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 * $FreeBSD$ 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 50 static vr_clear_t vga_txtclear; 51 static vr_draw_border_t vga_txtborder; 52 static vr_draw_t vga_txtdraw; 53 static vr_set_cursor_t vga_txtcursor_shape; 54 static vr_draw_cursor_t vga_txtcursor; 55 static vr_blink_cursor_t vga_txtblink; 56 #ifndef SC_NO_CUTPASTE 57 static 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 63 static vr_clear_t vga_pxlclear; 64 static vr_draw_border_t vga_pxlborder; 65 static vr_draw_t vga_egadraw; 66 static vr_draw_t vga_vgadraw; 67 static vr_set_cursor_t vga_pxlcursor_shape; 68 static vr_draw_cursor_t vga_pxlcursor; 69 static vr_blink_cursor_t vga_pxlblink; 70 #ifndef SC_NO_CUTPASTE 71 static 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 78 static vr_draw_border_t vga_grborder; 79 #endif 80 81 static void vga_nop(scr_stat *scp, ...); 82 83 static struct linker_set vga_set; 84 85 static sc_rndr_sw_t txtrndrsw = { 86 vga_txtclear, 87 vga_txtborder, 88 vga_txtdraw, 89 vga_txtcursor_shape, 90 vga_txtcursor, 91 vga_txtblink, 92 (vr_set_mouse_t *)vga_nop, 93 vga_txtmouse, 94 }; 95 RENDERER(mda, 0, txtrndrsw, vga_set); 96 RENDERER(cga, 0, txtrndrsw, vga_set); 97 RENDERER(ega, 0, txtrndrsw, vga_set); 98 RENDERER(vga, 0, txtrndrsw, vga_set); 99 100 #ifdef SC_PIXEL_MODE 101 static sc_rndr_sw_t egarndrsw = { 102 vga_pxlclear, 103 vga_pxlborder, 104 vga_egadraw, 105 vga_pxlcursor_shape, 106 vga_pxlcursor, 107 vga_pxlblink, 108 (vr_set_mouse_t *)vga_nop, 109 vga_pxlmouse, 110 }; 111 RENDERER(ega, PIXEL_MODE, egarndrsw, vga_set); 112 113 static sc_rndr_sw_t vgarndrsw = { 114 vga_pxlclear, 115 vga_pxlborder, 116 vga_vgadraw, 117 vga_pxlcursor_shape, 118 vga_pxlcursor, 119 vga_pxlblink, 120 (vr_set_mouse_t *)vga_nop, 121 vga_pxlmouse, 122 }; 123 RENDERER(vga, PIXEL_MODE, vgarndrsw, vga_set); 124 #endif /* SC_PIXEL_MODE */ 125 126 #ifndef SC_NO_MODE_CHANGE 127 static sc_rndr_sw_t grrndrsw = { 128 (vr_clear_t *)vga_nop, 129 vga_grborder, 130 (vr_draw_t *)vga_nop, 131 (vr_set_cursor_t *)vga_nop, 132 (vr_draw_cursor_t *)vga_nop, 133 (vr_blink_cursor_t *)vga_nop, 134 (vr_set_mouse_t *)vga_nop, 135 (vr_draw_mouse_t *)vga_nop, 136 }; 137 RENDERER(cga, GRAPHICS_MODE, grrndrsw, vga_set); 138 RENDERER(ega, GRAPHICS_MODE, grrndrsw, vga_set); 139 RENDERER(vga, GRAPHICS_MODE, grrndrsw, vga_set); 140 #endif /* SC_NO_MODE_CHANGE */ 141 142 RENDERER_MODULE(vga, vga_set); 143 144 #ifndef SC_NO_CUTPASTE 145 static u_short mouse_and_mask[16] = { 146 0xc000, 0xe000, 0xf000, 0xf800, 0xfc00, 0xfe00, 0xff00, 0xff80, 147 0xfe00, 0x1e00, 0x1f00, 0x0f00, 0x0f00, 0x0000, 0x0000, 0x0000 148 }; 149 static u_short mouse_or_mask[16] = { 150 0x0000, 0x4000, 0x6000, 0x7000, 0x7800, 0x7c00, 0x7e00, 0x6800, 151 0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000 152 }; 153 #endif 154 155 static void 156 vga_nop(scr_stat *scp, ...) 