#include "snd.h"
#include "snd-file.h"
#include "sndlib-strings.h"


/* -------------------------------- basic file attributes -------------------------------- */

#ifdef _MSC_VER
  mus_long_t disk_kspace(const char *filename) {return(1234567);}
#else

  #include <sys/statvfs.h>
  #include <sys/param.h>
  #include <dirent.h>

#if __bsdi__ || __NetBSD__
  #include <sys/mount.h>
#endif

mus_long_t disk_kspace(const char *filename)
{
#if HAVE_SUN
  statvfs_t buf; /* else dumb compiler complaint */
#else
  struct statvfs buf;
#endif
  mus_long_t err;
  err = statvfs(filename, &buf);
  if (err == 0)
    {
      if (buf.f_frsize == 1024) 
	return(buf.f_bfree);
      return((mus_long_t)(buf.f_frsize * ((double)(buf.f_bfree) / 1024.0)));
    }
  return(err);
}
#endif


bool is_link_file(const char *filename)
{
#if __MINGW32__ 
  return(false);
#else 
  struct stat statbuf;
#ifndef _MSC_VER
  return((stat(filename, &statbuf) >= 0) &&
	 (S_ISLNK(statbuf.st_mode)));
#else
  return((stat(filename, &statbuf) == 0) && 
	 (S_ISLNK(statbuf.st_mode)));
#endif
#endif
}


bool is_directory(const char *filename)
{
  struct stat statbuf;
#ifndef _MSC_VER
  return((stat(filename, &statbuf) >= 0) &&
	 (S_ISDIR(statbuf.st_mode)));
#else
  return((stat(filename, &statbuf) == 0) && 
	 (S_ISDIR(statbuf.st_mode)));
#endif
}


time_t file_write_date(const char *filename)
{
  struct stat statbuf;
  int err;
  if (!filename) return((time_t)0);
  err = stat(filename, &statbuf);
  if (err < 0) return((time_t)err);
  return((time_t)(statbuf.st_mtime));
}


const char *short_sample_type_name(mus_sample_t sndlib_sample_type, const char *filename)
{
  if (mus_is_sample_type(sndlib_sample_type))
    return(mus_sample_type_short_name(sndlib_sample_type));
  else return(mus_header_original_sample_type_name(mus_sound_original_sample_type(filename),
						   mus_sound_header_type(filename)));
}


static void forget_filename(const char *filename, char **names)
{
  int i, j = 0;
  for (i = 0; i < FILENAME_LIST_SIZE; i++)
    if ((names[i]) &&
	(strcmp(names[i], filename) == 0))
      {
	free(names[i]);
	names[i] = NULL;
      }
  for (i = 0; i < FILENAME_LIST_SIZE; i++)
    if (names[i])
      {
	if (i != j) 
	  {
	    names[j] = names[i];
	    names[i] = NULL;
	  }
	j++;
      }
}


void remember_filename(const char *filename, char **names)
{
  int i;
  forget_filename(filename, names); /* clear out old copy, if any, then compact the list */
  if (names[FILENAME_LIST_SIZE - 1]) free(names[FILENAME_LIST_SIZE - 1]);
  for (i = FILENAME_LIST_SIZE - 1; i > 0; i--) 
    names[i] = names[i - 1];
  names[0] = mus_strdup(filename);
}


char **make_filename_list(void)
{
  return((char **)calloc(FILENAME_LIST_SIZE, sizeof(char *)));
}


static char *preloaded_files[FILENAME_LIST_SIZE];

void preload_filenames(char **files)
{
  int i;
  for (i = 0; (i < FILENAME_LIST_SIZE) && (preloaded_files[i]); i++)
    files[i] = mus_strdup(preloaded_files[i]);
}


int recent_files_size(void)
{
  /* return how many files in the preloaded list are not currently open (for Open Recent menu item) */
  int i, size = 0;
  for (i = 0; (i < FILENAME_LIST_SIZE) && (preloaded_files[i]); i++)
    if ((!(find_sound(preloaded_files[i], 0))) &&
	(mus_file_probe(preloaded_files[i])))
      size++;
  return(size);
}


char **recent_files(void)
{
  int i, j = 0;
  char **new_list;
  new_list = make_filename_list();
  for (i = 0; (i < FILENAME_LIST_SIZE) && (preloaded_files[i]); i++)
    if ((!(find_sound(preloaded_files[i], 0))) &&
	(mus_file_probe(preloaded_files[i])))
      new_list[j++] = mus_strdup(preloaded_files[i]);
  return(new_list);
}


/* -------------------------------- file filters -------------------------------- */

#define INITIAL_FILE_FILTERS_SIZE 4

Xen g_expand_vector(Xen vector, int new_size)
{
  int i, len;
  Xen new_vect;
  len = Xen_vector_length(vector);
  new_vect = Xen_make_vector(new_size, Xen_false);
  Xen_GC_protect(new_vect);
  for (i = 0; i < len; i++)
    {
      Xen_vector_set(new_vect, i, Xen_vector_ref(vector, i));
      Xen_vector_set(vector, i, Xen_false);
    }
#if HAVE_RUBY || HAVE_FORTH
  Xen_GC_unprotect(vector);
#endif
  return(new_vect);
}


static bool file_filter_ok(Xen name, Xen proc, const char *caller)
{
  char *errmsg;
  Xen_check_type(Xen_is_string(name), name, 1, caller, "a string");   
  Xen_check_type(Xen_is_procedure(proc), proc, 2, caller, "a procedure of 1 arg (filename)");
  errmsg = procedure_ok(proc, 1, caller, "file filter", 2);
  if (errmsg)
    {
      Xen errstr;
      errstr = C_string_to_Xen_string(errmsg);
      free(errmsg);
      snd_bad_arity_error(caller, errstr, proc);
      return(false);
    }
  return(true);
}


static Xen g_add_file_filter(Xen name, Xen proc)
{
  #define H_add_file_filter "(" S_add_file_filter " name proc) -- add proc with identifier name to file filter list. \n\
  (add-file-filter \"just .snd\" \n\
    (lambda (name) \n\
      (string=? \".snd\" (substring name (- (length name) 4)))))\n\
  restricts the displayed files to .snd files."

  if (file_filter_ok(name, proc, S_add_file_filter))
    {
      int i, len;
      len = ss->file_filters_size;
      for (i = 0; i < len; i++)
	{
	  if (Xen_is_false(Xen_vector_ref(ss->file_filters, i)))
	    {
	      Xen_vector_set(ss->file_filters, i, Xen_list_2(name, proc));
	      return(C_int_to_Xen_integer(i));
	    }
	}
      ss->file_filters_size = len * 2;
      ss->file_filters = g_expand_vector(ss->file_filters, ss->file_filters_size);
      Xen_vector_set(ss->file_filters, len, Xen_list_2(name, proc));
      return(C_int_to_Xen_integer(len));
    }
  return(Xen_false);
}


static Xen g_delete_file_filter(Xen index)
{
  #define H_delete_file_filter "(" S_delete_file_filter " index) -- delete proc with identifier index from file filter list"
  int pos;
  Xen_check_type(Xen_is_integer(index), index, 1, S_delete_file_filter, "a file-filter function index");   
  pos = Xen_integer_to_C_int(index);
  if ((pos >= 0) &&
      (pos < ss->file_filters_size))
    {
      Xen_vector_set(ss->file_filters, pos, Xen_false);
    }
  return(index);
}





/* -------------------------------- directory readers -------------------------------- */

static dir_info *make_dir_info(const char *name)
{
  dir_info *dp;
  dp = (dir_info *)calloc(1, sizeof(dir_info));
  dp->files = (sort_info **)calloc(32, sizeof(sort_info *));
  dp->dir_name = mus_strdup(name);
  dp->len = 0;
  dp->size = 32;
  return(dp);
}


static sort_info *make_sort_info(const char *filename, const char *full_filename)
{
  sort_info *ptr;
  ptr = (sort_info *)calloc(1, sizeof(sort_info));
  ptr->filename = mus_strdup(filename); /* not mus_strdup -> these are glomming up memlog */
  ptr->full_filename = mus_strdup(full_filename);
  return(ptr);
}


static sort_info *free_sort_info(sort_info *ptr)
{
  if (ptr)
    {
      if (ptr->filename) free(ptr->filename);
      if (ptr->full_filename) free(ptr->full_filename);
      free(ptr);
    }
  return(NULL);
}

dir_info *free_dir_info(dir_info *dp)
{
  if (dp->dir_name) free(dp->dir_name);
  if (dp->files)
    {
      int i;
      for (i = 0; i < dp->len; i++) 
	if (dp->files[i]) 
	  dp->files[i] = free_sort_info(dp->files[i]);
      free(dp->files);
    }
  free(dp);
  return(NULL);
}
  

static void add_filename_to_dir_info(dir_info *dp, const char *name, const char *fullname)
{
  dp->files[dp->len] = make_sort_info(name, fullname);
  dp->len++;
  if (dp->len == dp->size) 
    {
      int i;
      dp->size += 32;
      dp->files = (sort_info **)realloc(dp->files, dp->size * sizeof(sort_info *));
      for (i = dp->size - 32; i < dp->size; i++) dp->files[i] = NULL;
    }
}


static void load_dir(DIR *dpos, dir_info *dp, bool (*filter)(const char *filename))
{
  struct dirent *dirp;
  char *fullname;
  int fullname_start = 0, path_max = 0;

#ifndef _MSC_VER
  path_max = pathconf("/", _PC_PATH_MAX);
#endif
  if (path_max < 1024)
    {
#if defined(PATH_MAX)
      path_max = PATH_MAX;
      if (path_max < 1024) 
#endif
	path_max = 1024;
    }

  fullname = (char *)calloc(path_max, sizeof(char));
  strcopy(fullname, dp->dir_name, path_max);
  fullname_start = strlen(dp->dir_name);
  while ((dirp = readdir(dpos)))
    if (dirp->d_name[0] != '.')
      {
	strcat(fullname, dirp->d_name);
	if (filter(fullname))
	  add_filename_to_dir_info(dp, dirp->d_name, fullname);
	fullname[fullname_start] = '\0';
      }
  free(fullname);
}


static bool not_is_directory(const char *name)
{
  return(!(is_directory(name)));
}


dir_info *find_files_in_dir(const char *name)
{
#ifdef _MSC_VER
  return(NULL);
#else
  DIR *dpos;
  dir_info *dp = NULL;
  dpos = opendir(name);
  if (dpos)
    {
      dp = make_dir_info(name);
      load_dir(dpos, dp, not_is_directory);
      if (closedir(dpos) != 0) 
	snd_error("closedir %s failed (%s)!",
		  name, snd_io_strerror());
    }
  return(dp);
#endif
}


static Xen filter_func;

static bool filter_xen(const char *name)
{
  return(Xen_boolean_to_C_bool(Xen_call_with_1_arg(filter_func, C_string_to_Xen_string(name), "filter func")));
}


dir_info *find_filtered_files_in_dir(const char *name, int filter_choice)
{
#ifdef _MSC_VER
  return(NULL);
#else
  DIR *dpos;
  dir_info *dp = NULL;
  if ((dpos = opendir(name)))
    {
      bool (*filter)(const char *filename);
      if (filter_choice == JUST_SOUNDS_FILTER)
	filter = is_sound_file;
      else
	{
	  int filter_pos;
	  filter = filter_xen;
	  filter_pos = filter_choice - 2;
	  if ((filter_pos >= 0) &&
	      (filter_pos < ss->file_filters_size))
	    filter_func = Xen_cadr(Xen_vector_ref(ss->file_filters, filter_pos));
	  else
	    {
	      snd_warning("no such file-filter (%d)", filter_pos);
	      closedir(dpos);
	      return(find_files_in_dir(name));
	    }
	}

      dp = make_dir_info(name);
      load_dir(dpos, dp, filter);

      if (closedir(dpos) != 0) 
	snd_error("closedir %s failed (%s)!",
		  name, snd_io_strerror());
    }
  return(dp);
#endif
}


static dir_info *find_files_from_pattern(dir_info *dp, const char *pattern);

dir_info *find_filtered_files_in_dir_with_pattern(const char *name, int filter_choice, const char *pattern)
{
  dir_info *full_dir, *pattern_dir;
  if (filter_choice != NO_FILE_FILTER)
    full_dir = find_filtered_files_in_dir(name, filter_choice);
  else full_dir = find_files_in_dir(name);
  pattern_dir = find_files_from_pattern(full_dir, pattern);
  free_dir_info(full_dir);
  return(pattern_dir);
}


/* -------- sound file extensions list -------- */

static char **sound_file_extensions = NULL;
static int sound_file_extensions_size = 0;
static int sound_file_extensions_end = 0;
static int default_sound_file_extensions = 0;

const char **get_sound_file_extensions(void) {return((const char **)sound_file_extensions);}
int sound_file_extensions_length(void) {return(sound_file_extensions_end);}

static void add_sound_file_extension(const char *ext)
{
  int i;
  if ((!ext) || (!(*ext))) return;

  for (i = 0; i < sound_file_extensions_end; i++)
    if (strcmp(ext, sound_file_extensions[i]) == 0)
      return;
  if (sound_file_extensions_end == sound_file_extensions_size)
    {
      sound_file_extensions_size += 8;
      if (!sound_file_extensions)
	sound_file_extensions = (char **)calloc(sound_file_extensions_size, sizeof(char *));
      else sound_file_extensions = (char **)realloc(sound_file_extensions, sound_file_extensions_size * sizeof(char *));
    }
  sound_file_extensions[sound_file_extensions_end] = mus_strdup(ext);
  sound_file_extensions_end++;
}


void init_sound_file_extensions(void)
{
  add_sound_file_extension("snd");
  add_sound_file_extension("aiff");
  add_sound_file_extension("aif");
  add_sound_file_extension("wav");
  add_sound_file_extension("WAV");
  add_sound_file_extension("au");
  add_sound_file_extension("aifc");
  add_sound_file_extension("voc");
  add_sound_file_extension("wve");
  add_sound_file_extension("sf2");
  add_sound_file_extension("rf64");
  add_sound_file_extension("caf");

#if HAVE_OGG
  add_sound_file_extension("ogg");
#endif

#if HAVE_SPEEX
  add_sound_file_extension("speex"); /* ?? */
#endif

#if HAVE_FLAC
  add_sound_file_extension("flac");
#endif

#if HAVE_MIDI
  add_sound_file_extension("mid");
#endif

#if HAVE_MPEG
  add_sound_file_extension("mpeg");
  add_sound_file_extension("mp3");
#endif

#if HAVE_WAVPACK
  add_sound_file_extension("wv");
#endif

  default_sound_file_extensions = sound_file_extensions_end;
}


void save_added_sound_file_extensions(FILE *fd)
{
  int i;
  if (sound_file_extensions_end > default_sound_file_extensions)
    for (i = default_sound_file_extensions; i < sound_file_extensions_end; i++)
      {
#if HAVE_SCHEME
	fprintf(fd, "(%s \"%s\")\n", S_add_sound_file_extension, sound_file_extensions[i]);
#endif

#if HAVE_RUBY
	fprintf(fd, "%s(\"%s\")\n", to_proc_name(S_add_sound_file_extension), sound_file_extensions[i]);
#endif

#if HAVE_FORTH
	fprintf(fd, "\"%s\" %s drop\n", sound_file_extensions[i], S_add_sound_file_extension);
#endif
      }
}


/* mus_header_read here (or stripped-down equivalent) was very slow, and is just as easy to
 * fool as an extension check (file might start with the word ".snd" or whatever).
 */

bool is_sound_file(const char *name)
{
  int i, dot_loc = -1, len;
  if (!name) return(false);
  len = mus_strlen(name);
  for (i = 0; i < len; i++)
    if (name[i] == '.')
      dot_loc = i;
  /* dot_loc is last dot in the name */
  if ((dot_loc > 0) &&
      (dot_loc < len - 1))
    {
      const char *ext;
      ext = (const char *)(name + dot_loc + 1);
      for (i = 0; i < sound_file_extensions_end; i++)
	if (mus_strcmp(ext, sound_file_extensions[i]))
	  return(true);
    }
  return(false);
}


static bool names_match(const char *filename, const char *pattern)
{
  /* just "*" for wildcards here */
  const char *sn, *sp;
  sn = filename;
  sp = pattern;
  if ((!sn) || (!sp)) 
    {
      if ((sn) || (sp)) 
	return(false); 
      else return(true);
    }
  while ((*sn) && (*sp))
    {
      if ((*sp) == '*') 
	{
	  sp++; 
	  while ((*sp) == '*') sp++; 
	  if (!(*sp)) return(true);
	  while ((*sn) && ((*sn) != (*sp))) sn++;
	  if (!(*sn)) return(false);
	}
      else 
	{
	  if ((*sn) != (*sp)) return(false);
	  sn++; 
	  sp++;
	}
    }
  return(true);
}


static dir_info *find_files_from_pattern(dir_info *dp, const char *pattern)
{
  int i;
  dir_info *ndp;
  ndp = make_dir_info(dp->dir_name);
  for (i = 0; i < dp->len; i++)
    if (names_match(dp->files[i]->filename, pattern))
      add_filename_to_dir_info(ndp, dp->files[i]->filename, dp->files[i]->full_filename);
  return(ndp);
}


/* -------------------------------- Snd title (lists open sounds) -------------------------------- */

typedef struct {
  int active_sounds;
  char **names;
  int *sounds;
} active_sound_list;

static void add_sound_to_active_list(snd_info *sp, void *sptr1)
{
  active_sound_list *sptr = (active_sound_list *)sptr1;
  sptr->names[sptr->active_sounds] = sp->filename;
  sptr->sounds[sptr->active_sounds] = sp->index;
  (sptr->active_sounds)++;
}


void reflect_file_change_in_title(void)
{
  char *title_buffer = NULL;
  active_sound_list *alist;
  int i, j, len;

  alist = (active_sound_list *)calloc(1, sizeof(active_sound_list));
  alist->sounds = (int *)calloc(ss->max_sounds, sizeof(int));
  alist->names = (char **)calloc(ss->max_sounds, sizeof(char *));
  for_each_sound_with_void(add_sound_to_active_list, (void *)alist);

  len = mus_strlen(ss->startup_title) + 32;
  if (alist->active_sounds > 0)
    {
      if (alist->active_sounds < 4) 
	j = alist->active_sounds; 
      else j = 4;
      for (i = 0; i < j; i++)
	len += mus_strlen(filename_without_directory(alist->names[i]));
    }

  title_buffer = (char *)calloc(len, sizeof(char));
  snprintf(title_buffer, len, "%s%s", 
	       ss->startup_title, 
	       ((alist->active_sounds > 0) ? ": " : ""));

  if (alist->active_sounds > 0)
    {
      if (alist->active_sounds < 4) 
	j = alist->active_sounds; 
      else j = 4;
      for (i = 0; i < j; i++)
	{
	  strcat(title_buffer, filename_without_directory(alist->names[i]));
	  if (i < j - 1)
	    strcat(title_buffer, ", ");
	}
      if (alist->active_sounds > 4) 
	strcat(title_buffer, "...");
    }

  set_title(title_buffer);
  free(title_buffer);
  free(alist->sounds);
  free(alist->names);
  free(alist);
}



