ite_cc.c revision 1.15.8.1
1 /* $NetBSD: ite_cc.c,v 1.15.8.1 2001/08/03 04:11:17 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Leo Weppelman 5 * Copyright (c) 1994 Christian E. Hopps 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Christian E. Hopps. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/conf.h> 36 #include <sys/proc.h> 37 #include <sys/ioctl.h> 38 #include <sys/tty.h> 39 #include <sys/systm.h> 40 #include <sys/queue.h> 41 #include <sys/termios.h> 42 #include <sys/malloc.h> 43 #include <sys/device.h> 44 #include <dev/cons.h> 45 #include <machine/cpu.h> 46 #include <atari/atari/device.h> 47 #include <atari/dev/itevar.h> 48 #include <atari/dev/iteioctl.h> 49 #include <atari/dev/grfioctl.h> 50 #include <atari/dev/grfabs_reg.h> 51 #include <atari/dev/grfvar.h> 52 #include <atari/dev/font.h> 53 #include <atari/dev/viewioctl.h> 54 #include <atari/dev/viewvar.h> 55 56 #include "grfcc.h" 57 58 /* 59 * This is what ip->priv points to; 60 * it contains local variables for custom-chip ites. 61 */ 62 struct ite_priv { 63 u_char **row_ptr; /* array of pointers into the bitmap */ 64 u_long row_bytes; 65 u_long cursor_opt; 66 u_short *column_offset; /* array of offsets for columns */ 67 u_int row_offset; /* the row offset */ 68 u_short width; /* the bitmap width */ 69 u_short underline; /* where the underline goes */ 70 u_short ft_x; /* the font width */ 71 u_short ft_y; /* the font height */ 72 u_char *font_cell[256];/* the font pointer */ 73 }; 74 typedef struct ite_priv ipriv_t; 75 76 /* 77 * We need the following space to get an ite-console setup before 78 * the VM-system is brought up. We setup for a 1280x960 monitor with 79 * an 8x8 font. 80 */ 81 #define CONS_MAXROW 120 /* Max. number of rows on console */ 82 #define CONS_MAXCOL 160 /* Max. number of columns on console */ 83 static u_short con_columns[CONS_MAXCOL]; 84 static u_char *con_rows[CONS_MAXROW]; 85 static ipriv_t con_ipriv; 86 87 extern font_info font_info_8x8; 88 extern font_info font_info_8x16; 89 90 static void view_init __P((struct ite_softc *)); 91 static void view_deinit __P((struct ite_softc *)); 92 static int itecc_ioctl __P((struct ite_softc *, u_long, caddr_t, int, 93 struct proc *)); 94 static int ite_newsize __P((struct ite_softc *, struct itewinsize *)); 95 static void cursor32 __P((struct ite_softc *, int)); 96 static void putc8 __P((struct ite_softc *, int, int, int, int)); 97 static void clear8 __P((struct ite_softc *, int, int, int, int)); 98 static void scroll8 __P((struct ite_softc *, int, int, int, int)); 99 static void scrollbmap __P((bmap_t *, u_short, u_short, u_short, u_short, 100 short, short)); 101 102 /* 103 * grfcc config stuff 104 */ 105 void grfccattach __P((struct device *, struct device *, void *)); 106 int grfccmatch __P((struct device *, struct cfdata *, void *)); 107 int grfccprint __P((void *, const char *)); 108 109 struct cfattach grfcc_ca = { 110 sizeof(struct grf_softc), grfccmatch, grfccattach 111 }; 112 113 /* 114 * only used in console init. 115 */ 116 static struct cfdata *cfdata_grf = NULL; 117 118 /* 119 * Probe functions we can use: 120 */ 121 #ifdef TT_VIDEO 122 void tt_probe_video __P((MODES *)); 123 #endif /* TT_VIDEO */ 124 #ifdef FALCON_VIDEO 125 void falcon_probe_video __P((MODES *)); 126 #endif /* FALCON_VIDEO */ 127 128 int 129 grfccmatch(pdp, cfp, auxp) 130 struct device *pdp; 131 struct cfdata *cfp; 132 void *auxp; 133 { 134 static int did_consinit = 0; 135 static int must_probe = 1; 136 grf_auxp_t *grf_auxp = auxp; 137 138 if (must_probe) { 139 /* 140 * Check if the layers we depend on exist 141 */ 142 if (!