1 /* $NetBSD: amidisplaycc.c,v 1.16 2004/12/13 02:14:13 chs Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 Jukka Andberg. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: amidisplaycc.c,v 1.16 2004/12/13 02:14:13 chs Exp $"); 32 33 /* 34 * wscons interface to amiga custom chips. Contains the necessary functions 35 * to render text on bitmapped screens. Uses the functions defined in 36 * grfabs_reg.h for display creation/destruction and low level setup. 37 * 38 * For each virtual terminal a new screen ('view') is allocated. 39 * Also one more is allocated for the mapped screen on demand. 40 */ 41 42 #include "amidisplaycc.h" 43 #include "grfcc.h" 44 #include "view.h" 45 #include "opt_amigaccgrf.h" 46 47 #if NAMIDISPLAYCC>0 48 49 #include <sys/param.h> 50 #include <sys/types.h> 51 #include <sys/device.h> 52 #include <sys/malloc.h> 53 #include <sys/systm.h> 54 55 #include <sys/conf.h> 56 57 #include <amiga/dev/grfabs_reg.h> 58 #include <amiga/dev/viewioctl.h> 59 #include <amiga/amiga/device.h> 60 #include <dev/wscons/wsconsio.h> 61 #include <dev/rcons/raster.h> 62 #include <dev/wscons/wscons_raster.h> 63 #include <dev/wscons/wsdisplayvar.h> 64 #include <dev/cons.h> 65 #include <dev/wsfont/wsfont.h> 66 67 #include <machine/stdarg.h> 68 69 /* These can be lowered if you are sure you dont need that much colors. */ 70 #define MAXDEPTH 8 71 #define MAXROWS 128 72 73 #define ADJUSTCOLORS 74 75 #define MAXCOLORS (1<<MAXDEPTH) 76 77 struct amidisplaycc_screen; 78 struct amidisplaycc_softc 79 { 80 struct device dev; 81 82 struct amidisplaycc_screen * currentscreen; 83 84 /* display turned on? */ 85 int ison; 86 87 /* stuff relating to the mapped screen */ 88 view_t * gfxview; 89 int gfxwidth; 90 int gfxheight; 91 int gfxdepth; 92 int gfxon; 93 }; 94 95 96 /* 97 * Configuration stuff. 98 */ 99 100 static int amidisplaycc_match(struct device *, struct cfdata *, void *); 101 static void amidisplaycc_attach(struct device *, struct device *, void *); 102 103 CFATTACH_DECL(amidisplaycc, sizeof(struct amidisplaycc_softc), 104 amidisplaycc_match, amidisplaycc_attach, NULL, NULL); 105 106 static int amidisplaycc_attached; 107 108 cons_decl(amidisplaycc_); 109 110 /* end of configuration stuff */ 111 112 /* private utility functions */ 113 114 static int amidisplaycc_setvideo(struct amidisplaycc_softc *, int); 115 116 static int amidisplaycc_setemulcmap(struct amidisplaycc_screen *, 117 struct wsdisplay_cmap *); 118 119 static int amidisplaycc_cmapioctl(view_t *, u_long, struct wsdisplay_cmap *); 120 static int amidisplaycc_setcmap(view_t *, struct wsdisplay_cmap *); 121 static int amidisplaycc_getcmap(view_t *, struct wsdisplay_cmap *); 122 static int amidisplaycc_gfxscreen(struct amidisplaycc_softc *, int); 123 124 static int amidisplaycc_setfont(struct amidisplaycc_screen *, const char *); 125 static const struct wsdisplay_font * amidisplaycc_getbuiltinfont(void); 126 127 static void dprintf(const char *fmt, ...); 128 129 /* end of private utility functions */ 130 131 /* emulops for wscons */ 132 void amidisplaycc_cursor(void *, int, int, int); 133 int amidisplaycc_mapchar(void *, int, unsigned int *); 134 void amidisplaycc_putchar(void *, int, int, u_int, long); 135 void amidisplaycc_copycols(void *, int, int, int, int); 136 void amidisplaycc_erasecols(void *, int, int, int, long); 137 void amidisplaycc_copyrows(void *, int, int, int); 138 void amidisplaycc_eraserows(void *, int, int, long); 139 int amidisplaycc_allocattr(void *, int, int, int, long *); 140 /* end of emulops for wscons */ 141 142 143 /* accessops for wscons */ 144 int amidisplaycc_ioctl(void *, u_long, caddr_t, int, struct proc *); 145 paddr_t amidisplaycc_mmap(void *, off_t, int); 146 int amidisplaycc_alloc_screen(void *, const struct wsscreen_descr *, void **, 147 int *, int *, long *); 148 void amidisplaycc_free_screen( void *, void *); 149 int amidisplaycc_show_screen(void *, void *, int, void (*)(void *, int, int), 150 void *); 151 int amidisplaycc_load_font(void *, void *, struct wsdisplay_font *); 152 void amidisplaycc_pollc(void *, int); 153 /* end of accessops for wscons */ 154 155 /* 156 * These structures are passed to wscons, and they contain the 157 * display-specific callback functions. 158 */ 159 160 const struct wsdisplay_accessops amidisplaycc_accessops = { 161 amidisplaycc_ioctl, 162 amidisplaycc_mmap, 163 amidisplaycc_alloc_screen, 164 amidisplaycc_free_screen, 165 amidisplaycc_show_screen, 166 amidisplaycc_load_font, 167 amidisplaycc_pollc 168 }; 169 170 const struct wsdisplay_emulops amidisplaycc_emulops = { 171 amidisplaycc_cursor, 172 amidisplaycc_mapchar, 173 amidisplaycc_putchar, 174 amidisplaycc_copycols, 175 amidisplaycc_erasecols, 176 amidisplaycc_copyrows, 177 amidisplaycc_eraserows, 178 amidisplaycc_allocattr 179 }; 180 181 /* add some of our own data to the wsscreen_descr */ 182 struct amidisplaycc_screen_descr { 183 struct wsscreen_descr wsdescr; 184 int depth; 185 }; 186 187 /* 188 * List of supported screenmodes. Almost anything can be given here. 189 */ 190 191 #define ADCC_SCREEN(name, width, height, depth, fontwidth, fontheight) \ 192 /* CONSTCOND */ \ 193 {{ \ 194 name, \ 195 width / fontwidth, \ 196 height / fontheight, \ 197 &amidisplaycc_emulops, fontwidth, fontheight, \ 198 (depth > 1 ? WSSCREEN_WSCOLORS : 0) | WSSCREEN_REVERSE | \ 199 WSSCREEN_HILIT | WSSCREEN_UNDERLINE }, \ 200 depth } 201 202 /* 203 * Screen types. 204 * 205 * The first in list is used for the console screen. 206 * A suitable screen mode is guessed for it by looking 207 * at the GRF_* options. 