void analyze_method(std::string method_name, double initial_step, int iterations_count, std::function<double(double, double, double)> calc_next) {
std::cout << method_name << std::endl;
print_hline();
double step = initial_step;
for (int i = 0; i < iterations_count; ++i, step /= 2) {
std::cout << "Step: " << step << std::endl;
double cur_value = LEFT_END_VALUE;
for (double x = SEGMENT_LEFT_END; x < SEGMENT_RIGHT_END - EPS; x += step) {
std::cout << std::fixed << std::setprecision(10) << cur_value << std::endl;
cur_value = calc_next(step, x, cur_value);
}
std::cout << std::fixed << std::setprecision(10) << cur_value << std::endl;
}
print_hline();
}
/**
* Get list of supported cameras, walk through it and create some output.
*/
int
main (int argc, char *argv[])
{
CameraAbilitiesList *al;
int i;
int count;
const char *fmt_str = NULL;
parse_command_line (argc, argv);
if (do_debug) {
gettimeofday (&glob_tv_zero, NULL);
CHECK (gp_log_add_func (GP_LOG_ALL, debug_func, NULL));
gp_log (GP_LOG_DEBUG, "main", "test-camera-list start");
}
CHECK (gp_abilities_list_new (&al));
CHECK (gp_abilities_list_load (al, NULL));
count = gp_abilities_list_count (al);
if (count < 0) {
printf("gp_abilities_list_count error: %d\n", count);
return(1);
} else if (count == 0) {
/* Copied from gphoto2-abilities-list.c gp_abilities_list_load() */
const char *camlib_env = getenv(CAMLIBDIR_ENV);
const char *camlibs = (camlib_env != NULL)?camlib_env:CAMLIBS;
printf("no camera drivers (camlibs) found in camlib dir:\n"
" CAMLIBS='%s', default='%s', used=%s\n",
camlib_env?camlib_env:"(null)", CAMLIBS,
(camlib_env!=NULL)?"CAMLIBS":"default");
return(1);
}
/* Set output format for file body,
* and print opening part of output file. */
switch (format) {
case FMT_CSV:
fmt_str = "%d,%s,%s,%s\n";
break;
case FMT_FLAT_TEXT:
fmt_str = "%3d|%-20s|%-20s|%s\n";
break;
case FMT_HEADED_TEXT:
fmt_str = "%3d|%-20s|%-20s|%s\n";
break;
case FMT_XML:
fmt_str = " <camera name=\"%4$s\" entry_number=\"%1$d\">\n"
" <camlib-name value=\"%2$s\"/>\n"
" <driver-name value=\"%3$s\"/>\n"
" </camera>\n";
printf("<?xml version=\"%s\" encoding=\"%s\"?>\n"
"<camera-list camera-count=\"%d\">\n",
"1.0", "us-ascii", count);
break;
case FMT_FLAT_CAMLIBS:
fmt_str = "%2$-28s %3$s\n";
break;
case FMT_COUNT:
printf("%d\n", count);
return(0);
break;
}
/* For each camera in the list, add a text snippet to the
* output file. */
for (i = 0; i < count; i++) {
CameraAbilities abilities;
const char *camlib_basename;
CHECK (gp_abilities_list_get_abilities (al, i, &abilities));
camlib_basename = path_basename(abilities.library);
switch (format) {
case FMT_HEADED_TEXT:
if ( ((i%25)== 0) &&
( (i==0) || ((count-i) > 5) ) ) {
print_hline();
print_headline();
print_hline();
}
break;
case FMT_FLAT_CAMLIBS:
break;
case FMT_XML:
break;
case FMT_CSV:
break;
case FMT_FLAT_TEXT:
break;
case FMT_COUNT:
break;
}
printf(fmt_str,
i+1,
camlib_basename,
abilities.id,
abilities.model);
}
/* Print closing part of output file. */
switch (format) {
case FMT_HEADED_TEXT:
print_hline();
print_headline();
print_hline();
break;
case FMT_FLAT_CAMLIBS:
break;
case FMT_XML:
printf("</camera-list>\n");
break;
case FMT_CSV:
break;
case FMT_FLAT_TEXT:
break;
case FMT_COUNT:
break;
}
CHECK (gp_abilities_list_free (al));
return (0);
}