scterm-teken.c revision 199243 
1/*-
2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3 * All rights reserved.
4 *
5 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
6 * All rights reserved.
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#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: head/sys/dev/syscons/scterm-teken.c 199243 2009-11-13 05:54:55Z ed $");
32
33#include "opt_syscons.h"
34#include "opt_teken.h"
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/kernel.h>
39#include <sys/module.h>
40#include <sys/consio.h>
41#include <sys/kbio.h>
42
43#if defined(__sparc64__) || defined(__powerpc__)
44#include <machine/sc_machdep.h>
45#else
46#include <machine/pc/display.h>
47#endif
48
49#include <dev/syscons/syscons.h>
50
51#include <teken/teken.h>
52
53#if defined(TEKEN_XTERM) && defined(TEKEN_CONS25)
54#error "xterm and cons25 are mutually exclusive."
55#endif
56
57/* XXX: Use cons25 on i386, for compatibility with pc98. */
58#if defined(__i386__) && !defined(TEKEN_XTERM) && !defined(TEKEN_CONS25)
59#define	TEKEN_CONS25
60#endif
61
62static void scteken_revattr(unsigned char, teken_attr_t *);
63static unsigned int scteken_attr(const teken_attr_t *);
64
65static sc_term_init_t		scteken_init;
66static sc_term_term_t		scteken_term;
67static sc_term_puts_t		scteken_puts;
68static sc_term_ioctl_t		scteken_ioctl;
69static sc_term_default_attr_t	scteken_default_attr;
70static sc_term_clear_t		scteken_clear;
71static sc_term_input_t		scteken_input;
72static sc_term_fkeystr_t	scteken_fkeystr;
73static void			scteken_nop(void);
74
75typedef struct {
76	teken_t		ts_teken;
77	int		ts_busy;
78} teken_stat;
79
80static teken_stat	reserved_teken_stat;
81
82static sc_term_sw_t sc_term_scteken = {
83	{ NULL, NULL },
84	"scteken",			/* emulator name */
85	"teken terminal",		/* description */
86	"*",				/* matching renderer */
87	sizeof(teken_stat),		/* softc size */
88	0,
89	scteken_init,
90	scteken_term,
91	scteken_puts,
92	scteken_ioctl,
93	(sc_term_reset_t *)scteken_nop,
94	scteken_default_attr,
95	scteken_clear,
96	(sc_term_notify_t *)scteken_nop,
97	scteken_input,
98	scteken_fkeystr,
99};
100
101SCTERM_MODULE(scteken, sc_term_scteken);
102
103static tf_bell_t	scteken_bell;
104static tf_cursor_t	scteken_cursor;
105static tf_putchar_t	scteken_putchar;
106static tf_fill_t	scteken_fill;
107static tf_copy_t	scteken_copy;
108static tf_param_t	scteken_param;
109static tf_respond_t	scteken_respond;
110
111static const teken_funcs_t scteken_funcs = {
112	.tf_bell	= scteken_bell,
113	.tf_cursor	= scteken_cursor,
114	.tf_putchar	= scteken_putchar,
115	.tf_fill	= scteken_fill,
116	.tf_copy	= scteken_copy,
117	.tf_param	= scteken_param,
118	.tf_respond	= scteken_respond,
119};
120
121static int
122scteken_init(scr_stat *scp, void **softc, int code)
123{
124	teken_stat *ts;
125	teken_pos_t tp;
126
127	if (*softc == NULL) {
128		if (reserved_teken_stat.ts_busy)
129			return (EINVAL);
130		*softc = &reserved_teken_stat;
131	}
132	ts = *softc;
133
134	switch (code) {
135	case SC_TE_COLD_INIT:
136		++sc_term_scteken.te_refcount;
137		ts->ts_busy = 1;
138		/* FALLTHROUGH */
139	case SC_TE_WARM_INIT:
140		teken_init(&ts->ts_teken, &scteken_funcs, scp);
141#ifndef TEKEN_UTF8
142		teken_set_8bit(&ts->ts_teken);
143#endif /* !TEKEN_UTF8 */
144#ifdef TEKEN_CONS25
145		teken_set_cons25(&ts->ts_teken);
146#endif /* TEKEN_CONS25 */
147
148		tp.tp_row = scp->ysize;
149		tp.tp_col = scp->xsize;
150		teken_set_winsize(&ts->ts_teken, &tp);
151
152		if (scp->cursor_pos < scp->ysize * scp->xsize) {
153			/* Valid old cursor position. */
154			tp.tp_row = scp->cursor_pos / scp->xsize;
