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e42fc36867
freebsd-skq/sys/dev/syscons/scterm-teken.c
Ed Schouten e42fc36867 Switch the default terminal emulation style to xterm for most platforms. 
Right now syscons(4) uses a cons25-style terminal emulator. The
disadvantages of that are:

- Little compatibility with embedded devices with serial interfaces.
- Bad bandwidth efficiency, mainly because of the lack of scrolling
  regions.
- A very hard transition path to support for modern character sets like
  UTF-8.

Our terminal emulation library, libteken, has been supporting
xterm-style terminal emulation for months, so flip the switch and make
everyone use an xterm-style console driver.

I still have to enable this on i386. Right now pc98 and i386 share the
same /etc/ttys file. I'm not going to switch pc98, because it uses its
own Kanji-capable cons25 emulator.

IMPORTANT: What to do if things go wrong (i.e. graphical artifacts):

- Run the application inside script(1), try to reduce the problem and
  send me the log file.
- In the mean time, you can run `vidcontrol -T cons25' and `export
  TERM=cons25' so you can run applications the same way you did before.
  You can also build your kernel with `options TEKEN_CONS25' to make all
  virtual terminals use the cons25 emulator by default.

Discussed on:	current@
2009-11-13 05:54:55 +00:00

722 lines
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/*-
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* All rights reserved.
*
* Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer as
* the first lines of this file unmodified.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_syscons.h"
#include "opt_teken.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/consio.h>
#include <sys/kbio.h>
#if defined(__sparc64__) || defined(__powerpc__)
#include <machine/sc_machdep.h>
#else
#include <machine/pc/display.h>
#endif
#include <dev/syscons/syscons.h>
#include <teken/teken.h>
#if defined(TEKEN_XTERM) && defined(TEKEN_CONS25)
#error "xterm and cons25 are mutually exclusive."
#endif
/* XXX: Use cons25 on i386, for compatibility with pc98. */
#if defined(__i386__) && !defined(TEKEN_XTERM) && !defined(TEKEN_CONS25)
#define TEKEN_CONS25
#endif
static void scteken_revattr(unsigned char, teken_attr_t *);
static unsigned int scteken_attr(const teken_attr_t *);
static sc_term_init_t scteken_init;
static sc_term_term_t scteken_term;
static sc_term_puts_t scteken_puts;
static sc_term_ioctl_t scteken_ioctl;
static sc_term_default_attr_t scteken_default_attr;
static sc_term_clear_t scteken_clear;
static sc_term_input_t scteken_input;
static sc_term_fkeystr_t scteken_fkeystr;
static void scteken_nop(void);
typedef struct {
teken_t ts_teken;
int ts_busy;
} teken_stat;
static teken_stat reserved_teken_stat;
static sc_term_sw_t sc_term_scteken = {
{ NULL, NULL },
"scteken", /* emulator name */
"teken terminal", /* description */
"*", /* matching renderer */
sizeof(teken_stat), /* softc size */
0,
scteken_init,
scteken_term,
scteken_puts,
scteken_ioctl,
(sc_term_reset_t *)scteken_nop,
scteken_default_attr,
scteken_clear,
(sc_term_notify_t *)scteken_nop,
scteken_input,
scteken_fkeystr,
};
SCTERM_MODULE(scteken, sc_term_scteken);
static tf_bell_t scteken_bell;
static tf_cursor_t scteken_cursor;
static tf_putchar_t scteken_putchar;
static tf_fill_t scteken_fill;
static tf_copy_t scteken_copy;
static tf_param_t scteken_param;
static tf_respond_t scteken_respond;
static const teken_funcs_t scteken_funcs = {
.tf_bell = scteken_bell,
.tf_cursor = scteken_cursor,
.tf_putchar = scteken_putchar,
.tf_fill = scteken_fill,
.tf_copy = scteken_copy,
.tf_param = scteken_param,
.tf_respond = scteken_respond,
};
