Image consolidation:

(Vx_bitmap_file_path, Vimage_cache_eviction_delay)
(x_bitmap_height, x_bitmap_width, x_bitmap_pixmap)
(x_reference_bitmap, x_create_bitmap_from_data)
(x_create_bitmap_from_file, x_destroy_bitmap)
(x_destroy_all_bitmaps, x_create_bitmap_mask)
(QCascent, QCmargin, QCrelief, QCconversion, QCcolor_symbols)
(QCheuristic_mask, QCindex, QCmatrix, QCcolor_adjustment, QCmask)
(Qlaplace, Qemboss, Qedge_detection, Qheuristic, Qcenter)
(define_image_type, lookup_image_type, valid_image_p)
(image_error, enum image_value_type, struct image_keyword)
(parse_image_spec, image_spec_value, Fimage_size, Fimage_mask_p)
(make_image, free_image, prepare_image_for_display, image_ascent)
(four_corners_best, image_background, image_background_transparent)
(x_clear_image_1,  x_clear_image, x_alloc_image_color)
(make_image_cache, free_image_cache, clear_image_cache)
(Fclear_image_cache, postprocess_image, lookup_image, cache_image)
(forall_images_in_image_cache, x_create_x_image_and_pixmap)
(x_destroy_x_image, x_put_x_image, x_find_image_file, slurp_file)
(struct ct_color, init_color_table, free_color_table)
(lookup_rgb_color, lookup_pixel_color, colors_in_color_table)
(cross_disabled_images, x_to_xcolors, x_from_xcolors)
(x_detect_edges, x_emboss, x_laplace, x_edge_detection)
(x_disable_image, x_build_heuristic_mask)
(XBM support, XPM support, PBM support, PNG support, JPEG support)
(TIFF support, GIF support, Ghostscript support): Merge with image
code from xfns.c and macfns.c into image.c.
(syms_of_xfns): Move image related symbols to image.c.
(init_external_image_libraries, init_xfns): Remove; initialization
moved to init_image in image.c.

1 files changed, 0 insertions, 5858 deletions

diff --git a/src/w32fns.c b/src/w32fns.c
index 015b406db8..f9a81a1999 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -58,7 +58,6 @@ Boston, MA 02111-1307, USA.  */
 
 void syms_of_w32fns ();
 void globals_of_w32fns ();
-static void init_external_image_libraries ();
 
 extern void free_frame_menubar ();
 extern double atof ();
@@ -171,10 +170,6 @@ Lisp_Object Vx_cursor_fore_pixel;
 
 static int w32_in_use;
 
-/* Search path for bitmap files.  */
-
-Lisp_Object Vx_bitmap_file_path;
-
 /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
 
 Lisp_Object Vx_pixel_size_width_font_regexp;
@@ -200,7 +195,6 @@ Lisp_Object Vw32_charset_info_alist;
 Lisp_Object Qnone;
 Lisp_Object Qsuppress_icon;
 Lisp_Object Qundefined_color;
-Lisp_Object Qcenter;
 Lisp_Object Qcancel_timer;
 Lisp_Object Qhyper;
 Lisp_Object Qsuper;
@@ -396,225 +390,6 @@ x_window_to_frame (dpyinfo, wdesc)
 }
 
 
-
-/* Code to deal with bitmaps.  Bitmaps are referenced by their bitmap
-   id, which is just an int that this section returns.  Bitmaps are
-   reference counted so they can be shared among frames.
-
-   Bitmap indices are guaranteed to be > 0, so a negative number can
-   be used to indicate no bitmap.
-
-   If you use x_create_bitmap_from_data, then you must keep track of
-   the bitmaps yourself.  That is, creating a bitmap from the same
-   data more than once will not be caught.  */
-
-
-/* Functions to access the contents of a bitmap, given an id.  */
-
-int
-x_bitmap_height (f, id)
-     FRAME_PTR f;
-     int id;
-{
-  return FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].height;
-}
-
-int
-x_bitmap_width (f, id)
-     FRAME_PTR f;
-     int id;
-{
-  return FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].width;
-}
-
-int
-x_bitmap_pixmap (f, id)
-     FRAME_PTR f;
-     int id;
-{
-  return (int) FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].pixmap;
-}
-
-
-/* Allocate a new bitmap record.  Returns index of new record.  */
-
-static int
-x_allocate_bitmap_record (f)
-     FRAME_PTR f;
-{
-  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
-  int i;
-
-  if (dpyinfo->bitmaps == NULL)
-    {
-      dpyinfo->bitmaps_size = 10;
-      dpyinfo->bitmaps
-	= (struct w32_bitmap_record *) xmalloc (dpyinfo->bitmaps_size * sizeof (struct w32_bitmap_record));
-      dpyinfo->bitmaps_last = 1;
-      return 1;
-    }
-
-  if (dpyinfo->bitmaps_last < dpyinfo->bitmaps_size)
-    return ++dpyinfo->bitmaps_last;
-
-  for (i = 0; i < dpyinfo->bitmaps_size; ++i)
-    if (dpyinfo->bitmaps[i].refcount == 0)
-      return i + 1;
-
-  dpyinfo->bitmaps_size *= 2;
-  dpyinfo->bitmaps
-    = (struct w32_bitmap_record *) xrealloc (dpyinfo->bitmaps,
-					   dpyinfo->bitmaps_size * sizeof (struct w32_bitmap_record));
-  return ++dpyinfo->bitmaps_last;
-}
-
-/* Add one reference to the reference count of the bitmap with id ID.  */
-
-void
-x_reference_bitmap (f, id)
-     FRAME_PTR f;
-     int id;
-{
-  ++FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].refcount;
-}
-
-/* Create a bitmap for frame F from a HEIGHT x WIDTH array of bits at BITS.  */
-
-int
-x_create_bitmap_from_data (f, bits, width, height)
-     struct frame *f;
-     char *bits;
-     unsigned int width, height;
-{
-  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
-  Pixmap bitmap;
-  int id;
-
-  bitmap = CreateBitmap (width, height,
-			 FRAME_W32_DISPLAY_INFO (XFRAME (frame))->n_planes,
-			 FRAME_W32_DISPLAY_INFO (XFRAME (frame))->n_cbits,
-			 bits);
-
-  if (! bitmap)
-    return -1;
-
-  id = x_allocate_bitmap_record (f);
-  dpyinfo->bitmaps[id - 1].pixmap = bitmap;
-  dpyinfo->bitmaps[id - 1].file = NULL;
-  dpyinfo->bitmaps[id - 1].hinst = NULL;
-  dpyinfo->bitmaps[id - 1].refcount = 1;
-  dpyinfo->bitmaps[id - 1].depth = 1;
-  dpyinfo->bitmaps[id - 1].height = height;
-  dpyinfo->bitmaps[id - 1].width = width;
-
-  return id;
-}
-
-/* Create bitmap from file FILE for frame F.  */
-
-int
-x_create_bitmap_from_file (f, file)
-     struct frame *f;
-     Lisp_Object file;
-{
-  return -1;
-#if 0 /* TODO : bitmap support */
-  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
-  unsigned int width, height;
-  HBITMAP bitmap;
-  int xhot, yhot, result, id;
-  Lisp_Object found;
-  int fd;
-  char *filename;
-  HINSTANCE hinst;
-