155			tp.tp_col = scp->cursor_pos % scp->xsize;
156			teken_set_cursor(&ts->ts_teken, &tp);
157		}
158		break;
159	}
160
161	return (0);
162}
163
164static int
165scteken_term(scr_stat *scp, void **softc)
166{
167
168	if (*softc == &reserved_teken_stat) {
169		*softc = NULL;
170		reserved_teken_stat.ts_busy = 0;
171	}
172	--sc_term_scteken.te_refcount;
173
174	return (0);
175}
176
177static void
178scteken_puts(scr_stat *scp, u_char *buf, int len, int kernel)
179{
180	teken_stat *ts = scp->ts;
181	teken_attr_t backup, kattr;
182
183	scp->sc->write_in_progress++;
184	if (kernel) {
185		/* Use special colors for kernel messages. */
186		backup = *teken_get_curattr(&ts->ts_teken);
187		scteken_revattr(SC_KERNEL_CONS_ATTR, &kattr);
188		teken_set_curattr(&ts->ts_teken, &kattr);
189		teken_input(&ts->ts_teken, buf, len);
190		teken_set_curattr(&ts->ts_teken, &backup);
191	} else {
192		/* Print user messages with regular colors. */
193		teken_input(&ts->ts_teken, buf, len);
194	}
195	scp->sc->write_in_progress--;
196}
197
198static int
199scteken_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
200	     struct thread *td)
201{
202	teken_stat *ts = scp->ts;
203	vid_info_t *vi;
204	unsigned int attr;
205
206	switch (cmd) {
207	case GIO_ATTR:      	/* get current attributes */
208		*(int*)data =
209		    scteken_attr(teken_get_curattr(&ts->ts_teken));
210		return (0);
211	case CONS_GETINFO:  	/* get current (virtual) console info */
212		vi = (vid_info_t *)data;
213		if (vi->size != sizeof(struct vid_info))
214			return EINVAL;
215
216		attr = scteken_attr(teken_get_defattr(&ts->ts_teken));
217		vi->mv_norm.fore = attr & 0x0f;
218		vi->mv_norm.back = (attr >> 4) & 0x0f;
219		vi->mv_rev.fore = vi->mv_norm.back;
220		vi->mv_rev.back = vi->mv_norm.fore;
221		/*
222		 * The other fields are filled by the upper routine. XXX
223		 */
224		return (ENOIOCTL);
225	}
226
227	return (ENOIOCTL);
228}
229
230static void
231scteken_default_attr(scr_stat *scp, int color, int rev_color)
232{
233	teken_stat *ts = scp->ts;
234	teken_attr_t ta;
235
236	scteken_revattr(color, &ta);
237	teken_set_defattr(&ts->ts_teken, &ta);
238}
239
240static void
241scteken_clear(scr_stat *scp)
242{
243
244	sc_move_cursor(scp, 0, 0);
245	sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8);
246	mark_all(scp);
247}
248
249static int
250scteken_input(scr_stat *scp, int c, struct tty *tp)
251{
252
253	return FALSE;
254}
255
256static const char *
257scteken_fkeystr(scr_stat *scp, int c)
258{
259	teken_stat *ts = scp->ts;
260	unsigned int k;
261
262	switch (c) {
263	case FKEY | F(1):  case FKEY | F(2):  case FKEY | F(3):
264	case FKEY | F(4):  case FKEY | F(5):  case FKEY | F(6):
265	case FKEY | F(7):  case FKEY | F(8):  case FKEY | F(9):
266	case FKEY | F(10): case FKEY | F(11): case FKEY | F(12):
267		k = TKEY_F1 + c - (FKEY | F(1));
268		break;
269	case FKEY | F(49):
270		k = TKEY_HOME;
271		break;
272	case FKEY | F(50):
273		k = TKEY_UP;
274		break;
275	case FKEY | F(51):
276		k = TKEY_PAGE_UP;
277		break;
278	case FKEY | F(53):
279		k = TKEY_LEFT;
280		break;
281	case FKEY | F(55):
282		k = TKEY_RIGHT;
283		break;
284	case FKEY | F(57):
285		k = TKEY_END;
286		break;
287	case FKEY | F(58):
288		k = TKEY_DOWN;
289		break;
290	case FKEY | F(59):
291		k = TKEY_PAGE_DOWN;
292		break;
293	case FKEY | F(60):
294		k = TKEY_INSERT;
295		break;
296	case FKEY | F(61):
297		k = TKEY_DELETE;
298		break;
299	default:
300		return (NULL);
301	}
302
303	return (teken_get_sequence(&ts->ts_teken, k));
304}
305
306static void
307scteken_nop(void)
308{
309
310}
311
312/*
313 * libteken routines.
