rasops.c revision 1.53
1 /* $NetBSD: rasops.c,v 1.53 2006/10/12 01:31:56 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: rasops.c,v 1.53 2006/10/12 01:31:56 christos Exp $"); 41 42 #include "opt_rasops.h" 43 #include "rasops_glue.h" 44 #include "opt_wsmsgattrs.h" 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/time.h> 49 50 #include <sys/bswap.h> 51 #include <machine/endian.h> 52 53 #include <dev/wscons/wsdisplayvar.h> 54 #include <dev/wscons/wsconsio.h> 55 #include <dev/wsfont/wsfont.h> 56 #include <dev/rasops/rasops.h> 57 58 #ifndef _KERNEL 59 #include <errno.h> 60 #endif 61 62 /* ANSI colormap (R,G,B). Upper 8 are high-intensity */ 63 const u_char rasops_cmap[256*3] = { 64 0x00, 0x00, 0x00, /* black */ 65 0x7f, 0x00, 0x00, /* red */ 66 0x00, 0x7f, 0x00, /* green */ 67 0x7f, 0x7f, 0x00, /* brown */ 68 0x00, 0x00, 0x7f, /* blue */ 69 0x7f, 0x00, 0x7f, /* magenta */ 70 0x00, 0x7f, 0x7f, /* cyan */ 71 0xc7, 0xc7, 0xc7, /* white - XXX too dim? */ 72 73 0x7f, 0x7f, 0x7f, /* black */ 74 0xff, 0x00, 0x00, /* red */ 75 0x00, 0xff, 0x00, /* green */ 76 0xff, 0xff, 0x00, /* brown */ 77 0x00, 0x00, 0xff, /* blue */ 78 0xff, 0x00, 0xff, /* magenta */ 79 0x00, 0xff, 0xff, /* cyan */ 80 0xff, 0xff, 0xff, /* white */ 81 82 /* 83 * For the cursor, we need at least the last (255th) 84 * color to be white. Fill up white completely for 85 * simplicity. 86 */ 87 #define _CMWHITE 0xff, 0xff, 0xff, 88 #define _CMWHITE16 _CMWHITE _CMWHITE _CMWHITE _CMWHITE \ 89 _CMWHITE _CMWHITE _CMWHITE _CMWHITE \ 90 _CMWHITE _CMWHITE _CMWHITE _CMWHITE \ 91 _CMWHITE _CMWHITE _CMWHITE _CMWHITE 92 _CMWHITE16 _CMWHITE16 _CMWHITE16 _CMWHITE16 _CMWHITE16 93 _CMWHITE16 _CMWHITE16 _CMWHITE16 _CMWHITE16 _CMWHITE16 94 _CMWHITE16 _CMWHITE16 _CMWHITE16 _CMWHITE16 /* but not the last one */ 95 #undef _CMWHITE16 96 #undef _CMWHITE 97 98 /* 99 * For the cursor the fg/bg indices are bit inverted, so 100 * provide complimentary colors in the upper 16 entries. 101 */ 102 0x7f, 0x7f, 0x7f, /* black */ 103 0xff, 0x00, 0x00, /* red */ 104 0x00, 0xff, 0x00, /* green */ 105 0xff, 0xff, 0x00, /* brown */ 106 0x00, 0x00, 0xff, /* blue */ 107 0xff, 0x00, 0xff, /* magenta */ 108 0x00, 0xff, 0xff, /* cyan */ 109 0xff, 0xff, 0xff, /* white */ 110 111 0x00, 0x00, 0x00, /* black */ 112 0x7f, 0x00, 0x00, /* red */ 113 0x00, 0x7f, 0x00, /* green */ 114 0x7f, 0x7f, 0x00, /* brown */ 115 0x00, 0x00, 0x7f, /* blue */ 116 0x7f, 0x00, 0x7f, /* magenta */ 117 0x00, 0x7f, 0x7f, /* cyan */ 118 0xc7, 0xc7, 0xc7, /* white - XXX too dim? */ 119 }; 120 121 /* True if color is gray */ 122 const u_char rasops_isgray[16] = { 123 1, 0, 0, 0, 124 0, 0, 0, 1, 125 1, 0, 0, 0, 126 0, 0, 0, 1 127 }; 128 129 /* Generic functions */ 130 static void rasops_copyrows(void *, int, int, int); 131 static int rasops_mapchar(void *, int, u_int *); 132 static void rasops_cursor(void *, int, int, int); 133 static int rasops_allocattr_color(void *, int, int, int, long *); 134 static int rasops_allocattr_mono(void *, int, int, int, long *); 135 static void rasops_do_cursor(struct rasops_info *); 136 static void rasops_init_devcmap(struct rasops_info *); 137 138 /* 139 * Initialize a 'rasops_info' descriptor. 