208 */ 209 struct amidisplaycc_screen_descr amidisplaycc_screentab[] = { 210 /* name, width, height, depth, fontwidth==8, fontheight */ 211 212 #if defined(GRF_PAL) && !defined(GRF_NTSC) 213 ADCC_SCREEN("default", 640, 512, 3, 8, 8), 214 #else 215 ADCC_SCREEN("default", 640, 400, 3, 8, 8), 216 #endif 217 ADCC_SCREEN("80x50", 640, 400, 3, 8, 8), 218 ADCC_SCREEN("80x40", 640, 400, 3, 8, 10), 219 ADCC_SCREEN("80x25", 640, 400, 3, 8, 16), 220 ADCC_SCREEN("80x24", 640, 192, 3, 8, 8), 221 222 ADCC_SCREEN("80x64", 640, 512, 3, 8, 8), 223 ADCC_SCREEN("80x51", 640, 510, 3, 8, 10), 224 ADCC_SCREEN("80x32", 640, 512, 3, 8, 16), 225 ADCC_SCREEN("80x31", 640, 248, 3, 8, 8), 226 227 ADCC_SCREEN("640x400x1", 640, 400, 1, 8, 8), 228 ADCC_SCREEN("640x400x2", 640, 400, 2, 8, 8), 229 ADCC_SCREEN("640x400x3", 640, 400, 3, 8, 8), 230 231 ADCC_SCREEN("640x200x1", 640, 200, 1, 8, 8), 232 ADCC_SCREEN("640x200x2", 640, 200, 2, 8, 8), 233 ADCC_SCREEN("640x200x3", 640, 200, 3, 8, 8), 234 }; 235 236 #define ADCC_SCREENPTR(index) &amidisplaycc_screentab[index].wsdescr 237 const struct wsscreen_descr *amidisplaycc_screens[] = { 238 ADCC_SCREENPTR(0), 239 ADCC_SCREENPTR(1), 240 ADCC_SCREENPTR(2), 241 ADCC_SCREENPTR(3), 242 ADCC_SCREENPTR(4), 243 ADCC_SCREENPTR(5), 244 ADCC_SCREENPTR(6), 245 ADCC_SCREENPTR(7), 246 ADCC_SCREENPTR(8), 247 ADCC_SCREENPTR(9), 248 ADCC_SCREENPTR(10), 249 ADCC_SCREENPTR(11), 250 ADCC_SCREENPTR(12), 251 ADCC_SCREENPTR(13), 252 ADCC_SCREENPTR(14), 253 }; 254 255 #define NELEMS(arr) (sizeof(arr)/sizeof((arr)[0])) 256 257 /* 258 * This structure also is passed to wscons. It contains pointers 259 * to the available display modes. 260 */ 261 262 const struct wsscreen_list amidisplaycc_screenlist = { 263 sizeof(amidisplaycc_screens)/sizeof(amidisplaycc_screens[0]), 264 amidisplaycc_screens 265 }; 266 267 /* 268 * Our own screen structure. One will be created for each screen. 269 */ 270 271 struct amidisplaycc_screen 272 { 273 struct amidisplaycc_softc *device; 274 275 int isconsole; 276 int isvisible; 277 view_t * view; 278 279 int ncols; 280 int nrows; 281 282 int cursorrow; 283 int cursorcol; 284 285 /* Active bitplanes for each character row. */ 286 int rowmasks[MAXROWS]; 287 288 /* Mapping of colors to screen colors. */ 289 int colormap[MAXCOLORS]; 290 291 /* Copies of display parameters for convenience */ 292 int width; 293 int height; 294 int depth; 295 296 int widthbytes; /* bytes_per_row */ 297 int linebytes; /* widthbytes + row_mod */ 298 int rowbytes; /* linebytes * fontheight */ 299 300 u_char * planes[MAXDEPTH]; 301 302 const struct wsdisplay_font * wsfont; 303 int wsfontcookie; /* if -1, builtin font */ 304 int fontwidth; 305 int fontheight; 306 }; 307 308 typedef struct amidisplaycc_screen adccscr_t; 309 310 /* 311 * Need one statically allocated screen for early init. 312 * The rest are mallocated when needed. 313 */ 314 adccscr_t amidisplaycc_consolescreen; 315 316 /* 317 * Default palettes for 2, 4 and 8 color emulation displays. 318 */ 319 320 /* black, grey */ 321 static u_char pal2red[] = { 0x00, 0xaa }; 322 static u_char pal2grn[] = { 0x00, 0xaa }; 323 static u_char pal2blu[] = { 0x00, 0xaa }; 324 325 /* black, red, green, grey */ 326 static u_char pal4red[] = { 0x00, 0xaa, 0x00, 0xaa }; 327 static u_char pal4grn[] = { 0x00, 0x00, 0xaa, 0xaa }; 328 static u_char pal4blu[] = { 0x00, 0x00, 0x00, 0xaa }; 329 330 /* black, red, green, brown, blue, magenta, cyan, grey */ 331 static u_char pal8red[] = { 0x00, 0xaa, 0x00, 0xaa, 0x00, 0xaa, 0x00, 0xaa}; 332 static u_char pal8grn[] = { 0x00, 0x00, 0xaa, 0xaa, 0x00, 0x00, 0xaa, 0xaa}; 333 static u_char pal8blu[] = { 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa, 0xaa, 0xaa}; 334 335 static struct wsdisplay_cmap pal2 = { 0, 2, pal2red, pal2grn, pal2blu }; 336 static struct wsdisplay_cmap pal4 = { 0, 4, pal4red, pal4grn, pal4blu }; 337 static struct wsdisplay_cmap pal8 = { 0, 8, pal8red, pal8grn, pal8blu }; 338 339 #ifdef GRF_AGA 340 extern int aga_enable; 341 #else 342 static int aga_enable = 0; 343 #endif 344 345 /* 346 * This gets called at console init to determine the priority of 347 * this console device. 348 * 349 * Of course pointers to this and other functions must present 350 * in constab[] in conf.c for this to work. 351 */ 352 void 353 amidisplaycc_cnprobe(struct consdev *cd) 354 { 355 cd->cn_pri = CN_INTERNAL; 356 357 /* 358 * Yeah, real nice. But if we win the console then the wscons system 359 * does the proper initialization. 360 */ 361 cd->cn_dev = NODEV; 362 } 363 364 /* 365 * This gets called if this device is used as the console. 366 */ 367 void 368 amidisplaycc_cninit(struct consdev * cd) 369 { 370 void * cookie; 371 long attr; 372 int x; 373 int y; 374 375 /* Yeah, we got the console! */ 376 377 /* 378 * This will do the basic stuff we also need. 379 */ 380 config_console(); 381 382 grfcc_probe(); 383 384 #if NVIEW>0 385 viewprobe(); 386 #endif 387 388 /* 389 * Set up wscons to handle the details. 390 * It will then call us back when it needs something 391 * display-specific. It will also set up cn_tab properly, 392 * something which we failed to do at amidisplaycc_cnprobe(). 393 */ 394 395 /* 396 * The alloc_screen knows to allocate the first screen statically. 397 */ 398 amidisplaycc_alloc_screen(NULL, &amidisplaycc_screentab[0].wsdescr, 399 &cookie, &x, &y, &attr); 400 wsdisplay_cnattach(&amidisplaycc_screentab[0].wsdescr, 401 cookie, x, y, attr); 402 } 403 404 static int 405 amidisplaycc_match(struct device *pdp, struct cfdata *cfp, void *auxp) 406 { 407 char *name = auxp; 408 409 if (matchname("amidisplaycc", name) == 0) 410 return (0); 411 412 /* Allow only one of us now. Not sure about that. */ 413 if (amidisplaycc_attached) 414 return (0); 415 416 return 1; 417 } 418 419 /* ARGSUSED */ 420 static void 421 amidisplaycc_attach(struct device *pdp, struct device *dp, void *auxp) 422 { 423 struct wsemuldisplaydev_attach_args waa; 424 struct amidisplaycc_softc * adp; 425 426 amidisplaycc_attached = 1; 427 428 adp = (struct amidisplaycc_softc*)dp; 429 430 grfcc_probe(); 431 432 #if NVIEW>0 433 viewprobe(); 434 #endif 435 436 /* 437 * Attach only at real configuration time. Console init is done at 438 * the amidisplaycc_cninit function above. 