xref: /freebsd/sys/dev/syscons/scvgarndr.c (revision a3422d96bd4c08d07bb6c1984c86578b67ee6a41)
1 /*-
2  * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to The DragonFly Project
6  * by Sascha Wildner <saw@online.de>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer as
13  *    the first lines of this file unmodified.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include "opt_syscons.h"
35 #include "opt_vga.h"
36 
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/module.h>
41 #include <sys/fbio.h>
42 #include <sys/consio.h>
43 
44 #include <machine/bus.h>
45 
46 #include <dev/fb/fbreg.h>
47 #include <dev/fb/vgareg.h>
48 #include <dev/syscons/syscons.h>
49 
50 #include <isa/isareg.h>
51 
52 #ifndef SC_RENDER_DEBUG
53 #define SC_RENDER_DEBUG		0
54 #endif
55 
56 static vr_clear_t		vga_txtclear;
57 static vr_draw_border_t		vga_txtborder;
58 static vr_draw_t		vga_txtdraw;
59 static vr_set_cursor_t		vga_txtcursor_shape;
60 static vr_draw_cursor_t		vga_txtcursor;
61 static vr_blink_cursor_t	vga_txtblink;
62 #ifndef SC_NO_CUTPASTE
63 static vr_draw_mouse_t		vga_txtmouse;
64 #else
65 #define vga_txtmouse		(vr_draw_mouse_t *)vga_nop
66 #endif
67 
68 #ifdef SC_PIXEL_MODE
69 static vr_init_t		vga_rndrinit;
70 static vr_clear_t		vga_pxlclear_direct;
71 static vr_clear_t		vga_pxlclear_planar;
72 static vr_draw_border_t		vga_pxlborder_direct;
73 static vr_draw_border_t		vga_pxlborder_planar;
74 static vr_draw_t		vga_egadraw;
75 static vr_draw_t		vga_vgadraw_direct;
76 static vr_draw_t		vga_vgadraw_planar;
77 static vr_set_cursor_t		vga_pxlcursor_shape;
78 static vr_draw_cursor_t		vga_pxlcursor_direct;
79 static vr_draw_cursor_t		vga_pxlcursor_planar;
80 static vr_blink_cursor_t	vga_pxlblink_direct;
81 static vr_blink_cursor_t	vga_pxlblink_planar;
82 #ifndef SC_NO_CUTPASTE
83 static vr_draw_mouse_t		vga_pxlmouse_direct;
84 static vr_draw_mouse_t		vga_pxlmouse_planar;
85 #else
86 #define vga_pxlmouse_direct	(vr_draw_mouse_t *)vga_nop
87 #define vga_pxlmouse_planar	(vr_draw_mouse_t *)vga_nop
88 #endif
89 #endif /* SC_PIXEL_MODE */
90 
91 #ifndef SC_NO_MODE_CHANGE
92 static vr_draw_border_t		vga_grborder;
93 #endif
94 
95 static void			vga_nop(scr_stat *scp);
96 
97 static sc_rndr_sw_t txtrndrsw = {
98 	(vr_init_t *)vga_nop,
99 	vga_txtclear,
100 	vga_txtborder,
101 	vga_txtdraw,
102 	vga_txtcursor_shape,
103 	vga_txtcursor,
104 	vga_txtblink,
105 	(vr_set_mouse_t *)vga_nop,
106 	vga_txtmouse,
107 };
108 RENDERER(mda, 0, txtrndrsw, vga_set);
109 RENDERER(cga, 0, txtrndrsw, vga_set);
110 RENDERER(ega, 0, txtrndrsw, vga_set);
111 RENDERER(vga, 0, txtrndrsw, vga_set);
112 
113 #ifdef SC_PIXEL_MODE
114 static sc_rndr_sw_t egarndrsw = {
115 	(vr_init_t *)vga_nop,
116 	vga_pxlclear_planar,
117 	vga_pxlborder_planar,
118 	vga_egadraw,
119 	vga_pxlcursor_shape,
120 	vga_pxlcursor_planar,
121 	vga_pxlblink_planar,
122 	(vr_set_mouse_t *)vga_nop,
123 	vga_pxlmouse_planar,
124 };
125 RENDERER(ega, PIXEL_MODE, egarndrsw, vga_set);
126 
127 static sc_rndr_sw_t vgarndrsw = {
128 	vga_rndrinit,
129 	(vr_clear_t *)vga_nop,
130 	(vr_draw_border_t *)vga_nop,
131 	(vr_draw_t *)vga_nop,
132 	vga_pxlcursor_shape,
133 	(vr_draw_cursor_t *)vga_nop,
134 	(vr_blink_cursor_t *)vga_nop,
135 	(vr_set_mouse_t *)vga_nop,
136 	(vr_draw_mouse_t *)vga_nop,
137 };
138 RENDERER(vga, PIXEL_MODE, vgarndrsw, vga_set);
139 #endif /* SC_PIXEL_MODE */
140 
141 #ifndef SC_NO_MODE_CHANGE
142 static sc_rndr_sw_t grrndrsw = {
143 	(vr_init_t *)vga_nop,
144 	(vr_clear_t *)vga_nop,
145 	vga_grborder,
146 	(vr_draw_t *)vga_nop,
147 	(vr_set_cursor_t *)vga_nop,
148 	(vr_draw_cursor_t *)vga_nop,
149 	(vr_blink_cursor_t *)vga_nop,
150 	(vr_set_mouse_t *)vga_nop,
151 	(vr_draw_mouse_t *)vga_nop,
152 };
153 RENDERER(cga, GRAPHICS_MODE, grrndrsw, vga_set);
154 RENDERER(ega, GRAPHICS_MODE, grrndrsw, vga_set);
155 RENDERER(vga, GRAPHICS_MODE, grrndrsw, vga_set);
156 #endif /* SC_NO_MODE_CHANGE */
157 
158 RENDERER_MODULE(vga, vga_set);
159 
160 #ifndef SC_NO_CUTPASTE
161 #if !defined(SC_ALT_MOUSE_IMAGE) || defined(SC_PIXEL_MODE)
162 struct mousedata {
163 	u_short	md_border[16];
164 	u_short	md_interior[16];
165 	u_short	md_width;
166 	u_short	md_height;
167 };
168 
169 static const struct mousedata mouse9x13 = { {
170 	0xc000, 0xa000, 0x9000, 0x8800, 0x8400, 0x8200, 0x8100, 0x9780,
171 	0xf200, 0x1200, 0x1900, 0x0900, 0x0f00, 0x0000, 0x0000, 0x0000, }, {
172 	0x0000, 0x4000, 0x6000, 0x7000, 0x7800, 0x7c00, 0x7e00, 0x6800,
173 	0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000, },
174 	9, 13,
175 };
176 
177 static const struct mousedata mouse10x16 = { {
