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