(machineid & (ATARI_TT|ATARI_FALCON))) 143 return (0); 144 #ifdef TT_VIDEO 145 if ((machineid & ATARI_TT) && !grfabs_probe(&tt_probe_video)) 146 return (0); 147 #endif /* TT_VIDEO */ 148 #ifdef FALCON_VIDEO 149 if ((machineid & ATARI_FALCON) 150 && !grfabs_probe(&falcon_probe_video)) 151 return (0); 152 #endif /* FALCON_VIDEO */ 153 154 viewprobe(); 155 must_probe = 0; 156 } 157 158 if (atari_realconfig == 0) { 159 /* 160 * Early console init. Only match first unit. 161 */ 162 if (did_consinit) 163 return(0); 164 if (viewopen(cfp->cf_unit, 0, 0, NULL)) 165 return(0); 166 cfdata_grf = cfp; 167 did_consinit = 1; 168 return (1); 169 } 170 171 /* 172 * Normal config. When we are called directly from the grfbus, 173 * we only match the first unit. The attach function will call us for 174 * the other configured units. 175 */ 176 if (grf_auxp->from_bus_match && (did_consinit > 1)) 177 return (0); 178 179 if (!grf_auxp->from_bus_match && (grf_auxp->unit != cfp->cf_unit)) 180 return (0); 181 182 /* 183 * Final constraint: each grf needs a view.... 184 */ 185 if((cfdata_grf == NULL) || (did_consinit > 1)) { 186 if(viewopen(cfp->cf_unit, 0, 0, NULL)) 187 return(0); 188 } 189 did_consinit = 2; 190 return(1); 191 } 192 193 /* 194 * attach: initialize the grf-structure and try to attach an ite to us. 195 * note : dp is NULL during early console init. 196 */ 197 void 198 grfccattach(pdp, dp, auxp) 199 struct device *pdp, *dp; 200 void *auxp; 201 { 202 static struct grf_softc congrf; 203 static int first_attach = 1; 204 grf_auxp_t *grf_bus_auxp = auxp; 205 grf_auxp_t grf_auxp; 206 struct grf_softc *gp; 207 int maj; 208 209 /* 210 * find our major device number 211 */ 212 for(maj = 0; maj < nchrdev; maj++) 213 if (cdevsw[maj].d_open == grfopen) 214 break; 215 216 /* 217 * Handle exeption case: early console init 218 */ 219 if(dp == NULL) { 220 congrf.g_unit = cfdata_grf->cf_unit; 221 congrf.g_grfdev = makedev(maj, congrf.g_unit); 222 congrf.g_itedev = (dev_t)-1; 223 congrf.g_flags = GF_ALIVE; 224 congrf.g_mode = grf_mode; 225 congrf.g_conpri = grfcc_cnprobe(); 226 congrf.g_viewdev = congrf.g_unit; 227 grfcc_iteinit(&congrf); 228 grf_viewsync(&congrf); 229 230 /* Attach console ite */ 231 atari_config_found(cfdata_grf, NULL, &congrf, grfccprint); 232 return; 233 } 234 235 gp = (struct grf_softc *)dp; 236 gp->g_unit = gp->g_device.dv_unit; 237 grfsp[gp->g_unit] = gp; 238 239 if((cfdata_grf != NULL) && (gp->g_unit == congrf.g_unit)) { 240 /* 241 * We inited earlier just copy the info, take care 242 * not to copy the device struct though. 243 */ 244 bcopy(&congrf.g_display, &gp->g_display, 245 (char *)&gp[1] - (char *)&gp->g_display); 246 } 247 else { 248 gp->g_grfdev = makedev(maj, gp->g_unit); 249 gp->g_itedev = (dev_t)-1; 250 gp->g_flags = GF_ALIVE; 251 gp->g_mode = grf_mode; 252 gp->g_conpri = 0; 253 gp->g_viewdev = gp->g_unit; 254 grfcc_iteinit(gp); 255 grf_viewsync(gp); 256 } 257 258 printf(": width %d height %d", gp->g_display.gd_dwidth, 259 gp->g_display.gd_dheight); 260 if(gp->g_display.gd_colors == 2) 261 printf(" monochrome\n"); 262 else printf(" colors %d\n", gp->g_display.gd_colors); 263 264 /* 265 * try and attach an ite 266 */ 267 config_found(dp, gp, grfccprint); 268 269 /* 270 * If attaching the first unit, go ahead and 'find' the rest of us 271 */ 272 if (first_attach) { 273 