-  /* Look for an existing bitmap with the same name.  */
-  for (id = 0; id < dpyinfo->bitmaps_last; ++id)
-    {
-      if (dpyinfo->bitmaps[id].refcount
-	  && dpyinfo->bitmaps[id].file
-	  && !strcmp (dpyinfo->bitmaps[id].file, (char *) SDATA (file)))
-	{
-	  ++dpyinfo->bitmaps[id].refcount;
-	  return id + 1;
-	}
-    }
-
-  /* Search bitmap-file-path for the file, if appropriate.  */
-  fd = openp (Vx_bitmap_file_path, file, Qnil, &found, Qnil);
-  if (fd < 0)
-    return -1;
-  emacs_close (fd);
-
-  filename = (char *) SDATA (found);
-
-  hinst = LoadLibraryEx (filename, NULL, LOAD_LIBRARY_AS_DATAFILE);
-
-  if (hinst == NULL)
-      return -1;
-
-
-  result = XReadBitmapFile (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
-			    filename, &width, &height, &bitmap, &xhot, &yhot);
-  if (result != BitmapSuccess)
-    return -1;
-
-  id = x_allocate_bitmap_record (f);
-  dpyinfo->bitmaps[id - 1].pixmap = bitmap;
-  dpyinfo->bitmaps[id - 1].refcount = 1;
-  dpyinfo->bitmaps[id - 1].file = (char *) xmalloc (SCHARS (file) + 1);
-  dpyinfo->bitmaps[id - 1].depth = 1;
-  dpyinfo->bitmaps[id - 1].height = height;
-  dpyinfo->bitmaps[id - 1].width = width;
-  strcpy (dpyinfo->bitmaps[id - 1].file, SDATA (file));
-
-  return id;
-#endif  /* TODO */
-}
-
-/* Remove reference to bitmap with id number ID.  */
-
-void
-x_destroy_bitmap (f, id)
-     FRAME_PTR f;
-     int id;
-{
-  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
-
-  if (id > 0)
-    {
-      --dpyinfo->bitmaps[id - 1].refcount;
-      if (dpyinfo->bitmaps[id - 1].refcount == 0)
-	{
-	  BLOCK_INPUT;
-	  DeleteObject (dpyinfo->bitmaps[id - 1].pixmap);
-	  if (dpyinfo->bitmaps[id - 1].file)
-	    {
-	      xfree (dpyinfo->bitmaps[id - 1].file);
-	      dpyinfo->bitmaps[id - 1].file = NULL;
-	    }
-	  UNBLOCK_INPUT;
-	}
-    }
-}
-
-/* Free all the bitmaps for the display specified by DPYINFO.  */
-
-static void
-x_destroy_all_bitmaps (dpyinfo)
-     struct w32_display_info *dpyinfo;
-{
-  int i;
-  for (i = 0; i < dpyinfo->bitmaps_last; i++)
-    if (dpyinfo->bitmaps[i].refcount > 0)
-      {
-	DeleteObject (dpyinfo->bitmaps[i].pixmap);
-	if (dpyinfo->bitmaps[i].file)
-	  xfree (dpyinfo->bitmaps[i].file);
-      }
-  dpyinfo->bitmaps_last = 0;
-}
-
 BOOL my_show_window P_ ((struct frame *, HWND, int));
 void my_set_window_pos P_ ((HWND, HWND, int, int, int, int, UINT));
 static Lisp_Object unwind_create_frame P_ ((Lisp_Object));
@@ -6929,5475 +6704,6 @@ DEFUN ("x-synchronize", Fx_synchronize, Sx_synchronize, 1, 2, 0,
   return Qnil;
 }
 
-
-/***********************************************************************
-			    Image types
- ***********************************************************************/
-
-/* Value is the number of elements of vector VECTOR.  */
-
-#define DIM(VECTOR)	(sizeof (VECTOR) / sizeof *(VECTOR))
-
-/* List of supported image types.  Use define_image_type to add new
-   types.  Use lookup_image_type to find a type for a given symbol.  */
-
-static struct image_type *image_types;
-
-/* The symbol `xbm' which is used as the type symbol for XBM images.  */
-
-Lisp_Object Qxbm;
-
-/* Keywords.  */
-
-extern Lisp_Object QCwidth, QCheight, QCforeground, QCbackground, QCfile;
-extern Lisp_Object QCdata, QCtype;
-Lisp_Object QCascent, QCmargin, QCrelief;
-Lisp_Object QCconversion, QCcolor_symbols, QCheuristic_mask;
-Lisp_Object QCindex, QCmatrix, QCcolor_adjustment, QCmask;
-
-/* Other symbols.  */
-
-Lisp_Object Qlaplace, Qemboss, Qedge_detection, Qheuristic;
-
-/* Time in seconds after which images should be removed from the cache
-   if not displayed.  */
-
-Lisp_Object Vimage_cache_eviction_delay;
-
-/* Function prototypes.  */
-
-static void define_image_type P_ ((struct image_type *type));
-static struct image_type *lookup_image_type P_ ((Lisp_Object symbol));
-static void image_error P_ ((char *format, Lisp_Object, Lisp_Object));
-static void x_laplace P_ ((struct frame *, struct image *));
-static void x_emboss P_ ((struct frame *, struct image *));
-static int x_build_heuristic_mask P_ ((struct frame *, struct image *,
-				       Lisp_Object));
-
-
-/* Define a new image type from TYPE.  This adds a copy of TYPE to
-   image_types and adds the symbol *TYPE->type to Vimage_types.  */
-
-static void
-define_image_type (type)
-     struct image_type *type;
-{
-  /* Make a copy of TYPE to avoid a bus error in a dumped Emacs.
-     The initialized data segment is read-only.  */
-  struct image_type *p = (struct image_type *) xmalloc (sizeof *p);
-  bcopy (type, p, sizeof *p);
-  p->next = image_types;
-  image_types = p;
-  Vimage_types = Fcons (*p->type, Vimage_types);
-}
-
-
-/* Look up image type SYMBOL, and return a pointer to its image_type
-   structure.  Value is null if SYMBOL is not a known image type.  */
-
-static INLINE struct image_type *
-lookup_image_type (symbol)
-     Lisp_Object symbol;
-{
-  struct image_type *type;
-
-  for (type = image_types; type; type = type->next)
-    if (EQ (symbol, *type->type))
-      break;
-
-  return type;
-}
-
-
-/* Value is non-zero if OBJECT is a valid Lisp image specification.  A
-   valid image specification is a list whose car is the symbol
-   `image', and whose rest is a property list.  The property list must
-   contain a value for key `:type'.  That value must be the name of a
-   supported image type.  The rest of the property list depends on the
-   image type.  */
-
-int
-valid_image_p (object)
-     Lisp_Object object;
-{
-  int valid_p = 0;
-
-  if (IMAGEP (object))
-    {
-      Lisp_Object tem;
-
-      for (tem = XCDR (object); CONSP (tem); tem = XCDR (tem))
-	if (EQ (XCAR (tem), QCtype))
-	  {
-	    tem = XCDR (tem);
-	    if (CONSP (tem) && SYMBOLP (XCAR (tem)))
-	      {
-		struct image_type *type;
-		type = lookup_image_type (XCAR (tem));
-		if (type)
-		  valid_p = type->valid_p (object);
-	      }
-
-	    break;
-	  }
-    }
-
-  return valid_p;
-}
-
-
-/* Log error message with format string FORMAT and argument ARG.
