1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29static void
30teken_subr_cons25_set_border(const teken_t *t, unsigned int c)
31{
32
33	teken_funcs_param(t, TP_SETBORDER, c);
34}
35
36static void
37teken_subr_cons25_set_global_cursor_shape(const teken_t *t, unsigned int ncmds,
38    const unsigned int cmds[])
39{
40	unsigned int code, i;
41
42	/*
43	 * Pack the args to work around API deficiencies.  This requires
44	 * knowing too much about the low level to be fully compatible.
45	 * Returning when ncmds > 3 is necessary and happens to be
46	 * compatible.  Discarding high bits is necessary and happens to
47	 * be incompatible only for invalid args when ncmds == 3.
48	 */
49	if (ncmds > 3)
50		return;
51	code = 0;
52	for (i = ncmds; i > 0; i--)
53		code = (code << 8) | (cmds[i - 1] & 0xff);
54	code = (code << 8) | ncmds;
55	teken_funcs_param(t, TP_SETGLOBALCURSOR, code);
56}
57
58static void
59teken_subr_cons25_set_local_cursor_type(const teken_t *t, unsigned int type)
60{
61
62	teken_funcs_param(t, TP_SETLOCALCURSOR, type);
63}
64
65static const teken_color_t cons25_colors[8] = { TC_BLACK, TC_BLUE,
66    TC_GREEN, TC_CYAN, TC_RED, TC_MAGENTA, TC_YELLOW, TC_WHITE };
67
68static void
69teken_subr_cons25_set_default_background(teken_t *t, unsigned int c)
70{
71
72	t->t_defattr.ta_bgcolor = cons25_colors[c % 8] | (c & 8);
73	t->t_curattr.ta_bgcolor = cons25_colors[c % 8] | (c & 8);
74}
75
76static void
77teken_subr_cons25_set_default_foreground(teken_t *t, unsigned int c)
78{
79
80	t->t_defattr.ta_fgcolor = cons25_colors[c % 8] | (c & 8);
81	t->t_curattr.ta_fgcolor = cons25_colors[c % 8] | (c & 8);
82}
83
84static const teken_color_t cons25_revcolors[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
85
86void
87teken_get_defattr_cons25(const teken_t *t, int *fg, int *bg)
88{
89
90	*fg = cons25_revcolors[teken_256to8(t->t_defattr.ta_fgcolor)];
91	if (t->t_defattr.ta_format & TF_BOLD)
92		*fg += 8;
93	*bg = cons25_revcolors[teken_256to8(t->t_defattr.ta_bgcolor)];
94}
95
96static void
97teken_subr_cons25_switch_virtual_terminal(const teken_t *t, unsigned int vt)
98{
99
100	teken_funcs_param(t, TP_SWITCHVT, vt);
101}
102
103static void
104teken_subr_cons25_set_bell_pitch_duration(const teken_t *t, unsigned int pitch,
105    unsigned int duration)
106{
107
108	teken_funcs_param(t, TP_SETBELLPD, (pitch << 16) |
109	    (duration & 0xffff));
110}
111
112static void
113teken_subr_cons25_set_graphic_rendition(teken_t *t, unsigned int cmd,
114    unsigned int param)
115{
116
117	(void)param;
118	switch (cmd) {
119	case 0: /* Reset. */
120		t->t_curattr = t->t_defattr;
121		break;
122	default:
123		teken_printf("unsupported attribute %u\n", cmd);
124	}
125}
126
127static void
128teken_subr_cons25_set_terminal_mode(teken_t *t, unsigned int mode)
129{
130
131	switch (mode) {
132	case 0:	/* Switch terminal to xterm. */
133		t->t_stateflags &= ~TS_CONS25;
134		break;
135	case 1: /* Switch terminal to cons25. */
136		t->t_stateflags |= TS_CONS25;
137		break;
138	default:
139		break;
140	}
141}
142
143#if 0
144static void
145teken_subr_vt52_decid(teken_t *t)
146{
147	const char response[] = "\x1B/Z";
148
149	teken_funcs_respond(t, response, sizeof response - 1);
150}
151#endif
152