178 	0xc000, 0xa000, 0x9000, 0x8800, 0x8400, 0x8200, 0x8100, 0x8080,
179 	0x8040, 0x83c0, 0x9200, 0xa900, 0xc900, 0x0480, 0x0480, 0x0300, }, {
180 	0x0000, 0x4000, 0x6000, 0x7000, 0x7800, 0x7c00, 0x7e00, 0x7f00,
181 	0x7f80, 0x7c00, 0x6c00, 0x4600, 0x0600, 0x0300, 0x0300, 0x0000, },
182 	10, 16,
183 };
184 #endif
185 #endif
186 
187 #ifdef SC_PIXEL_MODE
188 #define	GET_PIXEL(scp, pos, x, w)					\
189 ({									\
190 	(scp)->sc->adp->va_window +					\
191 	    (x) * (scp)->xoff +						\
192 	    (scp)->yoff * (scp)->font_size * (w) +			\
193 	    (x) * ((pos) % (scp)->xsize) +				\
194 	    (scp)->font_size * (w) * ((pos) / (scp)->xsize);		\
195 })
196 
197 #define	DRAW_PIXEL(scp, pos, color) do {				\
198 	switch ((scp)->sc->adp->va_info.vi_depth) {			\
199 	case 32:							\
200 		writel((pos), vga_palette32[color]);			\
201 		break;							\
202 	case 24:							\
203 		if (((pos) & 1) == 0) {					\
204 			writew((pos), vga_palette32[color]);		\
205 			writeb((pos) + 2, vga_palette32[color] >> 16);	\
206 		} else {						\
207 			writeb((pos), vga_palette32[color]);		\
208 			writew((pos) + 1, vga_palette32[color] >> 8);	\
209 		}							\
210 		break;							\
211 	case 16:							\
212 		if ((scp)->sc->adp->va_info.vi_pixel_fsizes[1] == 5)	\
213 			writew((pos), vga_palette15[color]);		\
214 		else							\
215 			writew((pos), vga_palette16[color]);		\
216 		break;							\
217 	case 15:							\
218 		writew((pos), vga_palette15[color]);			\
219 		break;							\
220 	case 8:								\
221 		writeb((pos), (uint8_t)(color));			\
222 	}								\
223 } while (0)
224 
225 static uint32_t vga_palette32[16] = {
226 	0x000000, 0x0000ad, 0x00ad00, 0x00adad,
227 	0xad0000, 0xad00ad, 0xad5200, 0xadadad,
228 	0x525252, 0x5252ff, 0x52ff52, 0x52ffff,
229 	0xff5252, 0xff52ff, 0xffff52, 0xffffff
230 };
231 
232 static uint16_t vga_palette16[16] = {
233 	0x0000, 0x0016, 0x0560, 0x0576, 0xb000, 0xb016, 0xb2a0, 0xb576,
234 	0x52aa, 0x52bf, 0x57ea, 0x57ff, 0xfaaa, 0xfabf, 0xffea, 0xffff
235 };
236 
237 static uint16_t vga_palette15[16] = {
238 	0x0000, 0x0016, 0x02c0, 0x02d6, 0x5800, 0x5816, 0x5940, 0x5ad6,
239 	0x294a, 0x295f, 0x2bea, 0x2bff, 0x7d4a, 0x7d5f, 0x7fea, 0x7fff
240 };
241 
242 #ifndef SC_NO_CUTPASTE
243 static uint32_t mouse_buf32[256];
244 static uint16_t mouse_buf16[256];
245 static uint8_t  mouse_buf8[256];
246 #endif
247 #endif
248 
249 static void
250 vga_nop(scr_stat *scp)
251 {
252 }
253 
254 /* text mode renderer */
255 
256 static void
257 vga_txtclear(scr_stat *scp, int c, int attr)
258 {
259 	sc_vtb_clear(&scp->scr, c, attr);
260 }
261 
262 static void
263 vga_txtborder(scr_stat *scp, int color)
264 {
265 	vidd_set_border(scp->sc->adp, color);
266 }
267 
268 static void
269 vga_txtdraw(scr_stat *scp, int from, int count, int flip)
270 {
271 	vm_offset_t p;
272 	int c;
273 	int a;
274 
275 	if (from + count > scp->xsize*scp->ysize)
276 		count = scp->xsize*scp->ysize - from;
277 
278 	if (flip) {
279 		for (p = sc_vtb_pointer(&scp->scr, from); count-- > 0; ++from) {
280 			c = sc_vtb_getc(&scp->vtb, from);
281 			a = sc_vtb_geta(&scp->vtb, from);
282 			a = (a & 0x8800) | ((a & 0x7000) >> 4)
283 				| ((a & 0x0700) << 4);
284 			p = sc_vtb_putchar(&scp->scr, p, c, a);
285 		}
286 	} else {
287 		sc_vtb_copy(&scp->vtb, from, &scp->scr, from, count);
288 	}
289 }
290 
291 static void
292 vga_txtcursor_shape(scr_stat *scp, int base, int height, int blink)
293 {
294 	if (base < 0 || base >= scp->font_size)
295 		return;
296 	/* the caller may set height <= 0 in order to disable the cursor */
297 #if 0
298 	scp->curs_attr.base = base;
299 	scp->curs_attr.height = height;
300 #endif
301 	vidd_set_hw_cursor_shape(scp->sc->adp, base, height,
302 	    scp->font_size, blink);
303 }
304 
305 static void
306 draw_txtcharcursor(scr_stat *scp, int at, u_short c, u_short a, int flip)
307 {
308 	sc_softc_t *sc;
309 
310 	sc = scp->sc;
311 
312 #ifndef SC_NO_FONT_LOADING
313 	if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
314 		unsigned char *font;
315 		int h;
316 		int i;
317 
318 		if (scp->font_size < 14) {
319 			font = sc->font_8;
320 			h = 8;
321 		} else if (scp->font_size >= 16) {
322 			font = sc->font_16;
323 			h = 16;
324 		} else {
325 			font = sc->font_14;
326 			h = 14;
327 		}
328 		if (scp->curs_attr.base >= h)
329 			return;
330 		if (flip)
331 			a = (a & 0x8800)
332 				| ((a & 0x7000) >> 4) | ((a & 0x0700) << 4);
333 		bcopy(font + c*h, font + sc->cursor_char*h, h);
334 		font = font + sc->cursor_char*h;
335 		for (i = imax(h - scp->curs_attr.base - scp->curs_attr.height, 0);
336 			i < h - scp->curs_attr.base; ++i) {
337 			font[i] ^= 0xff;
338 		}
