xltwavplay.c

使用在嵌入式linux平台或pc机上的wave文件录制和播放软件

/* $Header: /home/cvs/wavplay/xltwavplay.c,v 1.2 1999/12/04 00:01:20 wwg Exp $
 * Warren W. Gay VE3WWG		Thu Feb 13 21:11:22 1997
 *
 * 	X LessTif WAV Play :
 * 
 * 	Copyright (C) 1997  Warren W. Gay VE3WWG
 * 
 * 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 version 2 of the License.
 * 
 * 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 (see enclosed file COPYING).
 * 
 * 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.
 * 
 * Send correspondance to:
 * 
 * 	Warren W. Gay VE3WWG
 * 
 * Email:
 *	[e-mail]
 *	[e-mail]
 *
 * $Log: xltwavplay.c,v $
 * Revision 1.2  1999/12/04 00:01:20  wwg
 * Implement wavplay-1.4 release changes
 *
 * Revision 1.1.1.1  1999/11/21 19:50:56  wwg
 * Import wavplay-1.3 into CVS
 *
 * Revision 1.4  1997/04/17 23:43:08  wwg
 * Added #include <errno.h> for 1.0pl2 fix.
 *
 * Revision 1.3  1997/04/17 00:41:56  wwg
 * Fixed to use member name .Errno vs original dangerous
 * .errno reference. This presents a problem on platforms
 * that make extern errno thread safe, but defining errno
 * as a macro.
 *
 * Revision 1.2  1997/04/15 02:13:35  wwg
 * A number of small pre-release fixes.
 *
 * Revision 1.1  1997/04/13 23:59:08  wwg
 * Initial revision
 */
#define TIMER1_MS	150		/* TimerProc1() */

#define LessTif_Bug_radioBehavior 1	/* XmNradioBehavior busted in RowColumn widget (T/F) */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
#include <time.h>
#include <signal.h>
#include <string.h>
#include <getopt.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <assert.h>

#ifndef NO_EDITRES
#include <X11/Xmu/Editres.h>
#endif

#include <Xm/Xm.h>
#include <Xm/MainW.h>
#include <Xm/Form.h>
#include <Xm/PushB.h>
#include <Xm/ArrowB.h>
#include <Xm/CascadeB.h>
#include <Xm/Text.h>
#include <Xm/Label.h>
#include <Xm/ToggleB.h>
#include <Xm/Separator.h>
#include <Xm/MessageB.h>
#include <Xm/ScrollBar.h>
#include <Xm/RowColumn.h>
#include <Xm/FileSB.h>
#include <Xm/List.h>
#include <Xm/Frame.h>

#include "xmsprint.h"
#include "xltwavplay.h"
#include "wavplay.h"
#include "client.h"

static char * const rcsid[] = {
	"@(#)xltwavplay.c $Revision: 1.2 $",
	_wavplay_h_,
	"@(#)xltwavplay version " WAVPLAY_VERSION
};

#ifndef NO_EDITRES
extern void _XEditResCheckmessages(void);		/* EditRes event handler */
#endif

extern pid_t svrPID;					/* Process ID of the wavplay server */
extern int svrIPC;					/* Message Queue ID for the wavplay server */
int cmdopt_x = 0;					/* This is controlled by bOptionsDebug */
int bRecorded = 0;					/* True after first record event */

char *env_WAVPLAYPATH = WAVPLAYPATH;			/* Default pathname of executable /usr/local/bin/wavplay */
char *env_AUDIODEV = AUDIODEV;				/* Default compiled in audio device */
unsigned long env_AUDIOLCK = AUDIOLCK;			/* Default compiled in locking semaphore */

/* FALLBACK RESOURCES : */

static String fallback_resources[] = {
#ifndef INSTALLED_RESOURCE_FILE				/* if not installed as file xltwavplay use.. */
	"xltwavplay.geometry: +350+250",
	"xltwavplay*background: grey70",
	"xltwavplay*foreground: black",

	"xltwavplay.*fontList: *helvetica-bold-r-normal--14*",

	"xltwavplay.main.menubar.spacing: 10",
	"xltwavplay.main.menubar.filemenucascade.labelString: File",
	"xltwavplay*filemenu.select_files.labelString: Select Files..",
	"xltwavplay*filemenu.exit.labelString: Exit",

	"xltwavplay*filemenu.save_as.labelString: Save " RECORD_PATH " As..",

	"xltwavplay.main.menubar.optsmenucascade.labelString: Options",
	"xltwavplay*optsmenu.debug.labelString: Debug Mode",
	"xltwavplay*optsmenu.sem_reset.labelString: Reset locking semaphores",

	"xltwavplay.main.menubar.helpmenucascade.labelString: Help",
	"xltwavplay*helpmenu.about.labelString: About",