439 */ 440 if (adp) { 441 printf(": Amiga custom chip graphics %s", 442 aga_enable ? "(AGA)" : ""); 443 444 if (amidisplaycc_consolescreen.isconsole) { 445 adp->currentscreen = &amidisplaycc_consolescreen; 446 printf(" (console)"); 447 } else 448 adp->currentscreen = NULL; 449 450 printf("\n"); 451 452 adp->ison = 1; 453 454 /* 455 * Mapped screen properties. 456 * Would need a way to configure. 457 */ 458 adp->gfxview = NULL; 459 adp->gfxon = 0; 460 adp->gfxwidth = amidisplaycc_screentab[0].wsdescr.ncols * 461 amidisplaycc_screentab[0].wsdescr.fontwidth; 462 adp->gfxheight = amidisplaycc_screentab[0].wsdescr.nrows * 463 amidisplaycc_screentab[0].wsdescr.fontheight; 464 465 if (aga_enable) 466 adp->gfxdepth = 8; 467 else 468 adp->gfxdepth = 4; 469 470 if (NELEMS(amidisplaycc_screentab) != 471 NELEMS(amidisplaycc_screens)) 472 panic("invalid screen definitions"); 473 474 waa.scrdata = &amidisplaycc_screenlist; 475 waa.console = amidisplaycc_consolescreen.isconsole; 476 waa.accessops = &amidisplaycc_accessops; 477 waa.accesscookie = dp; 478 config_found(dp, &waa, wsemuldisplaydevprint); 479 480 wsfont_init(); 481 } 482 } 483 484 485 /* 486 * Color, bgcolor and style are packed into one long attribute. 487 * These macros are used to create/split the attribute 488 */ 489 490 #define MAKEATTR(fg, bg, mode) (((fg)<<16) | ((bg)<<8) | (mode)) 491 #define ATTRFG(attr) (((attr)>>16) & 255) 492 #define ATTRBG(attr) (((attr)>>8) & 255) 493 #define ATTRMO(attr) ((attr) & 255) 494 495 /* 496 * Called by wscons to draw/clear the cursor. 497 * We do this by xorring the block to the screen. 498 * 499 * This simple implementation will break if the screen is modified 500 * under the cursor before clearing it. 501 */ 502 void 503 amidisplaycc_cursor(void *screen, int on, int row, int col) 504 { 505 adccscr_t * scr; 506 u_char * dst; 507 int i; 508 509 scr = screen; 510 511 if (row < 0 || col < 0 || row >= scr->nrows || col >= scr->ncols) 512 return; 513 514 /* was off, turning off again? */ 515 if (!on && scr->cursorrow == -1 && scr->cursorcol == -1) 516 return; 517 518 /* was on, and turning on again? */ 519 if (on && scr->cursorrow >= 0 && scr->cursorcol >= 0) 520 { 521 /* clear from old location first */ 522 amidisplaycc_cursor (screen, 0, scr->cursorrow, scr->cursorcol); 523 } 524 525 dst = scr->planes[0]; 526 dst += row * scr->rowbytes; 527 dst += col; 528 529 if (on) { 530 scr->cursorrow = row; 531 scr->cursorcol = col; 532 } else { 533 scr->cursorrow = -1; 534 scr->cursorcol = -1; 535 } 536 537 for (i = scr->fontheight ; i > 0 ; i--) { 538 *dst ^= 255; 539 dst += scr->linebytes; 540 } 541 } 542 543 544 /* 545 * This obviously does something important, don't ask me what. 546 */ 547 int 548 amidisplaycc_mapchar(void *screen, int ch, unsigned int *chp) 549 { 550 if (ch > 0 && ch < 256) { 551 *chp = ch; 552 return (5); 553 } 554 *chp = ' '; 555 return (0); 556 } 557 558 /* 559 * Write a character to screen with color / bgcolor / hilite(bold) / 560 * underline / reverse. 561 * Surely could be made faster but I'm not sure if its worth the 562 * effort as scrolling is at least a magnitude slower. 563 */ 564 void 565 amidisplaycc_putchar(void *screen, int row, int col, u_int ch, long attr) 566 { 567 adccscr_t * scr; 568 u_char * dst; 569 u_char * font; 570 571 int fontheight; 572 u_int8_t * fontreal; 573 int fontlow; 574 int fonthigh; 575 576 int bmapoffset; 577 int linebytes; 578 int underline; 579 int fgcolor; 580 int bgcolor; 581 int plane; 582 int depth; 583 int mode; 584 int bold; 585 u_char f; 586 int j; 587 588 scr = screen; 589 590 if (row < 0 || col < 0 || row >= scr->nrows || col >= scr->ncols) 591 return; 592 593 /* Extract the colors from the attribute */ 594 fgcolor = ATTRFG(attr); 595 bgcolor = ATTRBG(attr); 596 mode = ATTRMO(attr); 597 598 /* Translate to screen colors */ 599 fgcolor = scr->colormap[fgcolor]; 600 bgcolor = scr->colormap[bgcolor]; 601 602 if (mode & WSATTR_REVERSE) { 603 j = fgcolor; 604 fgcolor = bgcolor; 605 bgcolor = j; 606 } 607 608 bold = (mode & WSATTR_HILIT) > 0; 609 underline = (mode & WSATTR_UNDERLINE) > 0; 610 611 fontreal = scr->wsfont->data; 612 fontlow = scr->wsfont->firstchar; 613 fonthigh = fontlow + scr->wsfont->numchars - 1; 614 615 fontheight = min(scr->fontheight, scr->wsfont->fontheight); 616 depth = scr->depth; 617 linebytes = scr->linebytes; 618 619 if (ch < fontlow || ch > fonthigh) 620 ch = fontlow; 621 622 /* Find the location where the wanted char is in the font data */ 623 fontreal += scr->wsfont->fontheight * (ch - fontlow); 624 625 bmapoffset = row * scr->rowbytes + col; 626 627 scr->rowmasks[row] |= fgcolor | bgcolor; 628 629 for (plane = 0 ; plane < depth ; plane++) { 630 dst = scr->planes[plane] + bmapoffset; 631 632 if (fgcolor & 1) { 633 if (bgcolor & 1) { 634 /* fg=on bg=on (fill) */ 635 636 for (j = 0 ; j < fontheight ; j++) { 637 *dst = 255; 638 dst += linebytes; 639 } 640 } else { 641 /* fg=on bg=off (normal) */ 642 643 font = fontreal; 644 for (j = 0 ; j < fontheight ; j++) { 645 f = *(font++); 646 f |= f >> bold; 647 *dst = f; 648 dst += linebytes; 649 } 650 651 if (underline) 652 *(dst - linebytes) = 255; 653 } 654 } else { 655 if (bgcolor & 1) { 656 /* fg=off bg=on (inverted) */ 657 658 font = fontreal; 659 for (j = 0 ; j < fontheight ; j++) { 660 f = *(font++); 661 f |= f >> bold; 662 *dst = ~f; 663 dst += linebytes; 664 } 665 666 if (underline) 667 *(dst - linebytes) = 0; 668 } else { 669 /* fg=off bg=off (clear) */ 670 671 for (j = 0 ; j < fontheight ; j++) { 672 *dst = 0; 673 dst += linebytes; 674 } 675 } 676 } 677 fgcolor >>= 1; 678 bgcolor >>= 1; 679 } 680 } 681 682 /* 683 * Copy characters on a row to another position on the same row. 684 */ 685 686 void 687 amidisplaycc_copycols(void *screen, int row, int srccol, int dstcol, int ncols) 688 { 689 adccscr_t * scr; 690 u_char * src; 691 u_char * dst; 692 693 int bmapoffset; 694 int linebytes; 695 int depth; 696 int plane; 697 int i; 698 int j; 699 700 scr = screen; 701 702 if (srccol < 0 || srccol + ncols > scr->ncols || 703 dstcol < 0 || dstcol + ncols > scr->ncols || 704 row < 0 || row >= scr->nrows) 705 return; 706 707 depth = scr->depth; 708 linebytes = scr->linebytes; 709 bmapoffset = row * scr->rowbytes; 710 711 for (plane = 0 ; plane < depth ; plane++) { 712 src = scr->planes[plane] + bmapoffset; 713 714 for (j = 0 ; j < scr->fontheight ; j++) { 715 dst = src; 716 717 if (srccol < dstcol) { 718 719 for (i = ncols - 1 ; i >= 0 ; i--) 720 dst[dstcol + i] = src[srccol + i]; 721 722 } else { 723 724 for (i = 0 ; i < ncols ; i++) 725 dst[dstcol + i] = src[srccol + i]; 726 727 } 728 src += linebytes; 729 } 730 } 731 } 732 733 /* 734 * Erase part of a row. 735 */ 736 737 void 738 amidisplaycc_erasecols(void *screen, int row, int startcol, int ncols, 739 long attr) 740 { 741 adccscr_t * scr; 742 u_char * dst; 743 744 int bmapoffset; 745 int linebytes; 746 int bgcolor; 747 int depth; 748 int plane; 749 int fill; 750 int j; 751 752 scr = screen; 753 754 if (row < 0 || row >= scr->nrows || 755 startcol < 0 || startcol + ncols > scr->ncols) 756 return; 757 758 depth = scr->depth; 759 linebytes = scr->linebytes; 760 bmapoffset = row * scr->rowbytes + startcol; 761 762 /* Erase will be done using the set background color. */ 763 bgcolor = ATTRBG(attr); 764 bgcolor = scr->colormap[bgcolor]; 765 766 for(plane = 0 ; plane < depth ; plane++) { 767 768 fill = (bgcolor & 1) ? 255 : 0; 769 770 dst = scr->planes[plane] + bmapoffset; 771 772 for (j = 0 ; j < scr->fontheight ; j++) { 773 memset(dst, fill, ncols); 774 dst += linebytes; 775 } 776 } 777 } 778 779 /* 780 * Copy a number of rows to another location on the screen. 781 * Combined with eraserows it can be used to perform operation 782 * also known as 'scrolling'. 783 */ 784 785 void 786 amidisplaycc_copyrows(void *screen, int srcrow, int dstrow, int nrows) 787 { 788 adccscr_t * scr; 789 u_char * src; 790 u_char * dst; 791 792 int srcbmapoffset; 793 int dstbmapoffset; 794 int widthbytes; 795 int fontheight; 796 int linebytes; 797 u_int copysize; 798 int rowdelta; 799 int rowbytes; 800 int srcmask; 801 int dstmask; 802 int bmdelta; 803 int depth; 804 int plane; 805 int i; 806 int j; 807 808 scr = screen; 809 810 if (srcrow < 0 || srcrow + nrows > scr->nrows || 811 dstrow < 0 || dstrow + nrows > scr->nrows) 812 return; 813 814 depth = scr->depth; 815 816 widthbytes = scr->widthbytes; 817 rowbytes = scr->rowbytes; 818 linebytes = scr->linebytes; 819 fontheight = scr->fontheight; 820 821 srcbmapoffset = rowbytes * srcrow; 822 dstbmapoffset = rowbytes * dstrow; 823 824 if (srcrow < dstrow) { 825 /* Move data downwards, need to copy from down to up */ 826 bmdelta = -rowbytes; 827 rowdelta = -1; 828 829 srcbmapoffset += rowbytes * (nrows - 1); 830 srcrow += nrows - 1; 831 832 dstbmapoffset += rowbytes * (nrows - 1); 833 dstrow += nrows - 1; 834 } else { 835 /* Move data upwards, copy up to down */ 836 bmdelta = rowbytes; 837 rowdelta = 1; 838 } 839 840 if (widthbytes == linebytes) 841 copysize = rowbytes; 842 else 843 copysize = 0; 844 845 for (j = 0 ; j < nrows ; j++) { 846 /* Need to copy only planes that have data on src or dst */ 847 srcmask = scr->rowmasks[srcrow]; 848 dstmask = scr->rowmasks[dstrow]; 849 scr->rowmasks[dstrow] = srcmask; 850 851 for (plane = 0 ; plane < depth ; plane++) { 852 853 if (srcmask & 1) { 854 /* 855 * Source row has data on this 856 * plane, copy it. 857 */ 858 859 src = scr->planes[plane] + srcbmapoffset; 860 dst = scr->planes[plane] + dstbmapoffset; 861 862 if (copysize > 0) { 863 864 memcpy(dst, src, copysize); 865 866 } else { 867 868 /* 869 * Data not continuous, 870 * must do in pieces 871 */ 872 for (i=0 ; i < fontheight ; i++) { 873 memcpy(dst, src, widthbytes); 874 875 src += linebytes; 876 dst += linebytes; 877 } 878 } 879 } else if (dstmask & 1) { 880 /* 881 * Source plane is empty, but dest is not. 882 * so all we need to is clear it. 883 */ 884 885 dst = scr->planes[plane] + dstbmapoffset; 886 887 if (copysize > 0) { 888 /* Do it all */ 889 bzero(dst, copysize); 890 } else { 891 for (i = 0 ; i < fontheight ; i++) { 892 bzero(dst, widthbytes); 893 dst += linebytes; 894 } 895 } 896 } 897 898 srcmask >>= 1; 899 dstmask >>= 1; 900 } 901 srcbmapoffset += bmdelta; 902 dstbmapoffset += bmdelta; 903 904 srcrow += rowdelta; 905 dstrow += rowdelta; 906 } 907 } 908 909 /* 910 * Erase some rows. 911 */ 912 913 void 914 amidisplaycc_eraserows(void *screen, int row, int nrows, long attr) 915 { 916 adccscr_t * scr; 917 u_char * dst; 918 919 int bmapoffset; 920 int fillsize; 921 int bgcolor; 922 int depth; 923 int plane; 924 int fill; 925 int j; 926 927 int widthbytes; 928 int linebytes; 929 int rowbytes; 930 931 932 scr = screen; 933 934 if (row < 0 || row + nrows > scr->nrows) 935 return; 936 937 depth = scr->depth; 938 widthbytes = scr->widthbytes; 939 linebytes = scr->linebytes; 940 rowbytes = scr->rowbytes; 941 942 bmapoffset = row * rowbytes; 943 944 if (widthbytes == linebytes) 945 fillsize = rowbytes * nrows; 946 else 947 fillsize = 0; 948 949 bgcolor = ATTRBG(attr); 950 bgcolor = scr->colormap[bgcolor]; 951 952 for (j = 0 ; j < nrows ; j++) 953 scr->rowmasks[row+j] = bgcolor; 954 955 for (plane = 0 ; plane < depth ; plane++) { 956 dst = scr->planes[plane] + bmapoffset; 957 fill = (bgcolor & 1) ? 255 : 0; 958 959 if (fillsize > 0) { 960 /* If the rows are continuous, write them all. */ 961 memset(dst, fill, fillsize); 962 } else { 963 for (j = 0 ; j < scr->fontheight * nrows ; j++) { 964 memset(dst, fill, widthbytes); 965 dst += linebytes; 966 } 967 } 968 bgcolor >>= 1; 969 } 970 } 971 972 973 /* 974 * Compose an attribute value from foreground color, 975 * background color, and flags. 