157 { 158 } 159 160 /* text mode renderer */ 161 162 static void 163 vga_txtclear(scr_stat *scp, int c, int attr) 164 { 165 sc_vtb_clear(&scp->scr, c, attr); 166 } 167 168 static void 169 vga_txtborder(scr_stat *scp, int color) 170 { 171 (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color); 172 } 173 174 static void 175 vga_txtdraw(scr_stat *scp, int from, int count, int flip) 176 { 177 vm_offset_t p; 178 int c; 179 int a; 180 181 if (from + count > scp->xsize*scp->ysize) 182 count = scp->xsize*scp->ysize - from; 183 184 if (flip) { 185 for (p = sc_vtb_pointer(&scp->scr, from); count-- > 0; ++from) { 186 c = sc_vtb_getc(&scp->vtb, from); 187 a = sc_vtb_geta(&scp->vtb, from); 188 a = (a & 0x8800) | ((a & 0x7000) >> 4) 189 | ((a & 0x0700) << 4); 190 p = sc_vtb_putchar(&scp->scr, p, c, a); 191 } 192 } else { 193 sc_vtb_copy(&scp->vtb, from, &scp->scr, from, count); 194 } 195 } 196 197 static void 198 vga_txtcursor_shape(scr_stat *scp, int base, int height, int blink) 199 { 200 if (base < 0 || base >= scp->font_size) 201 return; 202 /* the caller may set height <= 0 in order to disable the cursor */ 203 #if 0 204 scp->cursor_base = base; 205 scp->cursor_height = height; 206 #endif 207 (*vidsw[scp->sc->adapter]->set_hw_cursor_shape)(scp->sc->adp, 208 base, height, 209 scp->font_size, blink); 210 } 211 212 static void 213 draw_txtcharcursor(scr_stat *scp, int at, u_short c, u_short a, int flip) 214 { 215 sc_softc_t *sc; 216 217 sc = scp->sc; 218 scp->cursor_saveunder_char = c; 219 scp->cursor_saveunder_attr = a; 220 221 #ifndef SC_NO_FONT_LOADING 222 if (sc->flags & SC_CHAR_CURSOR) { 223 unsigned char *font; 224 int h; 225 int i; 226 227 if (scp->font_size < 14) { 228 font = sc->font_8; 229 h = 8; 230 } else if (scp->font_size >= 16) { 231 font = sc->font_16; 232 h = 16; 233 } else { 234 font = sc->font_14; 235 h = 14; 236 } 237 if (scp->cursor_base >= h) 238 return; 239 if (flip) 240 a = (a & 0x8800) 241 | ((a & 0x7000) >> 4) | ((a & 0x0700) << 4); 242 bcopy(font + c*h, font + sc->cursor_char*h, h); 243 font = font + sc->cursor_char*h; 244 for (i = imax(h - scp->cursor_base - scp->cursor_height, 0); 245 i < h - scp->cursor_base; ++i) { 246 font[i] ^= 0xff; 247 } 248 sc->font_loading_in_progress = TRUE; 249 /* XXX */ 250 (*vidsw[sc->adapter]->load_font)(sc->adp, 0, h, font, 251 sc->cursor_char, 1); 252 sc->font_loading_in_progress = FALSE; 253 sc_vtb_putc(&scp->scr, at, sc->cursor_char, a); 254 } else 255 #endif /* SC_NO_FONT_LOADING */ 256 { 257 if ((a & 0x7000) == 0x7000) { 258 a &= 0x8f00; 259 if ((a & 0x0700) == 0) 260 a |= 0x0700; 261 } else { 262 a |= 0x7000; 263 if ((a & 0x0700) == 0x0700) 264 a &= 0xf000; 265 } 266 if (flip) 267 a = (a & 0x8800) 268 | ((a & 0x7000) >> 4) | ((a & 0x0700) << 4); 269 sc_vtb_putc(&scp->scr, at, c, a); 270 } 271 } 272 273 static void 274 vga_txtcursor(scr_stat *scp, int at, int blink, int on, int flip) 275 { 276 