scgfbrndr.c revision 85809
1/*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/syscons/scgfbrndr.c 81030 2001-08-02 08:30:40Z yokota $ 27 */ 28 29#include "opt_syscons.h" 30#include "opt_vga.h" 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/kernel.h> 35#include <sys/fbio.h> 36#include <sys/consio.h> 37 38#include <machine/bus.h> 39 40#include <dev/fb/fbreg.h> 41#include <dev/fb/vgareg.h> 42#include <dev/syscons/syscons.h> 43 44#include <isa/isareg.h> 45 46#ifndef SC_RENDER_DEBUG 47#define SC_RENDER_DEBUG 0 48#endif 49 50static vr_clear_t vga_txtclear; 51static vr_draw_border_t vga_txtborder; 52static vr_draw_t vga_txtdraw; 53static vr_set_cursor_t vga_txtcursor_shape; 54static vr_draw_cursor_t vga_txtcursor; 55static vr_blink_cursor_t vga_txtblink; 56#ifndef SC_NO_CUTPASTE 57static vr_draw_mouse_t vga_txtmouse; 58#else 59#define vga_txtmouse (vr_draw_mouse_t *)vga_nop 60#endif 61 62#ifdef SC_PIXEL_MODE 63static vr_clear_t vga_pxlclear; 64static vr_draw_border_t vga_pxlborder; 65static vr_draw_t vga_egadraw; 66static vr_draw_t vga_vgadraw; 67static vr_set_cursor_t vga_pxlcursor_shape; 68static vr_draw_cursor_t vga_pxlcursor; 69static vr_blink_cursor_t vga_pxlblink; 70#ifndef SC_NO_CUTPASTE 71static vr_draw_mouse_t vga_pxlmouse; 72#else 73#define vga_pxlmouse (vr_draw_mouse_t *)vga_nop 74#endif 75#endif /* SC_PIXEL_MODE */ 76 77#ifndef SC_NO_MODE_CHANGE 78static vr_draw_border_t vga_grborder; 79#endif 80 81static void vga_nop(scr_stat *scp, ...); 82 83static sc_rndr_sw_t txtrndrsw = { 84 vga_txtclear, 85 vga_txtborder, 86 vga_txtdraw, 87 vga_txtcursor_shape, 88 vga_txtcursor, 89 vga_txtblink, 90 (vr_set_mouse_t *)vga_nop, 91 vga_txtmouse, 92}; 93RENDERER(mda, 0, txtrndrsw, vga_set); 94RENDERER(cga, 0, txtrndrsw, vga_set); 95RENDERER(ega, 0, txtrndrsw, vga_set); 96RENDERER(vga, 0, txtrndrsw, vga_set); 97 98#ifdef SC_PIXEL_MODE 99static sc_rndr_sw_t egarndrsw = { 100 vga_pxlclear, 101 vga_pxlborder, 102 vga_egadraw, 103 vga_pxlcursor_shape, 104 vga_pxlcursor, 105 vga_pxlblink, 106 (vr_set_mouse_t *)vga_nop, 107 vga_pxlmouse, 108}; 109RENDERER(ega, PIXEL_MODE, egarndrsw, vga_set); 110 111static sc_rndr_sw_t vgarndrsw = { 112 vga_pxlclear, 113 vga_pxlborder, 114 vga_vgadraw, 115 vga_pxlcursor_shape, 116 vga_pxlcursor, 117 vga_pxlblink, 118 (vr_set_mouse_t *)vga_nop, 119 vga_pxlmouse, 120}; 121RENDERER(vga, PIXEL_MODE, vgarndrsw, vga_set); 122#endif /* SC_PIXEL_MODE */ 123 124#ifndef SC_NO_MODE_CHANGE 125static sc_rndr_sw_t grrndrsw = { 126 (vr_clear_t *)vga_nop, 127 vga_grborder, 128 (vr_draw_t *)vga_nop, 129 (vr_set_cursor_t *)vga_nop, 130 (vr_draw_cursor_t *)vga_nop, 131 (vr_blink_cursor_t *)vga_nop, 132 (vr_set_mouse_t *)vga_nop, 133 (vr_draw_mouse_t *)vga_nop, 134}; 135RENDERER(cga, GRAPHICS_MODE, grrndrsw, vga_set); 136RENDERER(ega, GRAPHICS_MODE, grrndrsw, vga_set); 137RENDERER(vga, GRAPHICS_MODE, grrndrsw, vga_set); 138#endif /* SC_NO_MODE_CHANGE */ 139 140RENDERER_MODULE(vga, vga_set); 