The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/syscons/scterm-teken.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
    5  * All rights reserved.
    6  *
    7  * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
    8  * All rights reserved.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer as
   15  *    the first lines of this file unmodified.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
   21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   23  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #include <sys/cdefs.h>
   33 __FBSDID("$FreeBSD$");
   34 
   35 #include "opt_syscons.h"
   36 #include "opt_teken.h"
   37 
   38 #include <sys/param.h>
   39 #include <sys/systm.h>
   40 #include <sys/kernel.h>
   41 #include <sys/module.h>
   42 #include <sys/consio.h>
   43 #include <sys/kbio.h>
   44 
   45 #if defined(__arm__) || defined(__mips__) || defined(__powerpc__)
   46 #include <machine/sc_machdep.h>
   47 #else
   48 #include <machine/pc/display.h>
   49 #endif
   50 
   51 #include <dev/syscons/syscons.h>
   52 
   53 #include <teken/teken.h>
   54 
   55 static void scteken_sc_to_te_attr(unsigned char, teken_attr_t *);
   56 static int scteken_te_to_sc_attr(const teken_attr_t *);
   57 
   58 static sc_term_init_t           scteken_init;
   59 static sc_term_term_t           scteken_term;
   60 static sc_term_puts_t           scteken_puts;
   61 static sc_term_ioctl_t          scteken_ioctl;
   62 static sc_term_default_attr_t   scteken_default_attr;
   63 static sc_term_clear_t          scteken_clear;
   64 static sc_term_input_t          scteken_input;
   65 static sc_term_fkeystr_t        scteken_fkeystr;
   66 static sc_term_sync_t           scteken_sync;
   67 static void                     scteken_nop(void);
   68 
   69 typedef struct {
   70         teken_t         ts_teken;
   71         int             ts_busy;
   72 } teken_stat;
   73 
   74 static teken_stat       reserved_teken_stat;
   75 
   76 static void scteken_sync_internal(scr_stat *, teken_stat *);
   77 
   78 static sc_term_sw_t sc_term_scteken = {
   79         { NULL, NULL },
   80         "scteken",                      /* emulator name */
   81         "teken terminal",               /* description */
   82         "*",                            /* matching renderer */
   83         sizeof(teken_stat),             /* softc size */
   84         0,
   85         scteken_init,
   86         scteken_term,
   87         scteken_puts,
   88         scteken_ioctl,
   89         (sc_term_reset_t *)scteken_nop,
   90         scteken_default_attr,
   91         scteken_clear,
   92         (sc_term_notify_t *)scteken_nop,
   93         scteken_input,
   94         scteken_fkeystr,
   95         scteken_sync,
   96 };
   97 
   98 SCTERM_MODULE(scteken, sc_term_scteken);
   99 
  100 static tf_bell_t        scteken_bell;
  101 static tf_cursor_t      scteken_cursor;
  102 static tf_putchar_t     scteken_putchar;
  103 static tf_fill_t        scteken_fill;
  104 static tf_copy_t        scteken_copy;
  105 static tf_param_t       scteken_param;
  106 static tf_respond_t     scteken_respond;
  107 
  108 static const teken_funcs_t scteken_funcs = {
  109         .tf_bell        = scteken_bell,
  110         .tf_cursor      = scteken_cursor,
  111         .tf_putchar     = scteken_putchar,
  112         .tf_fill        = scteken_fill,
  113         .tf_copy        = scteken_copy,
