) 78 #define TTY_BLOCK_STOP(tty) (1 + ((tty)->sx * (tty)->sy) / 8) 79 80 void 81 tty_create_log(void) 82 { 83 char name[64]; 84 85 xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid()); 86 87 tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644); 88 if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1) 89 fatal("fcntl failed"); 90 } 91 92 int 93 tty_init(struct tty *tty, struct client *c) 94 { 95 if (!isatty(c->fd)) 96 return (-1); 97 98 memset(tty, 0, sizeof *tty); 99 tty->client = c; 100 101 tty->cstyle = 0; 102 tty->ccolour = xstrdup(""); 103 104 if (tcgetattr(c->fd, &tty->tio) != 0) 105 return (-1); 106 return (0); 107 } 108 109 void 110 tty_resize(struct tty *tty) 111 { 112 struct client *c = tty->client; 113 struct winsize ws; 114 u_int sx, sy, xpixel, ypixel; 115 116 if (ioctl(c->fd, TIOCGWINSZ, &ws) != -1) { 117 sx = ws.ws_col; 118 if (sx == 0) { 119 sx = 80; 120 xpixel = 0; 121 } else 122 xpixel = ws.ws_xpixel / sx; 123 sy = ws.ws_row; 124 if (sy == 0) { 125 sy = 24; 126 ypixel = 0; 127 } else 128 ypixel = ws.ws_ypixel / sy; 129 } else { 130 sx = 80; 131 sy = 24; 132 xpixel = 0; 133 ypixel = 0; 134 } 135 log_debug("%s: %s now %ux%u (%ux%u)", __func__, c->name, sx, sy, 136 xpixel, ypixel); 137 tty_set_size(tty, sx, sy, xpixel, ypixel); 138 tty_invalidate(tty); 139 } 140 141 void 142 tty_set_size(struct tty *tty, u_int sx, u_int sy, u_int xpixel, u_int ypixel) 143 { 144 tty->sx = sx; 145 tty->sy = sy; 146 tty->xpixel = xpixel; 147 tty->ypixel = ypixel; 148 } 149 150 static void 151 tty_read_callback(__unused int fd, __unused short events, void *data) 152 { 153 struct tty *tty = data; 154 struct client *c = tty->client; 155 const char *name = c->name; 156 size_t size = EVBUFFER_LENGTH(tty->in); 157 int nread; 158 159 nread = evbuffer_read(tty->in, c->fd, -1); 160 if (nread == 0 || nread == -1) { 161 if (nread == 0) 162 log_debug("%s: read closed", name); 163 else 164 log_debug("%s: read error: %s", name, strerror(errno)); 165 event_del(&tty->event_in); 166 server_client_lost(tty->client); 167 return; 168 } 169 log_debug("%s: read %d bytes (already %zu)", name, nread, size); 170 171 while (tty_keys_next(tty)) 172 ; 173 } 174 175 static void 176 tty_timer_callback(__unused int fd, __unused short events, void *data) 177 { 178 struct tty *tty = data; 179 struct client *c = tty->client; 180 struct timeval tv = { .tv_usec = TTY_BLOCK_INTERVAL }; 181 182 log_debug("%s: %zu discarded", c->name, tty->discarded); 183 184 c->flags |= CLIENT_ALLREDRAWFLAGS; 185 c->discarded += tty->discarded; 186 187 if (tty->discarded < TTY_BLOCK_STOP(tty)) { 188 tty->flags &= ~TTY_BLOCK; 189 tty_invalidate(tty); 190 return; 191 } 192 tty->discarded = 0; 193 evtimer_add(&tty->timer, &tv); 194 } 195 196 static int 197 tty_block_maybe(struct tty *tty) 198 { 199 struct client *c = tty->client; 200 size_t size = EVBUFFER_LENGTH(tty->out); 201 struct timeval tv = { .tv_usec = TTY_BLOCK_INTERVAL }; 202 203 if (size < TTY_BLOCK_START(tty)) 204 return (0); 205 206 if (tty->flags & TTY_BLOCK) 207 return (1); 208 tty->flags |= TTY_BLOCK; 209 210 log_debug("%s: can't keep up, %zu discarded", c->name, size); 211 212 evbuffer_drain(tty->out, size); 213 c->discarded += size; 214 215 tty->discarded = 0; 216 evtimer_add(&tty->timer, &tv); 217 return (1); 218 } 219 220 static void 221 tty_write_callback(__unused int fd, __unused short events, void *data) 222 { 223 struct tty *tty = data; 224 struct client *c = tty->client; 225 size_t size = EVBUFFER_LENGTH(tty->out); 226 int nwrite; 227 228 nwrite = evbuffer_write(tty->out, c->fd); 229 if (nwrite == -1) 230 return; 231 log_debug("%s: wrote %d bytes (of %zu)", c->name, nwrite, size); 232 233 if (c->redraw > 0) { 234 if ((size_t)nwrite >= c->redraw) 235 c->redraw = 0; 236 else 237 c->redraw -= nwrite; 238 log_debug("%s: waiting for redraw, %zu bytes left", c->name, 239 c->redraw); 240 } else if (tty_block_maybe(tty)) 241 return; 242 243 if (EVBUFFER_LENGTH(tty->out) != 0) 244 event_add(&tty->event_out, NULL); 245 } 246 247 int 248 tty_open(struct tty *tty, char **cause) 249 { 250 struct client *c = tty->client; 251 252 tty->term = tty_term_create(tty, c->term_name, &c->term_features, 253 c->fd, cause); 254 if (tty->term == NULL) { 255 tty_close(tty); 256 return (-1); 257 } 258 tty->flags |= TTY_OPENED; 259 260 tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_BLOCK|TTY_TIMER); 261 262 event_set(&tty->event_in, c->fd, EV_PERSIST|EV_READ, 263 tty_read_callback, tty); 264 tty->in = evbuffer_new(); 265 if (tty->in == NULL) 266 fatal("out of memory"); 267 268 event_set(&tty->event_out, c->fd, EV_WRITE, tty_write_callback, tty); 269 tty->out = evbuffer_new(); 270 if (tty->out == NULL) 271 fatal("out of memory"); 272 273 evtimer_set(&tty->timer, tty_timer_callback, tty); 274 275 tty_start_tty(tty); 276 277 tty_keys_build(tty); 278 279 return (0); 280 } 281 282 static void 283 tty_start_timer_callback(__unused int fd, __unused short events, void *data) 284 { 285 struct tty *tty = data; 286 struct client *c = tty->client; 287 288 log_debug("%s: start timer fired", c->name); 289 if ((tty->flags & (TTY_HAVEDA|TTY_HAVEXDA)) == 0) 290 tty_update_features(tty); 291 tty->flags |= (TTY_HAVEDA|TTY_HAVEXDA); 292 } 293 294 void 295 tty_start_tty(struct tty *tty) 296 { 297 struct client *c = tty->client; 298 struct termios tio; 299 struct timeval tv = { .tv_sec = 1 }; 300 301 setblocking(c->fd, 0); 302 event_add(&tty->event_in, NULL); 303 304 memcpy(&tio, &tty->tio, sizeof tio); 305 tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP); 306 tio.c_iflag |= IGNBRK; 307 tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET); 308 tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|ECHOPRT| 309 ECHOKE|ISIG); 310 tio.c_cc[VMIN] = 1; 311 tio.c_cc[VTIME] = 0; 312 if (tcsetattr(c->fd, TCSANOW, &tio) == 0) 313 tcflush(c->fd, TCIOFLUSH); 314 315 tty_putcode(tty, TTYC_SMCUP); 316 317 tty_putcode(tty, TTYC_SMKX); 318 tty_putcode(tty, TTYC_CLEAR); 319 320 if (tty_acs_needed(tty)) { 321 log_debug("%s: using capabilities for ACS", c->name); 322 tty_putcode(tty, TTYC_ENACS); 323 } else 324 log_debug("%s: using UTF-8 for ACS", c->name); 325 326 tty_putcode(tty, TTYC_CNORM); 327 if (tty_term_has(tty->term, TTYC_KMOUS)) { 328 tty_puts(tty, "\033[?1000l\033[?1002l\033[?1003l"); 329 tty_puts(tty, "\033[?1006l\033[?1005l"); 330 } 331 332 evtimer_set(&tty->start_timer, tty_start_timer_callback, tty); 333 evtimer_add(&tty->start_timer, &tv); 334 335 tty->flags |= TTY_STARTED; 336 tty_invalidate(tty); 337 338 if (*tty->ccolour != '\0') 339 tty_force_cursor_colour(tty, ""); 340 341 tty->mouse_drag_flag = 0; 342 tty->mouse_drag_update = NULL; 343 tty->mouse_drag_release = NULL; 344 } 345 346 void 347 tty_send_requests(struct tty *tty) 348 { 349 if (~tty->flags & TTY_STARTED) 350 return; 351 352 if (tty->term->flags & TERM_VT100LIKE) { 353 if (~tty->flags & TTY_HAVEDA) 354 tty_puts(tty, "\033[>c"); 355 if (~tty->flags & TTY_HAVEXDA) 356 tty_puts(tty, "\033[>q"); 357 } else 358 tty->flags |= (TTY_HAVEDA|TTY_HAVEXDA); 359 } 360 361 void 362 tty_stop_tty(struct tty *tty) 363 { 364 struct client *c = tty->client; 365 struct winsize ws; 366 367 if (!(tty->flags & TTY_STARTED)) 368 return; 369 tty->flags &= ~TTY_STARTED; 370 371 evtimer_del(&tty->start_timer); 372 373 event_del(&tty->timer); 374 tty->flags &= ~TTY_BLOCK; 375 376 event_del(&tty->event_in); 377 event_del(&tty->event_out); 378 379 /* 380 * Be flexible about error handling and try not kill the server just 381 * because the fd is invalid. Things like ssh -t can easily leave us 382 * with a dead tty. 383 */ 384 if (ioctl(c->fd, TIOCGWINSZ, &ws) == -1) 385 return; 386 if (tcsetattr(c->fd, TCSANOW, &tty->tio) == -1) 387 return; 388 389 tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1)); 390 if (tty_acs_needed(tty)) 391 tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS)); 392 tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0)); 393 tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX)); 394 tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR)); 395 if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) { 396 if (tty_term_has(tty->term, TTYC_SE)) 397 tty_raw(tty, tty_term_string(tty->term, TTYC_SE)); 398 else 399 tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0)); 400 } 401 if (tty->mode & MODE_BRACKETPASTE) 402 tty_raw(tty, tty_term_string(tty->term, TTYC_DSBP)); 403 if (*tty->ccolour != '\0') 404 tty_raw(tty, tty_term_string(tty->term, TTYC_CR)); 405 406 tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM)); 407 if (tty_term_has(tty->term, TTYC_KMOUS)) { 408 tty_raw(tty, "\033[?1000l\033[?1002l\033[?1003l"); 409 tty_raw(tty, "\033[?1006l\033[?1005l"); 410 } 411 412 if (tty->term->flags & TERM_VT100LIKE) 413 tty_raw(tty, "\033[?7727l"); 414 tty_raw(tty, tty_term_string(tty->term, TTYC_DSFCS)); 415 tty_raw(tty, tty_term_string(tty->term, TTYC_DSEKS)); 416 417 if (tty_use_margin(tty)) 