-   Signaling an error, e.g. when an image cannot be loaded, is not a
-   good idea because this would interrupt redisplay, and the error
-   message display would lead to another redisplay. This function
-   therefore simply displays a message. */
-
-static void
-image_error (format, arg1, arg2)
-     char *format;
-     Lisp_Object arg1, arg2;
-{
-  add_to_log (format, arg1, arg2);
-}
-
-
-
-/***********************************************************************
-			 Image specifications
- ***********************************************************************/
-
-enum image_value_type
-{
-  IMAGE_DONT_CHECK_VALUE_TYPE,
-  IMAGE_STRING_VALUE,
-  IMAGE_STRING_OR_NIL_VALUE,
-  IMAGE_SYMBOL_VALUE,
-  IMAGE_POSITIVE_INTEGER_VALUE,
-  IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,
-  IMAGE_NON_NEGATIVE_INTEGER_VALUE,
-  IMAGE_ASCENT_VALUE,
-  IMAGE_INTEGER_VALUE,
-  IMAGE_FUNCTION_VALUE,
-  IMAGE_NUMBER_VALUE,
-  IMAGE_BOOL_VALUE
-};
-
-/* Structure used when parsing image specifications.  */
-
-struct image_keyword
-{
-  /* Name of keyword.  */
-  char *name;
-
-  /* The type of value allowed.  */
-  enum image_value_type type;
-
-  /* Non-zero means key must be present.  */
-  int mandatory_p;
-
-  /* Used to recognize duplicate keywords in a property list.  */
-  int count;
-
-  /* The value that was found.  */
-  Lisp_Object value;
-};
-
-
-static int parse_image_spec P_ ((Lisp_Object, struct image_keyword *,
-				 int, Lisp_Object));
-static Lisp_Object image_spec_value P_ ((Lisp_Object, Lisp_Object, int *));
-
-
-/* Parse image spec SPEC according to KEYWORDS.  A valid image spec
-   has the format (image KEYWORD VALUE ...).  One of the keyword/
-   value pairs must be `:type TYPE'.  KEYWORDS is a vector of
-   image_keywords structures of size NKEYWORDS describing other
-   allowed keyword/value pairs.  Value is non-zero if SPEC is valid.  */
-
-static int
-parse_image_spec (spec, keywords, nkeywords, type)
-     Lisp_Object spec;
-     struct image_keyword *keywords;
-     int nkeywords;
-     Lisp_Object type;
-{
-  int i;
-  Lisp_Object plist;
-
-  if (!IMAGEP (spec))
-    return 0;
-
-  plist = XCDR (spec);
-  while (CONSP (plist))
-    {
-      Lisp_Object key, value;
-
-      /* First element of a pair must be a symbol.  */
-      key = XCAR (plist);
-      plist = XCDR (plist);
-      if (!SYMBOLP (key))
-	return 0;
-
-      /* There must follow a value.  */
-      if (!CONSP (plist))
-	return 0;
-      value = XCAR (plist);
-      plist = XCDR (plist);
-
-      /* Find key in KEYWORDS.  Error if not found.  */
-      for (i = 0; i < nkeywords; ++i)
-	if (strcmp (keywords[i].name, SDATA (SYMBOL_NAME (key))) == 0)
-	  break;
-
-      if (i == nkeywords)
-        continue;
-
-      /* Record that we recognized the keyword.  If a keywords
-	 was found more than once, it's an error.  */
-      keywords[i].value = value;
-      ++keywords[i].count;
-
-      if (keywords[i].count > 1)
-	return 0;
-
-      /* Check type of value against allowed type.  */
-      switch (keywords[i].type)
-	{
-	case IMAGE_STRING_VALUE:
-	  if (!STRINGP (value))
-	    return 0;
-	  break;
-
-	case IMAGE_STRING_OR_NIL_VALUE:
-	  if (!STRINGP (value) && !NILP (value))
-	    return 0;
-	  break;
-
-	case IMAGE_SYMBOL_VALUE:
-	  if (!SYMBOLP (value))
-	    return 0;
-	  break;
-
-	case IMAGE_POSITIVE_INTEGER_VALUE:
-	  if (!INTEGERP (value) || XINT (value) <= 0)
-	    return 0;
-	  break;
-
-	case IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR:
-	  if (INTEGERP (value) && XINT (value) >= 0)
-	    break;
-	  if (CONSP (value)
-	      && INTEGERP (XCAR (value)) && INTEGERP (XCDR (value))
-	      && XINT (XCAR (value)) >= 0 && XINT (XCDR (value)) >= 0)
-	    break;
-	  return 0;
-
-        case IMAGE_ASCENT_VALUE:
-	  if (SYMBOLP (value) && EQ (value, Qcenter))
-	    break;
-	  else if (INTEGERP (value)
-		   && XINT (value) >= 0
-		   && XINT (value) <= 100)
-	    break;
-	  return 0;
-
-	case IMAGE_NON_NEGATIVE_INTEGER_VALUE:
-	  if (!INTEGERP (value) || XINT (value) < 0)
-	    return 0;
-	  break;
-
-	case IMAGE_DONT_CHECK_VALUE_TYPE:
-	  break;
-
-	case IMAGE_FUNCTION_VALUE:
-	  value = indirect_function (value);
-	  if (SUBRP (value)
-	      || COMPILEDP (value)
-	      || (CONSP (value) && EQ (XCAR (value), Qlambda)))
-	    break;
-	  return 0;
-
-	case IMAGE_NUMBER_VALUE:
-	  if (!INTEGERP (value) && !FLOATP (value))
-	    return 0;
-	  break;
-
-	case IMAGE_INTEGER_VALUE:
-	  if (!INTEGERP (value))
-	    return 0;
-	  break;
-
-	case IMAGE_BOOL_VALUE:
-	  if (!NILP (value) && !EQ (value, Qt))
-	    return 0;
-	  break;
-
-	default:
-	  abort ();
-	  break;
-	}
-
-      if (EQ (key, QCtype) && !EQ (type, value))
-	return 0;
-    }
-
-  /* Check that all mandatory fields are present.  */
-  for (i = 0; i < nkeywords; ++i)
-    if (keywords[i].mandatory_p && keywords[i].count == 0)
-      return 0;
-
-  return NILP (plist);
-}
-
-
-/* Return the value of KEY in image specification SPEC.  Value is nil
-   if KEY is not present in SPEC.  if FOUND is not null, set *FOUND
-   to 1 if KEY was found in SPEC, set it to 0 otherwise.  */
-
-static Lisp_Object
-image_spec_value (spec, key, found)
-     Lisp_Object spec, key;
-     int *found;
-{
-  Lisp_Object tail;
-
-  xassert (valid_image_p (spec));
-
-  for (tail = XCDR (spec);
-       CONSP (tail) && CONSP (XCDR (tail));
-       tail = XCDR (XCDR (tail)))
-    {
-      if (EQ (XCAR (tail), key))
-	{
-	  if (found)
-	    *found = 1;
-	  return XCAR (XCDR (tail));
-	}
-    }
-
-  if (found)
-    *found = 0;
-  return Qnil;
-}
-
-
-DEFUN ("image-size", Fimage_size, Simage_size, 1, 3, 0,
-       doc: /* Return the size of image SPEC as pair (WIDTH . HEIGHT).
-PIXELS non-nil means return the size in pixels, otherwise return the
-size in canonical character units.
-FRAME is the frame on which the image will be displayed.  FRAME nil
-or omitted means use the selected frame.  */)
-     (spec, pixels, frame)
-     Lisp_Object spec, pixels, frame;
-{
-  Lisp_Object size;
-
-  size = Qnil;
-  if (valid_image_p (spec))
-    {
-      struct frame *f = check_x_frame (frame);
-      int id = lookup_image (f, spec);
-      struct image *img = IMAGE_FROM_ID (f, id);
-      int width = img->width + 2 * img->hmargin;
-      int height = img->height + 2 * img->vmargin;
-
-      if (NILP (pixels))
-	size = Fcons (make_float ((double) width / FRAME_COLUMN_WIDTH (f)),
-		      make_float ((double) height / FRAME_LINE_HEIGHT (f)));
-      else
-	size = Fcons (make_number (width), make_number (height));
-    }
-  else
-    error ("Invalid image specification");
-
-  return size;
-}
-
-
-DEFUN ("image-mask-p", Fimage_mask_p, Simage_mask_p, 1, 2, 0,
-       doc: /* Return t if image SPEC has a mask bitmap.
