rasops.c revision 1.49.2.2
1 /* $NetBSD: rasops.c,v 1.49.2.2 2006/02/18 15:39:11 yamt 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 1.49.2.2 2006/02/18 15:39:11 yamt 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(cookie, fg, bg, flg, attr) 387 void *cookie; 388 int fg, bg, flg; 389 long *attr; 390 { 391 int swap; 392 393 #ifdef RASOPS_CLIPPING 394 fg &= 7; 395 bg &= 7; 396 #endif 397 if ((flg & WSATTR_BLINK) != 0) 398 return (EINVAL); 399 400 if ((flg & WSATTR_WSCOLORS) == 0) { 401 #ifdef WS_DEFAULT_FG 402 fg = WS_DEFAULT_FG; 403 #else 404 fg = WSCOL_WHITE; 405 #endif 406 #ifdef WS_DEFAULT_BG 407 bg = WS_DEFAULT_BG; 408 #else 409 bg = WSCOL_BLACK; 410 #endif 411 } 412 413 if ((flg & WSATTR_REVERSE) != 0) { 414 swap = fg; 415 fg = bg; 416 bg = swap; 417 } 418 419 if ((flg & WSATTR_HILIT) != 0) 420 fg += 8; 421 422 flg = ((flg & WSATTR_UNDERLINE) ? 1 : 0); 423 424 if (rasops_isgray[fg]) 425 flg |= 2; 426 427 if (rasops_isgray[bg]) 428 flg |= 4; 429 430 *attr = (bg << 16) | (fg << 24) | flg; 431 return (0); 432 } 433 434 /* 435 * Allocate a mono attribute. 436 */ 437 static int 438 rasops_allocattr_mono(cookie, fg, bg, flg, attr) 439 void *cookie; 440 int fg, bg, flg; 441 long *attr; 442 { 443 int swap; 444 445 if ((flg & (WSATTR_BLINK | WSATTR_HILIT | WSATTR_WSCOLORS)) != 0) 446 return (EINVAL); 447 448 fg = 1; 449 bg = 0; 450 451 if ((flg & WSATTR_REVERSE) != 0) { 452 swap = fg; 453 fg = bg; 454 bg = swap; 455 } 456 457 *attr = (bg << 16) | (fg << 24) | ((flg & WSATTR_UNDERLINE) ? 7 : 6); 458 return (0); 459 } 460 461 /* 462 * Copy rows. 463 */ 464 static void 465 rasops_copyrows(cookie, src, dst, num) 466 void *cookie; 467 int src, dst, num; 468 { 469 int32_t *sp, *dp, *hp, *srp, *drp, *hrp; 470 struct rasops_info *ri; 471 int n8, n1, cnt, delta; 472 int i; 473 474 ri = (struct rasops_info *)cookie; 475 hp = hrp = NULL; 476 477 #ifdef RASOPS_CLIPPING 478 if (dst == src) 479 return; 480 481 if (src < 0) { 482 num += src; 483 src = 0; 484 } 485 486 if ((src + num) > ri->ri_rows) 487 num = ri->ri_rows - src; 488 489 if (dst < 0) { 490 num += dst; 491 dst = 0; 492 } 493 494 if ((dst + num) > ri->ri_rows) 495 num = ri->ri_rows - dst; 496 497 if (num <= 0) 498 return; 499 #endif 500 501 num *= ri->ri_font->fontheight; 502 n8 = ri->ri_emustride >> 5; 503 n1 = (ri->ri_emustride >> 2) & 7; 504 505 if (dst < src) { 506 srp = (int32_t *)(ri->ri_bits + src * ri->ri_yscale); 507 drp = (int32_t *)(ri->ri_bits + dst * ri->ri_yscale); 508 if (ri->ri_hwbits) 509 hrp = (int32_t *)(ri->ri_hwbits + dst * 510 ri->ri_yscale); 511 delta = ri->ri_stride; 512 } else { 513 src = ri->ri_font->fontheight * src + num - 1; 514 dst = ri->ri_font->fontheight * dst + num - 1; 515 srp = (int32_t *)(ri->ri_bits + src * ri->ri_stride); 516 drp = (int32_t *)(ri->ri_bits + dst * ri->ri_stride); 517 if (ri->ri_hwbits) 518 hrp = (int32_t *)(ri->ri_hwbits + dst * 519 ri->ri_stride); 520 521 delta = -ri->ri_stride; 522 } 523 524 while (num--) { 525 dp = drp; 526 sp = srp; 527 if (ri->ri_hwbits) 528 hp = hrp; 529 530 DELTA(drp, delta, int32_t *); 