314 */
315
316static const unsigned char fgcolors_normal[TC_NCOLORS] = {
317	FG_BLACK,     FG_RED,          FG_GREEN,      FG_BROWN,
318	FG_BLUE,      FG_MAGENTA,      FG_CYAN,       FG_LIGHTGREY,
319};
320
321static const unsigned char fgcolors_bold[TC_NCOLORS] = {
322	FG_DARKGREY,  FG_LIGHTRED,     FG_LIGHTGREEN, FG_YELLOW,
323	FG_LIGHTBLUE, FG_LIGHTMAGENTA, FG_LIGHTCYAN,  FG_WHITE,
324};
325
326static const unsigned char bgcolors[TC_NCOLORS] = {
327	BG_BLACK,     BG_RED,          BG_GREEN,      BG_BROWN,
328	BG_BLUE,      BG_MAGENTA,      BG_CYAN,       BG_LIGHTGREY,
329};
330
331static void
332scteken_revattr(unsigned char color, teken_attr_t *a)
333{
334	teken_color_t fg, bg;
335
336	/*
337	 * XXX: Reverse conversion of syscons to teken attributes. Not
338	 * realiable. Maybe we should turn it into a 1:1 mapping one of
339	 * these days?
340	 */
341
342	a->ta_format = 0;
343	a->ta_fgcolor = TC_WHITE;
344	a->ta_bgcolor = TC_BLACK;
345
346#ifdef FG_BLINK
347	if (color & FG_BLINK) {
348		a->ta_format |= TF_BLINK;
349		color &= ~FG_BLINK;
350	}
351#endif /* FG_BLINK */
352
353	for (fg = 0; fg < TC_NCOLORS; fg++) {
354		for (bg = 0; bg < TC_NCOLORS; bg++) {
355			if ((fgcolors_normal[fg] | bgcolors[bg]) == color) {
356				a->ta_fgcolor = fg;
357				a->ta_bgcolor = bg;
358				return;
359			}
360
361			if ((fgcolors_bold[fg] | bgcolors[bg]) == color) {
362				a->ta_fgcolor = fg;
363				a->ta_bgcolor = bg;
364				a->ta_format |= TF_BOLD;
365				return;
366			}
367		}
368	}
369}
370
371static unsigned int
372scteken_attr(const teken_attr_t *a)
373{
374	unsigned int attr = 0;
375	teken_color_t fg, bg;
376
377	if (a->ta_format & TF_REVERSE) {
378		fg = teken_256to8(a->ta_bgcolor);
379		bg = teken_256to8(a->ta_fgcolor);
380	} else {
381		fg = teken_256to8(a->ta_fgcolor);
382		bg = teken_256to8(a->ta_bgcolor);
383	}
384	if (a->ta_format & TF_BOLD)
385		attr |= fgcolors_bold[fg];
386	else
387		attr |= fgcolors_normal[fg];
388	attr |= bgcolors[bg];
389
390#ifdef FG_UNDERLINE
391	if (a->ta_format & TF_UNDERLINE)
392		attr |= FG_UNDERLINE;
393#endif /* FG_UNDERLINE */
394#ifdef FG_BLINK
395	if (a->ta_format & TF_BLINK)
396		attr |= FG_BLINK;
397#endif /* FG_BLINK */
398
399	return (attr);
400}
401
402static void
403scteken_bell(void *arg)
404{
405	scr_stat *scp = arg;
406
407	sc_bell(scp, scp->bell_pitch, scp->bell_duration);
408}
409
410static void
411scteken_cursor(void *arg, const teken_pos_t *p)
412{
413	scr_stat *scp = arg;
414
415	sc_move_cursor(scp, p->tp_col, p->tp_row);
416}
417
418#ifdef TEKEN_UTF8
419struct unicp437 {
