1 /* $NetBSD: amidisplaycc.c,v 1.32 2018/09/03 16:29:22 riastradh 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 1.32 2018/09/03 16:29:22 riastradh 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 (a grfabs view) is allocated. 39 * Also one more view 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 #include "kbd.h" 47 48 #if NAMIDISPLAYCC>0 49 50 #include <sys/param.h> 51 #include <sys/types.h> 52 #include <sys/device.h> 53 #include <sys/malloc.h> 54 #include <sys/systm.h> 55 56 #include <sys/conf.h> 57 58 #include <amiga/dev/grfabs_reg.h> 59 #include <amiga/dev/kbdvar.h> 60 #include <amiga/dev/viewioctl.h> 61 #include <amiga/amiga/device.h> 62 #include <dev/wscons/wsconsio.h> 63 #include <dev/wscons/wscons_raster.h> 64 #include <dev/wscons/wsdisplayvar.h> 65 #include <dev/cons.h> 66 #include <dev/wsfont/wsfont.h> 67 68 /* These can be lowered if you are sure you don't need that much colors. */ 69 #define MAXDEPTH 8 70 #define MAXROWS 128 71 72 #define ADJUSTCOLORS 73 74 #define MAXCOLORS (1<<MAXDEPTH) 75 76 struct amidisplaycc_screen; 77 struct amidisplaycc_softc 78 { 79 struct amidisplaycc_screen * currentscreen; 80 81 /* display turned on? */ 82 int ison; 83 84 /* stuff relating to the mapped screen */ 85 view_t * gfxview; 86 int gfxwidth; 87 int gfxheight; 88 int gfxdepth; 89 int gfxon; 90 }; 91 92 93 /* 94 * Configuration stuff. 95 */ 96 97 static int amidisplaycc_match(device_t, cfdata_t, void *); 98 static void amidisplaycc_attach(device_t, device_t, void *); 99 100 CFATTACH_DECL_NEW(amidisplaycc, sizeof(struct amidisplaycc_softc), 101 amidisplaycc_match, amidisplaycc_attach, NULL, NULL); 102 103 static int amidisplaycc_attached; 104 105 cons_decl(amidisplaycc_); 106 107 /* end of configuration stuff */ 108 109 /* private utility functions */ 110 111 static int amidisplaycc_setvideo(struct amidisplaycc_softc *, int); 112 113 static int amidisplaycc_setemulcmap(struct amidisplaycc_screen *, 114 struct wsdisplay_cmap *); 115 116 static int amidisplaycc_cmapioctl(view_t *, u_long, struct wsdisplay_cmap *); 117 static int amidisplaycc_setcmap(view_t *, struct wsdisplay_cmap *); 118 static int amidisplaycc_getcmap(view_t *, struct wsdisplay_cmap *); 119 static int amidisplaycc_gfxscreen(struct amidisplaycc_softc *, int); 120 121 static int amidisplaycc_setfont(struct amidisplaycc_screen *, const char *); 122 static const struct wsdisplay_font * amidisplaycc_getbuiltinfont(void); 123 124 static void dprintf(const char *fmt, ...); 125 126 /* end of private utility functions */ 127 128 /* emulops for wscons */ 129 void amidisplaycc_cursor(void *, int, int, int); 130 int amidisplaycc_mapchar(void *, int, unsigned int *); 131 void amidisplaycc_putchar(void *, int, int, u_int, long); 132 void amidisplaycc_copycols(void *, int, int, int, int); 133 void amidisplaycc_erasecols(void *, int, int, int, long); 134 void amidisplaycc_copyrows(void *, int, int, int); 135 void amidisplaycc_eraserows(void *, int, int, long); 136 int amidisplaycc_allocattr(void *, int, int, int, long *); 137 /* end of emulops for wscons */ 138 139 140 /* accessops for wscons */ 141 int amidisplaycc_ioctl(void *, void *, u_long, void *, int, struct lwp *); 142 paddr_t amidisplaycc_mmap(void *, void *, off_t, int); 143 int amidisplaycc_alloc_screen(void *, const struct wsscreen_descr *, void **, 144 int *, int *, long *); 145 void amidisplaycc_free_screen( void *, void *); 146 int amidisplaycc_show_screen(void *, void *, int, void (*)(void *, int, int), 147 void *); 148 int amidisplaycc_load_font(void *, void *, struct wsdisplay_font *); 149 void amidisplaycc_pollc(void *, int); 150 /* end of accessops for wscons */ 151 152 /* 153 * These structures are passed to wscons, and they contain the 154 * display-specific callback functions. 155 */ 156 157 const struct wsdisplay_accessops amidisplaycc_accessops = { 158 amidisplaycc_ioctl, 159 amidisplaycc_mmap, 160 amidisplaycc_alloc_screen, 161 amidisplaycc_free_screen, 162 amidisplaycc_show_screen, 163 amidisplaycc_load_font, 164 amidisplaycc_pollc 165 }; 166 167 const struct wsdisplay_emulops amidisplaycc_emulops = { 168 amidisplaycc_cursor, 169 amidisplaycc_mapchar, 170 amidisplaycc_putchar, 171 amidisplaycc_copycols, 172 amidisplaycc_erasecols, 173 amidisplaycc_copyrows, 174 amidisplaycc_eraserows, 175 amidisplaycc_allocattr 176 }; 177 178 /* Add some of our own data to the wsscreen_descr */ 179 struct amidisplaycc_screen_descr { 180 struct wsscreen_descr wsdescr; 181 int depth; 182 }; 183 184 #define ADCC_SCREEN(name, width, height, depth, fontwidth, fontheight) \ 185 /* CONSTCOND */ \ 186 {{ \ 187 name, \ 188 width / fontwidth, \ 189 height / fontheight, \ 190 &amidisplaycc_emulops, fontwidth, fontheight, \ 191 (depth > 1 ? WSSCREEN_WSCOLORS : 0) | WSSCREEN_REVERSE | \ 192 WSSCREEN_HILIT | WSSCREEN_UNDERLINE }, \ 193 depth } 194 195 /* 196 * List of supported screen types. 197 * 198 * The first item in list is used for the console screen. 199 * A suitable screen size is guessed for it by looking 200 * at the GRF_* options. 