  114         .tf_param       = scteken_param,
  115         .tf_respond     = scteken_respond,
  116 };
  117 
  118 static int
  119 scteken_init(scr_stat *scp, void **softc, int code)
  120 {
  121         teken_stat *ts;
  122         teken_attr_t ta;
  123 
  124         if (*softc == NULL) {
  125                 if (reserved_teken_stat.ts_busy)
  126                         return (EINVAL);
  127                 *softc = &reserved_teken_stat;
  128         }
  129         ts = *softc;
  130 
  131         switch (code) {
  132         case SC_TE_COLD_INIT:
  133                 ++sc_term_scteken.te_refcount;
  134                 ts->ts_busy = 1;
  135                 /* FALLTHROUGH */
  136         case SC_TE_WARM_INIT:
  137                 ta = *teken_get_defattr(&ts->ts_teken);
  138                 teken_init(&ts->ts_teken, &scteken_funcs, scp);
  139                 teken_set_defattr(&ts->ts_teken, &ta);
  140 #ifndef TEKEN_UTF8
  141                 teken_set_8bit(&ts->ts_teken);
  142 #endif /* !TEKEN_UTF8 */
  143 #ifdef TEKEN_CONS25
  144                 teken_set_cons25(&ts->ts_teken);
  145 #endif /* TEKEN_CONS25 */
  146                 teken_set_cons25keys(&ts->ts_teken);
  147                 scteken_sync_internal(scp, ts);
  148                 break;
  149         }
  150 
  151         return (0);
  152 }
  153 
  154 static int
  155 scteken_term(scr_stat *scp, void **softc)
  156 {
  157 
  158         if (*softc == &reserved_teken_stat) {
  159                 *softc = NULL;
  160                 reserved_teken_stat.ts_busy = 0;
  161         }
  162         --sc_term_scteken.te_refcount;
  163 
  164         return (0);
  165 }
  166 
  167 static void
  168 scteken_puts(scr_stat *scp, u_char *buf, int len)
  169 {
  170         teken_stat *ts = scp->ts;
  171 
  172         scp->sc->write_in_progress++;
  173         teken_input(&ts->ts_teken, buf, len);
  174         scp->sc->write_in_progress--;
  175 }
  176 
  177 static int
  178 scteken_ioctl(scr_stat *scp, struct tty *tp, u_long cmd, caddr_t data,
  179              struct thread *td)
  180 {
  181         teken_stat *ts = scp->ts;
  182         vid_info_t *vi;
  183         int attr;
  184 
  185         switch (cmd) {
  186         case GIO_ATTR:          /* get current attributes */
  187                 *(int*)data =
  188                     scteken_te_to_sc_attr(teken_get_curattr(&ts->ts_teken));
  189                 return (0);
  190         case CONS_GETINFO:      /* get current (virtual) console info */
  191                 vi = (vid_info_t *)data;
  192                 if (vi->size != sizeof(struct vid_info))
  193                         return EINVAL;
  194 
  195                 attr = scteken_te_to_sc_attr(teken_get_defattr(&ts->ts_teken));
  196                 vi->mv_norm.fore = attr & 0x0f;
  197                 vi->mv_norm.back = (attr >> 4) & 0x0f;
  198                 vi->mv_rev.fore = vi->mv_norm.back;
  199                 vi->mv_rev.back = vi->mv_norm.fore;
  200                 /*
  201                  * The other fields are filled by the upper routine. XXX
  202                  */
  203                 return (ENOIOCTL);
  204         }
  205 
  206         return (ENOIOCTL);
  207 }
  208 
  209 static void
  210 scteken_default_attr(scr_stat *scp, int color, int rev_color)
  211 {
  212         teken_stat *ts = scp->ts;
  213         teken_attr_t ta;
  214 
  215         scteken_sc_to_te_attr(color, &ta);