-FRAME is the frame on which the image will be displayed.  FRAME nil
-or omitted means use the selected frame.  */)
-     (spec, frame)
-     Lisp_Object spec, frame;
-{
-  Lisp_Object mask;
-
-  mask = Qnil;
-  if (valid_image_p (spec))
-    {
-      struct frame *f = check_x_frame (frame);
-      int id = lookup_image (f, spec);
-      struct image *img = IMAGE_FROM_ID (f, id);
-      if (img->mask)
-	mask = Qt;
-    }
-  else
-    error ("Invalid image specification");
-
-  return mask;
-}
-
-
-/***********************************************************************
-		 Image type independent image structures
- ***********************************************************************/
-
-static struct image *make_image P_ ((Lisp_Object spec, unsigned hash));
-static void free_image P_ ((struct frame *f, struct image *img));
-static void x_destroy_x_image P_ ((XImage *));
-
-
-/* Allocate and return a new image structure for image specification
-   SPEC.  SPEC has a hash value of HASH.  */
-
-static struct image *
-make_image (spec, hash)
-     Lisp_Object spec;
-     unsigned hash;
-{
-  struct image *img = (struct image *) xmalloc (sizeof *img);
-
-  xassert (valid_image_p (spec));
-  bzero (img, sizeof *img);
-  img->type = lookup_image_type (image_spec_value (spec, QCtype, NULL));
-  xassert (img->type != NULL);
-  img->spec = spec;
-  img->data.lisp_val = Qnil;
-  img->ascent = DEFAULT_IMAGE_ASCENT;
-  img->hash = hash;
-  return img;
-}
-
-
-/* Free image IMG which was used on frame F, including its resources.  */
-
-static void
-free_image (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  if (img)
-    {
-      struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
-
-      /* Remove IMG from the hash table of its cache.  */
-      if (img->prev)
-	img->prev->next = img->next;
-      else
-	c->buckets[img->hash % IMAGE_CACHE_BUCKETS_SIZE] = img->next;
-
-      if (img->next)
-	img->next->prev = img->prev;
-
-      c->images[img->id] = NULL;
-
-      /* Free resources, then free IMG.  */
-      img->type->free (f, img);
-      xfree (img);
-    }
-}
-
-
-/* Prepare image IMG for display on frame F.  Must be called before
-   drawing an image.  */
-
-void
-prepare_image_for_display (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  EMACS_TIME t;
-
-  /* We're about to display IMG, so set its timestamp to `now'.  */
-  EMACS_GET_TIME (t);
-  img->timestamp = EMACS_SECS (t);
-
-  /* If IMG doesn't have a pixmap yet, load it now, using the image
-     type dependent loader function.  */
-  if (img->pixmap == 0 && !img->load_failed_p)
-    img->load_failed_p = img->type->load (f, img) == 0;
-}
-
-
-/* Value is the number of pixels for the ascent of image IMG when
-   drawn in face FACE.  */
-
-int
-image_ascent (img, face)
-     struct image *img;
-     struct face *face;
-{
-  int height = img->height + img->vmargin;
-  int ascent;
-
-  if (img->ascent == CENTERED_IMAGE_ASCENT)
-    {
-      if (face->font)
-	ascent = height / 2 - (FONT_DESCENT(face->font)
-                               - FONT_BASE(face->font)) / 2;
-      else
-	ascent = height / 2;
-    }
-  else
-    ascent = (int) (height * img->ascent / 100.0);
-
-  return ascent;
-}
-
-
-
-/* Image background colors.  */
-
-/* Find the "best" corner color of a bitmap.  XIMG is assumed to a device
-   context with the bitmap selected.  */
-static COLORREF
-four_corners_best (img_dc, width, height)
-     HDC img_dc;
-     unsigned long width, height;
-{
-  COLORREF corners[4], best;
-  int i, best_count;
-
-  /* Get the colors at the corners of img_dc.  */
-  corners[0] = GetPixel (img_dc, 0, 0);
-  corners[1] = GetPixel (img_dc, width - 1, 0);
-  corners[2] = GetPixel (img_dc, width - 1, height - 1);
-  corners[3] = GetPixel (img_dc, 0, height - 1);
-
-  /* Choose the most frequently found color as background.  */
-  for (i = best_count = 0; i < 4; ++i)
-    {
-      int j, n;
-
-      for (j = n = 0; j < 4; ++j)
-	if (corners[i] == corners[j])
-	  ++n;
-
-      if (n > best_count)
-	best = corners[i], best_count = n;
-    }
-
-  return best;
-}
-
-/* Return the `background' field of IMG.  If IMG doesn't have one yet,
-   it is guessed heuristically.  If non-zero, IMG_DC is an existing
-   device context with the image selected to use for the heuristic.  */
-
-unsigned long
-image_background (img, f, img_dc)
-     struct image *img;
-     struct frame *f;
-     HDC img_dc;
-{
-  if (! img->background_valid)
-    /* IMG doesn't have a background yet, try to guess a reasonable value.  */
-    {
-      int free_ximg = !img_dc;
-      HGDIOBJ prev;
-
-      if (free_ximg)
-	{
-	  HDC frame_dc = get_frame_dc (f);
-	  img_dc = CreateCompatibleDC (frame_dc);
-	  release_frame_dc (f, frame_dc);
-
-	  prev = SelectObject (img_dc, img->pixmap);
-	}
-
-      img->background = four_corners_best (img_dc, img->width, img->height);
-
-      if (free_ximg)
-	{
-	  SelectObject (img_dc, prev);
-	  DeleteDC (img_dc);
-	}
-
-      img->background_valid = 1;
-    }
-
-  return img->background;
-}
-
-/* Return the `background_transparent' field of IMG.  If IMG doesn't
-   have one yet, it is guessed heuristically.  If non-zero, MASK is an
-   existing XImage object to use for the heuristic.  */
-
-int
-image_background_transparent (img, f, mask)
-     struct image *img;
-     struct frame *f;
-     HDC mask;
-{
-  if (! img->background_transparent_valid)
-    /* IMG doesn't have a background yet, try to guess a reasonable value.  */
-    {
-      if (img->mask)
-	{
-	  int free_mask = !mask;
-	  HGDIOBJ prev;
-
-	  if (free_mask)
-	    {
-	      HDC frame_dc = get_frame_dc (f);
-	      mask = CreateCompatibleDC (frame_dc);
-	      release_frame_dc (f, frame_dc);
-
-	      prev = SelectObject (mask, img->mask);
-	    }
-
-	  img->background_transparent
-	    = !four_corners_best (mask, img->width, img->height);
-
-	  if (free_mask)
-	    {
-	      SelectObject (mask, prev);
-	      DeleteDC (mask);
-	    }
-	}
-      else
-	img->background_transparent = 0;
-
-      img->background_transparent_valid = 1;
-    }
-
-  return img->background_transparent;
-}
-
-
-/***********************************************************************
-		  Helper functions for X image types
- ***********************************************************************/
-
-static void x_clear_image_1 P_ ((struct frame *, struct image *, int,
-				 int, int));
-static void x_clear_image P_ ((struct frame *f, struct image *img));
-static unsigned long x_alloc_image_color P_ ((struct frame *f,
-					      struct image *img,
-					      Lisp_Object color_name,
-					      unsigned long dflt));
-
-
-/* Clear X resources of image IMG on frame F.  PIXMAP_P non-zero means
-   free the pixmap if any.  MASK_P non-zero means clear the mask
-   pixmap if any.  COLORS_P non-zero means free colors allocated for
-   the image, if any.  */
-
-static void
-x_clear_image_1 (f, img, pixmap_p, mask_p, colors_p)
-     struct frame *f;
-     struct image *img;
-     int pixmap_p, mask_p, colors_p;
-{
-  if (pixmap_p && img->pixmap)
-    {
-      DeleteObject (img->pixmap);
-      img->pixmap = NULL;
-      img->background_valid = 0;
-    }
-
-  if (mask_p && img->mask)
-    {
-      DeleteObject (img->mask);
-      img->mask = NULL;
-      img->background_transparent_valid = 0;
-    }
-
-  if (colors_p && img->ncolors)
-    {
-#if 0  /* TODO: color table support.  */
-      x_free_colors (f, img->colors, img->ncolors);
-#endif
-      xfree (img->colors);
-      img->colors = NULL;
-      img->ncolors = 0;