141 142#ifndef SC_NO_CUTPASTE 143static u_short mouse_and_mask[16] = { 144 0xc000, 0xe000, 0xf000, 0xf800, 0xfc00, 0xfe00, 0xff00, 0xff80, 145 0xfe00, 0x1e00, 0x1f00, 0x0f00, 0x0f00, 0x0000, 0x0000, 0x0000 146}; 147static u_short mouse_or_mask[16] = { 148 0x0000, 0x4000, 0x6000, 0x7000, 0x7800, 0x7c00, 0x7e00, 0x6800, 149 0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000 150}; 151#endif 152 153static void 154vga_nop(scr_stat *scp, ...) 155{ 156} 157 158/* text mode renderer */ 159 160static void 161vga_txtclear(scr_stat *scp, int c, int attr) 162{ 163 sc_vtb_clear(&scp->scr, c, attr); 164} 165 166static void 167vga_txtborder(scr_stat *scp, int color) 168{ 169 (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color); 170} 171 172static void 173vga_txtdraw(scr_stat *scp, int from, int count, int flip) 174{ 175 vm_offset_t p; 176 int c; 177 int a; 178 179 if (from + count > scp->xsize*scp->ysize) 180 count = scp->xsize*scp->ysize - from; 181 182 if (flip) { 183 for (p = sc_vtb_pointer(&scp->scr, from); count-- > 0; ++from) { 184 c = sc_vtb_getc(&scp->vtb, from); 185 a = sc_vtb_geta(&scp->vtb, from); 186 a = (a & 0x8800) | ((a & 0x7000) >> 4) 187 | ((a & 0x0700) << 4); 188 p = sc_vtb_putchar(&scp->scr, p, c, a); 189 } 190 } else { 191 sc_vtb_copy(&scp->vtb, from, &scp->scr, from, count); 192 } 193} 194 195static void 196vga_txtcursor_shape(scr_stat *scp, int base, int height, int blink) 197{ 198 if (base < 0 || base >= scp->font_size) 199 return; 200 /* the caller may set height <= 0 in order to disable the cursor */ 201#if 0 202 scp->curs_attr.base = base; 203 scp->curs_attr.height = height; 204#endif 205 (*vidsw[scp->sc->adapter]->set_hw_cursor_shape)(scp->sc->adp, 206 base, height, 207 scp->font_size, blink); 208} 209 210static void 211draw_txtcharcursor(scr_stat *scp, int at, u_short c, u_short a, int flip) 212{ 213 sc_softc_t *sc; 214 215 sc = scp->sc; 216 scp->cursor_saveunder_char = c; 217 scp->cursor_saveunder_attr = a; 218 219#ifndef SC_NO_FONT_LOADING 220 if (scp->curs_attr.flags & CONS_CHAR_CURSOR) { 221 unsigned char *font; 222 int h; 223 int i; 224 225 if (scp->font_size < 14) { 226 font = sc->font_8; 227 h = 8; 228 } else if (scp->font_size >= 16) { 229 font = sc->font_16; 230 h = 16; 231 } else { 232 font = sc->font_14; 233 h = 14; 234 } 235 if (scp->curs_attr.base >= h) 236 return; 237 if (flip) 238 a = (a & 0x8800) 239 | ((a & 0x7000) >> 4) | ((a & 0x0700) << 4); 240 bcopy(font + c*h, font + sc->cursor_char*h, h); 241 font = font + sc->cursor_char*h; 242 for (i = imax(h - scp->curs_attr.base - scp->curs_attr.height, 0); 243 i < h - scp->curs_attr.base; ++i) { 244 font[i] ^= 0xff; 245 } 246 /* XXX */ 247 (*vidsw[sc->adapter]->load_font)(sc->adp, 0, h, font, 248 sc->cursor_char, 1); 249 sc_vtb_putc(&scp->scr, at, sc->cursor_char, a); 250 } else 251#endif /* SC_NO_FONT_LOADING */ 252 { 253 if ((a & 0x7000) == 0x7000) { 254 a &= 0x8f00; 255 if ((a & 0x0700) == 0) 256 a |= 0x0700; 