xref: /freebsd/sys/dev/syscons/scvgarndr.c (revision aa64588d28258aef88cc33b8043112e8856948d0)
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 static u_short mouse_and_mask[16] = {
163 	0xc000, 0xe000, 0xf000, 0xf800, 0xfc00, 0xfe00, 0xff00, 0xff80,
164 	0xfe00, 0x1e00, 0x1f00, 0x0f00, 0x0f00, 0x0000, 0x0000, 0x0000
165 };
166 static u_short mouse_or_mask[16] = {
167 	0x0000, 0x4000, 0x6000, 0x7000, 0x7800, 0x7c00, 0x7e00, 0x6800,
168 	0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000
169 };
170 #endif
171 #endif
172 
173 #ifdef SC_PIXEL_MODE
174 #define	VIDEO_MEMORY_POS(scp, pos, x) 					\
175 	scp->sc->adp->va_window +					\
176 	x * scp->xoff +							\
177 	scp->yoff * scp->font_size * scp->sc->adp->va_line_width +	\
178 	x * (pos % scp->xsize) +					\
179 	scp->font_size * scp->sc->adp->va_line_width * (pos / scp->xsize)
180 
181 #define	vga_drawpxl(pos, color)						\
182 	switch (scp->sc->adp->va_info.vi_depth) {			\
183 		case 32:						\
184 			writel(pos, vga_palette32[color]);		\
185 			break;						\
186 		case 24:						\
187 			if (((pos) & 1) == 0) {				\
188 				writew(pos, vga_palette32[color]);	\
189 				writeb(pos + 2, vga_palette32[color] >> 16);\
190 			} else {					\
191 				writeb(pos, vga_palette32[color]);	\
192 				writew(pos + 1, vga_palette32[color] >> 8);\
193 			}						\
194 			break;						\
195 		case 16:						\
196 			if (scp->sc->adp->va_info.vi_pixel_fsizes[1] == 5)\
197 				writew(pos, vga_palette15[color]);	\
198 			else						\
199 				writew(pos, vga_palette16[color]);	\
200 			break;						\
201 		case 15:						\
202 			writew(pos, vga_palette15[color]);		\
203 			break;						\
204 		case 8:							\
205 			writeb(pos, (uint8_t)color);			\
206 		}
207 
208 static uint32_t vga_palette32[16] = {
209 	0x000000, 0x0000ad, 0x00ad00, 0x00adad,
210 	0xad0000, 0xad00ad, 0xad5200, 0xadadad,
211 	0x525252, 0x5252ff, 0x52ff52, 0x52ffff,
212 	0xff5252, 0xff52ff, 0xffff52, 0xffffff
213 };
214 
215 static uint16_t vga_palette16[16] = {
216 	0x0000, 0x0016, 0x0560, 0x0576, 0xb000, 0xb016, 0xb2a0, 0xb576,
217 	0x52aa, 0x52bf, 0x57ea, 0x57ff, 0xfaaa, 0xfabf, 0xffea, 0xffff
218 };
219 
220 static uint16_t vga_palette15[16] = {
221 	0x0000, 0x0016, 0x02c0, 0x02d6, 0x5800, 0x5816, 0x5940, 0x5ad6,
222 	0x294a, 0x295f, 0x2bea, 0x2bff, 0x7d4a, 0x7d5f, 0x7fea, 0x7fff
223 };
224 
225 #ifndef SC_NO_CUTPASTE
226 static uint32_t mouse_buf32[256];
227 static uint16_t mouse_buf16[256];
228 static uint8_t  mouse_buf8[256];
229 #endif
230 #endif
231 
232 static void
233 vga_nop(scr_stat *scp)
234 {
235 }
236 
237 /* text mode renderer */
238 
239 static void
240 vga_txtclear(scr_stat *scp, int c, int attr)
241 {
242 	sc_vtb_clear(&scp->scr, c, attr);
243 }
244 
245 static void
246 vga_txtborder(scr_stat *scp, int color)
247 {
248 	vidd_set_border(scp->sc->adp, color);
249 }
250 
251 static void
252 vga_txtdraw(scr_stat *scp, int from, int count, int flip)
253 {
254 	vm_offset_t p;
255 	int c;
256 	int a;
257 
258 	if (from + count > scp->xsize*scp->ysize)
259 		count = scp->xsize*scp->ysize - from;
260 
261 	if (flip) {
262 		for (p = sc_vtb_pointer(&scp->scr, from); count-- > 0; ++from) {
263 			c = sc_vtb_getc(&scp->vtb, from);
264 			a = sc_vtb_geta(&scp->vtb, from);
265 			a = (a & 0x8800) | ((a & 0x7000) >> 4)
266 				| ((a & 0x0700) << 4);
267 			p = sc_vtb_putchar(&scp->scr, p, c, a);
268 		}
269 	} else {
270 		sc_vtb_copy(&scp->vtb, from, &scp->scr, from, count);
271 	}
272 }
273 
274 static void
275 vga_txtcursor_shape(scr_stat *scp, int base, int height, int blink)
276 {
277 	if (base < 0 || base >= scp->font_size)
278 		return;
279 	/* the caller may set height <= 0 in order to disable the cursor */
280 #if 0
281 	scp->curs_attr.base = base;
282 	scp->curs_attr.height = height;
283 #endif
284 	vidd_set_hw_cursor_shape(scp->sc->adp, base, height,
285 	    scp->font_size, blink);
286 }
287 
288 static void
289 draw_txtcharcursor(scr_stat *scp, int at, u_short c, u_short a, int flip)
290 {
291 	sc_softc_t *sc;
292 
293 	sc = scp->sc;
294 	scp->cursor_saveunder_char = c;
295 	scp->cursor_saveunder_attr = a;
296 
297 #ifndef SC_NO_FONT_LOADING
298 	if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
