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xmmix-1.1
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main.c
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1995-07-05
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/*
* xmmix - Motif(tm) Audio Mixer
*
* Copyright (C) 1995 Ti Kan
* E-mail: ti@amb.org
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef LINT
static char *_main_c_ident_ = "@(#)main.c 2.4 95/05/12";
#endif
#include "appenv.h"
#include "resource.h"
#include "widget.h"
#include "mixer.h"
/* Global data */
bool_t exit_flag; /* Flag indicating end of application */
appdata_t app_data; /* Options data */
widgets_t widgets; /* Holder of all widgets */
FILE *errfp = stderr;/* Error message stream */
/***********************
* internal routines *
***********************/
/*
* onsig
* Signal handler. Causes the application to shut down gracefully.
*
* Args:
* sig - The signal number received.
*
* Return:
* Nothing.
*/
STATIC void
onsig(int sig)
{
signal(sig, SIG_IGN);
exit_flag = TRUE;
}
/*
* usage
* Display command line usage syntax
*
* Args:
* argc, argv
*
* Return:
* Nothing.
*/
STATIC void
usage(int argc, char **argv)
{
int i;
fprintf(errfp, "Unknown option:\n");
for (i = 1; i < argc; i++)
fprintf(errfp, "%s ", argv[i]);
fprintf(errfp, "\n\nUsage: %s %s %s %s %s\n",
"[-dev device]",
"[-autoload path]",
"[-exitreset]",
"[-demo]",
"[-debug]",
argv[0]);
fprintf(errfp,
"\nStandard Xt Intrinsics and Motif options are supported.\n");
}
/*
* main
* The main function
*/
void
main(int argc, char **argv)
{
XtAppContext app;
XEvent ev;
/* Initialize variables */
exit_flag = FALSE;
/* Handle some signals */
signal(SIGINT, onsig);
signal(SIGHUP, onsig);
signal(SIGTERM, onsig);
/* Initialize X toolkit */
widgets.toplevel = XtVaAppInitialize(
&app,
"XMmix",
options, XtNumber(options),
&argc, argv,
fallbacks,
XmNmappedWhenManaged, False,
NULL
);
/* Get application options */
XtVaGetApplicationResources(
widgets.toplevel,
(XtPointer) &app_data,
resources,
XtNumber(resources),
NULL
);
/* Check command line for unknown arguments */
if (argc > 1) {
usage(argc, argv);
exit(1);
}
/* Sound driver specific initialization */
mx_init_drv();
/* Initialize widget-related data */
widget_init(&widgets);
/* Initialize mixer hardware */
mx_init_hw(&widgets);
/* Create all widgets */
create_widgets(&widgets);
/* Display widgets */
XtRealizeWidget(widgets.toplevel);
/* Configure resources after realizing widgets */
post_realize_config(&widgets);
/* Register callback routines */
register_callbacks(&widgets);
/* Initialize screen controls */
mx_start(&widgets);
/* Make the main window visible */
XtMapWidget(widgets.toplevel);
/* Event processing loop */
while (!exit_flag) {
XtAppNextEvent(app, &ev);
XtDispatchEvent(&ev);
}
exit(0);
}