339 		/* XXX */
340 		vidd_load_font(sc->adp, 0, h, 8, font, sc->cursor_char, 1);
341 		sc_vtb_putc(&scp->scr, at, sc->cursor_char, a);
342 	} else
343 #endif /* SC_NO_FONT_LOADING */
344 	{
345 		if ((a & 0x7000) == 0x7000) {
346 			a &= 0x8f00;
347 			if ((a & 0x0700) == 0)
348 				a |= 0x0700;
349 		} else {
350 			a |= 0x7000;
351 			if ((a & 0x0700) == 0x0700)
352 				a &= 0xf000;
353 		}
354 		if (flip)
355 			a = (a & 0x8800)
356 				| ((a & 0x7000) >> 4) | ((a & 0x0700) << 4);
357 		sc_vtb_putc(&scp->scr, at, c, a);
358 	}
359 }
360 
361 static void
362 vga_txtcursor(scr_stat *scp, int at, int blink, int on, int flip)
363 {
364 	video_adapter_t *adp;
365 	int cursor_attr;
366 
367 	if (scp->curs_attr.height <= 0)	/* the text cursor is disabled */
368 		return;
369 
370 	adp = scp->sc->adp;
371 	if (blink) {
372 		scp->status |= VR_CURSOR_BLINK;
373 		if (on) {
374 			scp->status |= VR_CURSOR_ON;
375 			vidd_set_hw_cursor(adp, at%scp->xsize,
376 			    at/scp->xsize);
377 		} else {
378 			if (scp->status & VR_CURSOR_ON)
379 				vidd_set_hw_cursor(adp, -1, -1);
380 			scp->status &= ~VR_CURSOR_ON;
381 		}
382 	} else {
383 		scp->status &= ~VR_CURSOR_BLINK;
384 		if (on) {
385 			scp->status |= VR_CURSOR_ON;
386 			draw_txtcharcursor(scp, at,
387 					   sc_vtb_getc(&scp->vtb, at),
388 					   sc_vtb_geta(&scp->vtb, at),
389 					   flip);
390 		} else {
391 			cursor_attr = sc_vtb_geta(&scp->vtb, at);
392 			if (flip)
393 				cursor_attr = (cursor_attr & 0x8800)
394 					| ((cursor_attr & 0x7000) >> 4)
395 					| ((cursor_attr & 0x0700) << 4);
396 			if (scp->status & VR_CURSOR_ON)
397 				sc_vtb_putc(&scp->scr, at,
398 					    sc_vtb_getc(&scp->vtb, at),
399 					    cursor_attr);
400 			scp->status &= ~VR_CURSOR_ON;
401 		}
402 	}
403 }
404 
405 static void
406 vga_txtblink(scr_stat *scp, int at, int flip)
407 {
408 }
409 
410 int sc_txtmouse_no_retrace_wait;
411 
412 #ifndef SC_NO_CUTPASTE
413 
414 static void
415 draw_txtmouse(scr_stat *scp, int x, int y)
416 {
417 #ifndef SC_ALT_MOUSE_IMAGE
418     if (ISMOUSEAVAIL(scp->sc->adp->va_flags)) {
419 	const struct mousedata *mdp;
420 	u_char font_buf[128];
421 	u_short cursor[32];
422 	u_char c;
423 	int pos;
424 	int xoffset, yoffset;
425 	int crtc_addr;
426 	int i;
427 
428 	mdp = &mouse9x13;
429 
430 	/* prepare mousepointer char's bitmaps */
431 	pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff;
432 	bcopy(scp->font + sc_vtb_getc(&scp->scr, pos)*scp->font_size,
433 	      &font_buf[0], scp->font_size);
434 	bcopy(scp->font + sc_vtb_getc(&scp->scr, pos + 1)*scp->font_size,
435 	      &font_buf[32], scp->font_size);
436 	bcopy(scp->font
437 		 + sc_vtb_getc(&scp->scr, pos + scp->xsize)*scp->font_size,
438 	      &font_buf[64], scp->font_size);
439 	bcopy(scp->font
440 		 + sc_vtb_getc(&scp->scr, pos + scp->xsize + 1)*scp->font_size,
441 	      &font_buf[96], scp->font_size);
442 	for (i = 0; i < scp->font_size; ++i) {
443 		cursor[i] = font_buf[i]<<8 | font_buf[i+32];
444 		cursor[i + scp->font_size] = font_buf[i+64]<<8 | font_buf[i+96];
445 	}
446 
447 	/* now and-or in the mousepointer image */
448 	xoffset = x%8;
449 	yoffset = y%scp->font_size;
450 	for (i = 0; i < 16; ++i) {
451 		cursor[i + yoffset] =
452 	    		(cursor[i + yoffset] & ~(mdp->md_border[i] >> xoffset))
453 	    		| (mdp->md_interior[i] >> xoffset);
454 	}
455 	for (i = 0; i < scp->font_size; ++i) {
456 		font_buf[i] = (cursor[i] & 0xff00) >> 8;
457 		font_buf[i + 32] = cursor[i] & 0xff;
458 		font_buf[i + 64] = (cursor[i + scp->font_size] & 0xff00) >> 8;
459 		font_buf[i + 96] = cursor[i + scp->font_size] & 0xff;
460 	}
461 
462 #if 1
463 	/* wait for vertical retrace to avoid jitter on some videocards */
464 	crtc_addr = scp->sc->adp->va_crtc_addr;
465 	while (!sc_txtmouse_no_retrace_wait &&
466 	    !(inb(crtc_addr + 6) & 0x08))
467 		/* idle */ ;
468 #endif
469 	c = scp->sc->mouse_char;
470 	vidd_load_font(scp->sc->adp, 0, 32, 8, font_buf, c, 4);
471 
472 	sc_vtb_putc(&scp->scr, pos, c, sc_vtb_geta(&scp->scr, pos));
473 	/* FIXME: may be out of range! */
474 	sc_vtb_putc(&scp->scr, pos + scp->xsize, c + 2,
475 		    sc_vtb_geta(&scp->scr, pos + scp->xsize));
476 	if (x < (scp->xsize - 1)*8) {
477 		sc_vtb_putc(&scp->scr, pos + 1, c + 1,
478 			    sc_vtb_geta(&scp->scr, pos + 1));
479 		sc_vtb_putc(&scp->scr, pos + scp->xsize + 1, c + 3,
480 			    sc_vtb_geta(&scp->scr, pos + scp->xsize + 1));
481 	}
482     } else
483 #endif /* SC_ALT_MOUSE_IMAGE */
484     {
485 	/* Red, magenta and brown are mapped to green to to keep it readable */
486 	static const int col_conv[16] = {