/* -------------------------------- open sound file -------------------------------- */

static int fallback_srate = 0, fallback_chans = 0;
static mus_sample_t fallback_sample_type = MUS_UNKNOWN_SAMPLE;
static int original_srate = 0, original_chans = 0;
static mus_sample_t original_sample_type = MUS_UNKNOWN_SAMPLE;

void set_fallback_srate(int sr) {fallback_srate = sr;}
void set_fallback_chans(int ch) {fallback_chans = ch;}
void set_fallback_sample_type(mus_sample_t fr) {fallback_sample_type = fr;}


static file_info *make_file_info_1(const char *fullname)
{
  file_info *hdr;
  hdr = (file_info *)calloc(1, sizeof(file_info));
  hdr->name = mus_strdup(fullname);
  hdr->type = mus_sound_header_type(fullname);
  if (hdr->type == MUS_RAW)
    mus_header_raw_defaults(&(hdr->srate), &(hdr->chans), &(hdr->sample_type));
  else
    {
      hdr->srate = mus_sound_srate(fullname);
      original_srate = hdr->srate;
      hdr->chans = mus_sound_chans(fullname);
      original_chans = hdr->chans;
      hdr->sample_type = mus_sound_sample_type(fullname);
      original_sample_type = hdr->sample_type;
    }
  if (!(mus_is_sample_type(hdr->sample_type))) hdr->sample_type = fallback_sample_type;
  if (hdr->srate <= 0) {if (fallback_srate > 0) hdr->srate = fallback_srate; else hdr->srate = 1;}
  if (hdr->chans <= 0) {if (fallback_chans > 0) hdr->chans = fallback_chans; else hdr->chans = 1;}
  hdr->samples = mus_sound_samples(fullname); /* total samples, not per channel */
  if ((hdr->samples == 0) &&
      (hdr->chans > 128))
    {
      snd_warning("no samples, but %d chans?", hdr->chans);
      hdr->chans = 1;
    }
  hdr->data_location = mus_sound_data_location(fullname);
  hdr->comment = mus_sound_comment(fullname);
  hdr->loops = mus_sound_loop_info(fullname);
  return(hdr);
}


file_info *copy_header(const char *fullname, file_info *ohdr)
{
  file_info *hdr;
  hdr = (file_info *)calloc(1, sizeof(file_info));
  hdr->name = mus_strdup(fullname);
  hdr->comment = NULL;
  if (ohdr)
    {
      hdr->samples = ohdr->samples;
      hdr->data_location = ohdr->data_location;
      hdr->srate = ohdr->srate;
      hdr->chans = ohdr->chans;
      hdr->sample_type = ohdr->sample_type;
      hdr->type = ohdr->type;
      if (ohdr->loops)
	{
	  int i;
	  hdr->loops = (int *)calloc(MUS_LOOP_INFO_SIZE, sizeof(int));
	  for (i = 0; i < MUS_LOOP_INFO_SIZE; i++) 
	    hdr->loops[i] = ohdr->loops[i];
	}
    }
  return(hdr);
}


static file_info *translate_file(const char *filename, mus_header_t type)
{
  file_info *hdr = NULL;
  char *newname;
  int *loops = NULL;
  int err, len, fd;

  len = strlen(filename);
  loops = mus_sound_loop_info(filename); /* allocated anew */
  newname = (char *)calloc(len + 5, sizeof(char));
  snprintf(newname, len + 5, "%s.snd", filename);

  /* too many special cases to do anything smart here -- I'll just tack on '.snd' */
  /* before calling the translator we need to check for write-access to the current directory,
   * and if none, try to find a temp directory we can write to.
   *
   * loop info across translation: 4-Dec-01
   */
  fd = CREAT(newname, 0666);
  if (fd == -1)
    {
      char *tempname;
      tempname = snd_tempnam();
      fd = CREAT(tempname, 0666);
      if (fd == -1)
	{
	  if (loops) free(loops);
	  free(newname);
	  free(tempname);
	  snd_error("can't write translation temp file! (%s)", snd_open_strerror());
	  return(NULL);
	}
      free(newname);
      newname = mus_strdup(tempname);
      free(tempname);
    }
  snd_close(fd, newname);
  err = snd_translate(filename, newname, type);
  if (err == MUS_NO_ERROR)
    {
      err = mus_header_read(newname);
      if (err == MUS_NO_ERROR)
	{
	  hdr = make_file_info_1(newname);
	  if (!hdr->loops) 
	    hdr->loops = loops;
	  else 
	    if (loops) free(loops);
	  loops = NULL;
	  ss->translated_filename = mus_strdup(newname);
	}
    }
  else snd_remove(newname, REMOVE_FROM_CACHE);
  if (newname) free(newname);
  if (loops) free(loops);
  return(hdr);
}


static Xen open_raw_sound_hook;

static file_info *open_raw_sound(const char *fullname, read_only_t read_only, bool selected)
{
  Xen res = Xen_false;
  int res_loc = NOT_A_GC_LOC;
  int srate, chans;
  mus_sample_t sample_type;

  if (ss->reloading_updated_file != 0)
    {
      /* choices already made, so just send back a header that reflects those choices */
      return(make_file_info_1(fullname));
    }

  if (Xen_hook_has_list(open_raw_sound_hook))
    {
#if HAVE_SCHEME
      res = s7_call(s7, open_raw_sound_hook, s7_list(s7, 2, C_string_to_Xen_string(fullname), Xen_false)); /* state = #f? */
#else
      Xen arg1, procs;
      procs = Xen_hook_list(open_raw_sound_hook);
      arg1 = C_string_to_Xen_string(fullname);
      while (!Xen_is_null(procs))
	{
	  res = Xen_call_with_2_args(Xen_car(procs), 
			   arg1, 
			   res, 
			   S_open_raw_sound_hook);
	  if (res_loc != NOT_A_GC_LOC) snd_unprotect_at(res_loc);
	  res_loc = snd_protect(res);
	  procs = Xen_cdr(procs);
	}
#endif
    }
  if (Xen_is_list(res)) /* empty list ok here -> accept all current defaults */
    {
      file_info *hdr;
      mus_long_t data_location, bytes;
      int len;

      len = Xen_list_length(res);
      mus_header_raw_defaults(&srate, &chans, &sample_type);
      if (len > 0) chans = Xen_integer_to_C_int(Xen_car(res));
      if (len > 1) srate = Xen_integer_to_C_int(Xen_cadr(res));
      if (len > 2) 
	{
	  Xen df;
	  df = Xen_list_ref(res, 2);
	  sample_type = (mus_sample_t)Xen_integer_to_C_int(df);
	}
      if (len > 3) data_location = Xen_llong_to_C_llong(Xen_list_ref(res, 3)); else data_location = 0;
      if (len > 4) bytes = Xen_llong_to_C_llong(Xen_list_ref(res, 4)); else bytes = mus_sound_length(fullname) - data_location;

      mus_header_set_raw_defaults(srate, chans, sample_type);
      mus_sound_override_header(fullname, 
				srate, chans, sample_type, 
				MUS_RAW, data_location,
				mus_bytes_to_samples(sample_type, bytes));

      if (res_loc != NOT_A_GC_LOC) snd_unprotect_at(res_loc);	      
      hdr = (file_info *)calloc(1, sizeof(file_info));
      hdr->name = mus_strdup(fullname);
      hdr->type = MUS_RAW;
      hdr->srate = mus_sound_srate(fullname);
      hdr->chans = mus_sound_chans(fullname);
      hdr->sample_type = mus_sound_sample_type(fullname);
      hdr->samples = mus_sound_samples(fullname); /* total samples, not per channel */
      if ((hdr->samples == 0) &&
	  (hdr->chans > 8))
	{
	  snd_warning("no samples, but %d chans?", hdr->chans);
	  hdr->chans = 1;
	}
      hdr->data_location = mus_sound_data_location(fullname);
      hdr->comment = NULL;
      return(hdr);
    }
  else 
    {
      bool just_quit = false;
      if (Xen_is_true(res)) just_quit = true;
      if (res_loc != NOT_A_GC_LOC) snd_unprotect_at(res_loc);
      if (just_quit) return(NULL);

      /* open-sound and view-sound do not fall into the raw data dialog */
      if ((ss->open_requestor == FROM_OPEN_SOUND) || 
	  (ss->open_requestor == FROM_VIEW_SOUND) ||
	  (ss->open_requestor == FROM_NEW_SOUND)  ||
	  (ss->open_requestor == FROM_NEW_FILE_DIALOG))
	return(make_file_info_1(fullname));

#if (!USE_NO_GUI)
      {
	char *str;
	str = (char *)calloc(PRINT_BUFFER_SIZE, sizeof(char));
	snprintf(str, PRINT_BUFFER_SIZE, "No header found for %s", filename_without_directory(fullname));
	raw_data_dialog_to_file_info(fullname, str, NULL, read_only, selected); /* dialog frees str */
      }
#else
      fprintf(stderr, "No header found for %s", filename_without_directory(fullname));
#endif
    }
  return(NULL);
}

#if (!USE_NO_GUI)
static char *raw_data_explanation(const char *filename, file_info *hdr, char **info);
#endif


static Xen bad_header_hook;

static file_info *tackle_bad_header(const char *fullname, read_only_t read_only, bool selected)
{
  /* messed up header */
  if ((Xen_hook_has_list(bad_header_hook)) &&
      (Xen_is_true(run_or_hook(bad_header_hook,
			      Xen_list_1(C_string_to_Xen_string(fullname)),
			      S_bad_header_hook))))
    return(NULL);

  /* if not from dialog, throw an error ('bad-header) */
  if ((ss->open_requestor == FROM_OPEN_SOUND) || 
      (ss->open_requestor == FROM_VIEW_SOUND) ||
      (ss->open_requestor == FROM_NEW_SOUND)) /* this case should not happen! */
    {
      const char *caller;
      if (ss->open_requestor == FROM_OPEN_SOUND)
	caller = S_open_sound;
      else caller = S_view_sound;
      Xen_error(BAD_HEADER,
		Xen_list_3(C_string_to_Xen_string("~A: ~S has a bad header?"),
			   C_string_to_Xen_string(caller),
			   C_string_to_Xen_string(fullname)));
      return(NULL);
    }
  
#if (!USE_NO_GUI)
  {
    mus_header_t type;
    type = mus_header_type();
    if ((type != MUS_MIDI_SAMPLE_DUMP) && 
	(type != MUS_IEEE) &&
	(type != MUS_MUS10) && 
	(type != MUS_HCOM) &&
	(!(header_is_encoded(type))))
      {
	char *info = NULL, *title = NULL;
	title = raw_data_explanation(fullname, make_file_info_1(fullname), &info);
	raw_data_dialog_to_file_info(fullname, title, info, read_only, selected);
      }
  }
#endif
  return(NULL);
}


file_info *make_file_info(const char *fullname, read_only_t read_only, bool selected)
{
  file_info *hdr = NULL;
  if (mus_file_probe(fullname))
    {
      mus_header_t type = MUS_UNKNOWN_HEADER;

      /* open-raw-sound will force it to viewed as a raw sound */
      if (ss->open_requestor == FROM_OPEN_RAW_SOUND)
	return(make_file_info_1(fullname));

      type = mus_sound_header_type(fullname);
      if (type == MUS_UNKNOWN_HEADER)        /* if something went wrong */
	type = mus_header_type();            /*    try to read it anyway... */

      /* handle some files directly through the translator (headers here are not readable) */
      if ((type == MUS_MIDI_SAMPLE_DUMP) ||
	  (type == MUS_IEEE) ||
	  (type == MUS_MUS10) ||
	  (type == MUS_HCOM) ||
	  (header_is_encoded(type)))
	{
	  return(translate_file(fullname, type));
	}
	  
      if (mus_is_header_type(type)) 
	{ /* at least the header type seems plausible */
	  /* check header fields */
	  int sr = 0, ch = 0;
	  sr = mus_sound_srate(fullname);
	  ch = mus_sound_chans(fullname);
	  if ((fallback_srate > 0) && ((sr <= 0) || (sr > 100000000))) sr = fallback_srate;
	  if ((fallback_chans > 0) && ((ch >= MUS_MAX_CHANS) || (ch <= 0))) ch = fallback_chans;
	  if ((sr <= 0) || (sr > 100000000) ||
	      (ch >= MUS_MAX_CHANS) || (ch <= 0))
	    return(tackle_bad_header(fullname, read_only, selected));

	  /* header is ok */
	  if (type == MUS_RAW)
	    return(open_raw_sound(fullname, read_only, selected));
	  else
	    {
	      mus_sample_t sample_type;
	      sample_type = mus_sound_sample_type(fullname);
	      if (mus_is_sample_type(sample_type))
		return(make_file_info_1(fullname));
	      return(translate_file(fullname, type));
	    }
	}
      else snd_error("%s does not seem to be a sound file?", fullname); /* no known header */
    }
  else snd_error("can't find file %s: %s", fullname, snd_io_strerror());
  return(hdr);
}


file_info *make_temp_header(const char *fullname, int srate, int chans, mus_long_t samples, const char *caller)
{
  file_info *hdr;
  hdr = (file_info *)calloc(1, sizeof(file_info));
  hdr->name = mus_strdup(fullname);
  hdr->samples = samples;
  hdr->data_location = 28;
  hdr->srate = srate;
  hdr->chans = chans;
  hdr->sample_type = MUS_OUT_SAMPLE_TYPE;
  hdr->type = MUS_NEXT;
  /* want direct read/writes for temp files */
  hdr->comment = mus_strdup(caller);
  return(hdr);
}


file_info *free_file_info(file_info *hdr)
{
  if (hdr)
    {
      if (hdr->name) free(hdr->name);
      if (hdr->comment) free(hdr->comment);
      if (hdr->loops) free(hdr->loops);
      free(hdr);
    }
  return(NULL);
}


static char *opened_sound_file_name(snd_info *sp)
{
  char *newname;
  int len;
  len = strlen(sp->filename);
  newname = (char *)calloc(len + 32, sizeof(char));
  snprintf(newname, len + 32, "%s.%s", sp->filename, Xen_file_extension);
  return(newname);
}


static char *remembered_sound_file_name(snd_info *sp)
{
  char *newname;
  int len;
  len = strlen(sp->filename);
  newname = (char *)calloc(len + 32, sizeof(char));
  snprintf(newname, len + 32, "remembered-%s.%s", sp->short_filename, Xen_file_extension);
  return(newname);
}


static void load_sound_file_extras(snd_info *sp)
{
  char *newname;
  /* possible sound.scm file */
  newname = opened_sound_file_name(sp);
  if (file_write_date(newname) >= sp->write_date)
      snd_load_file(newname);
  free(newname);

  /* remembered-sound.scm -- this is written if remember-sound-state which will also overwrite it */
  if (remember_sound_state(ss))
    {
      newname = remembered_sound_file_name(sp);
      if (file_write_date(newname) >= sp->write_date)
	snd_load_file(newname);
      free(newname);
    }
}


static void remember_sound_file(snd_info *sp)
{
  char *newname;
  FILE *fd;

  newname = remembered_sound_file_name(sp);
  fd = FOPEN(newname, "w");

  if (!fd)
    {
      snd_error("remember sound state can't write %s: %s", newname, snd_io_strerror());
      return;
    }
  sp->remembering = true;
  save_sound_state(sp, fd);
  sp->remembering = false;
  snd_fclose(fd, newname);
  free(newname);
}


static Xen snd_opened_sound;
static Xen open_hook;
static Xen close_hook;
static Xen before_close_hook;
static Xen during_open_hook;
static Xen after_open_hook;

void during_open(int fd, const char *file, open_reason_t reason)
{
  if (Xen_hook_has_list(during_open_hook))
    run_hook(during_open_hook,
	     Xen_list_3(C_int_to_Xen_integer(fd),
			C_string_to_Xen_string(file),
			C_int_to_Xen_integer((int)reason)),
	     S_during_open_hook);
}


void after_open(snd_info *sp)
{
  /* the sync-style choice used to be handled via after-open-hook in extensions.*, but 15-Feb-11 has
   *   been moved into the main Snd.  So here is the code...
   */
  if (sp->nchans > 1)
    {
      switch (sync_style(ss))
	{
	case SYNC_NONE:
	  sp->sync = 0;
	  break;
	  
	case SYNC_ALL:
	  sp->sync = 1;
	  break;
	  
	case SYNC_BY_SOUND:
	  ss->sound_sync_max++;
	  sp->sync = ss->sound_sync_max; /* if we had used (set! (sync) ...) this would be set (via syncb) to the new max */
	  break;
	}
    }
  else sp->sync = 0;
  syncb(sp, sp->sync);

  if (Xen_hook_has_list(after_open_hook))
    run_hook(after_open_hook,
	     Xen_list_1(C_int_to_Xen_sound(sp->index)),
	     S_after_open_hook);

  if (Xen_hook_has_list(ss->snd_open_file_hook))
    run_hook(ss->snd_open_file_hook,
	     Xen_list_1(C_int_to_Xen_integer(FILE_OPENED)),
	     "open-file-hook");

  if (Xen_hook_has_list(ss->effects_hook))
    run_hook(ss->effects_hook, Xen_empty_list, S_effects_hook);
}


snd_info *finish_opening_sound(snd_info *sp, bool selected)
{
  if (sp)
    {
#if HAVE_RUBY || HAVE_FORTH
      Xen_variable_set(S_snd_opened_sound, C_int_to_Xen_sound(sp->index));
#endif

#if HAVE_SCHEME
      Xen_variable_set(snd_opened_sound, C_int_to_Xen_sound(sp->index));
#endif
      sp->write_date = file_write_date(sp->filename); /* redundant (see snd-xsnd.c) */
      sp->need_update = false;
      ss->active_sounds++;
      reflect_file_change_in_title();
      monitor_sound(sp);
    }
  for_each_separate_chan(channel_open_pane);

#if USE_MOTIF
  for_each_separate_chan(channel_unlock_pane);
#endif

  if (sp) 
    {
      add_srate_to_completion_list(snd_srate(sp));
      if ((selected) &&
	  (sp->active) &&
	  (sp->inuse == SOUND_NORMAL))
	select_channel(sp, 0);
      load_sound_file_extras(sp);

      if ((sp->channel_style != CHANNELS_SEPARATE) && 
	  (sp->nchans > 1)) 
	{
	  channel_style_t val;
	  val = sp->channel_style;
	  sp->channel_style = CHANNELS_SEPARATE; 
	  if (val == CHANNELS_COMBINED)
	    combine_sound(sp);
	  else superimpose_sound(sp);
	}
    }
  return(sp);
}


/* (hook-push open-hook (lambda (f) (display f) #f)) */

snd_info *snd_open_file(const char *filename, read_only_t read_only)
{
  file_info *hdr;
  snd_info *sp;
  static char *mcf = NULL;

  if (mcf) free(mcf);
  mcf = mus_expand_filename(filename);
  if (Xen_hook_has_list(open_hook))
    {
      Xen res, fstr;
      fstr = C_string_to_Xen_string(mcf);
      res = run_or_hook(open_hook,
			Xen_list_1(fstr),
			S_open_hook);
      if (Xen_is_true(res))
	{
	  if (mcf) {free(mcf); mcf = NULL;}
	  return(NULL);
	}
      else
	{
	  if (Xen_is_string(res))  /* added 14-Aug-01 for user-supplied auto-translations */
	    {
	      if (mcf) free(mcf);
	      mcf = mus_expand_filename(Xen_string_to_C_string(res));
	    }
	}
    }

  hdr = make_file_info(mcf, read_only, FILE_SELECTED);
  if (!hdr) 
    {
      if (mcf) {free(mcf); mcf = NULL;}
      return(NULL);
    }

  sp = add_sound_window(mcf, read_only, hdr);

  if (mcf) {free(mcf); mcf = NULL;}
  return(finish_opening_sound(sp, FILE_SELECTED));
}


void snd_close_file(snd_info *sp)
{
  Xen res = Xen_false;
  snd_info *chosen_sp = NULL;

  /* before-close-hook can cancel the close, whereas close-hook can't */
  if (Xen_hook_has_list(before_close_hook))
    res = run_or_hook(before_close_hook,
		      Xen_list_1(C_int_to_Xen_sound(sp->index)),
		      S_before_close_hook);
  if (Xen_is_true(res)) return;