299 		unsigned char *font;
300 		int h;
301 		int i;
302 
303 		if (scp->font_size < 14) {
304 			font = sc->font_8;
305 			h = 8;
306 		} else if (scp->font_size >= 16) {
307 			font = sc->font_16;
308 			h = 16;
309 		} else {
310 			font = sc->font_14;
311 			h = 14;
312 		}
313 		if (scp->curs_attr.base >= h)
314 			return;
315 		if (flip)
316 			a = (a & 0x8800)
317 				| ((a & 0x7000) >> 4) | ((a & 0x0700) << 4);
318 		bcopy(font + c*h, font + sc->cursor_char*h, h);
319 		font = font + sc->cursor_char*h;
320 		for (i = imax(h - scp->curs_attr.base - scp->curs_attr.height, 0);
321 			i < h - scp->curs_attr.base; ++i) {
322 			font[i] ^= 0xff;
323 		}
324 		/* XXX */
325 		vidd_load_font(sc->adp, 0, h, 8, font, sc->cursor_char, 1);
326 		sc_vtb_putc(&scp->scr, at, sc->cursor_char, a);
327 	} else
328 #endif /* SC_NO_FONT_LOADING */
329 	{
330 		if ((a & 0x7000) == 0x7000) {
331 			a &= 0x8f00;
332 			if ((a & 0x0700) == 0)
333 				a |= 0x0700;
334 		} else {
335 			a |= 0x7000;
336 			if ((a & 0x0700) == 0x0700)
337 				a &= 0xf000;
338 		}
339 		if (flip)
340 			a = (a & 0x8800)
341 				| ((a & 0x7000) >> 4) | ((a & 0x0700) << 4);
342 		sc_vtb_putc(&scp->scr, at, c, a);
343 	}
344 }
345 
346 static void
347 vga_txtcursor(scr_stat *scp, int at, int blink, int on, int flip)
348 {
349 	video_adapter_t *adp;
350 	int cursor_attr;
351 
352 	if (scp->curs_attr.height <= 0)	/* the text cursor is disabled */
353 		return;
354 
355 	adp = scp->sc->adp;
356 	if (blink) {
357 		scp->status |= VR_CURSOR_BLINK;
358 		if (on) {
359 			scp->status |= VR_CURSOR_ON;
360 			vidd_set_hw_cursor(adp, at%scp->xsize,
361 			    at/scp->xsize);
362 		} else {
363 			if (scp->status & VR_CURSOR_ON)
364 				vidd_set_hw_cursor(adp, -1, -1);
365 			scp->status &= ~VR_CURSOR_ON;
366 		}
367 	} else {
368 		scp->status &= ~VR_CURSOR_BLINK;
369 		if (on) {
370 			scp->status |= VR_CURSOR_ON;
371 			draw_txtcharcursor(scp, at,
372 					   sc_vtb_getc(&scp->scr, at),
373 					   sc_vtb_geta(&scp->scr, at),
374 					   flip);
375 		} else {
376 			cursor_attr = scp->cursor_saveunder_attr;
377 			if (flip)
378 				cursor_attr = (cursor_attr & 0x8800)
379 					| ((cursor_attr & 0x7000) >> 4)
380 					| ((cursor_attr & 0x0700) << 4);
381 			if (scp->status & VR_CURSOR_ON)
382 				sc_vtb_putc(&scp->scr, at,
383 					    scp->cursor_saveunder_char,
384 					    cursor_attr);
385 			scp->status &= ~VR_CURSOR_ON;
386 		}
387 	}
388 }
389 
390 static void
391 vga_txtblink(scr_stat *scp, int at, int flip)
392 {
393 }
394 
395 #ifndef SC_NO_CUTPASTE
396 
397 static void
398 draw_txtmouse(scr_stat *scp, int x, int y)
399 {
400 #ifndef SC_ALT_MOUSE_IMAGE
401     if (ISMOUSEAVAIL(scp->sc->adp->va_flags)) {
402 	u_char font_buf[128];
403 	u_short cursor[32];
404 	u_char c;
405 	int pos;
406 	int xoffset, yoffset;
407 	int crtc_addr;
408 	int i;
409 
410 	/* prepare mousepointer char's bitmaps */
411 	pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff;
412 	bcopy(scp->font + sc_vtb_getc(&scp->scr, pos)*scp->font_size,
413 	      &font_buf[0], scp->font_size);
414 	bcopy(scp->font + sc_vtb_getc(&scp->scr, pos + 1)*scp->font_size,
415 	      &font_buf[32], scp->font_size);
416 	bcopy(scp->font
417 		 + sc_vtb_getc(&scp->scr, pos + scp->xsize)*scp->font_size,
418 	      &font_buf[64], scp->font_size);
419 	bcopy(scp->font
420 		 + sc_vtb_getc(&scp->scr, pos + scp->xsize + 1)*scp->font_size,
421 	      &font_buf[96], scp->font_size);
422 	for (i = 0; i < scp->font_size; ++i) {
423 		cursor[i] = font_buf[i]<<8 | font_buf[i+32];
424 		cursor[i + scp->font_size] = font_buf[i+64]<<8 | font_buf[i+96];
425 	}
426 
427 	/* now and-or in the mousepointer image */
428 	xoffset = x%8;
429 	yoffset = y%scp->font_size;
430 	for (i = 0; i < 16; ++i) {
431 		cursor[i + yoffset] =
432 	    		(cursor[i + yoffset] & ~(mouse_and_mask[i] >> xoffset))
433 	    		| (mouse_or_mask[i] >> xoffset);
434 	}
435 	for (i = 0; i < scp->font_size; ++i) {
436 		font_buf[i] = (cursor[i] & 0xff00) >> 8;
437 		font_buf[i + 32] = cursor[i] & 0xff;
438 		font_buf[i + 64] = (cursor[i + scp->font_size] & 0xff00) >> 8;
