/* sound.c -- sound support.
- Copyright (C) 1998, 1999, 2001 Free Software Foundation.
+ Copyright (C) 1998, 1999, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
/* Written by Gerd Moellmann <gerd@gnu.org>. Tested with Luigi's
driver on FreeBSD 2.2.7 with a SoundBlaster 16. */
+/*
+ Modified by Ben Key <Bkey1@tampabay.rr.com> to add a partial
+ implementation of the play-sound specification for Windows.
+
+ Notes:
+ In the Windows implementation of play-sound-internal only the
+ :file and :volume keywords are supported. The :device keyword,
+ if present, is ignored. The :data keyword, if present, will
+ cause an error to be generated.
+
+ The Windows implementation of play-sound is implemented via the
+ Win32 API functions mciSendString, waveOutGetVolume, and
+ waveOutSetVolume which are exported by Winmm.dll.
+*/
+
#include <config.h>
#if defined HAVE_SOUND
+/* BEGIN: Common Includes */
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include "atimer.h"
#include <signal.h>
#include "syssignal.h"
+/* END: Common Includes */
+
+
+/* BEGIN: Non Windows Includes */
+#ifndef WINDOWSNT
+
+#ifndef MSDOS
+#include <sys/ioctl.h>
+#endif
/* FreeBSD has machine/soundcard.h. Voxware sound driver docs mention
sys/soundcard.h. So, let's try whatever's there. */
#include <sys/soundcard.h>
#endif
#ifdef HAVE_SOUNDCARD_H
-#include <sys/ioctl.h>
#include <soundcard.h>
#endif
+/* END: Non Windows Includes */
+
+#else /* WINDOWSNT */
+
+/* BEGIN: Windows Specific Includes */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <windows.h>
+#include <mmsystem.h>
+/* END: Windows Specific Includes */
+
+#endif /* WINDOWSNT */
+
+/* BEGIN: Common Definitions */
+#define abs(X) ((X) < 0 ? -(X) : (X))
+
+/* Symbols. */
+
+extern Lisp_Object QCfile, QCdata;
+Lisp_Object QCvolume, QCdevice;
+Lisp_Object Qsound;
+Lisp_Object Qplay_sound_functions;
+
+/* Indices of attributes in a sound attributes vector. */
+
+enum sound_attr
+{
+ SOUND_FILE,
+ SOUND_DATA,
+ SOUND_DEVICE,
+ SOUND_VOLUME,
+ SOUND_ATTR_SENTINEL
+};
+
+static void sound_perror P_ ((char *));
+static void sound_warning P_ ((char *));
+static int parse_sound P_ ((Lisp_Object, Lisp_Object *));
+
+/* END: Common Definitions */
+
+/* BEGIN: Non Windows Definitions */
+#ifndef WINDOWSNT
#ifndef DEFAULT_SOUND_DEVICE
#define DEFAULT_SOUND_DEVICE "/dev/dsp"
#endif
-#define abs(X) ((X) < 0 ? -(X) : (X))
/* Structure forward declarations. */
{
/* ASCII ".snd" */
u_int32_t magic_number;
-
+
/* Offset of data part from start of file. Minimum value is 24. */
u_int32_t data_offset;
-
+
/* Size of data part, 0xffffffff if unknown. */
u_int32_t data_size;
/* 1 = mono, 2 = stereo, 0 = don't set. */
int channels;
-
+
/* Open device SD. */
void (* open) P_ ((struct sound_device *sd));
/* Configure SD accoring to device-dependent parameters. */
void (* configure) P_ ((struct sound_device *device));
-
+
/* Choose a device-dependent format for outputting sound S. */
void (* choose_format) P_ ((struct sound_device *sd,
struct sound *s));
/* Write NYBTES bytes from BUFFER to device SD. */
- void (* write) P_ ((struct sound_device *sd, char *buffer, int nbytes));
+ void (* write) P_ ((struct sound_device *sd, const char *buffer,