#if (!USE_NO_GUI)
  if ((ask_about_unsaved_edits(ss)) &&
      (has_unsaved_edits(sp)))
    {
      save_edits_now(sp);
      return;
    }
  unpost_unsaved_edits_if_any(sp);
  unpost_file_has_changed_if_any(sp);
#endif

  if (peak_env_dir(ss))
    map_over_sound_chans(sp, write_peak_env_info_file);

  if (Xen_hook_has_list(close_hook))
    run_hook(close_hook,
	     Xen_list_1(C_int_to_Xen_sound(sp->index)),
	     S_close_hook);

  if (remember_sound_state(ss))
    remember_sound_file(sp);

  remember_filename(sp->filename, preloaded_files); /* for open dialog(s) previous files list and File:open recent files menu */

  /* an experiment -- event queue seems to be glomming up when lots of fast open/close,
   * but squelch updates just in case a redisplay event is in the queue.  But check_for_event
   * here is dangerous because a channel might be closed and deallocated already, then
   * this check lets a mouse event through, cp->axis is NULL, cp->active has been stomped on,
   * segfault!  
   */

  {
    uint32_t i;
    for (i = 0; i < sp->nchans; i++) 
      sp->chans[i]->squelch_update = true;
    /* check_for_event(); */
    
    sp->file_watcher = unmonitor_file(sp->file_watcher);
    
    /* exit does not go through this function to clean up temps -- see snd_exit_cleanly in snd-main.c */
    if (selection_creation_in_progress()) finish_selection_creation();
    
    if (ss->deferred_regions > 0)
      for (i = 0; i < sp->nchans; i++)
	if (sp->chans[i]) 
	  sequester_deferred_regions(sp->chans[i], -1);
  }
  
  sp->inuse = SOUND_IDLE;
  if (sp->playing) 
    stop_playing_sound(sp, PLAY_CLOSE);

#if (!USE_NO_GUI)
  sp->inuse = SOUND_NORMAL;               /* needed to make sure the status area is actually cleared in set_status */
  set_status(sp, NULL, false); /* false = don't try to update graphs! */
  sp->inuse = SOUND_IDLE;
#endif

  if ((sp == selected_sound()) &&
      (!(ss->exiting)))
    {
      int i, curmax = -1;
      /* look for the last selected sound, if any */
      for (i = 0; i < ss->max_sounds; i++)
	{
	  snd_info *nsp;
	  nsp = ss->sounds[i];
	  if ((nsp) && 
	      (nsp->inuse == SOUND_NORMAL) &&
	      (nsp != sp) &&
	      (nsp->active) &&
	      (nsp->selectpos > curmax))
	    {
	      curmax = nsp->selectpos;
	      chosen_sp = nsp;
	    }
	}
    }

  /* if sequester_deferred_regions is in free_snd_info (moved up to this level 15-12-03)
   *   If the sound is set to SOUND_IDLE, the init function returns 'no-such-sound, and the
   *   subsequent read segfaults.
   */
  free_snd_info(sp);

  ss->active_sounds--;
  reflect_file_change_in_title();
  enved_reflect_selection(selection_is_active());
  reflect_selection_in_save_as_dialog(selection_is_active());

  if (Xen_hook_has_list(ss->snd_open_file_hook))
    run_hook(ss->snd_open_file_hook,
	     Xen_list_1(C_int_to_Xen_integer(FILE_CLOSED)),
	     "open-file-hook");

  if (Xen_hook_has_list(ss->effects_hook))
    run_hook(ss->effects_hook, Xen_empty_list, S_effects_hook);

  if (chosen_sp)
    select_channel(chosen_sp, 0);
  else 
    {
      if (sp == selected_sound())
	ss->selected_sound = NO_SELECTION;

      if ((!(ss->exiting)) && 
	  (!any_selected_sound())) /* I hope this can't be fooled... */
	reset_mix_ctr();
    }
  
  reflect_save_as_sound_selection(NULL);
}


#define TEMP_SOUND_INDEX 123456
/* just a marker for debugging -- but it actually appears in things like start-playing-hook!
 */


snd_info *make_sound_readable(const char *filename, bool post_close)
{
  /* conjure up just enough Snd structure to make this sound readable by the edit-tree readers */
  snd_info *sp;
  chan_info *cp;
  file_info *hdr = NULL;
  int i;
  mus_long_t len;
  /* we've already checked that filename exists */

  hdr = make_file_info_1(filename);
  sp = make_basic_snd_info(hdr->chans);
  sp->nchans = hdr->chans;
  sp->hdr = hdr;
  sp->inuse = SOUND_READER;
  initialize_control_panel(sp);
  sp->index = TEMP_SOUND_INDEX;
  len = (hdr->samples) / (hdr->chans);

  for (i = 0; i < (int)sp->nchans; i++)
    {
      int fd;
      cp = make_chan_info(NULL, i, sp);
      cp->editable = false;
      free(cp->ax);
      cp->ax = NULL;
      sp->chans[i] = cp;
      add_channel_data_1(cp, hdr->srate, len, WITHOUT_GRAPH);

      fd = snd_open_read(filename); /* sends the error if any */
      if (fd != -1)
	set_up_snd_io(cp, i, fd, filename, hdr, post_close);
    }
  sp->active = true;
  return(sp);
}


axes_data *free_axes_data(axes_data *sa)
{
  if (sa)
    {
      if (sa->axis_data) {free(sa->axis_data); sa->axis_data = NULL;}
      if (sa->fftp) {free(sa->fftp); sa->fftp = NULL;}
      if (sa->wavep) {free(sa->wavep); sa->wavep = NULL;}
      free(sa);
    }
  return(NULL);
}


enum {SA_X0, SA_X1, SA_Y0, SA_Y1, SA_XMIN, SA_XMAX, SA_YMIN, SA_YMAX, SA_ZX, SA_ZY, SA_SX, SA_SY, SA_GSY, SA_GZY};
#define SA_FIELDS 14

axes_data *make_axes_data(snd_info *sp)
{
  axes_data *sa;
  int i;
  sa = (axes_data *)calloc(1, sizeof(axes_data));
  sa->chans = sp->nchans;
  sa->fields = SA_FIELDS;
  sa->axis_data = (double *)calloc(sa->fields * sa->chans, sizeof(double));
  sa->fftp = (bool *)calloc(sa->chans, sizeof(bool));
  sa->wavep = (bool *)calloc(sa->chans, sizeof(bool));
  for (i = 0; i < sa->chans; i++)
    {
      chan_info *cp;
      axis_info *ap;
      int loc;
      cp = sp->chans[i];
      ap = cp->axis;
      loc = i * sa->fields;
      sa->axis_data[loc + SA_X0] = ap->x0;
      sa->axis_data[loc + SA_X1] = ap->x1;
      sa->axis_data[loc + SA_Y0] = ap->y0;
      sa->axis_data[loc + SA_Y1] = ap->y1;
      sa->axis_data[loc + SA_XMIN] = ap->xmin;
      sa->axis_data[loc + SA_XMAX] = ap->xmax;
      sa->axis_data[loc + SA_YMIN] = ap->ymin;
      sa->axis_data[loc + SA_YMAX] = ap->ymax;
      sa->axis_data[loc + SA_ZX] = ap->zx;
      sa->axis_data[loc + SA_SX] = ap->sx;
      sa->axis_data[loc + SA_ZY] = ap->zy;
      sa->axis_data[loc + SA_SY] = ap->sy;
      sa->axis_data[loc + SA_GSY] = cp->gsy;
      sa->axis_data[loc + SA_GZY] = cp->gzy;
      sa->wavep[i] = cp->graph_time_on;
      sa->fftp[i] = cp->graph_transform_on;
      
      /* unite and sync buttons are being cleared in snd_info_cleanup and explicitly in snd_update
       *   then probably reset in change_channel_style
       *   meanwhile channel_style is saved in copy_snd_info below
       *   but also restored explicitly in snd_update.
       *   but... if unite was off  before the update, it seems that it is set on multi-channel files 
       *    (via channel_style(ss) which defaults to channels_combined)
       */
    }
  return(sa);
}


void restore_axes_data(snd_info *sp, axes_data *sa, mus_float_t new_duration, bool need_edit_history_update)
{
  int i, j;
  for (i = 0, j = 0; i < (int)sp->nchans; i++)
    {
      chan_info *cp;
      axis_info *ap;
      int loc;

      cp = sp->chans[i];
      loc = j * sa->fields;

      if ((show_full_duration(ss)) &&
	  (sa->axis_data[loc + SA_X0] == 0.0) &&
	  (sa->axis_data[loc + SA_X1] == sa->axis_data[loc + SA_XMAX]))
	{
	  /* we were viewing the full duration when the update occurred, and show-full-duration is #t,
	   *   so show the full new duration.
	   */
	  sa->axis_data[loc + SA_X1] = new_duration;                             /* new x1 */
	}
      else
	{
	  mus_float_t old_duration;                                            /* old duration is x1 - x0 */
	  old_duration = sa->axis_data[loc + SA_X1] - sa->axis_data[loc + SA_X0];  
	  if (new_duration < sa->axis_data[loc + SA_X0])                       /* new duration < old x0 */
	    sa->axis_data[loc + SA_X0] = new_duration - old_duration;          /* try to maintain old window size */
	  if (sa->axis_data[loc + SA_X0] < 0.0) 
	    sa->axis_data[loc + SA_X0] = 0.0;
	  if (new_duration < sa->axis_data[loc + SA_X1]) 
	    sa->axis_data[loc + SA_X1] = new_duration;                         /* new x1 */
	}
      sa->axis_data[loc + SA_XMAX] = new_duration;                             /* new xmax */

      ap = cp->axis;
      ap->xmin = sa->axis_data[loc + SA_XMIN];
      ap->xmax = sa->axis_data[loc + SA_XMAX];
      /* zx and sx are reset by set_axes below? */
      ap->zx = sa->axis_data[loc + SA_ZX];
      ap->sx = sa->axis_data[loc + SA_SX];

      ap->x_ambit = ap->xmax - ap->xmin;
      
      if (!show_full_range(ss))
	{
	  ap->ymin = sa->axis_data[loc + SA_YMIN];
	  ap->ymax = sa->axis_data[loc + SA_YMAX];
	  ap->zy = sa->axis_data[loc + SA_ZY];
	  ap->sy = sa->axis_data[loc + SA_SY];
	  ap->y_ambit = ap->ymax - ap->ymin;
	}
      else
	{
	  sa->axis_data[loc + SA_Y0] = ap->y0;
	  sa->axis_data[loc + SA_Y1] = ap->y1;
	}

      cp->gzy = sa->axis_data[loc + SA_GZY];
      cp->gsy = sa->axis_data[loc + SA_GSY];

      set_axes(cp,
	       sa->axis_data[loc + SA_X0], 
	       sa->axis_data[loc + SA_X1], 
	       sa->axis_data[loc + SA_Y0], 
	       sa->axis_data[loc + SA_Y1]);

      set_z_scrollbars(cp, ap);

      if ((cp->chan == 0) &&
	  (cp->gzy != 1.0))
	change_gzy(cp->gzy, cp); /* also fixes gsy slider */

      update_graph(cp); /* get normalized state before messing with it */

      if (sa->fftp[j]) 
	fftb(cp, true); 

      if (!(sa->wavep[j])) 
	waveb(cp, false); 

      if (need_edit_history_update) 
	reflect_edit_history_change(cp);

      if (j < (sa->chans - 1)) j++;
    }
}


static void copy_chan_info(chan_info *ncp, chan_info *ocp)
{
  ncp->cursor_on = ocp->cursor_on;
  ncp->cursor_style = ocp->cursor_style;
  ncp->tracking_cursor_style = ocp->tracking_cursor_style;
  ncp->cursor_size = ocp->cursor_size;
  ncp->spectro_x_scale = ocp->spectro_x_scale;
  ncp->spectro_y_scale = ocp->spectro_y_scale;
  ncp->spectro_z_scale = ocp->spectro_z_scale;
  ncp->spectro_z_angle = ocp->spectro_z_angle;
  ncp->spectro_x_angle = ocp->spectro_x_angle;
  ncp->spectro_y_angle = ocp->spectro_y_angle;
  ncp->spectrum_end = ocp->spectrum_end;
  ncp->spectrum_start = ocp->spectrum_start;
  ncp->lin_dB = ocp->lin_dB;
  ncp->min_dB = ocp->min_dB;
  ncp->fft_window_alpha = ocp->fft_window_alpha;
  ncp->fft_window_beta = ocp->fft_window_beta;
  ncp->beats_per_minute = ocp->beats_per_minute;
  ncp->beats_per_measure = ocp->beats_per_measure;
  ncp->show_y_zero = ocp->show_y_zero;
  ncp->show_grid = ocp->show_grid;
  ncp->grid_density = ocp->grid_density;
  ncp->show_sonogram_cursor = ocp->show_sonogram_cursor;
  ncp->show_marks = ocp->show_marks;
  ncp->wavo_hop = ocp->wavo_hop;
  ncp->wavo_trace = ocp->wavo_trace;
  ncp->zero_pad = ocp->zero_pad;
  ncp->x_axis_style = ocp->x_axis_style;
  ncp->wavelet_type = ocp->wavelet_type;
  ncp->with_verbose_cursor = ocp->with_verbose_cursor;
  ncp->max_transform_peaks = ocp->max_transform_peaks;
  ncp->show_transform_peaks = ocp->show_transform_peaks;
  ncp->show_axes = ocp->show_axes;
  ncp->time_graph_style = ocp->time_graph_style;
  ncp->lisp_graph_style = ocp->lisp_graph_style;
  ncp->transform_graph_style = ocp->transform_graph_style;
  ncp->fft_log_frequency = ocp->fft_log_frequency;
  ncp->fft_log_magnitude = ocp->fft_log_magnitude;
  ncp->transform_size = ocp->transform_size;
  ncp->transform_graph_type = ocp->transform_graph_type;
  ncp->fft_window = ocp->fft_window;
  ncp->time_graph_type = ocp->time_graph_type;
  ncp->dot_size = ocp->dot_size;
  ncp->transform_normalization = ocp->transform_normalization;
  ncp->transform_type = ocp->transform_type;
  ncp->show_mix_waveforms = ocp->show_mix_waveforms;
  ncp->spectro_hop = ocp->spectro_hop;
  ncp->graphs_horizontal = ocp->graphs_horizontal;
  ncp->cursor_proc = ocp->cursor_proc;
  if (Xen_is_bound(ncp->cursor_proc)) 
    ncp->cursor_proc_loc = snd_protect(ncp->cursor_proc);
  else ncp->cursor_proc_loc = NOT_A_GC_LOC;
}


static void copy_snd_info(snd_info *nsp, snd_info *osp)
{
  nsp->speed_control_style = osp->speed_control_style;
  nsp->speed_control_tones = osp->speed_control_tones;
  nsp->expand_control_length = osp->expand_control_length;
  nsp->expand_control_ramp = osp->expand_control_ramp;
  nsp->expand_control_hop = osp->expand_control_hop;
  nsp->expand_control_jitter = osp->expand_control_jitter;
  nsp->contrast_control_amp = osp->contrast_control_amp;
  nsp->reverb_control_feedback = osp->reverb_control_feedback;
  nsp->reverb_control_lowpass = osp->reverb_control_lowpass;
  nsp->reverb_control_decay = osp->reverb_control_decay;
  nsp->channel_style = osp->channel_style;
  nsp->sync = osp->sync;
}


static snd_info *sound_store_chan_info(snd_info *sp)
{
  chan_info **cps;
  snd_info *nsp;
  uint32_t i;

  nsp = (snd_info *)calloc(1, sizeof(snd_info));
  cps = (chan_info **)calloc(sp->nchans, sizeof(chan_info *));
  nsp->chans = cps;
  nsp->nchans = sp->nchans;
  copy_snd_info(nsp, sp);
  for (i = 0; i < sp->nchans; i++)
    {
      cps[i] = (chan_info *)calloc(1, sizeof(chan_info));
      copy_chan_info(cps[i], sp->chans[i]);
    }
  return(nsp);
}


static void sound_restore_chan_info(snd_info *nsp, snd_info *osp)
{
  uint32_t i;
  chan_info **cps;

  cps = osp->chans;
  copy_snd_info(nsp, osp);
  for (i = 0; i < nsp->nchans; i++)
    {
      copy_chan_info(nsp->chans[i], cps[i]);
      if (Xen_is_bound(cps[i]->cursor_proc))
	{
	  snd_unprotect_at(cps[i]->cursor_proc_loc);
	  cps[i]->cursor_proc = Xen_undefined;
	  cps[i]->cursor_proc_loc = NOT_A_GC_LOC;
	}
    }
}


static Xen update_hook;

snd_info *snd_update(snd_info *sp)
{
  /* we can't be real smart here because the channel number may have changed and so on */
  int i, old_srate, old_chans, sp_chans, old_index, gc_loc = NOT_A_GC_LOC, old_selected_channel = NO_SELECTION;
  mus_sample_t old_sample_type;
  channel_style_t old_channel_style;
  read_only_t read_only;
  bool old_raw;
  axes_data *sa;
  snd_info *nsp = NULL;
  char *filename;
  void *ms;
  snd_info *saved_sp;
  struct ctrl_state *saved_controls;
  mus_long_t *old_cursors;
  void *old_file_watcher;
  Xen update_hook_result = Xen_false;
  const char *ur_filename;
  int app_x, app_y;

#if USE_MOTIF
  int snd_height;
  snd_height = snd_pane_height(sp);
#endif

  if (sp->edited_region) return(sp);
  if ((sp->inuse != SOUND_NORMAL) ||
      (!(sp->filename)))
    return(sp);

  if (mus_file_probe(sp->filename) == 0)
    {
      snd_error("%s no longer exists!", sp->short_filename);
      return(sp);
    }

  app_x = widget_width(main_shell(ss));
  app_y = widget_height(main_shell(ss));
  ur_filename = sp->filename;

  if (peak_env_dir(ss))
    for_each_sound_chan(sp, delete_peak_env_info_file);

  if (with_inset_graph(ss))
    for_each_sound_chan(sp, clear_inset_graph);

  if (Xen_hook_has_list(update_hook))
    {
      /* #t => return without updating (not recommended!!), proc of 1 arg will be evaluated after update is complete */
      update_hook_result = run_or_hook(update_hook, 
				       Xen_list_1(C_int_to_Xen_sound(sp->index)),
				       S_update_hook);
      if (Xen_is_true(update_hook_result)) return(sp);
      if (Xen_is_procedure(update_hook_result))
	{
	  if (Xen_is_aritable(update_hook_result, 1))
	    gc_loc = snd_protect(update_hook_result);
	  else Xen_bad_arity_error(S_update_hook, 0, update_hook_result, S_update_hook " function result should require 1 arg");
	}
    }

  filename = mus_strdup(ur_filename);
  read_only = sp->user_read_only;
  if (sp->nchans > 1)
    ss->update_sound_channel_style = sp->channel_style;
  sa = make_axes_data(sp);
  old_raw = (sp->hdr->type == MUS_RAW);
  if (old_raw)
    {
      mus_header_raw_defaults(&old_srate, &old_chans, &old_sample_type);
      mus_header_set_raw_defaults(sp->hdr->srate, sp->hdr->chans, sp->hdr->sample_type);
    }

  if (sp == selected_sound())
    old_selected_channel = sp->selected_channel;

  sp_chans = sp->nchans;
  old_index = sp->index;
  old_channel_style = sp->channel_style;
  if (sp->channel_style != CHANNELS_SEPARATE)
    set_sound_channel_style(sp, CHANNELS_SEPARATE);

  ms = (void *)sound_store_marks(sp);
  save_controls(sp);
  saved_controls = sp->saved_controls;
  sp->saved_controls = NULL;
  saved_sp = sound_store_chan_info(sp);
  old_cursors = (mus_long_t *)calloc(sp_chans, sizeof(mus_long_t));