201 */ 202 struct amidisplaycc_screen_descr amidisplaycc_screentab[] = { 203 /* name, width, height, depth, fontwidth==8, fontheight */ 204 205 #if defined(GRF_PAL) && !defined(GRF_NTSC) 206 ADCC_SCREEN("default", 640, 512, 3, 8, 8), 207 #else 208 ADCC_SCREEN("default", 640, 400, 3, 8, 8), 209 #endif 210 ADCC_SCREEN("80x50", 640, 400, 3, 8, 8), 211 ADCC_SCREEN("80x40", 640, 400, 3, 8, 10), 212 ADCC_SCREEN("80x25", 640, 400, 3, 8, 16), 213 ADCC_SCREEN("80x24", 640, 192, 3, 8, 8), 214 215 ADCC_SCREEN("80x64", 640, 512, 3, 8, 8), 216 ADCC_SCREEN("80x51", 640, 510, 3, 8, 10), 217 ADCC_SCREEN("80x32", 640, 512, 3, 8, 16), 218 ADCC_SCREEN("80x31", 640, 248, 3, 8, 8), 219 220 ADCC_SCREEN("640x400x1", 640, 400, 1, 8, 8), 221 ADCC_SCREEN("640x400x2", 640, 400, 2, 8, 8), 222 ADCC_SCREEN("640x400x3", 640, 400, 3, 8, 8), 223 224 ADCC_SCREEN("640x200x1", 640, 200, 1, 8, 8), 225 ADCC_SCREEN("640x200x2", 640, 200, 2, 8, 8), 226 ADCC_SCREEN("640x200x3", 640, 200, 3, 8, 8), 227 }; 228 229 #define ADCC_SCREENPTR(index) &amidisplaycc_screentab[index].wsdescr 230 const struct wsscreen_descr *amidisplaycc_screens[] = { 231 ADCC_SCREENPTR(0), 232 ADCC_SCREENPTR(1), 233 ADCC_SCREENPTR(2), 234 ADCC_SCREENPTR(3), 235 ADCC_SCREENPTR(4), 236 ADCC_SCREENPTR(5), 237 ADCC_SCREENPTR(6), 238 ADCC_SCREENPTR(7), 239 ADCC_SCREENPTR(8), 240 ADCC_SCREENPTR(9), 241 ADCC_SCREENPTR(10), 242 ADCC_SCREENPTR(11), 243 ADCC_SCREENPTR(12), 244 ADCC_SCREENPTR(13), 245 ADCC_SCREENPTR(14), 246 }; 247 248 #define NELEMS(arr) (sizeof(arr)/sizeof((arr)[0])) 249 250 /* 251 * This structure is passed to wscons. It contains pointers 252 * to the available display modes. 253 */ 254 255 const struct wsscreen_list amidisplaycc_screenlist = { 256 sizeof(amidisplaycc_screens)/sizeof(amidisplaycc_screens[0]), 257 amidisplaycc_screens 258 }; 259 260 /* 261 * Our own screen structure. One will be created for each screen. 262 */ 263 264 struct amidisplaycc_screen 265 { 266 struct amidisplaycc_softc *device; 267 268 int isconsole; 269 int isvisible; 270 view_t * view; 271 272 int ncols; 273 int nrows; 274 275 int cursorrow; 276 int cursorcol; 277 278 /* Active bitplanes for each character row. */ 279 int rowmasks[MAXROWS]; 280 281 /* Mapping of colors to screen colors. */ 282 int colormap[MAXCOLORS]; 283 284 /* Copies of display parameters for convenience */ 285 int width; 286 int height; 287 int depth; 288 289 int widthbytes; /* bytes_per_row */ 290 int linebytes; /* widthbytes + row_mod */ 291 int rowbytes; /* linebytes * fontheight */ 292 293 u_char * planes[MAXDEPTH]; 294 295 const struct wsdisplay_font * wsfont; 296 int wsfontcookie; /* if -1, builtin font */ 297 int fontwidth; 298 int fontheight; 299 }; 300 301 typedef struct amidisplaycc_screen adccscr_t; 302 303 /* 304 * Need one statically allocated screen for early init. 305 * The rest are mallocated when needed. 306 */ 307 adccscr_t amidisplaycc_consolescreen; 308 309 /* 310 * Default palettes for 2, 4 and 8 color emulation displays. 311 */ 312 313 /* black, grey */ 314 static u_char pal2red[] = { 0x00, 0xaa }; 315 static u_char pal2grn[] = { 0x00, 0xaa }; 316 static u_char pal2blu[] = { 0x00, 0xaa }; 317 318 /* black, red, green, grey */ 319 static u_char pal4red[] = { 0x00, 0xaa, 0x00, 0xaa }; 320 static u_char pal4grn[] = { 0x00, 0x00, 0xaa, 0xaa }; 321 static u_char pal4blu[] = { 0x00, 0x00, 0x00, 0xaa }; 322 323 /* black, red, green, brown, blue, magenta, cyan, grey */ 324 static u_char pal8red[] = { 0x00, 0xaa, 0x00, 0xaa, 0x00, 0xaa, 0x00, 0xaa}; 325 static u_char pal8grn[] = { 0x00, 0x00, 0xaa, 0xaa, 0x00, 0x00, 0xaa, 0xaa}; 326 static u_char pal8blu[] = { 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa, 0xaa, 0xaa}; 327 328 static struct wsdisplay_cmap pal2 = { 0, 2, pal2red, pal2grn, pal2blu }; 329 static struct wsdisplay_cmap pal4 = { 0, 4, pal4red, pal4grn, pal4blu }; 330 static struct wsdisplay_cmap pal8 = { 0, 8, pal8red, pal8grn, pal8blu }; 331 332 #ifdef GRF_AGA 333 extern int aga_enable; 334 #else 335 static int aga_enable = 0; 336 #endif 337 338 /* 339 * This gets called at console init to determine the priority of 340 * this console device. 341 * 342 * Pointers to this and other functions must present 343 * in constab[] in conf.c for this to work. 344 */ 345 void 346 amidisplaycc_cnprobe(struct consdev *cd) 347 { 348 cd->cn_pri = CN_INTERNAL; 349 350 /* 351 * Yeah, real nice. But if we win the console then the wscons system 352 * does the proper initialization. 353 */ 354 cd->cn_dev = NODEV; 355 } 356 357 /* 358 * This gets called if this device is used as the console. 359 */ 360 void 361 amidisplaycc_cninit(struct consdev * cd) 362 { 363 void * cookie; 364 long attr; 365 int x; 366 int y; 367 368 /* Yeah, we got the console! */ 369 370 /* 371 * This will do the basic stuff we also need. 372 */ 373 grfcc_probe(); 374 375 #if NVIEW>0 376 viewprobe(); 377 #endif 378 379 /* 380 * Set up wscons to handle the details. 381 * It will then call us back when it needs something 382 * display-specific. It will also set up cn_tab properly, 383 * something which we failed to do at amidisplaycc_cnprobe(). 384 */ 385 386 /* 387 * The alloc_screen knows to allocate the first screen statically. 388 */ 389 amidisplaycc_alloc_screen(NULL, &amidisplaycc_screentab[0].wsdescr, 390 &cookie, &x, &y, &attr); 391 wsdisplay_cnattach(&amidisplaycc_screentab[0].wsdescr, 392 cookie, x, y, attr); 393 394 #if NKBD>0 395 /* tell kbd device it is used as console keyboard */ 396 kbd_cnattach(); 397 #endif 398 } 399 400 static int 401 amidisplaycc_match(device_t parent, cfdata_t cf, void *aux) 402 { 403 char *name = aux; 404 405 if (matchname("amidisplaycc", name) == 0) 406 return (0); 407 408 /* Allow only one of us. */ 409 if (amidisplaycc_attached) 410 return (0); 411 412 return 1; 413 } 414 415 /* ARGSUSED */ 416 static void 417 amidisplaycc_attach(device_t parent, device_t self, void *aux) 418 { 419 struct wsemuldisplaydev_attach_args waa; 420 struct amidisplaycc_softc * adp; 421 422 amidisplaycc_attached = 1; 423 424 adp = device_private(self); 425 426 grfcc_probe(); 427 428 #if NVIEW>0 429 viewprobe(); 430 #endif 431 432 /* 433 * Attach only at real configuration time. Console init is done at 434 * the amidisplaycc_cninit function above. 435 */ 436 if (adp) { 437 printf(": Amiga custom chip graphics %s", 438 aga_enable ? "(AGA)" : ""); 439 440 if (amidisplaycc_consolescreen.isconsole) { 441 amidisplaycc_consolescreen.device = adp; 442 adp->currentscreen = &amidisplaycc_consolescreen; 443 printf(" (console)"); 444 } else 445 adp->currentscreen = NULL; 446 447 printf("\n"); 448 449 adp->ison = 1; 450 451 /* 452 * Mapped screen properties. 