scgfbrndr.c revision 79534
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 79534 2001-07-10 14:13:34Z 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->cursor_base = base; 203 scp->cursor_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 (sc->flags & SC_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->cursor_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->cursor_base - scp->cursor_height, 0); 243 i < h - scp->cursor_base; ++i) { 244 font[i] ^= 0xff; 245 } 246 sc->font_loading_in_progress = TRUE; 247 /* XXX */ 248 (*vidsw[sc->adapter]->load_font)(sc->adp, 0, h, font, 249 sc->cursor_char, 1); 250 sc->font_loading_in_progress = FALSE; 251 sc_vtb_putc(&scp->scr, at, sc->cursor_char, a); 252 } else 253#endif /* SC_NO_FONT_LOADING */ 254 { 255 if ((a & 0x7000) == 0x7000) { 256 a &= 0x8f00; 257 if ((a & 0x0700) == 0) 258 a |= 0x0700; 259 } else { 260 a |= 0x7000; 261 if ((a & 0x0700) == 0x0700) 262 a &= 0xf000; 263 } 264 if (flip) 265 a = (a & 0x8800) 266 | ((a & 0x7000) >> 4) | ((a & 0x0700) << 4); 267 sc_vtb_putc(&scp->scr, at, c, a); 268 } 269} 270 271static void 272vga_txtcursor(scr_stat *scp, int at, int blink, int on, int flip) 273{ 274 video_adapter_t *adp; 275 int cursor_attr; 276 277 if (scp->cursor_height <= 0) /* the text cursor is disabled */ 278 return; 279 280 adp = scp->sc->adp; 281 if (blink) { 282 scp->status |= VR_CURSOR_BLINK; 283 if (on) { 284 scp->status |= VR_CURSOR_ON; 285 (*vidsw[adp->va_index]->set_hw_cursor)(adp, 286 at%scp->xsize, 287 at/scp->xsize); 288 } else { 289 if (scp->status & VR_CURSOR_ON) 290 (*vidsw[adp->va_index]->set_hw_cursor)(adp, 291 -1, -1); 292 scp->status &= ~VR_CURSOR_ON; 293 } 294 } else { 295 scp->status &= ~VR_CURSOR_BLINK; 296 if (on) { 297 scp->status |= VR_CURSOR_ON; 298 draw_txtcharcursor(scp, at, 299 sc_vtb_getc(&scp->scr, at), 300 sc_vtb_geta(&scp->scr, at), 301 flip); 302 } else { 303 cursor_attr = scp->cursor_saveunder_attr; 304 if (flip) 305 cursor_attr = (cursor_attr & 0x8800) 306 | ((cursor_attr & 0x7000) >> 4) 307 | ((cursor_attr & 0x0700) << 4); 308 if (scp->status & VR_CURSOR_ON) 309 sc_vtb_putc(&scp->scr, at, 310 scp->cursor_saveunder_char, 311 cursor_attr); 312 scp->status &= ~VR_CURSOR_ON; 313 } 314 } 315} 316 317static void 318vga_txtblink(scr_stat *scp, int at, int flip) 319{ 320} 321 322#ifndef SC_NO_CUTPASTE 323 324static void 325draw_txtmouse(scr_stat *scp, int x, int y) 326{ 327#ifndef SC_ALT_MOUSE_IMAGE 328 if (ISMOUSEAVAIL(scp->sc->adp->va_flags)) { 329 u_char font_buf[128]; 330 u_short cursor[32]; 331 u_char c; 332 int pos; 333 int xoffset, yoffset; 334 int crtc_addr; 335 int i; 336 337 /* prepare mousepointer char's bitmaps */ 338 pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff; 339 bcopy(scp->font + sc_vtb_getc(&scp->scr, pos)*scp->font_size, 340 &font_buf[0], scp->font_size); 341 bcopy(scp->font + sc_vtb_getc(&scp->scr, pos + 1)*scp->font_size, 342 &font_buf[32], scp->font_size); 343 bcopy(scp->font 344 + sc_vtb_getc(&scp->scr, pos + scp->xsize)*scp->font_size, 345 &font_buf[64], scp->font_size); 346 bcopy(scp->font 347 + sc_vtb_getc(&scp->scr, pos + scp->xsize + 1)*scp->font_size, 348 &font_buf[96], scp->font_size); 349 for (i = 0; i < scp->font_size; ++i) { 350 cursor[i] = font_buf[i]<<8 | font_buf[i+32]; 351 cursor[i + scp->font_size] = font_buf[i+64]<<8 | font_buf[i+96]; 352 } 353 354 /* now and-or in the mousepointer image */ 355 xoffset = x%8; 356 yoffset = y%scp->font_size; 357 for (i = 0; i < 16; ++i) { 358 cursor[i + yoffset] = 359 (cursor[i + yoffset] & ~(mouse_and_mask[i] >> xoffset)) 360 | (mouse_or_mask[i] >> xoffset); 361 } 362 for (i = 0; i < scp->font_size; ++i) { 363 font_buf[i] = (cursor[i] & 0xff00) >> 8; 364 font_buf[i + 32] = cursor[i] & 0xff; 365 font_buf[i + 64] = (cursor[i + scp->font_size] & 0xff00) >> 8; 366 font_buf[i + 96] = cursor[i + scp->font_size] & 0xff; 367 } 368 369#if 1 370 /* wait for vertical retrace to avoid jitter on some videocards */ 371 crtc_addr = scp->sc->adp->va_crtc_addr; 372 while (!(inb(crtc_addr + 6) & 0x08)) /* idle */ ; 373#endif 374 c = scp->sc->mouse_char; 375 (*vidsw[scp->sc->adapter]->load_font)(scp->sc->adp, 0, 32, font_buf, 376 c, 4); 377 378 sc_vtb_putc(&scp->scr, pos, c, sc_vtb_geta(&scp->scr, pos)); 379 /* FIXME: may be out of range! */ 380 sc_vtb_putc(&scp->scr, pos + scp->xsize, c + 2, 381 sc_vtb_geta(&scp->scr, pos + scp->xsize)); 382 if (x < (scp->xsize - 1)*8) { 383 sc_vtb_putc(&scp->scr, pos + 1, c + 1, 384 sc_vtb_geta(&scp->scr, pos + 1)); 385 sc_vtb_putc(&scp->scr, pos + scp->xsize + 1, c + 3, 386 sc_vtb_geta(&scp->scr, pos + scp->xsize + 1)); 387 } 388 } else 389#endif /* SC_ALT_MOUSE_IMAGE */ 390 { 391 /* Red, magenta and brown are mapped to green to to keep it readable */ 392 static const int col_conv[16] = { 393 6, 6, 6, 6, 2, 2, 2, 6, 14, 14, 14, 14, 10, 10, 10, 14 394 }; 395 int pos; 396 int color; 397 int a; 398 399 pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff; 400 a = sc_vtb_geta(&scp->scr, pos); 401 if (scp->sc->adp->va_flags & V_ADP_COLOR) 402 color = (col_conv[(a & 0xf000) >> 12] << 12) 403 | ((a & 0x0f00) | 0x0800); 404 else 405 color = ((a & 0xf000) >> 4) | ((a & 0x0f00) << 4); 406 sc_vtb_putc(&scp->scr, pos, sc_vtb_getc(&scp->scr, pos), color); 407 } 408} 409 410static void 411remove_txtmouse(scr_stat *scp, int x, int y) 412{ 413} 414 415static void 416vga_txtmouse(scr_stat *scp, int x, int y, int on) 417{ 418 if (on) 419 draw_txtmouse(scp, x, y); 420 else 421 remove_txtmouse(scp, x, y); 422} 423 424#endif /* SC_NO_CUTPASTE */ 425 426#ifdef SC_PIXEL_MODE 427 428/* pixel (raster text) mode renderer */ 429 430static void 431vga_pxlclear(scr_stat *scp, int c, int attr) 432{ 433 vm_offset_t p; 434 int line_width; 435 int lines; 436 int i; 437 438 /* XXX: we are just filling the screen with the background color... */ 439 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 440 outw(GDCIDX, 0x0003); /* data rotate/function select */ 441 outw(GDCIDX, 0x0f01); /* set/reset enable */ 442 outw(GDCIDX, 0xff08); /* bit mask */ 443 outw(GDCIDX, ((attr & 0xf000) >> 4) | 0x00); /* set/reset */ 444 line_width = scp->sc->adp->va_line_width; 445 lines = scp->ysize*scp->font_size; 446 