418 tty_raw(tty, tty_term_string(tty->term, TTYC_DSMG)); 419 tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP)); 420 421 setblocking(c->fd, 1); 422 } 423 424 void 425 tty_close(struct tty *tty) 426 { 427 if (event_initialized(&tty->key_timer)) 428 evtimer_del(&tty->key_timer); 429 tty_stop_tty(tty); 430 431 if (tty->flags & TTY_OPENED) { 432 evbuffer_free(tty->in); 433 event_del(&tty->event_in); 434 evbuffer_free(tty->out); 435 event_del(&tty->event_out); 436 437 tty_term_free(tty->term); 438 tty_keys_free(tty); 439 440 tty->flags &= ~TTY_OPENED; 441 } 442 } 443 444 void 445 tty_free(struct tty *tty) 446 { 447 tty_close(tty); 448 free(tty->ccolour); 449 } 450 451 void 452 tty_update_features(struct tty *tty) 453 { 454 struct client *c = tty->client; 455 456 if (tty_apply_features(tty->term, c->term_features)) 457 tty_term_apply_overrides(tty->term); 458 459 if (tty_use_margin(tty)) 460 tty_putcode(tty, TTYC_ENMG); 461 if (options_get_number(global_options, "extended-keys")) 462 tty_puts(tty, tty_term_string(tty->term, TTYC_ENEKS)); 463 if (options_get_number(global_options, "focus-events")) 464 tty_puts(tty, tty_term_string(tty->term, TTYC_ENFCS)); 465 if (tty->term->flags & TERM_VT100LIKE) 466 tty_puts(tty, "\033[?7727h"); 467 } 468 469 void 470 tty_raw(struct tty *tty, const char *s) 471 { 472 struct client *c = tty->client; 473 ssize_t n, slen; 474 u_int i; 475 476 slen = strlen(s); 477 for (i = 0; i < 5; i++) { 478 n = write(c->fd, s, slen); 479 if (n >= 0) { 480 s += n; 481 slen -= n; 482 if (slen == 0) 483 break; 484 } else if (n == -1 && errno != EAGAIN) 485 break; 486 usleep(100); 487 } 488 } 489 490 void 491 tty_putcode(struct tty *tty, enum tty_code_code code) 492 { 493 tty_puts(tty, tty_term_string(tty->term, code)); 494 } 495 496 void 497 tty_putcode1(struct tty *tty, enum tty_code_code code, int a) 498 { 499 if (a < 0) 500 return; 501 tty_puts(tty, tty_term_string1(tty->term, code, a)); 502 } 503 504 void 505 tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b) 506 { 507 if (a < 0 || b < 0) 508 return; 509 tty_puts(tty, tty_term_string2(tty->term, code, a, b)); 510 } 511 512 void 513 tty_putcode3(struct tty *tty, enum tty_code_code code, int a, int b, int c) 514 { 515 if (a < 0 || b < 0 || c < 0) 516 return; 517 tty_puts(tty, tty_term_string3(tty->term, code, a, b, c)); 518 } 519 520 void 521 tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a) 522 { 523 if (a != NULL) 524 tty_puts(tty, tty_term_ptr1(tty->term, code, a)); 525 } 526 527 void 528 tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a, 529 const void *b) 530 { 531 if (a != NULL && b != NULL) 532 tty_puts(tty, tty_term_ptr2(tty->term, code, a, b)); 533 } 534 535 static void 536 tty_add(struct tty *tty, const char *buf, size_t len) 537 { 538 struct client *c = tty->client; 539 540 if (tty->flags & TTY_BLOCK) { 541 tty->discarded += len; 542 return; 543 } 544 545 evbuffer_add(tty->out, buf, len); 546 log_debug("%s: %.*s", c->name, (int)len, buf); 547 c->written += len; 548 549 if (tty_log_fd != -1) 550 write(tty_log_fd, buf, len); 551 if (tty->flags & TTY_STARTED) 552 event_add(&tty->event_out, NULL); 553 } 554 555 void 556 tty_puts(struct tty *tty, const char *s) 557 { 558 if (*s != '\0') 559 tty_add(tty, s, strlen(s)); 560 } 561 562 void 563 tty_putc(struct tty *tty, u_char ch) 564 { 565 const char *acs; 566 567 if ((tty->term->flags & TERM_NOAM) && 568 ch >= 0x20 && ch != 0x7f && 569 tty->cy == tty->sy - 1 && 570 tty->cx + 1 >= tty->sx) 571 return; 572 573 if (tty->cell.attr & GRID_ATTR_CHARSET) { 574 acs = tty_acs_get(tty, ch); 575 if (acs != NULL) 576 tty_add(tty, acs, strlen(acs)); 577 else 578 tty_add(tty, &ch, 1); 579 } else 580 tty_add(tty, &ch, 1); 581 582 if (ch >= 0x20 && ch != 0x7f) { 583 if (tty->cx >= tty->sx) { 584 tty->cx = 1; 585 if (tty->cy != tty->rlower) 586 tty->cy++; 587 588 /* 589 * On !am terminals, force the cursor position to where 590 * we think it should be after a line wrap - this means 591 * it works on sensible terminals as well. 592 */ 593 if (tty->term->flags & TERM_NOAM) 594 tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx); 595 } else 596 tty->cx++; 597 } 598 } 599 600 void 601 tty_putn(struct tty *tty, const void *buf, size_t len, u_int width) 602 { 603 if ((tty->term->flags & TERM_NOAM) && 604 tty->cy == tty->sy - 1 && 605 tty->cx + len >= tty->sx) 606 len = tty->sx - tty->cx - 1; 607 608 tty_add(tty, buf, len); 609 if (tty->cx + width > tty->sx) { 610 tty->cx = (tty->cx + width) - tty->sx; 611 if (tty->cx <= tty->sx) 612 tty->cy++; 613 else 614 tty->cx = tty->cy = UINT_MAX; 615 } else 616 tty->cx += width; 617 } 618 619 static void 620 tty_set_italics(struct tty *tty) 621 { 622 const char *s; 623 624 if (tty_term_has(tty->term, TTYC_SITM)) { 625 s = options_get_string(global_options, "default-terminal"); 626 if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) { 627 tty_putcode(tty, TTYC_SITM); 628 return; 629 } 630 } 631 tty_putcode(tty, TTYC_SMSO); 632 } 633 634 void 635 tty_set_title(struct tty *tty, const char *title) 636 { 637 if (!tty_term_has(tty->term, TTYC_TSL) || 638 !tty_term_has(tty->term, TTYC_FSL)) 639 return; 640 641 tty_putcode(tty, TTYC_TSL); 642 tty_puts(tty, title); 643 tty_putcode(tty, TTYC_FSL); 644 } 645 646 static void 647 tty_force_cursor_colour(struct tty *tty, const char *ccolour) 648 { 649 if (*ccolour == '\0') 650 tty_putcode(tty, TTYC_CR); 651 else 652 tty_putcode_ptr1(tty, TTYC_CS, ccolour); 653 free(tty->ccolour); 654 tty->ccolour = xstrdup(ccolour); 655 } 656 657 void 658 tty_update_mode(struct tty *tty, int mode, struct screen *s) 659 { 660 struct client *c = tty->client; 661 int changed; 662 663 if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0) 664 tty_force_cursor_colour(tty, s->ccolour); 665 666 if (tty->flags & TTY_NOCURSOR) 667 mode &= ~MODE_CURSOR; 668 669 changed = mode ^ tty->mode; 670 if (changed != 0) 671 log_debug("%s: update mode %x to %x", c->name, tty->mode, mode); 672 673 if (changed & MODE_BLINKING) { 674 if (tty_term_has(tty->term, TTYC_CVVIS)) 675 tty_putcode(tty, TTYC_CVVIS); 676 else 677 tty_putcode(tty, TTYC_CNORM); 678 changed |= MODE_CURSOR; 679 } 680 if (changed & MODE_CURSOR) { 681 if (mode & MODE_CURSOR) 682 tty_putcode(tty, TTYC_CNORM); 683 else 684 tty_putcode(tty, TTYC_CIVIS); 685 } 686 if (s != NULL && tty->cstyle != s->cstyle) { 687 if (tty_term_has(tty->term, TTYC_SS)) { 688 if (s->cstyle == 0 && tty_term_has(tty->term, TTYC_SE)) 689 tty_putcode(tty, TTYC_SE); 690 else 691 tty_putcode1(tty, TTYC_SS, s->cstyle); 692 } 693 tty->cstyle = s->cstyle; 694 } 695 if ((changed & ALL_MOUSE_MODES) && 696 tty_term_has(tty->term, TTYC_KMOUS)) { 697 if ((mode & ALL_MOUSE_MODES) == 0) 698 tty_puts(tty, "\033[?1006l"); 699 if ((changed & MODE_MOUSE_STANDARD) && 700 (~mode & MODE_MOUSE_STANDARD)) 701 tty_puts(tty, "\033[?1000l"); 702 if ((changed & MODE_MOUSE_BUTTON) && 703 (~mode & MODE_MOUSE_BUTTON)) 704 tty_puts(tty, "\033[?1002l"); 705 if ((changed & MODE_MOUSE_ALL) && 706 (~mode & MODE_MOUSE_ALL)) 707 tty_puts(tty, "\033[?1003l"); 708 709 if (mode & ALL_MOUSE_MODES) 710 tty_puts(tty, "\033[?1006h"); 711 if ((changed & MODE_MOUSE_STANDARD) && 712 (mode & MODE_MOUSE_STANDARD)) 713 tty_puts(tty, "\033[?1000h"); 714 if ((changed & MODE_MOUSE_BUTTON) && 715 (mode & MODE_MOUSE_BUTTON)) 716 tty_puts(tty, "\033[?1002h"); 717 if ((changed & MODE_MOUSE_ALL) && 718 (mode & MODE_MOUSE_ALL)) 719 tty_puts(tty, "\033[?1003h"); 720 } 721 if (changed & MODE_BRACKETPASTE) { 722 if (mode & MODE_BRACKETPASTE) 723 tty_putcode(tty, TTYC_ENBP); 724 else 725 tty_putcode(tty, TTYC_DSBP); 726 } 727 tty->mode = mode; 728 } 729 730 static void 731 tty_emulate_repeat(struct tty *tty, enum tty_code_code code, 732 enum tty_code_code code1, u_int n) 733 { 734 if (tty_term_has(tty->term, code)) 735 tty_putcode1(tty, code, n); 736 else { 737 while (n-- > 0) 738 tty_putcode(tty, code1); 739 } 740 } 741 742 static void 743 tty_repeat_space(struct tty *tty, u_int n) 744 { 745 static char s[500]; 746 747 if (*s != ' ') 748 memset(s, ' ', sizeof s); 749 750 while (n > sizeof s) { 751 tty_putn(tty, s, sizeof s, sizeof s); 752 n -= sizeof s; 753 } 754 if (n != 0) 755 tty_putn(tty, s, n, n); 756 } 757 758 /* Is this window bigger than the terminal? */ 759 int 760 tty_window_bigger(struct tty *tty) 761 { 762 struct client *c = tty->client; 763 struct window *w = c->session->curw->window; 764 765 return (tty->sx < w->sx || tty->sy - status_line_size(c) < w->sy); 766 } 767 768 /* What offset should this window be drawn at? */ 769 int 770 tty_window_offset(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy) 771 { 772 *ox = tty->oox; 773 *oy = tty->ooy; 774 *sx = tty->osx; 775 *sy = tty->osy; 776 777 return (tty->oflag); 778 } 779 780 /* What offset should this window be drawn at? */ 781 static int 782 tty_window_offset1(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy) 783 { 784 struct