257 } else { 258 a |= 0x7000; 259 if ((a & 0x0700) == 0x0700) 260 a &= 0xf000; 261 } 262 if (flip) 263 a = (a & 0x8800) 264 | ((a & 0x7000) >> 4) | ((a & 0x0700) << 4); 265 sc_vtb_putc(&scp->scr, at, c, a); 266 } 267} 268 269static void 270vga_txtcursor(scr_stat *scp, int at, int blink, int on, int flip) 271{ 272 video_adapter_t *adp; 273 int cursor_attr; 274 275 if (scp->curs_attr.height <= 0) /* the text cursor is disabled */ 276 return; 277 278 adp = scp->sc->adp; 279 if (blink) { 280 scp->status |= VR_CURSOR_BLINK; 281 if (on) { 282 scp->status |= VR_CURSOR_ON; 283 (*vidsw[adp->va_index]->set_hw_cursor)(adp, 284 at%scp->xsize, 285 at/scp->xsize); 286 } else { 287 if (scp->status & VR_CURSOR_ON) 288 (*vidsw[adp->va_index]->set_hw_cursor)(adp, 289 -1, -1); 290 scp->status &= ~VR_CURSOR_ON; 291 } 292 } else { 293 scp->status &= ~VR_CURSOR_BLINK; 294 if (on) { 295 scp->status |= VR_CURSOR_ON; 296 draw_txtcharcursor(scp, at, 297 sc_vtb_getc(&scp->scr, at), 298 sc_vtb_geta(&scp->scr, at), 299 flip); 300 } else { 301 cursor_attr = scp->cursor_saveunder_attr; 302 if (flip) 303 cursor_attr = (cursor_attr & 0x8800) 304 | ((cursor_attr & 0x7000) >> 4) 305 | ((cursor_attr & 0x0700) << 4); 306 if (scp->status & VR_CURSOR_ON) 307 sc_vtb_putc(&scp->scr, at, 308 scp->cursor_saveunder_char, 309 cursor_attr); 310 scp->status &= ~VR_CURSOR_ON; 311 } 312 } 313} 314 315static void 316vga_txtblink(scr_stat *scp, int at, int flip) 317{ 318} 319 320#ifndef SC_NO_CUTPASTE 321 322static void 323draw_txtmouse(scr_stat *scp, int x, int y) 324{ 325#ifndef SC_ALT_MOUSE_IMAGE 326 if (ISMOUSEAVAIL(scp->sc->adp->va_flags)) { 327 u_char font_buf[128]; 328 u_short cursor[32]; 329 u_char c; 330 int pos; 331 int xoffset, yoffset; 332 int crtc_addr; 333 int i; 334 335 /* prepare mousepointer char's bitmaps */ 336 pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff; 337 bcopy(scp->font + sc_vtb_getc(&scp->scr, pos)*scp->font_size, 338 &font_buf[0], scp->font_size); 339 bcopy(scp->font + sc_vtb_getc(&scp->scr, pos + 1)*scp->font_size, 340 &font_buf[32], scp->font_size); 341 bcopy(scp->font 342 + sc_vtb_getc(&scp->scr, pos + scp->xsize)*scp->font_size, 343 &font_buf[64], scp->font_size); 344 bcopy(scp->font 345 + sc_vtb_getc(&scp->scr, pos + scp->xsize + 1)*scp->font_size, 346 &font_buf[96], scp->font_size); 347 for (i = 0; i < scp->font_size; ++i) { 348 cursor[i] = font_buf[i]<<8 | font_buf[i+32]; 349 cursor[i + scp->font_size] = font_buf[i+64]<<8 | font_buf[i+96]; 350 } 351 352 /* now and-or in the mousepointer image */ 353 xoffset = x%8; 354 yoffset = y%scp->font_size; 355 for (i = 0; i < 16; ++i) { 356 cursor[i + yoffset] = 357 (cursor[i + yoffset] & ~(mouse_and_mask[i] >> xoffset)) 358 | (mouse_or_mask[i] >> xoffset); 359 } 360 for (i = 0; i < scp->font_size; ++i) { 361 font_buf[i] = (cursor[i] & 0xff00) >> 8; 362 font_buf[i + 32] = cursor[i] & 0xff; 363 font_buf[i + 64] = (cursor[i + scp->font_size] & 0xff00) >> 8; 364 font_buf[i + 96] = cursor[i + scp->font_size] & 0xff; 365 } 366 367#if 1 368 /* wait for vertical retrace to avoid jitter on some videocards */ 369 crtc_addr = scp->sc->adp->va_crtc_addr; 370 while (!