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freebsd-skq/sys/dev/syscons/scterm-teken.c
bde 0bc4f8ada7 Fix bright colors for syscons, and make them work for the first time 
for vt.  Restore syscons' rendering of background (bg) brightness as
foreground (fg) blinking and vice versa, and add rendering of blinking
as background brightness to vt.

Bright/saturated is conflated with light/white in the implementation
and in this description.

Bright colors were broken in all cases, but appeared to work in the
only case shown by "vidcontrol show".  A boldness hack was applied
only in 1 layering-violation place (for some syscons sequences) where
it made some cases seem to work but was undone by clearing bold using
ANSI sequences, and more seriously was not undone when setting
ANSI/xterm dark colors so left them bright.  Move this hack to drivers.

The boldness hack is only for fg brightness.  Restore/add a similar hack
for bg brightness rendered as fg blinking and vice versa.  This works
even better for vt, since vt changes the default text mode to give the
more useful bg brightness instead of fg blinking.

The brightness bit in colors was unnecessarily removed by the boldness
hack.  In other cases, it was lost later by teken_256to8().  Use
teken_256to16() to not lose it.  teken_256to8() was intended to be
used for bg colors to allow finer or bg-specific control for the more
difficult reduction to 8; however, since 16 bg colors actually work
on VGA except in syscons text mode and the conversion isn't subtle
enough to significantly in that mode, teken_256to8() is not used now.

There are still bugs, especially in vidcontrol, if bright/blinking
background colors are set.

Restore XOR logic for bold/bright fg in syscons (don't change OR
logic for vt).  Remove broken ifdef on FG_UNDERLINE and its wrong
or missing bit and restore the correct hard-coded bit.  FG_UNDERLINE
is only for mono mode which is not really supported.

Restore XOR logic for blinking/bright bg in syscons (in vt, add
OR logic and render as bright bg).  Remove related broken ifdef
on BG_BLINKING and its missing bit and restore the correct
hard-coded bit.  The same bit means blinking or bright bg depending
on the mode, and we want to ignore the difference everywhere.

Simplify conversions of attributes in syscons.  Don't pretend to
support bold fonts.  Don't support unusual encodings of brightness.
It is as good as possible to map 16 VGA colors to 16 xterm-16
colors.  E.g., VGA brown -> xterm-16 Olive will be converted back
to VGA brown, so we don't need to convert to xterm-256 Brown.  Teken
cons25 compatibility code already does the same, and duplicates some
small tables.  This is mostly for the sc -> te direction.  The other
direction uses teken_256to16() which is too generic.
2017-03-18 11:13:54 +00:00

710 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(__arm__) || defined(__mips__) || \
defined(__powerpc__) || defined(__sparc64__)
#include <machine/sc_machdep.h>
#else
#include <machine/pc/display.h>
#endif
#include <dev/syscons/syscons.h>
#include <teken/teken.h>
static void scteken_sc_to_te_attr(unsigned char, teken_attr_t *);
static int scteken_te_to_sc_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 sc_term_set_cursor_t scteken_set_cursor;
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,
scteken_set_cursor,
};
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);
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_sc_to_te_attr(sc_kattr(), &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;
int attr;
switch (cmd) {
case GIO_ATTR: /* get current attributes */
*(int*)data =
scteken_te_to_sc_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_te_to_sc_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_sc_to_te_attr(color, &ta);
teken_set_defattr(&ts->ts_teken, &ta);
}
static void
scteken_clear(scr_stat *scp)
{
teken_stat *ts = scp->ts;
sc_move_cursor(scp, 0, 0);
scteken_set_cursor(scp, 0, 0);
sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20],
scteken_te_to_sc_attr(teken_get_curattr(&ts->ts_teken))
<< 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_set_cursor(scr_stat *scp, int col, int row)
{
teken_stat *ts = scp->ts;
teken_pos_t tp;
tp.tp_col = col;
tp.tp_row = row;
teken_set_cursor(&ts->ts_teken, &tp);
}
static void
scteken_nop(void)
{
}
/*
* libteken routines.
*/
static const teken_color_t sc_to_te_color[] = {
TC_BLACK, TC_BLUE, TC_GREEN, TC_CYAN,
TC_RED, TC_MAGENTA, TC_BROWN, TC_WHITE,
};
static const unsigned char te_to_sc_color[] = {
FG_BLACK, FG_RED, FG_GREEN, FG_BROWN,
FG_BLUE, FG_MAGENTA, FG_CYAN, FG_LIGHTGREY,
};
static void
scteken_sc_to_te_attr(unsigned char color, teken_attr_t *a)
{
/*
* Conversions of attrs are not reversible. Since sc attrs are
* pure colors in the simplest mode (16-color graphics) and the
* API is too deficient to tell us the mode, always convert to
* pure colors. The conversion is essentially the identity except
* for reordering the non-brightness bits in the 2 color numbers.
*/
a->ta_format = 0;
a->ta_fgcolor = sc_to_te_color[color & 7] | (color & 8);
a->ta_bgcolor = sc_to_te_color[(color >> 4) & 7] | ((color >> 4) & 8);
}
static int
scteken_te_to_sc_attr(const teken_attr_t *a)
{
int attr;
teken_color_t fg, bg;
if (a->ta_format & TF_REVERSE) {
fg = a->ta_bgcolor;
bg = a->ta_fgcolor;
} else {
fg = a->ta_fgcolor;
bg = a->ta_bgcolor;
}
if (fg >= 16)
fg = teken_256to16(fg);
if (bg >= 16)
bg = teken_256to16(bg);
attr = te_to_sc_color[fg & 7] | (fg & 8) |
((te_to_sc_color[bg & 7] | (bg & 8)) << 4);
/* XXX: underline mapping for Hercules adapter can be better. */
if (a->ta_format & (TF_BOLD | TF_UNDERLINE))
attr ^= 8;
if (a->ta_format & TF_BLINK)
attr ^= 0x80;
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 }, { 0x00c0, 0x41, 0x00 },
{ 0x00c1, 0x41, 0x00 }, { 0x00c2, 0x41, 0x00 },
{ 0x00c4, 0x8e, 0x01 }, { 0x00c6, 0x92, 0x00 },
{ 0x00c7, 0x80, 0x00 }, { 0x00c8, 0x45, 0x00 },
{ 0x00c9, 0x90, 0x00 }, { 0x00ca, 0x45, 0x00 },
{ 0x00cb, 0x45, 0x00 }, { 0x00cc, 0x49, 0x00 },
{ 0x00cd, 0x49, 0x00 }, { 0x00ce, 0x49, 0x00 },
{ 0x00cf, 0x49, 0x00 }, { 0x00d1, 0xa5, 0x00 },
{ 0x00d2, 0x4f, 0x00 }, { 0x00d3, 0x4f, 0x00 },
{ 0x00d4, 0x4f, 0x00 }, { 0x00d6, 0x99, 0x00 },
{ 0x00d9, 0x55, 0x00 }, { 0x00da, 0x55, 0x00 },
{ 0x00db, 0x55, 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 },
{ 0x013f, 0x4c, 0x00 }, { 0x0140, 0x6c, 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 },
{ 0x25ae, 0xdb, 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;
/*
* No support for printing right hand sides for CJK fullwidth
* characters. Simply print a space and assume that the left
* hand side describes the entire character.
*/
attr = scteken_te_to_sc_attr(a) << 8;
if (a->ta_format & TF_CJK_RIGHT)
c = ' ';
#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_te_to_sc_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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