static int
scteken_init(scr_stat *scp, void **softc, int code)
{
teken_stat *ts;
teken_pos_t tp;
if (*softc == NULL) {
if (reserved_teken_stat.ts_busy)
return (EINVAL);
*softc = &reserved_teken_stat;
}
ts = *softc;
switch (code) {
case SC_TE_COLD_INIT:
++sc_term_scteken.te_refcount;
ts->ts_busy = 1;
/* FALLTHROUGH */
case SC_TE_WARM_INIT:
teken_init(&ts->ts_teken, &scteken_funcs, scp);
#ifndef TEKEN_UTF8
teken_set_8bit(&ts->ts_teken);
#endif /* !TEKEN_UTF8 */
#ifdef TEKEN_CONS25
teken_set_cons25(&ts->ts_teken);
#endif /* TEKEN_CONS25 */
tp.tp_row = scp->ysize;
tp.tp_col = scp->xsize;
teken_set_winsize(&ts->ts_teken, &tp);
if (scp->cursor_pos < scp->ysize * scp->xsize) {
/* Valid old cursor position. */
tp.tp_row = scp->cursor_pos / scp->xsize;
tp.tp_col = scp->cursor_pos % scp->xsize;
teken_set_cursor(&ts->ts_teken, &tp);
}
break;
}
return (0);
}
static int
scteken_term(scr_stat *scp, void **softc)
{
if (*softc == &reserved_teken_stat) {
*softc = NULL;
reserved_teken_stat.ts_busy = 0;
}
--sc_term_scteken.te_refcount;
return (0);
}
static void
scteken_puts(scr_stat *scp, u_char *buf, int len, int kernel)
{
teken_stat *ts = scp->ts;
teken_attr_t backup, kattr;
scp->sc->write_in_progress++;
if (kernel) {
/* Use special colors for kernel messages. */
backup = *teken_get_curattr(&ts->ts_teken);
scteken_revattr(SC_KERNEL_CONS_ATTR, &kattr);
teken_set_curattr(&ts->ts_teken, &kattr);
teken_input(&ts->ts_teken, buf, len);
teken_set_curattr(&ts->ts_teken, &backup);
} else {
/* Print user messages with regular colors. */
teken_input(&ts->ts_teken, buf, len);
}
scp->sc->write_in_progress--;
}
static int
scteken_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
struct thread *td)
{
teken_stat *ts = scp->ts;
vid_info_t *vi;
unsigned int attr;
switch (cmd) {
case GIO_ATTR: /* get current attributes */
*(int*)data =
scteken_attr(teken_get_curattr(&ts->ts_teken));
return (0);
case CONS_GETINFO: /* get current (virtual) console info */
vi = (vid_info_t *)data;
if (vi->size != sizeof(struct vid_info))
return EINVAL;
attr = scteken_attr(teken_get_defattr(&ts->ts_teken));
vi->mv_norm.fore = attr & 0x0f;
vi->mv_norm.back = (attr >> 4) & 0x0f;
vi->mv_rev.fore = vi->mv_norm.back;
vi->mv_rev.back = vi->mv_norm.fore;
/*
* The other fields are filled by the upper routine. XXX
*/
return (ENOIOCTL);
}
return (ENOIOCTL);
}
static void
scteken_default_attr(scr_stat *scp, int color, int rev_color)
{
teken_stat *ts = scp->ts;
teken_attr_t ta;
scteken_revattr(color, &ta);
teken_set_defattr(&ts->ts_teken, &ta);
}
static void
scteken_clear(scr_stat *scp)
{
sc_move_cursor(scp, 0, 0);
sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20], SC_NORM_ATTR << 8);
mark_all(scp);
}
static int
scteken_input(scr_stat *scp, int c, struct tty *tp)
{
return FALSE;
}
static const char *
scteken_fkeystr(scr_stat *scp, int c)
{
teken_stat *ts = scp->ts;
unsigned int k;
switch (c) {
case FKEY | F(1): case FKEY | F(2): case FKEY | F(3):
case FKEY | F(4): case FKEY | F(5): case FKEY | F(6):
case FKEY | F(7): case FKEY | F(8): case FKEY | F(9):
case FKEY | F(10): case FKEY | F(11): case FKEY | F(12):
k = TKEY_F1 + c - (FKEY | F(1));
break;
case FKEY | F(49):
k = TKEY_HOME;
break;
case FKEY | F(50):
k = TKEY_UP;
break;
case FKEY | F(51):
k = TKEY_PAGE_UP;
break;
case FKEY | F(53):
k = TKEY_LEFT;
break;
case FKEY | F(55):
k = TKEY_RIGHT;
break;
case FKEY | F(57):
k = TKEY_END;
break;
case FKEY | F(58):
k = TKEY_DOWN;
break;
case FKEY | F(59):
k = TKEY_PAGE_DOWN;
break;
case FKEY | F(60):
k = TKEY_INSERT;
break;
case FKEY | F(61):
k = TKEY_DELETE;
break;
default:
return (NULL);
}
return (teken_get_sequence(&ts->ts_teken, k));
}
static void
scteken_nop(void)
{
}
/*
* libteken routines.