video_adapter_t *adp; 277 int cursor_attr; 278 279 if (scp->cursor_height <= 0) /* the text cursor is disabled */ 280 return; 281 282 adp = scp->sc->adp; 283 if (blink) { 284 scp->status |= VR_CURSOR_BLINK; 285 if (on) { 286 scp->status |= VR_CURSOR_ON; 287 (*vidsw[adp->va_index]->set_hw_cursor)(adp, 288 at%scp->xsize, 289 at/scp->xsize); 290 } else { 291 if (scp->status & VR_CURSOR_ON) 292 (*vidsw[adp->va_index]->set_hw_cursor)(adp, 293 -1, -1); 294 scp->status &= ~VR_CURSOR_ON; 295 } 296 } else { 297 scp->status &= ~VR_CURSOR_BLINK; 298 if (on) { 299 scp->status |= VR_CURSOR_ON; 300 draw_txtcharcursor(scp, at, 301 sc_vtb_getc(&scp->scr, at), 302 sc_vtb_geta(&scp->scr, at), 303 flip); 304 } else { 305 cursor_attr = scp->cursor_saveunder_attr; 306 if (flip) 307 cursor_attr = (cursor_attr & 0x8800) 308 | ((cursor_attr & 0x7000) >> 4) 309 | ((cursor_attr & 0x0700) << 4); 310 if (scp->status & VR_CURSOR_ON) 311 sc_vtb_putc(&scp->scr, at, 312 scp->cursor_saveunder_char, 313 cursor_attr); 314 scp->status &= ~VR_CURSOR_ON; 315 } 316 } 317 } 318 319 static void 320 vga_txtblink(scr_stat *scp, int at, int flip) 321 { 322 } 323 324 #ifndef SC_NO_CUTPASTE 325 326 static void 327 draw_txtmouse(scr_stat *scp, int x, int y) 328 { 329 #ifndef SC_ALT_MOUSE_IMAGE 330 u_char font_buf[128]; 331 u_short cursor[32]; 332 u_char c; 333 int pos; 334 int xoffset, yoffset; 335 int crtc_addr; 336 int i; 337 338 /* prepare mousepointer char's bitmaps */ 339 pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff; 340 bcopy(scp->font + sc_vtb_getc(&scp->scr, pos)*scp->font_size, 341 &font_buf[0], scp->font_size); 342 bcopy(scp->font + sc_vtb_getc(&scp->scr, pos + 1)*scp->font_size, 343 &font_buf[32], scp->font_size); 344 bcopy(scp->font 345 + sc_vtb_getc(&scp->scr, pos + scp->xsize)*scp->font_size, 346 &font_buf[64], scp->font_size); 347 bcopy(scp->font 348 + sc_vtb_getc(&scp->scr, pos + scp->xsize + 1)*scp->font_size, 349 &font_buf[96], scp->font_size); 350 for (i = 0; i < scp->font_size; ++i) { 351 cursor[i] = font_buf[i]<<8 | font_buf[i+32]; 352 cursor[i + scp->font_size] = font_buf[i+64]<<8 | font_buf[i+96]; 353 } 354 355 /* now and-or in the mousepointer image */ 356 xoffset = x%8; 357 yoffset = y%scp->font_size; 358 for (i = 0; i < 16; ++i) { 359 cursor[i + yoffset] = 360 (cursor[i + yoffset] & ~(mouse_and_mask[i] >> xoffset)) 361 | (mouse_or_mask[i] >> xoffset); 362 } 363 for (i = 0; i < scp->font_size; ++i) { 364 font_buf[i] = (cursor[i] & 0xff00) >> 8; 365 font_buf[i + 32] = cursor[i] & 0xff; 366 font_buf[i + 64] = (cursor[i + scp->font_size] & 0xff00) >> 8; 367 font_buf[i + 96] = cursor[i + scp->font_size] & 0xff; 368 } 369 370 #if 1 371 /* wait for vertical retrace to avoid jitter on some videocards */ 372 crtc_addr = scp->sc->adp->va_crtc_addr; 373 while (!