140 */ 141 int 142 rasops_init(ri, wantrows, wantcols) 143 struct rasops_info *ri; 144 int wantrows, wantcols; 145 { 146 147 #ifdef _KERNEL 148 /* Select a font if the caller doesn't care */ 149 if (ri->ri_font == NULL) { 150 int cookie; 151 152 wsfont_init(); 153 154 /* Want 8 pixel wide, don't care about aestethics */ 155 cookie = wsfont_find(NULL, 8, 0, 0, WSDISPLAY_FONTORDER_L2R, 156 WSDISPLAY_FONTORDER_L2R); 157 if (cookie <= 0) 158 cookie = wsfont_find(NULL, 0, 0, 0, 159 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R); 160 161 if (cookie <= 0) { 162 printf("rasops_init: font table is empty\n"); 163 return (-1); 164 } 165 166 if (wsfont_lock(cookie, &ri->ri_font)) { 167 printf("rasops_init: couldn't lock font\n"); 168 return (-1); 169 } 170 171 ri->ri_wsfcookie = cookie; 172 } 173 #endif 174 175 /* This should never happen in reality... */ 176 #ifdef DEBUG 177 if ((long)ri->ri_bits & 3) { 178 printf("rasops_init: bits not aligned on 32-bit boundary\n"); 179 return (-1); 180 } 181 182 if ((int)ri->ri_stride & 3) { 183 printf("rasops_init: stride not aligned on 32-bit boundary\n"); 184 return (-1); 185 } 186 #endif 187 188 if (rasops_reconfig(ri, wantrows, wantcols)) 189 return (-1); 190 191 rasops_init_devcmap(ri); 192 return (0); 193 } 194 195 /* 196 * Reconfigure (because parameters have changed in some way). 197 */ 198 int 199 rasops_reconfig(ri, wantrows, wantcols) 200 struct rasops_info *ri; 201 int wantrows, wantcols; 202 { 203 int bpp, s; 204 205 s = splhigh(); 206 207 if (ri->ri_font->fontwidth > 32 || ri->ri_font->fontwidth < 4) 208 panic("rasops_init: fontwidth assumptions botched!"); 209 210 /* Need this to frob the setup below */ 211 bpp = (ri->ri_depth == 15 ? 16 : ri->ri_depth); 212 213 if ((ri->ri_flg & RI_CFGDONE) != 0) 214 ri->ri_bits = ri->ri_origbits; 215 216 /* Don't care if the caller wants a hideously small console */ 217 if (wantrows < 10) 218 wantrows = 10; 219 220 if (wantcols < 20) 221 wantcols = 20; 222 223 /* Now constrain what they get */ 224 ri->ri_emuwidth = ri->ri_font->fontwidth * wantcols; 225 ri->ri_emuheight = ri->ri_font->fontheight * wantrows; 226 227 if (ri->ri_emuwidth > ri->ri_width) 228 ri->ri_emuwidth = ri->ri_width; 229 230 if (ri->ri_emuheight > ri->ri_height) 231 ri->ri_emuheight = ri->ri_height; 232 233 /* Reduce width until aligned on a 32-bit boundary */ 234 while ((ri->ri_emuwidth * bpp & 31) != 0) 235 ri->ri_emuwidth--; 236 237 ri->ri_cols = ri->ri_emuwidth / ri->ri_font->fontwidth; 238 ri->ri_rows = ri->ri_emuheight / ri->ri_font->fontheight; 239 ri->ri_emustride = ri->ri_emuwidth * bpp >> 3; 240 ri->ri_delta = ri->ri_stride - ri->ri_emustride; 241 ri->ri_ccol = 0; 242 ri->ri_crow = 0; 243 ri->ri_pelbytes = bpp >> 3; 244 245 ri->ri_xscale = (ri->ri_font->fontwidth * bpp) >> 3; 246 ri->ri_yscale = ri->ri_font->fontheight * ri->ri_stride; 247 ri->ri_fontscale = ri->ri_font->fontheight * ri->ri_font->stride; 248 249 #ifdef DEBUG 250 if ((ri->ri_delta & 3) != 0) 