  /* peak-env code saves the current peak-envs on exit (snd_close), but in this case, that
   *   data is known to be out-of-date.  Since we'll be freeing it eventually anyway, we
   *   do it first here, and the peak-env update-hook clobbers the existing files
   */
  for (i = 0; i < sp_chans; i++) 
    {
      chan_info *ncp;
      int k;
      ncp = sp->chans[i];
      old_cursors[i] = cursor_sample(ncp);
      for (k = 0; k < ncp->edit_size; k++)
	{
	  ed_list *ed;
	  ed = ncp->edits[k];
	  if (ed)
	    ed->peak_env = free_peak_env(ncp, k);
	}
    }
  old_file_watcher = sp->file_watcher; /* will be unmonitored in snd_close_file, but we need to know if it is being monitored now */

  snd_close_file(sp);

  /* no mus_sound_forget here because we may be simply re-interpreting the existing data (set! (sample-type) ...) etc */
  /* this normalizes the fft/lisp/wave state so we need to reset it after reopen */

#if USE_MOTIF
  if (!(ss->file_monitor_ok))
    alert_new_file();
#endif

  ss->reloading_updated_file = (old_index + 1);
  ss->open_requestor = FROM_UPDATE;

  nsp = snd_open_file(filename, read_only);

#if USE_MOTIF
  XtVaSetValues(w_snd_pane(sp),
		    XmNpaneMinimum, snd_height,
		    XmNpaneMaximum, snd_height,
		    NULL);
#endif
  set_widget_size(main_shell(ss), app_x, app_y); /* was at end */

  ss->reloading_updated_file = 0;
  if (old_raw)
    mus_header_set_raw_defaults(old_srate, old_chans, old_sample_type);
  if (nsp)
    {
      /* if header is bad, nsp can be null awaiting raw data dialog's return */

      if ((old_file_watcher) &&
	  (!(nsp->file_watcher)))
	monitor_sound(nsp);
      /* might be a different sp as well as underlying file */

      nsp->saved_controls = saved_controls;
      if (saved_controls) restore_controls(nsp);
      if ((int)nsp->nchans == sp_chans) sound_restore_chan_info(nsp, saved_sp);

      if ((old_selected_channel != NO_SELECTION) &&
	  (old_selected_channel < (int)nsp->nchans) &&
	  (nsp == selected_sound()))
	select_channel(nsp, old_selected_channel);

      restore_axes_data(nsp, sa, mus_sound_duration(filename), false);
      sound_restore_marks(nsp, ms);

      for (i = 0; (i < (int)nsp->nchans) && (i < sp_chans); i++) 
	cursor_sample(nsp->chans[i]) = old_cursors[i];

      if ((nsp->nchans > 1) && 
	  (old_channel_style != CHANNELS_SEPARATE)) /* we set it to separate before the update */
	set_sound_channel_style(nsp, old_channel_style);
    }

  free(old_cursors);

  if (Xen_is_procedure(update_hook_result))
    {
      Xen_call_with_1_arg(update_hook_result,
		 (nsp) ? C_int_to_Xen_sound(nsp->index) : Xen_false,
		 "procedure returned by " S_update_hook);
      if (gc_loc != NOT_A_GC_LOC) snd_unprotect_at(gc_loc);
    }

  if (saved_sp)
    {
      for (i = 0; i < (int)saved_sp->nchans; i++)
	if (saved_sp->chans[i]) free(saved_sp->chans[i]);
      free(saved_sp->chans);
      free(saved_sp);
    }
  free_axes_data((axes_data *)sa);
  free(filename);

#if USE_MOTIF
  XtVaSetValues(w_snd_pane(sp),
		    XmNpaneMinimum, 1,
		    XmNpaneMaximum, LOTSA_PIXELS,
		    NULL);
#endif

  return(nsp);
}


static void snd_update_warning_handler(const char *msg, void *data)
{
  set_status((snd_info *)data, msg, false);
}


static void snd_update_error_handler(const char *msg, void *data)
{
  redirect_snd_error_to(NULL, NULL);
  redirect_snd_warning_to(NULL, NULL);
  Xen_error(Xen_make_error_type("cant-update-file"),
	    Xen_list_3(C_string_to_Xen_string("~A: ~A"),
		       C_string_to_Xen_string((char *)data),
		       C_string_to_Xen_string(msg)));
}


snd_info *snd_update_within_xen(snd_info *sp, const char *caller)
{
  snd_info *nsp;
  redirect_snd_error_to(snd_update_error_handler, (void *)caller);
  redirect_snd_warning_to(snd_update_warning_handler, (void *)sp);
  nsp = snd_update(sp);
  redirect_snd_error_to(NULL, NULL);
  redirect_snd_warning_to(NULL, NULL);
  return(nsp);
}


static Xen after_save_as_hook;

void run_after_save_as_hook(snd_info *sp, const char *already_saved_as_name, bool from_save_as_dialog)
{
  /* might be save-selection, as well as save-sound-as */
  if (Xen_hook_has_list(after_save_as_hook))
    {
      char *fullname;
      fullname = mus_expand_filename(already_saved_as_name);
      run_progn_hook(after_save_as_hook,
		     Xen_list_3((sp) ? C_int_to_Xen_sound(sp->index) : Xen_false,
				C_string_to_Xen_string(fullname),
				C_bool_to_Xen_boolean(from_save_as_dialog)),
		     S_after_save_as_hook);
      free(fullname);
    }
}


static Xen before_save_as_hook;
static bool before_save_as_hook_active = false;

bool run_before_save_as_hook(snd_info *sp, const char *save_as_filename, bool selection, int srate, 
			     mus_sample_t smp_type, mus_header_t hd_type, const char *comment)
{
  /* might be save-selection, as well as save-sound-as */
  if (before_save_as_hook_active) return(false);
  if (Xen_hook_has_list(before_save_as_hook))
    {
      Xen result;
      before_save_as_hook_active = true;
      result = run_progn_hook(before_save_as_hook,
			      Xen_list_7((sp) ? C_int_to_Xen_sound(sp->index) : Xen_false,
					 C_string_to_Xen_string(save_as_filename),
					 C_bool_to_Xen_boolean(selection),
					 C_int_to_Xen_integer(srate),
					 C_int_to_Xen_integer((int)smp_type),
					 C_int_to_Xen_integer((int)hd_type),
					 (comment) ? C_string_to_Xen_string(comment) : Xen_false),
			      S_before_save_as_hook);
      before_save_as_hook_active = false;
      return(Xen_is_true(result));
    }
  return(false);
}


/* -------- file dialog header/data choices -------- */

enum {H_NEXT, H_AIFC, H_RIFF, H_RF64, H_RAW, H_AIFF, H_IRCAM, H_NIST, H_CAFF, /* the "built-in" choices for output */
      H_OGG, H_FLAC, H_SPEEX, H_WAVPACK,                                      /* readable/writable via external programs */
      H_MPEG, H_MIDI,                                                         /* readable via external programs */
      H_SIZE};

static int h_num_sample_types[H_SIZE] = {12 /* next */, 13 /* aifc */,  8 /* riff */, 8 /* rf64 */, 18 /* raw */, 4 /* aiff */, 5  /* ircam */, 7 /* nist */, 13 /* caff */,
				    1 /* ogg */,  1  /* flac */,  1 /* speex */, 1 /*wavpack */,
				    1 /* mpeg */, 1  /* midi */};
#define H_DFS_MAX 18

static mus_sample_t h_dfs[H_SIZE][H_DFS_MAX] = { /* next */  {MUS_BFLOAT, MUS_BSHORT, MUS_LSHORT, MUS_LFLOAT, 
						     MUS_MULAW, MUS_BYTE, MUS_BINT, MUS_ALAW, MUS_B24INT, MUS_BDOUBLE, MUS_LINT, MUS_LDOUBLE},
					/* aifc */  {MUS_BFLOAT, MUS_BSHORT, MUS_MULAW, MUS_BYTE, MUS_BINT, MUS_ALAW, MUS_B24INT,
						     MUS_BDOUBLE, MUS_UBYTE, MUS_LSHORT, MUS_LINT, MUS_L24INT, MUS_UBSHORT},
					/* riff */  {MUS_LFLOAT, MUS_LSHORT, MUS_MULAW, MUS_ALAW, MUS_UBYTE, MUS_LINT, MUS_LDOUBLE, MUS_L24INT},
					/* rf64 */  {MUS_LFLOAT, MUS_LSHORT, MUS_MULAW, MUS_ALAW, MUS_UBYTE, MUS_LINT, MUS_LDOUBLE, MUS_L24INT},
					/* raw  */  {MUS_BFLOAT, MUS_LFLOAT, MUS_BSHORT, MUS_MULAW, MUS_BYTE, MUS_BINT, MUS_ALAW,
						     MUS_UBYTE, MUS_B24INT, MUS_BDOUBLE, MUS_LSHORT, MUS_LINT,
						     MUS_LDOUBLE, MUS_UBSHORT, MUS_ULSHORT, MUS_L24INT, MUS_BINTN, MUS_LINTN},
					/* aiff */  {MUS_BSHORT, MUS_BINT, MUS_BYTE, MUS_B24INT},
					/* ircam */ {MUS_BFLOAT, MUS_BSHORT, MUS_MULAW, MUS_BINT, MUS_ALAW},
					/* nist */  {MUS_BSHORT, MUS_LSHORT, MUS_BINT, MUS_LINT, MUS_BYTE, MUS_B24INT, MUS_L24INT},
					/* caff  */ {MUS_BFLOAT, MUS_BSHORT, MUS_LFLOAT, MUS_LSHORT, MUS_MULAW, MUS_BYTE, MUS_BINTN, MUS_ALAW,
						     MUS_B24INT, MUS_BDOUBLE, MUS_LINTN, MUS_L24INT, MUS_LDOUBLE},
					/* ogg */   {MUS_LSHORT},
					/* flac */  {MUS_LSHORT},
					/* speex */ {MUS_LSHORT},
					/* wavpack */ {MUS_LSHORT},
					/* readonly */  {MUS_UNKNOWN_SAMPLE}, {MUS_UNKNOWN_SAMPLE}
};
static const char *h_df_names[H_SIZE][H_DFS_MAX];

static const char *h_names[H_SIZE] = {"au/next  ", "aifc   ", "wave   ", "rf64  ", "raw    ", "aiff   ", "ircam ", "nist  ", "caff  ",
				      "ogg   ", "flac  ", "speex ", "wavpack",
				      "mpeg  ", "midi  "};
static mus_header_t h_pos_to_type[H_SIZE] = {MUS_NEXT, MUS_AIFC, MUS_RIFF, MUS_RF64, MUS_RAW, MUS_AIFF, MUS_IRCAM, MUS_NIST, MUS_CAFF, 
					     MUS_UNKNOWN_HEADER, MUS_UNKNOWN_HEADER, MUS_UNKNOWN_HEADER, MUS_UNKNOWN_HEADER, 
					     MUS_UNKNOWN_HEADER, MUS_UNKNOWN_HEADER};
static int h_type_to_pos[MUS_NUM_HEADERS];
static int h_type_to_h[MUS_NUM_HEADERS];


static const char *sample_type_name(mus_sample_t sample_type)
{
  switch (sample_type)
    {
    case MUS_BSHORT:           return("16-bit int (be)");      
    case MUS_MULAW:            return("mulaw");                
    case MUS_BYTE:             return("8-bit int");            
    case MUS_BFLOAT:           return("float (be)");           
    case MUS_BFLOAT_UNSCALED:  return("float unscaled (be))"); 
    case MUS_BINT:             return("32-bit int (be)");      
    case MUS_ALAW:             return("alaw");                 
    case MUS_UBYTE:            return("unsigned byte");        
    case MUS_B24INT:           return("24-bit int (be)");      
    case MUS_BDOUBLE:          return("double (be)");          
    case MUS_BDOUBLE_UNSCALED: return("double unscaled (be)"); 
    case MUS_LSHORT:           return("16-bit int (le)");      
    case MUS_LINT:             return("32-bit int (le)");      
    case MUS_LFLOAT:           return("float (le)");           
    case MUS_LDOUBLE:          return("double (le)");          
    case MUS_LFLOAT_UNSCALED:  return("float unscaled (le)");  
    case MUS_LDOUBLE_UNSCALED: return("double unscaled (le)"); 
    case MUS_UBSHORT:          return("unsigned short (be)");  
    case MUS_ULSHORT:          return("unsigned short (le)");  
    case MUS_L24INT:           return("24-bit int (le)");      
    case MUS_BINTN:            return("normalized int (be)");  
    case MUS_LINTN:            return("normalized int (le)");  
    default:                   return("unknown");              
    }
}

void initialize_sample_type_lists(void)
{
  int i, h;

  for (h = 0; h < H_SIZE; h++)
    for (i = 0; i < h_num_sample_types[h]; i++)
      h_df_names[h][i] = sample_type_name(h_dfs[h][i]);
  
  for (i = 0; i < MUS_NUM_HEADERS; i++)
    {
      h_type_to_pos[i] = -1;
      h_type_to_h[i] = -1;
    }
  h_type_to_pos[MUS_NEXT] = 0;
  h_type_to_pos[MUS_AIFC] = 1;
  h_type_to_pos[MUS_RIFF] = 2;
  h_type_to_pos[MUS_RF64] = 3;
  h_type_to_pos[MUS_RAW] = 4;
  h_type_to_pos[MUS_AIFF] = 5;
  h_type_to_pos[MUS_IRCAM] = 6;
  h_type_to_pos[MUS_NIST] = 7;
  h_type_to_pos[MUS_CAFF] = 8;

  h_type_to_h[MUS_NEXT] = H_NEXT;
  h_type_to_h[MUS_AIFC] = H_AIFC;
  h_type_to_h[MUS_RIFF] = H_RIFF;
  h_type_to_h[MUS_RF64] = H_RF64;
  h_type_to_h[MUS_RAW] = H_RAW;
  h_type_to_h[MUS_AIFF] = H_AIFF;
  h_type_to_h[MUS_IRCAM] = H_IRCAM;
  h_type_to_h[MUS_NIST] = H_NIST;
  h_type_to_h[MUS_CAFF] = H_CAFF;
  h_type_to_h[MUS_OGG] = H_OGG;
  h_type_to_h[MUS_FLAC] = H_FLAC;
  h_type_to_h[MUS_SPEEX] = H_SPEEX;
  h_type_to_h[MUS_MIDI] = H_MIDI;
  h_type_to_h[MUS_MPEG] = H_MPEG;
  h_type_to_h[MUS_WAVPACK] = H_WAVPACK;
  
  i = 9;
  /* readable/writable */
#if HAVE_OGG
  h_type_to_pos[MUS_OGG] = i;
  h_pos_to_type[i++] = MUS_OGG;
#endif

#if HAVE_FLAC
  h_type_to_pos[MUS_FLAC] = i;
  h_pos_to_type[i++] = MUS_FLAC;
#endif

#if HAVE_SPEEX
  h_type_to_pos[MUS_SPEEX] = i;
  h_pos_to_type[i++] = MUS_SPEEX;
#endif

#if HAVE_WAVPACK
  h_type_to_pos[MUS_WAVPACK] = i;
  h_pos_to_type[i++] = MUS_WAVPACK;
#endif

  /* readable */
#if HAVE_MPEG
  h_type_to_pos[MUS_MPEG] = i;
  h_pos_to_type[i++] = MUS_MPEG;
#endif

#if HAVE_MIDI
  h_type_to_pos[MUS_MIDI] = i;
  h_pos_to_type[i++] = MUS_MIDI;
#endif
}


#define NUM_BUILTIN_HEADERS 9
#define NUM_POSSIBLE_HEADERS 16
static const char **writable_headers = NULL;
static const char **readable_headers = NULL;
static int num_writable_headers = NUM_BUILTIN_HEADERS;
static int num_readable_headers = NUM_BUILTIN_HEADERS;


const char **short_builtin_headers(int *len)
{
  (*len) = NUM_BUILTIN_HEADERS;
  return(h_names);
}


const char **short_writable_headers(int *len)
{
  /* these are headers that we either write ourself, or have external programs to write (oggenc etc) */
  if (!writable_headers)
    {
      int i;
      writable_headers = (const char **)calloc(NUM_POSSIBLE_HEADERS, sizeof(char *));
      for (i = 0; i < NUM_BUILTIN_HEADERS; i++)
	writable_headers[i] = h_names[i];
#if HAVE_OGG
      /* write temp as RIFF 16-bit lshort, then
	 oggenc tempfile.wav -o outoggfile.ogg
	 -q 6 sets to higher quality -- add as arg somehow?
	 so format here is just the ogg output format: nothing settable
      */
      writable_headers[i++] = h_names[H_OGG];
#endif

#if HAVE_FLAC
      /* flac tempfile.wav -o output.flac */
      writable_headers[i++] = h_names[H_FLAC];
#endif

#if HAVE_SPEEX
      /* speexenc tempfile.wav output.spx */
      writable_headers[i++] = h_names[H_SPEEX];
#endif

#if HAVE_WAVPACK
      /* wavpack in -o out */
      writable_headers[i++] = h_names[H_WAVPACK];
#endif

      num_writable_headers = i;
    }
  (*len) = num_writable_headers;
  return(writable_headers);
}


const char **short_readable_headers(int *len)
{
  if (!readable_headers)
    {
      int i;
      readable_headers = (const char **)calloc(NUM_POSSIBLE_HEADERS, sizeof(char *));
      for (i = 0; i < NUM_BUILTIN_HEADERS; i++)
	readable_headers[i] = h_names[i];
#if HAVE_OGG
      /* oggdec to tempfile:
	 oggdec infile.ogg -b 16 -o translatedfile.wav
	 defaults for rest are signed little endian wav
	 
	 so sample_types (for output temp) here are not relevant -- no one will want 1 byte
      */
      readable_headers[i++] = h_names[H_OGG];
#endif

#if HAVE_FLAC
      /* flac -d infile.flac -o output.wav
       *  the -d -> decode 
       *  no choices
       */
      readable_headers[i++] = h_names[H_FLAC];
#endif

#if HAVE_SPEEX
      /* speexdec infile.spx tempfile.wav
	 no other choices
       */
      readable_headers[i++] = h_names[H_SPEEX];
#endif

#if HAVE_MPEG
      /* mpg321 -q -w output.wav input.mpg
	   this is mpeg->wav only
	   no choices
	   mpg123 is probably the same
       */
      readable_headers[i++] = h_names[H_MPEG];
#endif

#if HAVE_TIMIDITY
      /* timidity input.mid -Ou -o output.snd
	 midi->next/sun
	 there are other choices...
      */
      readable_headers[i++] = h_names[H_MIDI];
#endif

#if HAVE_WAVPACK
      readable_headers[i++] = h_names[H_WAVPACK];
#endif
      num_readable_headers = i;
    }
  (*len) = num_readable_headers;
  return(readable_headers);
}


mus_header_t position_to_header_type(int position)
{
  return(h_pos_to_type[position]);
}


mus_sample_t position_to_sample_type(mus_header_t header, int position)
{
  return(h_dfs[h_type_to_pos[header]][position]);
}


static int h_to_sample_type_pos(int h, mus_sample_t samp_type)
{
  int i;
  for (i = 0; i < h_num_sample_types[h]; i++)
    if (h_dfs[h][i] == samp_type)
      return(i);
  return(0);
}


const char **header_type_and_sample_type_to_position(file_data *fdat, mus_header_t type, mus_sample_t sample_type)
{
  int h;
  h = h_type_to_h[type];
  fdat->sample_types = h_num_sample_types[h];
  fdat->header_type_pos = h_type_to_pos[type];
  fdat->sample_type_pos = h_to_sample_type_pos(h, sample_type);
  return(h_df_names[h]);
}


void position_to_header_type_and_sample_type(file_data *fdat, int pos)
{
  int h;
  h = h_type_to_h[h_pos_to_type[pos]];
  fdat->header_type_pos = pos;
  fdat->current_header_type = h_pos_to_type[pos];
  fdat->sample_type_pos = h_to_sample_type_pos(h, fdat->current_sample_type);
  fdat->current_sample_type = h_dfs[h][fdat->sample_type_pos];
}


bool header_is_encoded(mus_header_t header_type)
{
  /* going either way here */
  return((header_type == MUS_OGG) ||
	 (header_type == MUS_FLAC) ||
	 (header_type == MUS_SPEEX) ||
	 (header_type == MUS_MPEG) ||
	 (header_type == MUS_MIDI) ||
	 (header_type == MUS_WAVPACK)
	 );
}


static char *quoted_filename(const char *filename, bool *new_name)
{
  int p, len;
  p = strcspn(filename, "' *?"); /* also [] but do they actually ever happen? */
  len = strlen(filename);
  if (p < len)
    {
      int i, j;
      char *name;
      (*new_name) = true;
      name = (char *)calloc(len * 2, sizeof(char));
      for (i = 0, j = 0; i < len; i++)
	{
	  if ((filename[i] == ' ')  || 
	      (filename[i] == '\'') || 
	      (filename[i] == '*')  || 
	      (filename[i] == '(')  || 
	      (filename[i] == ')')  || 
	      (filename[i] == '?'))
	    name[j++] = '\\';
	  name[j++] = filename[i];
	}
      return(name);
    }
  (*new_name) = false;
  return((char *)filename);
}


void snd_encode(mus_header_t type, const char *input_filename, const char *output_filename)
{
  /* write lshort wav tmpfile, encode, remove tmpfile */
  char *command = NULL, *ofile, *ifile;
  bool ofile_free = false, ifile_free = false;

  if (mus_file_probe(output_filename))
    snd_remove(output_filename, IGNORE_CACHE);
  /* these guys balk at overwriting */