	/* Copyright notice: adjust font to suit */
	"xltwavplay*AboutDlg.fontList: -adobe-helvetica-medium-r-normal-*-10-100-75-75-p-*-iso8859-1",

	"xltwavplay*FilesDlg.dialogTitle: Select file(s) to play",
	"xltwavplay*FilesDlg.pattern: *.wav",
	"xltwavplay*FilesDlg.fileTypeMask: FILE_REGULAR",

	"xltwavplay*SaveAsDlg.dialogTitle: Select a file name to write",
	"xltwavplay*SaveAsDlg.pattern: *.wav",
	"xltwavplay*SaveAsDlg.fileTypeMask: FILE_REGULAR",

	"xltwavplay*listbox_label.labelString: Selection:",

	"xltwavplay*FileLbl0.labelString: File:",
	"xltwavplay*TypeLbl0.labelString: Type:",
	"xltwavplay*DateLbl0.labelString: Date:",
	"xltwavplay*SizeLbl0.labelString: Size:",
	"xltwavplay*SamplingRateLbl0.labelString: Sampling Rate:",
	"xltwavplay*SamplesLbl0.labelString: Samples:",
	"xltwavplay*TimeLbl0.labelString: Duration:",
        "xltwavplay*TimeDisplayLbl0.labelString: SMPTE Time:",

	"xltwavplay*FileLbl1.labelString: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
	"xltwavplay*FileLbl1.foreground: black",
	"xltwavplay*TypeLbl1.labelString: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
	"xltwavplay*TypeLbl1.foreground: black",
	"xltwavplay*DateLbl1.labelString: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
	"xltwavplay*DateLbl1.foreground: black",
	"xltwavplay*SizeLbl1.labelString: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
	"xltwavplay*SizeLbl1.foreground: black",
	"xltwavplay*SamplingRateLbl1.labelString: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
	"xltwavplay*SamplingRateLbl1.foreground: black",
	"xltwavplay*SamplesLbl1.labelString: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
	"xltwavplay*SamplesLbl1.foreground: black",
	"xltwavplay*TimeLbl1.labelString: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
	"xltwavplay*TimeLbl1.foreground: black",
        "xltwavplay*TimeDisplayLbl1.labelString: 00:00:00.00",

	"xltwavplay*Play.labelString: Play",
	"xltwavplay*StopPlay.labelString: Stop",
	"xltwavplay*Pause.labelString: Pause",
	"xltwavplay*Restore.labelString: Restore",

	"xltwavplay*Record.labelString: Record",
	"xltwavplay*Stop.labelString: Stop",

	"xltwavplay*8Bit.labelString: 8 bit",
	"xltwavplay*16Bit.labelString: 16 bit",

	"xltwavplay*rate_lbl.labelString: Sampling Rate:",

	"xltwavplay*rec_rate_tgl.labelString: Record Sampling Rate:",
#endif /* ndef INSTALLED_RESOURCE_FILE */
	NULL
};

#define NoTMR	0UL					/* Value for "no timer" */

static void SampleRateChg_Show(int newValue);

/*
 * WIDGETS:
 */
Widget wParent;						/* Parent shell widget */
XtAppContext aContext;					/* Application context */

Widget wMain;						/* Main widget */
Widget wMenuBar;					/* Main menu bar */
Widget wFileMenuCascade;				/* Cascade button for File Menu */
Widget wFileMenu;					/* File menu itself */
Widget wSelect;						/* File->Select */
Widget wSaveAs;						/* File->SaveAs.. */
Widget wExit;						/* File->Exit */

Widget wOptionsMenuCascade;
Widget wOptionsMenu;
Widget wOptions_DebugTgl;
Boolean bOptionsDebug = False;				/* Debug mode when True */
Widget wOptions_SemReset;				/* Options->Semaphore Reset */

Widget wHelpMenuCascade;				/* Cascade button for Help Menu */
Widget wHelpMenu;					/* Help menu itself */
Widget wAbout;						/* Help->About */

Widget wErrDlg;						/* Error Dialog Box */
XmString sErrDlgTitle;					/* Title for the Error Dialog Box */

Widget wAboutDlg;					/* About Dialog Box */
XmString sAboutDlgTitle;				/* About Dialog Title String */
XmString sAboutDlgMessage;				/* About Dialog message and copyright */

Widget wFilesDlg;					/* File selection dialog */
Widget wSaveAsDlg;					/* File "Save As..." dialog */