251 panic("rasops_init: ri_delta not aligned on 32-bit boundary"); 252 #endif 253 /* Clear the entire display */ 254 if ((ri->ri_flg & RI_CLEAR) != 0) 255 memset(ri->ri_bits, 0, ri->ri_stride * ri->ri_height); 256 257 /* Now centre our window if needs be */ 258 ri->ri_origbits = ri->ri_bits; 259 260 if ((ri->ri_flg & RI_CENTER) != 0) { 261 ri->ri_bits += (((ri->ri_width * bpp >> 3) - 262 ri->ri_emustride) >> 1) & ~3; 263 ri->ri_bits += ((ri->ri_height - ri->ri_emuheight) >> 1) * 264 ri->ri_stride; 265 266 ri->ri_yorigin = (int)(ri->ri_bits - ri->ri_origbits) 267 / ri->ri_stride; 268 ri->ri_xorigin = (((int)(ri->ri_bits - ri->ri_origbits) 269 % ri->ri_stride) * 8 / bpp); 270 } else 271 ri->ri_xorigin = ri->ri_yorigin = 0; 272 273 /* 274 * Fill in defaults for operations set. XXX this nukes private 275 * routines used by accelerated fb drivers. 276 */ 277 ri->ri_ops.mapchar = rasops_mapchar; 278 ri->ri_ops.copyrows = rasops_copyrows; 279 ri->ri_ops.copycols = rasops_copycols; 280 ri->ri_ops.erasecols = rasops_erasecols; 281 ri->ri_ops.eraserows = rasops_eraserows; 282 ri->ri_ops.cursor = rasops_cursor; 283 ri->ri_do_cursor = rasops_do_cursor; 284 285 if (ri->ri_depth < 8 || (ri->ri_flg & RI_FORCEMONO) != 0) { 286 ri->ri_ops.allocattr = rasops_allocattr_mono; 287 ri->ri_caps = WSSCREEN_UNDERLINE | WSSCREEN_REVERSE; 288 } else { 289 ri->ri_ops.allocattr = rasops_allocattr_color; 290 ri->ri_caps = WSSCREEN_UNDERLINE | WSSCREEN_HILIT | 291 WSSCREEN_WSCOLORS | WSSCREEN_REVERSE; 292 } 293 294 switch (ri->ri_depth) { 295 #if NRASOPS1 > 0 296 case 1: 297 rasops1_init(ri); 298 break; 299 #endif 300 #if NRASOPS2 > 0 301 case 2: 302 rasops2_init(ri); 303 break; 304 #endif 305 #if NRASOPS4 > 0 306 case 4: 307 rasops4_init(ri); 308 break; 309 #endif 310 #if NRASOPS8 > 0 311 case 8: 312 rasops8_init(ri); 313 break; 314 #endif 315 #if NRASOPS15 > 0 || NRASOPS16 > 0 316 case 15: 317 case 16: 318 rasops15_init(ri); 319 break; 320 #endif 321 #if NRASOPS24 > 0 322 case 24: 323 rasops24_init(ri); 324 break; 325 #endif 326 #if NRASOPS32 > 0 327 case 32: 328 rasops32_init(ri); 329 break; 330 #endif 331 default: 332 ri->ri_flg &= ~RI_CFGDONE; 333 splx(s); 334 return (-1); 335 } 336 337 ri->ri_flg |= RI_CFGDONE; 338 splx(s); 339 return (0); 340 } 341 342 /* 343 * Map a character. 344 */ 345 static int 346 rasops_mapchar(cookie, c, cp) 347 void *cookie; 348 int c; 349 u_int *cp; 350 { 351 struct rasops_info *ri; 352 353 ri = (struct rasops_info *)cookie; 354 355 #ifdef DIAGNOSTIC 356 if (ri->ri_font == NULL) 357 panic("rasops_mapchar: no font selected"); 358 #endif 359 360 if (ri->ri_font->encoding != WSDISPLAY_FONTENC_ISO) { 361 if ( (c = wsfont_map_unichar(ri->ri_font, c)) < 0) { 362 *cp = ' '; 363 return (0); 364 365 } 366 } 367 368 if (c < ri->ri_font->firstchar) { 369 *cp = ' '; 370 return (0); 371 } 372 373 if (c - ri->ri_font->firstchar >= ri->ri_font->numchars) { 374 *cp = ' '; 375 return (0); 376 } 377 378 *cp = c; 379 return (5); 380 } 381 382 /* 383 * Allocate a color attribute. 