439 		font_buf[i + 96] = cursor[i + scp->font_size] & 0xff;
440 	}
441 
442 #if 1
443 	/* wait for vertical retrace to avoid jitter on some videocards */
444 	crtc_addr = scp->sc->adp->va_crtc_addr;
445 	while (!(inb(crtc_addr + 6) & 0x08)) /* idle */ ;
446 #endif
447 	c = scp->sc->mouse_char;
448 	vidd_load_font(scp->sc->adp, 0, 32, 8, font_buf, c, 4);
449 
450 	sc_vtb_putc(&scp->scr, pos, c, sc_vtb_geta(&scp->scr, pos));
451 	/* FIXME: may be out of range! */
452 	sc_vtb_putc(&scp->scr, pos + scp->xsize, c + 2,
453 		    sc_vtb_geta(&scp->scr, pos + scp->xsize));
454 	if (x < (scp->xsize - 1)*8) {
455 		sc_vtb_putc(&scp->scr, pos + 1, c + 1,
456 			    sc_vtb_geta(&scp->scr, pos + 1));
457 		sc_vtb_putc(&scp->scr, pos + scp->xsize + 1, c + 3,
458 			    sc_vtb_geta(&scp->scr, pos + scp->xsize + 1));
459 	}
460     } else
461 #endif /* SC_ALT_MOUSE_IMAGE */
462     {
463 	/* Red, magenta and brown are mapped to green to to keep it readable */
464 	static const int col_conv[16] = {
465 		6, 6, 6, 6, 2, 2, 2, 6, 14, 14, 14, 14, 10, 10, 10, 14
466 	};
467 	int pos;
468 	int color;
469 	int a;
470 
471 	pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff;
472 	a = sc_vtb_geta(&scp->scr, pos);
473 	if (scp->sc->adp->va_flags & V_ADP_COLOR)
474 		color = (col_conv[(a & 0xf000) >> 12] << 12)
475 			| ((a & 0x0f00) | 0x0800);
476 	else
477 		color = ((a & 0xf000) >> 4) | ((a & 0x0f00) << 4);
478 	sc_vtb_putc(&scp->scr, pos, sc_vtb_getc(&scp->scr, pos), color);
479     }
480 }
481 
482 static void
483 remove_txtmouse(scr_stat *scp, int x, int y)
484 {
485 }
486 
487 static void
488 vga_txtmouse(scr_stat *scp, int x, int y, int on)
489 {
490 	if (on)
491 		draw_txtmouse(scp, x, y);
492 	else
493 		remove_txtmouse(scp, x, y);
494 }
495 
496 #endif /* SC_NO_CUTPASTE */
497 
498 #ifdef SC_PIXEL_MODE
499 
500 /* pixel (raster text) mode renderer */
501 
502 static void
503 vga_rndrinit(scr_stat *scp)
504 {
505 	if (scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_PLANAR) {
506 		scp->rndr->clear = vga_pxlclear_planar;
507 		scp->rndr->draw_border = vga_pxlborder_planar;
508 		scp->rndr->draw = vga_vgadraw_planar;
509 		scp->rndr->draw_cursor = vga_pxlcursor_planar;
510 		scp->rndr->blink_cursor = vga_pxlblink_planar;
511 		scp->rndr->draw_mouse = vga_pxlmouse_planar;
512 	} else
513 	if (scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT ||
514 	    scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_PACKED) {
515 		scp->rndr->clear = vga_pxlclear_direct;
516 		scp->rndr->draw_border = vga_pxlborder_direct;
517 		scp->rndr->draw = vga_vgadraw_direct;
518 		scp->rndr->draw_cursor = vga_pxlcursor_direct;
519 		scp->rndr->blink_cursor = vga_pxlblink_direct;
520 		scp->rndr->draw_mouse = vga_pxlmouse_direct;
521 	}
522 }
523 
524 static void
525 vga_pxlclear_direct(scr_stat *scp, int c, int attr)
526 {
527 	vm_offset_t p;
528 	int line_width;
529 	int pixel_size;
530 	int lines;
531 	int i;
532 
533 	line_width = scp->sc->adp->va_line_width;
534 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
535 	lines = scp->ysize * scp->font_size;
536 	p = scp->sc->adp->va_window +
537 	    line_width * scp->yoff * scp->font_size +
538 	    scp->xoff * 8 * pixel_size;
539 
540 	for (i = 0; i < lines; ++i) {
541 		bzero_io((void *)p, scp->xsize * 8 * pixel_size);
542 		p += line_width;
543 	}
544 }
545 
546 static void
547 vga_pxlclear_planar(scr_stat *scp, int c, int attr)
548 {
549 	vm_offset_t p;
550 	int line_width;
551 	int lines;
552 	int i;
553 
554 	/* XXX: we are just filling the screen with the background color... */
555 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
556 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
557 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
558 	outw(GDCIDX, 0xff08);		/* bit mask */
559 	outw(GDCIDX, ((attr & 0xf000) >> 4) | 0x00); /* set/reset */
560 	line_width = scp->sc->adp->va_line_width;
561 	lines = scp->ysize*scp->font_size;
562 	p = scp->sc->adp->va_window + line_width*scp->yoff*scp->font_size
563 		+ scp->xoff;
564 	for (i = 0; i < lines; ++i) {
565 		bzero_io((void *)p, scp->xsize);
566 		p += line_width;
567 	}
568 	outw(GDCIDX, 0x0000);		/* set/reset */