531 DELTA(srp, delta, int32_t *); 532 if (ri->ri_hwbits) 533 DELTA(hrp, delta, int32_t *); 534 535 for (cnt = n8; cnt; cnt--) { 536 for (i = 0; i < 8; i++) { 537 dp[i] = sp[i]; 538 if (ri->ri_hwbits) 539 hp[i] = sp[i]; 540 } 541 dp += 8; 542 sp += 8; 543 if (ri->ri_hwbits) 544 hp += 8; 545 } 546 547 for (cnt = n1; cnt; cnt--) { 548 *dp++ = *sp++; 549 if (ri->ri_hwbits) 550 *hp++ = *(sp - 1); 551 } 552 } 553 } 554 555 /* 556 * Copy columns. This is slow, and hard to optimize due to alignment, 557 * and the fact that we have to copy both left->right and right->left. 558 * We simply cop-out here and use memmove(), since it handles all of 559 * these cases anyway. 560 */ 561 void 562 rasops_copycols(cookie, row, src, dst, num) 563 void *cookie; 564 int row, src, dst, num; 565 { 566 struct rasops_info *ri; 567 u_char *sp, *dp, *hp; 568 int height; 569 570 ri = (struct rasops_info *)cookie; 571 hp = NULL; 572 573 #ifdef RASOPS_CLIPPING 574 if (dst == src) 575 return; 576 577 /* Catches < 0 case too */ 578 if ((unsigned)row >= (unsigned)ri->ri_rows) 579 return; 580 581 if (src < 0) { 582 num += src; 583 src = 0; 584 } 585 586 if ((src + num) > ri->ri_cols) 587 num = ri->ri_cols - src; 588 589 if (dst < 0) { 590 num += dst; 591 dst = 0; 592 } 593 594 if ((dst + num) > ri->ri_cols) 595 num = ri->ri_cols - dst; 596 597 if (num <= 0) 598 return; 599 #endif 600 601 num *= ri->ri_xscale; 602 row *= ri->ri_yscale; 603 height = ri->ri_font->fontheight; 604 605 sp = ri->ri_bits + row + src * ri->ri_xscale; 606 dp = ri->ri_bits + row + dst * ri->ri_xscale; 607 if (ri->ri_hwbits) 608 hp = ri->ri_hwbits + row + dst * ri->ri_xscale; 609 610 while (height--) { 611 memmove(dp, sp, num); 612 if (ri->ri_hwbits) { 613 memcpy(hp, sp, num); 614 hp += ri->ri_stride; 615 } 616 dp += ri->ri_stride; 617 sp += ri->ri_stride; 618 } 619 } 620 621 /* 622 * Turn cursor off/on. 623 */ 624 static void 625 rasops_cursor(cookie, on, row, col) 626 void *cookie; 627 int on, row, col; 628 { 629 struct rasops_info *ri; 630 631 ri = (struct rasops_info *)cookie; 632 633 /* Turn old cursor off */ 634 if ((ri->ri_flg & RI_CURSOR) != 0) 635 #ifdef RASOPS_CLIPPING 636 if ((ri->ri_flg & RI_CURSORCLIP) == 0) 637 #endif 638 ri->ri_do_cursor(ri); 639 640 /* Select new cursor */ 641 #ifdef RASOPS_CLIPPING 642 ri->ri_flg &= ~RI_CURSORCLIP; 643 644 if (row < 0 || row >= ri->ri_rows) 645 ri->ri_flg |= RI_CURSORCLIP; 646 else if (col < 0 || col >= ri->ri_cols) 647 ri->ri_flg |= RI_CURSORCLIP; 648 #endif 649 ri->ri_crow = row; 650 ri->ri_ccol = col; 651 652 if (on) { 653 ri->ri_flg |= RI_CURSOR; 654 #ifdef RASOPS_CLIPPING 655 if ((ri->ri_flg & RI_CURSORCLIP) == 0) 656 #endif 657 ri->ri_do_cursor(ri); 658 } else 659 ri->ri_flg &= ~RI_CURSOR; 660 } 661 662 /* 663 * Make the device colormap 664 */ 665 static void 666 rasops_init_devcmap(ri) 667 struct rasops_info *ri; 668 { 669 const u_char *p; 670 int i, c; 671 672 switch (ri->ri_depth) { 673 case 1: 674 ri->ri_devcmap[0] = 0; 675 for (i = 1; i < 16; i++) 676 ri->ri_devcmap[i] = -1; 677 return; 678 679 case 2: 680 for (i = 1; i < 15; i++) 681 ri->ri_devcmap[i] = 0xaaaaaaaa; 682 683 ri->ri_devcmap[0] = 0; 684 ri->ri_devcmap[8] = 0x55555555; 685 ri->ri_devcmap[15] = -1; 686 return; 687 688 case 8: 689 for (i = 0; i < 16; i++) 690 ri->ri_devcmap[i] = i | (i<<8) | (i<<16) | (i<<24); 691 return; 692 } 693 694 p = rasops_cmap; 695 696 for (i = 0; i < 16; i++) { 697 if (ri->ri_rnum <= 8) 698 c = (*p >> (8 - ri->ri_rnum)) << ri->ri_rpos; 699 else 700 c = (*p << (ri->ri_rnum - 8)) << ri->ri_rpos; 701 p++; 702 703 if (ri->ri_gnum <= 8) 704 c |= (*p >> (8 - ri->ri_gnum)) << ri->ri_gpos; 705 else 706 c |= (*p << (ri->ri_gnum - 8)) << ri->ri_gpos; 707 p++; 708 709 if (ri->ri_bnum <= 8) 710 c |= (*p >> (8 - ri->ri_bnum)) << ri->ri_bpos; 711 else 712 c |= (*p << (ri->ri_bnum - 8)) << ri->ri_bpos; 713 p++; 714 715 /* Fill the word for generic routines, which want this */ 716 if (ri->ri_depth == 24) 717 c = c | ((c & 0xff) << 24); 718 else if (ri->ri_depth <= 16) 719 c = c | (c << 16); 720 721 /* 24bpp does bswap on the fly. {32,16,15}bpp do it here. */ 722 if ((ri->ri_flg & RI_BSWAP) == 0) 723 ri->ri_devcmap[i] = c; 724 else if (ri->ri_depth == 32) 725 ri->ri_devcmap[i] = bswap32(c); 726 else if (ri->ri_depth == 16 || ri->ri_depth == 15) 727 ri->ri_devcmap[i] = bswap16(c); 728 else 729 ri->ri_devcmap[i] = c; 730 } 731 } 732 733 /* 734 * Unpack a rasops attribute 735 */ 736 void 737 rasops_unpack_attr(attr, fg, bg, underline) 738 long attr; 739 int *fg, *bg, *underline; 740 { 741 742 *fg = ((u_int)attr >> 24) & 0xf; 743 *bg = ((u_int)attr >> 16) & 0xf; 744 if (underline != NULL) 745 *underline = (u_int)attr & 1; 746 } 747 748 /* 749 * Erase rows. This isn't static, since 24-bpp uses it in special cases. 750 */ 751 void 752 rasops_eraserows(cookie, row, num, attr) 753 void *cookie; 754 int row, num; 755 long attr; 756 { 757 struct rasops_info *ri; 758 int np, nw, cnt, delta; 759 int32_t *dp, *hp, clr; 760 int i; 761 762 ri = (struct rasops_info *)cookie; 763 hp = NULL; 764 765 #ifdef RASOPS_CLIPPING 766 if (row < 0) { 767 num += row; 768 row = 0; 769 } 770 771 if ((row + num) > ri->ri_rows) 772 num = ri->ri_rows - row; 773 774 if (num <= 0) 775 return; 776 #endif 777 778 clr = ri->ri_devcmap[(attr >> 16) & 0xf]; 779 780 /* 781 * XXX The wsdisplay_emulops interface seems a little deficient in 782 * that there is no way to clear the *entire* screen. We provide a 783 * workaround here: if the entire console area is being cleared, and 784 * the RI_FULLCLEAR flag is set, clear the entire display. 785 */ 786 if (num == ri->ri_rows && (ri->ri_flg & RI_FULLCLEAR) != 0) { 787 np = ri->ri_stride >> 5; 788 nw = (ri->ri_stride >> 2) & 7; 789 num = ri->ri_height; 790 dp = (int32_t *)ri->ri_origbits; 791 if (ri->ri_hwbits) 792 hp = (int32_t *)ri->ri_hwbits; 793 delta = 0; 794 } else { 795 np = ri->ri_emustride >> 5; 796 nw = (ri->ri_emustride >> 2) & 7; 797 num *= ri->ri_font->fontheight; 798 dp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale); 799 if (ri->ri_hwbits) 800 hp = (int32_t *)(ri->ri_hwbits + row * 801 ri->ri_yscale); 802 delta = ri->ri_delta; 803 } 804 805 