384 */ 385 static int 386 rasops_allocattr_color(void *cookie __unused, int fg, int bg, int flg, 387 long *attr) 388 { 389 int swap; 390 391 #ifdef RASOPS_CLIPPING 392 fg &= 7; 393 bg &= 7; 394 #endif 395 if ((flg & WSATTR_BLINK) != 0) 396 return (EINVAL); 397 398 if ((flg & WSATTR_WSCOLORS) == 0) { 399 #ifdef WS_DEFAULT_FG 400 fg = WS_DEFAULT_FG; 401 #else 402 fg = WSCOL_WHITE; 403 #endif 404 #ifdef WS_DEFAULT_BG 405 bg = WS_DEFAULT_BG; 406 #else 407 bg = WSCOL_BLACK; 408 #endif 409 } 410 411 if ((flg & WSATTR_REVERSE) != 0) { 412 swap = fg; 413 fg = bg; 414 bg = swap; 415 } 416 417 if ((flg & WSATTR_HILIT) != 0) 418 fg += 8; 419 420 flg = ((flg & WSATTR_UNDERLINE) ? 1 : 0); 421 422 if (rasops_isgray[fg]) 423 flg |= 2; 424 425 if (rasops_isgray[bg]) 426 flg |= 4; 427 428 *attr = (bg << 16) | (fg << 24) | flg; 429 return (0); 430 } 431 432 /* 433 * Allocate a mono attribute. 434 */ 435 static int 436 rasops_allocattr_mono(void *cookie __unused, int fg, int bg, int flg, 437 long *attr) 438 { 439 int swap; 440 441 if ((flg & (WSATTR_BLINK | WSATTR_HILIT | WSATTR_WSCOLORS)) != 0) 442 return (EINVAL); 443 444 fg = 1; 445 bg = 0; 446 447 if ((flg & WSATTR_REVERSE) != 0) { 448 swap = fg; 449 fg = bg; 450 bg = swap; 451 } 452 453 *attr = (bg << 16) | (fg << 24) | ((flg & WSATTR_UNDERLINE) ? 7 : 6); 454 return (0); 455 } 456 457 /* 458 * Copy rows. 459 */ 460 static void 461 rasops_copyrows(cookie, src, dst, num) 462 void *cookie; 463 int src, dst, num; 464 { 465 int32_t *sp, *dp, *hp, *srp, *drp, *hrp; 466 struct rasops_info *ri; 467 int n8, n1, cnt, delta; 468 469 ri = (struct rasops_info *)cookie; 470 hp = hrp = NULL; 471 472 #ifdef RASOPS_CLIPPING 473 if (dst == src) 474 return; 475 476 if (src < 0) { 477 num += src; 478 src = 0; 479 } 480 481 if ((src + num) > ri->ri_rows) 482 num = ri->ri_rows - src; 483 484 if (dst < 0) { 485 num += dst; 486 dst = 0; 487 } 488 489 if ((dst + num) > ri->ri_rows) 490 num = ri->ri_rows - dst; 491 492 if (num <= 0) 493 return; 494 #endif 495 496 num *= ri->ri_font->fontheight; 497 n8 = ri->ri_emustride >> 5; 498 n1 = (ri->ri_emustride >> 2) & 7; 499 500 if (dst < src) { 501 srp = (int32_t *)(ri->ri_bits + src * ri->ri_yscale); 502 drp = (int32_t *)(ri->ri_bits + dst * ri->ri_yscale); 503 if (ri->ri_hwbits) 504 hrp = (int32_t *)(ri->ri_hwbits + dst * 505 ri->ri_yscale); 506 delta = ri->ri_stride; 507 } else { 508 src = ri->ri_font->fontheight * src + num - 1; 509 dst = ri->ri_font->fontheight * dst + num - 1; 510 srp = (int32_t *)(ri->ri_bits + src * ri->ri_stride); 511 drp = (int32_t *)(ri->ri_bits + dst * ri->ri_stride); 512 if (ri->ri_hwbits) 513 hrp = (int32_t *)(ri->ri_hwbits + dst * 514 ri->ri_stride); 515 516 delta = -ri->ri_stride; 517 } 518 519 while (num--) { 520 dp = drp; 521 sp = srp; 522 if (ri->ri_hwbits) 523 hp = hrp; 524 525 DELTA(drp, delta, int32_t *); 526 DELTA(srp, delta, int32_t *); 527 if (ri->ri_hwbits) 528 DELTA(hrp, delta, int32_t *); 529 530 for (cnt = n8; cnt; cnt--) { 531 dp[0] = sp[0]; 532 dp[1] = sp[1]; 533 dp[2] = sp[2]; 534 dp[3] = sp[3]; 535 dp[4] = sp[4]; 536 dp[5] = sp[5]; 537 dp[6] = sp[6]; 538 dp[7] = sp[7]; 539 dp += 8; 540 sp += 8; 541 } 542 if (ri->ri_hwbits) { 543 sp -= (8 * n8); 544 for (cnt = n8; cnt; cnt--) { 545 hp[0] = sp[0]; 546 hp[1] = sp[1]; 547 hp[2] = sp[2]; 548 hp[3] = sp[3]; 549 hp[4] = sp[4]; 550 hp[5] = sp[5]; 551 hp[6] = sp[6]; 552 hp[7] = sp[7]; 553 hp += 8; 554 sp += 8; 555 } 556 } 557 558 for (cnt = n1; cnt; cnt--) { 559 *dp++ = *sp++; 560 if (ri->ri_hwbits) 561 *hp++ = *(sp - 1); 562 } 563 } 564 } 565 566 /* 567 * Copy columns. This is slow, and hard to optimize due to alignment, 568 * and the fact that we have to copy both left->right and right->left. 569 * We simply cop-out here and use memmove(), since it handles all of 570 * these cases anyway. 571 */ 572 void 573 rasops_copycols(cookie, row, src, dst, num) 574 void *cookie; 575 int row, src, dst, num; 576 { 577 struct rasops_info *ri; 578 u_char *sp, *dp, *hp; 579 int height; 580 581 ri = (struct rasops_info *)cookie; 582 hp = NULL; 583 584 #ifdef RASOPS_CLIPPING 585 if (dst == src) 586 return; 587 588 /* Catches < 0 case too */ 589 if ((unsigned)row >= (unsigned)ri->ri_rows) 590 return; 591 592 if (src < 0) { 593 num += src; 594 src = 0; 595 } 596 597 if ((src + num) > ri->ri_cols) 598 num = ri->ri_cols - src; 599 600 if (dst < 0) { 601 num += dst; 602 dst = 0; 603 } 604 605 if ((dst + num) > ri->ri_cols) 606 num = ri->ri_cols - dst; 607 608 if (num <= 0) 609 return; 610 #endif 611 612 num *= ri->ri_xscale; 613 row *= ri->ri_yscale; 614 height = ri->ri_font->fontheight; 615 616 sp = ri->ri_bits + row + src * ri->ri_xscale; 617 dp = ri->ri_bits + row + dst * ri->ri_xscale; 618 if (ri->ri_hwbits) 619 hp = ri->ri_hwbits + row + dst * ri->ri_xscale; 620 621 while (height--) { 622 memmove(dp, sp, num); 623 if (ri->ri_hwbits) { 624 memcpy(hp, sp, num); 625 hp += ri->ri_stride; 626 } 627 dp += ri->ri_stride; 628 sp += ri->ri_stride; 629 } 630 } 631 632 /* 633 * Turn cursor off/on. 634 */ 635 static void 636 rasops_cursor(cookie, on, row, col) 637 void *cookie; 638 int on, row, col; 639 { 640 struct rasops_info *ri; 641 642 ri = (struct rasops_info *)cookie; 643 644 /* Turn old cursor off */ 645 if ((ri->ri_flg & RI_CURSOR) != 0) 646 #ifdef RASOPS_CLIPPING 647 if ((ri->ri_flg & RI_CURSORCLIP) == 0) 648 #endif 649 ri->ri_do_cursor(ri); 650 651 /* Select new cursor */ 652 #ifdef RASOPS_CLIPPING 653 ri->ri_flg &= ~RI_CURSORCLIP; 654 655 if (row < 0 || row >= ri->ri_rows) 656 ri->ri_flg |= RI_CURSORCLIP; 657 else if (col < 0 || col >= ri->ri_cols) 658 ri->ri_flg |= RI_CURSORCLIP; 659 #endif 660 ri->ri_crow = row; 661 ri->ri_ccol = col; 662 663 if (on) { 664 ri->ri_flg |= RI_CURSOR; 665 #ifdef RASOPS_CLIPPING 666 if ((ri->ri_flg & RI_CURSORCLIP) == 0) 667 #endif 668 ri->ri_do_cursor(ri); 669 } else 670 ri->ri_flg &= ~RI_CURSOR; 671 } 672 673 /* 674 * Make the device colormap 675 */ 676 static void 677 rasops_init_devcmap(ri) 678 struct rasops_info *ri; 679 { 680 const u_char *p; 681 int i, c; 682 683 switch (ri->ri_depth) { 684 case 1: 685 ri->ri_devcmap[0] = 0; 686 for (i = 1; i < 16; i++) 687 ri->ri_devcmap[i] = -1; 688 return; 689 690 case 2: 691 for (i = 1; i < 