569 	outw(GDCIDX, 0x0001);		/* set/reset enable */
570 }
571 
572 static void
573 vga_pxlborder_direct(scr_stat *scp, int color)
574 {
575 	vm_offset_t s;
576 	vm_offset_t e;
577 	vm_offset_t f;
578 	int line_width;
579 	int pixel_size;
580 	int x;
581 	int y;
582 	int i;
583 
584 	line_width = scp->sc->adp->va_line_width;
585 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
586 
587 	if (scp->yoff > 0) {
588 		s = scp->sc->adp->va_window;
589 		e = s + line_width * scp->yoff * scp->font_size;
590 
591 		for (f = s; f < e; f += pixel_size)
592 			vga_drawpxl(f, color);
593 	}
594 
595 	y = (scp->yoff + scp->ysize) * scp->font_size;
596 
597 	if (scp->ypixel > y) {
598 		s = scp->sc->adp->va_window + line_width * y;
599 		e = s + line_width * (scp->ypixel - y);
600 
601 		for (f = s; f < e; f += pixel_size)
602 			vga_drawpxl(f, color);
603 	}
604 
605 	y = scp->yoff * scp->font_size;
606 	x = scp->xpixel / 8 - scp->xoff - scp->xsize;
607 
608 	for (i = 0; i < scp->ysize * scp->font_size; ++i) {
609 		if (scp->xoff > 0) {
610 			s = scp->sc->adp->va_window + line_width * (y + i);
611 			e = s + scp->xoff * 8 * pixel_size;
612 
613 			for (f = s; f < e; f += pixel_size)
614 				vga_drawpxl(f, color);
615 		}
616 
617 		if (x > 0) {
618 			s = scp->sc->adp->va_window + line_width * (y + i) +
619 			    scp->xoff * 8 * pixel_size +
620 			    scp->xsize * 8 * pixel_size;
621 			e = s + x * 8 * pixel_size;
622 
623 			for (f = s; f < e; f += pixel_size)
624 				vga_drawpxl(f, color);
625 		}
626 	}
627 }
628 
629 static void
630 vga_pxlborder_planar(scr_stat *scp, int color)
631 {
632 	vm_offset_t p;
633 	int line_width;
634 	int x;
635 	int y;
636 	int i;
637 
638 	vidd_set_border(scp->sc->adp, color);
639 
640 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
641 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
642 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
643 	outw(GDCIDX, 0xff08);		/* bit mask */
644 	outw(GDCIDX, (color << 8) | 0x00);	/* set/reset */
645 	line_width = scp->sc->adp->va_line_width;
646 	p = scp->sc->adp->va_window;
647 	if (scp->yoff > 0)
648 		bzero_io((void *)p, line_width*scp->yoff*scp->font_size);
649 	y = (scp->yoff + scp->ysize)*scp->font_size;
650 	if (scp->ypixel > y)
651 		bzero_io((void *)(p + line_width*y), line_width*(scp->ypixel - y));
652 	y = scp->yoff*scp->font_size;
653 	x = scp->xpixel/8 - scp->xoff - scp->xsize;
654 	for (i = 0; i < scp->ysize*scp->font_size; ++i) {
655 		if (scp->xoff > 0)
656 			bzero_io((void *)(p + line_width*(y + i)), scp->xoff);
657 		if (x > 0)
658 			bzero_io((void *)(p + line_width*(y + i)
659 				     + scp->xoff + scp->xsize), x);
660 	}
661 	outw(GDCIDX, 0x0000);		/* set/reset */
662 	outw(GDCIDX, 0x0001);		/* set/reset enable */
663 }
664 
665 static void
666 vga_egadraw(scr_stat *scp, int from, int count, int flip)
667 {
668 	vm_offset_t d;
669 	vm_offset_t e;
670 	u_char *f;
671 	u_short bg;
672 	u_short col1, col2;
673 	int line_width;
674 	int i, j;
675 	int a;
676 	u_char c;
677 
678 	line_width = scp->sc->adp->va_line_width;
679 
680 	d = VIDEO_MEMORY_POS(scp, from, 1);
681 
682 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
683 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
684 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
685 	bg = -1;
686 	if (from + count > scp->xsize*scp->ysize)
687 		count = scp->xsize*scp->ysize - from;
688 	for (i = from; count-- > 0; ++i) {
689 		a = sc_vtb_geta(&scp->vtb, i);
690 		if (flip) {
691 			col1 = ((a & 0x7000) >> 4) | (a & 0x0800);
692 			col2 = ((a & 0x8000) >> 4) | (a & 0x0700);
693 		} else {
694 			col1 = (a & 0x0f00);
695 			col2 = (a & 0xf000) >> 4;
696 		}
697 		/* set background color in EGA/VGA latch */
698 		if (bg != col2) {
699 			bg = col2;
700 			outw(GDCIDX, bg | 0x00);	/* set/reset */
701 			outw(GDCIDX, 0xff08);		/* bit mask */
702 			writeb(d, 0);
703 			c = readb(d);	/* set bg color in the latch */
704 		}
705 		/* foreground color */
706 		outw(GDCIDX, col1 | 0x00);		/* set/reset */
707 		e = d;
708 		f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]);
709 		for (j = 0; j < scp->font_size; ++j, ++f) {