-    }
-}
-
-/* Free X resources of image IMG which is used on frame F.  */
-
-static void
-x_clear_image (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  if (img->pixmap)
-    {
-      BLOCK_INPUT;
-      DeleteObject (img->pixmap);
-      img->pixmap = 0;
-      UNBLOCK_INPUT;
-    }
-
-  if (img->ncolors)
-    {
-#if 0 /* TODO: color table support  */
-
-      int class = FRAME_W32_DISPLAY_INFO (f)->visual->class;
-
-      /* If display has an immutable color map, freeing colors is not
-	 necessary and some servers don't allow it.  So don't do it.  */
-      if (class != StaticColor
-	  && class != StaticGray
-	  && class != TrueColor)
-	{
-	  Colormap cmap;
-	  BLOCK_INPUT;
-	  cmap = DefaultColormapOfScreen (FRAME_W32_DISPLAY_INFO (f)->screen);
-	  XFreeColors (FRAME_W32_DISPLAY (f), cmap, img->colors,
-		       img->ncolors, 0);
-	  UNBLOCK_INPUT;
-	}
-#endif
-
-      xfree (img->colors);
-      img->colors = NULL;
-      img->ncolors = 0;
-    }
-}
-
-
-/* Allocate color COLOR_NAME for image IMG on frame F.  If color
-   cannot be allocated, use DFLT.  Add a newly allocated color to
-   IMG->colors, so that it can be freed again.  Value is the pixel
-   color.  */
-
-static unsigned long
-x_alloc_image_color (f, img, color_name, dflt)
-     struct frame *f;
-     struct image *img;
-     Lisp_Object color_name;
-     unsigned long dflt;
-{
-  XColor color;
-  unsigned long result;
-
-  xassert (STRINGP (color_name));
-
-  if (w32_defined_color (f, SDATA (color_name), &color, 1))
-    {
-      /* This isn't called frequently so we get away with simply
-	 reallocating the color vector to the needed size, here.  */
-      ++img->ncolors;
-      img->colors =
-	(unsigned long *) xrealloc (img->colors,
-				    img->ncolors * sizeof *img->colors);
-      img->colors[img->ncolors - 1] = color.pixel;
-      result = color.pixel;
-    }
-  else
-    result = dflt;
-  return result;
-}
-
-
-
-/***********************************************************************
-			     Image Cache
- ***********************************************************************/
-
-static void cache_image P_ ((struct frame *f, struct image *img));
-static void postprocess_image P_ ((struct frame *, struct image *));
-static void x_disable_image P_ ((struct frame *, struct image *));
-
-
-/* Return a new, initialized image cache that is allocated from the
-   heap.  Call free_image_cache to free an image cache.  */
-
-struct image_cache *
-make_image_cache ()
-{
-  struct image_cache *c = (struct image_cache *) xmalloc (sizeof *c);
-  int size;
-
-  bzero (c, sizeof *c);
-  c->size = 50;
-  c->images = (struct image **) xmalloc (c->size * sizeof *c->images);
-  size = IMAGE_CACHE_BUCKETS_SIZE * sizeof *c->buckets;
-  c->buckets = (struct image **) xmalloc (size);
-  bzero (c->buckets, size);
-  return c;
-}
-
-
-/* Free image cache of frame F.  Be aware that X frames share images
-   caches.  */
-
-void
-free_image_cache (f)
-     struct frame *f;
-{
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
-  if (c)
-    {
-      int i;
-
-      /* Cache should not be referenced by any frame when freed.  */
-      xassert (c->refcount == 0);
-
-      for (i = 0; i < c->used; ++i)
-	free_image (f, c->images[i]);
-      xfree (c->images);
-      xfree (c);
-      xfree (c->buckets);
-      FRAME_X_IMAGE_CACHE (f) = NULL;
-    }
-}
-
-
-/* Clear image cache of frame F.  FORCE_P non-zero means free all
-   images.  FORCE_P zero means clear only images that haven't been
-   displayed for some time.  Should be called from time to time to
-   reduce the number of loaded images.  If image-eviction-seconds is
-   non-nil, this frees images in the cache which weren't displayed for
-   at least that many seconds.  */
-
-void
-clear_image_cache (f, force_p)
-     struct frame *f;
-     int force_p;
-{
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
-
-  if (c && INTEGERP (Vimage_cache_eviction_delay))
-    {
-      EMACS_TIME t;
-      unsigned long old;
-      int i, nfreed;
-
-      EMACS_GET_TIME (t);
-      old = EMACS_SECS (t) - XFASTINT (Vimage_cache_eviction_delay);
-
-      /* Block input so that we won't be interrupted by a SIGIO
-	 while being in an inconsistent state.  */
-      BLOCK_INPUT;
-
-      for (i = nfreed = 0; i < c->used; ++i)
-	{
-	  struct image *img = c->images[i];
-	  if (img != NULL
-	      && (force_p || (img->timestamp < old)))
-	    {
-	      free_image (f, img);
-	      ++nfreed;
-	    }
-	}
-
-      /* We may be clearing the image cache because, for example,
-	 Emacs was iconified for a longer period of time.  In that
-	 case, current matrices may still contain references to
-	 images freed above.  So, clear these matrices.  */
-      if (nfreed)
-	{
-	  Lisp_Object tail, frame;
-
-	  FOR_EACH_FRAME (tail, frame)
-	    {
-	      struct frame *f = XFRAME (frame);
-	      if (FRAME_W32_P (f)
-		  && FRAME_X_IMAGE_CACHE (f) == c)
-		clear_current_matrices (f);
-	    }
-
-	  ++windows_or_buffers_changed;
-	}
-
-      UNBLOCK_INPUT;
-    }
-}
-
-
-DEFUN ("clear-image-cache", Fclear_image_cache, Sclear_image_cache,
-       0, 1, 0,
-       doc: /* Clear the image cache of FRAME.
-FRAME nil or omitted means use the selected frame.
-FRAME t means clear the image caches of all frames.  */)
-  (frame)
-     Lisp_Object frame;
-{
-  if (EQ (frame, Qt))
-    {
-      Lisp_Object tail;
-
-      FOR_EACH_FRAME (tail, frame)
-	if (FRAME_W32_P (XFRAME (frame)))
-	  clear_image_cache (XFRAME (frame), 1);
-    }
-  else
-    clear_image_cache (check_x_frame (frame), 1);
-
-  return Qnil;
-}
-
-
-/* Compute masks and transform image IMG on frame F, as specified
-   by the image's specification,  */
-
-static void
-postprocess_image (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  /* Manipulation of the image's mask.  */
-  if (img->pixmap)
-    {
-      Lisp_Object conversion, spec;
-      Lisp_Object mask;
-
-      spec = img->spec;
-
-      /* `:heuristic-mask t'
-	 `:mask heuristic'
-	 means build a mask heuristically.
-	 `:heuristic-mask (R G B)'
-	 `:mask (heuristic (R G B))'
-	 means build a mask from color (R G B) in the
-	 image.
-	 `:mask nil'
-	 means remove a mask, if any.  */
-
-      mask = image_spec_value (spec, QCheuristic_mask, NULL);
-      if (!NILP (mask))
-	x_build_heuristic_mask (f, img, mask);
-      else
-	{
-	  int found_p;
-
-	  mask = image_spec_value (spec, QCmask, &found_p);
-
-	  if (EQ (mask, Qheuristic))
-	    x_build_heuristic_mask (f, img, Qt);
-	  else if (CONSP (mask)
-		   && EQ (XCAR (mask), Qheuristic))
-	    {
-	      if (CONSP (XCDR (mask)))
-		x_build_heuristic_mask (f, img, XCAR (XCDR (mask)));
-	      else
-		x_build_heuristic_mask (f, img, XCDR (mask));
-	    }
-	  else if (NILP (mask) && found_p && img->mask)
-	    {
-	      DeleteObject (img->mask);
-	      img->mask = NULL;
-	    }
-	}
-
-
-      /* Should we apply an image transformation algorithm?  */
-      conversion = image_spec_value (spec, QCconversion, NULL);
-      if (EQ (conversion, Qdisabled))
-	x_disable_image (f, img);
-      else if (EQ (conversion, Qlaplace))
-	x_laplace (f, img);
-      else if (EQ (conversion, Qemboss))
-	x_emboss (f, img);
-      else if (CONSP (conversion)
-	       && EQ (XCAR (conversion), Qedge_detection))
-	{
-	  Lisp_Object tem;
-	  tem = XCDR (conversion);
-	  if (CONSP (tem))
-	    x_edge_detection (f, img,
-			      Fplist_get (tem, QCmatrix),
-			      Fplist_get (tem, QCcolor_adjustment));
-	}
-    }
-}
-
-
-/* Return the id of image with Lisp specification SPEC on frame F.