Widget wMainForm;					/* Main form widget */

Widget wLeftRC;						/* Left main Row/Column */
Widget wListFrame;					/* Frame for Selections List Box */
Widget wListForm;					/* Form within Selections List Box */
Widget wSelectionsLbl;					/* Label for Selections List Box */
Widget wSelectionsListBox;				/* The selections List Box */
Widget wTimeFrame;                                     /* Frame for Time control */
Widget wTimeRC;                                                /* Row Col widget for Time control */
Widget wTimeDisplayRC;                                 /* Keeps display next to label */
Widget wTimeDisplayLbl0;                               /* Label for the time */
Widget wTimeDisplayLbl1;                               /* Actual time display */
Widget wTimeScrollBar;                                 /* Time scrollbar */
Widget wRateSBFrame;					/* Frame for the scroll bar */
Widget wRateRC;						/* Row Col widget for Rate scroll bar */
Widget wRateLbl;					/* Label for the scroll bar */
Widget wRateScrollBar;					/* The Sampling Rate Scroll Bar */
int SampRate_value = 0;					/* Current scroll bar value */

Widget wRecRateFrame;					/* The record rate frame */
Widget wRecRateRC;
Widget wRecRateTgl;
Widget wRecRate;
int RecRateTgl_value = 0;

Widget wDetailsFrame;					/* Frame for File Info Details */
Widget wDetailsRC;					/* Horizontal RC for wBotLeftRC* */
Widget wBotLeftRC0;					/* Holds labels File:, Type: etc. */
Widget wFileLbl0;
Widget wTypeLbl0;
Widget wDateLbl0;
Widget wSizeLbl0;
Widget wSamplingRateLbl0;
Widget wSamplesLbl0;
Widget wTimeLbl0;

Widget wBotLeftRC1;					/* Holds labels to right of wBotLeftRC0 */
Widget wFileLbl1;
Widget wTypeLbl1;
Widget wDateLbl1;
Widget wSizeLbl1;
Widget wSamplingRateLbl1;
Widget wSamplesLbl1;
Widget wTimeLbl1;

Widget wRightRC;					/* Right side Row/Column */
Widget wBitsFrame;					/* Frame holding BitsRC */

Widget wBitsRC;						/* RowColumn that holds 8, 12, & 16 bits */

Widget w8BitCB;						/* 8-bit check box */
Widget w16BitCB;					/* 16-bit check box */
int curBits = 0;					/* The current setting */

Widget wPlayFrame;					/* Frame for play buttons */
Widget wPlayRC;						/* RC for play buttons */
Widget wPlayPB;						/* Play push button */
Widget wPausePB;					/* Pause push button */
Widget wStopPlayPB;					/* StopPlay push button */
Widget wRestorePB;					/* Restore push button */

Widget wStereoFrame;					/* Frame for Stereo Toggle */
Widget wStereoCB;					/* Stereo Check Box */

Widget wRecordFrame;
Widget wRecordRC;
Widget wRecordPB;					/* Record push button */
Widget wStopPB;						/* Stop push button */

XmString sRecorded_wav;					/* XmString() of RECORD_PATH */

/* Info required by the time display */
#define SMPTE_FPS 25

typedef struct TimeDisplayInfo {
       UInt32 sampling_rate;
       UInt32 sample_num;
       char sample_info_str[16];
} TimeDisplayInfo;

TimeDisplayInfo time_display;

/* Flag to show when the help text is displayed */
int help_text_showing = 1;

/*
 * This is an internal conveniance routine:
 * In order for EditRes to function, we must register all shell widgets.
 */
#ifndef NO_EDITRES

static void
RegisterShellWidget(Widget w) {
	XtAddEventHandler(w,(EventMask)0,True,_XEditResCheckMessages,NULL);
}

#else

#define RegisterShellWidget(w)				/* No EDITRES facility */

#endif	/* ndef NO_EDITRES */

/*
 * This function initiates the creation of an error dialog with
 * a meaningful error text and an OK button. Note that the dialog
 * box is not operationaly until we return back to the main loop.
 */
static void
ReportError(const char *ErrMsg) {
	XmString s;							/* XmString form of message */

	if ( XtIsManaged(wErrDlg) )
		return;							/* The dialog is already in use */

	/*
	 * Set the Error Dialog message text, and manage it so that it pops up:
	 */
	s = XmStringCreateLtoR((char *)ErrMsg,XmSTRING_DEFAULT_CHARSET);/* We need an XmString */
	XtVaSetValues(wErrDlg,XmNmessageString,s,NULL);			/* Put msg in there */
	XtManageChild(wErrDlg);						/* Make it pop up */
	XmStringFree(s);						/* Release the string */
}

/*
 * Error function to format a message and report it:
 */
static void
v_erf(const char *format,va_list ap) {
	char buf[1024];

	vsprintf(buf,format,ap);			/* Format the message */
	fputs(buf,stderr);				/* Send to stderr */
	fputc('\n',stderr);				/* ..with a newline */
	ReportError(buf);				/* Now popup error message if we can */
}

/*
 * Format an error report:
 */
void
ReportErrorf(const char *format,...) {
	va_list ap;

	va_start(ap,format);				/* Access the arguments list */
	v_erf(format,ap);				/* Go report the error */
	va_end(ap);					/* A formality for stdargs */
}