710 			outw(GDCIDX, (*f << 8) | 0x08);	/* bit mask */
711 	        	writeb(e, 0);
712 			e += line_width;
713 		}
714 		++d;
715 		if ((i % scp->xsize) == scp->xsize - 1)
716 			d += scp->xoff*2
717 				 + (scp->font_size - 1)*line_width;
718 	}
719 	outw(GDCIDX, 0x0000);		/* set/reset */
720 	outw(GDCIDX, 0x0001);		/* set/reset enable */
721 	outw(GDCIDX, 0xff08);		/* bit mask */
722 }
723 
724 static void
725 vga_vgadraw_direct(scr_stat *scp, int from, int count, int flip)
726 {
727 	vm_offset_t d = 0;
728 	vm_offset_t e;
729 	u_char *f;
730 	u_short col1, col2, color;
731 	int line_width, pixel_size;
732 	int i, j, k;
733 	int a;
734 
735 	line_width = scp->sc->adp->va_line_width;
736 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
737 
738 	d = VIDEO_MEMORY_POS(scp, from, 8 * pixel_size);
739 
740 	if (from + count > scp->xsize * scp->ysize)
741 		count = scp->xsize * scp->ysize - from;
742 
743 	for (i = from; count-- > 0; ++i) {
744 		a = sc_vtb_geta(&scp->vtb, i);
745 
746 		if (flip) {
747 			col1 = (((a & 0x7000) >> 4) | (a & 0x0800)) >> 8;
748 			col2 = (((a & 0x8000) >> 4) | (a & 0x0700)) >> 8;
749 		} else {
750 			col1 = (a & 0x0f00) >> 8;
751 			col2 = (a & 0xf000) >> 12;
752 		}
753 
754 		e = d;
755 		f = &(scp->font[sc_vtb_getc(&scp->vtb, i) * scp->font_size]);
756 
757 		for (j = 0; j < scp->font_size; ++j, ++f) {
758 			for (k = 0; k < 8; ++k) {
759 				color = *f & (1 << (7 - k)) ? col1 : col2;
760 				vga_drawpxl(e + pixel_size * k, color);
761 			}
762 
763 			e += line_width;
764 		}
765 
766 		d += 8 * pixel_size;
767 
768 		if ((i % scp->xsize) == scp->xsize - 1)
769 			d += scp->xoff * 16 * pixel_size +
770 			     (scp->font_size - 1) * line_width;
771 	}
772 }
773 
774 static void
775 vga_vgadraw_planar(scr_stat *scp, int from, int count, int flip)
776 {
777 	vm_offset_t d;
778 	vm_offset_t e;
779 	u_char *f;
780 	u_short bg;
781 	u_short col1, col2;
782 	int line_width;
783 	int i, j;
784 	int a;
785 	u_char c;
786 
787 	d = VIDEO_MEMORY_POS(scp, from, 1);
788 
789 	line_width = scp->sc->adp->va_line_width;
790 
791 	outw(GDCIDX, 0x0305);		/* read mode 0, write mode 3 */
792 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
793 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
794 	outw(GDCIDX, 0xff08);		/* bit mask */
795 	bg = -1;
796 	if (from + count > scp->xsize*scp->ysize)
797 		count = scp->xsize*scp->ysize - from;
798 	for (i = from; count-- > 0; ++i) {
799 		a = sc_vtb_geta(&scp->vtb, i);
800 		if (flip) {
801 			col1 = ((a & 0x7000) >> 4) | (a & 0x0800);
802 			col2 = ((a & 0x8000) >> 4) | (a & 0x0700);
803 		} else {
804 			col1 = (a & 0x0f00);
805 			col2 = (a & 0xf000) >> 4;
806 		}
807 		/* set background color in EGA/VGA latch */
808 		if (bg != col2) {
809 			bg = col2;
810 			outw(GDCIDX, 0x0005);	/* read mode 0, write mode 0 */
811 			outw(GDCIDX, bg | 0x00); /* set/reset */
812 			writeb(d, 0);
813 			c = readb(d);		/* set bg color in the latch */
814 			outw(GDCIDX, 0x0305);	/* read mode 0, write mode 3 */
815 		}
816 		/* foreground color */
817 		outw(GDCIDX, col1 | 0x00);	/* set/reset */
818 		e = d;
819 		f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]);
820 		for (j = 0; j < scp->font_size; ++j, ++f) {
821 	        	writeb(e, *f);
822 			e += line_width;
823 		}
824 		++d;
825 		if ((i % scp->xsize) == scp->xsize - 1)
826 			d += scp->xoff*2
827 				 + (scp->font_size - 1)*line_width;
828 	}
829 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
830 	outw(GDCIDX, 0x0000);		/* set/reset */
831 	outw(GDCIDX, 0x0001);		/* set/reset enable */
832 }
833 
834 static void
835 vga_pxlcursor_shape(scr_stat *scp, int base, int height, int blink)
836 {
837 	if (base < 0 || base >= scp->font_size)
838 		return;
839 	/* the caller may set height <= 0 in order to disable the cursor */
840 #if 0
841 	scp->curs_attr.base = base;
842 	scp->curs_attr.height = height;
843 #endif
844 }
845 
846 static void
847 draw_pxlcursor_direct(scr_stat *scp, int at, int on, int flip)
848 {
849 	vm_offset_t d = 0;
850 	u_char *f;
851 	int line_width, pixel_size;
852 	int height;
853 	int col1, col2, color;
854 	int a;
855 	int i, j;
856 
857 	line_width = scp->sc->adp->va_line_width;