976 */ 977 int 978 amidisplaycc_allocattr(void *screen, int fg, int bg, int flags, long *attrp) 979 { 980 adccscr_t * scr; 981 int maxcolor; 982 int newfg; 983 int newbg; 984 985 scr = screen; 986 maxcolor = (1 << scr->view->bitmap->depth) - 1; 987 988 /* Ensure the colors are displayable. */ 989 newfg = fg & maxcolor; 990 newbg = bg & maxcolor; 991 992 #ifdef ADJUSTCOLORS 993 /* 994 * Hack for low-color screens, if background color is nonzero 995 * but would be displayed as one, adjust it. 996 */ 997 if (bg > 0 && newbg == 0) 998 newbg = maxcolor; 999 1000 /* 1001 * If foreground and background colors are different but would 1002 * display the same fix them by modifying the foreground. 1003 */ 1004 if (fg != bg && newfg == newbg) { 1005 if (newbg > 0) 1006 newfg = 0; 1007 else 1008 newfg = maxcolor; 1009 } 1010 #endif 1011 *attrp = MAKEATTR(newfg, newbg, flags); 1012 1013 return (0); 1014 } 1015 1016 int 1017 amidisplaycc_ioctl(void *dp, u_long cmd, caddr_t data, int flag, struct proc *p) 1018 { 1019 struct amidisplaycc_softc *adp; 1020 1021 adp = dp; 1022 1023 if (adp == NULL) { 1024 printf("amidisplaycc_ioctl: adp==NULL\n"); 1025 return (EINVAL); 1026 } 1027 1028 #define UINTDATA (*(u_int*)data) 1029 #define INTDATA (*(int*)data) 1030 #define FBINFO (*(struct wsdisplay_fbinfo*)data) 1031 1032 switch (cmd) 1033 { 1034 case WSDISPLAYIO_GTYPE: 1035 UINTDATA = WSDISPLAY_TYPE_AMIGACC; 1036 return (0); 1037 1038 case WSDISPLAYIO_SVIDEO: 1039 dprintf("amidisplaycc: WSDISPLAYIO_SVIDEO %s\n", 1040 UINTDATA ? "On" : "Off"); 1041 1042 return (amidisplaycc_setvideo(adp, UINTDATA)); 1043 1044 case WSDISPLAYIO_GVIDEO: 1045 dprintf("amidisplaycc: WSDISPLAYIO_GVIDEO\n"); 1046 UINTDATA = adp->ison ? 1047 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF; 1048 1049 return (0); 1050 1051 case WSDISPLAYIO_SMODE: 1052 if (INTDATA == WSDISPLAYIO_MODE_EMUL) 1053 return amidisplaycc_gfxscreen(adp, 0); 1054 if (INTDATA == WSDISPLAYIO_MODE_MAPPED) 1055 return amidisplaycc_gfxscreen(adp, 1); 1056 return (EINVAL); 1057 1058 case WSDISPLAYIO_GINFO: 1059 FBINFO.width = adp->gfxwidth; 1060 FBINFO.height = adp->gfxheight; 1061 FBINFO.depth = adp->gfxdepth; 1062 FBINFO.cmsize = 1 << FBINFO.depth; 1063 return (0); 1064 1065 case WSDISPLAYIO_PUTCMAP: 1066 case WSDISPLAYIO_GETCMAP: 1067 return (amidisplaycc_cmapioctl(adp->gfxview, 1068 cmd, 1069 (struct wsdisplay_cmap*)data)); 1070 } 1071 1072 dprintf("amidisplaycc: unknown ioctl %lx (grp:'%c' num:%d)\n", 1073 (long)cmd, 1074 (char)((cmd&0xff00)>>8), 1075 (int)(cmd&0xff)); 1076 1077 return (EPASSTHROUGH); 1078 1079 #undef UINTDATA 1080 #undef INTDATA 1081 #undef FBINFO 1082 } 1083 1084 1085 /* 1086 * Switch to either emulation (text) or mapped (graphics) mode 1087 * We keep an extra screen for mapped mode so it does not 1088 * interfere with emulation screens. 1089 * 1090 * Once the extra screen is created, it never goes away. 1091 */ 1092 1093 static int 1094 amidisplaycc_gfxscreen(struct amidisplaycc_softc *adp, int on) 1095 { 1096 dimen_t dimension; 1097 1098 dprintf("amidisplaycc: switching to %s mode.\n", 1099 on ? "mapped" : "emul"); 1100 1101 /* Current mode same as requested mode? */ 1102 if ( (on > 0) == (adp->gfxon > 0) ) 1103 return (0); 1104 1105 if (!on) { 1106 /* 1107 * Switch away from mapped mode. If there is 1108 * a emulation screen, switch to it, otherwise 1109 * just try to hide the mapped screen. 1110 */ 1111 adp->gfxon = 0; 1112 if (adp->currentscreen) 1113 grf_display_view(adp->currentscreen->view); 1114 else if (adp->gfxview) 1115 grf_remove_view(adp->gfxview); 1116 1117 return (0); 1118 } 1119 1120 /* switch to mapped mode then */ 1121 1122 if (adp->gfxview == NULL) { 1123 /* First time here, create the screen */ 1124 1125 dimension.width = adp->gfxwidth; 1126 dimension.height = adp->gfxheight; 1127 1128 dprintf("amidisplaycc: preparing mapped screen %dx%dx%d\n", 1129 dimension.width, 1130 dimension.height, 1131 adp->gfxdepth); 1132 1133 adp->gfxview = grf_alloc_view(NULL, 1134 &dimension, 1135 adp->gfxdepth); 1136 } 1137 1138 if (adp->gfxview) { 1139 adp->gfxon = 1; 1140 1141 grf_display_view(adp->gfxview); 1142 } else { 1143 printf("amidisplaycc: failed to make mapped screen\n"); 1144 return (ENOMEM); 1145 } 1146 return (0); 1147 } 1148 1149 /* 1150 * Map the graphics screen. It must have been created before 1151 * by switching to mapped mode by using an ioctl. 1152 */ 1153 paddr_t 1154 amidisplaycc_mmap(void *dp, off_t off, int prot) 1155 { 1156 struct amidisplaycc_softc * adp; 1157 bmap_t * bm; 1158 paddr_t rv; 1159 1160 adp = (struct amidisplaycc_softc*)dp; 1161 1162 /* Check we are in mapped mode */ 1163 if (adp->gfxon == 0 || adp->gfxview == NULL) { 1164 dprintf("amidisplaycc_mmap: Not in mapped mode\n"); 1165 return (paddr_t)(-1); 1166 } 1167 1168 /* 1169 * As we all know by now, we are mapping our special 1170 * screen here so our pretty text consoles are left 1171 * untouched. 1172 */ 1173 1174 bm = adp->gfxview->bitmap; 1175 1176 /* Check that the offset is valid */ 1177 if (off < 0 || off >= bm->depth * bm->bytes_per_row * bm->rows) { 1178 dprintf("amidisplaycc_mmap: Offset out of range\n"); 1179 return (paddr_t)(-1); 1180 } 1181 1182 rv = (paddr_t)bm->hardware_address; 1183 rv += off; 1184 1185 return (rv >> PGSHIFT); 1186 } 1187 1188 1189 /* 1190 * Create a new screen. 1191 * NULL dp signifies console and then memory is allocated statically 1192 * and the screen is automatically displayed. 1193 * 1194 * A font with suitable size is searched and if not found 1195 * the builtin 8x8 font is used. 1196 * 1197 * There are separate default palettes for 2, 4 and 8+ color 1198 * screens. 