*/
static const unsigned char fgcolors_normal[TC_NCOLORS] = {
FG_BLACK, FG_RED, FG_GREEN, FG_BROWN,
FG_BLUE, FG_MAGENTA, FG_CYAN, FG_LIGHTGREY,
};
static const unsigned char fgcolors_bold[TC_NCOLORS] = {
FG_DARKGREY, FG_LIGHTRED, FG_LIGHTGREEN, FG_YELLOW,
FG_LIGHTBLUE, FG_LIGHTMAGENTA, FG_LIGHTCYAN, FG_WHITE,
};
static const unsigned char bgcolors[TC_NCOLORS] = {
BG_BLACK, BG_RED, BG_GREEN, BG_BROWN,
BG_BLUE, BG_MAGENTA, BG_CYAN, BG_LIGHTGREY,
};
static void
scteken_revattr(unsigned char color, teken_attr_t *a)
{
teken_color_t fg, bg;
/*
* XXX: Reverse conversion of syscons to teken attributes. Not
* realiable. Maybe we should turn it into a 1:1 mapping one of
* these days?
*/
a->ta_format = 0;
a->ta_fgcolor = TC_WHITE;
a->ta_bgcolor = TC_BLACK;
#ifdef FG_BLINK
if (color & FG_BLINK) {
a->ta_format |= TF_BLINK;
color &= ~FG_BLINK;
}
#endif /* FG_BLINK */
for (fg = 0; fg < TC_NCOLORS; fg++) {
for (bg = 0; bg < TC_NCOLORS; bg++) {
if ((fgcolors_normal[fg] | bgcolors[bg]) == color) {
a->ta_fgcolor = fg;
a->ta_bgcolor = bg;
return;
}
if ((fgcolors_bold[fg] | bgcolors[bg]) == color) {
a->ta_fgcolor = fg;
a->ta_bgcolor = bg;
a->ta_format |= TF_BOLD;
return;
}
}
}
}
static unsigned int
scteken_attr(const teken_attr_t *a)
{
unsigned int attr = 0;
teken_color_t fg, bg;
if (a->ta_format & TF_REVERSE) {
fg = teken_256to8(a->ta_bgcolor);
bg = teken_256to8(a->ta_fgcolor);
} else {
fg = teken_256to8(a->ta_fgcolor);
bg = teken_256to8(a->ta_bgcolor);
}
if (a->ta_format & TF_BOLD)
attr |= fgcolors_bold[fg];
else
attr |= fgcolors_normal[fg];
attr |= bgcolors[bg];
#ifdef FG_UNDERLINE
if (a->ta_format & TF_UNDERLINE)
attr |= FG_UNDERLINE;
#endif /* FG_UNDERLINE */
#ifdef FG_BLINK
if (a->ta_format & TF_BLINK)
attr |= FG_BLINK;
#endif /* FG_BLINK */
return (attr);
}
static void
scteken_bell(void *arg)
{
scr_stat *scp = arg;