858 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
859 
860 	d = VIDEO_MEMORY_POS(scp, at, 8 * pixel_size) +
861 	    (scp->font_size - scp->curs_attr.base - 1) * line_width;
862 
863 	a = sc_vtb_geta(&scp->vtb, at);
864 
865 	if (flip) {
866 		col1 = ((on) ? (a & 0x0f00) : ((a & 0xf000) >> 4)) >> 8;
867 		col2 = ((on) ? ((a & 0xf000) >> 4) : (a & 0x0f00)) >> 8;
868 	} else {
869 		col1 = ((on) ? ((a & 0xf000) >> 4) : (a & 0x0f00)) >> 8;
870 		col2 = ((on) ? (a & 0x0f00) : ((a & 0xf000) >> 4)) >> 8;
871 	}
872 
873 	f = &(scp->font[sc_vtb_getc(&scp->vtb, at) * scp->font_size +
874 	      scp->font_size - scp->curs_attr.base - 1]);
875 
876 	height = imin(scp->curs_attr.height, scp->font_size);
877 
878 	for (i = 0; i < height; ++i, --f) {
879 		for (j = 0; j < 8; ++j) {
880 			color = *f & (1 << (7 - j)) ? col1 : col2;
881 			vga_drawpxl(d + pixel_size * j, color);
882 		}
883 
884 		d -= line_width;
885 	}
886 }
887 
888 static void
889 draw_pxlcursor_planar(scr_stat *scp, int at, int on, int flip)
890 {
891 	vm_offset_t d;
892 	u_char *f;
893 	int line_width;
894 	int height;
895 	int col;
896 	int a;
897 	int i;
898 	u_char c;
899 
900 	line_width = scp->sc->adp->va_line_width;
901 
902 	d = VIDEO_MEMORY_POS(scp, at, 1) +
903 	    (scp->font_size - scp->curs_attr.base - 1) * line_width;
904 
905 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
906 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
907 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
908 	/* set background color in EGA/VGA latch */
909 	a = sc_vtb_geta(&scp->vtb, at);
910 	if (flip)
911 		col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00);
912 	else
913 		col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4);
914 	outw(GDCIDX, col | 0x00);	/* set/reset */
915 	outw(GDCIDX, 0xff08);		/* bit mask */
916 	writeb(d, 0);
917 	c = readb(d);			/* set bg color in the latch */
918 	/* foreground color */
919 	if (flip)
920 		col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4);
921 	else
922 		col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00);
923 	outw(GDCIDX, col | 0x00);	/* set/reset */
924 	f = &(scp->font[sc_vtb_getc(&scp->vtb, at)*scp->font_size
925 		+ scp->font_size - scp->curs_attr.base - 1]);
926 	height = imin(scp->curs_attr.height, scp->font_size);
927 	for (i = 0; i < height; ++i, --f) {
928 		outw(GDCIDX, (*f << 8) | 0x08);	/* bit mask */
929 	       	writeb(d, 0);
930 		d -= line_width;
931 	}
932 	outw(GDCIDX, 0x0000);		/* set/reset */
933 	outw(GDCIDX, 0x0001);		/* set/reset enable */
934 	outw(GDCIDX, 0xff08);		/* bit mask */
935 }
936 
937 static int pxlblinkrate = 0;
938 
939 static void
940 vga_pxlcursor_direct(scr_stat *scp, int at, int blink, int on, int flip)
941 {
942 	if (scp->curs_attr.height <= 0)	/* the text cursor is disabled */
943 		return;
944 
945 	if (on) {
946 		if (!blink) {
947 			scp->status |= VR_CURSOR_ON;
948 			draw_pxlcursor_direct(scp, at, on, flip);
949 		} else if (++pxlblinkrate & 4) {
950 			pxlblinkrate = 0;
951 			scp->status ^= VR_CURSOR_ON;
952 			draw_pxlcursor_direct(scp, at,
953 					      scp->status & VR_CURSOR_ON,
954 					      flip);
955 		}
956 	} else {
957 		if (scp->status & VR_CURSOR_ON)
958 			draw_pxlcursor_direct(scp, at, on, flip);
959 		scp->status &= ~VR_CURSOR_ON;
960 	}
961 	if (blink)
962 		scp->status |= VR_CURSOR_BLINK;
963 	else
964 		scp->status &= ~VR_CURSOR_BLINK;
965 }
966 
967 static void
968 vga_pxlcursor_planar(scr_stat *scp, int at, int blink, int on, int flip)
969 {
970 	if (scp->curs_attr.height <= 0)	/* the text cursor is disabled */
971 		return;
972 
973 	if (on) {
974 		if (!blink) {
975 			scp->status |= VR_CURSOR_ON;
976 			draw_pxlcursor_planar(scp, at, on, flip);
977 		} else if (++pxlblinkrate & 4) {
978 			pxlblinkrate = 0;
979 			scp->status ^= VR_CURSOR_ON;
980 			draw_pxlcursor_planar(scp, at,
981 					      scp->status & VR_CURSOR_ON,
982 					      flip);
983 		}
984 	} else {
985 		if (scp->status & VR_CURSOR_ON)
986 			draw_pxlcursor_planar(scp, at, on, flip);
987 		scp->status &= ~VR_CURSOR_ON;
988 	}
989 	if (blink)
990 		scp->status |= VR_CURSOR_BLINK;
991 	else