  216         teken_set_defattr(&ts->ts_teken, &ta);
  217 }
  218 
  219 static void
  220 scteken_clear(scr_stat *scp)
  221 {
  222         teken_stat *ts = scp->ts;
  223 
  224         sc_move_cursor(scp, 0, 0);
  225         scteken_sync_internal(scp, ts);
  226         sc_vtb_clear(&scp->vtb, scp->sc->scr_map[0x20],
  227                      scteken_te_to_sc_attr(teken_get_curattr(&ts->ts_teken))
  228                      << 8);
  229         mark_all(scp);
  230 }
  231 
  232 static int
  233 scteken_input(scr_stat *scp, int c, struct tty *tp)
  234 {
  235 
  236         return FALSE;
  237 }
  238 
  239 static const char *
  240 scteken_fkeystr(scr_stat *scp, int c)
  241 {
  242         teken_stat *ts = scp->ts;
  243         unsigned int k;
  244 
  245         switch (c) {
  246         case FKEY | F(1):  case FKEY | F(2):  case FKEY | F(3):
  247         case FKEY | F(4):  case FKEY | F(5):  case FKEY | F(6):
  248         case FKEY | F(7):  case FKEY | F(8):  case FKEY | F(9):
  249         case FKEY | F(10): case FKEY | F(11): case FKEY | F(12):
  250                 k = TKEY_F1 + c - (FKEY | F(1));
  251                 break;
  252         case FKEY | F(49):
  253                 k = TKEY_HOME;
  254                 break;
  255         case FKEY | F(50):
  256                 k = TKEY_UP;
  257                 break;
  258         case FKEY | F(51):
  259                 k = TKEY_PAGE_UP;
  260                 break;
  261         case FKEY | F(53):
  262                 k = TKEY_LEFT;
  263                 break;
  264         case FKEY | F(55):
  265                 k = TKEY_RIGHT;
  266                 break;
  267         case FKEY | F(57):
  268                 k = TKEY_END;
  269                 break;
  270         case FKEY | F(58):
  271                 k = TKEY_DOWN;
  272                 break;
  273         case FKEY | F(59):
  274                 k = TKEY_PAGE_DOWN;
  275                 break;
  276         case FKEY | F(60):
  277                 k = TKEY_INSERT;
  278                 break;
  279         case FKEY | F(61):
  280                 k = TKEY_DELETE;
  281                 break;
  282         default:
  283                 return (NULL);
  284         }
  285 
  286         return (teken_get_sequence(&ts->ts_teken, k));
  287 }
  288 
  289 static void
  290 scteken_sync_internal(scr_stat *scp, teken_stat *ts)
  291 {
  292         teken_pos_t tp;
  293 
  294         tp.tp_col = scp->xsize;
  295         tp.tp_row = scp->ysize;
  296         teken_set_winsize_noreset(&ts->ts_teken, &tp);
  297         tp.tp_col = scp->xpos;
  298         tp.tp_row = scp->ypos;
  299         teken_set_cursor(&ts->ts_teken, &tp);
  300 }
  301 
  302 static void
  303 scteken_sync(scr_stat *scp)
  304 {
  305         scteken_sync_internal(scp, scp->ts);
  306 }
  307 
  308 static void
  309 scteken_nop(void)
  310 {
  311 
  312 }
  313 
  314 /*
  315  * libteken routines.
  316  */
  317 
  318 static const teken_color_t sc_to_te_color[] = {
  319         TC_BLACK,     TC_BLUE,         TC_GREEN,     TC_CYAN,
  320         TC_RED,       TC_MAGENTA,      TC_YELLOW,    TC_WHITE,
  321 };
  322 
  323 static const unsigned char te_to_sc_color[] = {
  324         FG_BLACK,     FG_RED,          FG_GREEN,     FG_BROWN,
  325         FG_BLUE,      FG_MAGENTA,      FG_CYAN,      FG_LIGHTGREY,
  326 };
  327 
  328 static void
  329 scteken_sc_to_te_attr(unsigned char color, teken_attr_t *a)