-   SPEC must be a valid Lisp image specification (see valid_image_p).  */
-
-int
-lookup_image (f, spec)
-     struct frame *f;
-     Lisp_Object spec;
-{
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
-  struct image *img;
-  int i;
-  unsigned hash;
-  struct gcpro gcpro1;
-  EMACS_TIME now;
-
-  /* F must be a window-system frame, and SPEC must be a valid image
-     specification.  */
-  xassert (FRAME_WINDOW_P (f));
-  xassert (valid_image_p (spec));
-
-  GCPRO1 (spec);
-
-  /* Look up SPEC in the hash table of the image cache.  */
-  hash = sxhash (spec, 0);
-  i = hash % IMAGE_CACHE_BUCKETS_SIZE;
-
-  for (img = c->buckets[i]; img; img = img->next)
-    if (img->hash == hash && !NILP (Fequal (img->spec, spec)))
-      break;
-
-  /* If not found, create a new image and cache it.  */
-  if (img == NULL)
-    {
-      extern Lisp_Object Qpostscript;
-
-      BLOCK_INPUT;
-      img = make_image (spec, hash);
-      cache_image (f, img);
-      img->load_failed_p = img->type->load (f, img) == 0;
-
-      /* If we can't load the image, and we don't have a width and
-	 height, use some arbitrary width and height so that we can
-	 draw a rectangle for it.  */
-      if (img->load_failed_p)
-	{
-	  Lisp_Object value;
-
-	  value = image_spec_value (spec, QCwidth, NULL);
-	  img->width = (INTEGERP (value)
-			? XFASTINT (value) : DEFAULT_IMAGE_WIDTH);
-	  value = image_spec_value (spec, QCheight, NULL);
-	  img->height = (INTEGERP (value)
-			 ? XFASTINT (value) : DEFAULT_IMAGE_HEIGHT);
-	}
-      else
-	{
-	  /* Handle image type independent image attributes
-	     `:ascent ASCENT', `:margin MARGIN', `:relief RELIEF',
-	     `:background COLOR'.  */
-	  Lisp_Object ascent, margin, relief, bg;
-
-	  ascent = image_spec_value (spec, QCascent, NULL);
-	  if (INTEGERP (ascent))
-	    img->ascent = XFASTINT (ascent);
-	  else if (EQ (ascent, Qcenter))
-            img->ascent = CENTERED_IMAGE_ASCENT;
-
-	  margin = image_spec_value (spec, QCmargin, NULL);
-	  if (INTEGERP (margin) && XINT (margin) >= 0)
-	    img->vmargin = img->hmargin = XFASTINT (margin);
-	  else if (CONSP (margin) && INTEGERP (XCAR (margin))
-		   && INTEGERP (XCDR (margin)))
-	    {
-	      if (XINT (XCAR (margin)) > 0)
-		img->hmargin = XFASTINT (XCAR (margin));
-	      if (XINT (XCDR (margin)) > 0)
-		img->vmargin = XFASTINT (XCDR (margin));
-	    }
-
-	  relief = image_spec_value (spec, QCrelief, NULL);
-	  if (INTEGERP (relief))
-	    {
-	      img->relief = XINT (relief);
-	      img->hmargin += abs (img->relief);
-	      img->vmargin += abs (img->relief);
-	    }
-
-	  if (! img->background_valid)
-	    {
-	      bg = image_spec_value (img->spec, QCbackground, NULL);
-	      if (!NILP (bg))
-		{
-		  img->background
-		    = x_alloc_image_color (f, img, bg,
-					   FRAME_BACKGROUND_PIXEL (f));
-		  img->background_valid = 1;
-		}
-	    }
-
-	  /* Do image transformations and compute masks, unless we
-	     don't have the image yet.  */
-	  if (!EQ (*img->type->type, Qpostscript))
-	    postprocess_image (f, img);
-	}
-
-      UNBLOCK_INPUT;
-      xassert (!interrupt_input_blocked);
-    }
-
-  /* We're using IMG, so set its timestamp to `now'.  */
-  EMACS_GET_TIME (now);
-  img->timestamp = EMACS_SECS (now);
-
-  UNGCPRO;
-
-  /* Value is the image id.  */
-  return img->id;
-}
-
-
-/* Cache image IMG in the image cache of frame F.  */
-
-static void
-cache_image (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
-  int i;
-
-  /* Find a free slot in c->images.  */
-  for (i = 0; i < c->used; ++i)
-    if (c->images[i] == NULL)
-      break;
-
-  /* If no free slot found, maybe enlarge c->images.  */
-  if (i == c->used && c->used == c->size)
-    {
-      c->size *= 2;
-      c->images = (struct image **) xrealloc (c->images,
-					      c->size * sizeof *c->images);
-    }
-
-  /* Add IMG to c->images, and assign IMG an id.  */
-  c->images[i] = img;
-  img->id = i;
-  if (i == c->used)
-    ++c->used;
-
-  /* Add IMG to the cache's hash table.  */
-  i = img->hash % IMAGE_CACHE_BUCKETS_SIZE;
-  img->next = c->buckets[i];
-  if (img->next)
-    img->next->prev = img;
-  img->prev = NULL;
-  c->buckets[i] = img;
-}
-
-
-/* Call FN on every image in the image cache of frame F.  Used to mark
-   Lisp Objects in the image cache.  */
-
-void
-forall_images_in_image_cache (f, fn)
-     struct frame *f;
-     void (*fn) P_ ((struct image *img));
-{
-  if (FRAME_LIVE_P (f) && FRAME_W32_P (f))
-    {
-      struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
-      if (c)
-	{
-	  int i;
-	  for (i = 0; i < c->used; ++i)
-	    if (c->images[i])
-	      fn (c->images[i]);
-	}
-    }
-}
-
-
-
-/***********************************************************************
-			    W32 support code
- ***********************************************************************/
-
-/* Macro for defining functions that will be loaded from image DLLs.  */
-#define DEF_IMGLIB_FN(func) FARPROC fn_##func
-
-/* Macro for loading those image functions from the library.  */
-#define LOAD_IMGLIB_FN(lib,func) {					\
-    fn_##func = (void *) GetProcAddress (lib, #func);			\
-    if (!fn_##func) return 0;						\
-  }
-
-static int x_create_x_image_and_pixmap P_ ((struct frame *, int, int, int,
-                                            XImage **, Pixmap *));
-static void x_put_x_image P_ ((struct frame *, XImage *, Pixmap, int, int));
-
-
-/* Create an XImage and a pixmap of size WIDTH x HEIGHT for use on
-   frame F.  Set *XIMG and *PIXMAP to the XImage and Pixmap created.
-   Set (*XIMG)->data to a raster of WIDTH x HEIGHT pixels allocated
-   via xmalloc.  DEPTH of zero signifies a 24 bit image, otherwise
-   DEPTH should indicate the bit depth of the image.  Print error
-   messages via image_error if an error occurs.  Value is non-zero if
-   successful.  */
-
-static int
-x_create_x_image_and_pixmap (f, width, height, depth, ximg, pixmap)
-     struct frame *f;
-     int width, height, depth;
-     XImage **ximg;
-     Pixmap *pixmap;
-{
-  BITMAPINFOHEADER *header;
-  HDC hdc;
-  int scanline_width_bits;
-  int remainder;
-  int palette_colors = 0;
-
-  if (depth == 0)
-    depth = 24;
-
-  if (depth != 1 && depth != 4 && depth != 8
-      && depth != 16 && depth != 24 && depth != 32)
-    {
-      image_error ("Invalid image bit depth specified", Qnil, Qnil);
-      return 0;
-    }
-
-  scanline_width_bits = width * depth;
-  remainder = scanline_width_bits % 32;
-
-  if (remainder)
-    scanline_width_bits += 32 - remainder;
-
-  /* Bitmaps with a depth less than 16 need a palette.  */
-  /* BITMAPINFO structure already contains the first RGBQUAD.  */
-  if (depth < 16)
-    palette_colors = 1 << depth - 1;
-
-  *ximg = xmalloc (sizeof (XImage) + palette_colors * sizeof (RGBQUAD));
-  if (*ximg == NULL)
-    {
-      image_error ("Unable to allocate memory for XImage", Qnil, Qnil);
-      return 0;
-    }
-
-  header = &((*ximg)->info.bmiHeader);
-  bzero (&((*ximg)->info), sizeof (BITMAPINFO));