992 		scp->status &= ~VR_CURSOR_BLINK;
993 }
994 
995 static void
996 vga_pxlblink_direct(scr_stat *scp, int at, int flip)
997 {
998 	if (!(scp->status & VR_CURSOR_BLINK))
999 		return;
1000 	if (!(++pxlblinkrate & 4))
1001 		return;
1002 	pxlblinkrate = 0;
1003 	scp->status ^= VR_CURSOR_ON;
1004 	draw_pxlcursor_direct(scp, at, scp->status & VR_CURSOR_ON, flip);
1005 }
1006 
1007 static void
1008 vga_pxlblink_planar(scr_stat *scp, int at, int flip)
1009 {
1010 	if (!(scp->status & VR_CURSOR_BLINK))
1011 		return;
1012 	if (!(++pxlblinkrate & 4))
1013 		return;
1014 	pxlblinkrate = 0;
1015 	scp->status ^= VR_CURSOR_ON;
1016 	draw_pxlcursor_planar(scp, at, scp->status & VR_CURSOR_ON, flip);
1017 }
1018 
1019 #ifndef SC_NO_CUTPASTE
1020 
1021 static void
1022 draw_pxlmouse_planar(scr_stat *scp, int x, int y)
1023 {
1024 	vm_offset_t p;
1025 	int line_width;
1026 	int xoff, yoff;
1027 	int ymax;
1028 	u_short m;
1029 	int i, j;
1030 
1031 	line_width = scp->sc->adp->va_line_width;
1032 	xoff = (x - scp->xoff*8)%8;
1033 	yoff = y - (y/line_width)*line_width;
1034 	ymax = imin(y + 16, scp->ypixel);
1035 
1036 	outw(GDCIDX, 0x0805);		/* read mode 1, write mode 0 */
1037 	outw(GDCIDX, 0x0001);		/* set/reset enable */
1038 	outw(GDCIDX, 0x0002);		/* color compare */
1039 	outw(GDCIDX, 0x0007);		/* color don't care */
1040 	outw(GDCIDX, 0xff08);		/* bit mask */
1041 	outw(GDCIDX, 0x0803);		/* data rotate/function select (and) */
1042 	p = scp->sc->adp->va_window + line_width*y + x/8;
1043 	if (x < scp->xpixel - 8) {
1044 		for (i = y, j = 0; i < ymax; ++i, ++j) {
1045 			m = ~(mouse_and_mask[j] >> xoff);
1046 #if defined(__i386__) || defined(__amd64__)
1047 			*(u_char *)p &= m >> 8;
1048 			*(u_char *)(p + 1) &= m;
1049 #else
1050 			writeb(p, readb(p) & (m >> 8));
1051 			writeb(p + 1, readb(p + 1) & (m >> 8));
1052 #endif
1053 			p += line_width;
1054 		}
1055 	} else {
1056 		xoff += 8;
1057 		for (i = y, j = 0; i < ymax; ++i, ++j) {
1058 			m = ~(mouse_and_mask[j] >> xoff);
1059 #if defined(__i386__) || defined(__amd64__)
1060 			*(u_char *)p &= m;
1061 #else
1062 			writeb(p, readb(p) & (m >> 8));
1063 #endif
1064 			p += line_width;
1065 		}
1066 	}
1067 	outw(GDCIDX, 0x1003);		/* data rotate/function select (or) */
1068 	p = scp->sc->adp->va_window + line_width*y + x/8;
1069 	if (x < scp->xpixel - 8) {
1070 		for (i = y, j = 0; i < ymax; ++i, ++j) {
1071 			m = mouse_or_mask[j] >> xoff;
1072 #if defined(__i386__) || defined(__amd64__)
1073 			*(u_char *)p &= m >> 8;
1074 			*(u_char *)(p + 1) &= m;
1075 #else
1076 			writeb(p, readb(p) & (m >> 8));
1077 			writeb(p + 1, readb(p + 1) & (m >> 8));
1078 #endif
1079 			p += line_width;
1080 		}
1081 	} else {
1082 		for (i = y, j = 0; i < ymax; ++i, ++j) {
1083 			m = mouse_or_mask[j] >> xoff;
1084 #if defined(__i386__) || defined(__amd64__)
1085 			*(u_char *)p &= m;
1086 #else
1087 			writeb(p, readb(p) & (m >> 8));
1088 #endif
1089 			p += line_width;
1090 		}
1091 	}
1092 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
1093 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
1094 }
1095 
1096 static void
1097 remove_pxlmouse_planar(scr_stat *scp, int x, int y)
1098 {
1099 	vm_offset_t p;
1100 	int col, row;
1101 	int pos;
1102 	int line_width;
1103 	int ymax;
1104 	int i;
1105 
1106 	/* erase the mouse cursor image */
1107 	col = x/8 - scp->xoff;
1108 	row = y/scp->font_size - scp->yoff;
1109 	pos = row*scp->xsize + col;
1110 	i = (col < scp->xsize - 1) ? 2 : 1;
1111 	(*scp->rndr->draw)(scp, pos, i, FALSE);
1112 	if (row < scp->ysize - 1)
1113 		(*scp->rndr->draw)(scp, pos + scp->xsize, i, FALSE);
1114 
1115 	/* paint border if necessary */
1116 	line_width = scp->sc->adp->va_line_width;
1117 	outw(GDCIDX, 0x0005);		/* read mode 0, write mode 0 */
1118 	outw(GDCIDX, 0x0003);		/* data rotate/function select */
1119 	outw(GDCIDX, 0x0f01);		/* set/reset enable */
1120 	outw(GDCIDX, 0xff08);		/* bit mask */
1121 	outw(GDCIDX, (scp->border << 8) | 0x00);	/* set/reset */
1122 	if (row == scp->ysize - 1) {
1123 		i = (scp->ysize + scp->yoff)*scp->font_size;
1124 		ymax = imin(i + scp->font_size, scp->ypixel);