p = scp->sc->adp->va_window + line_width*scp->yoff*scp->font_size 447 + scp->xoff; 448 for (i = 0; i < lines; ++i) { 449 bzero_io((void *)p, scp->xsize); 450 p += line_width; 451 } 452 outw(GDCIDX, 0x0000); /* set/reset */ 453 outw(GDCIDX, 0x0001); /* set/reset enable */ 454} 455 456static void 457vga_pxlborder(scr_stat *scp, int color) 458{ 459 vm_offset_t p; 460 int line_width; 461 int x; 462 int y; 463 int i; 464 465 (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color); 466 467 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 468 outw(GDCIDX, 0x0003); /* data rotate/function select */ 469 outw(GDCIDX, 0x0f01); /* set/reset enable */ 470 outw(GDCIDX, 0xff08); /* bit mask */ 471 outw(GDCIDX, (color << 8) | 0x00); /* set/reset */ 472 line_width = scp->sc->adp->va_line_width; 473 p = scp->sc->adp->va_window; 474 if (scp->yoff > 0) 475 bzero_io((void *)p, line_width*scp->yoff*scp->font_size); 476 y = (scp->yoff + scp->ysize)*scp->font_size; 477 if (scp->ypixel > y) 478 bzero_io((void *)(p + line_width*y), line_width*(scp->ypixel - y)); 479 y = scp->yoff*scp->font_size; 480 x = scp->xpixel/8 - scp->xoff - scp->xsize; 481 for (i = 0; i < scp->ysize*scp->font_size; ++i) { 482 if (scp->xoff > 0) 483 bzero_io((void *)(p + line_width*(y + i)), scp->xoff); 484 if (x > 0) 485 bzero_io((void *)(p + line_width*(y + i) 486 + scp->xoff + scp->xsize), x); 487 } 488 outw(GDCIDX, 0x0000); /* set/reset */ 489 outw(GDCIDX, 0x0001); /* set/reset enable */ 490} 491 492static void 493vga_egadraw(scr_stat *scp, int from, int count, int flip) 494{ 495 vm_offset_t d; 496 vm_offset_t e; 497 u_char *f; 498 u_short bg; 499 u_short col1, col2; 500 int line_width; 501 int i, j; 502 int a; 503 u_char c; 504 505 line_width = scp->sc->adp->va_line_width; 506 d = scp->sc->adp->va_window 507 + scp->xoff 508 + scp->yoff*scp->font_size*line_width 509 + (from%scp->xsize) 510 + scp->font_size*line_width*(from/scp->xsize); 511 512 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 513 outw(GDCIDX, 0x0003); /* data rotate/function select */ 514 outw(GDCIDX, 0x0f01); /* set/reset enable */ 515 bg = -1; 516 if (from + count > scp->xsize*scp->ysize) 517 count = scp->xsize*scp->ysize - from; 518 for (i = from; count-- > 0; ++i) { 519 a = sc_vtb_geta(&scp->vtb, i); 520 if (flip) { 521 col1 = ((a & 0x7000) >> 4) | (a & 0x0800); 522 col2 = ((a & 0x8000) >> 4) | (a & 0x0700); 523 } else { 524 col1 = (a & 0x0f00); 525 col2 = (a & 0xf000) >> 4; 526 } 527 /* set background color in EGA/VGA latch */ 528 if (bg != col2) { 529 bg = col2; 530 outw(GDCIDX, bg | 0x00); /* set/reset */ 531 outw(GDCIDX, 0xff08); /* bit mask */ 532 writeb(d, 0); 533 c = readb(d); /* set bg color in the latch */ 534 } 535 /* foreground color */ 536 outw(GDCIDX, col1 | 0x00); /* set/reset */ 537 e = d; 538 f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]); 539 for (j = 0; j < scp->font_size; ++j, ++f) { 540 outw(GDCIDX, (*f << 8) | 0x08); /* bit mask */ 541 writeb(e, 0); 542 e += line_width; 543 } 544 ++d; 545 if ((i % scp->xsize) == scp->xsize - 1) 546 d += scp->xoff*2 547 + (scp->font_size - 