sc_bell(scp, scp->bell_pitch, scp->bell_duration);
}
static void
scteken_cursor(void *arg, const teken_pos_t *p)
{
scr_stat *scp = arg;
sc_move_cursor(scp, p->tp_col, p->tp_row);
}
#ifdef TEKEN_UTF8
struct unicp437 {
uint16_t unicode_base;
uint8_t cp437_base;
uint8_t length;
};
static const struct unicp437 cp437table[] = {
{ 0x0020, 0x20, 0x5e }, { 0x00a0, 0x20, 0x00 },
{ 0x00a1, 0xad, 0x00 }, { 0x00a2, 0x9b, 0x00 },
{ 0x00a3, 0x9c, 0x00 }, { 0x00a5, 0x9d, 0x00 },
{ 0x00a7, 0x15, 0x00 }, { 0x00aa, 0xa6, 0x00 },
{ 0x00ab, 0xae, 0x00 }, { 0x00ac, 0xaa, 0x00 },
{ 0x00b0, 0xf8, 0x00 }, { 0x00b1, 0xf1, 0x00 },
{ 0x00b2, 0xfd, 0x00 }, { 0x00b5, 0xe6, 0x00 },
{ 0x00b6, 0x14, 0x00 }, { 0x00b7, 0xfa, 0x00 },
{ 0x00ba, 0xa7, 0x00 }, { 0x00bb, 0xaf, 0x00 },
{ 0x00bc, 0xac, 0x00 }, { 0x00bd, 0xab, 0x00 },
{ 0x00bf, 0xa8, 0x00 }, { 0x00c4, 0x8e, 0x01 },
{ 0x00c6, 0x92, 0x00 }, { 0x00c7, 0x80, 0x00 },
{ 0x00c9, 0x90, 0x00 }, { 0x00d1, 0xa5, 0x00 },
{ 0x00d6, 0x99, 0x00 }, { 0x00dc, 0x9a, 0x00 },
{ 0x00df, 0xe1, 0x00 }, { 0x00e0, 0x85, 0x00 },
{ 0x00e1, 0xa0, 0x00 }, { 0x00e2, 0x83, 0x00 },
{ 0x00e4, 0x84, 0x00 }, { 0x00e5, 0x86, 0x00 },
{ 0x00e6, 0x91, 0x00 }, { 0x00e7, 0x87, 0x00 },
{ 0x00e8, 0x8a, 0x00 }, { 0x00e9, 0x82, 0x00 },
{ 0x00ea, 0x88, 0x01 }, { 0x00ec, 0x8d, 0x00 },
{ 0x00ed, 0xa1, 0x00 }, { 0x00ee, 0x8c, 0x00 },
{ 0x00ef, 0x8b, 0x00 }, { 0x00f0, 0xeb, 0x00 },
{ 0x00f1, 0xa4, 0x00 }, { 0x00f2, 0x95, 0x00 },
{ 0x00f3, 0xa2, 0x00 }, { 0x00f4, 0x93, 0x00 },
{ 0x00f6, 0x94, 0x00 }, { 0x00f7, 0xf6, 0x00 },
{ 0x00f8, 0xed, 0x00 }, { 0x00f9, 0x97, 0x00 },
{ 0x00fa, 0xa3, 0x00 }, { 0x00fb, 0x96, 0x00 },
{ 0x00fc, 0x81, 0x00 }, { 0x00ff, 0x98, 0x00 },
{ 0x0192, 0x9f, 0x00 }, { 0x0393, 0xe2, 0x00 },
{ 0x0398, 0xe9, 0x00 }, { 0x03a3, 0xe4, 0x00 },
{ 0x03a6, 0xe8, 0x00 }, { 0x03a9, 0xea, 0x00 },
{ 0x03b1, 0xe0, 0x01 }, { 0x03b4, 0xeb, 0x00 },
