add GLUT_window ex

2026-03-20 08:41:02 +03:00 · 2020-12-07 17:06:27 +03:00
parent 257b3f0ebe
commit c790bcde1f
24 changed files with 2349 additions and 7 deletions
--- a/GLUT_window/cmdlnopts.c
+++ b/GLUT_window/cmdlnopts.c
@@ -0,0 +1,97 @@
+/*
+ * This file is part of the opengl project.
+ * Copyright 2020 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include <usefull_macros.h>
+
+#include "cmdlnopts.h"
+
+static int help;
+
+/*
+ * here are global parameters initialisation
+ */
+int verbose_level;
+glob_pars  G;
+
+// default PID filename:
+#define DEFAULT_PIDFILE "/tmp/opengl.pid"
+
+//            DEFAULTS
+// default global parameters
+static glob_pars const Gdefault = {
+    .device = NULL,
+    .pidfile = DEFAULT_PIDFILE,
+    .exptime = NAN,
+    .gain = NAN
+};
+
+/*
+ * Define command line options by filling structure:
+ *  name        has_arg     flag    val     type        argptr              help
+*/
+static myoption cmdlnopts[] = {
+// common options
+    {"help",    NO_ARGS,    NULL,   'h',    arg_int,    APTR(&help),        _("show this help")},
+    {"device",  NEED_ARG,   NULL,   'd',    arg_string, APTR(&G.device),    _("camera device name")},
+    {"pidfile", NEED_ARG,   NULL,   'P',    arg_string, APTR(&G.pidfile),   _("pidfile (default: " DEFAULT_PIDFILE ")")},
+    {"verbose", NO_ARGS,    NULL,   'v',    arg_none,   APTR(&verbose_level), _("verbose level (each 'v' increases it)")},
+    {"camno",   NEED_ARG,   NULL,   'n',    arg_int,    APTR(&G.camno),     _("camera number (if many connected)")},
+    {"exptime", NEED_ARG,   NULL,   'x',    arg_float,  APTR(&G.exptime),   _("exposure time (ms)")},
+    {"gain",    NEED_ARG,   NULL,   'g',    arg_float,  APTR(&G.gain),      _("gain value (dB)")},
+    {"display", NO_ARGS,    NULL,   'D',    arg_int,    APTR(&G.showimage), _("display captured image")},
+    {"nimages", NEED_ARG,   NULL,   'N',    arg_int,    APTR(&G.nimages),   _("number of images to capture")},
+    {"png",     NO_ARGS,    NULL,   'p',    arg_int,    APTR(&G.save_png),  _("save png too")},
+   end_option
+};
+
+/**
+ * Parse command line options and return dynamically allocated structure
+ *      to global parameters
+ * @param argc - copy of argc from main
+ * @param argv - copy of argv from main
+ * @return allocated structure with global parameters
+ */
+glob_pars *parse_args(int argc, char **argv){
+    int i;
+    void *ptr;
+    ptr = memcpy(&G, &Gdefault, sizeof(G)); assert(ptr);
+    size_t hlen = 1024;
+    char helpstring[1024], *hptr = helpstring;
+    snprintf(hptr, hlen, "Usage: %%s [args] [filename prefix]\n\n\tWhere args are:\n");
+    // format of help: "Usage: progname [args]\n"
+    change_helpstring(helpstring);
+    // parse arguments
+    parseargs(&argc, &argv, cmdlnopts);
+    if(help) showhelp(-1, cmdlnopts);
+    if(argc > 0){
+        G.rest_pars_num = argc;
+        G.rest_pars = MALLOC(char *, argc);
+        for (i = 0; i < argc; i++){
+            DBG("Found free parameter %s", argv[i]);
+            G.rest_pars[i] = strdup(argv[i]);
+        }
+    }
+    return &G;
+}
+