1199 */ 1200 1201 int 1202 amidisplaycc_alloc_screen(void *dp, const struct wsscreen_descr *screenp, 1203 void **cookiep, int *curxp, int *curyp, 1204 long *defattrp) 1205 { 1206 const struct amidisplaycc_screen_descr * adccscreenp; 1207 struct amidisplaycc_screen * scr; 1208 struct amidisplaycc_softc * adp; 1209 view_t * view; 1210 1211 dimen_t dimension; 1212 int fontheight; 1213 int fontwidth; 1214 int maxcolor; 1215 int depth; 1216 int i; 1217 int j; 1218 1219 adccscreenp = (const struct amidisplaycc_screen_descr *)screenp; 1220 depth = adccscreenp->depth; 1221 1222 adp = dp; 1223 1224 maxcolor = (1 << depth) - 1; 1225 1226 /* Sanity checks because of fixed buffers */ 1227 if (depth > MAXDEPTH || maxcolor >= MAXCOLORS) 1228 return (ENOMEM); 1229 if (screenp->nrows > MAXROWS) 1230 return (ENOMEM); 1231 1232 fontwidth = screenp->fontwidth; 1233 fontheight = screenp->fontheight; 1234 1235 /* 1236 * The screen size is defined in characters. 1237 * Calculate the pixel size using the font size. 1238 */ 1239 1240 dimension.width = screenp->ncols * fontwidth; 1241 dimension.height = screenp->nrows * fontheight; 1242 1243 view = grf_alloc_view(NULL, &dimension, depth); 1244 if (view == NULL) 1245 return (ENOMEM); 1246 1247 /* 1248 * First screen gets the statically allocated console screen. 1249 * Others are allocated dynamically. 1250 */ 1251 if (adp == NULL) { 1252 scr = &amidisplaycc_consolescreen; 1253 if (scr->isconsole) 1254 panic("more than one console?"); 1255 1256 scr->isconsole = 1; 1257 } else { 1258 scr = malloc(sizeof(adccscr_t), M_DEVBUF, M_WAITOK); 1259 bzero(scr, sizeof(adccscr_t)); 1260 } 1261 1262 scr->view = view; 1263 1264 scr->ncols = screenp->ncols; 1265 scr->nrows = screenp->nrows; 1266 1267 /* Copies of most used values */ 1268 scr->width = dimension.width; 1269 scr->height = dimension.height; 1270 scr->depth = depth; 1271 scr->widthbytes = view->bitmap->bytes_per_row; 1272 scr->linebytes = scr->widthbytes + view->bitmap->row_mod; 1273 scr->rowbytes = scr->linebytes * fontheight; 1274 1275 scr->device = adp; 1276 1277 1278 /* 1279 * Try to find a suitable font. 1280 * Avoid everything but the builtin font for console screen. 1281 * Builtin font is used if no other is found, even if it 1282 * has the wrong size. 1283 */ 1284 1285 KASSERT(fontwidth == 8); 1286 1287 scr->wsfont = NULL; 1288 scr->wsfontcookie = -1; 1289 scr->fontwidth = fontwidth; 1290 scr->fontheight = fontheight; 1291 1292 if (adp) 1293 amidisplaycc_setfont(scr, NULL); 1294 1295 if (scr->wsfont == NULL) 1296 { 1297 scr->wsfont = amidisplaycc_getbuiltinfont(); 1298 scr->wsfontcookie = -1; 1299 } 1300 1301 KASSERT(scr->wsfont); 1302 KASSERT(scr->wsfont->stride == 1); 1303 1304 for (i = 0 ; i < depth ; i++) { 1305 scr->planes[i] = view->bitmap->plane[i]; 1306 } 1307 1308 for (i = 0 ; i < MAXROWS ; i++) 1309 scr->rowmasks[i] = 0; 1310 1311 /* Simple one-to-one mapping for most colors */ 1312 for (i = 0 ; i < MAXCOLORS ; i++) 1313 scr->colormap[i] = i; 1314 1315 /* 1316 * Arrange the most used pens to quickest colors. 1317 * The default color for given depth is (1<<depth)-1. 1318 * It is assumed it is used most and it is mapped to 1319 * color that can be drawn by writing data to one bitplane 1320 * only. 1321 * So map colors 3->2, 7->4, 15->8 and so on. 1322 */ 1323 for (i = 2 ; i < MAXCOLORS ; i *= 2) { 1324 j = i * 2 - 1; 1325 1326 if (j < MAXCOLORS) { 1327 scr->colormap[i] = j; 1328 scr->colormap[j] = i; 1329 } 1330 } 1331 1332 /* 1333 * Set the default colormap. 1334 */ 1335 if (depth == 1) 1336 amidisplaycc_setemulcmap(scr, &pal2); 1337 else if (depth == 2) 1338 amidisplaycc_setemulcmap(scr, &pal4); 1339 else 1340 amidisplaycc_setemulcmap(scr, &pal8); 1341 1342 *cookiep = scr; 1343 1344 /* cursor initially at top left */ 1345 scr->cursorrow = -1; 1346 scr->cursorcol = -1; 1347 *curxp = 0; 1348 *curyp = 0; 1349 amidisplaycc_cursor(scr, 1, *curxp, *curyp); 1350 1351 *defattrp = MAKEATTR(maxcolor, 0, 0); 1352 1353 /* Show the console automatically */ 1354 if (adp == NULL) 1355 grf_display_view(scr->view); 1356 1357 if (adp) { 1358 dprintf("amidisplaycc: allocated screen; %dx%dx%d; font=%s\n", 1359 dimension.width, 1360 dimension.height, 1361 depth, 1362 scr->wsfont->name); 1363 } 1364 1365 return (0); 1366 } 1367 1368 1369 /* 1370 * Destroy a screen. 1371 */ 1372 1373 void 1374 amidisplaycc_free_screen(void *dp, void *screen) 1375 { 1376 struct amidisplaycc_screen * scr; 1377 struct amidisplaycc_softc * adp; 1378 1379 scr = screen; 1380 adp = (struct amidisplaycc_softc*)dp; 1381 1382 if (scr == NULL) 1383 return; 1384 1385 /* Free the used font */ 1386 if (scr->wsfont && scr->wsfontcookie != -1) 1387 wsfont_unlock(scr->wsfontcookie); 1388 scr->wsfont = NULL; 1389 scr->wsfontcookie = -1; 1390 1391 if (adp->currentscreen == scr) 1392 adp->currentscreen = NULL; 1393 1394 if (scr->view) 1395 grf_free_view(scr->view); 1396 scr->view = NULL; 1397 1398 /* Take care not to free the statically allocated console screen */ 1399 if (scr != &amidisplaycc_consolescreen) { 1400 free(scr, M_DEVBUF); 1401 } 1402 } 1403 1404 /* 1405 * Switch to another vt. Switch is always made immediately. 1406 */ 1407 1408 /* ARGSUSED2 */ 1409 int 1410 amidisplaycc_show_screen(void *dp, void *screen, int waitok, 1411 void (*cb) (void *, int, int), void *cbarg) 1412 { 1413 adccscr_t *scr; 1414 struct amidisplaycc_softc *adp; 1415 1416 adp = (struct amidisplaycc_softc*)dp; 1417 scr = screen; 1418 1419 if (adp == NULL) { 1420 dprintf("amidisplaycc_show_screen: adp==NULL\n"); 1421 return (EINVAL); 1422 } 1423 if (scr == NULL) { 1424 dprintf("amidisplaycc_show_screen: scr==NULL\n"); 1425 return (EINVAL); 1426 } 1427 1428 if (adp->gfxon) { 1429 dprintf("amidisplaycc: Screen shift while in gfx mode?"); 1430 adp->gfxon = 0; 1431 } 1432 1433 adp->currentscreen = scr; 1434 adp->ison = 1; 1435 1436 grf_display_view(scr->view); 1437 1438 return (0); 1439 } 1440 1441 /* 1442 * Load/set a font. 1443 * 1444 * Only setting is supported, as the wsfont pseudo-device can 1445 * handle the loading of fonts for us. 1446 */ 1447 int 1448 amidisplaycc_load_font(void *dp, void *cookie, struct wsdisplay_font *font) 1449 { 1450 struct amidisplaycc_softc * adp; 1451 struct amidisplaycc_screen * scr; 1452 1453 adp = dp; 1454 scr = cookie; 1455 1456 KASSERT(adp); 1457 KASSERT(scr); 1458 KASSERT(font); 1459 KASSERT(font->name); 1460 1461 if (font->data) 1462 { 1463 /* request to load the font, not supported */ 1464 return (EINVAL); 1465 } 1466 else 1467 { 1468 /* request to use the given font on this screen */ 1469 return amidisplaycc_setfont(scr, font->name); 1470 } 1471 } 1472 1473 /* 1474 * Set display on/off. 1475 */ 1476 static int 1477 amidisplaycc_setvideo(struct amidisplaycc_softc *adp, int mode) 1478 { 1479 view_t * view; 1480 1481 if (adp == NULL) { 1482 dprintf("amidisplaycc_setvideo: adp==NULL\n"); 1483 return (EINVAL); 1484 } 1485 if (adp->currentscreen == NULL) { 1486 dprintf("amidisplaycc_setvideo: adp->currentscreen==NULL\n"); 1487 return (EINVAL); 1488 } 1489 1490 /* select graphics or emulation screen */ 1491 if (adp->gfxon && adp->gfxview) 1492 view = adp->gfxview; 1493 else 1494 view = adp->currentscreen->view; 1495 1496 if (mode) { 1497 /* on */ 1498 1499 grf_display_view(view); 1500 dprintf("amidisplaycc: video is now on\n"); 1501 adp->ison = 1; 1502 1503 } else { 1504 /* off */ 1505 1506 grf_remove_view(view); 1507 dprintf("amidisplaycc: video is now off\n"); 1508 adp->ison = 0; 1509 } 1510 1511 return (0); 1512 } 1513 1514 /* 1515 * Handle the WSDISPLAY_[PUT/GET]CMAP ioctls. 1516 * Just handle the copying of data to/from userspace and 1517 * let the functions amidisplaycc_setcmap and amidisplaycc_putcmap 1518 * do the real work. 1519 */ 1520 1521 static int 1522 amidisplaycc_cmapioctl(view_t *view, u_long cmd, struct wsdisplay_cmap *cmap) 1523 { 1524 struct wsdisplay_cmap tmpcmap; 1525 u_char cmred[MAXCOLORS]; 1526 u_char cmgrn[MAXCOLORS]; 1527 u_char cmblu[MAXCOLORS]; 1528 1529 int err; 1530 1531 if (cmap->index >= MAXCOLORS || 1532 cmap->count > MAXCOLORS || 1533 cmap->index + cmap->count > MAXCOLORS) 1534 return (EINVAL); 1535 1536 if (cmap->count == 0) 1537 return (0); 1538 1539 tmpcmap.index = cmap->index; 1540 tmpcmap.count = cmap->count; 1541 tmpcmap.red = cmred; 1542 tmpcmap.green = cmgrn; 1543 tmpcmap.blue = cmblu; 1544 1545 if (cmd == WSDISPLAYIO_PUTCMAP) { 1546 /* copy the color data to kernel space */ 1547 1548 err = copyin(cmap->red, cmred, cmap->count); 1549 if (err) 1550 return (err); 1551 1552 err = copyin(cmap->green, cmgrn, cmap->count); 1553 if (err) 1554 return (err); 1555 1556 err = copyin(cmap->blue, cmblu, cmap->count); 1557 if (err) 1558 return (err); 1559 1560 return amidisplaycc_setcmap(view, &tmpcmap); 1561 1562 } else if (cmd == WSDISPLAYIO_GETCMAP) { 1563 1564 err = amidisplaycc_getcmap(view, &tmpcmap); 1565 if (err) 1566 return (err); 1567 1568 /* copy data to user space */ 1569 1570 err = copyout(cmred, cmap->red, cmap->count); 1571 if (err) 1572 return (err); 1573 1574 err = copyout(cmgrn, cmap->green, cmap->count); 1575 if (err) 1576 return (err); 1577 1578 err = copyout(cmblu, cmap->blue, cmap->count); 1579 if (err) 1580 return (err); 1581 1582 return (0); 1583 1584 } else 1585 return (EPASSTHROUGH); 1586 } 1587 1588 /* 1589 * Set the palette of a emulation screen. 1590 * Here we do only color remapping and then call 1591 * amidisplaycc_setcmap to do the work. 1592 */ 1593 1594 static int 1595 amidisplaycc_setemulcmap(struct amidisplaycc_screen *scr, 1596 struct wsdisplay_cmap *cmap) 1597 { 1598 struct wsdisplay_cmap tmpcmap; 1599 1600 u_char red [MAXCOLORS]; 1601 u_char grn [MAXCOLORS]; 1602 u_char blu [MAXCOLORS]; 1603 1604 int rc; 1605 int i; 1606 1607 /* 1608 * Get old palette first. 1609 * Because of the color mapping going on in the emulation 1610 * screen the color range may not be contiguous in the real 1611 * palette. 1612 * So get the whole palette, insert the new colors 1613 * at the appropriate places and then set the whole 1614 * palette back. 1615 */ 1616 1617 tmpcmap.index = 0; 1618 tmpcmap.count = 1 << scr->depth; 1619 tmpcmap.red = red; 1620 tmpcmap.green = grn; 1621 tmpcmap.blue = blu; 1622 1623 rc = amidisplaycc_getcmap(scr->view, &tmpcmap); 1624 if (rc) 1625 return (rc); 1626 1627 for (i = cmap->index ; i < cmap->index + cmap->count ; i++) { 1628 1629 tmpcmap.red [ scr->colormap[ i ] ] = cmap->red [ i ]; 1630 tmpcmap.green [ scr->colormap[ i ] ] = cmap->green [ i ]; 1631 tmpcmap.blue [ scr->colormap[ i ] ] = cmap->blue [ i ]; 1632 } 1633 1634 rc = amidisplaycc_setcmap(scr->view, &tmpcmap); 1635 if (rc) 1636 return (rc); 1637 1638 return (0); 1639 } 1640 1641 1642 /* 1643 * Set the colormap for the given screen. 1644 */ 1645 1646 static int 1647 amidisplaycc_setcmap(view_t *view, struct wsdisplay_cmap *cmap) 1648 { 1649 u_long cmentries [MAXCOLORS]; 1650 1651 u_int colors; 1652 int index; 1653 int count; 1654 int err; 1655 colormap_t cm; 1656 1657 if (view == NULL) 1658 return (EINVAL); 1659 1660 if (!cmap || !cmap->red || !cmap->green || !cmap->blue) { 1661 dprintf("amidisplaycc_setcmap: other==NULL\n"); 1662 return (EINVAL); 1663 } 1664 1665 index = cmap->index; 1666 count = cmap->count; 1667 colors = (1 << view->bitmap->depth); 1668 1669 if (count > colors || index >= colors || index + count > colors) 1670 return (EINVAL); 1671 1672 if (count == 0) 1673 return (0); 1674 1675 cm.entry = cmentries; 1676 cm.first = index; 1677 cm.size = count; 1678 1679 /* 1680 * Get the old colormap. We need to do this at least to know 1681 * how many bits to use with the color values. 1682 */ 1683 1684 err = grf_get_colormap(view, &cm); 1685 if (err) 1686 return (err); 1687 1688 /* 1689 * The palette entries from wscons contain 8 bits per gun. 1690 * We need to convert them to the number of bits the view 1691 * expects. That is typically 4 or 8. Here we calculate the 1692 * conversion constants with which we divide the color values. 