420	uint16_t	unicode_base;
421	uint8_t		cp437_base;
422	uint8_t		length;
423};
424
425static const struct unicp437 cp437table[] = {
426	{ 0x0020, 0x20, 0x5e }, { 0x00a0, 0x20, 0x00 },
427	{ 0x00a1, 0xad, 0x00 }, { 0x00a2, 0x9b, 0x00 },
428	{ 0x00a3, 0x9c, 0x00 }, { 0x00a5, 0x9d, 0x00 },
429	{ 0x00a7, 0x15, 0x00 }, { 0x00aa, 0xa6, 0x00 },
430	{ 0x00ab, 0xae, 0x00 }, { 0x00ac, 0xaa, 0x00 },
431	{ 0x00b0, 0xf8, 0x00 }, { 0x00b1, 0xf1, 0x00 },
432	{ 0x00b2, 0xfd, 0x00 }, { 0x00b5, 0xe6, 0x00 },
433	{ 0x00b6, 0x14, 0x00 }, { 0x00b7, 0xfa, 0x00 },
434	{ 0x00ba, 0xa7, 0x00 }, { 0x00bb, 0xaf, 0x00 },
435	{ 0x00bc, 0xac, 0x00 }, { 0x00bd, 0xab, 0x00 },
436	{ 0x00bf, 0xa8, 0x00 }, { 0x00c4, 0x8e, 0x01 },
437	{ 0x00c6, 0x92, 0x00 }, { 0x00c7, 0x80, 0x00 },
438	{ 0x00c9, 0x90, 0x00 }, { 0x00d1, 0xa5, 0x00 },
439	{ 0x00d6, 0x99, 0x00 }, { 0x00dc, 0x9a, 0x00 },
440	{ 0x00df, 0xe1, 0x00 }, { 0x00e0, 0x85, 0x00 },
441	{ 0x00e1, 0xa0, 0x00 }, { 0x00e2, 0x83, 0x00 },
442	{ 0x00e4, 0x84, 0x00 }, { 0x00e5, 0x86, 0x00 },
443	{ 0x00e6, 0x91, 0x00 }, { 0x00e7, 0x87, 0x00 },
444	{ 0x00e8, 0x8a, 0x00 }, { 0x00e9, 0x82, 0x00 },
445	{ 0x00ea, 0x88, 0x01 }, { 0x00ec, 0x8d, 0x00 },
446	{ 0x00ed, 0xa1, 0x00 }, { 0x00ee, 0x8c, 0x00 },
447	{ 0x00ef, 0x8b, 0x00 }, { 0x00f0, 0xeb, 0x00 },
448	{ 0x00f1, 0xa4, 0x00 }, { 0x00f2, 0x95, 0x00 },
449	{ 0x00f3, 0xa2, 0x00 }, { 0x00f4, 0x93, 0x00 },
450	{ 0x00f6, 0x94, 0x00 }, { 0x00f7, 0xf6, 0x00 },
451	{ 0x00f8, 0xed, 0x00 }, { 0x00f9, 0x97, 0x00 },
452	{ 0x00fa, 0xa3, 0x00 }, { 0x00fb, 0x96, 0x00 },
453	{ 0x00fc, 0x81, 0x00 }, { 0x00ff, 0x98, 0x00 },
454	{ 0x0192, 0x9f, 0x00 }, { 0x0393, 0xe2, 0x00 },
455	{ 0x0398, 0xe9, 0x00 }, { 0x03a3, 0xe4, 0x00 },
456	{ 0x03a6, 0xe8, 0x00 }, { 0x03a9, 0xea, 0x00 },
457	{ 0x03b1, 0xe0, 0x01 }, { 0x03b4, 0xeb, 0x00 },
458	{ 0x03b5, 0xee, 0x00 }, { 0x03bc, 0xe6, 0x00 },
459	{ 0x03c0, 0xe3, 0x00 }, { 0x03c3, 0xe5, 0x00 },
460	{ 0x03c4, 0xe7, 0x00 }, { 0x03c6, 0xed, 0x00 },
461	{ 0x03d5, 0xed, 0x00 }, { 0x2010, 0x2d, 0x00 },
462	{ 0x2014, 0x2d, 0x00 }, { 0x2018, 0x60, 0x00 },
463	{ 0x2019, 0x27, 0x00 }, { 0x201c, 0x22, 0x00 },
464	{ 0x201d, 0x22, 0x00 }, { 0x2022, 0x07, 0x00 },
465	{ 0x203c, 0x13, 0x00 }, { 0x207f, 0xfc, 0x00 },
466	{ 0x20a7, 0x9e, 0x00 }, { 0x20ac, 0xee, 0x00 },
467	{ 0x2126, 0xea, 0x00 }, { 0x2190, 0x1b, 0x00 },
468	{ 0x2191, 0x18, 0x00 }, { 0x2192, 0x1a, 0x00 },
469	{ 0x2193, 0x19, 0x00 }, { 0x2194, 0x1d, 0x00 },
470	{ 0x2195, 0x12, 0x00 }, { 0x21a8, 0x17, 0x00 },
471	{ 0x2202, 0xeb, 0x00 }, { 0x2208, 0xee, 0x00 },
472	{ 0x2211, 0xe4, 0x00 }, { 0x2212, 0x2d, 0x00 },