(inb(crtc_addr + 6) & 0x08)) /* idle */ ; 374 #endif 375 c = scp->sc->mouse_char; 376 (*vidsw[scp->sc->adapter]->load_font)(scp->sc->adp, 0, 32, font_buf, 377 c, 4); 378 379 sc_vtb_putc(&scp->scr, pos, c, sc_vtb_geta(&scp->scr, pos)); 380 /* FIXME: may be out of range! */ 381 sc_vtb_putc(&scp->scr, pos + scp->xsize, c + 2, 382 sc_vtb_geta(&scp->scr, pos + scp->xsize)); 383 if (x < (scp->xsize - 1)*8) { 384 sc_vtb_putc(&scp->scr, pos + 1, c + 1, 385 sc_vtb_geta(&scp->scr, pos + 1)); 386 sc_vtb_putc(&scp->scr, pos + scp->xsize + 1, c + 3, 387 sc_vtb_geta(&scp->scr, pos + scp->xsize + 1)); 388 } 389 #else /* SC_ALT_MOUSE_IMAGE */ 390 /* Red, magenta and brown are mapped to green to to keep it readable */ 391 static const int col_conv[16] = { 392 6, 6, 6, 6, 2, 2, 2, 6, 14, 14, 14, 14, 10, 10, 10, 14 393 }; 394 int pos; 395 int color; 396 int a; 397 398 pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff; 399 a = sc_vtb_geta(&scp->scr, pos); 400 if (scp->sc->adp->va_flags & V_ADP_COLOR) 401 color = (col_conv[(a & 0xf000) >> 12] << 12) 402 | ((a & 0x0f00) | 0x0800); 403 else 404 color = ((a & 0xf000) >> 4) | ((a & 0x0f00) << 4); 405 sc_vtb_putc(&scp->scr, pos, sc_vtb_getc(&scp->scr, pos), color); 406 #endif /* SC_ALT_MOUSE_IMAGE */ 407 } 408 409 static void 410 remove_txtmouse(scr_stat *scp, int x, int y) 411 { 412 } 413 414 static void 415 vga_txtmouse(scr_stat *scp, int x, int y, int on) 416 { 417 if (on) 418 draw_txtmouse(scp, x, y); 419 else 420 remove_txtmouse(scp, x, y); 421 } 422 423 #endif /* SC_NO_CUTPASTE */ 424 425 #ifdef SC_PIXEL_MODE 426 427 /* pixel (raster text) mode renderer */ 428 429 static void 430 vga_pxlclear(scr_stat *scp, int c, int attr) 431 { 432 vm_offset_t p; 433 int line_width; 434 int lines; 435 int i; 436 437 /* XXX: we are just filling the screen with the background color... */ 438 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 439 outw(GDCIDX, 0x0003); /* data rotate/function select */ 440 outw(GDCIDX, 0x0f01); /* set/reset enable */ 441 outw(GDCIDX, 0xff08); /* bit mask */ 442 outw(GDCIDX, ((attr & 0xf000) >> 4) | 0x00); /* set/reset */ 443 line_width = scp->sc->adp->va_line_width; 444 lines = scp->ysize*scp->font_size; 445 p = scp->sc->adp->va_window + line_width*scp->yoff*scp->font_size 446 + scp->xoff; 447 for (i = 0; i < lines; ++i) { 448 bzero_io((void *)p, scp->xsize); 449 p += line_width; 450 } 451 outw(GDCIDX, 0x0000); /* set/reset */ 452 outw(GDCIDX, 0x0001); /* set/reset enable */ 453 } 454 455 static void 456 vga_pxlborder(scr_stat *scp, int color) 457 { 458 vm_offset_t p; 459 int line_width; 460 int x; 461 int y; 462 int i; 463 464 (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color); 465 466 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 467 outw(GDCIDX, 0x0003); /* data rotate/function select */ 468 outw(GDCIDX, 0x0f01); /* set/reset enable */ 469 outw(GDCIDX, 0xff08); /* bit mask */ 470 outw(GDCIDX, (color << 8) | 0x00); /* set/reset */ 471 line_width = scp->sc->adp->va_line_width; 472 p = scp->sc->adp->va_window; 473 if (scp->yoff > 0) 474 bzero_io((void *)p, line_width*scp->yoff*scp->font_size); 475 y = (scp->yoff + scp->ysize)*scp->font_size; 476 if (scp->ypixel > y) 477 bzero_io((void *)(p + line_width*y), line_width*(scp->ypixel - y)); 478 y = scp->yoff*scp->font_size; 479 x = scp->xpixel/8 - scp->xoff - scp->xsize; 480 for (i = 0; i < scp->ysize*scp->font_size; ++i) { 481 if (scp->xoff > 0) 482 bzero_io((void *)(p + line_width*(y + i)), scp->xoff); 483 if (x > 0) 484 bzero_io((void *)(p + line_width*(y + i) 485 + scp->xoff + scp->xsize), x); 486 } 487 outw(GDCIDX, 0x0000); /* set/reset */ 488 outw(GDCIDX, 0x0001); /* set/reset enable */ 489 } 490 491 static void 492 vga_egadraw(scr_stat *scp, int from, int count, int flip) 493 { 494 vm_offset_t d; 495 vm_offset_t e; 496 u_char *f; 497 u_short bg; 498 u_short col1, col2; 499 int line_width; 500 int i, j; 501 int a; 502 u_char c; 503 504 line_width = scp->sc->adp->va_line_width; 505 d = scp->sc->adp->va_window 506 + scp->xoff 507 + scp->yoff*scp->font_size*line_width 508 + (from%scp->xsize) 509 + scp->font_size*line_width*(from/scp->xsize); 510 511 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 512 outw(GDCIDX, 0x0003); /* data rotate/function select */ 513 outw(GDCIDX, 0x0f01); /* set/reset enable */ 514 bg = -1; 515 if (from + count > scp->xsize*scp->ysize) 516 count = scp->xsize*scp->ysize - from; 517 for (i = from; count-- > 0; ++i) { 518 a = sc_vtb_geta(&scp->vtb, i); 519 if (flip) { 520 col1 = ((a & 0x7000) >> 4) | (a & 0x0800); 521 col2 = ((a & 0x8000) >> 4) | (a & 0x0700); 522 } else { 523 col1 = (a & 0x0f00); 524 col2 = (a & 0xf000) >> 4; 525 } 526 /* set background color in EGA/VGA latch */ 527 if (bg != col2) { 528 bg = col2; 529 outw(GDCIDX, bg | 0x00); /* set/reset */ 530 outw(GDCIDX, 0xff08); /* bit mask */ 531 writeb(d, 0); 532 c = readb(d); /* set bg color in the latch */ 533 } 534 /* foreground color */ 535 outw(GDCIDX, col1 | 0x00); /* set/reset */ 536 e = d; 537 f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]); 538 for (j = 0; j < scp->font_size; ++j, ++f) { 539 outw(GDCIDX, (*f << 8) | 0x08); /* bit mask */ 540 writeb(e, 0); 541 e += line_width; 542 } 543 ++d; 544 if ((i % scp->xsize) == scp->xsize - 1) 545 d += scp->xoff*2 546 + (scp->font_size - 1)*line_width; 547 } 548 outw(GDCIDX, 0x0000); /* set/reset */ 549 outw(GDCIDX, 0x0001); /* set/reset enable */ 550 outw(GDCIDX, 0xff08); /* bit mask */ 551 } 552 553 static void 554 vga_vgadraw(scr_stat *scp, int from, int count, int flip) 555 { 556 vm_offset_t d; 557 vm_offset_t e; 558 u_char *f; 559 u_short bg; 560 u_short col1, col2; 561 int line_width; 562 int i, j; 563 int a; 564 u_char c; 565 566 line_width = scp->sc->adp->va_line_width; 567 d = scp->sc->adp->va_window 568 + scp->xoff 569 + scp->yoff*scp->font_size*line_width 570 + (from%scp->xsize) 571 + scp->font_size*line_width*(from/scp->xsize); 572 573 