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31 * Author: Thomas E. Dickey <dickey@clark.net> 1999
33 * $Id: dots.c,v 1.40 2020/05/29 23:04:02 tom Exp $
35 * A simple demo of the terminfo interface.
38 #include <test.priv.h>
44 static bool interrupted = FALSE;
45 static long total_chars = 0;
46 static time_t started;
55 if (write(STDOUT_FILENO, &tmp, (size_t) 1) == -1)
66 if (VALID_STRING(s)) {
76 outs(exit_attribute_mode);
77 if (!outs(orig_colors))
83 fprintf(stderr, "\n\n%ld total cells, rate %.2f/sec\n",
85 ((double) (total_chars) / (double) (time((time_t *) 0) - started)));
89 onsig(int n GCC_UNUSED)
97 long r = (rand() & 077777);
98 return ((double) r / 32768.);
102 get_number(NCURSES_CONST char *cap, int map)
106 int check = tigetnum(cap);
116 static const char *msg[] =
118 "Usage: dots [options]"
121 ," -T TERM override $TERM"
123 ," -e allow environment $LINES / $COLUMNS"
125 ," -f use tigetnum rather than <term.h> mapping"
126 ," -m SIZE set margin (default: 2)"
127 ," -r SECS self-interrupt/exit after specified number of seconds"
128 ," -s MSECS delay 1% of the time (default: 1 msecs)"
132 for (n = 0; n < SIZEOF(msg); n++)
133 fprintf(stderr, "%s\n", msg[n]);
135 ExitProgram(EXIT_FAILURE);
153 while ((ch = getopt(argc, argv, "T:efm:r:s:")) != -1) {
156 need = 6 + strlen(optarg);
157 my_env = malloc(need);
158 _nc_SPRINTF(my_env, _nc_SLIMIT(need) "TERM=%s", optarg);
170 m_option = atoi(optarg);
173 r_option = atoi(optarg);
176 s_option = atoi(optarg);
184 SetupAlarm(r_option);
185 InitAndCatch(setupterm((char *) 0, 1, (int *) 0), onsig);
187 srand((unsigned) time(0));
190 outs(cursor_invisible);
192 #define GetNumber(ln,sn) get_number(f_option ? #sn : 0, ln)
193 my_colors = GetNumber(max_colors, colors);
195 if (!VALID_STRING(set_a_foreground)
196 || !VALID_STRING(set_a_background)
197 || (!VALID_STRING(orig_colors) && !VALID_STRING(orig_pair)))
201 r = (double) (GetNumber(lines, lines) - (m_option * 2));
202 c = (double) (GetNumber(columns, cols) - (m_option * 2));
203 started = time((time_t *) 0);
205 while (!interrupted) {
206 int x = (int) (c * ranf()) + m_option;
207 int y = (int) (r * ranf()) + m_option;
208 int p = (ranf() > 0.9) ? '*' : ' ';
210 tputs(tparm3(cursor_address, y, x), 1, outc);
212 int z = (int) (ranf() * my_colors);
214 tputs(tparm2(set_a_foreground, z), 1, outc);
216 tputs(tparm2(set_a_background, z), 1, outc);
220 } else if (VALID_STRING(exit_attribute_mode)
221 && VALID_STRING(enter_reverse_mode)) {
222 if (ranf() <= 0.01) {
225 : exit_attribute_mode);
235 ExitProgram(EXIT_SUCCESS);
239 main(int argc GCC_UNUSED,
240 char *argv[]GCC_UNUSED)
242 fprintf(stderr, "This program requires terminfo\n");