{ 0x03b5, 0xee, 0x00 }, { 0x03bc, 0xe6, 0x00 },
{ 0x03c0, 0xe3, 0x00 }, { 0x03c3, 0xe5, 0x00 },
{ 0x03c4, 0xe7, 0x00 }, { 0x03c6, 0xed, 0x00 },
{ 0x03d5, 0xed, 0x00 }, { 0x2010, 0x2d, 0x00 },
{ 0x2014, 0x2d, 0x00 }, { 0x2018, 0x60, 0x00 },
{ 0x2019, 0x27, 0x00 }, { 0x201c, 0x22, 0x00 },
{ 0x201d, 0x22, 0x00 }, { 0x2022, 0x07, 0x00 },
{ 0x203c, 0x13, 0x00 }, { 0x207f, 0xfc, 0x00 },
{ 0x20a7, 0x9e, 0x00 }, { 0x20ac, 0xee, 0x00 },
{ 0x2126, 0xea, 0x00 }, { 0x2190, 0x1b, 0x00 },
{ 0x2191, 0x18, 0x00 }, { 0x2192, 0x1a, 0x00 },
{ 0x2193, 0x19, 0x00 }, { 0x2194, 0x1d, 0x00 },
{ 0x2195, 0x12, 0x00 }, { 0x21a8, 0x17, 0x00 },
{ 0x2202, 0xeb, 0x00 }, { 0x2208, 0xee, 0x00 },
{ 0x2211, 0xe4, 0x00 }, { 0x2212, 0x2d, 0x00 },
{ 0x2219, 0xf9, 0x00 }, { 0x221a, 0xfb, 0x00 },
{ 0x221e, 0xec, 0x00 }, { 0x221f, 0x1c, 0x00 },
{ 0x2229, 0xef, 0x00 }, { 0x2248, 0xf7, 0x00 },
{ 0x2261, 0xf0, 0x00 }, { 0x2264, 0xf3, 0x00 },
{ 0x2265, 0xf2, 0x00 }, { 0x2302, 0x7f, 0x00 },
{ 0x2310, 0xa9, 0x00 }, { 0x2320, 0xf4, 0x00 },
{ 0x2321, 0xf5, 0x00 }, { 0x2500, 0xc4, 0x00 },
{ 0x2502, 0xb3, 0x00 }, { 0x250c, 0xda, 0x00 },
{ 0x2510, 0xbf, 0x00 }, { 0x2514, 0xc0, 0x00 },
{ 0x2518, 0xd9, 0x00 }, { 0x251c, 0xc3, 0x00 },
{ 0x2524, 0xb4, 0x00 }, { 0x252c, 0xc2, 0x00 },
{ 0x2534, 0xc1, 0x00 }, { 0x253c, 0xc5, 0x00 },
{ 0x2550, 0xcd, 0x00 }, { 0x2551, 0xba, 0x00 },
{ 0x2552, 0xd5, 0x00 }, { 0x2553, 0xd6, 0x00 },
{ 0x2554, 0xc9, 0x00 }, { 0x2555, 0xb8, 0x00 },
{ 0x2556, 0xb7, 0x00 }, { 0x2557, 0xbb, 0x00 },
{ 0x2558, 0xd4, 0x00 }, { 0x2559, 0xd3, 0x00 },
{ 0x255a, 0xc8, 0x00 }, { 0x255b, 0xbe, 0x00 },
{ 0x255c, 0xbd, 0x00 }, { 0x255d, 0xbc, 0x00 },
{ 0x255e, 0xc6, 0x01 }, { 0x2560, 0xcc, 0x00 },
{ 0x2561, 0xb5, 0x00 }, { 0x2562, 0xb6, 0x00 },
{ 0x2563, 0xb9, 0x00 }, { 0x2564, 0xd1, 0x01 },
{ 0x2566, 0xcb, 0x00 }, { 0x2567, 0xcf, 0x00 },
{ 0x2568, 0xd0, 0x00 }, { 0x2569, 0xca, 0x00 },