  330 {
  331 
  332         /*
  333          * Conversions of attrs are not reversible.  Since sc attrs are
  334          * pure colors in the simplest mode (16-color graphics) and the
  335          * API is too deficient to tell us the mode, always convert to
  336          * pure colors.  The conversion is essentially the identity except
  337          * for reordering the non-brightness bits in the 2 color numbers.
  338          */
  339         a->ta_format = 0;
  340         a->ta_fgcolor = sc_to_te_color[color & 7] | (color & 8);
  341         a->ta_bgcolor = sc_to_te_color[(color >> 4) & 7] | ((color >> 4) & 8);
  342 }
  343 
  344 static int
  345 scteken_te_to_sc_attr(const teken_attr_t *a)
  346 {
  347         int attr;
  348         teken_color_t fg, bg;
  349 
  350         if (a->ta_format & TF_REVERSE) {
  351                 fg = a->ta_bgcolor;
  352                 bg = a->ta_fgcolor;
  353         } else {
  354                 fg = a->ta_fgcolor;
  355                 bg = a->ta_bgcolor;
  356         }
  357         if (fg >= 16)
  358                 fg = teken_256to16(fg);
  359         if (bg >= 16)
  360                 bg = teken_256to16(bg);
  361         attr = te_to_sc_color[fg & 7] | (fg & 8) |
  362             ((te_to_sc_color[bg & 7] | (bg & 8)) << 4);
  363 
  364         /* XXX: underline mapping for Hercules adapter can be better. */
  365         if (a->ta_format & (TF_BOLD | TF_UNDERLINE))
  366                 attr ^= 8;
  367         if (a->ta_format & TF_BLINK)
  368                 attr ^= 0x80;
  369 
  370         return (attr);
  371 }
  372 
  373 static void
  374 scteken_bell(void *arg)
  375 {
  376         scr_stat *scp = arg;
  377 
  378         sc_bell(scp, scp->bell_pitch, scp->bell_duration);
  379 }
  380 
  381 static void
  382 scteken_cursor(void *arg, const teken_pos_t *p)
  383 {
  384         scr_stat *scp = arg;
  385 
  386         sc_move_cursor(scp, p->tp_col, p->tp_row);
  387 }
  388 
  389 #ifdef TEKEN_UTF8
  390 struct unicp437 {
  391         uint16_t        unicode_base;
  392         uint8_t         cp437_base;
  393         uint8_t         length;
  394 };
  395 
  396 static const struct unicp437 cp437table[] = {
  397         { 0x0020, 0x20, 0x5e }, { 0x00a0, 0x20, 0x00 },
  398         { 0x00a1, 0xad, 0x00 }, { 0x00a2, 0x9b, 0x00 },
  399         { 0x00a3, 0x9c, 0x00 }, { 0x00a5, 0x9d, 0x00 },
  400         { 0x00a7, 0x15, 0x00 }, { 0x00aa, 0xa6, 0x00 },
  401         { 0x00ab, 0xae, 0x00 }, { 0x00ac, 0xaa, 0x00 },
  402         { 0x00b0, 0xf8, 0x00 }, { 0x00b1, 0xf1, 0x00 },
  403         { 0x00b2, 0xfd, 0x00 }, { 0x00b5, 0xe6, 0x00 },
  404         { 0x00b6, 0x14, 0x00 }, { 0x00b7, 0xfa, 0x00 },
  405         { 0x00ba, 0xa7, 0x00 }, { 0x00bb, 0xaf, 0x00 },
  406         { 0x00bc, 0xac, 0x00 }, { 0x00bd, 0xab, 0x00 },
  407         { 0x00bf, 0xa8, 0x00 }, { 0x00c0, 0x41, 0x00 },
  408         { 0x00c1, 0x41, 0x00 }, { 0x00c2, 0x41, 0x00 },
  409         { 0x00c4, 0x8e, 0x01 }, { 0x00c6, 0x92, 0x00 }, 
  410         { 0x00c7, 0x80, 0x00 }, { 0x00c8, 0x45, 0x00 },
  411         { 0x00c9, 0x90, 0x00 }, { 0x00ca, 0x45, 0x00 },
  412         { 0x00cb, 0x45, 0x00 }, { 0x00cc, 0x49, 0x00 },
  413         { 0x00cd, 0x49, 0x00 }, { 0x00ce, 0x49, 0x00 },
  414         { 0x00cf, 0x49, 0x00 }, { 0x00d1, 0xa5, 0x00 },
  415         { 0x00d2, 0x4f, 0x00 }, { 0x00d3, 0x4f, 0x00 },
  416         { 0x00d4, 0x4f, 0x00 }, { 0x00d6, 0x99, 0x00 }, 