15; i++) 692 ri->ri_devcmap[i] = 0xaaaaaaaa; 693 694 ri->ri_devcmap[0] = 0; 695 ri->ri_devcmap[8] = 0x55555555; 696 ri->ri_devcmap[15] = -1; 697 return; 698 699 case 8: 700 for (i = 0; i < 16; i++) 701 ri->ri_devcmap[i] = i | (i<<8) | (i<<16) | (i<<24); 702 return; 703 } 704 705 p = rasops_cmap; 706 707 for (i = 0; i < 16; i++) { 708 if (ri->ri_rnum <= 8) 709 c = (*p >> (8 - ri->ri_rnum)) << ri->ri_rpos; 710 else 711 c = (*p << (ri->ri_rnum - 8)) << ri->ri_rpos; 712 p++; 713 714 if (ri->ri_gnum <= 8) 715 c |= (*p >> (8 - ri->ri_gnum)) << ri->ri_gpos; 716 else 717 c |= (*p << (ri->ri_gnum - 8)) << ri->ri_gpos; 718 p++; 719 720 if (ri->ri_bnum <= 8) 721 c |= (*p >> (8 - ri->ri_bnum)) << ri->ri_bpos; 722 else 723 c |= (*p << (ri->ri_bnum - 8)) << ri->ri_bpos; 724 p++; 725 726 /* Fill the word for generic routines, which want this */ 727 if (ri->ri_depth == 24) 728 c = c | ((c & 0xff) << 24); 729 else if (ri->ri_depth <= 16) 730 c = c | (c << 16); 731 732 /* 24bpp does bswap on the fly. {32,16,15}bpp do it here. */ 733 if ((ri->ri_flg & RI_BSWAP) == 0) 734 ri->ri_devcmap[i] = c; 735 else if (ri->ri_depth == 32) 736 ri->ri_devcmap[i] = bswap32(c); 737 else if (ri->ri_depth == 16 || ri->ri_depth == 15) 738 ri->ri_devcmap[i] = bswap16(c); 739 else 740 ri->ri_devcmap[i] = c; 741 } 742 } 743 744 /* 745 * Unpack a rasops attribute 746 */ 747 void 748 rasops_unpack_attr(attr, fg, bg, underline) 749 long attr; 750 int *fg, *bg, *underline; 751 { 752 753 *fg = ((u_int)attr >> 24) & 0xf; 754 *bg = ((u_int)attr >> 16) & 0xf; 755 if (underline != NULL) 756 *underline = (u_int)attr & 1; 757 } 758 759 /* 760 * Erase rows. This isn't static, since 24-bpp uses it in special cases. 761 */ 762 void 763 rasops_eraserows(cookie, row, num, attr) 764 void *cookie; 765 int row, num; 766 long attr; 767 { 768 struct rasops_info *ri; 769 int np, nw, cnt, delta; 770 int32_t *dp, *hp, clr; 771 int i; 772 773 ri = (struct rasops_info *)cookie; 774 hp = NULL; 775 776 #ifdef RASOPS_CLIPPING 777 if (row < 0) { 778 num += row; 779 row = 0; 780 } 781 782 if ((row + num) > ri->ri_rows) 783 num = ri->ri_rows - row; 784 785 if (num <= 0) 786 return; 787 #endif 788 789 clr = ri->ri_devcmap[(attr >> 16) & 0xf]; 790 791 /* 792 * XXX The wsdisplay_emulops interface seems a little deficient in 793 * that there is no way to clear the *entire* screen. We provide a 794 * workaround here: if the entire console area is being cleared, and 795 * the RI_FULLCLEAR flag is set, clear the entire display. 796 */ 797 if (num == ri->ri_rows && (ri->ri_flg & RI_FULLCLEAR) != 0) { 798 np = ri->ri_stride >> 5; 799 nw = (ri->ri_stride >> 2) & 7; 800 num = ri->ri_height; 801 dp = (int32_t *)ri->ri_origbits; 802 if (ri->ri_hwbits) 803 hp = (int32_t *)ri->ri_hwbits; 804 delta = 0; 805 } else { 806 np = ri->ri_emustride >> 5; 807 nw = (ri->ri_emustride >> 2) & 7; 808 num *= ri->ri_font->fontheight; 809 dp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale); 810 if (ri->ri_hwbits) 811 hp = (int32_t *)(ri->ri_hwbits + row * 812 ri->ri_yscale); 813 delta = ri->ri_delta; 814 } 815 816 