outw(GDCIDX, 0x0305); /* read mode 0, write mode 3 */ 574 outw(GDCIDX, 0x0003); /* data rotate/function select */ 575 outw(GDCIDX, 0x0f01); /* set/reset enable */ 576 outw(GDCIDX, 0xff08); /* bit mask */ 577 bg = -1; 578 if (from + count > scp->xsize*scp->ysize) 579 count = scp->xsize*scp->ysize - from; 580 for (i = from; count-- > 0; ++i) { 581 a = sc_vtb_geta(&scp->vtb, i); 582 if (flip) { 583 col1 = ((a & 0x7000) >> 4) | (a & 0x0800); 584 col2 = ((a & 0x8000) >> 4) | (a & 0x0700); 585 } else { 586 col1 = (a & 0x0f00); 587 col2 = (a & 0xf000) >> 4; 588 } 589 /* set background color in EGA/VGA latch */ 590 if (bg != col2) { 591 bg = col2; 592 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 593 outw(GDCIDX, bg | 0x00); /* set/reset */ 594 writeb(d, 0); 595 c = readb(d); /* set bg color in the latch */ 596 outw(GDCIDX, 0x0305); /* read mode 0, write mode 3 */ 597 } 598 /* foreground color */ 599 outw(GDCIDX, col1 | 0x00); /* set/reset */ 600 e = d; 601 f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]); 602 for (j = 0; j < scp->font_size; ++j, ++f) { 603 writeb(e, *f); 604 e += line_width; 605 } 606 ++d; 607 if ((i % scp->xsize) == scp->xsize - 1) 608 d += scp->xoff*2 609 + (scp->font_size - 1)*line_width; 610 } 611 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 612 outw(GDCIDX, 0x0000); /* set/reset */ 613 outw(GDCIDX, 0x0001); /* set/reset enable */ 614 } 615 616 static void 617 vga_pxlcursor_shape(scr_stat *scp, int base, int height, int blink) 618 { 619 if (base < 0 || base >= scp->font_size) 620 return; 621 /* the caller may set height <= 0 in order to disable the cursor */ 622 #if 0 623 scp->cursor_base = base; 624 scp->cursor_height = height; 625 #endif 626 } 627 628 static void 629 draw_pxlcursor(scr_stat *scp, int at, int on, int flip) 630 { 631 vm_offset_t d; 632 u_char *f; 633 int line_width; 634 int height; 635 int col; 636 int a; 637 int i; 638 u_char c; 639 640 line_width = scp->sc->adp->va_line_width; 641 d = scp->sc->adp->va_window 642 + scp->xoff 643 + scp->yoff*scp->font_size*line_width 644 + (at%scp->xsize) 645 + scp->font_size*line_width*(at/scp->xsize) 646 + (scp->font_size - scp->cursor_base - 1)*line_width; 647 648 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 649 outw(GDCIDX, 0x0003); /* data rotate/function select */ 650 outw(GDCIDX, 0x0f01); /* set/reset enable */ 651 /* set background color in EGA/VGA latch */ 652 a = sc_vtb_geta(&scp->vtb, at); 653 if (flip) 654 col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00); 655 else 656 col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4); 657 outw(GDCIDX, col | 0x00); /* set/reset */ 658 outw(GDCIDX, 0xff08); /* bit mask */ 659 writeb(d, 0); 660 c = readb(d); /* set bg color in the latch */ 661 /* foreground color */ 662 if (flip) 663 col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4); 664 else 665 col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00); 