473	{ 0x2219, 0xf9, 0x00 }, { 0x221a, 0xfb, 0x00 },
474	{ 0x221e, 0xec, 0x00 }, { 0x221f, 0x1c, 0x00 },
475	{ 0x2229, 0xef, 0x00 }, { 0x2248, 0xf7, 0x00 },
476	{ 0x2261, 0xf0, 0x00 }, { 0x2264, 0xf3, 0x00 },
477	{ 0x2265, 0xf2, 0x00 }, { 0x2302, 0x7f, 0x00 },
478	{ 0x2310, 0xa9, 0x00 }, { 0x2320, 0xf4, 0x00 },
479	{ 0x2321, 0xf5, 0x00 }, { 0x2500, 0xc4, 0x00 },
480	{ 0x2502, 0xb3, 0x00 }, { 0x250c, 0xda, 0x00 },
481	{ 0x2510, 0xbf, 0x00 }, { 0x2514, 0xc0, 0x00 },
482	{ 0x2518, 0xd9, 0x00 }, { 0x251c, 0xc3, 0x00 },
483	{ 0x2524, 0xb4, 0x00 }, { 0x252c, 0xc2, 0x00 },
484	{ 0x2534, 0xc1, 0x00 }, { 0x253c, 0xc5, 0x00 },
485	{ 0x2550, 0xcd, 0x00 }, { 0x2551, 0xba, 0x00 },
486	{ 0x2552, 0xd5, 0x00 }, { 0x2553, 0xd6, 0x00 },
487	{ 0x2554, 0xc9, 0x00 }, { 0x2555, 0xb8, 0x00 },
488	{ 0x2556, 0xb7, 0x00 }, { 0x2557, 0xbb, 0x00 },
489	{ 0x2558, 0xd4, 0x00 }, { 0x2559, 0xd3, 0x00 },
490	{ 0x255a, 0xc8, 0x00 }, { 0x255b, 0xbe, 0x00 },
491	{ 0x255c, 0xbd, 0x00 }, { 0x255d, 0xbc, 0x00 },
492	{ 0x255e, 0xc6, 0x01 }, { 0x2560, 0xcc, 0x00 },
493	{ 0x2561, 0xb5, 0x00 }, { 0x2562, 0xb6, 0x00 },
494	{ 0x2563, 0xb9, 0x00 }, { 0x2564, 0xd1, 0x01 },
495	{ 0x2566, 0xcb, 0x00 }, { 0x2567, 0xcf, 0x00 },
496	{ 0x2568, 0xd0, 0x00 }, { 0x2569, 0xca, 0x00 },
497	{ 0x256a, 0xd8, 0x00 }, { 0x256b, 0xd7, 0x00 },
498	{ 0x256c, 0xce, 0x00 }, { 0x2580, 0xdf, 0x00 },
499	{ 0x2584, 0xdc, 0x00 }, { 0x2588, 0xdb, 0x00 },
500	{ 0x258c, 0xdd, 0x00 }, { 0x2590, 0xde, 0x00 },
501	{ 0x2591, 0xb0, 0x02 }, { 0x25a0, 0xfe, 0x00 },
502	{ 0x25ac, 0x16, 0x00 }, { 0x25b2, 0x1e, 0x00 },
503	{ 0x25ba, 0x10, 0x00 }, { 0x25bc, 0x1f, 0x00 },
504	{ 0x25c4, 0x11, 0x00 }, { 0x25cb, 0x09, 0x00 },
505	{ 0x25d8, 0x08, 0x00 }, { 0x25d9, 0x0a, 0x00 },
506	{ 0x263a, 0x01, 0x01 }, { 0x263c, 0x0f, 0x00 },
507	{ 0x2640, 0x0c, 0x00 }, { 0x2642, 0x0b, 0x00 },
508	{ 0x2660, 0x06, 0x00 }, { 0x2663, 0x05, 0x00 },
509	{ 0x2665, 0x03, 0x01 }, { 0x266a, 0x0d, 0x01 },
510};
511
512static void
513scteken_get_cp437(teken_char_t *c, int *attr)
514{
515	int min, mid, max;
516
517	min = 0;
518	max = (sizeof(cp437table) / sizeof(struct unicp437)) - 1;
519
520	if (*c < cp437table[0].unicode_base ||
521	    *c > cp437table[max].unicode_base + cp437table[max].length)
522		goto bad;
523
524	while (max >= min) {
525		mid = (min + max) / 2;
526		if (*c < cp437table[mid].unicode_base) {
527			max = mid - 1;
528		} else if (*c > cp437table[mid].unicode_base +
529		    cp437table[mid].length) {
530			min = mid + 1;
531		} else {
532			*c -= cp437table[mid].unicode_base;
533			*c += cp437table[mid].cp437_base;
534			return;