+ int nbytes));
/* A place for devices to store additional data. */
void *data;
Lisp_Object data;
/* Play sound file S on device SD. */
- void (* play) P_ ((struct sound *s, struct sound_device *sd));
+ void (* play) P_ ((struct sound *s, struct sound_device *sd));
};
-/* Indices of attributes in a sound attributes vector. */
-
-enum sound_attr
-{
- SOUND_FILE,
- SOUND_DATA,
- SOUND_DEVICE,
- SOUND_VOLUME,
- SOUND_ATTR_SENTINEL
-};
-
-/* Symbols. */
-
-extern Lisp_Object QCfile, QCdata;
-Lisp_Object QCvolume, QCdevice;
-Lisp_Object Qsound;
-Lisp_Object Qplay_sound_functions;
-
-/* These are set during `play-sound' so that sound_cleanup has
+/* These are set during `play-sound-internal' so that sound_cleanup has
access to them. */
struct sound_device *current_sound_device;
static void vox_close P_ ((struct sound_device *sd));
static void vox_choose_format P_ ((struct sound_device *, struct sound *));
static void vox_init P_ ((struct sound_device *));
-static void vox_write P_ ((struct sound_device *, char *, int));
-static void sound_perror P_ ((char *));
-static int parse_sound P_ ((Lisp_Object, Lisp_Object *));
+static void vox_write P_ ((struct sound_device *, const char *, int));
static void find_sound_type P_ ((struct sound *));
static u_int32_t le2hl P_ ((u_int32_t));
static u_int16_t le2hs P_ ((u_int16_t));
static u_int16_t be2hs P_ ((u_int16_t));
#endif
+/* END: Non Windows Definitions */
+#else /* WINDOWSNT */
+
+/* BEGIN: Windows Specific Definitions */
+static int do_play_sound P_ ((const char *, unsigned long));
+/*
+ END: Windows Specific Definitions */
+#endif /* WINDOWSNT */
\f
/***********************************************************************
General
***********************************************************************/
+/* BEGIN: Common functions */
+
/* Like perror, but signals an error. */
static void
sound_perror (msg)
char *msg;
{
- error ("%s: %s", msg, strerror (errno));
+ int saved_errno = errno;
+
+ turn_on_atimers (1);
+#ifdef SIGIO
+ sigunblock (sigmask (SIGIO));
+#endif
+ if (saved_errno != 0)
+ error ("%s: %s", msg, strerror (saved_errno));
+ else
+ error ("%s", msg);
+}
+
+
+/* Display a warning message. */
+
+static void
+sound_warning (msg)
+ char *msg;
+{
+ message (msg);
}
attrs[SOUND_DEVICE] = Fplist_get (sound, QCdevice);
attrs[SOUND_VOLUME] = Fplist_get (sound, QCvolume);
+#ifndef WINDOWSNT
/* File name or data must be specified. */
if (!STRINGP (attrs[SOUND_FILE])
&& !STRINGP (attrs[SOUND_DATA]))
return 0;
+#else /* WINDOWSNT */
+ /*
+ Data is not supported in Windows. Therefore a
+ File name MUST be supplied.
+ */
+ if (!STRINGP (attrs[SOUND_FILE]))
+ {
+ return 0;
+ }
+#endif /* WINDOWSNT */
/* Volume must be in the range 0..100 or unspecified. */
if (!NILP (attrs[SOUND_VOLUME]))
return 0;
}
+#ifndef WINDOWSNT
/* Device must be a string or unspecified. */
if (!NILP (attrs[SOUND_DEVICE])
&& !STRINGP (attrs[SOUND_DEVICE]))
return 0;
-
+#endif /* WINDOWSNT */
+ /*
+ Since device is ignored in Windows, it does not matter
+ what it is.
+ */
return 1;
}
+/* END: Common functions */
+
+/* BEGIN: Non Windows functions */
+#ifndef WINDOWSNT
/* Find out the type of the sound file whose file descriptor is FD.
