common.c

aumix-2.8 源碼下載

/* $Aumix: aumix/src/common.c,v 1.9 2002/10/29 21:27:51 trevor Exp $
 *
 * aumix:  adjust audio mixer
 * copyright (c) 1993, 1996-2002 the authors--see AUTHORS file
 *
 * This file is part of aumix.
 *
 * Aumix 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.
 *
 * Aumix 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
 * aumix; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
 * Suite 330, Boston, MA 02111-1307, USA.
 */

#include "common.h"
#ifdef HAVE_CURSES
#include "curses.h"
#include "gpm-xterm.h"
#endif				/* HAVE_CURSES */
#if defined (HAVE_GTK) || defined (HAVE_GTK1)
#include "gtk.h"
#endif				/* HAVE_GTK || HAVE_GTK1 */
#include "interactive.h"

FILE           *OpenDefaultFile(char *mode);
FILE           *setfile;
char           *save_filename = NULL;	/* name of file for saved settings */
char           *device_filename = "/dev/mixer";	/* name of mixer device file */
unsigned short  setfile_opened = FALSE, setfile_write_perm = FALSE, setfile_read_perm = FALSE;
int             current_dev = 0, mixer_fd = -1, mutelevel[SOUND_MIXER_NRDEVICES], devmask = 0, recmask = 0, recsrc = 0, stereodevs = 0, mutestate = 0, interactive = FALSE;
#ifdef USE_OWN_LABELS
/* This is to ease translation--don't use if this copy of aumix is very old.
 * These labels correspond to the soundcard.h from Linux 2.3.12 or FreeBSD
 * 3.2-19990713-STABLE.  The point of having our own copy of these
 * macros is to make it possible to include translations of them.
 * The danger is that they won't always correspond to the sound
 * driver in the kernel.
 */

/* There's probably not enough left to copyright, but...
 * Copyright by Hannu Savolainen 1993
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

char           *dev_label[SOUND_MIXER_NRDEVICES] =
{
	LOCAL_TEXT_NOOP("Volume  "),
	LOCAL_TEXT_NOOP("Bass    "),
	LOCAL_TEXT_NOOP("Treble  "),
	LOCAL_TEXT_NOOP("Synth   "),
	LOCAL_TEXT_NOOP("PCM     "),
	LOCAL_TEXT_NOOP("Speaker "),
	LOCAL_TEXT_NOOP("Line    "),
	LOCAL_TEXT_NOOP("Mic     "),
	LOCAL_TEXT_NOOP("CD      "),
	LOCAL_TEXT_NOOP("Mix     "),
	LOCAL_TEXT_NOOP("PCM 2   "),
	LOCAL_TEXT_NOOP("Record  "),
	LOCAL_TEXT_NOOP("Input   "),
	LOCAL_TEXT_NOOP("Output  "),
	LOCAL_TEXT_NOOP("Line 1  "),
	LOCAL_TEXT_NOOP("Line 2  "),
	LOCAL_TEXT_NOOP("Line 3  "),
	LOCAL_TEXT_NOOP("Digital1"),
	LOCAL_TEXT_NOOP("Digital2"),
	LOCAL_TEXT_NOOP("Digital3"),
	LOCAL_TEXT_NOOP("Phone In"),
	LOCAL_TEXT_NOOP("PhoneOut"),
	LOCAL_TEXT_NOOP("Video   "),
	LOCAL_TEXT_NOOP("Radio   "),
	LOCAL_TEXT_NOOP("Monitor ")
};
#else
char           *dev_label[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS;
#endif				/* USE_OWN_LABELS */
char           *dev_name[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_NAMES;
/*
   An index into this array gives the device number for the
   corresponding command-line option.
 */
char           *moptindx = "vbtswplmcxWrio123";
char           *mopt;
char           *scheme_name;
extern char    *optarg;
int             usage_ok = 1;

int             main(int argc, char *argv[])
{
	int             optn, ii;
#ifdef HAVE_CURSES
	int             setcolors = FALSE;
#endif				/* HAVE_CURSES */
	/* Internationalization */
#ifdef HAVE_NLS
	I18nInitialize();
#endif				/* HAVE_NLS */

	interactive = FALSE;