while (num--) { 817 for (cnt = np; cnt; cnt--) { 818 for (i = 0; i < 8; i++) { 819 dp[i] = clr; 820 if (ri->ri_hwbits) 821 hp[i] = clr; 822 } 823 dp += 8; 824 if (ri->ri_hwbits) 825 hp += 8; 826 } 827 828 for (cnt = nw; cnt; cnt--) { 829 *(int32_t *)dp = clr; 830 DELTA(dp, 4, int32_t *); 831 if (ri->ri_hwbits) { 832 *(int32_t *)hp = clr; 833 DELTA(hp, 4, int32_t *); 834 } 835 } 836 837 DELTA(dp, delta, int32_t *); 838 if (ri->ri_hwbits) 839 DELTA(hp, delta, int32_t *); 840 } 841 } 842 843 /* 844 * Actually turn the cursor on or off. This does the dirty work for 845 * rasops_cursor(). 846 */ 847 static void 848 rasops_do_cursor(ri) 849 struct rasops_info *ri; 850 { 851 int full1, height, cnt, slop1, slop2, row, col; 852 u_char *dp, *rp, *hrp, *hp; 853 854 hrp = hp = NULL; 855 856 row = ri->ri_crow; 857 col = ri->ri_ccol; 858 859 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 860 if (ri->ri_hwbits) 861 hrp = ri->ri_hwbits + row * ri->ri_yscale + col 862 * ri->ri_xscale; 863 height = ri->ri_font->fontheight; 864 slop1 = (4 - ((long)rp & 3)) & 3; 865 866 if (slop1 > ri->ri_xscale) 867 slop1 = ri->ri_xscale; 868 869 slop2 = (ri->ri_xscale - slop1) & 3; 870 full1 = (ri->ri_xscale - slop1 - slop2) >> 2; 871 872 if ((slop1 | slop2) == 0) { 873 /* A common case */ 874 while (height--) { 875 dp = rp; 876 rp += ri->ri_stride; 877 if (ri->ri_hwbits) { 878 hp = hrp; 879 hrp += ri->ri_stride; 880 } 881 882 for (cnt = full1; cnt; cnt--) { 883 *(int32_t *)dp ^= ~0; 884 dp += 4; 885 if (ri->ri_hwbits) { 886 *(int32_t *)hp ^= ~0; 887 hp += 4; 888 } 889 } 890 } 891 } else { 892 /* XXX this is stupid.. use masks instead */ 893 while (height--) { 894 dp = rp; 895 rp += ri->ri_stride; 896 if (ri->ri_hwbits) { 897 hp = hrp; 898 hrp += ri->ri_stride; 899 } 900 901 if (slop1 & 1) { 902 *dp++ ^= ~0; 903 if (ri->ri_hwbits) 904 *hp++ ^= ~0; 905 } 906 907 if (slop1 & 2) { 908 *(int16_t *)dp ^= ~0; 909 dp += 2; 910 if (ri->ri_hwbits) { 911 *(int16_t *)hp ^= ~0; 912 hp += 2; 913 } 914 } 915 916 for (cnt = full1; cnt; cnt--) { 917 *(int32_t *)dp ^= ~0; 918 dp += 4; 919 if (ri->ri_hwbits) { 920 *(int32_t *)hp ^= ~0; 921 hp += 4; 922 } 923 } 924 925 if (slop2 & 1) { 926 *dp++ ^= ~0; 927 if (ri->ri_hwbits) 928 *hp++ ^= ~0; 929 } 930 931 if (slop2 & 2) { 932 *(int16_t *)dp ^= ~0; 933 if (ri->ri_hwbits) 934 *(int16_t *)hp ^= ~0; 935 } 936 } 937 } 938 } 939 940 /* 941 * Erase columns. 942 */ 943 void 944 rasops_erasecols(cookie, row, col, num, attr) 945 void *cookie; 946 int row, col, num; 947 long attr; 948 { 949 int n8, height, cnt, slop1, slop2, clr; 950 struct rasops_info *ri; 951 int32_t *rp, *dp, *hrp, *hp; 952 int i; 953 954 ri = (struct rasops_info *)cookie; 955 hrp = hp = NULL; 956 957 #ifdef RASOPS_CLIPPING 958 if ((unsigned)row >= (unsigned)ri->ri_rows) 959 return; 960 961 if (col < 0) { 962 num += col; 963 col = 0; 964 } 965 966 if ((col + num) > ri->ri_cols) 967 num = ri->ri_cols - col; 968 969 if (num <= 0) 970 return; 971 #endif 972 973 num = num * ri->ri_xscale; 974 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); 975 if (ri->ri_hwbits) 