  417         { 0x00d9, 0x55, 0x00 }, { 0x00da, 0x55, 0x00 },
  418         { 0x00db, 0x55, 0x00 }, { 0x00dc, 0x9a, 0x00 },
  419         { 0x00df, 0xe1, 0x00 }, { 0x00e0, 0x85, 0x00 },
  420         { 0x00e1, 0xa0, 0x00 }, { 0x00e2, 0x83, 0x00 },
  421         { 0x00e4, 0x84, 0x00 }, { 0x00e5, 0x86, 0x00 },
  422         { 0x00e6, 0x91, 0x00 }, { 0x00e7, 0x87, 0x00 },
  423         { 0x00e8, 0x8a, 0x00 }, { 0x00e9, 0x82, 0x00 },
  424         { 0x00ea, 0x88, 0x01 }, { 0x00ec, 0x8d, 0x00 },
  425         { 0x00ed, 0xa1, 0x00 }, { 0x00ee, 0x8c, 0x00 },
  426         { 0x00ef, 0x8b, 0x00 }, { 0x00f0, 0xeb, 0x00 },
  427         { 0x00f1, 0xa4, 0x00 }, { 0x00f2, 0x95, 0x00 },
  428         { 0x00f3, 0xa2, 0x00 }, { 0x00f4, 0x93, 0x00 },
  429         { 0x00f6, 0x94, 0x00 }, { 0x00f7, 0xf6, 0x00 },
  430         { 0x00f8, 0xed, 0x00 }, { 0x00f9, 0x97, 0x00 },
  431         { 0x00fa, 0xa3, 0x00 }, { 0x00fb, 0x96, 0x00 },
  432         { 0x00fc, 0x81, 0x00 }, { 0x00ff, 0x98, 0x00 },
  433         { 0x013f, 0x4c, 0x00 }, { 0x0140, 0x6c, 0x00 },
  434         { 0x0192, 0x9f, 0x00 }, { 0x0393, 0xe2, 0x00 },
  435         { 0x0398, 0xe9, 0x00 }, { 0x03a3, 0xe4, 0x00 },
  436         { 0x03a6, 0xe8, 0x00 }, { 0x03a9, 0xea, 0x00 },
  437         { 0x03b1, 0xe0, 0x01 }, { 0x03b4, 0xeb, 0x00 },
  438         { 0x03b5, 0xee, 0x00 }, { 0x03bc, 0xe6, 0x00 },
  439         { 0x03c0, 0xe3, 0x00 }, { 0x03c3, 0xe5, 0x00 },
  440         { 0x03c4, 0xe7, 0x00 }, { 0x03c6, 0xed, 0x00 },
  441         { 0x03d5, 0xed, 0x00 }, { 0x2010, 0x2d, 0x00 },
  442         { 0x2014, 0x2d, 0x00 }, { 0x2018, 0x60, 0x00 },
  443         { 0x2019, 0x27, 0x00 }, { 0x201c, 0x22, 0x00 },
  444         { 0x201d, 0x22, 0x00 }, { 0x2022, 0x07, 0x00 },
  445         { 0x203c, 0x13, 0x00 }, { 0x207f, 0xfc, 0x00 },
  446         { 0x20a7, 0x9e, 0x00 }, { 0x20ac, 0xee, 0x00 },
  447         { 0x2126, 0xea, 0x00 }, { 0x2190, 0x1b, 0x00 },
  448         { 0x2191, 0x18, 0x00 }, { 0x2192, 0x1a, 0x00 },
  449         { 0x2193, 0x19, 0x00 }, { 0x2194, 0x1d, 0x00 },
  450         { 0x2195, 0x12, 0x00 }, { 0x21a8, 0x17, 0x00 },
  451         { 0x2202, 0xeb, 0x00 }, { 0x2208, 0xee, 0x00 },
  452         { 0x2211, 0xe4, 0x00 }, { 0x2212, 0x2d, 0x00 },
  453         { 0x2219, 0xf9, 0x00 }, { 0x221a, 0xfb, 0x00 },
  454         { 0x221e, 0xec, 0x00 }, { 0x221f, 0x1c, 0x00 },
  455         { 0x2229, 0xef, 0x00 }, { 0x2248, 0xf7, 0x00 },
  456         { 0x2261, 0xf0, 0x00 }, { 0x2264, 0xf3, 0x00 },
  457         { 0x2265, 0xf2, 0x00 }, { 0x2302, 0x7f, 0x00 },
  458         { 0x2310, 0xa9, 0x00 }, { 0x2320, 0xf4, 0x00 },
  459         { 0x2321, 0xf5, 0x00 }, { 0x2500, 0xc4, 0x00 },
  460         { 0x2502, 0xb3, 0x00 }, { 0x250c, 0xda, 0x00 },
  461         { 0x2510, 0xbf, 0x00 }, { 0x2514, 0xc0, 0x00 },
  462         { 0x2518, 0xd9, 0x00 }, { 0x251c, 0xc3, 0x00 },
  463         { 0x2524, 0xb4, 0x00 }, { 0x252c, 0xc2, 0x00 },
  464         { 0x2534, 0xc1, 0x00 }, { 0x253c, 0xc5, 0x00 },
  465         { 0x2550, 0xcd, 0x00 }, { 0x2551, 0xba, 0x00 },
  466         { 0x2552, 0xd5, 0x00 }, { 0x2553, 0xd6, 0x00 },
  467         { 0x2554, 0xc9, 0x00 }, { 0x2555, 0xb8, 0x00 },
  468         { 0x2556, 0xb7, 0x00 }, { 0x2557, 0xbb, 0x00 },
  469         { 0x2558, 0xd4, 0x00 }, { 0x2559, 0xd3, 0x00 },
  470         { 0x255a, 0xc8, 0x00 }, { 0x255b, 0xbe, 0x00 },
  471         { 0x255c, 0xbd, 0x00 }, { 0x255d, 0xbc, 0x00 },
  472         { 0x255e, 0xc6, 0x01 }, { 0x2560, 0xcc, 0x00 },