1)*line_width; 548 } 549 outw(GDCIDX, 0x0000); /* set/reset */ 550 outw(GDCIDX, 0x0001); /* set/reset enable */ 551 outw(GDCIDX, 0xff08); /* bit mask */ 552} 553 554static void 555vga_vgadraw(scr_stat *scp, int from, int count, int flip) 556{ 557 vm_offset_t d; 558 vm_offset_t e; 559 u_char *f; 560 u_short bg; 561 u_short col1, col2; 562 int line_width; 563 int i, j; 564 int a; 565 u_char c; 566 567 line_width = scp->sc->adp->va_line_width; 568 d = scp->sc->adp->va_window 569 + scp->xoff 570 + scp->yoff*scp->font_size*line_width 571 + (from%scp->xsize) 572 + scp->font_size*line_width*(from/scp->xsize); 573 574 outw(GDCIDX, 0x0305); /* read mode 0, write mode 3 */ 575 outw(GDCIDX, 0x0003); /* data rotate/function select */ 576 outw(GDCIDX, 0x0f01); /* set/reset enable */ 577 outw(GDCIDX, 0xff08); /* bit mask */ 578 bg = -1; 579 if (from + count > scp->xsize*scp->ysize) 580 count = scp->xsize*scp->ysize - from; 581 for (i = from; count-- > 0; ++i) { 582 a = sc_vtb_geta(&scp->vtb, i); 583 if (flip) { 584 col1 = ((a & 0x7000) >> 4) | (a & 0x0800); 585 col2 = ((a & 0x8000) >> 4) | (a & 0x0700); 586 } else { 587 col1 = (a & 0x0f00); 588 col2 = (a & 0xf000) >> 4; 589 } 590 /* set background color in EGA/VGA latch */ 591 if (bg != col2) { 592 bg = col2; 593 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 594 outw(GDCIDX, bg | 0x00); /* set/reset */ 595 writeb(d, 0); 596 c = readb(d); /* set bg color in the latch */ 597 outw(GDCIDX, 0x0305); /* read mode 0, write mode 3 */ 598 } 599 /* foreground color */ 600 outw(GDCIDX, col1 | 0x00); /* set/reset */ 601 e = d; 602 f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]); 603 for (j = 0; j < scp->font_size; ++j, ++f) { 604 writeb(e, *f); 605 e += line_width; 606 } 607 ++d; 608 if ((i % scp->xsize) == scp->xsize - 1) 609 d += scp->xoff*2 610 + (scp->font_size - 1)*line_width; 611 } 612 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 613 outw(GDCIDX, 0x0000); /* set/reset */ 614 outw(GDCIDX, 0x0001); /* set/reset enable */ 615} 616 617static void 618vga_pxlcursor_shape(scr_stat *scp, int base, int height, int blink) 619{ 620 if (base < 0 || base >= scp->font_size) 621 return; 622 /* the caller may set height <= 0 in order to disable the cursor */ 623#if 0 624 scp->cursor_base = base; 625 scp->cursor_height = height; 626#endif 627} 628 629static void 630draw_pxlcursor(scr_stat *scp, int at, int on, int flip) 631{ 632 vm_offset_t d; 633 u_char *f; 634 int line_width; 635 int height; 636 int col; 637 int a; 638 int i; 639 u_char c; 640 641 line_width = scp->sc->adp->va_line_width; 642 d = scp->sc->adp->va_window 643 + scp->xoff 644 + scp->yoff*scp->font_size*line_width 645 + (at%scp->xsize) 646 + scp->font_size*line_width*(at/scp->xsize) 647 + (scp->font_size - scp->cursor_base - 1)*line_width; 648 649 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 650 outw(GDCIDX, 0x0003); /* data rotate/function select */ 651 outw(GDCIDX, 0x0f01); /* set/reset enable */ 652 /* set background color in EGA/VGA latch */ 653 a = sc_vtb_geta(&scp->vtb, at); 654 if (flip) 655 