client *c = tty->client; 785 struct window *w = c->session->curw->window; 786 struct window_pane *wp = server_client_get_pane(c); 787 u_int cx, cy, lines; 788 789 lines = status_line_size(c); 790 791 if (tty->sx >= w->sx && tty->sy - lines >= w->sy) { 792 *ox = 0; 793 *oy = 0; 794 *sx = w->sx; 795 *sy = w->sy; 796 797 c->pan_window = NULL; 798 return (0); 799 } 800 801 *sx = tty->sx; 802 *sy = tty->sy - lines; 803 804 if (c->pan_window == w) { 805 if (*sx >= w->sx) 806 c->pan_ox = 0; 807 else if (c->pan_ox + *sx > w->sx) 808 c->pan_ox = w->sx - *sx; 809 *ox = c->pan_ox; 810 if (*sy >= w->sy) 811 c->pan_oy = 0; 812 else if (c->pan_oy + *sy > w->sy) 813 c->pan_oy = w->sy - *sy; 814 *oy = c->pan_oy; 815 return (1); 816 } 817 818 if (~wp->screen->mode & MODE_CURSOR) { 819 *ox = 0; 820 *oy = 0; 821 } else { 822 cx = wp->xoff + wp->screen->cx; 823 cy = wp->yoff + wp->screen->cy; 824 825 if (cx < *sx) 826 *ox = 0; 827 else if (cx > w->sx - *sx) 828 *ox = w->sx - *sx; 829 else 830 *ox = cx - *sx / 2; 831 832 if (cy < *sy) 833 *oy = 0; 834 else if (cy > w->sy - *sy) 835 *oy = w->sy - *sy; 836 else 837 *oy = cy - *sy / 2; 838 } 839 840 c->pan_window = NULL; 841 return (1); 842 } 843 844 /* Update stored offsets for a window and redraw if necessary. */ 845 void 846 tty_update_window_offset(struct window *w) 847 { 848 struct client *c; 849 850 TAILQ_FOREACH(c, &clients, entry) { 851 if (c->session != NULL && c->session->curw->window == w) 852 tty_update_client_offset(c); 853 } 854 } 855 856 /* Update stored offsets for a client and redraw if necessary. */ 857 void 858 tty_update_client_offset(struct client *c) 859 { 860 u_int ox, oy, sx, sy; 861 862 if (~c->flags & CLIENT_TERMINAL) 863 return; 864 865 c->tty.oflag = tty_window_offset1(&c->tty, &ox, &oy, &sx, &sy); 866 if (ox == c->tty.oox && 867 oy == c->tty.ooy && 868 sx == c->tty.osx && 869 sy == c->tty.osy) 870 return; 871 872 log_debug ("%s: %s offset has changed (%u,%u %ux%u -> %u,%u %ux%u)", 873 __func__, c->name, c->tty.oox, c->tty.ooy, c->tty.osx, c->tty.osy, 874 ox, oy, sx, sy); 875 876 c->tty.oox = ox; 877 c->tty.ooy = oy; 878 c->tty.osx = sx; 879 c->tty.osy = sy; 880 881 c->flags |= (CLIENT_REDRAWWINDOW|CLIENT_REDRAWSTATUS); 882 } 883 884 /* Get a palette entry. */ 885 static int 886 tty_get_palette(int *palette, int c) 887 { 888 int new; 889 890 if (palette == NULL) 891 return (-1); 892 893 new = -1; 894 if (c < 8) 895 new = palette[c]; 896 else if (c >= 90 && c <= 97) 897 new = palette[8 + c - 90]; 898 else if (c & COLOUR_FLAG_256) 899 new = palette[c & ~COLOUR_FLAG_256]; 900 if (new == 0) 901 return (-1); 902 return (new); 903 } 904 905 /* 906 * Is the region large enough to be worth redrawing once later rather than 907 * probably several times now? Currently yes if it is more than 50% of the 908 * pane. 909 */ 910 static int 911 tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx) 912 { 913 return (ctx->orlower - ctx->orupper >= ctx->sy / 2); 914 } 915 916 /* 917 * Return if BCE is needed but the terminal doesn't have it - it'll need to be 918 * emulated. 919 */ 920 static int 921 tty_fake_bce(const struct tty *tty, const struct grid_cell *gc, u_int bg) 922 { 923 if (tty_term_flag(tty->term, TTYC_BCE)) 924 return (0); 925 if (!COLOUR_DEFAULT(bg) || !COLOUR_DEFAULT(gc->bg)) 926 return (1); 927 return (0); 928 } 929 930 /* 931 * Redraw scroll region using data from screen (already updated). Used when 932 * CSR not supported, or window is a pane that doesn't take up the full 933 * width of the terminal. 934 */ 935 static void 936 tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx) 937 { 938 struct client *c = tty->client; 939 u_int i; 940 941 /* 942 * If region is large, schedule a redraw. In most cases this is likely 943 * to be followed by some more scrolling. 944 */ 945 if (tty_large_region(tty, ctx)) { 946 log_debug("%s: %s large redraw", __func__, c->name); 947 ctx->redraw_cb(ctx); 948 return; 949 } 950 951 if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) { 952 for (i = ctx->ocy; i < ctx->sy; i++) 953 tty_draw_pane(tty, ctx, i); 954 } else { 955 for (i = ctx->orupper; i <= ctx->orlower; i++) 956 tty_draw_pane(tty, ctx, i); 957 } 958 } 959 960 /* Is this position visible in the pane? */ 961 static int 962 tty_is_visible(__unused struct tty *tty, const struct tty_ctx *ctx, u_int px, 963 u_int py, u_int nx, u_int ny) 964 { 965 u_int xoff = ctx->rxoff + px, yoff = ctx->ryoff + py; 966 967 if (!ctx->bigger) 968 return (1); 969 970 if (xoff + nx <= ctx->wox || xoff >= ctx->wox + ctx->wsx || 971 yoff + ny <= ctx->woy || yoff >= ctx->woy + ctx->wsy) 972 return (0); 973 return (1); 974 } 975 976 /* Clamp line position to visible part of pane. */ 977 static int 978 tty_clamp_line(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 979 u_int nx, u_int *i, u_int *x, u_int *rx, u_int *ry) 980 { 981 u_int xoff = ctx->rxoff + px; 982 983 if (!tty_is_visible(tty, ctx, px, py, nx, 1)) 984 return (0); 985 *ry = ctx->yoff + py - ctx->woy; 986 987 if (xoff >= ctx->wox && xoff + nx <= ctx->wox + ctx->wsx) { 988 /* All visible. */ 989 *i = 0; 990 *x = ctx->xoff + px - ctx->wox; 991 *rx = nx; 992 } else if (xoff < ctx->wox && xoff + nx > ctx->wox + ctx->wsx) { 993 /* Both left and right not visible. */ 994 *i = ctx->wox; 995 *x = 0; 996 *rx = ctx->wsx; 997 } else if (xoff < ctx->wox) { 998 /* Left not visible. */ 999 *i = ctx->wox - (ctx->xoff + px); 1000 *x = 0; 1001 *rx = nx - *i; 1002 } else { 1003 /* Right not visible. */ 1004 *i = 0; 1005 *x = (ctx->xoff + px) - ctx->wox; 1006 *rx = ctx->wsx - *x; 1007 } 1008 if (*rx > nx) 1009 fatalx("%s: x too big, %u > %u", __func__, *rx, nx); 1010 1011 return (1); 1012 } 1013 1014 /* Clear a line. */ 1015 static void 1016 tty_clear_line(struct tty *tty, const struct grid_cell *defaults, u_int py, 1017 u_int px, u_int nx, u_int bg) 1018 { 1019 struct client *c = tty->client; 1020 1021 log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py); 1022 1023 /* Nothing to clear. */ 1024 if (nx == 0) 1025 return; 1026 1027 /* If genuine BCE is available, can try escape sequences. */ 1028 if (!tty_fake_bce(tty, defaults, bg)) { 1029 /* Off the end of the line, use EL if available. */ 1030 if (px + nx >= tty->sx && tty_term_has(tty->term, TTYC_EL)) { 1031 tty_cursor(tty, px, py); 1032 tty_putcode(tty, TTYC_EL); 1033 return; 1034 } 1035 1036 /* At the start of the line. Use EL1. */ 1037 if (px == 0 && tty_term_has(tty->term, TTYC_EL1)) { 1038 tty_cursor(tty, px + nx - 1, py); 1039 tty_putcode(tty, TTYC_EL1); 1040 return; 1041 } 1042 1043 /* Section of line. Use ECH if possible. */ 1044 if (tty_term_has(tty->term, TTYC_ECH)) { 1045 tty_cursor(tty, px, py); 1046 tty_putcode1(tty, TTYC_ECH, nx); 1047 return; 1048 } 1049 } 1050 1051 /* Couldn't use an escape sequence, use spaces. */ 1052 tty_cursor(tty, px, py); 1053 tty_repeat_space(tty, nx); 1054 } 1055 1056 /* Clear a line, adjusting to visible part of pane. */ 1057 static void 1058 tty_clear_pane_line(struct tty *tty, const struct tty_ctx *ctx, u_int py, 1059 u_int px, u_int nx, u_int bg) 1060 { 1061 struct client *c = tty->client; 1062 u_int i, x, rx, ry; 1063 1064 log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py); 1065 1066 if (tty_clamp_line(tty, ctx, px, py, nx, &i, &x, &rx, &ry)) 1067 tty_clear_line(tty, &ctx->defaults, ry, x, rx, bg); 1068 } 1069 1070 /* Clamp area position to visible part of pane. */ 1071 static int 1072 tty_clamp_area(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, 1073 u_int nx, u_int ny, u_int *i, u_int *j, u_int *x, u_int *y, u_int *rx, 1074 u_int *ry) 1075 { 1076 u_int xoff = ctx->rxoff + px, yoff = ctx->ryoff + py; 1077 1078 if (!tty_is_visible(tty, ctx, px, py, nx, ny)) 1079 return (0); 1080 1081 if (xoff >= ctx->wox && xoff + nx <= ctx->wox + ctx->wsx) { 1082 /* All visible. */ 1083 *i = 0; 1084 *x = ctx->xoff + px - ctx->wox; 1085 *rx = nx; 1086 } else if (xoff < ctx->wox && xoff + nx > ctx->wox + ctx->wsx) { 1087 /* Both left and right not visible. */ 1088 *i = ctx->wox; 1089 *x = 0; 1090 *rx = ctx->wsx; 1091 } else if (xoff < ctx->wox) { 1092 /* Left not visible. */ 1093 *i = ctx->wox - (ctx->xoff + px); 1094 *x = 0; 1095 *rx = nx - *i; 1096 } else { 1097 /* Right not visible. */ 1098 *i = 0; 1099 *x = (ctx->xoff + px) - ctx->wox; 1100 *rx = ctx->wsx - *x; 1101 } 1102 if (*rx > nx) 1103 fatalx("%s: x too big, %u > %u", __func__, *rx, nx); 1104 1105 if (yoff >= ctx->woy && yoff + ny <= ctx->woy + ctx->wsy) { 1106 /* All visible. */ 1107 *j = 0; 1108 *y = ctx->yoff + py - ctx->woy; 1109 *ry = ny; 1110 } else if (yoff < ctx->woy && yoff + ny > ctx->woy + ctx->wsy) { 1111 /* Both top and bottom not visible. */ 1112 *j = ctx->woy; 1113 *y = 0; 1114 *ry = ctx->wsy; 1115 } else if (yoff < ctx->woy) { 1116 /* Top not visible. */ 1117 *j = ctx->woy - (ctx->yoff + py); 1118 *y = 0; 1119 *ry = ny - *j; 1120 } else { 1121 /* Bottom not visible. */ 1122 *j = 0; 1123 *y = (ctx->yoff + py) - ctx->woy; 1124 *ry = ctx->wsy - *y; 1125 } 1126 if (*ry > ny) 1127 fatalx("%s: y too big, %u > %u", __func__, *ry, ny); 1128 1129 return (1); 1130 } 1131 1132 /* Clear an area, adjusting to visible part of pane. */ 1133 static void 1134 tty_clear_area(struct tty *tty, const struct grid_cell *defaults, u_int py, 1135 u_int ny, u_int px, u_int nx, u_int bg) 1136 { 1137 struct client *c = tty->client; 1138 u_int yy; 1139 char tmp[64]; 1140 1141 log_debug("%s: %s, %u,%u at %u,%u", __func__, c->name, nx, ny, px, py); 1142 1143 /* Nothing to clear. */ 1144 if (nx == 0 || ny == 0) 1145 return; 1146 1147 /* If genuine BCE is available, can try escape sequences. */ 1148 if (!tty_fake_bce(tty, defaults, bg)) { 1149 /* Use ED if clearing off the bottom of the terminal. */ 1150 if (px == 0 && 1151 px + nx >= tty->sx && 1152 py + ny >= tty->sy && 1153 tty_term_has(tty->term, TTYC_ED)) { 1154 tty_cursor(tty, 0, py); 1155 tty_putcode(tty, TTYC_ED); 1156 return; 1157 } 1158 1159 /* 1160 * On VT420 compatible terminals we can use DECFRA if the 1161 * background colour isn't default (because it doesn't work 1162 * after SGR 0). 