  473         { 0x2561, 0xb5, 0x00 }, { 0x2562, 0xb6, 0x00 },
  474         { 0x2563, 0xb9, 0x00 }, { 0x2564, 0xd1, 0x01 },
  475         { 0x2566, 0xcb, 0x00 }, { 0x2567, 0xcf, 0x00 },
  476         { 0x2568, 0xd0, 0x00 }, { 0x2569, 0xca, 0x00 },
  477         { 0x256a, 0xd8, 0x00 }, { 0x256b, 0xd7, 0x00 },
  478         { 0x256c, 0xce, 0x00 }, { 0x2580, 0xdf, 0x00 },
  479         { 0x2584, 0xdc, 0x00 }, { 0x2588, 0xdb, 0x00 },
  480         { 0x258c, 0xdd, 0x00 }, { 0x2590, 0xde, 0x00 },
  481         { 0x2591, 0xb0, 0x02 }, { 0x25a0, 0xfe, 0x00 },
  482         { 0x25ac, 0x16, 0x00 }, 
  483         { 0x25ae, 0xdb, 0x00 }, { 0x25b2, 0x1e, 0x00 },
  484         { 0x25ba, 0x10, 0x00 }, { 0x25bc, 0x1f, 0x00 },
  485         { 0x25c4, 0x11, 0x00 }, { 0x25cb, 0x09, 0x00 },
  486         { 0x25d8, 0x08, 0x00 }, { 0x25d9, 0x0a, 0x00 },
  487         { 0x263a, 0x01, 0x01 }, { 0x263c, 0x0f, 0x00 },
  488         { 0x2640, 0x0c, 0x00 }, { 0x2642, 0x0b, 0x00 },
  489         { 0x2660, 0x06, 0x00 }, { 0x2663, 0x05, 0x00 },
  490         { 0x2665, 0x03, 0x01 }, { 0x266a, 0x0d, 0x01 },
  491 };
  492 
  493 static void
  494 scteken_get_cp437(teken_char_t *c, int *attr)
  495 {
  496         int min, mid, max;
  497 
  498         min = 0;
  499         max = (sizeof(cp437table) / sizeof(struct unicp437)) - 1;
  500 
  501         if (*c < cp437table[0].unicode_base ||
  502             *c > cp437table[max].unicode_base + cp437table[max].length)
  503                 goto bad;
  504 
  505         while (max >= min) {
  506                 mid = (min + max) / 2;
  507                 if (*c < cp437table[mid].unicode_base) {
  508                         max = mid - 1;
  509                 } else if (*c > cp437table[mid].unicode_base +
  510                     cp437table[mid].length) {
  511                         min = mid + 1;
  512                 } else {
  513                         *c -= cp437table[mid].unicode_base;
  514                         *c += cp437table[mid].cp437_base;
  515                         return;
  516                 }
  517         }
  518 bad:
  519         /* Character not present in CP437. */
  520         *attr = (FG_RED|BG_BLACK) << 8;
  521         *c = '?';
  522 }
  523 #endif /* TEKEN_UTF8 */
  524 
  525 static void
  526 scteken_putchar(void *arg, const teken_pos_t *tp, teken_char_t c,
  527     const teken_attr_t *a)
  528 {
  529         scr_stat *scp = arg;
  530         u_char *map;
  531         u_char ch;
  532         vm_offset_t p;
  533         int cursor, attr;
  534 
  535         /*
  536          * No support for printing right hand sides for CJK fullwidth
  537          * characters. Simply print a space and assume that the left
  538          * hand side describes the entire character.
  539          */
  540         attr = scteken_te_to_sc_attr(a) << 8;
  541         if (a->ta_format & TF_CJK_RIGHT)
  542                 c = ' ';
  543 #ifdef TEKEN_UTF8
  544         scteken_get_cp437(&c, &attr);
  545 #endif /* TEKEN_UTF8 */
  546         ch = c;
  547 
  548         map = scp->sc->scr_map;
  549 
  550         cursor = tp->tp_row * scp->xsize + tp->tp_col;
  551         p = sc_vtb_pointer(&scp->vtb, cursor);
  552         sc_vtb_putchar(&scp->vtb, p, map[ch], attr);
  553 
  554         mark_for_update(scp, cursor);
  555         /*
  556          * XXX: Why do we need this? Only marking `cursor' should be
  557          * enough. Without this line, we get artifacts.