/* Get options from the command line.  Using numbers as options is deprecated,
   but we do it anyway because it makes sense for line1, line2 and line3.
 */
	while (TRUE) {
		optn = getopt(argc, argv, "hILqSd:f:C:v:b:t:s:w:P:p:l:m:c:x:W:R:r:i:o:1:2:3:");
		if (optn == -1)
			break;
/* Funny, strchr() returns a pointer to char, according to the man page,
   but without this cast egcs warns "assignment makes pointer from integer without
   a cast". */
		if ((mopt = (char *) strchr(moptindx, optn))) {
			usage_ok = 0;
			if (mixer_fd == -1)
				ErrorExitWarn(InitializeMixer(device_filename), 'e');
			ErrorExitWarn(SetShowNoninter(mopt - moptindx), 'e');
		} else {
			usage_ok = 0;
			switch (optn) {
			case 'q':	/* query */
				optarg = "q";
				if (mixer_fd == -1)
					ErrorExitWarn(InitializeMixer(device_filename), 'e');
				for (ii = 0; ii < SOUND_MIXER_NRDEVICES; ii++) {
					if ((1 << ii) & (devmask | recmask))
						ErrorExitWarn(SetShowNoninter(ii), 'e');
				}
				break;
			case 'd':	/* User specified the device file. */
				device_filename = strdup(optarg);
				ErrorExitWarn(InitializeMixer(device_filename), 'e');
				break;
			case 'f':	/* User specified the save file. */
				save_filename = strdup(optarg);
				break;
#ifdef HAVE_CURSES		/* no color schemes for GTK+ */
			case 'C':	/* User specified the color scheme. */
				scheme_name = strdup(optarg);
				setcolors = TRUE;
				interactive = IN_CURSES;
				break;
#endif				/* HAVE_CURSES */
			case 'S':	/* Save to file. */
				if (mixer_fd == -1)
					ErrorExitWarn(InitializeMixer(device_filename), 'e');
				ErrorExitWarn(SaveSettings(), 'e');
				break;
			case 'L':	/* Load from file. */
				if (mixer_fd == -1)
					ErrorExitWarn(InitializeMixer(device_filename), 'e');
				ErrorExitWarn(LoadSettings(), 'e');
				break;
#if defined (HAVE_CURSES) || defined (HAVE_GTK) || defined (HAVE_GTK1)
			case 'I':	/* User asked for interactive mode. */
				if (!interactive)
					interactive = IN_ANY;
				break;
#endif				/* HAVE_CURSES || HAVE_GTK || HAVE_GTK1 */
			case 'h':	/* Show help. */
				Usage(EXIT_SUCCESS);
				break;
			default:	/* Show help. */
				Usage(EXIT_FAILURE);
			}
		}
	}
#if defined (HAVE_CURSES) || defined (HAVE_GTK) || defined (HAVE_GTK1)
/* Be interactive if no options were given. */
	if (!interactive && argc <= 1)
		interactive = IN_ANY;
/* By now we've decided whether to go interactive.
   The -C (color scheme) option implies curses, even if GTK is available.
*/
	if (interactive == IN_ANY) {
#if defined (HAVE_GTK) || defined (HAVE_GTK1)
		if (getenv("DISPLAY") != NULL)
			interactive = IN_GTK;
#endif				/* HAVE_GTK || HAVE_GTK1 */
#ifdef HAVE_CURSES
		if (interactive == IN_ANY)
			interactive = IN_CURSES;
#endif				/* HAVE_CURSES */
	}
#endif				/* HAVE_CURSES || HAVE_GTK || HAVE_GTK1 */
/* By now, interactive is not IN_ANY.  It is IN_GTK only if DISPLAY is set,
   and otherwise defaults to IN_CURSES.  Since interactive contains the right
   value, it should not be changed any more.
*/
#if defined (HAVE_GTK) || defined (HAVE_GTK1)
/* GTK+ stuff */
	if (interactive == IN_GTK) {
#ifndef DUMMY_MIXER
		if ((mixer_fd = open(device_filename, O_RDWR)) < 0)
			return EOPENMIX;
#endif				/* DUMMY_MIXER */
		ErrorExitWarn(MixerStatus(), 'e');
		if (!devmask)
			return EFINDDEVICE;
		gtk_init(&argc, &argv);
		InitScreenGTK();
		gtk_main();
		return 0;
	}
#endif				/* HAVE_GTK || HAVE_GTK1 */
	if (!interactive) {
		if (usage_ok && optn == -1)
			Usage(EXIT_SUCCESS);
	}
	if (mixer_fd == -1)
		ErrorExitWarn(InitializeMixer(device_filename), 'e');
#if HAVE_CURSES
	if (interactive == IN_CURSES) {
		InitCurses();
		if (setcolors == TRUE)
			ErrorExitWarn(InitColors(scheme_name), 'e');
		else
			SetDefaultColors();
		InitScreen();
		StartMouse();
		Inter();
		Gpm_Close();
#endif				/* HAVE_CURSES */
		close(mixer_fd);
#if HAVE_CURSES
		CloseScreen();
	}
#endif				/* HAVE_CURSES */
	exit(EXIT_SUCCESS);
}