S is the sound file structure to fill in. */
}
-/* Function installed by play-sound with record_unwind_protect. */
+/* Function installed by play-sound-internal with record_unwind_protect. */
static Lisp_Object
sound_cleanup (arg)
Lisp_Object arg;
{
- if (current_sound_device)
- {
- if (current_sound_device->close)
- current_sound_device->close (current_sound_device);
- if (current_sound->fd > 0)
- emacs_close (current_sound->fd);
- }
+ if (current_sound_device->close)
+ current_sound_device->close (current_sound_device);
+ if (current_sound->fd > 0)
+ emacs_close (current_sound->fd);
+ free (current_sound_device);
+ free (current_sound);
return Qnil;
}
-
-DEFUN ("play-sound", Fplay_sound, Splay_sound, 1, 1, 0,
- "Play sound SOUND.\n\
-SOUND is a list of the form `(sound KEYWORD VALUE...)'.\n\
-The following keywords are recognized:\n\
-\n\
- :file FILE.- read sound data from FILE. If FILE isn't an\n\
-absolute file name, it is searched in `data-directory'.\n\
-\n\
- :data DATA - read sound data from string DATA.\n\
-\n\
-Exactly one of :file or :data must be present.\n\
-\n\
- :volume VOL - set volume to VOL. VOL must an integer in the\n\
-range 0..100 or a float in the range 0..1.0. If not specified,\n\
-don't change the volume setting of the sound device.\n\
-\n\
- :device DEVICE - play sound on DEVICE. If not specified,\n\
-a system-dependent default device name is used.")
- (sound)
- Lisp_Object sound;
-{
- Lisp_Object attrs[SOUND_ATTR_SENTINEL];
- Lisp_Object file;
- struct gcpro gcpro1, gcpro2;
- struct sound_device sd;
- struct sound s;
- Lisp_Object args[2];
- int count = specpdl_ptr - specpdl;
-
- file = Qnil;
- GCPRO2 (sound, file);
- bzero (&sd, sizeof sd);
- bzero (&s, sizeof s);
- current_sound_device = &sd;
- current_sound = &s;
- record_unwind_protect (sound_cleanup, Qnil);
- s.header = (char *) alloca (MAX_SOUND_HEADER_BYTES);
-
- /* Parse the sound specification. Give up if it is invalid. */
- if (!parse_sound (sound, attrs))
- error ("Invalid sound specification");
-
- if (STRINGP (attrs[SOUND_FILE]))
- {
- /* Open the sound file. */
- s.fd = openp (Fcons (Vdata_directory, Qnil),
- attrs[SOUND_FILE], Qnil, &file, 0);
- if (s.fd < 0)
- sound_perror ("Open sound file");
-
- /* Read the first bytes from the file. */
- s.header_size = emacs_read (s.fd, s.header, MAX_SOUND_HEADER_BYTES);
- if (s.header_size < 0)
- sound_perror ("Reading sound file header");
- }
- else
- {
- s.data = attrs[SOUND_DATA];
- bcopy (XSTRING (s.data)->data, s.header,
- min (MAX_SOUND_HEADER_BYTES, STRING_BYTES (XSTRING (s.data))));
- }
-
- /* Find out the type of sound. Give up if we can't tell. */
- find_sound_type (&s);
-
- /* Set up a device. */
- if (STRINGP (attrs[SOUND_DEVICE]))
- {
- int len = XSTRING (attrs[SOUND_DEVICE])->size;
- sd.file = (char *) alloca (len + 1);
- strcpy (sd.file, XSTRING (attrs[SOUND_DEVICE])->data);
- }
-
- if (INTEGERP (attrs[SOUND_VOLUME]))
- sd.volume = XFASTINT (attrs[SOUND_VOLUME]);
- else if (FLOATP (attrs[SOUND_VOLUME]))
- sd.volume = XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100;
-
- args[0] = Qplay_sound_functions;
- args[1] = sound;
- Frun_hook_with_args (2, args);
-
- /* There is only one type of device we currently support, the VOX
- sound driver. Set up the device interface functions for that
- device. */
- vox_init (&sd);
-
- /* Open the device. */
- sd.open (&sd);
-
- /* Play the sound. */
- s.play (&s, &sd);
-
- /* Close the input file, if any. */
- if (!STRINGP (s.data))
- {
- emacs_close (s.fd);
- s.fd = -1;
- }
-
- /* Close the device. */
- sd.close (&sd);
-
- /* Clean up. */
- current_sound_device = NULL;
- current_sound = NULL;
- UNGCPRO;
- unbind_to (count, Qnil);
- return Qnil;
-}
-
-\f