  558          */
  559         mark_for_update(scp, imin(cursor + 1, scp->xsize * scp->ysize - 1));
  560 }
  561 
  562 static void
  563 scteken_fill(void *arg, const teken_rect_t *r, teken_char_t c,
  564     const teken_attr_t *a)
  565 {
  566         scr_stat *scp = arg;
  567         u_char *map;
  568         u_char ch;
  569         unsigned int width;
  570         int attr, row;
  571 
  572         attr = scteken_te_to_sc_attr(a) << 8;
  573 #ifdef TEKEN_UTF8
  574         scteken_get_cp437(&c, &attr);
  575 #endif /* TEKEN_UTF8 */
  576         ch = c;
  577 
  578         map = scp->sc->scr_map;
  579 
  580         if (r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize) {
  581                 /* Single contiguous region to fill. */
  582                 sc_vtb_erase(&scp->vtb, r->tr_begin.tp_row * scp->xsize,
  583                     (r->tr_end.tp_row - r->tr_begin.tp_row) * scp->xsize,
  584                     map[ch], attr);
  585         } else {
  586                 /* Fill display line by line. */
  587                 width = r->tr_end.tp_col - r->tr_begin.tp_col;
  588 
  589                 for (row = r->tr_begin.tp_row; row < r->tr_end.tp_row; row++) {
  590                         sc_vtb_erase(&scp->vtb, r->tr_begin.tp_row *
  591                             scp->xsize + r->tr_begin.tp_col,
  592                             width, map[ch], attr);
  593                 }
  594         }
  595 
  596         /* Mark begin and end positions to be refreshed. */
  597         mark_for_update(scp,
  598             r->tr_begin.tp_row * scp->xsize + r->tr_begin.tp_col);
  599         mark_for_update(scp,
  600             (r->tr_end.tp_row - 1) * scp->xsize + (r->tr_end.tp_col - 1));
  601         sc_remove_cutmarking(scp);
  602 }
  603 
  604 static void
  605 scteken_copy(void *arg, const teken_rect_t *r, const teken_pos_t *p)
  606 {
  607         scr_stat *scp = arg;
  608         unsigned int width;
  609         int src, dst, end;
  610 
  611 #ifndef SC_NO_HISTORY
  612         /*
  613          * We count a line of input as history if we perform a copy of
  614          * one whole line upward. In other words: if a line of text gets
  615          * overwritten by a rectangle that's right below it.
  616          */
  617         if (scp->history != NULL &&
  618             r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize &&
  619             r->tr_begin.tp_row == p->tp_row + 1) {
  620                 sc_hist_save_one_line(scp, p->tp_row);
  621         }
  622 #endif
  623 
  624         if (r->tr_begin.tp_col == 0 && r->tr_end.tp_col == scp->xsize) {
  625                 /* Single contiguous region to copy. */
  626                 sc_vtb_move(&scp->vtb, r->tr_begin.tp_row * scp->xsize,
  627                     p->tp_row * scp->xsize,
  628                     (r->tr_end.tp_row - r->tr_begin.tp_row) * scp->xsize);
  629         } else {
  630                 /* Copy line by line. */
  631                 width = r->tr_end.tp_col - r->tr_begin.tp_col;
  632 
  633                 if (p->tp_row < r->tr_begin.tp_row) {
  634                         /* Copy from top to bottom. */
  635                         src = r->tr_begin.tp_row * scp->xsize +
  636                             r->tr_begin.tp_col;
  637                         end = r->tr_end.tp_row * scp->xsize +
  638                             r->tr_end.tp_col;
  639                         dst = p->tp_row * scp->xsize + p->tp_col;
  640 
  641                         while (src < end) {
  642                                 sc_vtb_move(&scp->vtb, src, dst, width);
  643 
  644                                 src += scp->xsize;
  645                                 dst += scp->xsize;
  646                         }
  647                 } else {
  648                         /* Copy from bottom to top. */
  649                         src = (r->tr_end.tp_row - 1) * scp->xsize +
  650                             r->tr_begin.tp_col;
  651                         end = r->tr_begin.tp_row * scp->xsize +
  652                             r->tr_begin.tp_col;
  653                         dst = (p->tp_row + r->tr_end.tp_row -
  654                             r->tr_begin.tp_row - 1) * scp->xsize + p->tp_col;
  655 
  656                         while (src >= end) {
  657                                 sc_vtb_move(&scp->vtb, src, dst, width);
  658 
  659                                 src -= scp->xsize;
  660                                 dst -= scp->xsize;
  661                         }
  662                 }
  663         }
  664 
  665         /* Mark begin and end positions to be refreshed. */
  666         mark_for_update(scp,