535		}
536	}
537bad:
538	/* Character not present in CP437. */
539	*attr = (FG_RED|BG_BLACK) << 8;
540	*c = '?';
541}
542#endif /* TEKEN_UTF8 */
543
544static void
545scteken_putchar(void *arg, const teken_pos_t *tp, teken_char_t c,
546    const teken_attr_t *a)
547{
548	scr_stat *scp = arg;
549	u_char *map;
550	u_char ch;
551	vm_offset_t p;
552	int cursor, attr;
553
554	attr = scteken_attr(a) << 8;
555#ifdef TEKEN_UTF8
556	scteken_get_cp437(&c, &attr);
557#endif /* TEKEN_UTF8 */
558	ch = c;
559
560	map = scp->sc->scr_map;
561
562	cursor = tp->tp_row * scp->xsize + tp->tp_col;
563	p = sc_vtb_pointer(&scp->vtb, cursor);
564	sc_vtb_putchar(&scp->vtb, p, map[ch], attr);
565
566	mark_for_update(scp, cursor);
567	/*
568	 * XXX: Why do we need this? Only marking `cursor' should be
569	 * enough. Without this line, we get artifacts.
570	 */
571	mark_for_update(scp, imin(cursor + 1, scp->xsize * scp->ysize - 1));
572}
573
574static void
575scteken_fill(void *arg, const teken_rect_t *r, teken_char_t c,
576    const teken_attr_t *a)
577{
578	scr_stat *scp = arg;
579	u_char *map;
580	u_char ch;
581	unsigned int width;
582	int attr, row;
583
584	attr = scteken_attr(a) << 8;
585#ifdef TEKEN_UTF8
586	scteken_get_cp437(&c, &attr);
587#endif /* TEKEN_UTF8 */
588	ch = c;
589
590	map = scp->sc->scr_map;
591
592	if (r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize) {
593		/* Single contiguous region to fill. */
594		sc_vtb_erase(&scp->vtb, r->tr_begin.tp_row * scp->xsize,
595		    (r->tr_end.tp_row - r->tr_begin.tp_row) * scp->xsize,
596		    map[ch], attr);
597	} else {
598		/* Fill display line by line. */
599		width = r->tr_end.tp_col - r->tr_begin.tp_col;
600
601		for (row = r->tr_begin.tp_row; row < r->tr_end.tp_row; row++) {
602			sc_vtb_erase(&scp->vtb, r->tr_begin.tp_row *
603			    scp->xsize + r->tr_begin.tp_col,
604			    width, map[ch], attr);
605		}
606	}
607
608	/* Mark begin and end positions to be refreshed. */
609	mark_for_update(scp,
610	    r->tr_begin.tp_row * scp->xsize + r->tr_begin.tp_col);
611	mark_for_update(scp,
612	    (r->tr_end.tp_row - 1) * scp->xsize + (r->tr_end.tp_col - 1));
613	sc_remove_cutmarking(scp);
614}
615
616static void
617scteken_copy(void *arg, const teken_rect_t *r, const teken_pos_t *p)
618{
619	scr_stat *scp = arg;
620	unsigned int width;
621	int src, dst, end;
622
623#ifndef SC_NO_HISTORY
624	/*
625	 * We count a line of input as history if we perform a copy of
626	 * one whole line upward. In other words: if a line of text gets
627	 * overwritten by a rectangle that's right below it.