453 * Would need a way to configure. 454 */ 455 adp->gfxview = NULL; 456 adp->gfxon = 0; 457 adp->gfxwidth = amidisplaycc_screentab[0].wsdescr.ncols * 458 amidisplaycc_screentab[0].wsdescr.fontwidth; 459 adp->gfxheight = amidisplaycc_screentab[0].wsdescr.nrows * 460 amidisplaycc_screentab[0].wsdescr.fontheight; 461 462 if (aga_enable) 463 adp->gfxdepth = 8; 464 else 465 adp->gfxdepth = 4; 466 467 if (NELEMS(amidisplaycc_screentab) != 468 NELEMS(amidisplaycc_screens)) 469 panic("invalid screen definitions"); 470 471 waa.scrdata = &amidisplaycc_screenlist; 472 waa.console = amidisplaycc_consolescreen.isconsole; 473 waa.accessops = &amidisplaycc_accessops; 474 waa.accesscookie = adp; 475 config_found(self, &waa, wsemuldisplaydevprint); 476 477 wsfont_init(); 478 } 479 } 480 481 /* 482 * Foreground color, background color, and style are packed into one 483 * long attribute. These macros are used to create/split the attribute. 484 */ 485 486 #define MAKEATTR(fg, bg, mode) (((fg)<<16) | ((bg)<<8) | (mode)) 487 #define ATTRFG(attr) (((attr)>>16) & 255) 488 #define ATTRBG(attr) (((attr)>>8) & 255) 489 #define ATTRMO(attr) ((attr) & 255) 490 491 /* 492 * Called by wscons to draw/clear the cursor. 493 * We do this by xorring the block to the screen. 494 * 495 * This simple implementation will break if the screen is modified 496 * under the cursor before clearing it. 497 */ 498 void 499 amidisplaycc_cursor(void *screen, int on, int row, int col) 500 { 501 adccscr_t * scr; 502 u_char * dst; 503 int i; 504 505 scr = screen; 506 507 if (row < 0 || col < 0 || row >= scr->nrows || col >= scr->ncols) 508 return; 509 510 /* was off, turning off again? */ 511 if (!on && scr->cursorrow == -1 && scr->cursorcol == -1) 512 return; 513 514 /* was on, and turning on again? */ 515 if (on && scr->cursorrow >= 0 && scr->cursorcol >= 0) 516 { 517 /* clear from old location first */ 518 amidisplaycc_cursor (screen, 0, scr->cursorrow, scr->cursorcol); 519 } 520 521 dst = scr->planes[0]; 522 dst += row * scr->rowbytes; 523 dst += col; 524 525 if (on) { 526 scr->cursorrow = row; 527 scr->cursorcol = col; 528 } else { 529 scr->cursorrow = -1; 530 scr->cursorcol = -1; 531 } 532 533 for (i = scr->fontheight ; i > 0 ; i--) { 534 *dst ^= 255; 535 dst += scr->linebytes; 536 } 537 } 538 539 540 int 541 amidisplaycc_mapchar(void *screen, int ch, unsigned int *chp) 542 { 543 if (ch > 0 && ch < 256) { 544 *chp = ch; 545 return (5); 546 } 547 *chp = ' '; 548 return (0); 549 } 550 551 /* 552 * Write a character to screen with color / bgcolor / hilite(bold) / 553 * underline / reverse. 554 * Surely could be made faster but I'm not sure if its worth the 555 * effort as scrolling is at least a magnitude slower. 556 */ 557 void 558 amidisplaycc_putchar(void *screen, int row, int col, u_int ch, long attr) 559 { 560 adccscr_t * scr; 561 u_char * dst; 562 u_char * font; 563 564 int fontheight; 565 u_int8_t * fontreal; 566 int fontlow; 567 int fonthigh; 568 569 int bmapoffset; 570 int linebytes; 571 int underline; 572 int fgcolor; 573 int bgcolor; 574 int plane; 575 int depth; 576 int mode; 577 int bold; 578 u_char f; 579 int j; 580 581 scr = screen; 582 583 if (row < 0 || col < 0 || row >= scr->nrows || col >= scr->ncols) 584 return; 585 586 /* Extract the colors from the attribute */ 587 fgcolor = ATTRFG(attr); 588 bgcolor = ATTRBG(attr); 589 mode = ATTRMO(attr); 590 591 /* Translate to screen colors */ 592 fgcolor = scr->colormap[fgcolor]; 593 bgcolor = scr->colormap[bgcolor]; 594 595 if (mode & WSATTR_REVERSE) { 596 j = fgcolor; 597 fgcolor = bgcolor; 598 bgcolor = j; 599 } 600 601 bold = (mode & WSATTR_HILIT) > 0; 602 underline = (mode & WSATTR_UNDERLINE) > 0; 603 604 fontreal = scr->wsfont->data; 605 fontlow = scr->wsfont->firstchar; 606 fonthigh = fontlow + scr->wsfont->numchars - 1; 607 608 fontheight = uimin(scr->fontheight, scr->wsfont->fontheight); 609 depth = scr->depth; 610 linebytes = scr->linebytes; 611 612 if (ch < fontlow || ch > fonthigh) 613 ch = fontlow; 614 615 /* Find the location where the wanted char is in the font data */ 616 fontreal += scr->wsfont->fontheight * (ch - fontlow); 617 618 bmapoffset = row * scr->rowbytes + col; 619 620 scr->rowmasks[row] |= fgcolor | bgcolor; 621 622 for (plane = 0 ; plane < depth ; plane++) { 623 dst = scr->planes[plane] + bmapoffset; 624 625 if (fgcolor & 1) { 626 if (bgcolor & 1) { 627 /* fg=on bg=on (fill) */ 628 629 for (j = 0 ; j < fontheight ; j++) { 630 *dst = 255; 631 dst += linebytes; 632 } 633 } else { 634 /* fg=on bg=off (normal) */ 635 636 font = fontreal; 637 for (j = 0 ; j < fontheight ; j++) { 638 f = *(font++); 639 f |= f >> bold; 640 *dst = f; 641 dst += linebytes; 642 } 643 644 if (underline) 645 *(dst - linebytes) = 255; 646 } 647 } else { 648 if (bgcolor & 1) { 649 /* fg=off bg=on (inverted) */ 650 651 font = fontreal; 652 for (j = 0 ; j < fontheight ; j++) { 653 f = *(font++); 654 f |= f >> bold; 655 *dst = ~f; 656 dst += linebytes; 657 } 658 659 if (underline) 660 *(dst - linebytes) = 0; 661 } else { 662 /* fg=off bg=off (clear) */ 663 664 for (j = 0 ; j < fontheight ; j++) { 665 *dst = 0; 666 dst += linebytes; 667 } 668 } 669 } 670 fgcolor >>= 1; 671 bgcolor >>= 1; 672 } 673 } 674 675 /* 676 * Copy characters on a row to another position on the same row. 677 */ 678 679 void 680 amidisplaycc_copycols(void *screen, int row, int srccol, int dstcol, int ncols) 681 { 682 adccscr_t * scr; 683 u_char * src; 684 u_char * dst; 685 686 int bmapoffset; 687 int linebytes; 688 int depth; 689 int plane; 690 int i; 691 int j; 692 693 scr = screen; 694 695 if (srccol < 0 || srccol + ncols > scr->ncols || 696 dstcol < 0 || dstcol + ncols > scr->ncols || 697 row < 0 || row >= scr->nrows) 698 return; 699 700 depth = scr->depth; 701 linebytes = scr->linebytes; 702 bmapoffset = row * scr->rowbytes; 703 704 for (plane = 0 ; plane < depth ; plane++) { 705 src = scr->planes[plane] + bmapoffset; 706 707 for (j = 0 ; j < scr->fontheight ; j++) { 708 dst = src; 709 710 if (srccol < dstcol) { 711 712 for (i = ncols - 1 ; i >= 0 ; i--) 713 dst[dstcol + i] = src[srccol + i]; 714 715 } else { 716 717 for (i = 0 ; i < ncols ; i++) 718 dst[dstcol + i] = src[srccol + i]; 719 720 } 721 src += linebytes; 722 } 723 } 724 } 725 726 /* 727 * Erase part of a row. 728 */ 729 730 void 731 amidisplaycc_erasecols(void *screen, int row, int startcol, int ncols, 732 long attr) 733 { 734 adccscr_t * scr; 735 u_char * dst; 736 737 int bmapoffset; 738 int linebytes; 739 int bgcolor; 740 int depth; 741 int plane; 742 int fill; 743 int j; 744 745 scr = screen; 746 747 if (row < 0 || row >= scr->nrows || 748 startcol < 0 || startcol + ncols > scr->ncols) 749 return; 750 751 depth = scr->depth; 752 linebytes = scr->linebytes; 753 bmapoffset = row * scr->rowbytes + startcol; 754 755 /* Erase will be done using the set background color. */ 756 bgcolor = ATTRBG(attr); 757 bgcolor = scr->colormap[bgcolor]; 758 759 for(plane = 0 ; plane < depth ; plane++) { 760 761 fill = (bgcolor & 1) ? 255 : 0; 762 763 dst = scr->planes[plane] + bmapoffset; 764 765 for (j = 0 ; j < scr->fontheight ; j++) { 766 memset(dst, fill, ncols); 767 dst += linebytes; 768 } 769 } 770 } 771 772 /* 773 * Copy a number of rows to another location on the screen. 774 */ 775 776 void 777 amidisplaycc_copyrows(void *screen, int srcrow, int dstrow, int nrows) 778 { 779 adccscr_t * scr; 780 u_char * src; 781 u_char * dst; 782 783 int srcbmapoffset; 784 int dstbmapoffset; 785 int widthbytes; 786 int fontheight; 787 int linebytes; 788 u_int copysize; 789 int rowdelta; 790 int rowbytes; 791 int srcmask; 792 int dstmask; 793 int bmdelta; 794 int depth; 795 int plane; 796 int i; 797 int j; 798 799 scr = screen; 800 801 if (srcrow < 0 || srcrow + nrows > scr->nrows || 802 dstrow < 0 || dstrow + nrows > scr->nrows) 803 return; 804 805 depth = scr->depth; 806 807 widthbytes = scr->widthbytes; 808 rowbytes = scr->rowbytes; 809 linebytes = scr->linebytes; 810 fontheight = scr->fontheight; 811 812 srcbmapoffset = rowbytes * srcrow; 813 dstbmapoffset = rowbytes * dstrow; 814 815 if (srcrow < dstrow) { 816 /* Move data downwards, need to copy from down to up */ 817 bmdelta = -rowbytes; 818 rowdelta = -1; 819 820 srcbmapoffset += rowbytes * (nrows - 1); 821 srcrow += nrows - 1; 822 823 dstbmapoffset += rowbytes * (nrows - 1); 824 dstrow += nrows - 1; 825 } else { 826 /* Move data upwards, copy up to down */ 827 bmdelta = rowbytes; 828 rowdelta = 1; 829 } 830 831 if (widthbytes == linebytes) 832 copysize = rowbytes; 833 else 834 copysize = 0; 835 836 for (j = 0 ; j < nrows ; j++) { 837 /* Need to copy only planes that have data on src or dst */ 838 srcmask = scr->rowmasks[srcrow]; 839 dstmask = scr->rowmasks[dstrow]; 840 scr->rowmasks[dstrow] = srcmask; 841 842 for (plane = 0 ; plane < depth ; plane++) { 843 844 if (srcmask & 1) { 845 /* 846 * Source row has data on this 847 * plane, copy it. 848 */ 849 850 src = scr->planes[plane] + srcbmapoffset; 851 dst = scr->planes[plane] + dstbmapoffset; 852 853 if (copysize > 0) { 854 855 memcpy(dst, src, copysize); 856 857 } else { 858 859 /* 860 * Data not continuous, 861 * must do in pieces 862 */ 863 for (i=0 ; i < fontheight ; i++) { 864 memcpy(dst, src, widthbytes); 865 866 src += linebytes; 867 dst += linebytes; 868 } 869 } 870 } else if (dstmask & 1) { 871 /* 872 * Source plane is empty, but dest is not. 873 * so all we need to is clear it. 874 */ 875 876 dst = scr->planes[plane] + dstbmapoffset; 877 878 if (copysize > 0) { 879 /* Do it all */ 880 memset(dst, 0, copysize); 881 } else { 882 for (i = 0 ; i < fontheight ; i++) { 883 memset(dst, 0, widthbytes); 884 dst += linebytes; 885 } 886 } 887 } 888 889 srcmask >>= 1; 890 dstmask >>= 1; 891 } 892 srcbmapoffset += bmdelta; 893 dstbmapoffset += bmdelta; 894 895 srcrow += rowdelta; 896 dstrow += rowdelta; 897 } 898 } 899 900 /* 901 * Erase some rows. 902 */ 903 904 void 905 amidisplaycc_eraserows(void *screen, int row, int nrows, long attr) 906 { 907 adccscr_t * scr; 908 u_char * dst; 909 910 int bmapoffset; 911 int fillsize; 912 int bgcolor; 913 int depth; 914 int plane; 915 int fill; 916 int j; 917 918 int widthbytes; 919 int linebytes; 920 int rowbytes; 921 922 923 scr = screen; 924 925 if (row < 0 || row + nrows > scr->nrows) 926 return; 927 928 depth = scr->depth; 929 widthbytes = scr->widthbytes; 930 linebytes = scr->linebytes; 931 rowbytes = scr->rowbytes; 932 933 bmapoffset = row * rowbytes; 934 935 if (widthbytes == linebytes) 936 fillsize = rowbytes * nrows; 937 else 938 fillsize = 0; 939 940 bgcolor = ATTRBG(attr); 941 bgcolor = scr->colormap[bgcolor]; 942 943 for (j = 0 ; j < nrows ; j++) 944 scr->rowmasks[row+j] = bgcolor; 945 946 for (plane = 0 ; plane < depth ; plane++) { 947 dst = scr->planes[plane] + bmapoffset; 948 fill = (bgcolor & 1) ? 255 : 0; 949 950 if (fillsize > 0) { 951 /* If the rows are continuous, write them all. */ 952 memset(dst, fill, fillsize); 953 } else { 954 for (j = 0 ; j < scr->fontheight * nrows ; j++) { 955 memset(dst, fill, widthbytes); 956 dst += linebytes; 957 } 958 } 959 bgcolor >>= 1; 960 } 961 } 962 963 964 /* 965 * Compose an attribute value from foreground color, 966 * background color, and flags. 967 */ 968 int 969 amidisplaycc_allocattr(void *screen, int fg, int bg, int flags, long *attrp) 970 { 971 adccscr_t * scr; 972 int maxcolor; 973 int newfg; 974 int newbg; 975 976 scr = screen; 977 maxcolor = (1 << scr->view->bitmap->depth) - 1; 978 979 /* Ensure the colors are displayable. */ 980 newfg = fg & maxcolor; 981 newbg = bg & maxcolor; 982 983 #ifdef ADJUSTCOLORS 984 /* 985 * Hack for low-color screens, if background color is nonzero 986 * but would be displayed as one, adjust it. 987 */ 988 if (bg > 0 && newbg == 0) 989 newbg = maxcolor; 990 991 /* 992 * If foreground and background colors are different but would 993 * display the same fix them by modifying the foreground. 