  /* can't use '%s' here because the filename might also have single-quotes!
   */
  ifile = quoted_filename(input_filename, &ifile_free);
  ofile = quoted_filename(output_filename, &ofile_free);

  switch (type)
    {
#if HAVE_OGG
    case MUS_OGG:
      command = mus_format("%s %s -o %s", PATH_OGGENC, ifile, ofile);
      break;
#endif

#if HAVE_FLAC
    case MUS_FLAC: 
      command = mus_format("%s %s -o %s", PATH_FLAC, ifile, ofile);
      break;
#endif

#if HAVE_SPEEX
    case MUS_SPEEX:
      command = mus_format("%s %s %s", PATH_SPEEXENC, ifile, ofile);
      break;
#endif

#if HAVE_WAVPACK
    case MUS_WAVPACK:
      command = mus_format("%s %s -o %s", PATH_WAVPACK, ifile, ofile);
      break;
#endif

    default: 
      break;
    }

  if (ofile_free) free(ofile);
  if (ifile_free) free(ifile);

  if (command)
    {
      int err;
      err = system(command);
      if (err == -1)
	fprintf(stderr, "%s failed?", command);
      free(command);
    }
}


int snd_decode(mus_header_t type, const char *input_filename, const char *output_filename)
{
  int err = 0;
  char *command = NULL, *ofile, *ifile;
  bool ofile_free = false, ifile_free = false;
  
  if (mus_file_probe(output_filename))
    snd_remove(output_filename, IGNORE_CACHE);
  /* these guys balk at overwriting */

  ifile = quoted_filename(input_filename, &ifile_free);
  ofile = quoted_filename(output_filename, &ofile_free);

  switch (type)
    {
#if HAVE_OGG
    case MUS_OGG:
      command = mus_format("%s %s -b 16 -o %s", PATH_OGGDEC, ifile, ofile);
      break;
#endif

#if HAVE_FLAC
    case MUS_FLAC: 
      command = mus_format("%s -d %s -o %s", PATH_FLAC, ifile, ofile);
      break;
#endif

#if HAVE_SPEEX
    case MUS_SPEEX:
      command = mus_format("%s %s %s", PATH_SPEEXDEC, ifile, ofile);
      break;
#endif

#if HAVE_MPEG
    case MUS_MPEG:
#if HAVE_MPG321
      command = mus_format("%s -q -w %s %s", PATH_MPG321, ofile, ifile);
#else
      command = mus_format("%s -q -w %s %s", PATH_MPG123, ofile, ifile);
#endif
      break;
#endif

#if HAVE_TIMIDITY
    case MUS_MIDI:
      command = mus_format("%s %s -Ou -o %s", PATH_TIMIDITY, ifile, ofile);
      break;
#endif

#if HAVE_WAVPACK
    case MUS_WAVPACK:
      command = mus_format("%s %s -o %s", PATH_WVUNPACK, ifile, ofile);
      break;
#endif
    default: 
      err = -1;
      break;
    }

  if (ofile_free) free(ofile);
  if (ifile_free) free(ifile);

  if (command)
    {
      int err;
      err = system(command);
      if (err == -1)
	fprintf(stderr, "%s failed?", command);
      free(command);
    }
  return(err);
}


typedef struct {
  snd_info *parlous_sp, *current_sp;
  char *filename;
} same_name_info;

static bool check_for_same_name(snd_info *sp1, same_name_info *info)
{
  if ((sp1) && 
      (sp1 != info->current_sp) &&
      (mus_strcmp(sp1->filename, info->filename)))
    {
      if (has_unsaved_edits(sp1))
	{
	  info->parlous_sp = sp1;
	  return(true);
	}
    }
  return(false);
}


static void map_over_sounds_with_collision(bool (*func)(snd_info *, same_name_info *col), same_name_info *collision)
{
  /* true = abort map, skips inactive sounds */
  int i;
  for (i = 0; i < ss->max_sounds; i++)
    {
      snd_info *sp;
      sp = ss->sounds[i];
      if ((sp) && (sp->inuse == SOUND_NORMAL))
	{
	  bool val;
	  val = (*func)(sp, collision);
	  if (val) return;
	}
    }
}


snd_info *file_is_open_elsewhere_and_has_unsaved_edits(snd_info *sp, const char *fullname)
{
  same_name_info *collision;
  snd_info *result;
  collision = (same_name_info *)calloc(1, sizeof(same_name_info));
  collision->filename = (char *)fullname;
  collision->parlous_sp = NULL;
  collision->current_sp = sp;
  map_over_sounds_with_collision(check_for_same_name, collision);
  result = collision->parlous_sp;
  free(collision);
  return(result);
}


bool edit_header_callback(snd_info *sp, file_data *edit_header_data, 
			  void (*outer_handler)(const char *error_msg, void *ufd),
			  void (*inner_handler)(const char *error_msg, void *ufd))
{
  /* this just changes the header -- it does not actually reformat the data or whatever */

  mus_long_t loc, samples;
  char *comment, *original_comment = NULL;
  file_info *hdr;
  int chans, srate;
  mus_sample_t sample_type;
  mus_header_t header_type;

  if ((sp->user_read_only == FILE_READ_ONLY) || 
      (sp->file_read_only == FILE_READ_ONLY))
    {
      snd_error("%s is write-protected", sp->filename);
      return(false);
    }
#ifndef _MSC_VER
  if (!(ss->file_monitor_ok))
    if (access(sp->filename, W_OK) < 0)
      {
	snd_error("%s is write-protected", sp->filename);
	return(false);
      }
#endif
  hdr = sp->hdr;

  /* find out which fields changed -- if possible don't touch the sound data */
  redirect_snd_error_to(inner_handler, (void *)edit_header_data);
  comment = get_file_dialog_sound_attributes(edit_header_data, &srate, &chans, &header_type, &sample_type, &loc, &samples, 1);
  redirect_snd_error_to(outer_handler, (void *)edit_header_data);
  if (edit_header_data->error_widget != NOT_A_SCANF_WIDGET) /* bad field value, perhaps */
    return(false);

  if (sp->hdr->type != MUS_RAW)
    {
      original_comment = mus_sound_comment(sp->filename);
      if ((hdr->type == MUS_AIFF) || 
	  (hdr->type == MUS_AIFC)) 
	mus_header_set_aiff_loop_info(mus_sound_loop_info(sp->filename));
    }
  mus_sound_forget(sp->filename);
  if (hdr->type != header_type)
    {
      sp->writing = true;
      mus_header_change_type(sp->filename, header_type, sample_type);
      sp->writing = false;
    }
  else
    {
      if (hdr->sample_type != sample_type)
	mus_header_change_sample_type(sp->filename, header_type, sample_type);
    }
  if (hdr->chans != chans)
    mus_header_change_chans(sp->filename, header_type, chans);
  if (hdr->srate != srate)
    mus_header_change_srate(sp->filename, header_type, srate);
  if (hdr->samples != samples)
    mus_header_change_data_size(sp->filename, header_type, mus_samples_to_bytes(sample_type, samples));
  if ((header_type == MUS_NEXT) &&
      (hdr->data_location != loc))
    mus_header_change_location(sp->filename, MUS_NEXT, loc);
  if (!(mus_strcmp(comment, original_comment)))
    mus_header_change_comment(sp->filename, header_type, comment);
  if (comment) free(comment);
  if (original_comment) free(original_comment);
  snd_update(sp);
  return(true);
}


#if (!USE_NO_GUI)
/* raw data dialog funcs */

static int swap_int(int n)
{
  int o;
  unsigned char *inp, *outp; 
  inp = (unsigned char *)&n; 
  outp = (unsigned char *)&o;
  outp[0] = inp[3]; 
  outp[1] = inp[2]; 
  outp[2] = inp[1]; 
  outp[3] = inp[0];
  return(o);
}


static mus_long_t swap_mus_long_t(mus_long_t n)
{
  mus_long_t o;
  unsigned char *inp, *outp; 
  inp = (unsigned char *)&n; 
  outp = (unsigned char *)&o;
  outp[0] = inp[7]; 
  outp[1] = inp[6]; 
  outp[2] = inp[5]; 
  outp[3] = inp[4]; 
  outp[4] = inp[3]; 
  outp[5] = inp[2];
  outp[6] = inp[1];
  outp[7] = inp[0];
  return(o);
}


static short swap_short(short n)
{
  short o;
  unsigned char *inp, *outp; 
  inp = (unsigned char *)&n; 
  outp = (unsigned char *)&o;
  outp[0] = inp[1]; 
  outp[1] = inp[0]; 
  return(o);
}


static char *raw_data_explanation(const char *filename, file_info *hdr, char **info)
{
  char *reason_str, *tmp_str, *file_string;
  mus_long_t nsamp;
  bool ok;
  int ns, better_srate = 0, better_chans = 0, len;
  reason_str = (char *)calloc(PRINT_BUFFER_SIZE, sizeof(char));
  tmp_str = (char *)calloc(LABEL_BUFFER_SIZE, sizeof(char));
  /* try to provide some notion of what might be the intended header (currently limited to byte-order mistakes) */
  len = PRINT_BUFFER_SIZE;

  /* srate */
  ok = ((original_srate >= 8000) && 
	(original_srate <= 100000));
  snprintf(reason_str, len, "srate%s: %d", (ok) ? "" : " looks wrong", original_srate);
  if (!ok)
    {
      ns = (int)swap_int(original_srate);
      if ((ns < 4000) || (ns > 100000)) 
	ns = (int)swap_short((short)(original_srate));
      if ((ns > 4000) && (ns < 100000))
	{
	  better_srate = ns;
	  snprintf(tmp_str, LABEL_BUFFER_SIZE, " (swapped: %d)", ns);
	  reason_str = mus_strcat(reason_str, tmp_str, &len);
	}
    }

  /* chans */
  ok = ((original_chans > 0) && 
	(original_chans < 1000));
  snprintf(tmp_str, LABEL_BUFFER_SIZE, "\nchans%s: %d", (ok) ? "" : " looks wrong", original_chans);
  reason_str = mus_strcat(reason_str, tmp_str, &len);
  if (!ok)
    {
      ns = swap_int(original_chans);
      if ((ns < 0) || (ns > 8)) 
	ns = swap_short((short)(original_chans));
      if ((ns > 0) && (ns <= 8))
	{
	  better_chans = ns;
	  snprintf(tmp_str, LABEL_BUFFER_SIZE, " (swapped: %d)", ns);
	  reason_str = mus_strcat(reason_str, tmp_str, &len);
	}
    }

  /* header type */
  snprintf(tmp_str, LABEL_BUFFER_SIZE, "\ntype: %s", mus_header_type_name(hdr->type));
  reason_str = mus_strcat(reason_str, tmp_str, &len);

  /* sample type */
  if (!(mus_is_sample_type(original_sample_type)))
    {
      char *format_info;
      if (original_sample_type != MUS_UNKNOWN_SAMPLE)
	format_info = (char *)mus_sample_type_name(original_sample_type);
      else format_info = (char *)mus_header_original_sample_type_name(mus_sound_original_sample_type(filename), hdr->type);
      snprintf(tmp_str, LABEL_BUFFER_SIZE, "\nformat looks bogus: %s", format_info);
    }
  else snprintf(tmp_str, LABEL_BUFFER_SIZE, "\nformat: %s", (char *)mus_sample_type_name(original_sample_type));
  reason_str = mus_strcat(reason_str, tmp_str, &len);

  /* samples */
  snprintf(tmp_str, LABEL_BUFFER_SIZE, "\nlength: %.3f (%" print_mus_long " samples, %" print_mus_long " bytes total)",
	       ((double)(hdr->samples) / (double)(hdr->chans * hdr->srate)),
	       hdr->samples,
	       mus_sound_length(filename));
  reason_str = mus_strcat(reason_str, tmp_str, &len);
  nsamp = swap_mus_long_t(hdr->samples);
  if (nsamp < mus_sound_length(filename))
    {
      snprintf(tmp_str, LABEL_BUFFER_SIZE, " (swapped: %" print_mus_long , nsamp);
      reason_str = mus_strcat(reason_str, tmp_str, &len);
      if ((better_chans) && (better_srate))
	{
	  snprintf(tmp_str, LABEL_BUFFER_SIZE,
		       ", swapped length: %.3f / sample-size-in-bytes)",
		       ((double)nsamp / (double)(better_chans * better_srate)));
	  reason_str = mus_strcat(reason_str, tmp_str, &len);
	}
      else reason_str = mus_strcat(reason_str, ")", &len);
    }

  /* data location */
  snprintf(tmp_str, LABEL_BUFFER_SIZE, "\ndata location: %" print_mus_long, hdr->data_location);
  reason_str = mus_strcat(reason_str, tmp_str, &len);
  nsamp = swap_mus_long_t(hdr->data_location);
  if ((nsamp > 0) && 
      (nsamp <= 1024)) 
    {
      snprintf(tmp_str, LABEL_BUFFER_SIZE, " (swapped: %" print_mus_long ")", nsamp);
      reason_str = mus_strcat(reason_str, tmp_str, &len);
    }
  (*info) = reason_str;
  file_string = (char *)calloc(PRINT_BUFFER_SIZE, sizeof(char));
  snprintf(file_string, PRINT_BUFFER_SIZE,
	       "Bad header found on %s", 
	       filename_without_directory(filename));
  free(tmp_str);
  free_file_info(hdr);
  return(file_string);
}
#endif


char *dialog_get_title(widget_t dialog)
{
#if USE_MOTIF
  char *temp, *titlestr = NULL;
  XmString title;
  XtVaGetValues(dialog, XmNdialogTitle, &title, NULL);
  temp = (char *)XmStringUnparse(title, NULL, XmCHARSET_TEXT, XmCHARSET_TEXT, NULL, 0, XmOUTPUT_ALL);
  if (temp)
    {
      titlestr = mus_strdup(temp);
      XtFree(temp);
    }
  return(titlestr);
#endif
#if USE_NO_GUI
  return(NULL); /* make the compiler happy */
#endif
}



/* -------- info popup -------- */

#if (!USE_NO_GUI)

static char *display_file_maxamps(const char *filename, int chans)
{
  char *ampstr = NULL;
  int i, len;
  mus_float_t *vals;
  mus_long_t *times;
  len = chans * 32;
  ampstr = (char *)calloc(len, sizeof(char));
  vals = (mus_float_t *)calloc(chans, sizeof(mus_float_t));
  times = (mus_long_t *)calloc(chans, sizeof(mus_long_t));
  snprintf(ampstr, len, "maxamp%s: ", (chans > 1) ? "s" : "");
  mus_sound_maxamps(filename, chans, vals, times);
  for (i = 0; i < chans; i++)
    {
      ampstr = mus_strcat(ampstr, prettyf(vals[i], 3), &len);
      ampstr = mus_strcat(ampstr, " ", &len);
    }
  free(vals);
  free(times);
  return(ampstr);
}


static char *display_sound_maxamps(snd_info *sp)
{
  char *ampstr = NULL;
  uint32_t i;
  int len;
  len = sp->nchans * 32;
  ampstr = (char *)calloc(len, sizeof(char));
  snprintf(ampstr, len, "maxamp%s: ", (sp->nchans > 1) ? "s" : "");
  for (i = 0; i < sp->nchans; i++)
    {
      ampstr = mus_strcat(ampstr, prettyf(channel_maxamp(sp->chans[i], AT_CURRENT_EDIT_POSITION), 3), &len);
      ampstr = mus_strcat(ampstr, " ", &len);
    }
  return(ampstr);
}


void display_info(snd_info *sp)
{
  #define INFO_BUFFER_SIZE 1024
  if (sp)
    {
      file_info *hdr;
      char *comment = NULL, *ampstr = NULL, *buffer = NULL;

      hdr = sp->hdr;
      buffer = (char *)calloc(INFO_BUFFER_SIZE, sizeof(char));

      snprintf(buffer, INFO_BUFFER_SIZE, 
		   "srate: %d\nchans: %d\nlength: %.3f (%" print_mus_long " %s)\n%s\n",
		   snd_srate(sp),
		   sp->nchans,
		   (double)(current_samples(sp->chans[0])) / (double)snd_srate(sp),
		   current_samples(sp->chans[0]),
		   (sp->nchans == 1) ? "samples" : "framples",
		   ampstr = display_sound_maxamps(sp));
      post_it(sp->short_filename, buffer);
      if (ampstr) free(ampstr);

      snprintf(buffer, INFO_BUFFER_SIZE, "\n----------------------------------------\n%s:", sp->filename);
      post_it_append(buffer);

      snprintf(buffer, INFO_BUFFER_SIZE, "\n    type: %s\n    format: %s\n    written: %s\n",
		   mus_header_type_name(hdr->type),
		   mus_sample_type_name(hdr->sample_type),
		   snd_strftime(STRFTIME_FORMAT, sp->write_date));
      post_it_append(buffer);

      if (hdr->srate != snd_srate(sp))
	{
	  snprintf(buffer, INFO_BUFFER_SIZE, "    original srate: %d\n", hdr->srate);
	  post_it_append(buffer);
	}

      if (hdr->chans != (int)sp->nchans)
	{
	  snprintf(buffer, INFO_BUFFER_SIZE, "    original chans: %d\n", hdr->chans);
	  post_it_append(buffer);
	}

      comment = hdr->comment;
      while ((comment) && (*comment) && 
	     (((*comment) == '\n') || 
	      ((*comment) == '\t') || 
	      ((*comment) == ' ') || 
	      ((*comment) == '\xd')))
	comment++;
      if ((comment) && (*comment))
	{
	  snprintf(buffer, INFO_BUFFER_SIZE, "    comment: \"%s\"\n", comment);
	  post_it_append(buffer);
	}

      if (mus_sound_maxamp_exists(sp->filename))
	{
	  uint32_t i;
	  bool edits = false;
	  for (i = 0; i < sp->nchans; i++)
	    if (sp->chans[i]->edit_ctr > 0)
	      {
		edits = true;
		break;
	      }

	  if (edits)
	    {
	      ampstr = display_file_maxamps(sp->filename, sp->nchans);
	      if (ampstr)
		{
		  snprintf(buffer, INFO_BUFFER_SIZE, "    original %s\n", ampstr);
		  post_it_append(buffer);
		  free(ampstr);
		}
	    }
	}
      free(buffer);
    }
}
#endif