/***********************************************************************
Byte-order Conversion
***********************************************************************/
#endif /* 0 */
-\f
/***********************************************************************
RIFF-WAVE (*.wav)
***********************************************************************/
s->play = wav_play;
return 1;
-}
+}
/* Play RIFF-WAVE audio file S on sound device SD. */
/* Let the device choose a suitable device-dependent format
for the file. */
sd->choose_format (sd, s);
-
+
/* Configure the device. */
sd->sample_size = header->sample_size;
sd->sample_rate = header->sample_rate;
files I found so far. If someone feels inclined to implement the
whole RIFF-WAVE spec, please do. */
if (STRINGP (s->data))
- sd->write (sd, XSTRING (s->data)->data + sizeof *header,
- STRING_BYTES (XSTRING (s->data)) - sizeof *header);
+ sd->write (sd, SDATA (s->data) + sizeof *header,
+ SBYTES (s->data) - sizeof *header);
else
{
char *buffer;
int nbytes;
int blksize = 2048;
-
+
buffer = (char *) alloca (blksize);
lseek (s->fd, sizeof *header, SEEK_SET);
-
+
while ((nbytes = emacs_read (s->fd, buffer, blksize)) > 0)
sd->write (sd, buffer, nbytes);
if (nbytes < 0)
- sound_perror ("Reading sound file");
+ sound_perror ("Error reading sound file");
}
}
-\f
/***********************************************************************
Sun Audio (*.au)
***********************************************************************/
-/* Sun audio file encodings. */
+/* Sun audio file encodings. */
enum au_encoding
{
struct sound *s;
{
struct au_header *header = (struct au_header *) s->header;
-
+
if (s->header_size < sizeof *header
|| bcmp (s->header, ".snd", 4) != 0)
return 0;
-
+
header->magic_number = be2hl (header->magic_number);
header->data_offset = be2hl (header->data_offset);
header->data_size = be2hl (header->data_size);
header->encoding = be2hl (header->encoding);
header->sample_rate = be2hl (header->sample_rate);
header->channels = be2hl (header->channels);
-
+
/* Set up the interface functions for AU. */
s->type = SUN_AUDIO;
s->play = au_play;
sd->configure (sd);
if (STRINGP (s->data))
- sd->write (sd, XSTRING (s->data)->data + header->data_offset,
- STRING_BYTES (XSTRING (s->data)) - header->data_offset);
+ sd->write (sd, SDATA (s->data) + header->data_offset,
+ SBYTES (s->data) - header->data_offset);
else
{
int blksize = 2048;
char *buffer;
int nbytes;
-
+
/* Seek */
lseek (s->fd, header->data_offset, SEEK_SET);
-
+
/* Copy sound data to the device. */
buffer = (char *) alloca (blksize);
while ((nbytes = emacs_read (s->fd, buffer, blksize)) > 0)
sd->write (sd, buffer, nbytes);
-
+
if (nbytes < 0)
- sound_perror ("Reading sound file");
+ sound_perror ("Error reading sound file");
}
}
-\f
/***********************************************************************
Voxware Driver Interface
***********************************************************************/
struct sound_device *sd;
{
char *file;
-
+
/* Open the sound device. Default is /dev/dsp. */
if (sd->file)
file = sd->file;
else
file = DEFAULT_SOUND_DEVICE;
-
+
sd->fd = emacs_open (file, O_WRONLY, 0);
if (sd->fd < 0)
sound_perror (file);
struct sound_device *sd;
{
int val;
-
+
xassert (sd->fd >= 0);
/* On GNU/Linux, it seems that the device driver doesn't like to be
val = sd->format;
if (ioctl (sd->fd, SNDCTL_DSP_SETFMT, &sd->format) < 0
|| val != sd->format)
- sound_perror ("Set sound format");
+ sound_perror ("Could not set sound format");
val = sd->channels != 1;
if (ioctl (sd->fd, SNDCTL_DSP_STEREO, &val) < 0
|| val != (sd->channels != 1))
- sound_perror ("Set stereo/mono");
+ sound_perror ("Could not set stereo/mono");
/* I think bps and sampling_rate are the same, but who knows.