first_attach = 0; 274 grf_auxp.from_bus_match = 0; 275 for (grf_auxp.unit=1; grf_auxp.unit < NGRFCC; grf_auxp.unit++) { 276 config_found(pdp, (void*)&grf_auxp, grf_bus_auxp->busprint); 277 } 278 } 279 } 280 281 int 282 grfccprint(auxp, pnp) 283 void *auxp; 284 const char *pnp; 285 { 286 if(pnp) 287 printf("ite at %s", pnp); 288 return(UNCONF); 289 } 290 291 /* 292 * called from grf_cc to return console priority 293 */ 294 int 295 grfcc_cnprobe() 296 { 297 return(CN_INTERNAL); 298 } 299 /* 300 * called from grf_cc to init ite portion of 301 * grf_softc struct 302 */ 303 void 304 grfcc_iteinit(gp) 305 struct grf_softc *gp; 306 { 307 308 gp->g_itecursor = cursor32; 309 gp->g_iteputc = putc8; 310 gp->g_iteclear = clear8; 311 gp->g_itescroll = scroll8; 312 gp->g_iteinit = view_init; 313 gp->g_itedeinit = view_deinit; 314 } 315 316 static void 317 view_deinit(ip) 318 struct ite_softc *ip; 319 { 320 ip->flags &= ~ITE_INITED; 321 } 322 323 static void 324 view_init(ip) 325 register struct ite_softc *ip; 326 { 327 struct itewinsize wsz; 328 ipriv_t *cci; 329 330 if((cci = ip->priv) != NULL) 331 return; 332 333 ip->itexx_ioctl = itecc_ioctl; 334 335 #if defined(KFONT_8X8) 336 ip->font = font_info_8x8; 337 #else 338 ip->font = font_info_8x16; 339 #endif 340 341 /* Find the correct set of rendering routines for this font. */ 342 if(ip->font.width != 8) 343 panic("kernel font size not supported"); 344 345 if(!atari_realconfig) 346 ip->priv = cci = &con_ipriv; 347 else ip->priv = cci = (ipriv_t*)malloc(sizeof(*cci), M_DEVBUF,M_WAITOK); 348 if(cci == NULL) 349 panic("No memory for ite-view"); 350 bzero(cci, sizeof(*cci)); 351 352 cci->cursor_opt = 0; 353 cci->row_ptr = NULL; 354 cci->column_offset = NULL; 355 356 wsz.x = ite_default_x; 357 wsz.y = ite_default_y; 358 wsz.width = ite_default_width; 359 wsz.height = ite_default_height; 360 wsz.depth = ite_default_depth; 361 362 ite_newsize (ip, &wsz); 363 364 /* 365 * Only console will be turned on by default.. 366 */ 367 if(ip->flags & ITE_ISCONS) 368 ip->grf->g_mode(ip->grf, GM_GRFON, NULL, 0, 0); 369 } 370 371 static int 372 ite_newsize(ip, winsz) 373 struct ite_softc *ip; 374 struct itewinsize *winsz; 375 { 376 struct view_size vs; 377 ipriv_t *cci = ip->priv; 378 u_long i, j; 379 int error = 0; 380 view_t *view; 381 382 vs.x = winsz->x; 383 vs.y = winsz->y; 384 vs.width = winsz->width; 385 vs.height = winsz->height; 386 vs.depth = winsz->depth; 387 388 error = viewioctl(ip->grf->g_viewdev, VIOCSSIZE, (caddr_t)&vs, 0, 389 NOPROC); 390 view = viewview(ip->grf->g_viewdev); 391 392 /* 393 * Reinitialize our structs 394 */ 395 ip->cols = view->display.width / ip->font.width; 396 ip->rows = view->display.height / ip->font.height; 397 398 /* 399 * save new values so that future opens use them 400 * this may not be correct when we implement Virtual Consoles 401 */ 402 ite_default_height = view->display.height; 403 ite_default_width = view->display.width; 404 ite_default_x = view->display.x; 405 ite_default_y = view->display.y; 406 ite_default_depth = view->bitmap->depth; 407 408 if(cci->row_ptr && (cci->row_ptr != con_rows)) { 409 free(cci->row_ptr, M_DEVBUF); 410 cci->row_ptr = NULL; 411 } 412 if(cci->column_offset && (cci->column_offset != con_columns)) { 413 free(cci->column_offset, M_DEVBUF); 414 cci->column_offset = NULL; 415 } 416 417 if(!atari_realconfig) { 418 cci->row_ptr = con_rows; 419 cci->column_offset = con_columns; 420 } 421 else { 422 cci->row_ptr = malloc(sizeof(u_char *) * ip->rows,M_DEVBUF,M_NOWAIT); 423 cci->column_offset = malloc(sizeof(u_int)*ip->cols,M_DEVBUF,M_NOWAIT); 424 } 425 426 if(!cci->row_ptr || !cci->column_offset) 427 panic("No memory for ite-view"); 428 429 cci->width = view->bitmap->bytes_per_row << 3; 430 cci->underline = ip->font.baseline + 1; 431 cci->row_offset = view->bitmap->bytes_per_row; 432 cci->ft_x = ip->font.width; 433 cci->ft_y = ip->font.height; 434 cci->row_bytes = cci->row_offset * cci->ft_y; 435 cci->row_ptr[0] = view->bitmap->plane; 436 for(i = 1; i < ip->rows; i++) 437 cci->row_ptr[i] = cci->row_ptr[i-1] + cci->row_bytes; 438 439 /* 440 * Initialize the column offsets to point at the correct location 441 * in the first plane. This definitely assumes a font width of 8! 442 */ 443 j = view->bitmap->depth * 2; 444 cci->column_offset[0] = 0; 445 for(i = 1; i < ip->cols; i++) 446 cci->column_offset[i] = ((i >> 1) * j) + (i & 1); 447 448 /* initialize the font cell pointers */ 449 cci->font_cell[ip->font.font_lo] = ip->font.font_p; 450 for(i = ip->font.font_lo+1; i <= ip->font.font_hi; i++) 451 cci->font_cell[i] = cci->font_cell[i-1] + ip->font.height; 452 453 return(error); 454 } 455 456 int 457 itecc_ioctl(ip, cmd, addr, flag, p) 458 struct ite_softc *ip; 459 u_long cmd; 460 caddr_t addr; 461 int flag; 462 struct proc *p; 463 { 464 struct winsize ws; 465 struct itewinsize *is; 466 int error = 0; 467 view_t *view = viewview(ip->grf->g_viewdev); 468 469 switch (cmd) { 470 case ITEIOCSWINSZ: 471 is = (struct itewinsize *)addr; 472 473 if(ite_newsize(ip, is)) 474 error = ENOMEM; 475 else { 476 view = viewview(ip->grf->g_viewdev); 477 ws.ws_row = ip->rows; 478 ws.ws_col = ip->cols; 479 ws.ws_xpixel = view->display.width; 480 ws.ws_ypixel = view->display.height; 481 ite_reset(ip); 482 /* 483 * XXX tell tty about the change 484 * XXX this is messy, but works 485 */ 486 iteioctl(ip->grf->g_itedev,TIOCSWINSZ,(caddr_t)&ws,0,p); 487 } 488 break; 489 case VIOCSCMAP: 490 case VIOCGCMAP: 491 /* 492 * XXX watchout for that NOPROC. its not really the kernel 493 * XXX talking these two commands don't use the proc pointer 494 * XXX though. 495 */ 496 error = viewioctl(ip->grf->g_viewdev, cmd, addr, flag, NOPROC); 497 break; 498 default: 499 error = -1; 500 break; 501 } 502 return (error); 503 } 504 505 static void 506 cursor32(struct ite_softc *ip, int flag) 507 { 508 int cend; 509 u_char *pl; 510 ipriv_t *cci; 511 512 cci = ip->priv; 513 514 if(flag == END_CURSOROPT) 515 cci->cursor_opt--; 516 else if(flag == START_CURSOROPT) { 517 if(!cci->cursor_opt) 518 cursor32(ip, ERASE_CURSOR); 519 cci->cursor_opt++; 520 return; /* if we are already opted. */ 521 } 522 523 if(cci->cursor_opt) 524 return; /* if we are still nested. */ 525 /* else we draw the cursor. */ 526 527 if(flag != DRAW_CURSOR && flag != END_CURSOROPT) { 528 /* 529 * erase the cursor 530 */ 531 cend = ip->font.height-1; 532 pl = cci->column_offset[ip->cursorx] 533 + cci->row_ptr[ip->cursory]; 534 __asm__ __volatile__ 535 ("1: notb %0@ ; addaw %4,%0\n\t" 536 "dbra %1,1b" 537 : "=a" (pl), "=d" (cend) 538 : "0" (pl), "1" (cend), 539 "d" (cci->row_offset) 540 ); 541 } 542 543 if(flag != DRAW_CURSOR && flag != MOVE_CURSOR && flag != END_CURSOROPT) 544 return; 545 546 /* 547 * draw the cursor 548 */ 549 cend = min(ip->curx, ip->cols-1); 550 if (flag == DRAW_CURSOR 551 && ip->cursorx == cend && ip->cursory == ip->cury) 552 return; 553 ip->cursorx = cend; 554 ip->cursory = ip->cury; 555 cend = ip->font.height-1; 556 pl = cci->column_offset[ip->cursorx] 557 + cci->row_ptr[ip->cursory]; 558 559 __asm__ __volatile__ 560 ("1: notb %0@ ; addaw %4,%0\n\t" 561 "dbra %1,1b" 562 : "=a" (pl), "=d" (cend) 563 : "0" (pl), "1" (cend), 564 "d" (cci->row_offset) 565 ); 566 } 567 568 static void 569 putc8(struct ite_softc *ip, int c, int dy, int dx, int mode) 570 { 571 register ipriv_t *cci = (ipriv_t *)ip->priv; 572 register u_char *pl = cci->column_offset[dx] + cci->row_ptr[dy]; 573 register u_int fh = cci->ft_y; 574 register u_int ro = cci->row_offset; 575 register u_char eor_mask; 576 register u_char bl, tmp, ul; 577 register u_char *ft; 578 579 if(c < ip->font.font_lo || c > ip->font.font_hi) 580 return; 581 582 ft = cci->font_cell[c]; 583 584 if(!mode) { 585 while(fh--) { 586 *pl = *ft++; pl += ro; 587 } 588 return; 589 } 590 591 eor_mask = (mode & ATTR_INV) ? 0xff : 0x00; 592 bl = (mode & ATTR_BOLD) ? 1 : 0; 593 ul = (mode & ATTR_UL) ? fh - cci->underline : fh; 594 for(; fh--; pl += ro) { 595 if(fh != ul) { 596 tmp = *ft++; 597 if(bl) 598 tmp |= (tmp >> 1); 599 *pl = tmp ^ eor_mask; 600 } 601 else { 602 *pl = 0xff ^ eor_mask; 603 ft++; 604 } 605 } 606 } 607 608 static void 609 clear8(struct ite_softc *ip, int sy, int sx, int h, int w) 610 { 611 ipriv_t *cci = (ipriv_t *) ip->priv; 612 view_t *v = viewview(ip->grf->g_viewdev); 613 bmap_t *bm = v->bitmap; 614 615 if((sx == 0) && (w == ip->cols)) { 616 /* common case: clearing whole lines */ 617 while (h--) { 618 int i; 619 u_char *ptr = cci->row_ptr[sy]; 620 for(i = 0; i < ip->font.height; i++) { 621 bzero(ptr, bm->bytes_per_row); 622 ptr += bm->bytes_per_row; 623 } 624 sy++; 625 } 626 } 627 else { 628 /* 629 * clearing only part of a line 630 * XXX could be optimized MUCH better, but is it worth the 631 * trouble? 632 */ 633 634 int i; 635 u_char *pls, *ple; 636 637 pls = cci->row_ptr[sy]; 638 ple = pls + cci->column_offset[sx + w-1]; 639 pls = pls + cci->column_offset[sx]; 640 641 for(i = ((ip->font.height) * h)-1; i >= 0; i--) { 642 u_char *p = pls; 643 while(p <= ple) 644 *p++ = 0; 645 pls += bm->bytes_per_row; 646 ple += bm->bytes_per_row; 647 } 648 } 649 } 650 651 /* Note: sx is only relevant for SCROLL_LEFT or SCROLL_RIGHT. */ 652 static void 653 scroll8(ip, sy, sx, count, dir) 654 register struct ite_softc *ip; 655 register int sy; 656 int dir, sx, count; 657 { 658 bmap_t *bm = viewview(ip->grf->g_viewdev)->bitmap; 659 u_char *pl = ((ipriv_t *)ip->priv)->row_ptr[sy]; 660 661 if(dir == SCROLL_UP) { 662 int dy = sy - count; 663 664 cursor32(ip, ERASE_CURSOR); 665 scrollbmap(bm, 0, dy*ip->font.height, bm->bytes_per_row >> 3, 666 (ip->bottom_margin-dy+1)*ip->font.height, 667 0, -(count*ip->font.height)); 668 } 669 else if(dir == SCROLL_DOWN) { 670 cursor32(ip, ERASE_CURSOR); 671 scrollbmap(bm, 0, sy*ip->font.height, bm->bytes_per_row >> 3, 672 (ip->bottom_margin-sy+1)*ip->font.height, 673 0, count*ip->font.height); 674 } 675 else if(dir == SCROLL_RIGHT) { 676 int sofs = (ip->cols - count) * ip->font.width; 677 int dofs = (ip->cols) * ip->font.width; 678 int i, j; 679 680 cursor32(ip, ERASE_CURSOR); 681 for(j = ip->font.height-1; j >= 0; j--) { 682 int sofs2 = sofs, dofs2 = dofs; 683 for (i = (ip->cols - (sx + count))-1; i >= 0; i--) { 684 int t; 685 sofs2 -= ip->font.width; 686 dofs2 -= ip->font.width; 687 asm("bfextu %1@{%2:%3},%0" : "=d" (t) 688 : "a" (pl), "d" (sofs2), "d" (ip->font.width)); 689 asm("bfins %3,%0@{%1:%2}" : 690 : "a" (pl), "d" (dofs2), "d" (ip->font.width), 