1125 		p = scp->sc->adp->va_window + i*line_width + scp->xoff + col;
1126 		if (col < scp->xsize - 1) {
1127 			for (; i < ymax; ++i) {
1128 				writeb(p, 0);
1129 				writeb(p + 1, 0);
1130 				p += line_width;
1131 			}
1132 		} else {
1133 			for (; i < ymax; ++i) {
1134 				writeb(p, 0);
1135 				p += line_width;
1136 			}
1137 		}
1138 	}
1139 	if ((col == scp->xsize - 1) && (scp->xoff > 0)) {
1140 		i = (row + scp->yoff)*scp->font_size;
1141 		ymax = imin(i + scp->font_size*2, scp->ypixel);
1142 		p = scp->sc->adp->va_window + i*line_width
1143 			+ scp->xoff + scp->xsize;
1144 		for (; i < ymax; ++i) {
1145 			writeb(p, 0);
1146 			p += line_width;
1147 		}
1148 	}
1149 	outw(GDCIDX, 0x0000);		/* set/reset */
1150 	outw(GDCIDX, 0x0001);		/* set/reset enable */
1151 }
1152 
1153 static void
1154 vga_pxlmouse_direct(scr_stat *scp, int x, int y, int on)
1155 {
1156 	vm_offset_t p;
1157 	int line_width, pixel_size;
1158 	int xend, yend;
1159 	static int x_old = 0, xend_old = 0;
1160 	static int y_old = 0, yend_old = 0;
1161 	int i, j;
1162 	uint32_t *u32;
1163 	uint16_t *u16;
1164 	uint8_t  *u8;
1165 	int bpp;
1166 
1167 	if (!on)
1168 		return;
1169 
1170 	bpp = scp->sc->adp->va_info.vi_depth;
1171 
1172 	if ((bpp == 16) && (scp->sc->adp->va_info.vi_pixel_fsizes[1] == 5))
1173 		bpp = 15;
1174 
1175 	line_width = scp->sc->adp->va_line_width;
1176 	pixel_size = scp->sc->adp->va_info.vi_pixel_size;
1177 
1178 	xend = imin(x + 16, scp->xpixel);
1179 	yend = imin(y + 16, scp->ypixel);
1180 
1181 	p = scp->sc->adp->va_window + y_old * line_width + x_old * pixel_size;
1182 
1183 	for (i = 0; i < (yend_old - y_old); i++) {
1184 		for (j = (xend_old - x_old - 1); j >= 0; j--) {
1185 			switch (bpp) {
1186 			case 32:
1187 				u32 = (uint32_t*)(p + j * pixel_size);
1188 				writel(u32, mouse_buf32[i * 16 + j]);
1189 				break;
1190 			case 16:
1191 				/* FALLTHROUGH */
1192 			case 15:
1193 				u16 = (uint16_t*)(p + j * pixel_size);
1194 				writew(u16, mouse_buf16[i * 16 + j]);
1195 				break;
1196 			case 8:
1197 				u8 = (uint8_t*)(p + j * pixel_size);
1198 				writeb(u8, mouse_buf8[i * 16 + j]);
1199 				break;
1200 			}
1201 		}
1202 
1203 		p += line_width;
1204 	}
1205 
1206 	p = scp->sc->adp->va_window + y * line_width + x * pixel_size;
1207 
1208 	for (i = 0; i < (yend - y); i++) {
1209 		for (j = (xend - x - 1); j >= 0; j--) {
1210 			switch (bpp) {
1211 			case 32:
1212 				u32 = (uint32_t*)(p + j * pixel_size);
1213 				mouse_buf32[i * 16 + j] = *u32;
1214 				if (mouse_or_mask[i] & (1 << (15 - j)))
1215 					writel(u32, vga_palette32[15]);
1216 				else if (mouse_and_mask[i] & (1 << (15 - j)))
1217 					writel(u32, 0);
1218 				break;
1219 			case 16:
1220 				u16 = (uint16_t*)(p + j * pixel_size);
1221 				mouse_buf16[i * 16 + j] = *u16;
1222 				if (mouse_or_mask[i] & (1 << (15 - j)))
1223 					writew(u16, vga_palette16[15]);
1224 				else if (mouse_and_mask[i] & (1 << (15 - j)))
1225 					writew(u16, 0);
1226 				break;
1227 			case 15:
1228 				u16 = (uint16_t*)(p  + j * pixel_size);
1229 				mouse_buf16[i * 16 + j] = *u16;
1230 				if (mouse_or_mask[i] & (1 << (15 - j)))
1231 					writew(u16, vga_palette15[15]);
1232 				else if (mouse_and_mask[i] & (1 << (15 - j)))
1233 					writew(u16, 0);
1234 				break;
1235 			case 8:
1236 				u8 = (uint8_t*)(p + j * pixel_size);
1237 				mouse_buf8[i * 16 + j] = *u8;
1238 				if (mouse_or_mask[i] & (1 << (15 - j)))
1239 					writeb(u8, 15);
1240 				else if (mouse_and_mask[i] & (1 << (15 - j)))
1241 					writeb(u8, 0);
1242 				break;
1243 			}
1244 		}
1245 
1246 		p += line_width;
1247 	}
1248 
1249 	x_old = x;
1250 	y_old = y;
1251 	xend_old = xend;
1252 	yend_old = yend;
1253 }
1254 
1255 static void
1256 vga_pxlmouse_planar(scr_stat *scp, int x, int y, int on)
1257 {
1258 	if (on)
1259 		draw_pxlmouse_planar(scp, x, y);
1260 	else
1261 		remove_pxlmouse_planar(scp, x, y);
1262 }
1263 
1264 #endif /* SC_NO_CUTPASTE */
1265 #endif /* SC_PIXEL_MODE */
1266 
1267 #ifndef SC_NO_MODE_CHANGE
1268 
1269 /* graphics mode renderer */
1270 
1271 static void
1272 vga_grborder(scr_stat *scp, int color)
1273 {
1274 	vidd_set_border(scp->sc->adp, color);
1275 }
1276 
1277 #endif
1278