Check this. and use SND_DSP_SPEED for both. */
if (sd->sample_rate > 0)
{
val = sd->sample_rate;
- if (ioctl (sd->fd, SNDCTL_DSP_SPEED, &sd->sample_rate) < 0
- || val != sd->sample_rate)
- sound_perror ("Set sound speed");
+ if (ioctl (sd->fd, SNDCTL_DSP_SPEED, &sd->sample_rate) < 0)
+ sound_perror ("Could not set sound speed");
+ else if (val != sd->sample_rate)
+ sound_warning ("Could not set sample rate");
}
if (sd->volume > 0)
/* This may fail if there is no mixer. Ignore the failure. */
ioctl (sd->fd, SOUND_MIXER_WRITE_PCM, &volume);
}
-
+
turn_on_atimers (1);
#ifdef SIGIO
sigunblock (sigmask (SIGIO));
sigblock (sigmask (SIGIO));
#endif
turn_on_atimers (0);
-
+
/* Flush sound data, and reset the device. */
ioctl (sd->fd, SNDCTL_DSP_SYNC, NULL);
-
+
turn_on_atimers (1);
#ifdef SIGIO
sigunblock (sigmask (SIGIO));
case AU_ENCODING_IEEE64:
sd->format = AFMT_MU_LAW;
break;
-
+
case AU_ENCODING_8:
case AU_ENCODING_16:
case AU_ENCODING_24:
sd->write = vox_write;
}
-
/* Write NBYTES bytes from BUFFER to device SD. */
static void
vox_write (sd, buffer, nbytes)
struct sound_device *sd;
- char *buffer;
+ const char *buffer;
int nbytes;
{
int nwritten = emacs_write (sd->fd, buffer, nbytes);
if (nwritten < 0)
- sound_perror ("Writing to sound device");
+ sound_perror ("Error writing to sound device");
+}
+
+/* END: Non Windows functions */
+#else /* WINDOWSNT */
+
+/* BEGIN: Windows specific functions */
+
+static int
+do_play_sound (psz_file, ui_volume)
+ const char *psz_file;
+ unsigned long ui_volume;
+{
+ int i_result = 0;
+ MCIERROR mci_error = 0;
+ char sz_cmd_buf[520] = {0};
+ char sz_ret_buf[520] = {0};
+ MMRESULT mm_result = MMSYSERR_NOERROR;
+ unsigned long ui_volume_org = 0;
+ BOOL b_reset_volume = FALSE;
+
+ memset (sz_cmd_buf, 0, sizeof(sz_cmd_buf));
+ memset (sz_ret_buf, 0, sizeof(sz_ret_buf));
+ sprintf (sz_cmd_buf,
+ "open \"%s\" alias GNUEmacs_PlaySound_Device wait",
+ psz_file);
+ mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, 520, NULL);
+ if (mci_error != 0)
+ {
+ sound_warning ("The open mciSendString command failed to open\n"
+ "the specified sound file");
+ i_result = (int) mci_error;
+ return i_result;
+ }
+ if ((ui_volume > 0) && (ui_volume != UINT_MAX))
+ {
+ mm_result = waveOutGetVolume ((HWAVEOUT) WAVE_MAPPER, &ui_volume_org);
+ if (mm_result == MMSYSERR_NOERROR)
+ {
+ b_reset_volume = TRUE;
+ mm_result = waveOutSetVolume ((HWAVEOUT) WAVE_MAPPER, ui_volume);
+ if ( mm_result != MMSYSERR_NOERROR)
+ {
+ sound_warning ("waveOutSetVolume failed to set the volume level\n"
+ "of the WAVE_MAPPER device.\n"
+ "As a result, the user selected volume level will\n"
+ "not be used.");
+ }
+ }
+ else
+ {
+ sound_warning ("waveOutGetVolume failed to obtain the original\n"
+ "volume level of the WAVE_MAPPER device.\n"