994 */ 995 if (fg != bg && newfg == newbg) { 996 if (newbg > 0) 997 newfg = 0; 998 else 999 newfg = maxcolor; 1000 } 1001 #endif 1002 *attrp = MAKEATTR(newfg, newbg, flags); 1003 1004 return (0); 1005 } 1006 1007 int 1008 amidisplaycc_ioctl(void *dp, void *vs, u_long cmd, void *data, int flag, 1009 struct lwp *l) 1010 { 1011 struct amidisplaycc_softc *adp; 1012 1013 adp = dp; 1014 1015 if (adp == NULL) { 1016 printf("amidisplaycc_ioctl: adp==NULL\n"); 1017 return (EINVAL); 1018 } 1019 1020 #define UINTDATA (*(u_int*)data) 1021 #define INTDATA (*(int*)data) 1022 #define FBINFO (*(struct wsdisplay_fbinfo*)data) 1023 1024 switch (cmd) 1025 { 1026 case WSDISPLAYIO_GTYPE: 1027 UINTDATA = WSDISPLAY_TYPE_AMIGACC; 1028 return (0); 1029 1030 case WSDISPLAYIO_SVIDEO: 1031 dprintf("amidisplaycc: WSDISPLAYIO_SVIDEO %s\n", 1032 UINTDATA ? "On" : "Off"); 1033 1034 return (amidisplaycc_setvideo(adp, UINTDATA)); 1035 1036 case WSDISPLAYIO_GVIDEO: 1037 dprintf("amidisplaycc: WSDISPLAYIO_GVIDEO\n"); 1038 UINTDATA = adp->ison ? 1039 WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF; 1040 1041 return (0); 1042 1043 case WSDISPLAYIO_SMODE: 1044 if (INTDATA == WSDISPLAYIO_MODE_EMUL) 1045 return amidisplaycc_gfxscreen(adp, 0); 1046 if (INTDATA == WSDISPLAYIO_MODE_MAPPED) 1047 return amidisplaycc_gfxscreen(adp, 1); 1048 return (EINVAL); 1049 1050 case WSDISPLAYIO_GINFO: 1051 FBINFO.width = adp->gfxwidth; 1052 FBINFO.height = adp->gfxheight; 1053 FBINFO.depth = adp->gfxdepth; 1054 FBINFO.cmsize = 1 << FBINFO.depth; 1055 return (0); 1056 1057 case WSDISPLAYIO_PUTCMAP: 1058 case WSDISPLAYIO_GETCMAP: 1059 return (amidisplaycc_cmapioctl(adp->gfxview, 1060 cmd, 1061 (struct wsdisplay_cmap*)data)); 1062 } 1063 1064 return (EPASSTHROUGH); 1065 1066 #undef UINTDATA 1067 #undef INTDATA 1068 #undef FBINFO 1069 } 1070 1071 1072 /* 1073 * Switch to either emulation (text) or mapped (graphics) mode 1074 * We keep an extra screen for mapped mode so it does not 1075 * interfere with emulation screens. 1076 * 1077 * Once the extra screen is created, it never goes away. 1078 */ 1079 1080 static int 1081 amidisplaycc_gfxscreen(struct amidisplaycc_softc *adp, int on) 1082 { 1083 dimen_t dimension; 1084 1085 dprintf("amidisplaycc: switching to %s mode.\n", 1086 on ? "mapped" : "emul"); 1087 1088 /* Current mode same as requested mode? */ 1089 if ( (on > 0) == (adp->gfxon > 0) ) 1090 return (0); 1091 1092 if (!on) { 1093 /* 1094 * Switch away from mapped mode. If there is 1095 * a emulation screen, switch to it, otherwise 1096 * just try to hide the mapped screen. 1097 */ 1098 adp->gfxon = 0; 1099 if (adp->currentscreen) 1100 grf_display_view(adp->currentscreen->view); 1101 else if (adp->gfxview) 1102 grf_remove_view(adp->gfxview); 1103 1104 return (0); 1105 } 1106 1107 /* switch to mapped mode then */ 1108 1109 if (adp->gfxview == NULL) { 1110 /* First time here, create the screen */ 1111 1112 dimension.width = adp->gfxwidth; 1113 dimension.height = adp->gfxheight; 1114 1115 dprintf("amidisplaycc: preparing mapped screen %dx%dx%d\n", 1116 dimension.width, 1117 dimension.height, 1118 adp->gfxdepth); 1119 1120 adp->gfxview = grf_alloc_view(NULL, 1121 &dimension, 1122 adp->gfxdepth); 1123 } 1124 1125 if (adp->gfxview) { 1126 adp->gfxon = 1; 1127 1128 grf_display_view(adp->gfxview); 1129 } else { 1130 printf("amidisplaycc: failed to make mapped screen\n"); 1131 return (ENOMEM); 1132 } 1133 return (0); 1134 } 1135 1136 /* 1137 * Map the graphics screen. It must have been created before 1138 * by switching to mapped mode by using an ioctl. 1139 */ 1140 paddr_t 1141 amidisplaycc_mmap(void *dp, void *vs, off_t off, int prot) 1142 { 1143 struct amidisplaycc_softc * adp; 1144 bmap_t * bm; 1145 paddr_t rv; 1146 1147 adp = (struct amidisplaycc_softc*)dp; 1148 1149 /* Check we are in mapped mode */ 1150 if (adp->gfxon == 0 || adp->gfxview == NULL) { 1151 dprintf("amidisplaycc_mmap: Not in mapped mode\n"); 1152 return (paddr_t)(-1); 1153 } 1154 1155 /* 1156 * Screen reserved for graphics is used to avoid writing 1157 * over the text screens. 1158 */ 1159 1160 bm = adp->gfxview->bitmap; 1161 1162 /* Check that the offset is valid */ 1163 if (off < 0 || off >= bm->depth * bm->bytes_per_row * bm->rows) { 1164 dprintf("amidisplaycc_mmap: Offset out of range\n"); 1165 return (paddr_t)(-1); 1166 } 1167 1168 rv = (paddr_t)bm->hardware_address; 1169 rv += off; 1170 1171 return MD_BTOP(rv); 1172 } 1173 1174 1175 /* 1176 * Create a new screen. 1177 * 1178 * NULL dp signifies console and then memory is allocated statically 1179 * and the screen is automatically displayed. 1180 * 1181 * A font with suitable size is searched and if not found 1182 * the builtin 8x8 font is used. 1183 * 1184 * There are separate default palettes for 2, 4 and 8+ color 1185 * screens. 1186 */ 1187 1188 int 1189 amidisplaycc_alloc_screen(void *dp, const struct wsscreen_descr *screenp, 1190 void **cookiep, int *curxp, int *curyp, 1191 long *defattrp) 1192 { 1193 const struct amidisplaycc_screen_descr * adccscreenp; 1194 struct amidisplaycc_screen * scr; 1195 struct amidisplaycc_softc * adp; 1196 view_t * view; 1197 1198 dimen_t dimension; 1199 int fontheight; 1200 int fontwidth; 1201 int maxcolor; 1202 int depth; 1203 int i; 1204 int j; 1205 1206 adccscreenp = (const struct amidisplaycc_screen_descr *)screenp; 1207 depth = adccscreenp->depth; 1208 1209 adp = dp; 1210 1211 maxcolor = (1 << depth) - 1; 1212 1213 /* Sanity checks because of fixed buffers */ 1214 if (depth > MAXDEPTH || maxcolor >= MAXCOLORS) 1215 return (ENOMEM); 1216 if (screenp->nrows > MAXROWS) 1217 return (ENOMEM); 1218 1219 fontwidth = screenp->fontwidth; 1220 fontheight = screenp->fontheight; 1221 1222 /* 1223 * The screen size is defined in characters. 