666 outw(GDCIDX, col | 0x00); /* set/reset */ 667 f = &(scp->font[sc_vtb_getc(&scp->vtb, at)*scp->font_size 668 + scp->font_size - scp->cursor_base - 1]); 669 height = imin(scp->cursor_height, scp->font_size); 670 for (i = 0; i < height; ++i, --f) { 671 outw(GDCIDX, (*f << 8) | 0x08); /* bit mask */ 672 writeb(d, 0); 673 d -= line_width; 674 } 675 outw(GDCIDX, 0x0000); /* set/reset */ 676 outw(GDCIDX, 0x0001); /* set/reset enable */ 677 outw(GDCIDX, 0xff08); /* bit mask */ 678 } 679 680 static int pxlblinkrate = 0; 681 682 static void 683 vga_pxlcursor(scr_stat *scp, int at, int blink, int on, int flip) 684 { 685 if (scp->cursor_height <= 0) /* the text cursor is disabled */ 686 return; 687 688 if (on) { 689 if (!blink) { 690 scp->status |= VR_CURSOR_ON; 691 draw_pxlcursor(scp, at, on, flip); 692 } else if (++pxlblinkrate & 4) { 693 pxlblinkrate = 0; 694 scp->status ^= VR_CURSOR_ON; 695 draw_pxlcursor(scp, at, 696 scp->status & VR_CURSOR_ON, 697 flip); 698 } 699 } else { 700 if (scp->status & VR_CURSOR_ON) 701 draw_pxlcursor(scp, at, on, flip); 702 scp->status &= ~VR_CURSOR_ON; 703 } 704 if (blink) 705 scp->status |= VR_CURSOR_BLINK; 706 else 707 scp->status &= ~VR_CURSOR_BLINK; 708 } 709 710 static void 711 vga_pxlblink(scr_stat *scp, int at, int flip) 712 { 713 if (!(scp->status & VR_CURSOR_BLINK)) 714 return; 715 if (!(++pxlblinkrate & 4)) 716 return; 717 pxlblinkrate = 0; 718 scp->status ^= VR_CURSOR_ON; 719 draw_pxlcursor(scp, at, scp->status & VR_CURSOR_ON, flip); 720 } 721 722 #ifndef SC_NO_CUTPASTE 723 724 static void 725 draw_pxlmouse(scr_stat *scp, int x, int y) 726 { 727 vm_offset_t p; 728 int line_width; 729 int xoff, yoff; 730 int ymax; 731 u_short m; 732 int i, j; 733 734 line_width = scp->sc->adp->va_line_width; 735 xoff = (x - scp->xoff*8)%8; 736 yoff = y - (y/line_width)*line_width; 737 ymax = imin(y + 16, scp->ypixel); 738 739 outw(GDCIDX, 0x0805); /* read mode 1, write mode 0 */ 740 outw(GDCIDX, 0x0001); /* set/reset enable */ 741 outw(GDCIDX, 0x0002); /* color compare */ 742 outw(GDCIDX, 0x0007); /* color don't care */ 743 outw(GDCIDX, 0xff08); /* bit mask */ 744 outw(GDCIDX, 0x0803); /* data rotate/function select (and) */ 745 p = scp->sc->adp->va_window + line_width*y + x/8; 746 if (x < scp->xpixel - 8) { 747 for (i = y, j = 0; i < ymax; ++i, ++j) { 748 m = ~(mouse_and_mask[j] >> xoff); 749 #ifdef __i386__ 750 *(u_char *)p &= m >> 8; 751 *(u_char *)(p + 1) &= m; 752 #elif defined(__alpha__) 753 writeb(p, readb(p) & (m >> 8)); 754 writeb(p + 1, readb(p + 1) & (m >> 8)); 755 #endif 756 p += line_width; 757 } 758 } else { 759 xoff += 8; 760 for (i = y, j = 0; i < ymax; ++i, ++j) { 761 m = ~(mouse_and_mask[j] >> xoff); 762 #ifdef __i386__ 763 *(u_char *)p &= m; 764 #elif defined(__alpha__) 765 writeb(p, readb(p) & (m >> 8)); 766 #endif 767 p += line_width; 768 } 769 } 770 outw(GDCIDX, 0x1003); /* data rotate/function