(inb(crtc_addr + 6) & 0x08)) /* idle */ ; 371#endif 372 c = scp->sc->mouse_char; 373 (*vidsw[scp->sc->adapter]->load_font)(scp->sc->adp, 0, 32, font_buf, 374 c, 4); 375 376 sc_vtb_putc(&scp->scr, pos, c, sc_vtb_geta(&scp->scr, pos)); 377 /* FIXME: may be out of range! */ 378 sc_vtb_putc(&scp->scr, pos + scp->xsize, c + 2, 379 sc_vtb_geta(&scp->scr, pos + scp->xsize)); 380 if (x < (scp->xsize - 1)*8) { 381 sc_vtb_putc(&scp->scr, pos + 1, c + 1, 382 sc_vtb_geta(&scp->scr, pos + 1)); 383 sc_vtb_putc(&scp->scr, pos + scp->xsize + 1, c + 3, 384 sc_vtb_geta(&scp->scr, pos + scp->xsize + 1)); 385 } 386 } else 387#endif /* SC_ALT_MOUSE_IMAGE */ 388 { 389 /* Red, magenta and brown are mapped to green to to keep it readable */ 390 static const int col_conv[16] = { 391 6, 6, 6, 6, 2, 2, 2, 6, 14, 14, 14, 14, 10, 10, 10, 14 392 }; 393 int pos; 394 int color; 395 int a; 396 397 pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff; 398 a = sc_vtb_geta(&scp->scr, pos); 399 if (scp->sc->adp->va_flags & V_ADP_COLOR) 400 color = (col_conv[(a & 0xf000) >> 12] << 12) 401 | ((a & 0x0f00) | 0x0800); 402 else 403 color = ((a & 0xf000) >> 4) | ((a & 0x0f00) << 4); 404 sc_vtb_putc(&scp->scr, pos, sc_vtb_getc(&scp->scr, pos), color); 405 } 406} 407 408static void 409remove_txtmouse(scr_stat *scp, int x, int y) 410{ 411} 412 413static void 414vga_txtmouse(scr_stat *scp, int x, int y, int on) 415{ 416 if (on) 417 draw_txtmouse(scp, x, y); 418 else 419 remove_txtmouse(scp, x, y); 420} 421 422#endif /* SC_NO_CUTPASTE */ 423 424#ifdef SC_PIXEL_MODE 425 426/* pixel (raster text) mode renderer */ 427 428static void 429vga_pxlclear(scr_stat *scp, int c, int attr) 430{ 431 vm_offset_t p; 432 int line_width; 433 int lines; 434 int i; 435 436 /* XXX: we are just filling the screen with the background color... */ 437 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 438 outw(GDCIDX, 0x0003); /* data rotate/function select */ 439 outw(GDCIDX, 0x0f01); /* set/reset enable */ 440 outw(GDCIDX, 0xff08); /* bit mask */ 441 outw(GDCIDX, ((attr & 0xf000) >> 4) | 0x00); /* set/reset */ 442 line_width = scp->sc->adp->va_line_width; 443 lines = scp->ysize*scp->font_size; 444 p = scp->sc->adp->va_window + line_width*scp->yoff*scp->font_size 445 + scp->xoff; 446 for (i = 0; i < lines; ++i) { 447 bzero_io((void *)p, scp->xsize); 448 p += line_width; 449 } 450 outw(GDCIDX, 0x0000); /* set/reset */ 451 outw(GDCIDX, 0x0001); /* set/reset enable */ 452} 453 454static void 455vga_pxlborder(scr_stat *scp, int color) 456{ 457 vm_offset_t p; 458 int line_width; 459 int x; 460 int y; 461 int i; 462 463 (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color); 464 465 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 466 outw(GDCIDX, 0x0003); /* data