487 		6, 6, 6, 6, 2, 2, 2, 6, 14, 14, 14, 14, 10, 10, 10, 14
488 	};
489 	int pos;
490 	int color;
491 	int a;
492 
493 	pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff;
494 	a = sc_vtb_geta(&scp->scr, pos);
495 	if (scp->sc->adp->va_flags & V_ADP_COLOR)
496 		color = (col_conv[(a & 0xf000) >> 12] << 12)
497 			| ((a & 0x0f00) | 0x0800);
498 	else
499 		color = ((a & 0xf000) >> 4) | ((a & 0x0f00) << 4);
500 	sc_vtb_putc(&scp->scr, pos, sc_vtb_getc(&scp->scr, pos), color);
501     }
502 }
503 
504 static void
505 remove_txtmouse(scr_stat *scp, int x, int y)
506 {
507 }
508 
509 static void
510 vga_txtmouse(scr_stat *scp, int x, int y, int on)
511 {
512 	if (on)
513 		draw_txtmouse(scp, x, y);
514 	else
515 		remove_txtmouse(scp, x, y);
516 }
517 
518 #endif /* SC_NO_CUTPASTE */
519 
520 #ifdef SC_PIXEL_MODE
521 
522 /* pixel (raster text) mode renderer */
523 
524 static void
525 vga_rndrinit(scr_stat *scp)
526 {
527 	if (scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_PLANAR) {
528 		scp->rndr->clear = vga_pxlclear_planar;
529 		scp->rndr->draw_border = vga_pxlborder_planar;
530 		scp->rndr->draw = vga_vgadraw_planar;
531 		scp->rndr->draw_cursor = vga_pxlcursor_planar;
532 		scp->rndr->blink_cursor = vga_pxlblink_planar;
533 		scp->rndr->draw_mouse = vga_pxlmouse_planar;
534 	} else
535 	if (scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT ||
536 	    scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_PACKED) {
537 		scp->rndr->clear = vga_pxlclear_direct;
538 		scp->rndr->draw_border = vga_pxlborder_direct;
539 		scp->rndr->draw = vga_vgadraw_direct;
540 		scp->rndr->draw_cursor = vga_pxlcursor_direct;
541 		scp->rndr->blink_cursor = vga_pxlblink_direct;
542 		scp->rndr->draw_mouse = vga_pxlmouse_direct;
543 	}
544 }
545 
546 static void
547 vga_pxlclear_direct(scr_stat *scp, int c, int attr)
548 {
549 	vm_offset_t p;
550 	int line_width;
551 	int pixel_size;
552 	int lines;
553 	int i;
554 
555 	line_width = scp->sc->adp->va_line_width;
556 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
557 	lines = scp->ysize * scp->font_size;
558 	p = scp->sc->adp->va_window +
559 	    line_width * scp->yoff * scp->font_size +
560 	    scp->xoff * 8 * pixel_size;
561 
562 	for (i = 0; i < lines; ++i) {
563 		bzero_io((void *)p, scp->xsize * 8 * pixel_size);
564 		p += line_width;
565 	}
566 }
567 
568 static void
569 vga_pxlclear_planar(scr_stat *scp, int c, int attr)
570 {
571 	vm_offset_t p;
572 	int line_width;
573 	int lines;
574 	int i;
575 
576 	/* XXX: we are just filling the screen with the background color... */
577 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
578 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
579 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
580 	outw(GDCIDX, 0xff08);		/* bit mask */
581 	outw(GDCIDX, ((attr & 0xf000) >> 4) | 0x00); /* set/reset */
582 	line_width = scp->sc->adp->va_line_width;
583 	lines = scp->ysize*scp->font_size;
584 	p = scp->sc->adp->va_window + line_width*scp->yoff*scp->font_size
585 		+ scp->xoff;
586 	for (i = 0; i < lines; ++i) {
587 		bzero_io((void *)p, scp->xsize);
588 		p += line_width;
589 	}
590 	outw(GDCIDX, 0x0000);		/* set/reset */
591 	outw(GDCIDX, 0x0001);		/* set/reset enable */
592 }
593 
594 static void
595 vga_pxlborder_direct(scr_stat *scp, int color)
596 {
597 	vm_offset_t s;
598 	vm_offset_t e;
599 	vm_offset_t f;
600 	int line_width;
601 	int pixel_size;
602 	int x;
603 	int y;
604 	int i;
605 
606 	line_width = scp->sc->adp->va_line_width;
607 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
608 
609 	if (scp->yoff > 0) {
610 		s = scp->sc->adp->va_window;
611 		e = s + line_width * scp->yoff * scp->font_size;
612 
613 		for (f = s; f < e; f += pixel_size)
614 			DRAW_PIXEL(scp, f, color);
615 	}
616 
617 	y = (scp->yoff + scp->ysize) * scp->font_size;
618 
619 	if (scp->ypixel > y) {
620 		s = scp->sc->adp->va_window + line_width * y;
621 		e = s + line_width * (scp->ypixel - y);
622 
623 		for (f = s; f < e; f += pixel_size)
624 			DRAW_PIXEL(scp, f, color);
625 	}
626 
627 	y = scp->yoff * scp->font_size;
628 	x = scp->xpixel / 8 - scp->xoff - scp->xsize;
629 
630 	for (i = 0; i < scp->ysize * scp->font_size; ++i) {
631 		if (scp->xoff > 0) {
632 			s = scp->sc->adp->va_window + line_width * (y + i);
633 			e = s + scp->xoff * 8 * pixel_size;
634 
635 			for (f = s; f < e; f += pixel_size)
636 				DRAW_PIXEL(scp, f, color);
637 		}
638 
639 		if (x > 0) {
640 			s = scp->sc->adp->va_window + line_width * (y + i) +
641 			    scp->xoff * 8 * pixel_size +
642 			    scp->xsize * 8 * pixel_size;
643 			e = s + x * 8 * pixel_size;
644 
