1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 /*LINTLIBRARY*/ 41 42 #include <stdlib.h> 43 #include <sys/types.h> 44 #include "curses_inc.h" 45 46 /* 47 * Figure out (roughly) how much each of these capabilities costs. 48 * In the parameterized cases, we just take a typical case and 49 * use that value. This is done only once at startup, since it 50 * would be too expensive for intensive use. 51 */ 52 53 static int _cost_fn(char *, int); 54 55 static short offsets[] = { 56 52, /* insert_character, */ 57 21, /* delete_character, */ 58 12, /* cursor_home, */ 59 18, /* cursor_to_ll, */ 60 14, /* cursor_left, */ 61 17, /* cursor_right, */ 62 11, /* cursor_down, */ 63 19, /* cursor_up, */ 64 2, /* carriage_return, */ 65 134, /* tab, */ 66 0, /* back_tab, */ 67 6, /* clr_eol, */ 68 269, /* clr_bol, */ 69 #define FIRST_LOOP 13 70 108, /* parm_ich, */ 71 105, /* parm_dch, */ 72 111, /* parm_left_cursor, */ 73 114, /* parm_up_cursor, */ 74 107, /* parm_down_cursor, */ 75 112, /* parm_right_cursor, */ 76 #define SECOND_LOOP 19 77 }; 78 79 void 80 _init_costs(void) 81 { 82 short *costptr = &(SP->term_costs.icfixed); 83 char **str_array = (char **) cur_strs; 84 int i = 0; 85 char save_xflag = xon_xoff; 86 87 xon_xoff = 0; 88 /* 89 * This next block of code is actually correct in that it takes into 90 * account many things that wrefresh has to keep figuring in the function 91 * _useidch. Wrefresh MUST be changed (in the words of Tony Hansen) !!! 92 * 93 * Wrefresh has been changed (in my words -Phong Vo) !!!! 94 */ 95 *costptr++ = ((enter_insert_mode) && (exit_insert_mode)) ? 96 _cost_fn(enter_insert_mode, 0) + _cost_fn(exit_insert_mode, 0) : 0; 97 98 *costptr++ = ((enter_delete_mode) && (exit_delete_mode)) ? 99 _cost_fn(enter_delete_mode, 0) + _cost_fn(exit_delete_mode, 0) : 0; 100 101 while (i < FIRST_LOOP) 102 *costptr++ = _cost_fn(str_array[offsets[i++]], 1); 103 104 while (i < SECOND_LOOP) 105 *costptr++ = _cost_fn(tparm_p1(str_array[offsets[i++]], 10), 1); 106 107 *costptr++ = _cost_fn(tparm_p2(cursor_address, 8, 10), 1); 108 *costptr++ = _cost_fn(tparm_p1(row_address, 8), 1); 109 110 xon_xoff = save_xflag; 111 #ifdef DEBUG 112 if (outf) { 113 fprintf(outf, "icfixed %d=%d+%d\n", _COST(icfixed), 114 _cost_fn(enter_insert_mode, 0), 115 _cost_fn(exit_insert_mode, 0)); 116 fprintf(outf, "from ich1 %x '%s' %d\n", insert_character, 117 insert_character, _cost_fn(insert_character, 1)); 118 fprintf(outf, "ip %x '%s' %d\n", insert_padding, 119 insert_padding, _cost_fn(insert_padding, 1)); 120 fprintf(outf, "dcfixed %d\n", _COST(dcfixed)); 121 } 122 #endif /* DEBUG */ 123 /*FALLTHROUGH*/ 124 } 125 126 static int counter = 0; 127 int 128 /* ARGSUSED */ 129 _countchar(char dummy) 130 { 131 counter++; 132 return (0); 133 } 134 135 /* 136 * Figure out the _COST in characters to print this string. 137 * Due to padding, we can't just use strlen, so instead we 138 * feed it through tputs and trap the results. 139 * Even if the terminal uses xon/xoff handshaking, count the 140 * pad chars here since they estimate the real time to do the 141 * operation, useful in calculating costs. 142 */ 143 144 static int 145 _cost_fn(char *str, int affcnt) 146 { 147 if (str == NULL) 148 return (LARGECOST); 149 counter = 0; 150 (void) tputs(str, affcnt, _countchar); 151 return (counter); 152 } 153