1224 * Calculate the pixel size using the font size. 1225 */ 1226 1227 dimension.width = screenp->ncols * fontwidth; 1228 dimension.height = screenp->nrows * fontheight; 1229 1230 view = grf_alloc_view(NULL, &dimension, depth); 1231 if (view == NULL) 1232 return (ENOMEM); 1233 1234 /* 1235 * First screen gets the statically allocated console screen. 1236 * Others are allocated dynamically. 1237 */ 1238 if (adp == NULL) { 1239 scr = &amidisplaycc_consolescreen; 1240 if (scr->isconsole) 1241 panic("more than one console?"); 1242 1243 scr->isconsole = 1; 1244 } else { 1245 scr = malloc(sizeof(adccscr_t), M_DEVBUF, M_WAITOK|M_ZERO); 1246 } 1247 1248 scr->view = view; 1249 1250 scr->ncols = screenp->ncols; 1251 scr->nrows = screenp->nrows; 1252 1253 /* Copies of most used values */ 1254 scr->width = dimension.width; 1255 scr->height = dimension.height; 1256 scr->depth = depth; 1257 scr->widthbytes = view->bitmap->bytes_per_row; 1258 scr->linebytes = scr->widthbytes + view->bitmap->row_mod; 1259 scr->rowbytes = scr->linebytes * fontheight; 1260 1261 scr->device = adp; 1262 1263 1264 /* 1265 * Try to find a suitable font. 1266 * Avoid everything but the builtin font for console screen. 1267 * Builtin font is used if no other is found, even if it 1268 * has the wrong size. 1269 */ 1270 1271 KASSERT(fontwidth == 8); 1272 1273 scr->wsfont = NULL; 1274 scr->wsfontcookie = -1; 1275 scr->fontwidth = fontwidth; 1276 scr->fontheight = fontheight; 1277 1278 if (adp) 1279 amidisplaycc_setfont(scr, NULL); 1280 1281 if (scr->wsfont == NULL) 1282 { 1283 scr->wsfont = amidisplaycc_getbuiltinfont(); 1284 scr->wsfontcookie = -1; 1285 } 1286 1287 KASSERT(scr->wsfont); 1288 KASSERT(scr->wsfont->stride == 1); 1289 1290 for (i = 0 ; i < depth ; i++) { 1291 scr->planes[i] = view->bitmap->plane[i]; 1292 } 1293 1294 for (i = 0 ; i < MAXROWS ; i++) 1295 scr->rowmasks[i] = 0; 1296 1297 /* Simple one-to-one mapping for most colors */ 1298 for (i = 0 ; i < MAXCOLORS ; i++) 1299 scr->colormap[i] = i; 1300 1301 /* 1302 * Arrange the most used pens to quickest colors. 1303 * The default color for given depth is (1<<depth)-1. 1304 * It is assumed it is used most and it is mapped to 1305 * color that can be drawn by writing data to one bitplane 1306 * only. 1307 * So map colors 3->2, 7->4, 15->8 and so on. 1308 */ 1309 for (i = 2 ; i < MAXCOLORS ; i *= 2) { 1310 j = i * 2 - 1; 1311 1312 if (j < MAXCOLORS) { 1313 scr->colormap[i] = j; 1314 scr->colormap[j] = i; 1315 } 1316 } 1317 1318 /* 1319 * Set the default colormap. 1320 */ 1321 if (depth == 1) 1322 amidisplaycc_setemulcmap(scr, &pal2); 1323 else if (depth == 2) 1324 amidisplaycc_setemulcmap(scr, &pal4); 1325 else 1326 amidisplaycc_setemulcmap(scr, &pal8); 1327 1328 *cookiep = scr; 1329 1330 /* cursor initially at top left */ 1331 scr->cursorrow = -1; 1332 scr->cursorcol = -1; 1333 *curxp = 0; 1334 *curyp = 0; 1335 amidisplaycc_cursor(scr, 1, *curxp, *curyp); 1336 1337 *defattrp = MAKEATTR(maxcolor, 0, 0); 1338 1339 /* Show the console automatically */ 1340 if (adp == NULL) 1341 grf_display_view(scr->view); 1342 1343 if (adp) { 1344 dprintf("amidisplaycc: allocated screen; %dx%dx%d; font=%s\n", 1345 dimension.width, 1346 dimension.height, 1347 depth, 1348 scr->wsfont->name); 1349 } 1350 1351 return (0); 1352 } 1353 1354 1355 /* 1356 * Destroy a screen. 1357 */ 1358 1359 void 1360 amidisplaycc_free_screen(void *dp, void *screen) 1361 { 1362 struct amidisplaycc_screen * scr; 1363 struct amidisplaycc_softc * adp; 1364 1365 scr = screen; 1366 adp = (struct amidisplaycc_softc*)dp; 1367 1368 if (scr == NULL) 1369 return; 1370 1371 /* Free the used font */ 1372 if (scr->wsfont && scr->wsfontcookie != -1) 1373 wsfont_unlock(scr->wsfontcookie); 1374 scr->wsfont = NULL; 1375 scr->wsfontcookie = -1; 1376 1377 if (adp->currentscreen == scr) 1378 adp->currentscreen = NULL; 1379 1380 if (scr->view) 1381 grf_free_view(scr->view); 1382 scr->view = NULL; 1383 1384 /* Take care not to free the statically allocated console screen */ 1385 if (scr != &amidisplaycc_consolescreen) { 1386 free(scr, M_DEVBUF); 1387 } 1388 } 1389 1390 /* 1391 * Switch to another vt. Switch is always made immediately. 1392 */ 1393 1394 /* ARGSUSED2 */ 1395 int 1396 amidisplaycc_show_screen(void *dp, void *screen, int waitok, 1397 void (*cb) (void *, int, int), void *cbarg) 1398 { 1399 adccscr_t *scr; 1400 struct amidisplaycc_softc *adp; 1401 1402 adp = (struct amidisplaycc_softc*)dp; 1403 scr = screen; 1404 1405 if (adp == NULL) { 1406 dprintf("amidisplaycc_show_screen: adp==NULL\n"); 1407 return (EINVAL); 1408 } 1409 if (scr == NULL) { 1410 dprintf("amidisplaycc_show_screen: scr==NULL\n"); 1411 return (EINVAL); 1412 } 1413 1414 if (adp->gfxon) { 1415 dprintf("amidisplaycc: Screen shift while in gfx mode?"); 1416 adp->gfxon = 0; 1417 } 1418 1419 adp->currentscreen = scr; 1420 adp->ison = 1; 1421 1422 grf_display_view(scr->view); 1423 1424 return (0); 1425 } 1426 1427 /* 1428 * Load/set a font. 1429 * 1430 * Only setting is supported, as the wsfont pseudo-device can 1431 * handle the loading of fonts for us. 1432 */ 1433 int 1434 amidisplaycc_load_font(void *dp, void *cookie, struct wsdisplay_font *font) 1435 { 1436 struct amidisplaycc_softc * adp __diagused; 1437 struct amidisplaycc_screen * scr __diagused; 1438 1439 adp = dp; 1440 scr = cookie; 1441 1442 KASSERT(adp); 1443 KASSERT(scr); 1444 KASSERT(font); 1445 KASSERT(font->name); 1446 1447 if (font->data) 1448 { 1449 /* request to load the font, not supported */ 1450 return (EINVAL); 1451 } 1452 else 1453 { 1454 /* request to use the given font on this screen */ 1455 return amidisplaycc_setfont(scr, font->name); 1456 } 1457 } 1458 1459 /* 1460 * Set display on/off. 1461 */ 1462 static int 1463 amidisplaycc_setvideo(struct amidisplaycc_softc *adp, int mode) 1464 { 1465 view_t * view; 1466 1467 if (adp == NULL) { 1468 dprintf("amidisplaycc_setvideo: adp==NULL\n"); 1469 return (EINVAL); 1470 } 1471 if (adp->currentscreen == NULL) { 1472 dprintf("amidisplaycc_setvideo: adp->currentscreen==NULL\n"); 1473 return (EINVAL); 1474 } 1475 1476 /* select graphics or emulation screen */ 1477 if (adp->gfxon && adp->gfxview) 1478 view = adp->gfxview; 1479 else 1480 view = adp->currentscreen->view; 1481 1482 if (mode) { 1483 /* on */ 1484 1485 grf_display_view(view); 1486 dprintf("amidisplaycc: video is now on\n"); 1487 adp->ison = 1; 1488 1489 } else { 1490 /* off */ 1491 1492 grf_remove_view(view); 1493 dprintf("amidisplaycc: video is now off\n"); 1494 adp->ison = 0; 1495 } 1496 1497 return (0); 1498 } 1499 1500 /* 1501 * Handle the WSDISPLAY_[PUT/GET]CMAP ioctls. 