+ "As a result, the user selected volume level will\n"
+ "not be used.");
+ }
+ }
+ memset (sz_cmd_buf, 0, sizeof(sz_cmd_buf));
+ memset (sz_ret_buf, 0, sizeof(sz_ret_buf));
+ strcpy (sz_cmd_buf, "play GNUEmacs_PlaySound_Device wait");
+ mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, 520, NULL);
+ if (mci_error != 0)
+ {
+ sound_warning ("The play mciSendString command failed to play the\n"
+ "opened sound file.");
+ i_result = (int) mci_error;
+ }
+ memset (sz_cmd_buf, 0, sizeof(sz_cmd_buf));
+ memset (sz_ret_buf, 0, sizeof(sz_ret_buf));
+ strcpy (sz_cmd_buf, "close GNUEmacs_PlaySound_Device wait");
+ mci_error = mciSendString (sz_cmd_buf, sz_ret_buf, 520, NULL);
+ if (b_reset_volume == TRUE)
+ {
+ mm_result=waveOutSetVolume ((HWAVEOUT) WAVE_MAPPER, ui_volume_org);
+ if (mm_result != MMSYSERR_NOERROR)
+ {
+ sound_warning ("waveOutSetVolume failed to reset the original volume\n"
+ "level of the WAVE_MAPPER device.");
+ }
+ }
+ return i_result;
}
+/* END: Windows specific functions */
+
+#endif /* WINDOWSNT */
+
+DEFUN ("play-sound-internal", Fplay_sound_internal, Splay_sound_internal, 1, 1, 0,
+ doc: /* Play sound SOUND.
+
+Internal use only, use `play-sound' instead.\n */)
+ (sound)
+ Lisp_Object sound;
+{
+ Lisp_Object attrs[SOUND_ATTR_SENTINEL];
+ int count = SPECPDL_INDEX ();
+
+#ifndef WINDOWSNT
+ Lisp_Object file;
+ struct gcpro gcpro1, gcpro2;
+ Lisp_Object args[2];
+#else /* WINDOWSNT */
+ int len = 0;
+ Lisp_Object lo_file = {0};
+ char * psz_file = NULL;
+ unsigned long ui_volume_tmp = UINT_MAX;
+ unsigned long ui_volume = UINT_MAX;
+ int i_result = 0;
+#endif /* WINDOWSNT */
+
+ /* Parse the sound specification. Give up if it is invalid. */
+ if (!parse_sound (sound, attrs))
+ error ("Invalid sound specification");
+
+#ifndef WINDOWSNT
+ file = Qnil;
+ GCPRO2 (sound, file);
+ current_sound_device = (struct sound_device *) xmalloc (sizeof (struct sound_device));
+ bzero (current_sound_device, sizeof (struct sound_device));
+ current_sound = (struct sound *) xmalloc (sizeof (struct sound));
+ bzero (current_sound, sizeof (struct sound));
+ record_unwind_protect (sound_cleanup, Qnil);
+ current_sound->header = (char *) alloca (MAX_SOUND_HEADER_BYTES);
+
+ if (STRINGP (attrs[SOUND_FILE]))
+ {
+ /* Open the sound file. */
+ current_sound->fd = openp (Fcons (Vdata_directory, Qnil),
+ attrs[SOUND_FILE], Qnil, &file, Qnil);
+ if (current_sound->fd < 0)
+ sound_perror ("Could not open sound file");
+
+ /* Read the first bytes from the file. */
+ current_sound->header_size
+ = emacs_read (current_sound->fd, current_sound->header,
+ MAX_SOUND_HEADER_BYTES);
+ if (current_sound->header_size < 0)
+ sound_perror ("Invalid sound file header");
+ }
+ else
+ {
+ current_sound->data = attrs[SOUND_DATA];