while (num--) { 806 for (cnt = np; cnt; cnt--) { 807 for (i = 0; i < 8; i++) { 808 dp[i] = clr; 809 if (ri->ri_hwbits) 810 hp[i] = clr; 811 } 812 dp += 8; 813 if (ri->ri_hwbits) 814 hp += 8; 815 } 816 817 for (cnt = nw; cnt; cnt--) { 818 *(int32_t *)dp = clr; 819 DELTA(dp, 4, int32_t *); 820 if (ri->ri_hwbits) { 821 *(int32_t *)hp = clr; 822 DELTA(hp, 4, int32_t *); 823 } 824 } 825 826 DELTA(dp, delta, int32_t *); 827 if (ri->ri_hwbits) 828 DELTA(hp, delta, int32_t *); 829 } 830 } 831 832 /* 833 * Actually turn the cursor on or off. This does the dirty work for 834 * rasops_cursor(). 835 */ 836 static void 837 rasops_do_cursor(ri) 838 struct rasops_info *ri; 839 { 840 int full1, height, cnt, slop1, slop2, row, col; 841 u_char *dp, *rp, *hrp, *hp; 842 843 hrp = hp = NULL; 844 845 row = ri->ri_crow; 846 col = ri->ri_ccol; 847 848 rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; 849 if (ri->ri_hwbits) 850 hrp = ri->ri_hwbits + row * ri->ri_yscale + col 851 * ri->ri_xscale; 852 height = ri->ri_font->fontheight; 853 slop1 = (4 - ((long)rp & 3)) & 3; 854 855 if (slop1 > ri->ri_xscale) 856 slop1 = ri->ri_xscale; 857 858 slop2 = (ri->ri_xscale - slop1) & 3; 859 full1 = (ri->ri_xscale - slop1 - slop2) >> 2; 860 861 if ((slop1 | slop2) == 0) { 862 /* A common case */ 863 while (height--) { 864 dp = rp; 865 rp += ri->ri_stride; 866 if (ri->ri_hwbits) { 867 hp = hrp; 868 hrp += ri->ri_stride; 869 } 870 871 for (cnt = full1; cnt; cnt--) { 872 *(int32_t *)dp ^= ~0; 873 dp += 4; 874 if (ri->ri_hwbits) { 875 *(int32_t *)hp ^= ~0; 876 hp += 4; 877 } 878 } 879 } 880 } else { 881 /* XXX this is stupid.. use masks instead */ 882 while (height--) { 883 dp = rp; 884 rp += ri->ri_stride; 885 if (ri->ri_hwbits) { 886 hp = hrp; 887 hrp += ri->ri_stride; 888 } 889 890 if (slop1 & 1) { 891 *dp++ ^= ~0; 892 if (ri->ri_hwbits) 893 *hp++ ^= ~0; 894 } 895 896 if (slop1 & 2) { 897 *(int16_t *)dp ^= ~0; 898 dp += 2; 899 if (ri->ri_hwbits) { 900 *(int16_t *)hp ^= ~0; 901 hp += 2; 902 } 903 } 904 905 for (cnt = full1; cnt; cnt--) { 906 *(int32_t *)dp ^= ~0; 907 dp += 4; 908 if (ri->ri_hwbits) { 909 *(int32_t *)hp ^= ~0; 910 hp += 4; 911 } 912 } 913 914 if (slop2 & 1) { 915 *dp++ ^= ~0; 916 if (ri->ri_hwbits) 917 *hp++ ^= ~0; 918 } 919 920 if (slop2 & 2) { 921 *(int16_t *)dp ^= ~0; 922 if (ri->ri_hwbits) 923 *(int16_t *)hp ^= ~0; 924 } 925 } 926 } 927 } 928 929 /* 930 * Erase columns. 931 */ 932 void 933 rasops_erasecols(cookie, row, col, num, attr) 934 void *cookie; 935 int row, col, num; 936 long attr; 937 { 938 int n8, height, cnt, slop1, slop2, clr; 939 struct rasops_info *ri; 940 int32_t *rp, *dp, *hrp, *hp; 941 int i; 942 943 ri = (struct rasops_info *)cookie; 944 hrp = hp = NULL; 945 946 #ifdef RASOPS_CLIPPING 947 if ((unsigned)row >= (unsigned)ri->ri_rows) 948 return; 949 950 if (col < 0) { 951 num += col; 952 col = 0; 953 } 954 955 if ((col + num) > ri->ri_cols) 956 num = ri->ri_cols - col; 957 958 if (num <= 0) 959 return; 960 #endif 961 962 num = num * ri->ri_xscale; 963 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale); 964 if (ri->ri_hwbits) 965 hrp = (int32_t *)(ri->ri_hwbits + row*ri->ri_yscale + 966 col*ri->ri_xscale); 967 height = ri->ri_font->fontheight; 968 clr = ri->ri_devcmap[(attr >> 16) & 0xf]; 969 970 /* Don't bother using the full loop for <= 32 pels */ 971 if (num <= 32) { 972 if (((num | ri->ri_xscale) & 3) == 0) { 973 /* Word aligned blt */ 974 num >>= 2; 975 976 while (height--) { 977 dp = rp; 978 DELTA(rp, ri->ri_stride, int32_t *); 979 if (ri->ri_hwbits) { 980 hp = hrp; 981 DELTA(hrp, ri->ri_stride, int32_t *); 982 } 983 984 for (cnt = num; cnt; cnt--) { 985 *dp++ = clr; 986 if (ri->ri_hwbits) 987 *hp++ = clr; 988 } 989 } 990 } else if (((num | ri->ri_xscale) & 1) == 0) { 991 /* 992 * Halfword aligned blt. This is needed so the 993 * 15/16 bit ops can use this function. 994 */ 995 num >>= 1; 996 997 while (height--) { 998 dp = rp; 999 DELTA(rp, ri->ri_stride, int32_t *); 1000 if (ri->ri_hwbits) { 1001 hp = hrp; 1002 DELTA(hrp, ri->ri_stride, int32_t *); 1003 } 1004 1005 for (cnt = num; cnt; cnt--) { 1006 *(int16_t *)dp = clr; 1007 DELTA(dp, 2, int32_t *); 1008 if (ri->ri_hwbits) { 1009 *(int16_t *)hp = clr; 1010 DELTA(hp, 2, int32_t *); 1011 } 1012 } 1013 } 1014 } else { 1015 while (height--) { 1016 dp = rp; 1017 DELTA(rp, ri->ri_stride, int32_t *); 1018 if (ri->ri_hwbits) { 1019 hp = hrp; 1020 DELTA(hrp, ri->ri_stride, int32_t *); 1021 } 1022 1023 for (cnt = num; cnt; cnt--) { 1024 *(u_char *)dp = clr; 1025 DELTA(dp, 1, int32_t *); 1026 if (ri->ri_hwbits) { 1027 *(u_char *)hp = clr; 1028 DELTA(hp, 1, int32_t *); 1029 } 1030 } 1031 } 1032 } 1033 1034 return; 1035 } 1036 1037 slop1 = (4 - ((long)rp & 3)) & 3; 1038 slop2 = (num - slop1) & 3; 1039 num -= slop1 + slop2; 1040 n8 = num >> 5; 1041 num = (num >> 2) & 7; 1042 1043 while (height--) { 1044 dp = rp; 1045 DELTA(rp, ri->ri_stride, int32_t *); 1046 if (ri->ri_hwbits) { 1047 hp = hrp; 1048 DELTA(hrp, ri->ri_stride, int32_t *); 1049 } 1050 1051 /* Align span to 4 bytes */ 1052 if (slop1 & 1) { 1053 *(u_char *)dp = clr; 1054 DELTA(dp, 1, int32_t *); 1055 if (ri->ri_hwbits) { 1056 *(u_char *)hp = clr; 1057 DELTA(hp, 1, int32_t *); 1058 } 1059 } 1060 1061 if (slop1 & 2) { 1062 *(int16_t *)dp = clr; 1063 DELTA(dp, 2, int32_t *); 1064 if (ri->ri_hwbits) { 1065 *(int16_t *)hp = clr; 1066 DELTA(hp, 2, int32_t *); 1067 } 1068 } 1069 1070 /* Write 32 bytes per loop */ 1071 for (cnt = n8; cnt; cnt--) { 1072 for (i = 0; i < 8; i++) { 1073 dp[i] = clr; 1074 if (ri->ri_hwbits) 1075 hp[i] = clr; 1076 } 1077 dp += 8; 1078 if (ri->ri_hwbits) 1079 hp += 8; 1080 } 1081 1082 /* Write 4 bytes per loop */ 1083 for (cnt = num; cnt; cnt--) { 1084 *dp++ = clr; 1085 if (ri->ri_hwbits) 1086 *hp++ = clr; 1087 } 1088 1089 /* Write unaligned trailing slop */ 1090 if (slop2 & 1) { 1091 *(u_char *)dp = clr; 1092 DELTA(dp, 1, int32_t *); 1093 if (ri->ri_hwbits) { 1094 *(u_char *)hp = clr; 1095 DELTA(hp, 1, int32_t *); 1096 } 1097 } 1098 1099 if (slop2 & 2) { 1100 *(int16_t *)dp = clr; 1101 if (ri->ri_hwbits) 1102 *(int16_t *)hp = clr; 1103 } 1104 } 1105 } 1106
Indexes created Tue Sep 30 11:09:46 GMT 2025