col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00); 656 else 657 col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4); 658 outw(GDCIDX, col | 0x00); /* set/reset */ 659 outw(GDCIDX, 0xff08); /* bit mask */ 660 writeb(d, 0); 661 c = readb(d); /* set bg color in the latch */ 662 /* foreground color */ 663 if (flip) 664 col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4); 665 else 666 col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00); 667 outw(GDCIDX, col | 0x00); /* set/reset */ 668 f = &(scp->font[sc_vtb_getc(&scp->vtb, at)*scp->font_size 669 + scp->font_size - scp->cursor_base - 1]); 670 height = imin(scp->cursor_height, scp->font_size); 671 for (i = 0; i < height; ++i, --f) { 672 outw(GDCIDX, (*f << 8) | 0x08); /* bit mask */ 673 writeb(d, 0); 674 d -= line_width; 675 } 676 outw(GDCIDX, 0x0000); /* set/reset */ 677 outw(GDCIDX, 0x0001); /* set/reset enable */ 678 outw(GDCIDX, 0xff08); /* bit mask */ 679} 680 681static int pxlblinkrate = 0; 682 683static void 684vga_pxlcursor(scr_stat *scp, int at, int blink, int on, int flip) 685{ 686 if (scp->cursor_height <= 0) /* the text cursor is disabled */ 687 return; 688 689 if (on) { 690 if (!blink) { 691 scp->status |= VR_CURSOR_ON; 692 draw_pxlcursor(scp, at, on, flip); 693 } else if (++pxlblinkrate & 4) { 694 pxlblinkrate = 0; 695 scp->status ^= VR_CURSOR_ON; 696 draw_pxlcursor(scp, at, 697 scp->status & VR_CURSOR_ON, 698 flip); 699 } 700 } else { 701 if (scp->status & VR_CURSOR_ON) 702 draw_pxlcursor(scp, at, on, flip); 703 scp->status &= ~VR_CURSOR_ON; 704 } 705 if (blink) 706 scp->status |= VR_CURSOR_BLINK; 707 else 708 scp->status &= ~VR_CURSOR_BLINK; 709} 710 711static void 712vga_pxlblink(scr_stat *scp, int at, int flip) 713{ 714 if (!(scp->status & VR_CURSOR_BLINK)) 715 return; 716 if (!(++pxlblinkrate & 4)) 717 return; 718 pxlblinkrate = 0; 719 scp->status ^= VR_CURSOR_ON; 720 draw_pxlcursor(scp, at, scp->status & VR_CURSOR_ON, flip); 721} 722 723#ifndef SC_NO_CUTPASTE 724 725static void 726draw_pxlmouse(scr_stat *scp, int x, int y) 727{ 728 vm_offset_t p; 729 int line_width; 730 int xoff, yoff; 731 int ymax; 732 u_short m; 733 int i, j; 734 735 line_width = scp->sc->adp->va_line_width; 736 xoff = (x - scp->xoff*8)%8; 737 yoff = y - (y/line_width)*line_width; 738 ymax = imin(y + 16, scp->ypixel); 739 740 outw(GDCIDX, 0x0805); /* read mode 1, write mode 0 */ 741 outw(GDCIDX, 0x0001); /* set/reset enable */ 742 outw(GDCIDX, 0x0002); /* color compare */ 743 outw(GDCIDX, 0x0007); /* color don't care */ 744 outw(GDCIDX, 0xff08); /* bit mask */ 745 outw(GDCIDX, 0x0803); /* data rotate/function select (and) */ 746 p = scp->sc->adp->va_window + line_width*y + x/8; 747 if (x < scp->xpixel - 8) { 748 for (i = y, j = 0; i < ymax; ++i, ++j) { 749 m = ~(mouse_and_mask[j] >> xoff); 750#ifdef __i386__ 751 *(u_char *)p &= m >> 8; 752 *(u_char *)(p + 1) &= m; 753#elif defined(__alpha__) 754 writeb(p, readb(p) & (m >> 8)); 755 writeb(p + 1, readb(p + 1) & (m >> 8)); 756#endif 757 p += line_width; 758 } 759 } else { 760 xoff += 8; 761 for (i = y, j = 0; i < ymax; ++i, ++j) { 762 m = ~(mouse_and_mask[j] >> xoff); 763#ifdef __i386__ 764 *(u_char *)p &= m; 765#elif defined(__alpha__) 766 writeb(p, readb(p) & (m >> 8)); 767#endif 768 p += line_width; 769 } 770 } 771 outw(GDCIDX, 0x1003); /* data rotate/function select (or) */ 772 p = scp->sc->adp->va_window + line_width*y + x/8; 773 if (x < scp->xpixel - 8) { 774 for (i = y, j = 0; i < ymax; ++i, ++j) { 775 m = mouse_or_mask[j] >> xoff; 776#ifdef __i386__ 777 *(u_char *)p &= m >> 8; 778 *(u_char *)(p + 1) &= m; 779#elif defined(__alpha__) 780 writeb(p, readb(p) & (m >> 8)); 781 writeb(p + 1, readb(p + 1) & (m >> 8)); 782#endif 783 p += line_width; 784 } 785 } else { 786 for (i = y, j = 0; i < ymax; ++i, ++j) { 787 m = mouse_or_mask[j] >> xoff; 788#ifdef __i386__ 789 *(u_char *)p &= m; 790#elif defined(__alpha__) 791 writeb(p, readb(p) & (m >> 8)); 792#endif 793 p += line_width; 794 } 795 } 796 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 797 outw(GDCIDX, 0x0003); /* data rotate/function select */ 798} 799 800static void 801remove_pxlmouse(scr_stat *scp, int x, int y) 802{ 803 vm_offset_t p; 804 int col, row; 805 int pos; 806 int line_width; 807 int ymax; 808 int i; 809 810 /* erase the mouse cursor image */ 811 col = x/8 - scp->xoff; 812 row = y/scp->font_size - scp->yoff; 813 pos = row*scp->xsize + col; 814 i = (col < scp->xsize - 1) ? 2 : 1; 815 (*scp->rndr->draw)(scp, pos, i, FALSE); 816 if (row < scp->ysize - 1) 817 (*scp->rndr->draw)(scp, pos + scp->xsize, i, FALSE); 818 819 /* paint border if necessary */ 820 line_width = scp->sc->adp->va_line_width; 821 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 822 outw(GDCIDX, 0x0003); /* data rotate/function select */ 823 outw(GDCIDX, 0x0f01); /* set/reset enable */ 824 outw(GDCIDX, 0xff08); /* bit mask */ 825 outw(GDCIDX, (scp->border << 8) | 0x00); /* set/reset */ 826 if (row == scp->ysize - 1) { 827 i = (scp->ysize + scp->yoff)*scp->font_size; 828 ymax = imin(i + scp->font_size, scp->ypixel); 829 p = scp->sc->adp->va_window + i*line_width + scp->xoff + col; 830 if (col < scp->xsize - 1) { 831 for (; i < ymax; ++i) { 832 writeb(p, 0); 833 writeb(p + 1, 0); 834 p += line_width; 835 } 836 } else { 837 for (; i < ymax; ++i) { 838 writeb(p, 0); 839 p += line_width; 840 } 841 } 842 } 843 if ((col == scp->xsize - 1) && (scp->xoff > 0)) { 844 i = (row + scp->yoff)*scp->font_size; 845 ymax = imin(i + scp->font_size*2, scp->ypixel); 846 p = scp->sc->adp->va_window + i*line_width 847 + scp->xoff + scp->xsize; 848 for (; i < ymax; ++i) { 849 writeb(p, 0); 850 p += line_width; 851 } 852 } 853 outw(GDCIDX, 0x0000); /* set/reset */ 854 outw(GDCIDX, 0x0001); /* set/reset enable */ 855} 856 857static void 858vga_pxlmouse(scr_stat *scp, int x, int y, int on) 859{ 860 if (on) 861 draw_pxlmouse(scp, x, y); 862 else 863 remove_pxlmouse(scp, x, y); 864} 865 866#endif /* SC_NO_CUTPASTE */ 867#endif /* SC_PIXEL_MODE */ 868 869#ifndef SC_NO_MODE_CHANGE 870 871/* graphics mode renderer */ 872 873static void 874vga_grborder(scr_stat *scp, int color) 875{ 876 (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color); 877} 878 879#endif 880