view src/ntplay.c @ 4502:8748a3f7ceb4

Handle varalias chains, custom variables in #'user-variable-p. src/ChangeLog addition: 2008-08-23 Aidan Kehoe <kehoea@parhasard.net> * eval.c (Fuser_variable_p): Moved to symbols.c * symbols.c (Fcustom_variable_p): Moved here from custom.el. (user_variable_alias_check_fun): Mapper function used in `user-variable-p'. (Fuser_variable_p): Moved here from eval.c, to allow it to examine the variable alias chain. Expanded to check each entry in the variable alias chain for signs of being a user variable; documentation updated, noting the differences between GNU's behaviour and ours (ours is a little more sensible) (map_varalias_chain): New. Given a C function, call it at least once for each symbol in a symbol's varalias chain, signalling an error if there's a cycle, and returning immediately if the function returns something other than Qzero. (Fdefvaralias): Correct the use of the word "alias" in the docstring and in the argument name. Motivate this in a comment. Add support for a DOCSTRING argument, something GNU has too, and document this * gc.c (vars_of_gc): Start the docstring of `garbage-collection-messages' with an asterisk, to indicate that it's a user variable. lisp/ChangeLog addition: 2008-08-23 Aidan Kehoe <kehoea@parhasard.net> * custom.el: Move #'custom-variable-p to C, since it's now called from #'user-variable-p.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 23 Aug 2008 16:38:51 +0200
parents 902d5bd9b75c
children 16112448d484 4aebb0131297
line wrap: on
line source

/* Sound in windows nt XEmacs.
   Copyright (C) 1998 Andy Piper.
   Copyright (C) 2001 Ben Wing.

This file is part of XEmacs.

XEmacs 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, or (at your option) any
later version.

XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.*/

/* Synched up with: Not in FSF. */

/* This file Mule-ized by Ben Wing, 5-15-01. */

#include <config.h>
#include "lisp.h"

#include "sound.h"
#include "syswindows.h"

#include "sysfile.h"

static int play_sound_data_1 (Binbyte *data, int length,
			      int volume, int convert);

void
nt_play_sound_file (Lisp_Object path, int UNUSED (volume))
{
  DWORD flags = SND_ASYNC | SND_NODEFAULT | SND_FILENAME;
  Lisp_Object fname = Ffile_name_nondirectory (path);
  Extbyte *fnameext;

  LISP_STRING_TO_TSTR (fname, fnameext);

  if (qxeSearchPath (NULL, fnameext, NULL, 0, NULL, NULL) == 0)
    {
      /* file isn't in the path so read it as data */
      int size;
      Binbyte *data;
      int ofd = qxe_open (XSTRING_DATA (path), O_RDONLY | OPEN_BINARY, 0);
      
      if (ofd < 0)
	return;

      size = lseek (ofd, 0, SEEK_END);
      data = xnew_binbytes (size);
      lseek (ofd, 0, SEEK_SET);
      
      if (!data)
	{
	  retry_close (ofd);
	  return;
	}

      if (retry_read (ofd, data, size) != size)
	{
	  retry_close (ofd);
	  xfree (data, Binbyte *);
	  return;
	}
      retry_close (ofd);
      
      play_sound_data_1 (data, size, 100, FALSE);
    }
  else 
    qxePlaySound (fnameext, NULL, flags);
}

/* mswindows can't cope with playing a sound from alloca space so we
   have to convert if necessary */
static int
play_sound_data_1 (Binbyte *data, int length, int UNUSED (volume),
		   int convert_to_malloc)
{
  DWORD flags = SND_ASYNC | SND_MEMORY | SND_NODEFAULT;
  static Binbyte *sound_data = 0;
  if (sound_data)
    {
      qxePlaySound (NULL, NULL, flags);
      xfree (sound_data, Binbyte *);
      sound_data = 0;
    }

  if (convert_to_malloc)
    {
      sound_data = xnew_binbytes (length);
      memcpy (sound_data, data, length);
    }
  else
    sound_data = data;

  qxePlaySound ((Extbyte *) sound_data, NULL, flags);

  /* #### Error handling? */ 
  return 1;
}

int
play_sound_data (Binbyte *data, int length, int volume)
{
  return play_sound_data_1 (data, length, volume, TRUE);
}