/* -------- extlang connections -------- */


static Xen g_add_sound_file_extension(Xen ext)
{
  #define H_add_sound_file_extension "(" S_add_sound_file_extension " ext):  add the file extension 'ext' to the list of sound file extensions"
  Xen_check_type(Xen_is_string(ext), ext, 1, S_add_sound_file_extension, "a string");
  add_sound_file_extension(Xen_string_to_C_string(ext));
  return(ext);
}


static Xen g_sound_file_extensions(void)
{
  #define H_sound_file_extensions "(" S_sound_file_extensions "): list of current sound file extensions (used \
by the just-sounds file filters)"

  Xen res = Xen_empty_list;
  int i;
  for (i = 0; i < sound_file_extensions_end; i++)
    res = Xen_cons(C_string_to_Xen_string(sound_file_extensions[i]),
		   res);
  return(res);
}


static Xen g_set_sound_file_extensions(Xen lst)
{
  int i, len;
  for (i = 0; i < sound_file_extensions_end; i++)
    if (sound_file_extensions[i])
      {
	free(sound_file_extensions[i]);
	sound_file_extensions[i] = NULL;
      }
  sound_file_extensions_end = 0;
  default_sound_file_extensions = 0;
  len = Xen_list_length(lst);
  for (i = 0; i < len; i++)
    if (!(Xen_is_string(Xen_list_ref(lst, i))))
      {
	Xen_check_type(false, Xen_list_ref(lst, i), i, S_set S_sound_file_extensions, "a filename extension (a string like \"snd\")");
	return(Xen_false);
      }
  for (i = 0; i < len; i++)
    add_sound_file_extension(Xen_string_to_C_string(Xen_list_ref(lst, i)));
  return(lst);
}


static Xen g_file_write_date(Xen file)
{
  #if HAVE_RUBY
    #define write_date_equivalent "Equivalent to Ruby's File.mtime(file)"
  #endif

  #if HAVE_FORTH
    #define write_date_equivalent "Equivalent to Forth's file-mtime"
  #endif

  #if HAVE_SCHEME
    #define write_date_equivalent ""
  #endif

  #define S_file_write_date "file-write-date"
#ifndef __GNUC__
  #define H_file_write_date "(" S_file_write_date " file): write date of file"
#else
  #define H_file_write_date "(" S_file_write_date " file): write date in the same format as \
current-time:\n(strftime \"%a %d-%b-%Y %H:%M %Z\" (localtime (" S_file_write_date " \"oboe.snd\")))\n" write_date_equivalent
#endif

  time_t date;
  Xen_check_type(Xen_is_string(file), file, 1, S_file_write_date, "a string");
  date = file_write_date(Xen_string_to_C_string(file));
  return(C_int_to_Xen_integer(date));
}


static Xen g_sound_loop_info(Xen snd)
{
  #define H_sound_loop_info "(" S_sound_loop_info " :optional snd): return the sound's loop points as a \
list: (sustain-start sustain-end release-start release-end baseNote detune)"
  int *res;
  snd_info *sp;
  Snd_assert_sound(S_sound_loop_info, snd, 1);
  sp = get_sp(snd);
  if (!sp)
    return(snd_no_such_sound_error(S_sound_loop_info, snd));
  res = sp->hdr->loops;
  if (res)
    return(Xen_list_8(C_int_to_Xen_integer(res[0]), C_int_to_Xen_integer(res[1]), C_int_to_Xen_integer(res[2]),
		      C_int_to_Xen_integer(res[3]), C_int_to_Xen_integer(res[4]), C_int_to_Xen_integer(res[5]),
		      C_int_to_Xen_integer(res[6]), C_int_to_Xen_integer(res[7])));
  return(Xen_empty_list);
}


static Xen g_set_sound_loop_info(Xen snd, Xen vals)
{
  snd_info *sp;
  char *tmp_file;
  file_info *hdr;
  mus_header_t type;
  int len = 0;
  
  Xen start0 = Xen_integer_zero, end0 = Xen_integer_zero; 
  Xen start1 = Xen_integer_zero, end1 = Xen_integer_zero; 
  Xen mode0 = Xen_integer_zero, mode1 = Xen_integer_zero;
  Xen note = Xen_integer_zero, detune = Xen_integer_zero;
  Xen_check_type((!Xen_is_bound(vals)) || (Xen_is_list(vals)), vals, 2, S_set S_sound_loop_info, "a list");

  if (!Xen_is_bound(vals))
    {
      /* what is going on here? -- (set! (sound-loop-info) (list...))? */
      Xen_check_type(Xen_is_list(snd), snd, 1, S_set S_sound_loop_info, "a list");
      vals = snd;
      sp = get_sp(Xen_undefined);
    }
  else 
    {
      Snd_assert_sound(S_set S_sound_loop_info, snd, 1);
      sp = get_sp(snd);
    }
  len = Xen_list_length(vals);

  if (!sp) 
    return(snd_no_such_sound_error(S_set S_sound_loop_info, snd));

  if ((sp->user_read_only == FILE_READ_ONLY) || 
      (sp->file_read_only == FILE_READ_ONLY))
    Xen_error(Xen_make_error_type("cannot-save"),
	      Xen_list_2(C_string_to_Xen_string(S_set S_sound_loop_info ": ~S is write-protected"),
			 C_string_to_Xen_string(sp->filename)));

  hdr = sp->hdr;
  if (len > 0) 
    {
      start0 = Xen_list_ref(vals, 0);
      Xen_check_type(Xen_is_integer(start0), start0, 2, S_set S_sound_loop_info, "start0 must be an integer");
      if (len > 1) 
	{
	  end0 = Xen_list_ref(vals, 1);
	  Xen_check_type(Xen_is_integer(end0), end0, 2, S_set S_sound_loop_info, "end0 must be an integer");
	  if (len > 2) 
	    {
	      start1 = Xen_list_ref(vals, 2);
	      Xen_check_type(Xen_is_integer(start1), start1, 2, S_set S_sound_loop_info, "start1 must be an integer");
	      if (len > 3) 
		{
		  end1 = Xen_list_ref(vals, 3);
		  Xen_check_type(Xen_is_integer(end1), end1, 2, S_set S_sound_loop_info, "end1 must be an integer");
		  if (len > 4)
		    {
		      note = Xen_list_ref(vals, 4);
		      Xen_check_type(Xen_is_integer(note), note, 2, S_set S_sound_loop_info, "note must be an integer");
		      if (len > 5) 
			{
			  detune = Xen_list_ref(vals, 5);
			  Xen_check_type(Xen_is_integer(detune), detune, 2, S_set S_sound_loop_info, "detune must be an integer");
			  if (len > 6) 
			    {
			      mode0 = Xen_list_ref(vals, 6);
			      Xen_check_type(Xen_is_integer(mode0), mode0, 2, S_set S_sound_loop_info, "mode0 must be an integer");
			      if (len > 7)
				{
				mode1 = Xen_list_ref(vals, 7);
				Xen_check_type(Xen_is_integer(mode1), mode1, 2, S_set S_sound_loop_info, "mode1 must be an integer");
				}}}}}}}}

  if (!hdr->loops)
    hdr->loops = (int *)calloc(MUS_LOOP_INFO_SIZE, sizeof(int));
  else memset((void *)(hdr->loops), 0, MUS_LOOP_INFO_SIZE * sizeof(int));
  hdr->loops[0] = Xen_integer_to_C_int(start0);
  hdr->loops[1] = Xen_integer_to_C_int(end0);
  hdr->loops[2] = Xen_integer_to_C_int(start1);
  hdr->loops[3] = Xen_integer_to_C_int(end1);
  if (len > 4)
    {
      hdr->loops[4] = Xen_integer_to_C_int(note);
      hdr->loops[5] = Xen_integer_to_C_int(detune);
    }
  if (len > 6)
    {
      hdr->loops[6] = Xen_integer_to_C_int(mode0);
      hdr->loops[7] = Xen_integer_to_C_int(mode1);
    }
  else
    {
      if (!(Xen_is_false(end0))) hdr->loops[6] = 1;
      if (!(Xen_is_false(end1))) hdr->loops[7] = 1;
    }
  mus_sound_set_loop_info(sp->filename, hdr->loops);
  mus_header_set_aiff_loop_info(hdr->loops);

  type = hdr->type;
  if ((type != MUS_AIFF) && 
      (type != MUS_AIFC))
    {
      snd_warning("changing %s's header from %s to aifc to accommodate loop info",
		  sp->short_filename,
		  mus_header_type_name(type));
      type = MUS_AIFC;
    }
  /* ideally set sound_loop_info would just change the header (keeping all other state intact)
   *   but this aspect of AIFC headers is impossibly complicated (if we could assume our own headers,
   *   it would not be so hard).
   */
  tmp_file = snd_tempnam();
  {
    io_error_t err;
    err = save_edits_without_display(sp, tmp_file, type, 
				     hdr->sample_type, 
				     hdr->srate, 
				     hdr->comment,
				     AT_CURRENT_EDIT_POSITION);
    if ((err != IO_NO_ERROR) &&
	(err != IO_SAVE_HOOK_CANCELLATION))
      {
	Xen_error(Xen_make_error_type("cannot-save"),
		  Xen_list_3(C_string_to_Xen_string(S_set S_sound_loop_info ": can't save ~S, ~A"),
			     C_string_to_Xen_string(tmp_file),
			     C_string_to_Xen_string(snd_io_strerror())));
	return(Xen_false); /* not executed -- just for emphasis */
      }
    sp->writing = true;
    if (err == IO_SAVE_HOOK_CANCELLATION)
      snd_remove(tmp_file, IGNORE_CACHE);
    else 
      {
	err = move_file(tmp_file, sp->filename);
	if (is_serious_io_error(err))
	  {
	    free(tmp_file);
	    sp->writing = false;
	    Xen_error(Xen_make_error_type("cant-update-file"),
		      Xen_list_4(C_string_to_Xen_string(S_set S_sound_loop_info ": can't update ~S: ~A ~A"),
				 C_string_to_Xen_string(sp->filename),
				 C_string_to_Xen_string(io_error_name(err)),
				 C_string_to_Xen_string(snd_io_strerror())));
	    return(Xen_false);
	  }
      }
    sp->writing = false;
    if (err != IO_SAVE_HOOK_CANCELLATION) 
      snd_update(sp);
    free(tmp_file);
    return((err == IO_NO_ERROR) ? Xen_true : C_int_to_Xen_integer((int)err));
  }
}


static Xen g_soundfont_info(Xen snd)
{
  /* return all soundfont descriptors as list of lists: ((name start loopstart loopend)) */
  #define H_soundfont_info "(" S_soundfont_info " :optional snd): list of lists describing snd as a soundfont. \
each inner list has the form: (name start loopstart loopend)"

  Xen outlist = Xen_empty_list;
  snd_info *sp;
  Snd_assert_sound(S_soundfont_info, snd, 1);
  sp = get_sp(snd);
  if (!sp) 
    return(snd_no_such_sound_error(S_soundfont_info, snd));
  mus_header_read(sp->filename);
  if (mus_header_type() == MUS_SOUNDFONT)
    {
      int i, lim;
      lim = mus_header_sf2_entries();
      if (lim > 0)
	for (i = lim - 1; i >= 0; i--)
	  {
	    Xen inlist;
	    inlist = Xen_list_4(C_string_to_Xen_string(mus_header_sf2_name(i)),
			        C_int_to_Xen_integer(mus_header_sf2_start(i)),
			        C_int_to_Xen_integer(mus_header_sf2_loop_start(i)),
			        C_int_to_Xen_integer(mus_header_sf2_end(i)));
	    outlist = Xen_cons(inlist, outlist);
	  }
    }
  return(outlist);
}


dir_info *find_sound_files_in_dir(const char *name)
{
  return(find_filtered_files_in_dir(name, JUST_SOUNDS_FILTER));
}


static Xen g_sound_files_in_directory(Xen dirname)
{
  #define H_sound_files_in_directory "(" S_sound_files_in_directory " :optional (directory \".\")): return a list of the sound files in 'directory'"
  char *name = NULL;
  Xen res = Xen_empty_list;
  Xen_check_type(Xen_is_string_or_unbound(dirname), dirname, 1, S_sound_files_in_directory, "a string");
  if (Xen_is_string(dirname))
    name = mus_expand_filename(Xen_string_to_C_string(dirname));
  else name = mus_expand_filename(".");
  if (name)
    {
      dir_info *dp = NULL;
      dp = find_sound_files_in_dir(name);
      if (dp)
	{
	  int i;
	  for (i = dp->len - 1; i >= 0; i--)
	    res = Xen_cons(C_string_to_Xen_string(dp->files[i]->filename), res);
	  free_dir_info(dp);
	}
      free(name);
    }
  return(res);
}


#define S_disk_kspace "disk-kspace"

static Xen g_disk_kspace(Xen name)
{
  #define H_disk_kspace "(" S_disk_kspace " filename): kbytes of space available on partition containing 'filename'"
  Xen_check_type(Xen_is_string(name), name, 1, S_disk_kspace, "a string");
  return(C_llong_to_Xen_llong(disk_kspace(Xen_string_to_C_string(name))));
}


static Xen g_open_file_dialog(Xen managed)
{
  #define H_open_file_dialog "(" S_open_file_dialog " :optional (managed " PROC_TRUE ")): create the file dialog if needed and display it if 'managed'"
  Xen_check_type(Xen_is_boolean_or_unbound(managed), managed, 1, S_open_file_dialog, "a boolean");
  return(Xen_wrap_widget(make_open_file_dialog(FILE_READ_WRITE, (Xen_is_bound(managed)) ? Xen_boolean_to_C_bool(managed) : true)));
}


static Xen g_mix_file_dialog(Xen managed)
{
  #define H_mix_file_dialog "(" S_mix_file_dialog " :optional (managed " PROC_TRUE ")): create the mix file dialog if needed and display it if 'managed'"
  Xen_check_type(Xen_is_boolean_or_unbound(managed), managed, 1, S_mix_file_dialog, "a boolean");
  return(Xen_wrap_widget(make_mix_file_dialog((Xen_is_bound(managed)) ? Xen_boolean_to_C_bool(managed) : true)));
}


static Xen g_insert_file_dialog(Xen managed)
{
  #define H_insert_file_dialog "(" S_insert_file_dialog " :optional (managed " PROC_TRUE ")): create the insert file dialog if needed and display it if 'managed'"
  Xen_check_type(Xen_is_boolean_or_unbound(managed), managed, 1, S_insert_file_dialog, "a boolean");
  return(Xen_wrap_widget(make_insert_file_dialog((Xen_is_bound(managed)) ? Xen_boolean_to_C_bool(managed) : true)));
}


static Xen g_edit_header_dialog(Xen snd_n) 
{
  #define H_edit_header_dialog "(" S_edit_header_dialog " :optional snd): start the Edit Header dialog on sound snd"
  snd_info *sp; 
  sp = get_sp(snd_n);
  if ((!sp) || (sp->inuse != SOUND_NORMAL))
    return(snd_no_such_sound_error(S_edit_header_dialog, snd_n));
  return(Xen_wrap_widget(edit_header(sp)));
}


static Xen g_save_selection_dialog(Xen managed)
{
#define H_save_selection_dialog "(" S_save_selection_dialog " :optional managed): start the Selection Save-as dialog"
  Xen_check_type(Xen_is_boolean_or_unbound(managed), managed, 1, S_save_selection_dialog, "a boolean");
  return(Xen_wrap_widget(make_selection_save_as_dialog(Xen_boolean_to_C_bool(managed))));
}


static Xen g_save_region_dialog(Xen managed)
{
  #define H_save_region_dialog "(" S_save_region_dialog " :optional managed): start the Region Save-as dialog"
  Xen_check_type(Xen_is_boolean_or_unbound(managed), managed, 1, S_save_region_dialog, "a boolean");
  return(Xen_wrap_widget(make_region_save_as_dialog(Xen_boolean_to_C_bool(managed))));
}


static Xen g_save_sound_dialog(Xen managed)
{
  #define H_save_sound_dialog "(" S_save_sound_dialog " :optional managed): start the File Save-as dialog"
  Xen_check_type(Xen_is_boolean_or_unbound(managed), managed, 1, S_save_sound_dialog, "a boolean");
  return(Xen_wrap_widget(make_sound_save_as_dialog(Xen_boolean_to_C_bool(managed))));
}


static Xen g_info_dialog(Xen subject, Xen msg)
{
  #define H_info_dialog "(" S_info_dialog " subject message): start the Info window with subject and message"
  Xen_check_type(Xen_is_string(subject), subject, 1, S_info_dialog, "a string");
  Xen_check_type(Xen_is_string(msg), msg, 2, S_info_dialog, "a string");
  return(Xen_wrap_widget(post_it(Xen_string_to_C_string(subject), Xen_string_to_C_string(msg))));
}


static Xen g_new_sound_dialog(Xen managed)
{
  #define H_new_sound_dialog "(" S_new_sound_dialog " :optional managed): start the File New sound dialog"
  Xen_check_type(Xen_is_boolean_or_unbound(managed), managed, 1, S_new_sound_dialog, "a boolean");
  return(Xen_wrap_widget(make_new_file_dialog(Xen_boolean_to_C_bool(managed))));
}




static Xen g_is_sound_file(Xen name)
{
  #define H_is_sound_file "(" S_is_sound_file " name): " PROC_TRUE " if name has a known sound file extension"
  Xen_check_type(Xen_is_string(name), name, 1, S_is_sound_file, "a filename");   
  return(C_bool_to_Xen_boolean(is_sound_file(Xen_string_to_C_string(name))));
}


static Xen g_snd_tempnam(void) 
{
  #define H_snd_tempnam "(" S_snd_tempnam "): return a new temp file name using " S_temp_dir "."
  char *tmp;
  Xen res;
  tmp = snd_tempnam();
  res = C_string_to_Xen_string(tmp);
  free(tmp);
  return(res);
}


static Xen g_auto_update(void) {return(C_bool_to_Xen_boolean(auto_update(ss)));}

static Xen g_set_auto_update(Xen val) 
{
  #define H_auto_update "(" S_auto_update "): " PROC_TRUE " if Snd should automatically update a file if it changes unexpectedly (default: " PROC_FALSE "). \
The number of seconds between update checks is set by " S_auto_update_interval "."
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_auto_update, "a boolean");
  set_auto_update(Xen_boolean_to_C_bool(val)); 
  return(C_bool_to_Xen_boolean(auto_update(ss)));
}


static Xen g_auto_update_interval(void) {return(C_double_to_Xen_real(auto_update_interval(ss)));}

static Xen g_set_auto_update_interval(Xen val) 
{
  mus_float_t ctime;
  #define H_auto_update_interval "(" S_auto_update_interval "): time (seconds) between background checks for changed file on disk (default: 60). \
This value only matters if " S_auto_update " is " PROC_TRUE

  Xen_check_type(Xen_is_number(val), val, 1, S_set S_auto_update_interval, "a number"); 
  ctime = Xen_real_to_C_double(val);
  if (ctime != auto_update_interval(ss))
    {
      mus_float_t old_time;
      if ((ctime < 0.0) || (ctime > (24 * 3600)))
	Xen_out_of_range_error(S_set S_auto_update_interval, 1, val, "invalid time");

      old_time = auto_update_interval(ss);
      set_auto_update_interval(ctime);
      /* if new value is 0.0, auto_update_check will notice that, and not run or re-start the update check */
      /* if new value is not 0.0, and old value was 0.0, we need to restart the timeout proc, unless it's still on the queue */
      
      if ((ctime > 0.0) && (old_time == 0.0))
	auto_update_restart();
    }
  return(C_double_to_Xen_real(auto_update_interval(ss)));
}


static Xen g_default_output_chans(void) {return(C_int_to_Xen_integer(default_output_chans(ss)));}

static Xen g_set_default_output_chans(Xen val) 
{
  #define MAX_OUTPUT_CHANS 1024
  #define H_default_output_chans "(" S_default_output_chans "): default number of channels when a new or temporary file is created (1)"
  Xen_check_type(Xen_is_integer(val), val, 1, S_set S_default_output_chans, "an integer"); 
  set_default_output_chans(mus_iclamp(1, Xen_integer_to_C_int(val), MAX_OUTPUT_CHANS));
  return(C_int_to_Xen_integer(default_output_chans(ss)));
}


static Xen g_default_output_srate(void) {return(C_int_to_Xen_integer(default_output_srate(ss)));}

static Xen g_set_default_output_srate(Xen val) 
{
  #define MAX_OUTPUT_SRATE 1000000000
  #define H_default_output_srate "(" S_default_output_srate "): default srate when a new or temporary file is created (22050)" 

  Xen_check_type(Xen_is_integer(val), val, 1, S_set S_default_output_srate, "an integer"); 
  set_default_output_srate(mus_iclamp(1, Xen_integer_to_C_int(val), MAX_OUTPUT_SRATE));
  return(C_int_to_Xen_integer(default_output_srate(ss)));
}


static Xen g_default_output_header_type(void) {return(C_int_to_Xen_integer((int)default_output_header_type(ss)));}

static Xen g_set_default_output_header_type(Xen val) 
{
  mus_header_t typ;
  #define H_default_output_header_type "(" S_default_output_header_type "): default header type when a new or temporary file is created. \
Normally this is " S_mus_next "; -1 here indicates you want Snd to use the current sound's header type, if possible. \
Other writable headers include " S_mus_aiff ", " S_mus_riff ", " S_mus_ircam ", " S_mus_nist ", " S_mus_aifc ", and " S_mus_raw "."