628	 */
629	if (scp->history != NULL &&
630	    r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize &&
631	    r->tr_begin.tp_row == p->tp_row + 1) {
632		sc_hist_save_one_line(scp, p->tp_row);
633	}
634#endif
635
636	if (r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize) {
637		/* Single contiguous region to copy. */
638		sc_vtb_move(&scp->vtb, r->tr_begin.tp_row * scp->xsize,
639		    p->tp_row * scp->xsize,
640		    (r->tr_end.tp_row - r->tr_begin.tp_row) * scp->xsize);
641	} else {
642		/* Copy line by line. */
643		width = r->tr_end.tp_col - r->tr_begin.tp_col;
644
645		if (p->tp_row < r->tr_begin.tp_row) {
646			/* Copy from top to bottom. */
647			src = r->tr_begin.tp_row * scp->xsize +
648			    r->tr_begin.tp_col;
649			end = r->tr_end.tp_row * scp->xsize +
650			    r->tr_end.tp_col;
651			dst = p->tp_row * scp->xsize + p->tp_col;
652
653			while (src < end) {
654				sc_vtb_move(&scp->vtb, src, dst, width);
655
656				src += scp->xsize;
657				dst += scp->xsize;
658			}
659		} else {
660			/* Copy from bottom to top. */
661			src = (r->tr_end.tp_row - 1) * scp->xsize +
662			    r->tr_begin.tp_col;
663			end = r->tr_begin.tp_row * scp->xsize +
664			    r->tr_begin.tp_col;
665			dst = (p->tp_row + r->tr_end.tp_row -
666			    r->tr_begin.tp_row - 1) * scp->xsize + p->tp_col;
667
668			while (src >= end) {
669				sc_vtb_move(&scp->vtb, src, dst, width);
670
671				src -= scp->xsize;
672				dst -= scp->xsize;
673			}
674		}
675	}
676
677	/* Mark begin and end positions to be refreshed. */
678	mark_for_update(scp,
679	    p->tp_row * scp->xsize + p->tp_col);
680	mark_for_update(scp,
681	    (p->tp_row + r->tr_end.tp_row - r->tr_begin.tp_row - 1) *
682	    scp->xsize +
683	    (p->tp_col + r->tr_end.tp_col - r->tr_begin.tp_col - 1));
684	sc_remove_cutmarking(scp);
685}
686
687static void
688scteken_param(void *arg, int cmd, unsigned int value)
689{
690	scr_stat *scp = arg;
691
692	switch (cmd) {
693	case TP_SHOWCURSOR:
694		if (value) {
695			sc_change_cursor_shape(scp,
696			    CONS_RESET_CURSOR|CONS_LOCAL_CURSOR, -1, -1);
697		} else {
698			sc_change_cursor_shape(scp,
699			    CONS_HIDDEN_CURSOR|CONS_LOCAL_CURSOR, -1, -1);
700		}
701		break;
702	case TP_SWITCHVT:
703		sc_switch_scr(scp->sc, value);
704		break;
705	case TP_SETBELLPD:
706		scp->bell_pitch = TP_SETBELLPD_PITCH(value);
707		scp->bell_duration = TP_SETBELLPD_DURATION(value);
708		break;
709	case TP_MOUSE:
710		scp->mouse_level = value;
711		break;
712	}
713}
714
715static void
716scteken_respond(void *arg, const void *buf, size_t len)
717{
718	scr_stat *scp = arg;
719
720	sc_respond(scp, buf, len, 0);
721}
722