The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/teken/teken_subr_compat.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    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  * $FreeBSD: releng/12.0/sys/teken/teken_subr_compat.h 332297 2018-04-08 19:23:50Z phk $
   29  */
   30 
   31 static void
   32 teken_subr_cons25_set_border(const teken_t *t, unsigned int c)
   33 {
   34 
   35         teken_funcs_param(t, TP_SETBORDER, c);
   36 }
   37 
   38 static void
   39 teken_subr_cons25_set_global_cursor_shape(const teken_t *t, unsigned int ncmds,
   40     const unsigned int cmds[])
   41 {
   42         unsigned int code, i;
   43 
   44         /*
   45          * Pack the args to work around API deficiencies.  This requires
   46          * knowing too much about the low level to be fully compatible.
   47          * Returning when ncmds > 3 is necessary and happens to be
   48          * compatible.  Discarding high bits is necessary and happens to
   49          * be incompatible only for invalid args when ncmds == 3.
   50          */
   51         if (ncmds > 3)
   52                 return;
   53         code = 0;
   54         for (i = ncmds; i > 0; i--)
   55                 code = (code << 8) | (cmds[i - 1] & 0xff);
   56         code = (code << 8) | ncmds;
   57         teken_funcs_param(t, TP_SETGLOBALCURSOR, code);
   58 }
   59 
   60 static void
   61 teken_subr_cons25_set_local_cursor_type(const teken_t *t, unsigned int type)
   62 {
   63 
   64         teken_funcs_param(t, TP_SETLOCALCURSOR, type);
   65 }
   66 
   67 static const teken_color_t cons25_colors[8] = { TC_BLACK, TC_BLUE,
   68     TC_GREEN, TC_CYAN, TC_RED, TC_MAGENTA, TC_BROWN, TC_WHITE };
   69 
   70 static void
   71 teken_subr_cons25_set_default_background(teken_t *t, unsigned int c)
   72 {
   73 
   74         t->t_defattr.ta_bgcolor = cons25_colors[c % 8] | (c & 8);
   75         t->t_curattr.ta_bgcolor = cons25_colors[c % 8] | (c & 8);
   76 }
   77 
   78 static void
   79 teken_subr_cons25_set_default_foreground(teken_t *t, unsigned int c)
   80 {
   81 
   82         t->t_defattr.ta_fgcolor = cons25_colors[c % 8] | (c & 8);
   83         t->t_curattr.ta_fgcolor = cons25_colors[c % 8] | (c & 8);
   84 }
   85 
   86 static const teken_color_t cons25_revcolors[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
   87 
   88 void
   89 teken_get_defattr_cons25(const teken_t *t, int *fg, int *bg)
   90 {
   91 
   92         *fg = cons25_revcolors[teken_256to8(t->t_defattr.ta_fgcolor)];
   93         if (t->t_defattr.ta_format & TF_BOLD)
   94                 *fg += 8;
   95         *bg = cons25_revcolors[teken_256to8(t->t_defattr.ta_bgcolor)];
   96 }
   97 
   98 static void
   99 teken_subr_cons25_switch_virtual_terminal(const teken_t *t, unsigned int vt)
  100 {
  101 
  102         teken_funcs_param(t, TP_SWITCHVT, vt);
  103 }
  104 
  105 static void
  106 teken_subr_cons25_set_bell_pitch_duration(const teken_t *t, unsigned int pitch,
  107     unsigned int duration)
  108 {
  109 
  110         teken_funcs_param(t, TP_SETBELLPD, (pitch << 16) |
  111             (duration & 0xffff));
  112 }
  113 
  114 static void
  115 teken_subr_cons25_set_graphic_rendition(teken_t *t, unsigned int cmd,
  116     unsigned int param)
  117 {
  118 
  119         (void)param;
  120         switch (cmd) {
  121         case 0: /* Reset. */
  122                 t->t_curattr = t->t_defattr;
  123                 break;
  124         default:
  125                 teken_printf("unsupported attribute %u\n", cmd);
  126         }
  127 }
  128 
  129 static void
  130 teken_subr_cons25_set_terminal_mode(teken_t *t, unsigned int mode)
  131 {
  132 
  133         switch (mode) {
  134         case 0: /* Switch terminal to xterm. */
  135                 t->t_stateflags &= ~TS_CONS25;
  136                 break;
  137         case 1: /* Switch terminal to cons25. */
  138                 t->t_stateflags |= TS_CONS25;
  139                 break;
  140         default:
  141                 break;
  142         }
  143 }
  144 
  145 #if 0
  146 static void
  147 teken_subr_vt52_decid(teken_t *t)
  148 {
  149         const char response[] = "\x1B/Z";
  150 
  151         teken_funcs_respond(t, response, sizeof response - 1);
  152 }
  153 #endif

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