1502 * Just handle the copying of data to/from userspace and 1503 * let the functions amidisplaycc_setcmap and amidisplaycc_putcmap 1504 * do the real work. 1505 */ 1506 1507 static int 1508 amidisplaycc_cmapioctl(view_t *view, u_long cmd, struct wsdisplay_cmap *cmap) 1509 { 1510 struct wsdisplay_cmap tmpcmap; 1511 u_char cmred[MAXCOLORS]; 1512 u_char cmgrn[MAXCOLORS]; 1513 u_char cmblu[MAXCOLORS]; 1514 1515 int err; 1516 1517 if (cmap->index >= MAXCOLORS || 1518 cmap->count > MAXCOLORS || 1519 cmap->index + cmap->count > MAXCOLORS) 1520 return (EINVAL); 1521 1522 if (cmap->count == 0) 1523 return (0); 1524 1525 tmpcmap.index = cmap->index; 1526 tmpcmap.count = cmap->count; 1527 tmpcmap.red = cmred; 1528 tmpcmap.green = cmgrn; 1529 tmpcmap.blue = cmblu; 1530 1531 if (cmd == WSDISPLAYIO_PUTCMAP) { 1532 /* copy the color data to kernel space */ 1533 1534 err = copyin(cmap->red, cmred, cmap->count); 1535 if (err) 1536 return (err); 1537 1538 err = copyin(cmap->green, cmgrn, cmap->count); 1539 if (err) 1540 return (err); 1541 1542 err = copyin(cmap->blue, cmblu, cmap->count); 1543 if (err) 1544 return (err); 1545 1546 return amidisplaycc_setcmap(view, &tmpcmap); 1547 1548 } else if (cmd == WSDISPLAYIO_GETCMAP) { 1549 1550 err = amidisplaycc_getcmap(view, &tmpcmap); 1551 if (err) 1552 return (err); 1553 1554 /* copy data to user space */ 1555 1556 err = copyout(cmred, cmap->red, cmap->count); 1557 if (err) 1558 return (err); 1559 1560 err = copyout(cmgrn, cmap->green, cmap->count); 1561 if (err) 1562 return (err); 1563 1564 err = copyout(cmblu, cmap->blue, cmap->count); 1565 if (err) 1566 return (err); 1567 1568 return (0); 1569 1570 } else 1571 return (EPASSTHROUGH); 1572 } 1573 1574 /* 1575 * Set the palette of a emulation screen. 1576 * Here we do only color remapping and then call 1577 * amidisplaycc_setcmap to do the work. 1578 */ 1579 1580 static int 1581 amidisplaycc_setemulcmap(struct amidisplaycc_screen *scr, 1582 struct wsdisplay_cmap *cmap) 1583 { 1584 struct wsdisplay_cmap tmpcmap; 1585 1586 u_char red [MAXCOLORS]; 1587 u_char grn [MAXCOLORS]; 1588 u_char blu [MAXCOLORS]; 1589 1590 int rc; 1591 int i; 1592 1593 /* 1594 * Get old palette first. 1595 * Because of the color mapping going on in the emulation 1596 * screen the color range may not be contiguous in the real 1597 * palette. 1598 * So get the whole palette, insert the new colors 1599 * at the appropriate places and then set the whole 1600 * palette back. 1601 */ 1602 1603 tmpcmap.index = 0; 1604 tmpcmap.count = 1 << scr->depth; 1605 tmpcmap.red = red; 1606 tmpcmap.green = grn; 1607 tmpcmap.blue = blu; 1608 1609 rc = amidisplaycc_getcmap(scr->view, &tmpcmap); 1610 if (rc) 1611 return (rc); 1612 1613 for (i = cmap->index ; i < cmap->index + cmap->count ; i++) { 1614 1615 tmpcmap.red [ scr->colormap[ i ] ] = cmap->red [ i ]; 1616 tmpcmap.green [ scr->colormap[ i ] ] = cmap->green [ i ]; 1617 tmpcmap.blue [ scr->colormap[ i ] ] = cmap->blue [ i ]; 1618 } 1619 1620 rc = amidisplaycc_setcmap(scr->view, &tmpcmap); 1621 if (rc) 1622 return (rc); 1623 1624 return (0); 1625 } 1626 1627 1628 /* 1629 * Set the colormap for the given screen. 1630 */ 1631 1632 static int 1633 amidisplaycc_setcmap(view_t *view, struct wsdisplay_cmap *cmap) 1634 { 1635 u_long cmentries [MAXCOLORS]; 1636 1637 u_int colors; 1638 int index; 1639 int count; 1640 int err; 1641 colormap_t cm; 1642 1643 if (view == NULL) 1644 return (EINVAL); 1645 1646 if (!cmap || !cmap->red || !cmap->green || !cmap->blue) { 1647 dprintf("amidisplaycc_setcmap: other==NULL\n"); 1648 return (EINVAL); 1649 } 1650 1651 index = cmap->index; 1652 count = cmap->count; 1653 colors = (1 << view->bitmap->depth); 1654 1655 if (count > colors || index >= colors || index + count > colors) 1656 return (EINVAL); 1657 1658 if (count == 0) 1659 return (0); 1660 1661 cm.entry = cmentries; 1662 cm.first = index; 1663 cm.size = count; 1664 1665 /* 1666 * Get the old colormap. We need to do this at least to know 1667 * how many bits to use with the color values. 1668 */ 1669 1670 err = grf_get_colormap(view, &cm); 1671 if (err) 1672 return (err); 1673 1674 /* 1675 * The palette entries from wscons contain 8 bits per gun. 1676 * We need to convert them to the number of bits the view 1677 * expects. That is typically 4 or 8. Here we calculate the 1678 * conversion constants with which we divide the color values. 1679 */ 1680 1681 if (cm.type == CM_COLOR) { 1682 int c, green_div, blue_div, red_div; 1683 1684 red_div = 256 / (cm.red_mask + 1); 1685 green_div = 256 / (cm.green_mask + 1); 1686 blue_div = 256 / (cm.blue_mask + 1); 1687 1688 for (c = 0 ; c < count ; c++) 1689 cm.entry[c + index] = MAKE_COLOR_ENTRY( 1690 cmap->red[c] / red_div, 1691 cmap->green[c] / green_div, 1692 cmap->blue[c] / blue_div); 1693 1694 } else if (cm.type == CM_GREYSCALE) { 1695 int c, grey_div; 1696 1697 grey_div = 256 / (cm.grey_mask + 1); 1698 1699 /* Generate grey from average of r-g-b (?) */ 1700 for (c = 0 ; c < count ; c++) 1701 cm.entry[c + index] = MAKE_COLOR_ENTRY( 1702 0, 1703 0, 1704 (cmap->red[c] + 1705 cmap->green[c] + 1706 cmap->blue[c]) / 3 / grey_div); 1707 } else 1708 return (EINVAL); /* Hmhh */ 1709 1710 /* 1711 * Now we have a new colormap that contains all the entries. Set 1712 * it to the view. 1713 */ 1714 1715 err = grf_use_colormap(view, &cm); 1716 if (err) 1717 return err; 1718 1719 return (0); 1720 } 1721 1722 /* 1723 * Return the colormap of the given screen. 