  Xen_check_type(Xen_is_integer(val), val, 1, S_set S_default_output_header_type, "an integer"); 

  typ = (mus_header_t)Xen_integer_to_C_int(val);
  if (mus_header_writable(typ, MUS_IGNORE_SAMPLE))
    set_default_output_header_type(typ);
  else Xen_out_of_range_error(S_set S_default_output_header_type, 1, val, "unwritable header type");
  return(C_int_to_Xen_integer((int)default_output_header_type(ss)));
}


static Xen g_default_output_sample_type(void) {return(C_int_to_Xen_integer(default_output_sample_type(ss)));}

static Xen g_set_default_output_sample_type(Xen val) 
{
  mus_sample_t samp_type;
  #define H_default_output_sample_type "(" S_default_output_sample_type "): default sample type when a new or temporary file is created, \
normally " S_mus_ldouble "; mus-unknown-sample here means try to use the current sound's sample type; many other sample types \
are available, but not all are compatible with all header types"

  Xen_check_type(Xen_is_integer(val), val, 1, S_set S_default_output_sample_type, "an integer"); 

  samp_type = (mus_sample_t)Xen_integer_to_C_int(val);
  if (mus_is_sample_type(samp_type))
    set_default_output_sample_type(samp_type);
  else Xen_out_of_range_error(S_set S_default_output_sample_type, 1, val, "unknown sample type");
  return(C_int_to_Xen_integer((int)default_output_sample_type(ss)));
}


static Xen g_clipping(void) {return(C_bool_to_Xen_boolean(clipping(ss)));}

static Xen g_set_clipping(Xen val) 
{
  #define H_clipping "(" S_clipping "): " PROC_TRUE " if Snd should clip output values to the current \
output sample type's maximum. The default (" PROC_FALSE ") allows them to wrap-around which makes a very loud click"
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_clipping, "a boolean");
  set_clipping(Xen_boolean_to_C_bool(val));
  return(C_bool_to_Xen_boolean(clipping(ss)));
}


static Xen g_ask_before_overwrite(void) {return(C_bool_to_Xen_boolean(ask_before_overwrite(ss)));}

static Xen g_set_ask_before_overwrite(Xen val) 
{
  #define H_ask_before_overwrite "(" S_ask_before_overwrite "): " PROC_TRUE " if you want Snd to ask before overwriting a file. \
If " PROC_FALSE ", any existing file of the same name will be overwritten without warning when you save a sound."
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_ask_before_overwrite, "a boolean");
  set_ask_before_overwrite(Xen_boolean_to_C_bool(val)); 
  return(C_bool_to_Xen_boolean(ask_before_overwrite(ss)));
}


static Xen g_with_toolbar(void) {return(C_bool_to_Xen_boolean(with_toolbar(ss)));}

void set_with_toolbar_and_display(bool val)
{
  set_with_toolbar(val);
#if (!USE_NO_GUI)
  if (with_toolbar(ss))
    show_toolbar();
  else hide_toolbar();
#endif
}

static Xen g_set_with_toolbar(Xen val) 
{
  #define H_with_toolbar "(" S_with_toolbar "): " PROC_TRUE " if you want a toolbar"
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_with_toolbar, "a boolean");
  set_with_toolbar_and_display(Xen_boolean_to_C_bool(val));
  return(C_bool_to_Xen_boolean(with_toolbar(ss)));
}


static Xen g_with_tooltips(void) {return(C_bool_to_Xen_boolean(with_tooltips(ss)));}

void set_with_tooltips(bool val)
{
  in_set_with_tooltips(val);
}

static Xen g_set_with_tooltips(Xen val) 
{
  #define H_with_tooltips "(" S_with_tooltips "): " PROC_TRUE " if you want tooltips displayed at all"
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_with_tooltips, "a boolean");
  set_with_tooltips(Xen_boolean_to_C_bool(val));
  return(C_bool_to_Xen_boolean(with_tooltips(ss)));
}


void set_with_menu_icons(bool val)
{
  in_set_with_menu_icons(val);
}


static Xen g_with_menu_icons(void) {return(C_bool_to_Xen_boolean(with_menu_icons(ss)));}

static Xen g_set_with_menu_icons(Xen val) 
{
  #define H_with_menu_icons "(" S_with_menu_icons "): " PROC_TRUE " if you want icons in the menus"
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_with_menu_icons, "a boolean");
  set_with_menu_icons(Xen_boolean_to_C_bool(val));
  return(C_bool_to_Xen_boolean(with_menu_icons(ss)));
}


static void set_save_as_dialog_src(bool val)
{
  in_set_save_as_dialog_src(val);
  reflect_save_as_src(val);
}

static Xen g_save_as_dialog_src(void) {return(C_bool_to_Xen_boolean(save_as_dialog_src(ss)));}

static Xen g_set_save_as_dialog_src(Xen val) 
{
  #define H_save_as_dialog_src "(" S_save_as_dialog_src "): " PROC_TRUE " if you want the 'src' button set by default in the various Save-as dialogs"
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_save_as_dialog_src, "a boolean");
  set_save_as_dialog_src(Xen_boolean_to_C_bool(val));
  return(C_bool_to_Xen_boolean(save_as_dialog_src(ss)));
}


static void set_save_as_dialog_auto_comment(bool val)
{
  in_set_save_as_dialog_auto_comment(val);
  reflect_save_as_auto_comment(val);
}

static Xen g_save_as_dialog_auto_comment(void) {return(C_bool_to_Xen_boolean(save_as_dialog_auto_comment(ss)));}

static Xen g_set_save_as_dialog_auto_comment(Xen val) 
{
  #define H_save_as_dialog_auto_comment "(" S_save_as_dialog_auto_comment "): " PROC_TRUE " if you want the 'auto' button set by default in the various Save-as dialogs"
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_save_as_dialog_auto_comment, "a boolean");
  set_save_as_dialog_auto_comment(Xen_boolean_to_C_bool(val));
  return(C_bool_to_Xen_boolean(save_as_dialog_auto_comment(ss)));
}


static Xen g_remember_sound_state(void) {return(C_bool_to_Xen_boolean(remember_sound_state(ss)));}

static Xen g_set_remember_sound_state(Xen val) 
{
  #define H_remember_sound_state "(" S_remember_sound_state "): " PROC_TRUE " if you want a Snd to remember the current \
state of each sound when it is closed, restoring that state when it is opened again later."
  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_remember_sound_state, "a boolean");
  set_remember_sound_state(Xen_boolean_to_C_bool(val)); 
  return(C_bool_to_Xen_boolean(remember_sound_state(ss)));
}


static Xen g_ask_about_unsaved_edits(void) {return(C_bool_to_Xen_boolean(ask_about_unsaved_edits(ss)));}

static Xen g_set_ask_about_unsaved_edits(Xen val) 
{
  #define H_ask_about_unsaved_edits "(" S_ask_about_unsaved_edits "): " PROC_TRUE " if you want Snd to ask whether \
to save unsaved edits when a sound is closed."

  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_ask_about_unsaved_edits, "a boolean");
  set_ask_about_unsaved_edits(Xen_boolean_to_C_bool(val)); 
  return(C_bool_to_Xen_boolean(ask_about_unsaved_edits(ss)));
}


static Xen g_show_full_duration(void) {return(C_bool_to_Xen_boolean(show_full_duration(ss)));}

static Xen g_set_show_full_duration(Xen val) 
{
  int i;
  #define H_show_full_duration "(" S_show_full_duration "): " PROC_TRUE " if you want the entire sound \
displayed whn it is opened."

  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_show_full_duration, "a boolean");
  set_show_full_duration(Xen_boolean_to_C_bool(val)); 
  
  for (i = 0; i < ss->max_sounds; i++)
    {
      snd_info *sp;
      sp = ss->sounds[i];
      if ((sp) && (sp->inuse == SOUND_NORMAL))
	{
	  uint32_t j;
	  for (j = 0; j < sp->nchans; j++)
	    set_x_axis_x0x1(sp->chans[j], 0.0, sp->chans[j]->axis->xmax);
	}
    }

  return(C_bool_to_Xen_boolean(show_full_duration(ss)));
}


static Xen g_initial_beg(void) {return(C_double_to_Xen_real(initial_beg(ss)));}

static Xen g_set_initial_beg(Xen val) 
{
  #define H_initial_beg "(" S_initial_beg "): the begin point (in seconds) for the initial graph of a sound."

  Xen_check_type(Xen_is_number(val), val, 1, S_set S_initial_beg, "a number");
  set_initial_beg(Xen_real_to_C_double(val)); 
  return(C_double_to_Xen_real(initial_beg(ss)));
}


static Xen g_initial_dur(void) {return(C_double_to_Xen_real(initial_dur(ss)));}

static Xen g_set_initial_dur(Xen val) 
{
  #define H_initial_dur "(" S_initial_dur "): the duration (in seconds) for the initial graph of a sound."

  Xen_check_type(Xen_is_number(val), val, 1, S_set S_initial_dur, "a number");
  set_initial_dur(Xen_real_to_C_double(val)); 
  return(C_double_to_Xen_real(initial_dur(ss)));
}


static Xen g_show_full_range(void) {return(C_bool_to_Xen_boolean(show_full_range(ss)));}

static Xen g_set_show_full_range(Xen val) 
{
  int i;
  #define H_show_full_range "(" S_show_full_range "): " PROC_TRUE " if you want the graph y-bounds to accommodate the sound's \
max and min when it is opened."

  Xen_check_type(Xen_is_boolean(val), val, 1, S_set S_show_full_range, "a boolean");
  set_show_full_range(Xen_boolean_to_C_bool(val)); 

  for (i = 0; i < ss->max_sounds; i++)
    {
      snd_info *sp;
      sp = ss->sounds[i];
      if ((sp) && (sp->inuse == SOUND_NORMAL))
	{
	  uint32_t j;
	  for (j = 0; j < sp->nchans; j++)
	    {
	      chan_info *cp;
	      axis_info *ap;
	      mus_float_t hi;
	      cp = sp->chans[j];
	      ap = cp->axis;
	      hi = channel_maxamp(cp, AT_CURRENT_EDIT_POSITION);
	      if (hi > ap->ymax)
		{
		  ap->ymin = -hi;
		  ap->ymax = hi;
		  ap->y_ambit = 2 * hi;
		  ap->y0 = -hi;
		  ap->y1 = hi;
		  ap->zy = 1.0;
		  ap->sy = 0.0;
		  resize_sy_and_zy(cp);
		  apply_y_axis_change(cp);
		}
	    }
	}
    }

  return(C_bool_to_Xen_boolean(show_full_range(ss)));
}




Xen_wrap_1_arg(g_add_sound_file_extension_w, g_add_sound_file_extension)
Xen_wrap_no_args(g_sound_file_extensions_w, g_sound_file_extensions)
Xen_wrap_1_arg(g_set_sound_file_extensions_w, g_set_sound_file_extensions)
Xen_wrap_1_arg(g_file_write_date_w, g_file_write_date)
Xen_wrap_1_optional_arg(g_soundfont_info_w, g_soundfont_info)
Xen_wrap_1_optional_arg(g_sound_files_in_directory_w, g_sound_files_in_directory)
Xen_wrap_1_optional_arg(g_sound_loop_info_w, g_sound_loop_info)
Xen_wrap_2_optional_args(g_set_sound_loop_info_w, g_set_sound_loop_info)
Xen_wrap_1_arg(g_disk_kspace_w, g_disk_kspace)
Xen_wrap_1_optional_arg(g_open_file_dialog_w, g_open_file_dialog)
Xen_wrap_1_optional_arg(g_mix_file_dialog_w, g_mix_file_dialog)
Xen_wrap_1_optional_arg(g_insert_file_dialog_w, g_insert_file_dialog)
Xen_wrap_1_optional_arg(g_edit_header_dialog_w, g_edit_header_dialog)
Xen_wrap_1_optional_arg(g_save_selection_dialog_w, g_save_selection_dialog)
Xen_wrap_1_optional_arg(g_save_region_dialog_w, g_save_region_dialog)
Xen_wrap_1_optional_arg(g_save_sound_dialog_w, g_save_sound_dialog)
Xen_wrap_1_optional_arg(g_new_sound_dialog_w, g_new_sound_dialog)
Xen_wrap_2_args(g_info_dialog_w, g_info_dialog)
Xen_wrap_1_arg(g_is_sound_file_w, g_is_sound_file)
Xen_wrap_no_args(g_snd_tempnam_w, g_snd_tempnam)
Xen_wrap_no_args(g_auto_update_w, g_auto_update)
Xen_wrap_1_arg(g_set_auto_update_w, g_set_auto_update)
Xen_wrap_no_args(g_auto_update_interval_w, g_auto_update_interval)
Xen_wrap_1_arg(g_set_auto_update_interval_w, g_set_auto_update_interval)
Xen_wrap_no_args(g_default_output_chans_w, g_default_output_chans)
Xen_wrap_1_arg(g_set_default_output_chans_w, g_set_default_output_chans)
Xen_wrap_no_args(g_default_output_srate_w, g_default_output_srate)
Xen_wrap_1_arg(g_set_default_output_srate_w, g_set_default_output_srate)
Xen_wrap_no_args(g_default_output_header_type_w, g_default_output_header_type)
Xen_wrap_1_arg(g_set_default_output_header_type_w, g_set_default_output_header_type)
Xen_wrap_no_args(g_default_output_sample_type_w, g_default_output_sample_type)
Xen_wrap_1_arg(g_set_default_output_sample_type_w, g_set_default_output_sample_type)
Xen_wrap_no_args(g_ask_before_overwrite_w, g_ask_before_overwrite)
Xen_wrap_1_arg(g_set_ask_before_overwrite_w, g_set_ask_before_overwrite)
Xen_wrap_no_args(g_with_toolbar_w, g_with_toolbar)
Xen_wrap_1_arg(g_set_with_toolbar_w, g_set_with_toolbar)
Xen_wrap_no_args(g_with_tooltips_w, g_with_tooltips)
Xen_wrap_1_arg(g_set_with_tooltips_w, g_set_with_tooltips)
Xen_wrap_no_args(g_with_menu_icons_w, g_with_menu_icons)
Xen_wrap_1_arg(g_set_with_menu_icons_w, g_set_with_menu_icons)
Xen_wrap_no_args(g_save_as_dialog_src_w, g_save_as_dialog_src)
Xen_wrap_1_arg(g_set_save_as_dialog_src_w, g_set_save_as_dialog_src)
Xen_wrap_no_args(g_save_as_dialog_auto_comment_w, g_save_as_dialog_auto_comment)
Xen_wrap_1_arg(g_set_save_as_dialog_auto_comment_w, g_set_save_as_dialog_auto_comment)
Xen_wrap_no_args(g_remember_sound_state_w, g_remember_sound_state)
Xen_wrap_1_arg(g_set_remember_sound_state_w, g_set_remember_sound_state)
Xen_wrap_no_args(g_ask_about_unsaved_edits_w, g_ask_about_unsaved_edits)
Xen_wrap_1_arg(g_set_ask_about_unsaved_edits_w, g_set_ask_about_unsaved_edits)
Xen_wrap_no_args(g_show_full_duration_w, g_show_full_duration)
Xen_wrap_1_arg(g_set_show_full_duration_w, g_set_show_full_duration)
Xen_wrap_no_args(g_show_full_range_w, g_show_full_range)
Xen_wrap_1_arg(g_set_show_full_range_w, g_set_show_full_range)
Xen_wrap_no_args(g_initial_beg_w, g_initial_beg)
Xen_wrap_1_arg(g_set_initial_beg_w, g_set_initial_beg)
Xen_wrap_no_args(g_initial_dur_w, g_initial_dur)
Xen_wrap_1_arg(g_set_initial_dur_w, g_set_initial_dur)
Xen_wrap_no_args(g_clipping_w, g_clipping)
Xen_wrap_1_arg(g_set_clipping_w, g_set_clipping)
Xen_wrap_1_arg(g_delete_file_filter_w, g_delete_file_filter)
Xen_wrap_2_args(g_add_file_filter_w, g_add_file_filter)