{ 0x256a, 0xd8, 0x00 }, { 0x256b, 0xd7, 0x00 },
{ 0x256c, 0xce, 0x00 }, { 0x2580, 0xdf, 0x00 },
{ 0x2584, 0xdc, 0x00 }, { 0x2588, 0xdb, 0x00 },
{ 0x258c, 0xdd, 0x00 }, { 0x2590, 0xde, 0x00 },
{ 0x2591, 0xb0, 0x02 }, { 0x25a0, 0xfe, 0x00 },
{ 0x25ac, 0x16, 0x00 }, { 0x25b2, 0x1e, 0x00 },
{ 0x25ba, 0x10, 0x00 }, { 0x25bc, 0x1f, 0x00 },
{ 0x25c4, 0x11, 0x00 }, { 0x25cb, 0x09, 0x00 },
{ 0x25d8, 0x08, 0x00 }, { 0x25d9, 0x0a, 0x00 },
{ 0x263a, 0x01, 0x01 }, { 0x263c, 0x0f, 0x00 },
{ 0x2640, 0x0c, 0x00 }, { 0x2642, 0x0b, 0x00 },
{ 0x2660, 0x06, 0x00 }, { 0x2663, 0x05, 0x00 },
{ 0x2665, 0x03, 0x01 }, { 0x266a, 0x0d, 0x01 },
};
static void
scteken_get_cp437(teken_char_t *c, int *attr)
{
int min, mid, max;
min = 0;
max = (sizeof(cp437table) / sizeof(struct unicp437)) - 1;
if (*c < cp437table[0].unicode_base ||
*c > cp437table[max].unicode_base + cp437table[max].length)
goto bad;
while (max >= min) {
mid = (min + max) / 2;
if (*c < cp437table[mid].unicode_base) {
max = mid - 1;
} else if (*c > cp437table[mid].unicode_base +
cp437table[mid].length) {
min = mid + 1;
} else {
*c -= cp437table[mid].unicode_base;
*c += cp437table[mid].cp437_base;
return;
}
}
bad:
/* Character not present in CP437. */
*attr = (FG_RED|BG_BLACK) << 8;
*c = '?';
}
#endif /* TEKEN_UTF8 */
static void
scteken_putchar(void *arg, const teken_pos_t *tp, teken_char_t c,
const teken_attr_t *a)
{
scr_stat *scp = arg;
u_char *map;
u_char ch;
vm_offset_t p;
int cursor, attr;
attr = scteken_attr(a) << 8;
#ifdef TEKEN_UTF8
scteken_get_cp437(&c, &attr);
#endif /* TEKEN_UTF8 */
ch = c;
map = scp->sc->scr_map;
cursor = tp->tp_row * scp->xsize + tp->tp_col;
p = sc_vtb_pointer(&scp->vtb, cursor);
sc_vtb_putchar(&scp->vtb, p, map[ch], attr);
mark_for_update(scp, cursor);
/*
* XXX: Why do we need this? Only marking `cursor' should be
* enough. Without this line, we get artifacts.