1163 */ 1164 if ((tty->term->flags & TERM_DECFRA) && !COLOUR_DEFAULT(bg)) { 1165 xsnprintf(tmp, sizeof tmp, "\033[32;%u;%u;%u;%u$x", 1166 py + 1, px + 1, py + ny, px + nx); 1167 tty_puts(tty, tmp); 1168 return; 1169 } 1170 1171 /* Full lines can be scrolled away to clear them. */ 1172 if (px == 0 && 1173 px + nx >= tty->sx && 1174 ny > 2 && 1175 tty_term_has(tty->term, TTYC_CSR) && 1176 tty_term_has(tty->term, TTYC_INDN)) { 1177 tty_region(tty, py, py + ny - 1); 1178 tty_margin_off(tty); 1179 tty_putcode1(tty, TTYC_INDN, ny); 1180 return; 1181 } 1182 1183 /* 1184 * If margins are supported, can just scroll the area off to 1185 * clear it. 1186 */ 1187 if (nx > 2 && 1188 ny > 2 && 1189 tty_term_has(tty->term, TTYC_CSR) && 1190 tty_use_margin(tty) && 1191 tty_term_has(tty->term, TTYC_INDN)) { 1192 tty_region(tty, py, py + ny - 1); 1193 tty_margin(tty, px, px + nx - 1); 1194 tty_putcode1(tty, TTYC_INDN, ny); 1195 return; 1196 } 1197 } 1198 1199 /* Couldn't use an escape sequence, loop over the lines. */ 1200 for (yy = py; yy < py + ny; yy++) 1201 tty_clear_line(tty, defaults, yy, px, nx, bg); 1202 } 1203 1204 /* Clear an area in a pane. */ 1205 static void 1206 tty_clear_pane_area(struct tty *tty, const struct tty_ctx *ctx, u_int py, 1207 u_int ny, u_int px, u_int nx, u_int bg) 1208 { 1209 u_int i, j, x, y, rx, ry; 1210 1211 if (tty_clamp_area(tty, ctx, px, py, nx, ny, &i, &j, &x, &y, &rx, &ry)) 1212 tty_clear_area(tty, &ctx->defaults, y, ry, x, rx, bg); 1213 } 1214 1215 static void 1216 tty_draw_pane(struct tty *tty, const struct tty_ctx *ctx, u_int py) 1217 { 1218 struct screen *s = ctx->s; 1219 u_int nx = ctx->sx, i, x, rx, ry; 1220 1221 log_debug("%s: %s %u %d", __func__, tty->client->name, py, ctx->bigger); 1222 1223 if (!ctx->bigger) { 1224 tty_draw_line(tty, s, 0, py, nx, ctx->xoff, ctx->yoff + py, 1225 &ctx->defaults, ctx->palette); 1226 return; 1227 } 1228 if (tty_clamp_line(tty, ctx, 0, py, nx, &i, &x, &rx, &ry)) { 1229 tty_draw_line(tty, s, i, py, rx, x, ry, &ctx->defaults, 1230 ctx->palette); 1231 } 1232 } 1233 1234 static const struct grid_cell * 1235 tty_check_codeset(struct tty *tty, const struct grid_cell *gc) 1236 { 1237 static struct grid_cell new; 1238 int c; 1239 1240 /* Characters less than 0x7f are always fine, no matter what. */ 1241 if (gc->data.size == 1 && *gc->data.data < 0x7f) 1242 return (gc); 1243 1244 /* UTF-8 terminal and a UTF-8 character - fine. */ 1245 if (tty->client->flags & CLIENT_UTF8) 1246 return (gc); 1247 memcpy(&new, gc, sizeof new); 1248 1249 /* See if this can be mapped to an ACS character. */ 1250 c = tty_acs_reverse_get(tty, gc->data.data, gc->data.size); 1251 if (c != -1) { 1252 utf8_set(&new.data, c); 1253 new.attr |= GRID_ATTR_CHARSET; 1254 return (&new); 1255 } 1256 1257 /* Replace by the right number of underscores. */ 1258 new.data.size = gc->data.width; 1259 if (new.data.size > UTF8_SIZE) 1260 new.data.size = UTF8_SIZE; 1261 memset(new.data.data, '_', new.data.size); 1262 return (&new); 1263 } 1264 1265 static int 1266 tty_check_overlay(struct tty *tty, u_int px, u_int py) 1267 { 1268 struct client *c = tty->client; 1269 1270 if (c->overlay_check == NULL) 1271 return (1); 1272 return (c->overlay_check(c, px, py)); 1273 } 1274 1275 void 1276 tty_draw_line(struct tty *tty, struct screen *s, u_int px, u_int py, u_int nx, 1277 u_int atx, u_int aty, const struct grid_cell *defaults, int *palette) 1278 { 1279 struct grid *gd = s->grid; 1280 struct grid_cell gc, last; 1281 const struct grid_cell *gcp; 1282 struct grid_line *gl; 1283 u_int i, j, ux, sx, width; 1284 int flags, cleared = 0, wrapped = 0; 1285 char buf[512]; 1286 size_t len; 1287 u_int cellsize; 1288 1289 log_debug("%s: px=%u py=%u nx=%u atx=%u aty=%u", __func__, 1290 px, py, nx, atx, aty); 1291 1292 /* 1293 * py is the line in the screen to draw. 1294 * px is the start x and nx is the width to draw. 1295 * atx,aty is the line on the terminal to draw it. 1296 */ 1297 1298 flags = (tty->flags & TTY_NOCURSOR); 1299 tty->flags |= TTY_NOCURSOR; 1300 tty_update_mode(tty, tty->mode, s); 1301 1302 tty_region_off(tty); 1303 tty_margin_off(tty); 1304 1305 /* 1306 * Clamp the width to cellsize - note this is not cellused, because 1307 * there may be empty background cells after it (from BCE). 1308 */ 1309 sx = screen_size_x(s); 1310 if (nx > sx) 1311 nx = sx; 1312 cellsize = grid_get_line(gd, gd->hsize + py)->cellsize; 1313 if (sx > cellsize) 1314 sx = cellsize; 1315 if (sx > tty->sx) 1316 sx = tty->sx; 1317 if (sx > nx) 1318 sx = nx; 1319 ux = 0; 1320 1321 if (py == 0) 1322 gl = NULL; 1323 else 1324 gl = grid_get_line(gd, gd->hsize + py - 1); 1325 if (gl == NULL || 1326 (~gl->flags & GRID_LINE_WRAPPED) || 1327 atx != 0 || 1328 tty->cx < tty->sx || 1329 nx < tty->sx) { 1330 if (nx < tty->sx && 1331 atx == 0 && 1332 px + sx != nx && 1333 tty_term_has(tty->term, TTYC_EL1) && 1334 !tty_fake_bce(tty, defaults, 8)) { 1335 tty_default_attributes(tty, defaults, palette, 8); 1336 tty_cursor(tty, nx - 1, aty); 1337 tty_putcode(tty, TTYC_EL1); 1338 cleared = 1; 1339 } 1340 } else { 1341 log_debug("%s: wrapped line %u", __func__, aty); 1342 wrapped = 1; 1343 } 1344 1345 memcpy(&last, &grid_default_cell, sizeof last); 1346 len = 0; 1347 width = 0; 1348 1349 for (i = 0; i < sx; i++) { 1350 grid_view_get_cell(gd, px + i, py, &gc); 1351 gcp = tty_check_codeset(tty, &gc); 1352 if (len != 0 && 1353 (!tty_check_overlay(tty, atx + ux + width, aty) || 1354 (gcp->attr & GRID_ATTR_CHARSET) || 1355 gcp->flags != last.flags || 1356 gcp->attr != last.attr || 1357 gcp->fg != last.fg || 1358 gcp->bg != last.bg || 1359 gcp->us != last.us || 1360 ux + width + gcp->data.width > nx || 1361 (sizeof buf) - len < gcp->data.size)) { 1362 tty_attributes(tty, &last, defaults, palette); 1363 if (last.flags & GRID_FLAG_CLEARED) { 1364 log_debug("%s: %zu cleared", __func__, len); 1365 tty_clear_line(tty, defaults, aty, atx + ux, 1366 width, last.bg); 1367 } else { 1368 if (!wrapped || atx != 0 || ux != 0) 1369 tty_cursor(tty, atx + ux, aty); 1370 tty_putn(tty, buf, len, width); 1371 } 1372 ux += width; 1373 1374 len = 0; 1375 width = 0; 1376 wrapped = 0; 1377 } 1378 1379 if (gcp->flags & GRID_FLAG_SELECTED) 1380 screen_select_cell(s, &last, gcp); 1381 else 1382 memcpy(&last, gcp, sizeof last); 1383 if (!tty_check_overlay(tty, atx + ux, aty)) { 1384 if (~gcp->flags & GRID_FLAG_PADDING) 1385 ux += gcp->data.width; 1386 } else if (ux + gcp->data.width > nx) { 1387 tty_attributes(tty, &last, defaults, palette); 1388 tty_cursor(tty, atx + ux, aty); 1389 for (j = 0; j < gcp->data.width; j++) { 1390 if (ux + j > nx) 1391 break; 1392 tty_putc(tty, ' '); 1393 ux++; 1394 } 1395 } else if (gcp->attr & GRID_ATTR_CHARSET) { 1396 tty_attributes(tty, &last, defaults, palette); 1397 tty_cursor(tty, atx + ux, aty); 1398 for (j = 0; j < gcp->data.size; j++) 1399 tty_putc(tty, gcp->data.data[j]); 1400 ux += gcp->data.width; 1401 } else if (~gcp->flags & GRID_FLAG_PADDING) { 1402 memcpy(buf + len, gcp->data.data, gcp->data.size); 1403 len += gcp->data.size; 1404 width += gcp->data.width; 1405 } 1406 } 1407 if (len != 0 && ((~last.flags & GRID_FLAG_CLEARED) || last.bg != 8)) { 1408 tty_attributes(tty, &last, defaults, palette); 1409 if (last.flags & GRID_FLAG_CLEARED) { 1410 log_debug("%s: %zu cleared (end)", __func__, len); 1411 tty_clear_line(tty, defaults, aty, atx + ux, width, 1412 last.bg); 1413 } else { 1414 if (!wrapped || atx != 0 || ux != 0) 1415 tty_cursor(tty, atx + ux, aty); 1416 tty_putn(tty, buf, len, width); 1417 } 1418 ux += width; 1419 } 1420 1421 if (!cleared && ux < nx) { 1422 log_debug("%s: %u to end of line (%zu cleared)", __func__, 1423 nx - ux, len); 1424 tty_default_attributes(tty, defaults, palette, 8); 1425 tty_clear_line(tty, defaults, aty, atx + ux, nx - ux, 8); 1426 } 1427 1428 tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags; 1429 tty_update_mode(tty, tty->mode, s); 1430 } 1431 1432 void 1433 tty_sync_start(struct tty *tty) 1434 { 1435 if (tty->flags & TTY_BLOCK) 1436 return; 1437 if (tty->flags & TTY_SYNCING) 1438 return; 1439 tty->flags |= TTY_SYNCING; 1440 1441 if (tty_term_has(tty->term, TTYC_SYNC)) { 1442 log_debug("%s sync start", tty->client->name); 1443 tty_putcode1(tty, TTYC_SYNC, 1); 1444 } 1445 } 1446 1447 void 1448 tty_sync_end(struct tty *tty) 1449 { 1450 if (tty->flags & TTY_BLOCK) 1451 return; 1452 if (~tty->flags & TTY_SYNCING) 1453 return; 1454 tty->flags &= ~TTY_SYNCING; 1455 1456 if (tty_term_has(tty->term, TTYC_SYNC)) { 1457 log_debug("%s sync end", tty->client->name); 1458 tty_putcode1(tty, TTYC_SYNC, 2); 1459 } 1460 } 1461 1462 static int 1463 tty_client_ready(struct client *c) 1464 { 1465 if (c->session == NULL || c->tty.term == NULL) 1466 return (0); 1467 if (c->flags & (CLIENT_REDRAWWINDOW|CLIENT_SUSPENDED)) 1468 return (0); 1469 if (c->tty.flags & TTY_FREEZE) 1470 return (0); 1471 return (1); 1472 } 1473 1474 void 1475 tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *), 1476 struct tty_ctx *ctx) 1477 { 1478 struct client *c; 1479 int state; 1480 1481 if (ctx->set_client_cb == NULL) 1482 return; 1483 TAILQ_FOREACH(c, &clients, entry) { 1484 if (!tty_client_ready(c)) 1485 continue; 1486 state = ctx->set_client_cb(ctx, c); 1487 if (state == -1) 1488 break; 1489 if (state == 0) 1490 continue; 1491 cmdfn(&c->tty, ctx); 1492 } 1493 } 1494 1495 void 1496 tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx) 1497 { 1498 if (ctx->bigger || 1499 !tty_full_width(tty, ctx) || 1500 tty_fake_bce(tty, &ctx->defaults, ctx->bg) || 1501 (!tty_term_has(tty->term, TTYC_ICH) && 1502 !tty_term_has(tty->term, TTYC_ICH1))) { 1503 tty_draw_pane(tty, ctx, ctx->ocy); 1504 return; 1505 } 1506 1507 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1508 1509 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1510 1511 tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num); 1512 } 1513 1514 void 1515 tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx) 1516 { 1517 if (ctx->bigger || 1518 !tty_full_width(tty, ctx) || 1519 tty_fake_bce(tty, &ctx->defaults, ctx->bg) || 1520 (!tty_term_has(tty->term, TTYC_DCH) && 1521 !tty_term_has(tty->term, TTYC_DCH1))) { 1522 tty_draw_pane(tty, ctx, ctx->ocy); 1523 return; 1524 } 1525 1526 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1527 1528 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1529 1530 tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num); 1531 } 1532 1533 void 1534 tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx) 1535 { 1536 if (ctx->bigger) { 1537 tty_draw_pane(tty, ctx, ctx->ocy); 1538 return; 1539 } 1540 1541 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1542 1543 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1544 1545 if (tty_term_has(tty->term, TTYC_ECH) && 1546 !tty_fake_bce(tty, &ctx->defaults, 8)) 1547 tty_putcode1(tty, TTYC_ECH, ctx->num); 1548 else 1549 tty_repeat_space(tty, ctx->num); 1550 } 1551 1552 void 1553 tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx) 1554 { 1555 if (ctx->bigger || 1556 !tty_full_width(tty, ctx) || 1557 tty_fake_bce(tty, &ctx->defaults, ctx->bg) || 1558 !tty_term_has(tty->term, TTYC_CSR) || 1559 !tty_term_has(tty->term, TTYC_IL1) || 1560 ctx->sx == 1 || 1561 ctx->sy == 1) { 1562 tty_redraw_region(tty, ctx); 1563 return; 1564 } 1565 1566 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1567 1568 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1569 tty_margin_off(tty); 1570 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1571 1572 tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num); 1573 tty->cx = tty->cy = UINT_MAX; 1574 } 1575 1576 void 1577 tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx) 1578 { 1579 if (ctx->bigger || 1580 !tty_full_width(tty, ctx) || 1581 tty_fake_bce(tty, &ctx->defaults, ctx->bg) || 1582 !tty_term_has(tty->term, TTYC_CSR) || 1583 !tty_term_has(tty->term, TTYC_DL1) || 1584 ctx->sx == 1 || 1585 ctx->sy == 1) { 1586 tty_redraw_region(tty, ctx); 1587 return; 1588 } 1589 1590 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1591 1592 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1593 tty_margin_off(tty); 1594 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1595 1596 tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num); 1597 tty->cx = tty->cy = UINT_MAX; 1598 } 1599 1600 void 1601 tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx) 1602 { 1603 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1604 1605 tty_clear_pane_line(tty, ctx, ctx->ocy, 0, ctx->sx, ctx->bg); 1606 } 1607 1608 void 1609 tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx) 1610 { 1611 u_int nx = ctx->sx - ctx->ocx; 1612 1613 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1614 1615 tty_clear_pane_line(tty, ctx, ctx->ocy, ctx->ocx, nx, ctx->bg); 1616 } 1617 1618 void 1619 tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx) 1620 { 1621 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1622 1623 tty_clear_pane_line(tty, ctx, ctx->ocy, 0, ctx->ocx + 1, ctx->bg); 1624 } 1625 1626 void 1627 tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx) 1628 { 1629 if (ctx->ocy != ctx->orupper) 1630 return; 1631 1632 if (ctx->bigger || 1633 (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) || 1634 tty_fake_bce(tty, &ctx->defaults, 8) || 1635 !tty_term_has(tty->term, TTYC_CSR) || 1636 (!tty_term_has(tty->term, TTYC_RI) && 1637 !tty_term_has(tty->term, TTYC_RIN)) || 1638 ctx->sx == 1 || 1639 ctx->sy == 1) { 1640 tty_redraw_region(tty, ctx); 1641 return; 1642 } 1643 1644 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1645 1646 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1647 tty_margin_pane(tty, ctx); 1648 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper); 1649 1650 if (tty_term_has(tty->term, TTYC_RI)) 1651 tty_putcode(tty, TTYC_RI); 1652 else 1653 tty_putcode1(tty, TTYC_RIN, 1); 1654 } 1655 1656 void 1657 tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx) 1658 { 1659 if (ctx->ocy != ctx->orlower) 1660 return; 1661 1662 if (ctx->bigger || 1663 (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) || 1664 tty_fake_bce(tty, &ctx->defaults, 8) || 1665 !tty_term_has(tty->term, TTYC_CSR) || 1666 ctx->sx == 1 || 1667 ctx->sy == 1) { 1668 tty_redraw_region(tty, ctx); 1669 return; 1670 } 1671 1672 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1673 1674 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1675 tty_margin_pane(tty, ctx); 1676 1677 /* 1678 * If we want to wrap a pane while using margins, the cursor needs to 1679 * be exactly on the right of the region. If the cursor is entirely off 1680 * the edge - move it back to the right. Some terminals are funny about 1681 * this and insert extra spaces, so only use the right if margins are 1682 * enabled. 1683 */ 1684 if (ctx->xoff + ctx->ocx > tty->rright) { 1685 if (!tty_use_margin(tty)) 1686 tty_cursor(tty, 0, ctx->yoff + ctx->ocy); 1687 else 1688 tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy); 1689 } else 1690 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy); 1691 1692 tty_putc(tty, '\n'); 1693 } 1694 1695 void 1696 tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx) 1697 { 1698 u_int i; 1699 1700 if (ctx->bigger || 1701 (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) || 1702 tty_fake_bce(tty, &ctx->defaults, 8) || 1703 !tty_term_has(tty->term, TTYC_CSR) || 1704 ctx->sx == 1 || 1705 ctx->sy == 1) { 1706 tty_redraw_region(tty, ctx); 1707 return; 1708 } 1709 1710 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1711 1712 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1713 tty_margin_pane(tty, ctx); 1714 1715 if (ctx->num == 1 || !tty_term_has(tty->term, TTYC_INDN)) { 1716 if (!tty_use_margin(tty)) 1717 tty_cursor(tty, 0, tty->rlower); 1718 else 1719 tty_cursor(tty, tty->rright, tty->rlower); 1720 for (i = 0; i < ctx->num; i++) 1721 tty_putc(tty, '\n'); 1722 } else { 1723 if (tty->cy == UINT_MAX) 1724 tty_cursor(tty, 0, 0); 1725 else 1726 tty_cursor(tty, 0, tty->cy); 1727 tty_putcode1(tty, TTYC_INDN, ctx->num); 1728 } 1729 } 1730 1731 void 1732 tty_cmd_scrolldown(struct tty *tty, const struct tty_ctx *ctx) 1733 { 1734 u_int i; 1735 1736 if (ctx->bigger || 1737 (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) || 1738 tty_fake_bce(tty, &ctx->defaults, 8) || 1739 !tty_term_has(tty->term, TTYC_CSR) || 1740 (!tty_term_has(tty->term, TTYC_RI) && 1741 !tty_term_has(tty->term, TTYC_RIN)) || 1742 ctx->sx == 1 || 1743 ctx->sy == 1) { 1744 tty_redraw_region(tty, ctx); 1745 return; 1746 } 1747 1748 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1749 1750 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1751 tty_margin_pane(tty, ctx); 1752 tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper); 