645 			for (f = s; f < e; f += pixel_size)
646 				DRAW_PIXEL(scp, f, color);
647 		}
648 	}
649 }
650 
651 static void
652 vga_pxlborder_planar(scr_stat *scp, int color)
653 {
654 	vm_offset_t p;
655 	int line_width;
656 	int x;
657 	int y;
658 	int i;
659 
660 	vidd_set_border(scp->sc->adp, color);
661 
662 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
663 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
664 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
665 	outw(GDCIDX, 0xff08);		/* bit mask */
666 	outw(GDCIDX, (color << 8) | 0x00);	/* set/reset */
667 	line_width = scp->sc->adp->va_line_width;
668 	p = scp->sc->adp->va_window;
669 	if (scp->yoff > 0)
670 		bzero_io((void *)p, line_width*scp->yoff*scp->font_size);
671 	y = (scp->yoff + scp->ysize)*scp->font_size;
672 	if (scp->ypixel > y)
673 		bzero_io((void *)(p + line_width*y), line_width*(scp->ypixel - y));
674 	y = scp->yoff*scp->font_size;
675 	x = scp->xpixel/8 - scp->xoff - scp->xsize;
676 	for (i = 0; i < scp->ysize*scp->font_size; ++i) {
677 		if (scp->xoff > 0)
678 			bzero_io((void *)(p + line_width*(y + i)), scp->xoff);
679 		if (x > 0)
680 			bzero_io((void *)(p + line_width*(y + i)
681 				     + scp->xoff + scp->xsize), x);
682 	}
683 	outw(GDCIDX, 0x0000);		/* set/reset */
684 	outw(GDCIDX, 0x0001);		/* set/reset enable */
685 }
686 
687 static void
688 vga_egadraw(scr_stat *scp, int from, int count, int flip)
689 {
690 	vm_offset_t d;
691 	vm_offset_t e;
692 	u_char *f;
693 	u_short bg;
694 	u_short col1, col2;
695 	int line_width;
696 	int i, j;
697 	int a;
698 	u_char c;
699 
700 	line_width = scp->sc->adp->va_line_width;
701 
702 	d = GET_PIXEL(scp, from, 1, line_width);
703 
704 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
705 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
706 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
707 	bg = -1;
708 	if (from + count > scp->xsize*scp->ysize)
709 		count = scp->xsize*scp->ysize - from;
710 	for (i = from; count-- > 0; ++i) {
711 		a = sc_vtb_geta(&scp->vtb, i);
712 		if (flip) {
713 			col1 = ((a & 0x7000) >> 4) | (a & 0x0800);
714 			col2 = ((a & 0x8000) >> 4) | (a & 0x0700);
715 		} else {
716 			col1 = (a & 0x0f00);
717 			col2 = (a & 0xf000) >> 4;
718 		}
719 		/* set background color in EGA/VGA latch */
720 		if (bg != col2) {
721 			bg = col2;
722 			outw(GDCIDX, bg | 0x00);	/* set/reset */
723 			outw(GDCIDX, 0xff08);		/* bit mask */
724 			writeb(d, 0);
725 			c = readb(d);	/* set bg color in the latch */
726 		}
727 		/* foreground color */
728 		outw(GDCIDX, col1 | 0x00);		/* set/reset */
729 		e = d;
730 		f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]);
731 		for (j = 0; j < scp->font_size; ++j, ++f) {
732 			outw(GDCIDX, (*f << 8) | 0x08);	/* bit mask */
733 	        	writeb(e, 0);
734 			e += line_width;
735 		}
736 		++d;
737 		if ((i % scp->xsize) == scp->xsize - 1)
738 			d += scp->font_size * line_width - scp->xsize;
739 	}
740 	outw(GDCIDX, 0x0000);		/* set/reset */
741 	outw(GDCIDX, 0x0001);		/* set/reset enable */
742 	outw(GDCIDX, 0xff08);		/* bit mask */
743 }
744 
745 static void
746 vga_vgadraw_direct(scr_stat *scp, int from, int count, int flip)
747 {
748 	vm_offset_t d;
749 	vm_offset_t e;
750 	u_char *f;
751 	u_short col1, col2, color;
752 	int line_width, pixel_size;
753 	int i, j, k;
754 	int a;
755 
756 	line_width = scp->sc->adp->va_line_width;
757 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
758 
759 	d = GET_PIXEL(scp, from, 8 * pixel_size, line_width);
760 
761 	if (from + count > scp->xsize * scp->ysize)
762 		count = scp->xsize * scp->ysize - from;
763 
764 	for (i = from; count-- > 0; ++i) {
765 		a = sc_vtb_geta(&scp->vtb, i);
766 
767 		if (flip) {
768 			col1 = (((a & 0x7000) >> 4) | (a & 0x0800)) >> 8;
769 			col2 = (((a & 0x8000) >> 4) | (a & 0x0700)) >> 8;
770 		} else {
771 			col1 = (a & 0x0f00) >> 8;
772 			col2 = (a & 0xf000) >> 12;
773 		}
774 
775 		e = d;
776 		f = &(scp->font[sc_vtb_getc(&scp->vtb, i) * scp->font_size]);
777 
778 		for (j = 0; j < scp->font_size; ++j, ++f) {
779 			for (k = 0; k < 8; ++k) {
780 				color = *f & (1 << (7 - k)) ? col1 : col2;
781 				DRAW_PIXEL(scp, e + pixel_size * k, color);
782 			}
783 
784 			e += line_width;
785 		}
786 
787 		d += 8 * pixel_size;
788 
789 		if ((i % scp->xsize) == scp->xsize - 1)
790 			d += scp->font_size * line_width -
791 			    scp->xsize * 8 * pixel_size;
792 	}
793 }
794 
795 static void
796 vga_vgadraw_planar(scr_stat *scp, int from, int count, int flip)
797 {
798 	vm_offset_t d;
799 	vm_offset_t e;
800 	u_char *f;
801 	u_short bg;
802 	u_short col1, col2;