void            ErrorExitWarn(int error, int mode)
{
/* Print error messages.  If mode is "e", bail out. */
	char            string[80];
	const char     *errorlist[] =
	{LOCAL_TEXT_NOOP("aumix:  error opening mixer"), LOCAL_TEXT_NOOP("aumix:  no device found"), " aumix:  SOUND_MIXER_READ_DEVMASK", " aumix:  SOUND_MIXER_READ_RECMASK", "aumix:  SOUND_MIXER_READ_RECSRC", "aumix:  SOUND_MIXER_READ_STEREODEVS", "aumix:  SOUND_MIXER_WRITE_RECSRC", "aumix:  MIXER_READ", "aumix:  MIXER_WRITE", LOCAL_TEXT_NOOP("aumix:  mixer not open"), LOCAL_TEXT_NOOP("aumix:  unable to open settings file")};
	if (!error)
		return;
#if HAVE_CURSES
	if (mode == 'e')	/* exit */
		CloseScreen();
#endif				/* HAVE_CURSES */
	if (error > 12) {
		sprintf(string, LOCAL_TEXT("aumix:  unknown error %i"), error);
		fprintf(stderr, string);
	} else if (error > 0) {
		fprintf(stderr, LOCAL_TEXT(errorlist[error - 1]));
	}
	fprintf(stderr, "\n");
	if (mode == 'e')	/* exit */
		exit(EXIT_FAILURE);
	else
		return;		/* warn */
}

int             LoadSettings(void)
{
/* Read settings from file.
   We depend on the 'mixer' file descriptor having been set
   (and not clobbered) before entering this routine.
 */

	char            textline[80], tmpstring[80], recplay;
	int             tmp, ii, left, right;
	setfile = OpenDefaultFile("r");
	if (setfile == NULL)
		return EFILE;
	while (fgets(textline, 80, setfile) != NULL) {
		(void) sscanf(textline, "%[^:;, ]%*[:;, ]%10u%*[:;, ]%3u%*[:;, ]%1c\n", tmpstring, &left, &right, &recplay);
		if (!strcmp(tmpstring, "wait")) {
			if (!interactive)
				printf(LOCAL_TEXT("%i ms wait\n"), left);
			usleep(left * 1000);
		} else {
			for (ii = 0; ii < SOUND_MIXER_NRDEVICES; ii++) {
/* Cycle through names of channels, looking for matches. */
				if (!strcmp(tmpstring, dev_name[ii])) {
					left = (left > MAXLEVEL) ? MAXLEVEL : left;
					left = (left < 0) ? 0 : left;
					right = (right > MAXLEVEL) ? MAXLEVEL : right;
					right = (right < 0) ? 0 : right;
					tmp = left + (right << 8);
					if ((SOUND_IOCTL(mixer_fd, MIXER_WRITE(ii), &tmp) == -1) && !interactive) {
						printf("%s %s\n", dev_name[ii], LOCAL_TEXT("not set"));
					} else {
						if (!interactive)
							printf("%s %s %i, %i", dev_name[ii], LOCAL_TEXT("set to"), left, right);
						if ((1 << ii) & recmask) {
							ErrorExitWarn(ReadRecSrc(), 'e');
							recsrc = (recplay == 'R') ? recsrc | (1 << ii) : recsrc & ~(1 << ii);
							ErrorExitWarn(WriteRecSrc(), 'e');
							if (!interactive)
								printf(", %c", recplay);
						}
						if (!interactive)
							printf("\n");
					}
				}
			}
		}
	}
	fclose(setfile);
	return 0;
}

int             SaveSettings(void)
{
/* Write settings to file.
   We depend on the 'mixer' file descriptor having been set
   (and not clobbered) before entering this routine.
 */
	int             tmp, ii;
	setfile = OpenDefaultFile("w");
	if (setfile == NULL)
		return EFILE;
	ErrorExitWarn(ReadRecSrc(), 'e');
	for (ii = 0; ii < SOUND_MIXER_NRDEVICES; ii++) {
		if ((1 << ii) & (devmask | recmask)) {
			ErrorExitWarn(ReadLevel(ii, &tmp), 'e');
			fprintf(setfile, "%s:%i:%i:%c\n", dev_name[ii], (tmp & 0xFF), ((tmp >> 8) & 0xFF), ((1 << ii) & recsrc ? 'R' : 'P'));
		}
	}
	if (fclose(setfile))
		return EFILE;
	return 0;
}

int             InitializeMixer(char *device_filename)
{
/* Initialize the mixer.

   Global:

   mixer_fd   = mixer file descriptor reference number

   Return values:

   Success:   0
   Failure:
   EOPENMIX              trouble opening mixer device
   EFINDDEVICE           no device found
   EREADDEV              SOUND_MIXER_READ_DEVMASK
   EREADRECMASK          SOUND_MIXER_READ_RECMASK
   EREADRECSRC           SOUND_MIXER_READ_RECSRC
   EREADSTEREO           SOUND_MIXER_READ_STEREODEVS
 */
#ifdef HAVE_ALSA
	AlsaUnmute();
#endif				/* HAVE_ALSA */
#ifndef DUMMY_MIXER
	if ((mixer_fd = open(device_filename, O_RDWR)) < 0)
		return EOPENMIX;
#endif				/* DUMMY_MIXER */
	ErrorExitWarn(MixerStatus(), 'e');
	if (!devmask)