rotate/function select */ 467 outw(GDCIDX, 0x0f01); /* set/reset enable */ 468 outw(GDCIDX, 0xff08); /* bit mask */ 469 outw(GDCIDX, (color << 8) | 0x00); /* set/reset */ 470 line_width = scp->sc->adp->va_line_width; 471 p = scp->sc->adp->va_window; 472 if (scp->yoff > 0) 473 bzero_io((void *)p, line_width*scp->yoff*scp->font_size); 474 y = (scp->yoff + scp->ysize)*scp->font_size; 475 if (scp->ypixel > y) 476 bzero_io((void *)(p + line_width*y), line_width*(scp->ypixel - y)); 477 y = scp->yoff*scp->font_size; 478 x = scp->xpixel/8 - scp->xoff - scp->xsize; 479 for (i = 0; i < scp->ysize*scp->font_size; ++i) { 480 if (scp->xoff > 0) 481 bzero_io((void *)(p + line_width*(y + i)), scp->xoff); 482 if (x > 0) 483 bzero_io((void *)(p + line_width*(y + i) 484 + scp->xoff + scp->xsize), x); 485 } 486 outw(GDCIDX, 0x0000); /* set/reset */ 487 outw(GDCIDX, 0x0001); /* set/reset enable */ 488} 489 490static void 491vga_egadraw(scr_stat *scp, int from, int count, int flip) 492{ 493 vm_offset_t d; 494 vm_offset_t e; 495 u_char *f; 496 u_short bg; 497 u_short col1, col2; 498 int line_width; 499 int i, j; 500 int a; 501 u_char c; 502 503 line_width = scp->sc->adp->va_line_width; 504 d = scp->sc->adp->va_window 505 + scp->xoff 506 + scp->yoff*scp->font_size*line_width 507 + (from%scp->xsize) 508 + scp->font_size*line_width*(from/scp->xsize); 509 510 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 511 outw(GDCIDX, 0x0003); /* data rotate/function select */ 512 outw(GDCIDX, 0x0f01); /* set/reset enable */ 513 bg = -1; 514 if (from + count > scp->xsize*scp->ysize) 515 count = scp->xsize*scp->ysize - from; 516 for (i = from; count-- > 0; ++i) { 517 a = sc_vtb_geta(&scp->vtb, i); 518 if (flip) { 519 col1 = ((a & 0x7000) >> 4) | (a & 0x0800); 520 col2 = ((a & 0x8000) >> 4) | (a & 0x0700); 521 } else { 522 col1 = (a & 0x0f00); 523 col2 = (a & 0xf000) >> 4; 524 } 525 /* set background color in EGA/VGA latch */ 526 if (bg != col2) { 527 bg = col2; 528 outw(GDCIDX, bg | 0x00); /* set/reset */ 529 outw(GDCIDX, 0xff08); /* bit mask */ 530 writeb(d, 0); 531 c = readb(d); /* set bg color in the latch */ 532 } 533 /* foreground color */ 534 outw(GDCIDX, col1 | 0x00); /* set/reset */ 535 e = d; 536 f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]); 537 for (j = 0; j < scp->font_size; ++j, ++f) { 538 outw(GDCIDX, (*f << 8) | 0x08); /* bit mask */ 539 writeb(e, 0); 540 e += line_width; 541 } 542 ++d; 543 if ((i % scp->xsize) == scp->xsize - 1) 544 d += scp->xoff*2 545 + (scp->font_size - 1)*line_width; 546 } 547 outw(GDCIDX, 0x0000); /* set/reset */ 548 outw(GDCIDX, 0x0001); /* set/reset enable */ 549 outw(GDCIDX, 0xff08); /* bit mask */ 550} 551 552static void 553vga_vgadraw(scr_stat *scp, int from, int count, int flip) 554{ 555 vm_offset_t d; 556 vm_offset_t e; 557 u_char *f; 558 u_short bg; 559 u_short col1, col2; 560 int line_width; 561 int i, j; 562 int a; 563 u_char c; 564 565 line_width = scp->sc->adp->va_line_width; 