  667             p->tp_row * scp->xsize + p->tp_col);
  668         mark_for_update(scp,
  669             (p->tp_row + r->tr_end.tp_row - r->tr_begin.tp_row - 1) *
  670             scp->xsize +
  671             (p->tp_col + r->tr_end.tp_col - r->tr_begin.tp_col - 1));
  672         sc_remove_cutmarking(scp);
  673 }
  674 
  675 static void
  676 scteken_param(void *arg, int cmd, unsigned int value)
  677 {
  678         static int cattrs[] = {
  679                 0,                                      /* block */
  680                 CONS_BLINK_CURSOR,                      /* blinking block */
  681                 CONS_CHAR_CURSOR,                       /* underline */
  682                 CONS_CHAR_CURSOR | CONS_BLINK_CURSOR,   /* blinking underline */
  683                 CONS_RESET_CURSOR,                      /* reset to default */
  684                 CONS_HIDDEN_CURSOR,                     /* hide cursor */
  685         };
  686         static int tcattrs[] = {
  687                 CONS_RESET_CURSOR | CONS_LOCAL_CURSOR,  /* normal */
  688                 CONS_HIDDEN_CURSOR | CONS_LOCAL_CURSOR, /* invisible */
  689         };
  690         scr_stat *scp = arg;
  691         int flags, n, v0, v1, v2;
  692 
  693         switch (cmd) {
  694         case TP_SETBORDER:
  695                 scp->border = value & 0xff;
  696                 if (scp == scp->sc->cur_scp)
  697                         sc_set_border(scp, scp->border);
  698                 break;
  699         case TP_SETGLOBALCURSOR:
  700                 n = value & 0xff;
  701                 v0 = (value >> 8) & 0xff;
  702                 v1 = (value >> 16) & 0xff;
  703                 v2 = (value >> 24) & 0xff;
  704                 switch (n) {
  705                 case 1: /* flags only */
  706                         if (v0 < sizeof(cattrs) / sizeof(cattrs[0]))
  707                                 v0 = cattrs[v0];
  708                         else /* backward compatibility */
  709                                 v0 = cattrs[v0 & 0x3];
  710                         sc_change_cursor_shape(scp, v0, -1, -1);
  711                         break;
  712                 case 2:
  713                         v2 = 0;
  714                         v0 &= 0x1f;     /* backward compatibility */
  715                         v1 &= 0x1f;
  716                         /* FALL THROUGH */
  717                 case 3: /* base and height */
  718                         if (v2 == 0)    /* count from top */
  719                                 sc_change_cursor_shape(scp, -1,
  720                                     scp->font_size - v1 - 1,
  721                                     v1 - v0 + 1);
  722                         else if (v2 == 1) /* count from bottom */
  723                                 sc_change_cursor_shape(scp, -1,
  724                                     v0, v1 - v0 + 1);
  725                         break;
  726                 }
  727                 break;
  728         case TP_SETLOCALCURSOR:
  729                 if (value < sizeof(tcattrs) / sizeof(tcattrs[0]))
  730                         sc_change_cursor_shape(scp, tcattrs[value], -1, -1);
  731                 else if (value == 2) {
  732                         sc_change_cursor_shape(scp,
  733                             CONS_RESET_CURSOR | CONS_LOCAL_CURSOR, -1, -1);
  734                         flags = scp->base_curs_attr.flags ^ CONS_BLINK_CURSOR;
  735                         sc_change_cursor_shape(scp,
  736                             flags | CONS_LOCAL_CURSOR, -1, -1);
  737                 }
  738                 break;
  739         case TP_SHOWCURSOR:
  740                 if (value != 0)
  741                         flags = scp->base_curs_attr.flags & ~CONS_HIDDEN_CURSOR;
  742                 else
  743                         flags = scp->base_curs_attr.flags | CONS_HIDDEN_CURSOR;
  744                 sc_change_cursor_shape(scp, flags | CONS_LOCAL_CURSOR, -1, -1);
  745                 break;
  746         case TP_SWITCHVT:
  747                 sc_switch_scr(scp->sc, value);
  748                 break;
  749         case TP_SETBELLPD:
  750                 scp->bell_pitch = TP_SETBELLPD_PITCH(value);
  751                 scp->bell_duration = TP_SETBELLPD_DURATION(value);
  752                 break;
  753         case TP_MOUSE:
  754                 scp->mouse_level = value;
  755                 break;
  756         }
  757 }
  758 
  759 static void
  760 scteken_respond(void *arg, const void *buf, size_t len)
  761 {
  762         scr_stat *scp = arg;
  763 
  764         sc_respond(scp, buf, len, 0);
  765 }

Cache object: d1f376f0003d3ee411e876ca9ca6c582


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