select (or) */ 771 p = scp->sc->adp->va_window + line_width*y + x/8; 772 if (x < scp->xpixel - 8) { 773 for (i = y, j = 0; i < ymax; ++i, ++j) { 774 m = mouse_or_mask[j] >> xoff; 775 #ifdef __i386__ 776 *(u_char *)p &= m >> 8; 777 *(u_char *)(p + 1) &= m; 778 #elif defined(__alpha__) 779 writeb(p, readb(p) & (m >> 8)); 780 writeb(p + 1, readb(p + 1) & (m >> 8)); 781 #endif 782 p += line_width; 783 } 784 } else { 785 for (i = y, j = 0; i < ymax; ++i, ++j) { 786 m = mouse_or_mask[j] >> xoff; 787 #ifdef __i386__ 788 *(u_char *)p &= m; 789 #elif defined(__alpha__) 790 writeb(p, readb(p) & (m >> 8)); 791 #endif 792 p += line_width; 793 } 794 } 795 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 796 outw(GDCIDX, 0x0003); /* data rotate/function select */ 797 } 798 799 static void 800 remove_pxlmouse(scr_stat *scp, int x, int y) 801 { 802 vm_offset_t p; 803 int col, row; 804 int pos; 805 int line_width; 806 int ymax; 807 int i; 808 809 /* erase the mouse cursor image */ 810 col = x/8 - scp->xoff; 811 row = y/scp->font_size - scp->yoff; 812 pos = row*scp->xsize + col; 813 i = (col < scp->xsize - 1) ? 2 : 1; 814 (*scp->rndr->draw)(scp, pos, i, FALSE); 815 if (row < scp->ysize - 1) 816 (*scp->rndr->draw)(scp, pos + scp->xsize, i, FALSE); 817 818 /* paint border if necessary */ 819 line_width = scp->sc->adp->va_line_width; 820 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 821 outw(GDCIDX, 0x0003); /* data rotate/function select */ 822 outw(GDCIDX, 0x0f01); /* set/reset enable */ 823 outw(GDCIDX, 0xff08); /* bit mask */ 824 outw(GDCIDX, (scp->border << 8) | 0x00); /* set/reset */ 825 if (row == scp->ysize - 1) { 826 i = (scp->ysize + scp->yoff)*scp->font_size; 827 ymax = imin(i + scp->font_size, scp->ypixel); 828 p = scp->sc->adp->va_window + i*line_width + scp->xoff + col; 829 if (col < scp->xsize - 1) { 830 for (; i < ymax; ++i) { 831 writeb(p, 0); 832 writeb(p + 1, 0); 833 p += line_width; 834 } 835 } else { 836 for (; i < ymax; ++i) { 837 writeb(p, 0); 838 p += line_width; 839 } 840 } 841 } 842 if ((col == scp->xsize - 1) && (scp->xoff > 0)) { 843 i = (row + scp->yoff)*scp->font_size; 844 ymax = imin(i + scp->font_size*2, scp->ypixel); 845 p = scp->sc->adp->va_window + i*line_width 846 + scp->xoff + scp->xsize; 847 for (; i < ymax; ++i) { 848 writeb(p, 0); 849 p += line_width; 850 } 851 } 852 outw(GDCIDX, 0x0000); /* set/reset */ 853 outw(GDCIDX, 0x0001); /* set/reset enable */ 854 } 855 856 static void 857 vga_pxlmouse(scr_stat *scp, int x, int y, int on) 858 { 859 if (on) 860 draw_pxlmouse(scp, x, y); 861 else 862 remove_pxlmouse(scp, x, y); 863 } 864 865 #endif /* SC_NO_CUTPASTE */ 866 #endif /* SC_PIXEL_MODE */ 867 868 #ifndef SC_NO_MODE_CHANGE 869 870 /* graphics mode renderer */ 871 872 static void 873 vga_grborder(scr_stat *scp, int color) 874 { 875 (*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color); 876 } 877 878 #endif 879