803 	int line_width;
804 	int i, j;
805 	int a;
806 	u_char c;
807 
808 	line_width = scp->sc->adp->va_line_width;
809 
810 	d = GET_PIXEL(scp, from, 1, line_width);
811 
812 	outw(GDCIDX, 0x0305);		/* read mode 0, write mode 3 */
813 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
814 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
815 	outw(GDCIDX, 0xff08);		/* bit mask */
816 	bg = -1;
817 	if (from + count > scp->xsize*scp->ysize)
818 		count = scp->xsize*scp->ysize - from;
819 	for (i = from; count-- > 0; ++i) {
820 		a = sc_vtb_geta(&scp->vtb, i);
821 		if (flip) {
822 			col1 = ((a & 0x7000) >> 4) | (a & 0x0800);
823 			col2 = ((a & 0x8000) >> 4) | (a & 0x0700);
824 		} else {
825 			col1 = (a & 0x0f00);
826 			col2 = (a & 0xf000) >> 4;
827 		}
828 		/* set background color in EGA/VGA latch */
829 		if (bg != col2) {
830 			bg = col2;
831 			outw(GDCIDX, 0x0005);	/* read mode 0, write mode 0 */
832 			outw(GDCIDX, bg | 0x00); /* set/reset */
833 			writeb(d, 0);
834 			c = readb(d);		/* set bg color in the latch */
835 			outw(GDCIDX, 0x0305);	/* read mode 0, write mode 3 */
836 		}
837 		/* foreground color */
838 		outw(GDCIDX, col1 | 0x00);	/* set/reset */
839 		e = d;
840 		f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]);
841 		for (j = 0; j < scp->font_size; ++j, ++f) {
842 	        	writeb(e, *f);
843 			e += line_width;
844 		}
845 		++d;
846 		if ((i % scp->xsize) == scp->xsize - 1)
847 			d += scp->font_size * line_width - scp->xsize;
848 	}
849 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
850 	outw(GDCIDX, 0x0000);		/* set/reset */
851 	outw(GDCIDX, 0x0001);		/* set/reset enable */
852 }
853 
854 static void
855 vga_pxlcursor_shape(scr_stat *scp, int base, int height, int blink)
856 {
857 	if (base < 0 || base >= scp->font_size)
858 		return;
859 	/* the caller may set height <= 0 in order to disable the cursor */
860 #if 0
861 	scp->curs_attr.base = base;
862 	scp->curs_attr.height = height;
863 #endif
864 }
865 
866 static void
867 draw_pxlcursor_direct(scr_stat *scp, int at, int on, int flip)
868 {
869 	vm_offset_t d;
870 	u_char *f;
871 	int line_width, pixel_size;
872 	int height;
873 	int col1, col2, color;
874 	int a;
875 	int i, j;
876 
877 	line_width = scp->sc->adp->va_line_width;
878 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
879 
880 	d = GET_PIXEL(scp, at, 8 * pixel_size, line_width) +
881 	    (scp->font_size - scp->curs_attr.base - 1) * line_width;
882 
883 	a = sc_vtb_geta(&scp->vtb, at);
884 
885 	if (flip) {
886 		col1 = ((on) ? (a & 0x0f00) : ((a & 0xf000) >> 4)) >> 8;
887 		col2 = ((on) ? ((a & 0xf000) >> 4) : (a & 0x0f00)) >> 8;
888 	} else {
889 		col1 = ((on) ? ((a & 0xf000) >> 4) : (a & 0x0f00)) >> 8;
890 		col2 = ((on) ? (a & 0x0f00) : ((a & 0xf000) >> 4)) >> 8;
891 	}
892 
893 	f = &(scp->font[sc_vtb_getc(&scp->vtb, at) * scp->font_size +
894 	      scp->font_size - scp->curs_attr.base - 1]);
895 
896 	height = imin(scp->curs_attr.height, scp->font_size);
897 
898 	for (i = 0; i < height; ++i, --f) {
899 		for (j = 0; j < 8; ++j) {
900 			color = *f & (1 << (7 - j)) ? col1 : col2;
901 			DRAW_PIXEL(scp, d + pixel_size * j, color);
902 		}
903 
904 		d -= line_width;
905 	}
906 }
907 
908 static void
909 draw_pxlcursor_planar(scr_stat *scp, int at, int on, int flip)
910 {
911 	vm_offset_t d;
912 	u_char *f;
913 	int line_width;
914 	int height;
915 	int col;
916 	int a;
917 	int i;
918 	u_char c;
919 
920 	line_width = scp->sc->adp->va_line_width;
921 
922 	d = GET_PIXEL(scp, at, 1, line_width) +
923 	    (scp->font_size - scp->curs_attr.base - 1) * line_width;
924 
925 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
926 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
927 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
928 	/* set background color in EGA/VGA latch */
929 	a = sc_vtb_geta(&scp->vtb, at);
930 	if (flip)
931 		col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00);
932 	else
933 		col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4);
934 	outw(GDCIDX, col | 0x00);	/* set/reset */
935 	outw(GDCIDX, 0xff08);		/* bit mask */
936 	writeb(d, 0);
937 	c = readb(d);			/* set bg color in the latch */
938 	/* foreground color */
939 	if (flip)
940 		col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4);
941 	else
942 		col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00);
943 	outw(GDCIDX, col | 0x00);	/* set/reset */
944 	f = &(scp->font[sc_vtb_getc(&scp->vtb, at)*scp->font_size
945 		+ scp->font_size - scp->curs_attr.base - 1]);
946 	height = imin(scp->curs_attr.height, scp->font_size);