#if HAVE_SCHEME
static s7_pointer acc_default_output_header_type(s7_scheme *sc, s7_pointer args) {return(g_set_default_output_header_type(s7_cadr(args)));}
static s7_pointer acc_default_output_sample_type(s7_scheme *sc, s7_pointer args) {return(g_set_default_output_sample_type(s7_cadr(args)));}
static s7_pointer acc_default_output_chans(s7_scheme *sc, s7_pointer args) {return(g_set_default_output_chans(s7_cadr(args)));}
static s7_pointer acc_default_output_srate(s7_scheme *sc, s7_pointer args) {return(g_set_default_output_srate(s7_cadr(args)));}
static s7_pointer acc_ask_before_overwrite(s7_scheme *sc, s7_pointer args) {return(g_set_ask_before_overwrite(s7_cadr(args)));}
static s7_pointer acc_ask_about_unsaved_edits(s7_scheme *sc, s7_pointer args) {return(g_set_ask_about_unsaved_edits(s7_cadr(args)));}
static s7_pointer acc_show_full_duration(s7_scheme *sc, s7_pointer args) {return(g_set_show_full_duration(s7_cadr(args)));}
static s7_pointer acc_show_full_range(s7_scheme *sc, s7_pointer args) {return(g_set_show_full_range(s7_cadr(args)));}
static s7_pointer acc_remember_sound_state(s7_scheme *sc, s7_pointer args) {return(g_set_remember_sound_state(s7_cadr(args)));}
static s7_pointer acc_save_as_dialog_src(s7_scheme *sc, s7_pointer args) {return(g_set_save_as_dialog_src(s7_cadr(args)));}
static s7_pointer acc_save_as_dialog_auto_comment(s7_scheme *sc, s7_pointer args) {return(g_set_save_as_dialog_auto_comment(s7_cadr(args)));}
static s7_pointer acc_with_toolbar(s7_scheme *sc, s7_pointer args) {return(g_set_with_toolbar(s7_cadr(args)));}
static s7_pointer acc_with_tooltips(s7_scheme *sc, s7_pointer args) {return(g_set_with_tooltips(s7_cadr(args)));}
static s7_pointer acc_with_menu_icons(s7_scheme *sc, s7_pointer args) {return(g_set_with_menu_icons(s7_cadr(args)));}
static s7_pointer acc_initial_beg(s7_scheme *sc, s7_pointer args) {return(g_set_initial_beg(s7_cadr(args)));}
static s7_pointer acc_initial_dur(s7_scheme *sc, s7_pointer args) {return(g_set_initial_dur(s7_cadr(args)));}
static s7_pointer acc_auto_update(s7_scheme *sc, s7_pointer args) {return(g_set_auto_update(s7_cadr(args)));}
static s7_pointer acc_auto_update_interval(s7_scheme *sc, s7_pointer args) {return(g_set_auto_update_interval(s7_cadr(args)));}
static s7_pointer acc_clipping(s7_scheme *sc, s7_pointer args) {return(g_set_clipping(s7_cadr(args)));}
#endif


void g_init_file(void)
{
#if HAVE_SCHEME
  s7_pointer pl_b, pl_bb, pl_i, pl_ii, pl_s, pl_ss, pl_d, pl_dr, pl_zb, pl_l, pl_ll, pl_bs, pl_is, pl_lt, pl_zt, pl_zss, pl_ltl, pl_ls, pl_isf;
  {
    s7_pointer i, b, d, r, s, p, l, t, z;
    i = s7_make_symbol(s7, "integer?");
    b = s7_make_symbol(s7, "boolean?");
    d = s7_make_symbol(s7, "float?");
    r = s7_make_symbol(s7, "real?");
    s = s7_make_symbol(s7, "string?");
    p = s7_make_symbol(s7, "pair?");
    l = s7_make_symbol(s7, "list?");
    t = s7_t(s7);
    
    z = s7_make_signature(s7, 2, b, p);
    pl_b = s7_make_signature(s7, 1, b);
    pl_bb = s7_make_signature(s7, 2, b, b);
    pl_bs = s7_make_signature(s7, 2, b, s);
    pl_i = s7_make_signature(s7, 1, i);
    pl_ii = s7_make_signature(s7, 2, i, i);
    pl_is = s7_make_signature(s7, 2, i, s);
    pl_s = s7_make_signature(s7, 1, s);
    pl_ss = s7_make_signature(s7, 2, s, s);
    pl_d = s7_make_signature(s7, 1, d);
    pl_dr = s7_make_signature(s7, 2, d, r);
    pl_zb = s7_make_signature(s7, 2, z, b);
    pl_zt = s7_make_signature(s7, 2, z, t);
    pl_zss = s7_make_signature(s7, 3, z, s, s);
    pl_l = s7_make_signature(s7, 1, l);
    pl_ll = s7_make_signature(s7, 2, l, l);
    pl_lt = s7_make_signature(s7, 2, l, t);
    pl_ls = s7_make_signature(s7, 2, l, s);
    pl_ltl = s7_make_signature(s7, 3, l, t, l);
    pl_isf = s7_make_signature(s7, 3, i, s, s7_make_symbol(s7, "procedure?"));
  }
#endif

  Xen_define_typed_procedure(S_add_sound_file_extension, g_add_sound_file_extension_w, 1, 0, 0, H_add_sound_file_extension, pl_ss);
  Xen_define_typed_dilambda(S_sound_file_extensions, g_sound_file_extensions_w, H_sound_file_extensions,
			    S_set S_sound_file_extensions, g_set_sound_file_extensions_w,  0, 0, 1, 0, pl_l, pl_ll);

  Xen_define_typed_procedure(S_is_sound_file,              g_is_sound_file_w,              1, 0, 0, H_is_sound_file,	    pl_bs);
  Xen_define_typed_procedure(S_file_write_date,            g_file_write_date_w,            1, 0, 0, H_file_write_date,	    pl_is);
  Xen_define_typed_procedure(S_soundfont_info,             g_soundfont_info_w,             0, 1, 0, H_soundfont_info,	    pl_lt);
  Xen_define_typed_procedure(S_sound_files_in_directory,   g_sound_files_in_directory_w,   0, 1, 0, H_sound_files_in_directory, pl_ls);
  Xen_define_typed_procedure(S_disk_kspace,                g_disk_kspace_w,                1, 0, 0, H_disk_kspace,	    pl_is);

  Xen_define_typed_procedure(S_open_file_dialog,           g_open_file_dialog_w,           0, 1, 0, H_open_file_dialog,     pl_zb);
  Xen_define_typed_procedure(S_mix_file_dialog,            g_mix_file_dialog_w,            0, 1, 0, H_mix_file_dialog,	    pl_zb);
  Xen_define_typed_procedure(S_insert_file_dialog,         g_insert_file_dialog_w,         0, 1, 0, H_insert_file_dialog,   pl_zb);
  Xen_define_typed_procedure(S_edit_header_dialog,         g_edit_header_dialog_w,         0, 1, 0, H_edit_header_dialog,   pl_zt);
  Xen_define_typed_procedure(S_save_selection_dialog,      g_save_selection_dialog_w,      0, 1, 0, H_save_selection_dialog, pl_zb);
  Xen_define_typed_procedure(S_save_region_dialog,         g_save_region_dialog_w,         0, 1, 0, H_save_region_dialog,   pl_zb);
  Xen_define_typed_procedure(S_save_sound_dialog,          g_save_sound_dialog_w,          0, 1, 0, H_save_sound_dialog,    pl_zb);
  Xen_define_typed_procedure(S_new_sound_dialog,           g_new_sound_dialog_w,           0, 1, 0, H_new_sound_dialog,     pl_zb);
  Xen_define_typed_procedure(S_info_dialog,                g_info_dialog_w,                2, 0, 0, H_info_dialog,          pl_zss);

  Xen_define_typed_dilambda(S_sound_loop_info,      g_sound_loop_info_w, H_sound_loop_info,
			    S_set S_sound_loop_info, g_set_sound_loop_info_w,  0, 1, 1, 1, pl_lt, pl_ltl);

  Xen_define_variable(S_snd_opened_sound, snd_opened_sound, Xen_false);

  #define H_open_hook S_open_hook " (name): called each time a file is opened (before the actual open). \
If it returns " PROC_TRUE ", the file is not opened."

  #define H_before_close_hook S_before_close_hook " (snd): called each time a file is closed (before the close). \
If it returns " PROC_TRUE ", the file is not closed."

  #define H_close_hook S_close_hook " (snd): called each time a file is closed (before the close)."

  #define H_bad_header_hook S_bad_header_hook " (name): called if a file has some bogus-looking header. \
Return " PROC_TRUE " to give up on that file."

  #define H_after_save_as_hook S_after_save_as_hook " (snd name dialog): called \
upon File:Save as or " S_save_sound_as " completion."

  #define H_before_save_as_hook S_before_save_as_hook " (snd name selection sampling-rate sample-type header-type comment): called \
before File:Save as or " S_save_sound_as ". Provides a way to fixup a sound just before it is saved."

  #define H_during_open_hook S_during_open_hook " (fd name reason): called after file is opened, but before data has been read."

#if HAVE_SCHEME
  #define H_after_open_hook S_after_open_hook " (snd): called just before the new file's window is displayed. \
This provides a way to set various sound-specific defaults. \n\
  (hook-push " S_after_open_hook "\n\
    (lambda (snd) \n\
      (if (> (" S_channels " snd) 1) \n\
          (set! (" S_channel_style " snd) " S_channels_combined "))))"
#endif

#if HAVE_RUBY
  #define H_after_open_hook S_after_open_hook " (snd): called just before the new file's window is displayed. \
This provides a way to set various sound-specific defaults. \n\
  $after_open_hook.add-hook!(\"set-channels-combined\") do |snd| \n\
    if (channels(snd) > 1) \n\
      set_channel_style(Channels_combined, snd)\n\
    end\n\
  end"
#endif

#if HAVE_FORTH
  #define H_after_open_hook S_after_open_hook " (snd): called just before the new file's window is displayed. \
This provides a way to set various sound-specific defaults. \n\
" S_after_open_hook " lambda: <{ snd }>\n\
  snd " S_channels " 1 > if\n\
    " S_channels_combined " snd set-" S_channel_style "\n\
  else\n\
    #f\n\
  then\n\
; add-hook!"
#endif

  open_hook =           Xen_define_hook(S_open_hook,           "(make-hook 'name)",                1, H_open_hook);
  before_close_hook =   Xen_define_hook(S_before_close_hook,   "(make-hook 'snd)",                 1, H_before_close_hook);
  close_hook =          Xen_define_hook(S_close_hook,          "(make-hook 'snd)",                 1, H_close_hook);
  bad_header_hook =     Xen_define_hook(S_bad_header_hook,     "(make-hook 'name)",                1, H_bad_header_hook);
  after_save_as_hook =  Xen_define_hook(S_after_save_as_hook,  "(make-hook 'snd 'name 'dialog)",   3, H_after_save_as_hook);
  before_save_as_hook = Xen_define_hook(S_before_save_as_hook, "(make-hook 'snd 'name 'selection 'sampling-rate 'sample-type 'header-type 'comment)", 7, H_before_save_as_hook); 
  during_open_hook =    Xen_define_hook(S_during_open_hook,    "(make-hook 'fd 'name 'reason)",    3, H_during_open_hook);
  after_open_hook =     Xen_define_hook(S_after_open_hook,     "(make-hook 'snd)",                 1, H_after_open_hook);

  #define H_open_raw_sound_hook S_open_raw_sound_hook " (name state): called when a headerless sound file is opened. \
Its result can be a list describing the raw file's attributes (thereby bypassing the Raw File Dialog and so on). \
The list is interpreted as (list chans srate sample-type data-location data-length) where trailing elements can \
be omitted (location defaults to 0, and length defaults to the file length in bytes)."

  open_raw_sound_hook = Xen_define_hook(S_open_raw_sound_hook, "(make-hook 'name 'state)", 2, H_open_raw_sound_hook);

  #define H_update_hook S_update_hook " (snd): called just before " S_update_sound " is called. \
The update process can  be triggered by a variety of situations, not just by " S_update_sound ". \
The hook is passed the sound's index.  If it returns " PROC_TRUE ", the update is cancelled (this is not \
recommended!); if it returns a procedure of one argument, that procedure is called upon \
completion of the update operation; its argument is the (possibly different) sound index. \
Snd tries to maintain the index across the update, but if you change the number of channels \
the newly updated sound may have a different index."

  update_hook = Xen_define_hook(S_update_hook, "(make-hook 'snd)", 1, H_update_hook);

  Xen_define_typed_procedure(S_snd_tempnam,        g_snd_tempnam_w,        0, 0, 0, H_snd_tempnam, pl_s);

  Xen_define_typed_dilambda(S_auto_update, g_auto_update_w, H_auto_update,
			    S_set S_auto_update, g_set_auto_update_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_auto_update_interval, g_auto_update_interval_w, H_auto_update_interval,
			    S_set S_auto_update_interval, g_set_auto_update_interval_w,  0, 0, 1, 0, pl_d, pl_dr);
  
  Xen_define_typed_dilambda(S_ask_before_overwrite, g_ask_before_overwrite_w, H_ask_before_overwrite,
			    S_set S_ask_before_overwrite, g_set_ask_before_overwrite_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_with_toolbar, g_with_toolbar_w, H_with_toolbar,
			    S_set S_with_toolbar, g_set_with_toolbar_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_with_tooltips, g_with_tooltips_w, H_with_tooltips,
			    S_set S_with_tooltips, g_set_with_tooltips_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_with_menu_icons, g_with_menu_icons_w, H_with_menu_icons,
			    S_set S_with_menu_icons, g_set_with_menu_icons_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_save_as_dialog_src, g_save_as_dialog_src_w, H_save_as_dialog_src,
			    S_set S_save_as_dialog_src, g_set_save_as_dialog_src_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_save_as_dialog_auto_comment, g_save_as_dialog_auto_comment_w, H_save_as_dialog_auto_comment,
			    S_set S_save_as_dialog_auto_comment, g_set_save_as_dialog_auto_comment_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_remember_sound_state, g_remember_sound_state_w, H_remember_sound_state,
			    S_set S_remember_sound_state, g_set_remember_sound_state_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_ask_about_unsaved_edits, g_ask_about_unsaved_edits_w, H_ask_about_unsaved_edits,
			    S_set S_ask_about_unsaved_edits, g_set_ask_about_unsaved_edits_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_show_full_duration, g_show_full_duration_w, H_show_full_duration,
			    S_set S_show_full_duration, g_set_show_full_duration_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_show_full_range, g_show_full_range_w, H_show_full_range,
			    S_set S_show_full_range, g_set_show_full_range_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_dilambda(S_initial_beg, g_initial_beg_w, H_initial_beg,
			    S_set S_initial_beg, g_set_initial_beg_w,  0, 0, 1, 0, pl_d, pl_dr);
  
  Xen_define_typed_dilambda(S_initial_dur, g_initial_dur_w, H_initial_dur,
			    S_set S_initial_dur, g_set_initial_dur_w,  0, 0, 1, 0, pl_d, pl_dr);
  
  Xen_define_typed_dilambda(S_default_output_chans, g_default_output_chans_w, H_default_output_chans,
			    S_set S_default_output_chans, g_set_default_output_chans_w,  0, 0, 1, 0, pl_i, pl_ii);
  
  Xen_define_typed_dilambda(S_default_output_srate, g_default_output_srate_w, H_default_output_srate,
			    S_set S_default_output_srate, g_set_default_output_srate_w,  0, 0, 1, 0, pl_i, pl_ii);
  
  Xen_define_typed_dilambda(S_default_output_header_type, g_default_output_header_type_w, H_default_output_header_type,
			    S_set S_default_output_header_type, g_set_default_output_header_type_w,  0, 0, 1, 0, pl_i, pl_ii);
  
  Xen_define_typed_dilambda(S_default_output_sample_type, g_default_output_sample_type_w, H_default_output_sample_type,
			    S_set S_default_output_sample_type, g_set_default_output_sample_type_w,  0, 0, 1, 0, pl_i, pl_ii);
  Xen_define_typed_dilambda(S_clipping, g_clipping_w, H_clipping,
			    S_set S_clipping, g_set_clipping_w,  0, 0, 1, 0, pl_b, pl_bb);
  
  Xen_define_typed_procedure(S_add_file_filter,    g_add_file_filter_w,    2, 0, 0, H_add_file_filter, pl_isf);
  Xen_define_typed_procedure(S_delete_file_filter, g_delete_file_filter_w, 1, 0, 0, H_delete_file_filter, pl_ii);

  ss->file_filters_size = INITIAL_FILE_FILTERS_SIZE;
  ss->file_filters = Xen_make_vector(ss->file_filters_size, Xen_false);
  Xen_GC_protect(ss->file_filters);

#if HAVE_SCHEME
  s7_set_documentation(s7, ss->default_output_header_type_symbol, "*default-output-header-type*: header type when a new file is created (mus-next etc)");
  s7_set_documentation(s7, ss->default_output_sample_type_symbol, "*default-output-sample-type*: sample type when a new file is created (mus-ldouble etc)");
  s7_set_documentation(s7, ss->default_output_chans_symbol, "*default-output-chans*: number of channels when a new file is created (1)");
  s7_set_documentation(s7, ss->default_output_srate_symbol, "*default-output-srate*: sampling rate when a new file is created (44100)");
  s7_set_documentation(s7, ss->ask_before_overwrite_symbol, "*ask-before-overwrite*: #t if you want Snd to ask before overwriting a file.");
  s7_set_documentation(s7, ss->ask_about_unsaved_edits_symbol, "*ask-about-unsaved-edits*: #t if you want Snd to ask whether to save unsaved edits when a sound is closed.");
  s7_set_documentation(s7, ss->show_full_duration_symbol, "*show-full-duration*: #t if you want the entire sound displayed whn it is opened.");
  s7_set_documentation(s7, ss->show_full_range_symbol, "*show-full-range*: #t if you want the graph y-bounds to accommodate the sound's max and min when it is opened.");
  s7_set_documentation(s7, ss->remember_sound_state_symbol, "*remember-sound-state*: #t if you want a Snd to remember the current state of each sound when it is closed, restoring that state when it is opened again later.");
  s7_set_documentation(s7, ss->save_as_dialog_src_symbol, "*save-as-dialog-src*: #t if you want the 'src' button set by default in the various Save-as dialogs");
  s7_set_documentation(s7, ss->save_as_dialog_auto_comment_symbol, "*save-as-dialog-auto-comment*: #t if you want the 'auto' button set by default in the various Save-as dialogs");
  s7_set_documentation(s7, ss->with_toolbar_symbol, "*with-toolbar*: #t if you want a toolbar");
  s7_set_documentation(s7, ss->with_tooltips_symbol, "*with-tooltips*: #t if you want tooltips");
  s7_set_documentation(s7, ss->with_menu_icons_symbol, "*with-menu-icons*: #t if you want icons in the menus");
  s7_set_documentation(s7, ss->initial_beg_symbol, "*initial-beg*: the begin point (in seconds) for the initial graph of a sound.");
  s7_set_documentation(s7, ss->initial_dur_symbol, "*initial-dur*: the duration (in seconds) for the initial graph of a sound.");
  s7_set_documentation(s7, ss->auto_update_symbol, "*auto-update*: #t if Snd should automatically update a file if it changes unexpectedly");
  s7_set_documentation(s7, ss->auto_update_interval_symbol, "*auto-update-interval*: time (seconds) between background checks for changed file on disk (60)");
  s7_set_documentation(s7, ss->clipping_symbol, "*clipping*: #t if Snd should clip output values");

 
  s7_set_setter(s7, ss->default_output_header_type_symbol, s7_make_function(s7, "[acc-" S_default_output_header_type "]", acc_default_output_header_type, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->default_output_sample_type_symbol, s7_make_function(s7, "[acc-" S_default_output_sample_type "]", acc_default_output_sample_type, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->default_output_chans_symbol, s7_make_function(s7, "[acc-" S_default_output_chans "]", acc_default_output_chans, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->default_output_srate_symbol, s7_make_function(s7, "[acc-" S_default_output_srate "]", acc_default_output_srate, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->ask_before_overwrite_symbol, s7_make_function(s7, "[acc-" S_ask_before_overwrite "]", acc_ask_before_overwrite, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->ask_about_unsaved_edits_symbol, s7_make_function(s7, "[acc-" S_ask_about_unsaved_edits "]", acc_ask_about_unsaved_edits, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->show_full_duration_symbol, s7_make_function(s7, "[acc-" S_show_full_duration "]", acc_show_full_duration, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->show_full_range_symbol, s7_make_function(s7, "[acc-" S_show_full_range "]", acc_show_full_range, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->remember_sound_state_symbol, s7_make_function(s7, "[acc-" S_remember_sound_state "]", acc_remember_sound_state, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->save_as_dialog_src_symbol, s7_make_function(s7, "[acc-" S_save_as_dialog_src "]", acc_save_as_dialog_src, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->save_as_dialog_auto_comment_symbol, s7_make_function(s7, "[acc-" S_save_as_dialog_auto_comment "]", acc_save_as_dialog_auto_comment, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->with_toolbar_symbol, s7_make_function(s7, "[acc-" S_with_toolbar "]", acc_with_toolbar, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->with_tooltips_symbol, s7_make_function(s7, "[acc-" S_with_tooltips "]", acc_with_tooltips, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->with_menu_icons_symbol, s7_make_function(s7, "[acc-" S_with_menu_icons "]", acc_with_menu_icons, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->initial_beg_symbol, s7_make_function(s7, "[acc-" S_initial_beg "]", acc_initial_beg, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->initial_dur_symbol, s7_make_function(s7, "[acc-" S_initial_dur "]", acc_initial_dur, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->auto_update_symbol, s7_make_function(s7, "[acc-" S_auto_update "]", acc_auto_update, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->auto_update_interval_symbol, s7_make_function(s7, "[acc-" S_auto_update_interval "]", acc_auto_update_interval, 2, 0, false, "accessor"));
  s7_set_setter(s7, ss->clipping_symbol, s7_make_function(s7, "[acc-" S_clipping "]", acc_clipping, 2, 0, false, "accessor"));
#endif
}