-  header->biSize = sizeof (*header);
-  header->biWidth = width;
-  header->biHeight = -height;  /* negative indicates a top-down bitmap.  */
-  header->biPlanes = 1;
-  header->biBitCount = depth;
-  header->biCompression = BI_RGB;
-  header->biClrUsed = palette_colors;
-
-  /* TODO: fill in palette.  */
-  if (depth == 1)
-    {
-      (*ximg)->info.bmiColors[0].rgbBlue = 0;
-      (*ximg)->info.bmiColors[0].rgbGreen = 0;
-      (*ximg)->info.bmiColors[0].rgbRed = 0;
-      (*ximg)->info.bmiColors[0].rgbReserved = 0;
-      (*ximg)->info.bmiColors[1].rgbBlue = 255;
-      (*ximg)->info.bmiColors[1].rgbGreen = 255;
-      (*ximg)->info.bmiColors[1].rgbRed = 255;
-      (*ximg)->info.bmiColors[1].rgbReserved = 0;
-    }
-
-  hdc = get_frame_dc (f);
-
-  /* Create a DIBSection and raster array for the bitmap,
-     and store its handle in *pixmap.  */
-  *pixmap = CreateDIBSection (hdc, &((*ximg)->info),
-			      (depth < 16) ? DIB_PAL_COLORS : DIB_RGB_COLORS,
-			      &((*ximg)->data), NULL, 0);
-
-  /* Realize display palette and garbage all frames. */
-  release_frame_dc (f, hdc);
-
-  if (*pixmap == NULL)
-    {
-      DWORD err = GetLastError();
-      Lisp_Object errcode;
-      /* All system errors are < 10000, so the following is safe.  */
-      XSETINT (errcode, (int) err);
-      image_error ("Unable to create bitmap, error code %d", errcode, Qnil);
-      x_destroy_x_image (*ximg);
-      return 0;
-    }
-
-  return 1;
-}
-
-
-/* Destroy XImage XIMG.  Free XIMG->data.  */
-
-static void
-x_destroy_x_image (ximg)
-     XImage *ximg;
-{
-  xassert (interrupt_input_blocked);
-  if (ximg)
-    {
-      /* Data will be freed by DestroyObject.  */
-      ximg->data = NULL;
-      xfree (ximg);
-    }
-}
-
-
-/* Put XImage XIMG into pixmap PIXMAP on frame F.  WIDTH and HEIGHT
-   are width and height of both the image and pixmap.  */
-
-static void
-x_put_x_image (f, ximg, pixmap, width, height)
-     struct frame *f;
-     XImage *ximg;
-     Pixmap pixmap;
-     int width, height;
-{
-#if 0  /* I don't think this is necessary looking at where it is used.  */
-  HDC hdc = get_frame_dc (f);
-  SetDIBits (hdc, pixmap, 0, height, ximg->data, &(ximg->info), DIB_RGB_COLORS);
-  release_frame_dc (f, hdc);
-#endif
-}
-
-
-/***********************************************************************
-			      File Handling
- ***********************************************************************/
-
-static Lisp_Object x_find_image_file P_ ((Lisp_Object));
-static unsigned char *slurp_file P_ ((char *, int *));
-
-
-/* Find image file FILE.  Look in data-directory, then
-   x-bitmap-file-path.  Value is the full name of the file found, or
-   nil if not found.  */
-
-static Lisp_Object
-x_find_image_file (file)
-     Lisp_Object file;
-{
-  Lisp_Object file_found, search_path;
-  struct gcpro gcpro1, gcpro2;
-  int fd;
-
-  file_found = Qnil;
-  search_path = Fcons (Vdata_directory, Vx_bitmap_file_path);
-  GCPRO2 (file_found, search_path);
-
-  /* Try to find FILE in data-directory, then x-bitmap-file-path.  */
-  fd = openp (search_path, file, Qnil, &file_found, Qnil);
-
-  if (fd == -1)
-    file_found = Qnil;
-  else
-    close (fd);
-
-  UNGCPRO;
-  return file_found;
-}
-
-
-/* Read FILE into memory.  Value is a pointer to a buffer allocated
-   with xmalloc holding FILE's contents.  Value is null if an error
-   occurred.  *SIZE is set to the size of the file.  */
-
-static unsigned char *
-slurp_file (file, size)
-     char *file;
-     int *size;
-{
-  FILE *fp = NULL;
-  unsigned char *buf = NULL;
-  struct stat st;
-
-  if (stat (file, &st) == 0
-      && (fp = fopen (file, "rb")) != NULL
-      && (buf = (char *) xmalloc (st.st_size),
-	  fread (buf, 1, st.st_size, fp) == st.st_size))
-    {
-      *size = st.st_size;
-      fclose (fp);
-    }
-  else
-    {
-      if (fp)
-	fclose (fp);
-      if (buf)
-	{
-	  xfree (buf);
-	  buf = NULL;
-	}
-    }
-
-  return buf;
-}
-
-
-
-/***********************************************************************
-			      XBM images
- ***********************************************************************/
-
-static int xbm_scan P_ ((unsigned char **, unsigned char *, char *, int *));
-static int xbm_load P_ ((struct frame *f, struct image *img));
-static int xbm_load_image P_ ((struct frame *f, struct image *img,
-			       unsigned char *, unsigned char *));
-static int xbm_image_p P_ ((Lisp_Object object));
-static int xbm_read_bitmap_data P_ ((unsigned char *, unsigned char *,
-				     int *, int *, unsigned char **));
-static int xbm_file_p P_ ((Lisp_Object));
-
-
-/* Indices of image specification fields in xbm_format, below.  */
-
-enum xbm_keyword_index
-{
-  XBM_TYPE,
-  XBM_FILE,
-  XBM_WIDTH,
-  XBM_HEIGHT,
-  XBM_DATA,
-  XBM_FOREGROUND,
-  XBM_BACKGROUND,
-  XBM_ASCENT,
-  XBM_MARGIN,
-  XBM_RELIEF,
-  XBM_ALGORITHM,
-  XBM_HEURISTIC_MASK,
-  XBM_MASK,
-  XBM_LAST
-};
-
-/* Vector of image_keyword structures describing the format
-   of valid XBM image specifications.  */
-
-static struct image_keyword xbm_format[XBM_LAST] =
-{
-  {":type",		IMAGE_SYMBOL_VALUE,			1},
-  {":file",		IMAGE_STRING_VALUE,			0},
-  {":width",		IMAGE_POSITIVE_INTEGER_VALUE,		0},
-  {":height",		IMAGE_POSITIVE_INTEGER_VALUE,		0},
-  {":data",		IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":foreground",	IMAGE_STRING_OR_NIL_VALUE,		0},
-  {":background",	IMAGE_STRING_OR_NIL_VALUE,		0},
-  {":ascent",		IMAGE_ASCENT_VALUE,			0},
-  {":margin",		IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,	0},
-  {":relief",		IMAGE_INTEGER_VALUE,			0},
-  {":conversion",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":heuristic-mask",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":mask",		IMAGE_DONT_CHECK_VALUE_TYPE,		0}
-};
-
-/* Structure describing the image type XBM.  */
-
-static struct image_type xbm_type =
-{
-  &Qxbm,
-  xbm_image_p,
-  xbm_load,
-  x_clear_image,
-  NULL
-};
-
-/* Tokens returned from xbm_scan.  */
-
-enum xbm_token
-{
-  XBM_TK_IDENT = 256,
-  XBM_TK_NUMBER
-};
-
-
-/* Return non-zero if OBJECT is a valid XBM-type image specification.
-   A valid specification is a list starting with the symbol `image'
-   The rest of the list is a property list which must contain an
-   entry `:type xbm..
-
-   If the specification specifies a file to load, it must contain
-   an entry `:file FILENAME' where FILENAME is a string.
-
-   If the specification is for a bitmap loaded from memory it must
-   contain `:width WIDTH', `:height HEIGHT', and `:data DATA', where
-   WIDTH and HEIGHT are integers > 0.  DATA may be:
-
-   1. a string large enough to hold the bitmap data, i.e. it must
-   have a size >= (WIDTH + 7) / 8 * HEIGHT
-
-   2. a bool-vector of size >= WIDTH * HEIGHT
-
-   3. a vector of strings or bool-vectors, one for each line of the
-   bitmap.
-
-   4. A string containing an in-memory XBM file.  WIDTH and HEIGHT
-   may not be specified in this case because they are defined in the
-   XBM file.