566 d = scp->sc->adp->va_window 567 + scp->xoff 568 + scp->yoff*scp->font_size*line_width 569 + (from%scp->xsize) 570 + scp->font_size*line_width*(from/scp->xsize); 571 572 outw(GDCIDX, 0x0305); /* read mode 0, write mode 3 */ 573 outw(GDCIDX, 0x0003); /* data rotate/function select */ 574 outw(GDCIDX, 0x0f01); /* set/reset enable */ 575 outw(GDCIDX, 0xff08); /* bit mask */ 576 bg = -1; 577 if (from + count > scp->xsize*scp->ysize) 578 count = scp->xsize*scp->ysize - from; 579 for (i = from; count-- > 0; ++i) { 580 a = sc_vtb_geta(&scp->vtb, i); 581 if (flip) { 582 col1 = ((a & 0x7000) >> 4) | (a & 0x0800); 583 col2 = ((a & 0x8000) >> 4) | (a & 0x0700); 584 } else { 585 col1 = (a & 0x0f00); 586 col2 = (a & 0xf000) >> 4; 587 } 588 /* set background color in EGA/VGA latch */ 589 if (bg != col2) { 590 bg = col2; 591 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 592 outw(GDCIDX, bg | 0x00); /* set/reset */ 593 writeb(d, 0); 594 c = readb(d); /* set bg color in the latch */ 595 outw(GDCIDX, 0x0305); /* read mode 0, write mode 3 */ 596 } 597 /* foreground color */ 598 outw(GDCIDX, col1 | 0x00); /* set/reset */ 599 e = d; 600 f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]); 601 for (j = 0; j < scp->font_size; ++j, ++f) { 602 writeb(e, *f); 603 e += line_width; 604 } 605 ++d; 606 if ((i % scp->xsize) == scp->xsize - 1) 607 d += scp->xoff*2 608 + (scp->font_size - 1)*line_width; 609 } 610 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 611 outw(GDCIDX, 0x0000); /* set/reset */ 612 outw(GDCIDX, 0x0001); /* set/reset enable */ 613} 614 615static void 616vga_pxlcursor_shape(scr_stat *scp, int base, int height, int blink) 617{ 618 if (base < 0 || base >= scp->font_size) 619 return; 620 /* the caller may set height <= 0 in order to disable the cursor */ 621#if 0 622 scp->curs_attr.base = base; 623 scp->curs_attr.height = height; 624#endif 625} 626 627static void 628draw_pxlcursor(scr_stat *scp, int at, int on, int flip) 629{ 630 vm_offset_t d; 631 u_char *f; 632 int line_width; 633 int height; 634 int col; 635 int a; 636 int i; 637 u_char c; 638 639 line_width = scp->sc->adp->va_line_width; 640 d = scp->sc->adp->va_window 641 + scp->xoff 642 + scp->yoff*scp->font_size*line_width 643 + (at%scp->xsize) 644 + scp->font_size*line_width*(at/scp->xsize) 645 + (scp->font_size - scp->curs_attr.base - 1)*line_width; 646 647 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 648 outw(GDCIDX, 0x0003); /* data rotate/function select */ 649 outw(GDCIDX, 0x0f01); /* set/reset enable */ 650 /* set background color in EGA/VGA latch */ 651 a = sc_vtb_geta(&scp->vtb, at); 652 if (flip) 653 col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00); 654 else 655 col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4); 656 outw(GDCIDX, col | 0x00); /* set/reset */ 657 outw(GDCIDX, 0xff08); /* bit mask */ 658 writeb(d, 0); 659 c = readb(d); /* set bg color in the latch */ 660 /* foreground color */ 