1753 1754 if (tty_term_has(tty->term, TTYC_RIN)) 1755 tty_putcode1(tty, TTYC_RIN, ctx->num); 1756 else { 1757 for (i = 0; i < ctx->num; i++) 1758 tty_putcode(tty, TTYC_RI); 1759 } 1760 } 1761 1762 void 1763 tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx) 1764 { 1765 u_int px, py, nx, ny; 1766 1767 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1768 1769 tty_region_pane(tty, ctx, 0, ctx->sy - 1); 1770 tty_margin_off(tty); 1771 1772 px = 0; 1773 nx = ctx->sx; 1774 py = ctx->ocy + 1; 1775 ny = ctx->sy - ctx->ocy - 1; 1776 1777 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1778 1779 px = ctx->ocx; 1780 nx = ctx->sx - ctx->ocx; 1781 py = ctx->ocy; 1782 1783 tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg); 1784 } 1785 1786 void 1787 tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx) 1788 { 1789 u_int px, py, nx, ny; 1790 1791 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1792 1793 tty_region_pane(tty, ctx, 0, ctx->sy - 1); 1794 tty_margin_off(tty); 1795 1796 px = 0; 1797 nx = ctx->sx; 1798 py = 0; 1799 ny = ctx->ocy; 1800 1801 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1802 1803 px = 0; 1804 nx = ctx->ocx + 1; 1805 py = ctx->ocy; 1806 1807 tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg); 1808 } 1809 1810 void 1811 tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx) 1812 { 1813 u_int px, py, nx, ny; 1814 1815 tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg); 1816 1817 tty_region_pane(tty, ctx, 0, ctx->sy - 1); 1818 tty_margin_off(tty); 1819 1820 px = 0; 1821 nx = ctx->sx; 1822 py = 0; 1823 ny = ctx->sy; 1824 1825 tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg); 1826 } 1827 1828 void 1829 tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx) 1830 { 1831 u_int i, j; 1832 1833 if (ctx->bigger) { 1834 ctx->redraw_cb(ctx); 1835 return; 1836 } 1837 1838 tty_attributes(tty, &grid_default_cell, &ctx->defaults, ctx->palette); 1839 1840 tty_region_pane(tty, ctx, 0, ctx->sy - 1); 1841 tty_margin_off(tty); 1842 1843 for (j = 0; j < ctx->sy; j++) { 1844 tty_cursor_pane(tty, ctx, 0, j); 1845 for (i = 0; i < ctx->sx; i++) 1846 tty_putc(tty, 'E'); 1847 } 1848 } 1849 1850 void 1851 tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx) 1852 { 1853 if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, 1, 1)) 1854 return; 1855 1856 if (ctx->xoff + ctx->ocx - ctx->wox > tty->sx - 1 && 1857 ctx->ocy == ctx->orlower && 1858 tty_full_width(tty, ctx)) 1859 tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower); 1860 1861 tty_margin_off(tty); 1862 tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy); 1863 1864 tty_cell(tty, ctx->cell, &ctx->defaults, ctx->palette); 1865 } 1866 1867 void 1868 tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx) 1869 { 1870 if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, ctx->num, 1)) 1871 return; 1872 1873 if (ctx->bigger && 1874 (ctx->xoff + ctx->ocx < ctx->wox || 1875 ctx->xoff + ctx->ocx + ctx->num > ctx->wox + ctx->wsx)) { 1876 if (!ctx->wrapped || 1877 !tty_full_width(tty, ctx) || 1878 (tty->term->flags & TERM_NOAM) || 1879 ctx->xoff + ctx->ocx != 0 || 1880 ctx->yoff + ctx->ocy != tty->cy + 1 || 1881 tty->cx < tty->sx || 1882 tty->cy == tty->rlower) 1883 tty_draw_pane(tty, ctx, ctx->ocy); 1884 else 1885 ctx->redraw_cb(ctx); 1886 return; 1887 } 1888 1889 tty_margin_off(tty); 1890 tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy); 1891 1892 tty_attributes(tty, ctx->cell, &ctx->defaults, ctx->palette); 1893 tty_putn(tty, ctx->ptr, ctx->num, ctx->num); 1894 } 1895 1896 void 1897 tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx) 1898 { 1899 tty_set_selection(tty, ctx->ptr, ctx->num); 1900 } 1901 1902 void 1903 tty_set_selection(struct tty *tty, const char *buf, size_t len) 1904 { 1905 char *encoded; 1906 size_t size; 1907 1908 if (~tty->flags & TTY_STARTED) 1909 return; 1910 if (!tty_term_has(tty->term, TTYC_MS)) 1911 return; 1912 1913 size = 4 * ((len + 2) / 3) + 1; /* storage for base64 */ 1914 encoded = xmalloc(size); 1915 1916 b64_ntop(buf, len, encoded, size); 1917 tty_putcode_ptr2(tty, TTYC_MS, "", encoded); 1918 1919 free(encoded); 1920 } 1921 1922 void 1923 tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx) 1924 { 1925 tty_add(tty, ctx->ptr, ctx->num); 1926 tty_invalidate(tty); 1927 } 1928 1929 void 1930 tty_cmd_syncstart(struct tty *tty, __unused const struct tty_ctx *ctx) 1931 { 1932 tty_sync_start(tty); 1933 } 1934 1935 void 1936 tty_cell(struct tty *tty, const struct grid_cell *gc, 1937 const struct grid_cell *defaults, int *palette) 1938 { 1939 const struct grid_cell *gcp; 1940 1941 /* Skip last character if terminal is stupid. */ 1942 if ((tty->term->flags & TERM_NOAM) && 1943 tty->cy == tty->sy - 1 && 1944 tty->cx == tty->sx - 1) 1945 return; 1946 1947 /* If this is a padding character, do nothing. */ 1948 if (gc->flags & GRID_FLAG_PADDING) 1949 return; 1950 1951 /* Check the output codeset and apply attributes. */ 1952 gcp = tty_check_codeset(tty, gc); 1953 tty_attributes(tty, gcp, defaults, palette); 1954 1955 /* If it is a single character, write with putc to handle ACS. */ 1956 if (gcp->data.size == 1) { 1957 tty_attributes(tty, gcp, defaults, palette); 1958 if (*gcp->data.data < 0x20 || *gcp->data.data == 0x7f) 1959 return; 1960 tty_putc(tty, *gcp->data.data); 1961 return; 1962 } 1963 1964 /* Write the data. */ 1965 tty_putn(tty, gcp->data.data, gcp->data.size, gcp->data.width); 1966 } 1967 1968 void 1969 tty_reset(struct tty *tty) 1970 { 1971 struct grid_cell *gc = &tty->cell; 1972 1973 if (!grid_cells_equal(gc, &grid_default_cell)) { 1974 if ((gc->attr & GRID_ATTR_CHARSET) && tty_acs_needed(tty)) 1975 tty_putcode(tty, TTYC_RMACS); 1976 tty_putcode(tty, TTYC_SGR0); 1977 memcpy(gc, &grid_default_cell, sizeof *gc); 1978 } 1979 memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell); 1980 } 1981 1982 static void 1983 tty_invalidate(struct tty *tty) 1984 { 1985 memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell); 1986 memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell); 1987 1988 tty->cx = tty->cy = UINT_MAX; 1989 tty->rupper = tty->rleft = UINT_MAX; 1990 tty->rlower = tty->rright = UINT_MAX; 1991 1992 if (tty->flags & TTY_STARTED) { 1993 if (tty_use_margin(tty)) 1994 tty_putcode(tty, TTYC_ENMG); 1995 tty_putcode(tty, TTYC_SGR0); 1996 1997 tty->mode = ALL_MODES; 1998 tty_update_mode(tty, MODE_CURSOR, NULL); 1999 2000 tty_cursor(tty, 0, 0); 2001 tty_region_off(tty); 2002 tty_margin_off(tty); 2003 } else 2004 tty->mode = MODE_CURSOR; 2005 } 2006 2007 /* Turn off margin. */ 2008 void 2009 tty_region_off(struct tty *tty) 2010 { 2011 tty_region(tty, 0, tty->sy - 1); 2012 } 2013 2014 /* Set region inside pane. */ 2015 static void 2016 tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper, 2017 u_int rlower) 2018 { 2019 tty_region(tty, ctx->yoff + rupper - ctx->woy, 2020 ctx->yoff + rlower - ctx->woy); 2021 } 2022 2023 /* Set region at absolute position. */ 2024 static void 2025 tty_region(struct tty *tty, u_int rupper, u_int rlower) 2026 { 2027 if (tty->rlower == rlower && tty->rupper == rupper) 2028 return; 2029 if (!tty_term_has(tty->term, TTYC_CSR)) 2030 return; 2031 2032 tty->rupper = rupper; 2033 tty->rlower = rlower; 2034 2035 /* 2036 * Some terminals (such as PuTTY) do not correctly reset the cursor to 2037 * 0,0 if it is beyond the last column (they do not reset their wrap 2038 * flag so further output causes a line feed). As a workaround, do an 2039 * explicit move to 0 first. 2040 */ 2041 if (tty->cx >= tty->sx) { 2042 if (tty->cy == UINT_MAX) 2043 tty_cursor(tty, 0, 0); 2044 else 2045 tty_cursor(tty, 0, tty->cy); 2046 } 2047 2048 tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower); 2049 tty->cx = tty->cy = UINT_MAX; 2050 } 2051 2052 /* Turn off margin. */ 2053 void 2054 tty_margin_off(struct tty *tty) 2055 { 2056 tty_margin(tty, 0, tty->sx - 1); 2057 } 2058 2059 /* Set margin inside pane. */ 2060 static void 2061 tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx) 2062 { 2063 tty_margin(tty, ctx->xoff - ctx->wox, 2064 ctx->xoff + ctx->sx - 1 - ctx->wox); 2065 } 2066 2067 /* Set margin at absolute position. */ 2068 static void 2069 tty_margin(struct tty *tty, u_int rleft, u_int rright) 2070 { 2071 if (!tty_use_margin(tty)) 2072 return; 2073 if (tty->rleft == rleft && tty->rright == rright) 2074 return; 2075 2076 tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower); 2077 2078 tty->rleft = rleft; 2079 tty->rright = rright; 2080 2081 if (rleft == 0 && rright == tty->sx - 1) 2082 tty_putcode(tty, TTYC_CLMG); 2083 else 2084 tty_putcode2(tty, TTYC_CMG, rleft, rright); 2085 tty->cx = tty->cy = UINT_MAX; 2086 } 2087 2088 /* 2089 * Move the cursor, unless it would wrap itself when the next character is 2090 * printed. 