1724 */ 1725 1726 static int 1727 amidisplaycc_getcmap(view_t *view, struct wsdisplay_cmap *cmap) 1728 { 1729 u_long cmentries [MAXCOLORS]; 1730 1731 u_int colors; 1732 int index; 1733 int count; 1734 int err; 1735 colormap_t cm; 1736 1737 if (view == NULL) 1738 return (EINVAL); 1739 1740 if (!cmap || !cmap->red || !cmap->green || !cmap->blue) 1741 return (EINVAL); 1742 1743 index = cmap->index; 1744 count = cmap->count; 1745 colors = (1 << view->bitmap->depth); 1746 1747 if (count > colors || index >= colors || index + count > colors) 1748 return (EINVAL); 1749 1750 if (count == 0) 1751 return (0); 1752 1753 cm.entry = cmentries; 1754 cm.first = index; 1755 cm.size = count; 1756 1757 err = grf_get_colormap(view, &cm); 1758 if (err) 1759 return (err); 1760 1761 /* 1762 * Copy color data to wscons-style structure. Translate to 1763 * 8 bits/gun from whatever resolution the color natively is. 1764 */ 1765 if (cm.type == CM_COLOR) { 1766 int c, red_mul, green_mul, blue_mul; 1767 1768 red_mul = 256 / (cm.red_mask + 1); 1769 green_mul = 256 / (cm.green_mask + 1); 1770 blue_mul = 256 / (cm.blue_mask + 1); 1771 1772 for (c = 0 ; c < count ; c++) { 1773 cmap->red[c] = red_mul * 1774 CM_GET_RED(cm.entry[index+c]); 1775 cmap->green[c] = green_mul * 1776 CM_GET_GREEN(cm.entry[index+c]); 1777 cmap->blue[c] = blue_mul * 1778 CM_GET_BLUE(cm.entry[index+c]); 1779 } 1780 } else if (cm.type == CM_GREYSCALE) { 1781 int c, grey_mul; 1782 1783 grey_mul = 256 / (cm.grey_mask + 1); 1784 1785 for (c = 0 ; c < count ; c++) { 1786 cmap->red[c] = grey_mul * 1787 CM_GET_GREY(cm.entry[index+c]); 1788 cmap->green[c] = grey_mul * 1789 CM_GET_GREY(cm.entry[index+c]); 1790 cmap->blue[c] = grey_mul * 1791 CM_GET_GREY(cm.entry[index+c]); 1792 } 1793 } else 1794 return (EINVAL); 1795 1796 return (0); 1797 } 1798 1799 /* 1800 * Find and set a font for the given screen. 1801 * 1802 * If fontname is given, a font with that name and suitable 1803 * size (determined by the screen) is searched for. 1804 * If fontname is NULL, a font with suitable size is searched. 1805 * 1806 * On success, the found font is assigned to the screen and possible 1807 * old font is freed. 1808 */ 1809 static int 1810 amidisplaycc_setfont(struct amidisplaycc_screen *scr, const char *fontname) 1811 { 1812 struct wsdisplay_font *wsfont; 1813 int wsfontcookie; 1814 1815 KASSERT(scr); 1816 1817 wsfontcookie = wsfont_find(fontname, 1818 scr->fontwidth, 1819 scr->fontheight, 1820 1, 1821 WSDISPLAY_FONTORDER_L2R, 1822 WSDISPLAY_FONTORDER_L2R, 1823 WSFONT_FIND_BITMAP); 1824 1825 if (wsfontcookie == -1) 1826 return (EINVAL); 1827 1828 /* Suitable font found. Now lock it. */ 1829 if (wsfont_lock(wsfontcookie, &wsfont)) 1830 return (EINVAL); 1831 1832 KASSERT(wsfont); 1833 1834 if (scr->wsfont && scr->wsfontcookie != -1) 1835 wsfont_unlock(scr->wsfontcookie); 1836 1837 scr->wsfont = wsfont; 1838 scr->wsfontcookie = wsfontcookie; 1839 1840 return (0); 1841 } 1842 1843 /* 1844 * Return a font that is guaranteed to exist. 1845 */ 1846 static const struct wsdisplay_font * 1847 amidisplaycc_getbuiltinfont(void) 1848 { 1849 static struct wsdisplay_font font; 1850 1851 extern unsigned char kernel_font_width_8x8; 1852 extern unsigned char kernel_font_height_8x8; 1853 extern unsigned char kernel_font_lo_8x8; 1854 extern unsigned char kernel_font_hi_8x8; 1855 extern unsigned char kernel_font_8x8[]; 1856 1857 font.name = "kf8x8"; 1858 font.firstchar = kernel_font_lo_8x8; 1859 font.numchars = kernel_font_hi_8x8 - kernel_font_lo_8x8 + 1; 1860 font.fontwidth = kernel_font_width_8x8; 1861 font.stride = 1; 1862 font.fontheight = kernel_font_height_8x8; 1863 font.data = kernel_font_8x8; 1864 1865 /* these values aren't really used for anything */ 1866 font.encoding = WSDISPLAY_FONTENC_ISO; 1867 font.bitorder = WSDISPLAY_FONTORDER_KNOWN; 1868 font.byteorder = WSDISPLAY_FONTORDER_KNOWN; 1869 1870 return &font; 1871 } 1872 1873 /* ARGSUSED */ 1874 void 1875 amidisplaycc_pollc(void *cookie, int on) 1876 { 1877 if (amidisplaycc_consolescreen.isconsole) 1878 { 1879 if (on) 1880 { 1881 /* About to use console, so make it visible */ 1882 grf_display_view(amidisplaycc_consolescreen.view); 1883 } 1884 if (!on && 1885 amidisplaycc_consolescreen.isconsole && 1886 amidisplaycc_consolescreen.device != NULL && 1887 amidisplaycc_consolescreen.device->currentscreen != NULL) 1888 { 1889 /* Restore the correct view after done with console use */ 1890 grf_display_view(amidisplaycc_consolescreen.device->currentscreen->view); 1891 } 1892 } 1893 } 1894 1895 /* 1896 * These dummy functions are here just so that we can compete of 1897 * the console at init. 1898 * If we win the console then the wscons system will provide the 1899 * real ones which in turn will call the apropriate wskbd device. 1900 * These should never be called. 1901 */ 1902 1903 /* ARGSUSED */ 1904 void 1905 amidisplaycc_cnputc(dev_t cd, int ch) 1906 { 1907 } 1908 1909 /* ARGSUSED */ 1910 int 1911 amidisplaycc_cngetc(dev_t cd) 1912 { 1913 return (0); 1914 } 1915 1916 /* ARGSUSED */ 1917 void 1918 amidisplaycc_cnpollc(dev_t cd, int on) 1919 { 1920 } 1921 1922 1923 /* 1924 * Prints stuff if DEBUG is turned on. 1925 */ 1926 1927 /* ARGSUSED */ 1928 static void 1929 dprintf(const char *fmt, ...) 1930 { 1931 #ifdef DEBUG 1932 va_list ap; 1933 1934 va_start(ap, fmt); 1935 vprintf(fmt, ap); 1936 va_end(ap); 1937 #endif 1938 } 1939 1940 #endif /* AMIDISPLAYCC */ 1941