661 if (flip) 662 col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4); 663 else 664 col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00); 665 outw(GDCIDX, col | 0x00); /* set/reset */ 666 f = &(scp->font[sc_vtb_getc(&scp->vtb, at)*scp->font_size 667 + scp->font_size - scp->curs_attr.base - 1]); 668 height = imin(scp->curs_attr.height, scp->font_size); 669 for (i = 0; i < height; ++i, --f) { 670 outw(GDCIDX, (*f << 8) | 0x08); /* bit mask */ 671 writeb(d, 0); 672 d -= line_width; 673 } 674 outw(GDCIDX, 0x0000); /* set/reset */ 675 outw(GDCIDX, 0x0001); /* set/reset enable */ 676 outw(GDCIDX, 0xff08); /* bit mask */ 677} 678 679static int pxlblinkrate = 0; 680 681static void 682vga_pxlcursor(scr_stat *scp, int at, int blink, int on, int flip) 683{ 684 if (scp->curs_attr.height <= 0) /* the text cursor is disabled */ 685 return; 686 687 if (on) { 688 if (!blink) { 689 scp->status |= VR_CURSOR_ON; 690 draw_pxlcursor(scp, at, on, flip); 691 } else if (++pxlblinkrate & 4) { 692 pxlblinkrate = 0; 693 scp->status ^= VR_CURSOR_ON; 694 draw_pxlcursor(scp, at, 695 scp->status & VR_CURSOR_ON, 696 flip); 697 } 698 } else { 699 if (scp->status & VR_CURSOR_ON) 700 draw_pxlcursor(scp, at, on, flip); 701 scp->status &= ~VR_CURSOR_ON; 702 } 703 if (blink) 704 scp->status |= VR_CURSOR_BLINK; 705 else 706 scp->status &= ~VR_CURSOR_BLINK; 707} 708 709static void 710vga_pxlblink(scr_stat *scp, int at, int flip) 711{ 712 if (!(scp->status & VR_CURSOR_BLINK)) 713 return; 714 if (!(++pxlblinkrate & 4)) 715 return; 716 pxlblinkrate = 0; 717 scp->status ^= VR_CURSOR_ON; 718 draw_pxlcursor(scp, at, scp->status & VR_CURSOR_ON, flip); 719} 720 721#ifndef SC_NO_CUTPASTE 722 723static void 724draw_pxlmouse(scr_stat *scp, int x, int y) 725{ 726 vm_offset_t p; 727 int line_width; 728 int xoff, yoff; 729 int ymax; 730 u_short m; 731 int i, j; 732 733 line_width = scp->sc->adp->va_line_width; 734 xoff = (x - scp->xoff*8)%8; 735 yoff = y - (y/line_width)*line_width; 736 ymax = imin(y + 16, scp->ypixel); 737 738 outw(GDCIDX, 0x0805); /* read mode 1, write mode 0 */ 739 outw(GDCIDX, 0x0001); /* set/reset enable */ 740 outw(GDCIDX, 0x0002); /* color compare */ 741 outw(GDCIDX, 0x0007); /* color don't care */ 742 outw(GDCIDX, 0xff08); /* bit mask */ 743 outw(GDCIDX, 0x0803); /* data rotate/function select (and) */ 744 p = scp->sc->adp->va_window + line_width*y + x/8; 745 if (x < scp->xpixel - 8) { 746 for (i = y, j = 0; i < ymax; ++i, ++j) { 747 m = ~(mouse_and_mask[j] >> xoff); 748#ifdef __i386__ 749 *(u_char *)p &= m >> 8; 750 *(u_char *)(p + 1) &= m; 751#elif defined(__alpha__) 752 writeb(p, readb(p) & (m >> 8)); 753 writeb(p + 1, readb(p + 1) & (m >> 8)); 754#endif 755 p += line_width; 756 } 757 } else { 758 xoff += 8; 759 for (i = y, j = 0; i < ymax; ++i, ++j) { 760 m = ~(mouse_and_mask[j] >> xoff); 761#ifdef __i386__ 762 *(u_char *)p &= m; 763#elif defined(__alpha__) 764 writeb(p, readb(p) & (m >> 8)); 765#endif 766 p += line_width; 767 } 768 } 769 outw(GDCIDX, 0x1003); /* data rotate/function select (or) */ 770 p = scp->sc->adp->va_window + line_width*y + x/8; 771 if (x < scp->xpixel - 8) { 772 for (i = y, j = 0; i < ymax; ++i, ++j) { 773 m = mouse_or_mask[j] >> xoff; 774#ifdef __i386__ 775 *(u_char *)p &= m >> 8; 776 *(u_char *)(p + 1) &= m; 777#elif defined(__alpha__) 778 writeb(p, readb(p) & (m >> 8)); 779 writeb(p + 1, readb(p + 1) & (m >> 8)); 780#endif 781 p += line_width; 782 } 783 } else { 784 for (i = y, j = 0; i < ymax; ++i, ++j) { 785 m = mouse_or_mask[j] >> xoff; 786#ifdef __i386__ 787 *(u_char *)p &= m; 788#elif defined(__alpha__) 789 writeb(p, readb(p) & (m >> 8)); 790#endif 791 p += line_width; 792 } 793 } 794 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 795 outw(GDCIDX, 0x0003); /* data rotate/function select */ 796} 797 798static void 799remove_pxlmouse(scr_stat *scp, int x, int y) 800{ 801 vm_offset_t p; 802 int col, row; 803 int pos; 804 int line_width; 805 int ymax; 806 int i; 807 808 /* erase the mouse cursor image */ 809 col = x/8 - scp->xoff; 810 row = y/scp->font_size - scp->yoff; 811 pos = row*scp->xsize + col; 812 i = (col < scp->xsize - 1) ? 2 : 1; 813 (*scp->rndr->draw)(scp, pos, i, FALSE); 814 if (row < scp->ysize - 1) 815 (*scp->rndr->draw)(scp, pos + scp->xsize, i, FALSE); 816 817 /* paint border if necessary */ 818 line_width = scp->sc->adp->va_line_width; 819 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 820 outw(GDCIDX, 0x0003); /* data rotate/function select */ 821 outw(GDCIDX, 0x0f01); /* set/reset enable */ 822 outw(GDCIDX, 0xff08); /* bit mask */ 823 outw(GDCIDX, (scp->border << 8) | 0x00); /* set/reset */ 824 if (row == scp->ysize - 1) { 825 i = (scp->ysize + scp->yoff)*scp->font_size; 826 ymax = imin(i + scp->font_size, scp->ypixel); 827 p = scp->sc->adp->va_window + i*line_width + scp->xoff + col; 828 if (col < scp->xsize - 1) { 829 for (; i < ymax; ++i) { 830 writeb(p, 0); 831 writeb(p + 1, 0); 832 p += line_width; 833 } 834 } else { 835 for (; i < ymax; ++i) { 836 writeb(p, 0); 837 p += line_width; 838 } 839 } 840 } 841 if ((col == scp->xsize - 1) && (scp->xoff > 0)) { 842 i = (row + scp->yoff)*scp->font_size; 843 ymax = imin(i + scp->font_size*2, scp->ypixel); 844 p = scp->sc->adp->va_window + i*line_width 845 + scp->xoff + scp->xsize; 846 for (; i < ymax; ++i) { 847 writeb(p, 0); 848 p += line_width; 849 } 850 } 851 outw(GDCIDX, 0x0000); /* set/reset */ 852 outw(GDCIDX, 0x0001); /* set/reset enable */ 853} 854 855static void 856vga_pxlmouse(scr_stat *scp, int x, int y, int on) 857{ 858 if (on) 859 draw_pxlmouse(scp, x, y); 860 else 861 remove_pxlmouse(scp, x, y); 862} 863 864#endif /* SC_NO_CUTPASTE */ 865#endif /* SC_PIXEL_MODE */ 866 867#ifndef SC_NO_MODE_CHANGE 868 869/* graphics mode renderer */ 870 871static void 872vga_grborder(scr_stat *scp, int color) 873{ 874 (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color); 875} 876 877#endif 878