From 51675360e87297cbf4423a1b12ae0c6a06a92158 Mon Sep 17 00:00:00 2001 From: Nicolas Schodet Date: Fri, 27 Sep 2019 23:18:00 +0200 Subject: Now camicro, the microscope camera viewer --- options.c | 150 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 options.c (limited to 'options.c') diff --git a/options.c b/options.c new file mode 100644 index 0000000..80c49ed --- /dev/null +++ b/options.c @@ -0,0 +1,150 @@ +/* Camicro - Microscope camera viewer. + * + * Copyright (C) 2019 Nicolas Schodet + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Contact : + * Web: http://ni.fr.eu.org/ + * Email: + */ +#define _GNU_SOURCE +#include +#include +#include +#include +#include +#include + +#include "options.h" + +/* Report command line usage, optionally prefixed with an error message. */ +static void +usage(int status, const char *msg) +{ + if (msg) + fprintf(stderr, "%s: %s", program_invocation_short_name, msg); + fprintf(status == EXIT_SUCCESS ? stdout : stderr, + "usage: %s [options] [FILE]\n" + "\n" + "Microscope camera viewer.\n" + "\n" + "positional arguments:\n" + " FILE output file pattern (default: out%%02d.png" + " or out for raw output)\n" + "\n" + "optional arguments:\n" + " -h, --help show this help message and exit\n" + " -w, --width VALUE image width (512, 1024 or 2048," + " default: 1024)\n" + " -e, --exposure MS exposure value (1 to 5000," + " default: 100)\n" + " -g, --gain VALUE gain value (0.33 to 42.66," + " default: 1)\n" + " -n, --count N number of image to take" + " (default: live video)\n" + " -r, --raw save raw images\n" + , program_invocation_name); + exit(status); +} + +void +options_parse(int argc, char **argv, struct options *options) +{ + options->width = 1024; + options->height = 768; + options->exposure_ms = 100.0; + options->gain = 1.0; + options->count = 0; + options->raw = false; + options->out = NULL; + char *tail; + while (1) { + static struct option long_options[] = { + { "help", no_argument, 0, 'h' }, + { "width", required_argument, 0, 'w' }, + { "exposure", required_argument, 0, 'e' }, + { "gain", required_argument, 0, 'g' }, + { "count", required_argument, 0, 'n' }, + { "raw", required_argument, 0, 'r' }, + { NULL }, + }; + int option_index = 0; + int c = getopt_long(argc, argv, "hw:e:g:n:r", long_options, + &option_index); + if (c == -1) + break; + switch (c) { + case 'h': + usage(EXIT_SUCCESS, NULL); + break; + case 'w': + if (strcmp(optarg, "512") == 0) { + options->width = 512; + options->height = 384; + } else if (strcmp(optarg, "1024") == 0) { + options->width = 1024; + options->height = 768; + } else if (strcmp(optarg, "2048") == 0) { + options->width = 2048; + options->height = 1536; + } else + usage(EXIT_FAILURE, "bad width value"); + break; + case 'e': + errno = 0; + options->exposure_ms = strtod(optarg, &tail); + if (*tail != '\0' || errno || options->exposure_ms < 1 + || options->exposure_ms > 5000) + usage(EXIT_FAILURE, "bad exposure value"); + break; + case 'g': + errno = 0; + options->gain = strtod(optarg, &tail); + if (*tail != '\0' || errno || options->gain <= 0.0 + || options->gain >= 43.0) + usage(EXIT_FAILURE, "bad gain value"); + break; + case 'n': + errno = 0; + options->count = strtoul(optarg, &tail, 10); + if (*tail != '\0' || errno) + usage(EXIT_FAILURE, "bad count value"); + break; + case 'r': + options->raw = true; + break; + case '?': + usage(EXIT_FAILURE, NULL); + break; + default: + abort(); + } + } + if (optind < argc) + options->out = argv[optind++]; + if (optind < argc) + usage(EXIT_FAILURE, "too many arguments"); + if (!options->out) + options->out = options->raw ? "out" : "out%02d.png"; + if (!options->raw) + { + int argtypes[1]; + int formats = parse_printf_format(options->out, 1, argtypes); + if (formats != 1 || argtypes[0] != PA_INT) + usage(EXIT_FAILURE, "bad file pattern, use one %d"); + } +} + -- cgit v1.2.3