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[gnu-emacs] / src / sound.c

diff --git a/src/sound.c b/src/sound.c
index 7f0ede5b398a82e3e441971062a061a4429b07de..a95678812e1a6ac12e7c06777e567bbc55652fd8 100644 (file)
--- a/src/sound.c
+++ b/src/sound.c
@@ -1,6 +1,6 @@
 /* sound.c -- sound support.
 
-Copyright (C) 1998-1999, 2001-2013 Free Software Foundation, Inc.
+Copyright (C) 1998-1999, 2001-2014 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -55,6 +55,8 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* BEGIN: Non Windows Includes */
 #ifndef WINDOWSNT
 
+#include <byteswap.h>
+
 #include <sys/ioctl.h>
 
 /* FreeBSD has machine/soundcard.h.  Voxware sound driver docs mention
@@ -437,10 +439,10 @@ find_sound_type (struct sound *s)
 }
 
 
-/* Function installed by play-sound-internal with record_unwind_protect.  */
+/* Function installed by play-sound-internal with record_unwind_protect_void.  */
 
-static Lisp_Object
-sound_cleanup (Lisp_Object arg)
+static void
+sound_cleanup (void)
 {
   if (current_sound_device->close)
     current_sound_device->close (current_sound_device);
@@ -448,8 +450,6 @@ sound_cleanup (Lisp_Object arg)
     emacs_close (current_sound->fd);
   xfree (current_sound_device);
   xfree (current_sound);
-
-  return Qnil;
 }
 
 /***********************************************************************
@@ -463,8 +463,7 @@ static u_int32_t
 le2hl (u_int32_t value)
 {
 #ifdef WORDS_BIGENDIAN
-  unsigned char *p = (unsigned char *) &value;
-  value = p[0] + (p[1] << 8) + (p[2] << 16) + (p[3] << 24);
+  value = bswap_32 (value);
 #endif
   return value;
 }
@@ -477,8 +476,7 @@ static u_int16_t
 le2hs (u_int16_t value)
 {
 #ifdef WORDS_BIGENDIAN
-  unsigned char *p = (unsigned char *) &value;
-  value = p[0] + (p[1] << 8);
+  value = bswap_16 (value);
 #endif
   return value;
 }
@@ -491,30 +489,11 @@ static u_int32_t
 be2hl (u_int32_t value)
 {
 #ifndef WORDS_BIGENDIAN
-  unsigned char *p = (unsigned char *) &value;
-  value = p[3] + (p[2] << 8) + (p[1] << 16) + (p[0] << 24);
-#endif
-  return value;
-}
-
-
-#if 0 /* Currently not used.  */
-
-/* Convert 16-bit value VALUE which is in big-endian byte-order
-   to host byte-order.  */
-
-static u_int16_t
-be2hs (u_int16_t value)
-{
-#ifndef WORDS_BIGENDIAN
-  unsigned char *p = (unsigned char *) &value;
-  value = p[1] + (p[0] << 8);
+  value = bswap_32 (value);
 #endif
   return value;
 }
 
-#endif /* 0 */
-
 /***********************************************************************
                          RIFF-WAVE (*.wav)
  ***********************************************************************/
@@ -879,7 +858,7 @@ vox_init (struct sound_device *sd)
 static void
 vox_write (struct sound_device *sd, const char *buffer, ptrdiff_t nbytes)
 {
-  if (emacs_write (sd->fd, buffer, nbytes) != nbytes)
+  if (emacs_write_sig (sd->fd, buffer, nbytes) != nbytes)
     sound_perror ("Error writing to sound device");
 }
 
@@ -1346,14 +1325,14 @@ Internal use only, use `play-sound' instead.  */)
   GCPRO2 (sound, file);
   current_sound_device = xzalloc (sizeof *current_sound_device);
   current_sound = xzalloc (sizeof *current_sound);
-  record_unwind_protect (sound_cleanup, Qnil);
+  record_unwind_protect_void (sound_cleanup);
   current_sound->header = 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);
+      current_sound->fd = openp (list1 (Vdata_directory),
+                                attrs[SOUND_FILE], Qnil, &file, Qnil, false);
       if (current_sound->fd < 0)
        sound_perror ("Could not open sound file");