2091 */ 2092 static void 2093 tty_cursor_pane_unless_wrap(struct tty *tty, const struct tty_ctx *ctx, 2094 u_int cx, u_int cy) 2095 { 2096 if (!ctx->wrapped || 2097 !tty_full_width(tty, ctx) || 2098 (tty->term->flags & TERM_NOAM) || 2099 ctx->xoff + cx != 0 || 2100 ctx->yoff + cy != tty->cy + 1 || 2101 tty->cx < tty->sx || 2102 tty->cy == tty->rlower) 2103 tty_cursor_pane(tty, ctx, cx, cy); 2104 else 2105 log_debug("%s: will wrap at %u,%u", __func__, tty->cx, tty->cy); 2106 } 2107 2108 /* Move cursor inside pane. */ 2109 static void 2110 tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy) 2111 { 2112 tty_cursor(tty, ctx->xoff + cx - ctx->wox, ctx->yoff + cy - ctx->woy); 2113 } 2114 2115 /* Move cursor to absolute position. */ 2116 void 2117 tty_cursor(struct tty *tty, u_int cx, u_int cy) 2118 { 2119 struct tty_term *term = tty->term; 2120 u_int thisx, thisy; 2121 int change; 2122 2123 if (tty->flags & TTY_BLOCK) 2124 return; 2125 2126 if (cx > tty->sx - 1) 2127 cx = tty->sx - 1; 2128 2129 thisx = tty->cx; 2130 thisy = tty->cy; 2131 2132 /* No change. */ 2133 if (cx == thisx && cy == thisy) 2134 return; 2135 2136 /* Very end of the line, just use absolute movement. */ 2137 if (thisx > tty->sx - 1) 2138 goto absolute; 2139 2140 /* Move to home position (0, 0). */ 2141 if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) { 2142 tty_putcode(tty, TTYC_HOME); 2143 goto out; 2144 } 2145 2146 /* Zero on the next line. */ 2147 if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower && 2148 (!tty_use_margin(tty) || tty->rleft == 0)) { 2149 tty_putc(tty, '\r'); 2150 tty_putc(tty, '\n'); 2151 goto out; 2152 } 2153 2154 /* Moving column or row. */ 2155 if (cy == thisy) { 2156 /* 2157 * Moving column only, row staying the same. 2158 */ 2159 2160 /* To left edge. */ 2161 if (cx == 0 && (!tty_use_margin(tty) || tty->rleft == 0)) { 2162 tty_putc(tty, '\r'); 2163 goto out; 2164 } 2165 2166 /* One to the left. */ 2167 if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) { 2168 tty_putcode(tty, TTYC_CUB1); 2169 goto out; 2170 } 2171 2172 /* One to the right. */ 2173 if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) { 2174 tty_putcode(tty, TTYC_CUF1); 2175 goto out; 2176 } 2177 2178 /* Calculate difference. */ 2179 change = thisx - cx; /* +ve left, -ve right */ 2180 2181 /* 2182 * Use HPA if change is larger than absolute, otherwise move 2183 * the cursor with CUB/CUF. 2184 */ 2185 if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) { 2186 tty_putcode1(tty, TTYC_HPA, cx); 2187 goto out; 2188 } else if (change > 0 && 2189 tty_term_has(term, TTYC_CUB) && 2190 !tty_use_margin(tty)) { 2191 if (change == 2 && tty_term_has(term, TTYC_CUB1)) { 2192 tty_putcode(tty, TTYC_CUB1); 2193 tty_putcode(tty, TTYC_CUB1); 2194 goto out; 2195 } 2196 tty_putcode1(tty, TTYC_CUB, change); 2197 goto out; 2198 } else if (change < 0 && 2199 tty_term_has(term, TTYC_CUF) && 2200 !tty_use_margin(tty)) { 2201 tty_putcode1(tty, TTYC_CUF, -change); 2202 goto out; 2203 } 2204 } else if (cx == thisx) { 2205 /* 2206 * Moving row only, column staying the same. 2207 */ 2208 2209 /* One above. */ 2210 if (thisy != tty->rupper && 2211 cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) { 2212 tty_putcode(tty, TTYC_CUU1); 2213 goto out; 2214 } 2215 2216 /* One below. */ 2217 if (thisy != tty->rlower && 2218 cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) { 2219 tty_putcode(tty, TTYC_CUD1); 2220 goto out; 2221 } 2222 2223 /* Calculate difference. */ 2224 change = thisy - cy; /* +ve up, -ve down */ 2225 2226 /* 2227 * Try to use VPA if change is larger than absolute or if this 2228 * change would cross the scroll region, otherwise use CUU/CUD. 2229 */ 2230 if ((u_int) abs(change) > cy || 2231 (change < 0 && cy - change > tty->rlower) || 2232 (change > 0 && cy - change < tty->rupper)) { 2233 if (tty_term_has(term, TTYC_VPA)) { 2234 tty_putcode1(tty, TTYC_VPA, cy); 2235 goto out; 2236 } 2237 } else if (change > 0 && tty_term_has(term, TTYC_CUU)) { 2238 tty_putcode1(tty, TTYC_CUU, change); 2239 goto out; 2240 } else if (change < 0 && tty_term_has(term, TTYC_CUD)) { 2241 tty_putcode1(tty, TTYC_CUD, -change); 2242 goto out; 2243 } 2244 } 2245 2246 absolute: 2247 /* Absolute movement. */ 2248 tty_putcode2(tty, TTYC_CUP, cy, cx); 2249 2250 out: 2251 tty->cx = cx; 2252 tty->cy = cy; 2253 } 2254 2255 void 2256 tty_attributes(struct tty *tty, const struct grid_cell *gc, 2257 const struct grid_cell *defaults, int *palette) 2258 { 2259 struct grid_cell *tc = &tty->cell, gc2; 2260 int changed; 2261 2262 /* Copy cell and update default colours. */ 2263 memcpy(&gc2, gc, sizeof gc2); 2264 if (gc2.fg == 8) 2265 gc2.fg = defaults->fg; 2266 if (gc2.bg == 8) 2267 gc2.bg = defaults->bg; 2268 2269 /* Ignore cell if it is the same as the last one. */ 2270 if (gc2.attr == tty->last_cell.attr && 2271 gc2.fg == tty->last_cell.fg && 2272 gc2.bg == tty->last_cell.bg && 2273 gc2.us == tty->last_cell.us) 2274 return; 2275 2276 /* 2277 * If no setab, try to use the reverse attribute as a best-effort for a 2278 * non-default background. This is a bit of a hack but it doesn't do 2279 * any serious harm and makes a couple of applications happier. 2280 */ 2281 if (!tty_term_has(tty->term, TTYC_SETAB)) { 2282 if (gc2.attr & GRID_ATTR_REVERSE) { 2283 if (gc2.fg != 7 && !COLOUR_DEFAULT(gc2.fg)) 2284 gc2.attr &= ~GRID_ATTR_REVERSE; 2285 } else { 2286 if (gc2.bg != 0 && !COLOUR_DEFAULT(gc2.bg)) 2287 gc2.attr |= GRID_ATTR_REVERSE; 2288 } 2289 } 2290 2291 /* Fix up the colours if necessary. */ 2292 tty_check_fg(tty, palette, &gc2); 2293 tty_check_bg(tty, palette, &gc2); 2294 tty_check_us(tty, palette, &gc2); 2295 2296 /* 2297 * If any bits are being cleared or the underline colour is now default, 2298 * reset everything. 2299 */ 2300 if ((tc->attr & ~gc2.attr) || (tc->us != gc2.us && gc2.us == 0)) 2301 tty_reset(tty); 2302 2303 /* 2304 * Set the colours. This may call tty_reset() (so it comes next) and 2305 * may add to (NOT remove) the desired attributes. 2306 */ 2307 tty_colours(tty, &gc2); 2308 2309 /* Filter out attribute bits already set. */ 2310 changed = gc2.attr & ~tc->attr; 2311 tc->attr = gc2.attr; 2312 2313 /* Set the attributes. */ 2314 if (changed & GRID_ATTR_BRIGHT) 2315 tty_putcode(tty, TTYC_BOLD); 2316 if (changed & GRID_ATTR_DIM) 2317 tty_putcode(tty, TTYC_DIM); 2318 if (changed & GRID_ATTR_ITALICS) 2319 tty_set_italics(tty); 2320 if (changed & GRID_ATTR_ALL_UNDERSCORE) { 2321 if ((changed & GRID_ATTR_UNDERSCORE) || 2322 !tty_term_has(tty->term, TTYC_SMULX)) 2323 tty_putcode(tty, TTYC_SMUL); 2324 else if (changed & GRID_ATTR_UNDERSCORE_2) 2325 tty_putcode1(tty, TTYC_SMULX, 2); 2326 else if (changed & GRID_ATTR_UNDERSCORE_3) 2327 tty_putcode1(tty, TTYC_SMULX, 3); 2328 else if (changed & GRID_ATTR_UNDERSCORE_4) 2329 tty_putcode1(tty, TTYC_SMULX, 4); 2330 else if (changed & GRID_ATTR_UNDERSCORE_5) 2331 tty_putcode1(tty, TTYC_SMULX, 5); 2332 } 2333 if (changed & GRID_ATTR_BLINK) 2334 tty_putcode(tty, TTYC_BLINK); 2335 if (changed & GRID_ATTR_REVERSE) { 2336 if (tty_term_has(tty->term, TTYC_REV)) 2337 tty_putcode(tty, TTYC_REV); 2338 else if (tty_term_has(tty->term, TTYC_SMSO)) 2339 tty_putcode(tty, TTYC_SMSO); 2340 } 2341 if (changed & GRID_ATTR_HIDDEN) 2342 tty_putcode(tty, TTYC_INVIS); 2343 if (changed & GRID_ATTR_STRIKETHROUGH) 2344 tty_putcode(tty, TTYC_SMXX); 2345 if (changed & GRID_ATTR_OVERLINE) 2346 tty_putcode(tty, TTYC_SMOL); 2347 if ((changed & GRID_ATTR_CHARSET) && tty_acs_needed(tty)) 2348 tty_putcode(tty, TTYC_SMACS); 2349 2350 memcpy(&tty->last_cell, &gc2, sizeof tty->last_cell); 2351 } 2352 2353 static void 2354 tty_colours(struct tty *tty, const struct grid_cell *gc) 2355 { 2356 struct grid_cell *tc = &tty->cell; 2357 int have_ax; 2358 2359 /* No changes? Nothing is necessary. */ 2360 if (gc->fg == tc->fg && gc->bg == tc->bg && gc->us == tc->us) 2361 return; 2362 2363 /* 2364 * Is either the default colour? This is handled specially because the 2365 * best solution might be to reset both colours to default, in which 2366 * case if only one is default need to fall onward to set the other 2367 * colour. 2368 */ 2369 if (COLOUR_DEFAULT(gc->fg) || COLOUR_DEFAULT(gc->bg)) { 2370 /* 2371 * If don't have AX but do have op, send sgr0 (op can't 2372 * actually be used because it is sometimes the same as sgr0 2373 * and sometimes isn't). This resets both colours to default. 2374 * 2375 * Otherwise, try to set the default colour only as needed. 2376 */ 2377 have_ax = tty_term_flag(tty->term, TTYC_AX); 2378 if (!have_ax && tty_term_has(tty->term, TTYC_OP)) 2379 tty_reset(tty); 2380 else { 2381 if (COLOUR_DEFAULT(gc->fg) && !COLOUR_DEFAULT(tc->fg)) { 2382 if (have_ax) 2383 tty_puts(tty, "\033[39m"); 2384 else if (tc->fg != 7) 2385 tty_putcode1(tty, TTYC_SETAF, 7); 2386 tc->fg = gc->fg; 2387 } 2388 if (COLOUR_DEFAULT(gc->bg) && !COLOUR_DEFAULT(tc->bg)) { 2389 if (have_ax) 2390 tty_puts(tty, "\033[49m"); 2391 else if (tc->bg != 0) 2392 tty_putcode1(tty, TTYC_SETAB, 0); 2393 tc->bg = gc->bg; 2394 } 2395 } 2396 } 2397 2398 /* Set the foreground colour. */ 2399 if (!COLOUR_DEFAULT(gc->fg) && gc->fg != tc->fg) 2400 tty_colours_fg(tty, gc); 2401 2402 /* 2403 * Set the background colour. This must come after the foreground as 2404 * tty_colour_fg() can call tty_reset(). 