947 	for (i = 0; i < height; ++i, --f) {
948 		outw(GDCIDX, (*f << 8) | 0x08);	/* bit mask */
949 	       	writeb(d, 0);
950 		d -= line_width;
951 	}
952 	outw(GDCIDX, 0x0000);		/* set/reset */
953 	outw(GDCIDX, 0x0001);		/* set/reset enable */
954 	outw(GDCIDX, 0xff08);		/* bit mask */
955 }
956 
957 static int pxlblinkrate = 0;
958 
959 static void
960 vga_pxlcursor_direct(scr_stat *scp, int at, int blink, int on, int flip)
961 {
962 	if (scp->curs_attr.height <= 0)	/* the text cursor is disabled */
963 		return;
964 
965 	if (on) {
966 		if (!blink) {
967 			scp->status |= VR_CURSOR_ON;
968 			draw_pxlcursor_direct(scp, at, on, flip);
969 		} else if (++pxlblinkrate & 4) {
970 			pxlblinkrate = 0;
971 			scp->status ^= VR_CURSOR_ON;
972 			draw_pxlcursor_direct(scp, at,
973 					      scp->status & VR_CURSOR_ON,
974 					      flip);
975 		}
976 	} else {
977 		if (scp->status & VR_CURSOR_ON)
978 			draw_pxlcursor_direct(scp, at, on, flip);
979 		scp->status &= ~VR_CURSOR_ON;
980 	}
981 	if (blink)
982 		scp->status |= VR_CURSOR_BLINK;
983 	else
984 		scp->status &= ~VR_CURSOR_BLINK;
985 }
986 
987 static void
988 vga_pxlcursor_planar(scr_stat *scp, int at, int blink, int on, int flip)
989 {
990 	if (scp->curs_attr.height <= 0)	/* the text cursor is disabled */
991 		return;
992 
993 	if (on) {
994 		if (!blink) {
995 			scp->status |= VR_CURSOR_ON;
996 			draw_pxlcursor_planar(scp, at, on, flip);
997 		} else if (++pxlblinkrate & 4) {
998 			pxlblinkrate = 0;
999 			scp->status ^= VR_CURSOR_ON;
1000 			draw_pxlcursor_planar(scp, at,
1001 					      scp->status & VR_CURSOR_ON,
1002 					      flip);
1003 		}
1004 	} else {
1005 		if (scp->status & VR_CURSOR_ON)
1006 			draw_pxlcursor_planar(scp, at, on, flip);
1007 		scp->status &= ~VR_CURSOR_ON;
1008 	}
1009 	if (blink)
1010 		scp->status |= VR_CURSOR_BLINK;
1011 	else
1012 		scp->status &= ~VR_CURSOR_BLINK;
1013 }
1014 
1015 static void
1016 vga_pxlblink_direct(scr_stat *scp, int at, int flip)
1017 {
1018 	if (!(scp->status & VR_CURSOR_BLINK))
1019 		return;
1020 	if (!(++pxlblinkrate & 4))
1021 		return;
1022 	pxlblinkrate = 0;
1023 	scp->status ^= VR_CURSOR_ON;
1024 	draw_pxlcursor_direct(scp, at, scp->status & VR_CURSOR_ON, flip);
1025 }
1026 
1027 static void
1028 vga_pxlblink_planar(scr_stat *scp, int at, int flip)
1029 {
1030 	if (!(scp->status & VR_CURSOR_BLINK))
1031 		return;
1032 	if (!(++pxlblinkrate & 4))
1033 		return;
1034 	pxlblinkrate = 0;
1035 	scp->status ^= VR_CURSOR_ON;
1036 	draw_pxlcursor_planar(scp, at, scp->status & VR_CURSOR_ON, flip);
1037 }
1038 
1039 #ifndef SC_NO_CUTPASTE
1040 
1041 static void
1042 draw_pxlmouse_planar(scr_stat *scp, int x, int y)
1043 {
1044 	const struct mousedata *mdp;
1045 	vm_offset_t p;
1046 	int line_width;
1047 	int xoff, yoff;
1048 	int ymax;
1049 	uint32_t m;
1050 	int i, j, k;
1051 	uint8_t m1;
1052 
1053 	mdp = (scp->font_size < 14) ? &mouse9x13 : &mouse10x16;
1054 	line_width = scp->sc->adp->va_line_width;
1055 	xoff = (x - scp->xoff*8)%8;
1056 	yoff = y - rounddown(y, line_width);
1057 	ymax = imin(y + mdp->md_height, scp->ypixel);
1058 
1059 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
1060 	outw(GDCIDX, 0x0001);		/* set/reset enable */
1061 	outw(GDCIDX, 0xff08);		/* bit mask */
1062 	outw(GDCIDX, 0x0803);		/* data rotate/function select (and) */
1063 	p = scp->sc->adp->va_window + line_width*y + x/8;
1064 	for (i = y, j = 0; i < ymax; ++i, ++j) {
1065 		m = ~(mdp->md_border[j] << 8 >> xoff);
1066 		for (k = 0; k < 3; ++k) {
1067 			m1 = m >> (8 * (2 - k));
1068 			if (m1 != 0xff && x + 8 * k < scp->xpixel) {
1069 				readb(p + k);
1070 				writeb(p + k, m1);
1071  			}
1072 		}
1073 		p += line_width;
1074 	}
1075 	outw(GDCIDX, 0x1003);		/* data rotate/function select (or) */
1076 	p = scp->sc->adp->va_window + line_width*y + x/8;
1077 	for (i = y, j = 0; i < ymax; ++i, ++j) {
1078 		m = mdp->md_interior[j] << 8 >> xoff;
1079 		for (k = 0; k < 3; ++k) {
1080 			m1 = m >> (8 * (2 - k));
1081 			if (m1 != 0 && x + 8 * k < scp->xpixel) {
1082 				readb(p + k);
1083 				writeb(p + k, m1);
1084 			}
1085 		}
1086 		p += line_width;
1087 	}
1088 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
1089 }
1090 
1091 static void
1092 remove_pxlmouse_planar(scr_stat *scp, int x, int y)
1093 {
1094 	const struct mousedata *mdp;
1095 	vm_offset_t p;
1096 	int bx, by, i, line_width, xend, xoff, yend, yoff;
1097 
1098 	mdp = (scp->font_size < 14) ? &mouse9x13 : &mouse10x16;
1099 
1100 	/*
1101 	 * It is only necessary to remove the mouse image where it overlaps
1102 	 * the border.  Determine the overlap, and do nothing if it is empty.