1693 */ 1694 1695 if (cm.type == CM_COLOR) { 1696 int c, green_div, blue_div, red_div; 1697 1698 red_div = 256 / (cm.red_mask + 1); 1699 green_div = 256 / (cm.green_mask + 1); 1700 blue_div = 256 / (cm.blue_mask + 1); 1701 1702 for (c = 0 ; c < count ; c++) 1703 cm.entry[c + index] = MAKE_COLOR_ENTRY( 1704 cmap->red[c] / red_div, 1705 cmap->green[c] / green_div, 1706 cmap->blue[c] / blue_div); 1707 1708 } else if (cm.type == CM_GREYSCALE) { 1709 int c, grey_div; 1710 1711 grey_div = 256 / (cm.grey_mask + 1); 1712 1713 /* Generate grey from average of r-g-b (?) */ 1714 for (c = 0 ; c < count ; c++) 1715 cm.entry[c + index] = MAKE_COLOR_ENTRY( 1716 0, 1717 0, 1718 (cmap->red[c] + 1719 cmap->green[c] + 1720 cmap->blue[c]) / 3 / grey_div); 1721 } else 1722 return (EINVAL); /* Hmhh */ 1723 1724 /* 1725 * Now we have a new colormap that contains all the entries. Set 1726 * it to the view. 1727 */ 1728 1729 err = grf_use_colormap(view, &cm); 1730 if (err) 1731 return err; 1732 1733 return (0); 1734 } 1735 1736 /* 1737 * Return the colormap of the given screen. 1738 */ 1739 1740 static int 1741 amidisplaycc_getcmap(view_t *view, struct wsdisplay_cmap *cmap) 1742 { 1743 u_long cmentries [MAXCOLORS]; 1744 1745 u_int colors; 1746 int index; 1747 int count; 1748 int err; 1749 colormap_t cm; 1750 1751 if (view == NULL) 1752 return (EINVAL); 1753 1754 if (!cmap || !cmap->red || !cmap->green || !cmap->blue) 1755 return (EINVAL); 1756 1757 index = cmap->index; 1758 count = cmap->count; 1759 colors = (1 << view->bitmap->depth); 1760 1761 if (count > colors || index >= colors || index + count > colors) 1762 return (EINVAL); 1763 1764 if (count == 0) 1765 return (0); 1766 1767 cm.entry = cmentries; 1768 cm.first = index; 1769 cm.size = count; 1770 1771 err = grf_get_colormap(view, &cm); 1772 if (err) 1773 return (err); 1774 1775 /* 1776 * Copy color data to wscons-style structure. Translate to 1777 * 8 bits/gun from whatever resolution the color natively is. 1778 */ 1779 if (cm.type == CM_COLOR) { 1780 int c, red_mul, green_mul, blue_mul; 1781 1782 red_mul = 256 / (cm.red_mask + 1); 1783 green_mul = 256 / (cm.green_mask + 1); 1784 blue_mul = 256 / (cm.blue_mask + 1); 1785 1786 for (c = 0 ; c < count ; c++) { 1787 cmap->red[c] = red_mul * 1788 CM_GET_RED(cm.entry[index+c]); 1789 cmap->green[c] = green_mul * 1790 CM_GET_GREEN(cm.entry[index+c]); 1791 cmap->blue[c] = blue_mul * 1792 CM_GET_BLUE(cm.entry[index+c]); 1793 } 1794 } else if (cm.type == CM_GREYSCALE) { 1795 int c, grey_mul; 1796 1797 grey_mul = 256 / (cm.grey_mask + 1); 1798 1799 for (c = 0 ; c < count ; c++) { 1800 cmap->red[c] = grey_mul * 1801 CM_GET_GREY(cm.entry[index+c]); 1802 cmap->green[c] = grey_mul * 1803 CM_GET_GREY(cm.entry[index+c]); 1804 cmap->blue[c] = grey_mul * 1805 CM_GET_GREY(cm.entry[index+c]); 1806 } 1807 } else 1808 return (EINVAL); 1809 1810 return (0); 1811 } 1812 1813 /* 1814 * Find and set a font for the given screen. 1815 * 1816 * If fontname is given, a font with that name and suitable 1817 * size (determined by the screen) is searched for. 1818 * If fontname is NULL, a font with suitable size is searched. 1819 * 1820 * On success, the found font is assigned to the screen and possible 1821 * old font is freed. 1822 */ 1823 static int 1824 amidisplaycc_setfont(struct amidisplaycc_screen *scr, const char *fontname) 1825 { 1826 struct wsdisplay_font *wsfont; 1827 int wsfontcookie; 1828 1829 KASSERT(scr); 1830 1831 wsfontcookie = wsfont_find(fontname, 1832 scr->fontwidth, 1833 scr->fontheight, 1834 1, 1835 WSDISPLAY_FONTORDER_L2R, 1836 WSDISPLAY_FONTORDER_L2R); 1837 1838 if (wsfontcookie == -1) 1839 return (EINVAL); 1840 1841 /* Suitable font found. Now lock it. */ 1842 if (wsfont_lock(wsfontcookie, &wsfont)) 1843 return (EINVAL); 1844 1845 KASSERT(wsfont); 1846 1847 if (scr->wsfont && scr->wsfontcookie != -1) 1848 wsfont_unlock(scr->wsfontcookie); 1849 1850 scr->wsfont = wsfont; 1851 scr->wsfontcookie = wsfontcookie; 1852 1853 return (0); 1854 } 1855 1856 /* 1857 * Return a font that is guaranteed to exist. 1858 */ 1859 static const struct wsdisplay_font * 1860 amidisplaycc_getbuiltinfont(void) 1861 { 1862 static struct wsdisplay_font font; 1863 1864 extern unsigned char kernel_font_width_8x8; 1865 extern unsigned char kernel_font_height_8x8; 1866 extern unsigned char kernel_font_lo_8x8; 1867 extern unsigned char kernel_font_hi_8x8; 1868 extern unsigned char kernel_font_8x8[]; 1869 1870 font.name = "kf8x8"; 1871 font.firstchar = kernel_font_lo_8x8; 1872 font.numchars = kernel_font_hi_8x8 - kernel_font_lo_8x8 + 1; 1873 font.fontwidth = kernel_font_width_8x8; 1874 font.stride = 1; 1875 font.fontheight = kernel_font_height_8x8; 1876 font.data = kernel_font_8x8; 1877 1878 /* these values aren't really used for anything */ 1879 font.encoding = WSDISPLAY_FONTENC_ISO; 1880 font.bitorder = WSDISPLAY_FONTORDER_KNOWN; 1881 font.byteorder = WSDISPLAY_FONTORDER_KNOWN; 1882 1883 return &font; 1884 } 1885 1886 /* ARGSUSED */ 1887 void 1888 amidisplaycc_pollc(void *cookie, int on) 1889 { 1890 } 1891 1892 /* 1893 * These dummy functions are here just so that we can compete of 1894 * the console at init. 1895 * If we win the console then the wscons system will provide the 1896 * real ones which in turn will call the apropriate wskbd device. 1897 * These should never be called. 1898 */ 1899 1900 /* ARGSUSED */ 1901 void 1902 amidisplaycc_cnputc(dev_t cd, int ch) 1903 { 1904 } 1905 1906 /* ARGSUSED */ 1907 int 1908 amidisplaycc_cngetc(dev_t cd) 1909 { 1910 return (0); 1911 } 1912 1913 /* ARGSUSED */ 1914 void 1915 amidisplaycc_cnpollc(dev_t cd, int on) 1916 { 1917 } 1918 1919 1920 /* 1921 * Prints stuff if DEBUG is turned on. 1922 */ 1923 1924 /* ARGSUSED */ 1925 static void 1926 dprintf(const char *fmt, ...) 1927 { 1928 #ifdef DEBUG 1929 va_list ap; 1930 1931 va_start(ap, fmt); 1932 vprintf(fmt, ap); 1933 va_end(ap); 1934 #endif 1935 } 1936 1937 #endif /* AMIDISPLAYCC */ 1938