976 hrp = (int32_t *)(ri->ri_hwbits + row*ri->ri_yscale + 977 col*ri->ri_xscale); 978 height = ri->ri_font->fontheight; 979 clr = ri->ri_devcmap[(attr >> 16) & 0xf]; 980 981 /* Don't bother using the full loop for <= 32 pels */ 982 if (num <= 32) { 983 if (((num | ri->ri_xscale) & 3) == 0) { 984 /* Word aligned blt */ 985 num >>= 2; 986 987 while (height--) { 988 dp = rp; 989 DELTA(rp, ri->ri_stride, int32_t *); 990 if (ri->ri_hwbits) { 991 hp = hrp; 992 DELTA(hrp, ri->ri_stride, int32_t *); 993 } 994 995 for (cnt = num; cnt; cnt--) { 996 *dp++ = clr; 997 if (ri->ri_hwbits) 998 *hp++ = clr; 999 } 1000 } 1001 } else if (((num | ri->ri_xscale) & 1) == 0) { 1002 /* 1003 * Halfword aligned blt. This is needed so the 1004 * 15/16 bit ops can use this function. 1005 */ 1006 num >>= 1; 1007 1008 while (height--) { 1009 dp = rp; 1010 DELTA(rp, ri->ri_stride, int32_t *); 1011 if (ri->ri_hwbits) { 1012 hp = hrp; 1013 DELTA(hrp, ri->ri_stride, int32_t *); 1014 } 1015 1016 for (cnt = num; cnt; cnt--) { 1017 *(int16_t *)dp = clr; 1018 DELTA(dp, 2, int32_t *); 1019 if (ri->ri_hwbits) { 1020 *(int16_t *)hp = clr; 1021 DELTA(hp, 2, int32_t *); 1022 } 1023 } 1024 } 1025 } else { 1026 while (height--) { 1027 dp = rp; 1028 DELTA(rp, ri->ri_stride, int32_t *); 1029 if (ri->ri_hwbits) { 1030 hp = hrp; 1031 DELTA(hrp, ri->ri_stride, int32_t *); 1032 } 1033 1034 for (cnt = num; cnt; cnt--) { 1035 *(u_char *)dp = clr; 1036 DELTA(dp, 1, int32_t *); 1037 if (ri->ri_hwbits) { 1038 *(u_char *)hp = clr; 1039 DELTA(hp, 1, int32_t *); 1040 } 1041 } 1042 } 1043 } 1044 1045 return; 1046 } 1047 1048 slop1 = (4 - ((long)rp & 3)) & 3; 1049 slop2 = (num - slop1) & 3; 1050 num -= slop1 + slop2; 1051 n8 = num >> 5; 1052 num = (num >> 2) & 7; 1053 1054 while (height--) { 1055 dp = rp; 1056 DELTA(rp, ri->ri_stride, int32_t *); 1057 if (ri->ri_hwbits) { 1058 hp = hrp; 1059 DELTA(hrp, ri->ri_stride, int32_t *); 1060 } 1061 1062 /* Align span to 4 bytes */ 1063 if (slop1 & 1) { 1064 *(u_char *)dp = clr; 1065 DELTA(dp, 1, int32_t *); 1066 if (ri->ri_hwbits) { 1067 *(u_char *)hp = clr; 1068 DELTA(hp, 1, int32_t *); 1069 } 1070 } 1071 1072 if (slop1 & 2) { 1073 *(int16_t *)dp = clr; 1074 DELTA(dp, 2, int32_t *); 1075 if (ri->ri_hwbits) { 1076 *(int16_t *)hp = clr; 1077 DELTA(hp, 2, int32_t *); 1078 } 1079 } 1080 1081 /* Write 32 bytes per loop */ 1082 for (cnt = n8; cnt; cnt--) { 1083 for (i = 0; i < 8; i++) { 1084 dp[i] = clr; 1085 if (ri->ri_hwbits) 1086 hp[i] = clr; 1087 } 1088 dp += 8; 1089 if (ri->ri_hwbits) 1090 hp += 8; 1091 } 1092 1093 /* Write 4 bytes per loop */ 1094 for (cnt = num; cnt; cnt--) { 1095 *dp++ = clr; 1096 if (ri->ri_hwbits) 1097 *hp++ = clr; 1098 } 1099 1100 /* Write unaligned trailing slop */ 1101 if (slop2 & 1) { 1102 *(u_char *)dp = clr; 1103 DELTA(dp, 1, int32_t *); 1104 if (ri->ri_hwbits) { 1105 *(u_char *)hp = clr; 1106 DELTA(hp, 1, int32_t *); 1107 } 1108 } 1109 1110 if (slop2 & 2) { 1111 *(int16_t *)dp = clr; 1112 if (ri->ri_hwbits) 1113 *(int16_t *)hp = clr; 1114 } 1115 } 1116 } 1117
Indexes created Tue Sep 23 13:09:54 GMT 2025