2405 */ 2406 if (!COLOUR_DEFAULT(gc->bg) && gc->bg != tc->bg) 2407 tty_colours_bg(tty, gc); 2408 2409 /* Set the underscore color. */ 2410 if (gc->us != tc->us) 2411 tty_colours_us(tty, gc); 2412 } 2413 2414 static void 2415 tty_check_fg(struct tty *tty, int *palette, struct grid_cell *gc) 2416 { 2417 u_char r, g, b; 2418 u_int colours; 2419 int c; 2420 2421 /* 2422 * Perform substitution if this pane has a palette. If the bright 2423 * attribute is set, use the bright entry in the palette by changing to 2424 * the aixterm colour. 2425 */ 2426 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2427 c = gc->fg; 2428 if (c < 8 && gc->attr & GRID_ATTR_BRIGHT) 2429 c += 90; 2430 if ((c = tty_get_palette(palette, c)) != -1) 2431 gc->fg = c; 2432 } 2433 2434 /* Is this a 24-bit colour? */ 2435 if (gc->fg & COLOUR_FLAG_RGB) { 2436 /* Not a 24-bit terminal? Translate to 256-colour palette. */ 2437 if (tty->term->flags & TERM_RGBCOLOURS) 2438 return; 2439 colour_split_rgb(gc->fg, &r, &g, &b); 2440 gc->fg = colour_find_rgb(r, g, b); 2441 } 2442 2443 /* How many colours does this terminal have? */ 2444 if (tty->term->flags & TERM_256COLOURS) 2445 colours = 256; 2446 else 2447 colours = tty_term_number(tty->term, TTYC_COLORS); 2448 2449 /* Is this a 256-colour colour? */ 2450 if (gc->fg & COLOUR_FLAG_256) { 2451 /* And not a 256 colour mode? */ 2452 if (colours != 256) { 2453 gc->fg = colour_256to16(gc->fg); 2454 if (gc->fg & 8) { 2455 gc->fg &= 7; 2456 if (colours >= 16) 2457 gc->fg += 90; 2458 } 2459 } 2460 return; 2461 } 2462 2463 /* Is this an aixterm colour? */ 2464 if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) { 2465 gc->fg -= 90; 2466 gc->attr |= GRID_ATTR_BRIGHT; 2467 } 2468 } 2469 2470 static void 2471 tty_check_bg(struct tty *tty, int *palette, struct grid_cell *gc) 2472 { 2473 u_char r, g, b; 2474 u_int colours; 2475 int c; 2476 2477 /* Perform substitution if this pane has a palette. */ 2478 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2479 if ((c = tty_get_palette(palette, gc->bg)) != -1) 2480 gc->bg = c; 2481 } 2482 2483 /* Is this a 24-bit colour? */ 2484 if (gc->bg & COLOUR_FLAG_RGB) { 2485 /* Not a 24-bit terminal? Translate to 256-colour palette. */ 2486 if (tty->term->flags & TERM_RGBCOLOURS) 2487 return; 2488 colour_split_rgb(gc->bg, &r, &g, &b); 2489 gc->bg = colour_find_rgb(r, g, b); 2490 } 2491 2492 /* How many colours does this terminal have? */ 2493 if (tty->term->flags & TERM_256COLOURS) 2494 colours = 256; 2495 else 2496 colours = tty_term_number(tty->term, TTYC_COLORS); 2497 2498 /* Is this a 256-colour colour? */ 2499 if (gc->bg & COLOUR_FLAG_256) { 2500 /* 2501 * And not a 256 colour mode? Translate to 16-colour 2502 * palette. Bold background doesn't exist portably, so just 2503 * discard the bold bit if set. 2504 */ 2505 if (colours != 256) { 2506 gc->bg = colour_256to16(gc->bg); 2507 if (gc->bg & 8) { 2508 gc->bg &= 7; 2509 if (colours >= 16) 2510 gc->bg += 90; 2511 } 2512 } 2513 return; 2514 } 2515 2516 /* Is this an aixterm colour? */ 2517 if (gc->bg >= 90 && gc->bg <= 97 && colours < 16) 2518 gc->bg -= 90; 2519 } 2520 2521 static void 2522 tty_check_us(__unused struct tty *tty, int *palette, struct grid_cell *gc) 2523 { 2524 int c; 2525 2526 /* Perform substitution if this pane has a palette. */ 2527 if (~gc->flags & GRID_FLAG_NOPALETTE) { 2528 if ((c = tty_get_palette(palette, gc->us)) != -1) 2529 gc->us = c; 2530 } 2531 2532 /* Underscore colour is set as RGB so convert a 256 colour to RGB. */ 2533 if (gc->us & COLOUR_FLAG_256) 2534 gc->us = colour_256toRGB (gc->us); 2535 } 2536 2537 static void 2538 tty_colours_fg(struct tty *tty, const struct grid_cell *gc) 2539 { 2540 struct grid_cell *tc = &tty->cell; 2541 char s[32]; 2542 2543 /* Is this a 24-bit or 256-colour colour? */ 2544 if (gc->fg & COLOUR_FLAG_RGB || gc->fg & COLOUR_FLAG_256) { 2545 if (tty_try_colour(tty, gc->fg, "38") == 0) 2546 goto save; 2547 /* Should not get here, already converted in tty_check_fg. */ 2548 return; 2549 } 2550 2551 /* Is this an aixterm bright colour? */ 2552 if (gc->fg >= 90 && gc->fg <= 97) { 2553 if (tty->term->flags & TERM_256COLOURS) { 2554 xsnprintf(s, sizeof s, "\033[%dm", gc->fg); 2555 tty_puts(tty, s); 2556 } else 2557 tty_putcode1(tty, TTYC_SETAF, gc->fg - 90 + 8); 2558 goto save; 2559 } 2560 2561 /* Otherwise set the foreground colour. */ 2562 tty_putcode1(tty, TTYC_SETAF, gc->fg); 2563 2564 save: 2565 /* Save the new values in the terminal current cell. */ 2566 tc->fg = gc->fg; 2567 } 2568 2569 static void 2570 tty_colours_bg(struct tty *tty, const struct grid_cell *gc) 2571 { 2572 struct grid_cell *tc = &tty->cell; 2573 char s[32]; 2574 2575 /* Is this a 24-bit or 256-colour colour? */ 2576 if (gc->bg & COLOUR_FLAG_RGB || gc->bg & COLOUR_FLAG_256) { 2577 if (tty_try_colour(tty, gc->bg, "48") == 0) 2578 goto save; 2579 /* Should not get here, already converted in tty_check_bg. */ 2580 return; 2581 } 2582 2583 /* Is this an aixterm bright colour? */ 2584 if (gc->bg >= 90 && gc->bg <= 97) { 2585 if (tty->term->flags & TERM_256COLOURS) { 2586 xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10); 2587 tty_puts(tty, s); 2588 } else 2589 tty_putcode1(tty, TTYC_SETAB, gc->bg - 90 + 8); 2590 goto save; 2591 } 2592 2593 /* Otherwise set the background colour. */ 2594 tty_putcode1(tty, TTYC_SETAB, gc->bg); 2595 2596 save: 2597 /* Save the new values in the terminal current cell. */ 2598 tc->bg = gc->bg; 2599 } 2600 2601 static void 2602 tty_colours_us(struct tty *tty, const struct grid_cell *gc) 2603 { 2604 struct grid_cell *tc = &tty->cell; 2605 u_int c; 2606 u_char r, g, b; 2607 2608 /* Clear underline colour. */ 2609 if (gc->us == 0) { 2610 tty_putcode(tty, TTYC_OL); 2611 goto save; 2612 } 2613 2614 /* Must be an RGB colour - this should never happen. */ 2615 if (~gc->us & COLOUR_FLAG_RGB) 2616 return; 2617 2618 /* 2619 * Setulc and setal follows the ncurses(3) one argument "direct colour" 2620 * capability format. Calculate the colour value. 2621 */ 2622 colour_split_rgb(gc->us, &r, &g, &b); 2623 c = (65536 * r) + (256 * g) + b; 2624 2625 /* 2626 * Write the colour. Only use setal if the RGB flag is set because the 2627 * non-RGB version may be wrong. 2628 */ 2629 if (tty_term_has(tty->term, TTYC_SETULC)) 2630 tty_putcode1(tty, TTYC_SETULC, c); 2631 else if (tty_term_has(tty->term, TTYC_SETAL) && 2632 tty_term_has(tty->term, TTYC_RGB)) 2633 tty_putcode1(tty, TTYC_SETAL, c); 2634 2635 save: 2636 /* Save the new values in the terminal current cell. */ 2637 tc->us = gc->us; 2638 } 2639 2640 static int 2641 tty_try_colour(struct tty *tty, int colour, const char *type) 2642 { 2643 u_char r, g, b; 2644 2645 if (colour & COLOUR_FLAG_256) { 2646 if (*type == '3' && tty_term_has(tty->term, TTYC_SETAF)) 2647 tty_putcode1(tty, TTYC_SETAF, colour & 0xff); 2648 else if (tty_term_has(tty->term, TTYC_SETAB)) 2649 tty_putcode1(tty, TTYC_SETAB, colour & 0xff); 2650 return (0); 2651 } 2652 2653 if (colour & COLOUR_FLAG_RGB) { 2654 colour_split_rgb(colour & 0xffffff, &r, &g, &b); 2655 if (*type == '3' && tty_term_has(tty->term, TTYC_SETRGBF)) 2656 tty_putcode3(tty, TTYC_SETRGBF, r, g, b); 2657 else if (tty_term_has(tty->term, TTYC_SETRGBB)) 2658 tty_putcode3(tty, TTYC_SETRGBB, r, g, b); 2659 return (0); 2660 } 2661 2662 return (-1); 2663 } 2664 2665 static void 2666 tty_window_default_style(struct grid_cell *gc, struct window_pane *wp) 2667 { 2668 memcpy(gc, &grid_default_cell, sizeof *gc); 2669 gc->fg = wp->fg; 2670 gc->bg = wp->bg; 2671 } 2672 2673 void 2674 tty_default_colours(struct grid_cell *gc, struct window_pane *wp) 2675 { 2676 struct options *oo = wp->options; 2677 2678 memcpy(gc, &grid_default_cell, sizeof *gc); 2679 2680 if (wp->flags & PANE_STYLECHANGED) { 2681 wp->flags &= ~PANE_STYLECHANGED; 2682 2683 tty_window_default_style(&wp->cached_active_gc, wp); 2684 style_add(&wp->cached_active_gc, oo, "window-active-style", 2685 NULL); 2686 tty_window_default_style(&wp->cached_gc, wp); 2687 style_add(&wp->cached_gc, oo, "window-style", NULL); 2688 } 2689 2690 if (gc->fg == 8) { 2691 if (wp == wp->window->active && wp->cached_active_gc.fg != 8) 2692 gc->fg = wp->cached_active_gc.fg; 2693 else 2694 gc->fg = wp->cached_gc.fg; 2695 } 2696 2697 if (gc->bg == 8) { 2698 if (wp == wp->window->active && wp->cached_active_gc.bg != 8) 2699 gc->bg = wp->cached_active_gc.bg; 2700 else 2701 gc->bg = wp->cached_gc.bg; 2702 } 2703 } 2704 2705 static void 2706 tty_default_attributes(struct tty *tty, const struct grid_cell *defaults, 2707 int *palette, u_int bg) 2708 { 2709 struct grid_cell gc; 2710 2711 memcpy(&gc, &grid_default_cell, sizeof gc); 2712 gc.bg = bg; 2713 tty_attributes(tty, &gc, defaults, palette); 2714 } 2715