691 "d" (t)); 692 } 693 pl += bm->bytes_per_row; 694 } 695 } 696 else { /* SCROLL_LEFT */ 697 int sofs = (sx) * ip->font.width; 698 int dofs = (sx - count) * ip->font.width; 699 int i, j; 700 701 cursor32(ip, ERASE_CURSOR); 702 for(j = ip->font.height-1; j >= 0; j--) { 703 int sofs2 = sofs, dofs2 = dofs; 704 for(i = (ip->cols - sx)-1; i >= 0; i--) { 705 int t; 706 707 asm("bfextu %1@{%2:%3},%0" : "=d" (t) 708 : "a" (pl), "d" (sofs2), "d" (ip->font.width)); 709 asm("bfins %3,%0@{%1:%2}" 710 : : "a" (pl), "d" (dofs2),"d" (ip->font.width), 711 "d" (t)); 712 sofs2 += ip->font.width; 713 dofs2 += ip->font.width; 714 } 715 pl += bm->bytes_per_row; 716 } 717 } 718 } 719 720 static void 721 scrollbmap (bmap_t *bm, u_short x, u_short y, u_short width, u_short height, short dx, short dy) 722 { 723 u_short lwpr = bm->bytes_per_row >> 2; 724 725 if(dx) { 726 /* FIX: */ panic ("delta x not supported in scroll bitmap yet."); 727 } 728 729 if(dy == 0) { 730 return; 731 } 732 if(dy > 0) { 733 u_long *pl = (u_long *)bm->plane; 734 u_long *src_y = pl + (lwpr*y); 735 u_long *dest_y = pl + (lwpr*(y+dy)); 736 u_long count = lwpr*(height-dy); 737 u_long *clr_y = src_y; 738 u_long clr_count = dest_y - src_y; 739 u_long bc, cbc; 740 741 src_y += count - 1; 742 dest_y += count - 1; 743 744 bc = count >> 4; 745 count &= 0xf; 746 747 while (bc--) { 748 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 749 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 750 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 751 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 752 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 753 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 754 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 755 *dest_y-- = *src_y--; *dest_y-- = *src_y--; 756 } 757 while (count--) 758 *dest_y-- = *src_y--; 759 760 cbc = clr_count >> 4; 761 clr_count &= 0xf; 762 763 while (cbc--) { 764 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 765 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 766 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 767 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 768 } 769 while(clr_count--) 770 *clr_y++ = 0; 771 } 772 else { 773 u_long *pl = (u_long *)bm->plane; 774 u_long *src_y = pl + (lwpr*(y-dy)); 775 u_long *dest_y = pl + (lwpr*y); 776 long count = lwpr*(height + dy); 777 u_long *clr_y = dest_y + count; 778 u_long clr_count = src_y - dest_y; 779 u_long bc, cbc; 780 781 bc = count >> 4; 782 count &= 0xf; 783 784 while(bc--) { 785 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 786 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 787 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 788 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 789 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 790 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 791 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 792 *dest_y++ = *src_y++; *dest_y++ = *src_y++; 793 } 794 while(count--) 795 *dest_y++ = *src_y++; 796 797 cbc = clr_count >> 4; 798 clr_count &= 0xf; 799 800 while (cbc--) { 801 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 802 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 803 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 804 *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; 805 } 806 while (clr_count--) 807 *clr_y++ = 0; 808 } 809 } 810
Indexes created Fri Sep 26 20:09:58 GMT 2025