1103 	 */
1104 	bx = (scp->xoff + scp->xsize) * 8;
1105 	by = (scp->yoff + scp->ysize) * scp->font_size;
1106 	xend = imin(x + mdp->md_width, scp->xpixel);
1107 	yend = imin(y + mdp->md_height, scp->ypixel);
1108 	if (xend <= bx && yend <= by)
1109 		return;
1110 
1111 	/* Repaint the non-empty overlap. */
1112 	line_width = scp->sc->adp->va_line_width;
1113 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
1114 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
1115 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
1116 	outw(GDCIDX, 0xff08);		/* bit mask */
1117 	outw(GDCIDX, (scp->border << 8) | 0x00);	/* set/reset */
1118 	for (i = x / 8, xoff = i * 8; xoff < xend; ++i, xoff += 8) {
1119 		yoff = (xoff >= bx) ? y : by;
1120 		p = scp->sc->adp->va_window + yoff * line_width + i;
1121 		for (; yoff < yend; ++yoff, p += line_width)
1122 			writeb(p, 0);
1123 	}
1124 	outw(GDCIDX, 0x0000);		/* set/reset */
1125 	outw(GDCIDX, 0x0001);		/* set/reset enable */
1126 }
1127 
1128 static void
1129 vga_pxlmouse_direct(scr_stat *scp, int x, int y, int on)
1130 {
1131 	const struct mousedata *mdp;
1132 	vm_offset_t p;
1133 	int line_width, pixel_size;
1134 	int xend, yend;
1135 	static int x_old = 0, xend_old = 0;
1136 	static int y_old = 0, yend_old = 0;
1137 	int i, j;
1138 	uint32_t *u32;
1139 	uint16_t *u16;
1140 	uint8_t  *u8;
1141 	int bpp;
1142 
1143 	mdp = (scp->font_size < 14) ? &mouse9x13 : &mouse10x16;
1144 
1145 	/*
1146 	 * Determine overlap with the border and then if removing, do nothing
1147 	 * if the overlap is empty.
1148 	 */
1149 	xend = imin(x + mdp->md_width, scp->xpixel);
1150 	yend = imin(y + mdp->md_height, scp->ypixel);
1151 	if (!on && xend <= (scp->xoff + scp->xsize) * 8 &&
1152 	    yend <= (scp->yoff + scp->ysize) * scp->font_size)
1153 		return;
1154 
1155 	bpp = scp->sc->adp->va_info.vi_depth;
1156 
1157 	if ((bpp == 16) && (scp->sc->adp->va_info.vi_pixel_fsizes[1] == 5))
1158 		bpp = 15;
1159 
1160 	line_width = scp->sc->adp->va_line_width;
1161 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
1162 
1163 	if (on)
1164 		goto do_on;
1165 
1166 	/*
1167 	 * Repaint overlap with the border and nearby.  Unlike in the planar
1168 	 * case, we kept track of everything under the cursor so can restore
1169 	 * it all, but we don't completely trust the saved state to be still
1170 	 * relevant, so do nothing if it is obviously stale.
1171 	 */
1172 	if (x != x_old || y != y_old || xend != xend_old || yend != yend_old)
1173 		return;
1174 
1175 	p = scp->sc->adp->va_window + y_old * line_width + x_old * pixel_size;
1176 
1177 	for (i = 0; i < (yend_old - y_old); i++) {
1178 		for (j = (xend_old - x_old - 1); j >= 0; j--) {
1179 			switch (bpp) {
1180 			case 32:
1181 				u32 = (uint32_t*)(p + j * pixel_size);
1182 				writel(u32, mouse_buf32[i * 16 + j]);
1183 				break;
1184 			case 16:
1185 				/* FALLTHROUGH */
1186 			case 15:
1187 				u16 = (uint16_t*)(p + j * pixel_size);
1188 				writew(u16, mouse_buf16[i * 16 + j]);
1189 				break;
1190 			case 8:
1191 				u8 = (uint8_t*)(p + j * pixel_size);
1192 				writeb(u8, mouse_buf8[i * 16 + j]);
1193 				break;
1194 			}
1195 		}
1196 
1197 		p += line_width;
1198 	}
1199 	return;
1200 
1201 do_on:
1202 	p = scp->sc->adp->va_window + y * line_width + x * pixel_size;
1203 
1204 	for (i = 0; i < (yend - y); i++) {
1205 		for (j = (xend - x - 1); j >= 0; j--) {
1206 			switch (bpp) {
1207 			case 32:
1208 				u32 = (uint32_t*)(p + j * pixel_size);
1209 				mouse_buf32[i * 16 + j] = *u32;
1210 				if (mdp->md_interior[i] & (1 << (15 - j)))
1211 					writel(u32, vga_palette32[15]);
1212 				else if (mdp->md_border[i] & (1 << (15 - j)))
1213 					writel(u32, 0);
1214 				break;
1215 			case 16:
1216 				u16 = (uint16_t*)(p + j * pixel_size);
1217 				mouse_buf16[i * 16 + j] = *u16;
1218 				if (mdp->md_interior[i] & (1 << (15 - j)))
1219 					writew(u16, vga_palette16[15]);
1220 				else if (mdp->md_border[i] & (1 << (15 - j)))
1221 					writew(u16, 0);
1222 				break;
1223 			case 15:
1224 				u16 = (uint16_t*)(p  + j * pixel_size);
1225 				mouse_buf16[i * 16 + j] = *u16;
1226 				if (mdp->md_interior[i] & (1 << (15 - j)))
1227 					writew(u16, vga_palette15[15]);
1228 				else if (mdp->md_border[i] & (1 << (15 - j)))
1229 					writew(u16, 0);
1230 				break;
1231 			case 8:
1232 				u8 = (uint8_t*)(p + j * pixel_size);
1233 				mouse_buf8[i * 16 + j] = *u8;
1234 				if (mdp->md_interior[i] & (1 << (15 - j)))
1235 					writeb(u8, 15);
1236 				else if (mdp->md_border[i] & (1 << (15 - j)))
1237 					writeb(u8, 0);
1238 				break;
1239 			}
1240 		}
1241 
1242 		p += line_width;
1243 	}
1244 
1245 	x_old = x;
1246 	y_old = y;
1247 	xend_old = xend;
1248 	yend_old = yend;
1249 }
1250 
1251 static void
1252 vga_pxlmouse_planar(scr_stat *scp, int x, int y, int on)
1253 {
1254 	if (on)
1255 		draw_pxlmouse_planar(scp, x, y);
1256 	else
1257 		remove_pxlmouse_planar(scp, x, y);
1258 }
1259 
1260 #endif /* SC_NO_CUTPASTE */
1261 #endif /* SC_PIXEL_MODE */
1262 
1263 #ifndef SC_NO_MODE_CHANGE
1264 
1265 /* graphics mode renderer */
1266 
1267 static void
1268 vga_grborder(scr_stat *scp, int color)
1269 {
1270 	vidd_set_border(scp->sc->adp, color);
1271 }
1272 
1273 #endif
1274