*/
mark_for_update(scp, imin(cursor + 1, scp->xsize * scp->ysize - 1));
}
static void
scteken_fill(void *arg, const teken_rect_t *r, teken_char_t c,
const teken_attr_t *a)
{
scr_stat *scp = arg;
u_char *map;
u_char ch;
unsigned int width;
int attr, row;
attr = scteken_attr(a) << 8;
#ifdef TEKEN_UTF8
scteken_get_cp437(&c, &attr);
#endif /* TEKEN_UTF8 */
ch = c;
map = scp->sc->scr_map;
if (r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize) {
/* Single contiguous region to fill. */
sc_vtb_erase(&scp->vtb, r->tr_begin.tp_row * scp->xsize,
(r->tr_end.tp_row - r->tr_begin.tp_row) * scp->xsize,
map[ch], attr);
} else {
/* Fill display line by line. */
width = r->tr_end.tp_col - r->tr_begin.tp_col;
for (row = r->tr_begin.tp_row; row < r->tr_end.tp_row; row++) {
sc_vtb_erase(&scp->vtb, r->tr_begin.tp_row *
scp->xsize + r->tr_begin.tp_col,
width, map[ch], attr);
}
}
/* Mark begin and end positions to be refreshed. */
mark_for_update(scp,
r->tr_begin.tp_row * scp->xsize + r->tr_begin.tp_col);
mark_for_update(scp,
(r->tr_end.tp_row - 1) * scp->xsize + (r->tr_end.tp_col - 1));
sc_remove_cutmarking(scp);
}
static void
scteken_copy(void *arg, const teken_rect_t *r, const teken_pos_t *p)
{
scr_stat *scp = arg;
unsigned int width;
int src, dst, end;
#ifndef SC_NO_HISTORY
/*
* We count a line of input as history if we perform a copy of
* one whole line upward. In other words: if a line of text gets
* overwritten by a rectangle that's right below it.
*/
if (scp->history != NULL &&
r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize &&
r->tr_begin.tp_row == p->tp_row + 1) {
sc_hist_save_one_line(scp, p->tp_row);
}
#endif
if (r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize) {
/* Single contiguous region to copy. */
sc_vtb_move(&scp->vtb, r->tr_begin.tp_row * scp->xsize,
p->tp_row * scp->xsize,
(r->tr_end.tp_row - r->tr_begin.tp_row) * scp->xsize);
} else {
/* Copy line by line. */
width = r->tr_end.tp_col - r->tr_begin.tp_col;
if (p->tp_row < r->tr_begin.tp_row) {
/* Copy from top to bottom. */
src = r->tr_begin.tp_row * scp->xsize +
r->tr_begin.tp_col;
end = r->tr_end.tp_row * scp->xsize +
r->tr_end.tp_col;
dst = p->tp_row * scp->xsize + p->tp_col;
while (src < end) {
sc_vtb_move(&scp->vtb, src, dst, width);
src += scp->xsize;
dst += scp->xsize;
}
} else {
/* Copy from bottom to top. */
src = (r->tr_end.tp_row - 1) * scp->xsize +
r->tr_begin.tp_col;
end = r->tr_begin.tp_row * scp->xsize +
r->tr_begin.tp_col;
dst = (p->tp_row + r->tr_end.tp_row -
r->tr_begin.tp_row - 1) * scp->xsize + p->tp_col;
while (src >= end) {
sc_vtb_move(&scp->vtb, src, dst, width);
src -= scp->xsize;
dst -= scp->xsize;
}
}
}
/* Mark begin and end positions to be refreshed. */
mark_for_update(scp,
p->tp_row * scp->xsize + p->tp_col);
mark_for_update(scp,
(p->tp_row + r->tr_end.tp_row - r->tr_begin.tp_row - 1) *
scp->xsize +
(p->tp_col + r->tr_end.tp_col - r->tr_begin.tp_col - 1));
sc_remove_cutmarking(scp);
}
static void
scteken_param(void *arg, int cmd, unsigned int value)
{
scr_stat *scp = arg;
switch (cmd) {
case TP_SHOWCURSOR:
if (value) {
sc_change_cursor_shape(scp,
CONS_RESET_CURSOR|CONS_LOCAL_CURSOR, -1, -1);
} else {
sc_change_cursor_shape(scp,
CONS_HIDDEN_CURSOR|CONS_LOCAL_CURSOR, -1, -1);
}
break;
case TP_SWITCHVT:
sc_switch_scr(scp->sc, value);
break;
case TP_SETBELLPD:
scp->bell_pitch = TP_SETBELLPD_PITCH(value);
scp->bell_duration = TP_SETBELLPD_DURATION(value);
break;
case TP_MOUSE:
scp->mouse_level = value;
break;
}
}
static void
scteken_respond(void *arg, const void *buf, size_t len)
{
scr_stat *scp = arg;
sc_respond(scp, buf, len, 0);
}
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