+ current_sound->header_size = min (MAX_SOUND_HEADER_BYTES, SBYTES (current_sound->data));
+ bcopy (SDATA (current_sound->data), current_sound->header, current_sound->header_size);
+ }
+
+ /* Find out the type of sound. Give up if we can't tell. */
+ find_sound_type (current_sound);
+
+ /* Set up a device. */
+ if (STRINGP (attrs[SOUND_DEVICE]))
+ {
+ int len = SCHARS (attrs[SOUND_DEVICE]);
+ current_sound_device->file = (char *) alloca (len + 1);
+ strcpy (current_sound_device->file, SDATA (attrs[SOUND_DEVICE]));
+ }
+
+ if (INTEGERP (attrs[SOUND_VOLUME]))
+ current_sound_device->volume = XFASTINT (attrs[SOUND_VOLUME]);
+ else if (FLOATP (attrs[SOUND_VOLUME]))
+ current_sound_device->volume = XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100;
+ args[0] = Qplay_sound_functions;
+ args[1] = sound;
+ Frun_hook_with_args (2, args);
+
+ /* There is only one type of device we currently support, the VOX
+ sound driver. Set up the device interface functions for that
+ device. */
+ vox_init (current_sound_device);
+
+ /* Open the device. */
+ current_sound_device->open (current_sound_device);
+
+ /* Play the sound. */
+ current_sound->play (current_sound, current_sound_device);
+
+ /* Clean up. */
+ UNGCPRO;
+
+#else /* WINDOWSNT */
+
+ lo_file = Fexpand_file_name (attrs[SOUND_FILE], Qnil);
+ len = XSTRING (lo_file)->size;
+ psz_file = (char *) alloca (len + 1);
+ strcpy (psz_file, XSTRING (lo_file)->data);
+ if (INTEGERP (attrs[SOUND_VOLUME]))
+ {
+ ui_volume_tmp = XFASTINT (attrs[SOUND_VOLUME]);
+ }
+ else if (FLOATP (attrs[SOUND_VOLUME]))
+ {
+ ui_volume_tmp = (unsigned long) XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100;
+ }
+ /*
+ Based on some experiments I have conducted, a value of 100 or less
+ for the sound volume is much too low. You cannot even hear it.
+ A value of UINT_MAX indicates that you wish for the sound to played
+ at the maximum possible volume. A value of UINT_MAX/2 plays the
+ sound at 50% maximum volume. Therefore the value passed to do_play_sound
+ (and thus to waveOutSetVolume) must be some fraction of UINT_MAX.
+ The following code adjusts the user specified volume level appropriately.
+ */
+ if ((ui_volume_tmp > 0) && (ui_volume_tmp <= 100))
+ {
+ ui_volume = ui_volume_tmp * (UINT_MAX / 100);
+ }
+ i_result = do_play_sound (psz_file, ui_volume);
+
+#endif /* WINDOWSNT */
+
+ unbind_to (count, Qnil);
+ return Qnil;
+}
\f
/***********************************************************************
Initialization
Qplay_sound_functions = intern ("play-sound-functions");
staticpro (&Qplay_sound_functions);
- defsubr (&Splay_sound);
+ defsubr (&Splay_sound_internal);
}
}
#endif /* HAVE_SOUND */
+
+/* arch-tag: dd850ad8-0433-4e2c-9cba-b7aeeccc0dbd
+ (do not change this comment) */