-
-   Both the file and data forms may contain the additional entries
-   `:background COLOR' and `:foreground COLOR'.  If not present,
-   foreground and background of the frame on which the image is
-   displayed is used.  */
-
-static int
-xbm_image_p (object)
-     Lisp_Object object;
-{
-  struct image_keyword kw[XBM_LAST];
-
-  bcopy (xbm_format, kw, sizeof kw);
-  if (!parse_image_spec (object, kw, XBM_LAST, Qxbm))
-    return 0;
-
-  xassert (EQ (kw[XBM_TYPE].value, Qxbm));
-
-  if (kw[XBM_FILE].count)
-    {
-      if (kw[XBM_WIDTH].count || kw[XBM_HEIGHT].count || kw[XBM_DATA].count)
-	return 0;
-    }
-  else if (kw[XBM_DATA].count && xbm_file_p (kw[XBM_DATA].value))
-    {
-      /* In-memory XBM file.  */
-      if (kw[XBM_WIDTH].count || kw[XBM_HEIGHT].count || kw[XBM_FILE].count)
-	return 0;
-    }
-  else
-    {
-      Lisp_Object data;
-      int width, height;
-
-      /* Entries for `:width', `:height' and `:data' must be present.  */
-      if (!kw[XBM_WIDTH].count
-	  || !kw[XBM_HEIGHT].count
-	  || !kw[XBM_DATA].count)
-	return 0;
-
-      data = kw[XBM_DATA].value;
-      width = XFASTINT (kw[XBM_WIDTH].value);
-      height = XFASTINT (kw[XBM_HEIGHT].value);
-
-      /* Check type of data, and width and height against contents of
-	 data.  */
-      if (VECTORP (data))
-	{
-	  int i;
-
-	  /* Number of elements of the vector must be >= height.  */
-	  if (XVECTOR (data)->size < height)
-	    return 0;
-
-	  /* Each string or bool-vector in data must be large enough
-	     for one line of the image.  */
-	  for (i = 0; i < height; ++i)
-	    {
-	      Lisp_Object elt = XVECTOR (data)->contents[i];
-
-	      if (STRINGP (elt))
-		{
-		  if (SCHARS (elt)
-		      < (width + BITS_PER_CHAR - 1) / BITS_PER_CHAR)
-		    return 0;
-		}
-	      else if (BOOL_VECTOR_P (elt))
-		{
-		  if (XBOOL_VECTOR (elt)->size < width)
-		    return 0;
-		}
-	      else
-		return 0;
-	    }
-	}
-      else if (STRINGP (data))
-	{
-	  if (SCHARS (data)
-	      < (width + BITS_PER_CHAR - 1) / BITS_PER_CHAR * height)
-	    return 0;
-	}
-      else if (BOOL_VECTOR_P (data))
-	{
-	  if (XBOOL_VECTOR (data)->size < width * height)
-	    return 0;
-	}
-      else
-	return 0;
-    }
-
-  return 1;
-}
-
-
-/* Scan a bitmap file.  FP is the stream to read from.  Value is
-   either an enumerator from enum xbm_token, or a character for a
-   single-character token, or 0 at end of file.  If scanning an
-   identifier, store the lexeme of the identifier in SVAL.  If
-   scanning a number, store its value in *IVAL.  */
-
-static int
-xbm_scan (s, end, sval, ival)
-     unsigned char **s, *end;
-     char *sval;
-     int *ival;
-{
-  unsigned int c;
-
- loop:
-
-  /* Skip white space.  */
-  while (*s < end && (c = *(*s)++, isspace (c)))
-    ;
-
-  if (*s >= end)
-    c = 0;
-  else if (isdigit (c))
-    {
-      int value = 0, digit;
-
-      if (c == '0' && *s < end)
-	{
-	  c = *(*s)++;
-	  if (c == 'x' || c == 'X')
-	    {
-	      while (*s < end)
-		{
-		  c = *(*s)++;
-		  if (isdigit (c))
-		    digit = c - '0';
-		  else if (c >= 'a' && c <= 'f')
-		    digit = c - 'a' + 10;
-		  else if (c >= 'A' && c <= 'F')
-		    digit = c - 'A' + 10;
-		  else
-		    break;
-		  value = 16 * value + digit;
-		}
-	    }
-	  else if (isdigit (c))
-	    {
-	      value = c - '0';
-	      while (*s < end
-		     && (c = *(*s)++, isdigit (c)))
-		value = 8 * value + c - '0';
-	    }
-	}
-      else
-	{
-	  value = c - '0';
-	  while (*s < end
-		 && (c = *(*s)++, isdigit (c)))
-	    value = 10 * value + c - '0';
-	}
-
-      if (*s < end)
-	*s = *s - 1;
-      *ival = value;
-      c = XBM_TK_NUMBER;
-    }
-  else if (isalpha (c) || c == '_')
-    {
-      *sval++ = c;
-      while (*s < end
-	     && (c = *(*s)++, (isalnum (c) || c == '_')))
-	*sval++ = c;
-      *sval = 0;
-      if (*s < end)
-	*s = *s - 1;
-      c = XBM_TK_IDENT;
-    }
-  else if (c == '/' && **s == '*')
-    {
-      /* C-style comment.  */
-      ++*s;
-      while (**s && (**s != '*' || *(*s + 1) != '/'))
-	++*s;
-      if (**s)
-	{
-	  *s += 2;
-	  goto loop;
-	}
-    }
-
-  return c;
-}
-
-
-/* XBM bits seem to be backward within bytes compared with how
-   Windows does things.  */
-static unsigned char reflect_byte (unsigned char orig)
-{
-  int i;
-  unsigned char reflected = 0x00;
-  for (i = 0; i < 8; i++)
-    {
-      if (orig & (0x01 << i))
-	reflected |= 0x80 >> i;
-    }
-  return reflected;
-}
-
-
-/* Create a Windows bitmap from X bitmap data.  */
-static HBITMAP
-w32_create_pixmap_from_bitmap_data (int width, int height, char *data)
-{
-  int i, j, w1, w2;
-  char *bits, *p;
-  HBITMAP bmp;
-
-  w1 = (width + 7) / 8;         /* nb of 8bits elt in X bitmap */
-  w2 = ((width + 15) / 16) * 2; /* nb of 16bits elt in W32 bitmap */
-  bits = (char *) alloca (height * w2);
-  bzero (bits, height * w2);
-  for (i = 0; i < height; i++)
-    {
-      p = bits + i*w2;
-      for (j = 0; j < w1; j++)
-        *p++ = reflect_byte(*data++);
-    }
-  bmp = CreateBitmap (width, height, 1, 1, bits);
-
-  return bmp;
-}
-
-
-/* Replacement for XReadBitmapFileData which isn't available under old
-   X versions.  CONTENTS is a pointer to a buffer to parse; END is the
-   buffer's end.  Set *WIDTH and *HEIGHT to the width and height of
-   the image.  Return in *DATA the bitmap data allocated with xmalloc.
-   Value is non-zero if successful.  DATA null means just test if
-   CONTENTS looks like an in-memory XBM file.  */
-
-static int
-xbm_read_bitmap_data (contents, end, width, height, data)
-     unsigned char *contents, *end;
-     int *width, *height;
-     unsigned char **data;
-{
-  unsigned char *s = contents;
-  char buffer[BUFSIZ];
-  int padding_p = 0;
-  int v10 = 0;
-  int bytes_per_line, i, nbytes;
-  unsigned char *p;
-  int value;
-  int LA1;
-
-#define match() \
-     LA1 = xbm_scan (&s, end, buffer, &value)
-
-#define expect(TOKEN)		\
-     if (LA1 != (TOKEN)) 	\
-       goto failure;		\
-     else			\
-       match ()
-
-#define expect_ident(IDENT)					\
-     if (LA1 == XBM_TK_IDENT && strcmp (buffer, (IDENT)) == 0)	\
-       match ();						\
-     else							\
-       goto failure
-
-  *width = *height = -1;
-  if (data)
-    *data = NULL;
-  LA1 = xbm_scan (&s, end, buffer, &value);
-
-  /* Parse defines for width, height and hot-spots.  */
-  while (LA1 == '#')
-    {
-      match ();
-      expect_ident ("define");
-      expect (XBM_TK_IDENT);
-
-      if (LA1 == XBM_TK_NUMBER);
-	{
-          char *p = strrchr (buffer, '_');
-	  p = p ? p + 1 : buffer;
-          if (strcmp (p, "width") == 0)
-	    *width = value;
-          else if (strcmp (p, "height") == 0)
-	    *height = value;
-	}
-      expect (XBM_TK_NUMBER);
-    }
-
-  if (*width < 0 || *height < 0)
-    goto failure;
-  else if (data == NULL)
-    goto success;
-
-  /* Parse bits.  Must start with `static'.  */
-  expect_ident ("static");
-  if (LA1 == XBM_TK_IDENT)
-    {
-      if (strcmp (buffer, "unsigned") == 0)
-	{
-	  match ();
-	  expect_ident ("char");
-	}
-      else if (strcmp (buffer, "short") == 0)
-	{
-	  match ();
-	  v10 = 1;
-	  if (*width % 16 && *width % 16 < 9)
-	    padding_p = 1;
-	}
-      else if (strcmp (buffer, "char") == 0)
-	match ();
-      else
-	goto failure;
-    }
-  else
-    goto failure;
-
-  expect (XBM_TK_IDENT);
-  expect ('[');
-  expect (']');
-  expect ('=');
-  expect ('{');
-
-  bytes_per_line = (*width + 7) / 8 + padding_p;
-  nbytes = bytes_per_line * *height;
-  p = *data = (char *) xmalloc (nbytes);
-
-  if (v10)
-    {
-      for (i = 0; i < nbytes; i += 2)
-	{
-	  int val = value;
-	  expect (XBM_TK_NUMBER);
-
-	  *p++ = ~ val;
-	  if (!padding_p || ((i + 2) % bytes_per_line))
-	    *p++ = ~ (value >> 8);
-
-	  if (LA1 == ',' || LA1 == '}')
-	    match ();
-	  else
-	    goto failure;
-	}
-    }
-  else
-    {
-      for (i = 0; i < nbytes; ++i)
-	{
-	  int val = value;
-	  expect (XBM_TK_NUMBER);
-
-	  *p++ = ~ val;
-
-	  if (LA1 == ',' || LA1 == '}')
-	    match ();
-	  else
-	    goto failure;
-	}
-    }
-
- success:
-  return 1;
-
- failure:
-
-  if (data && *data)
-    {
-      xfree (*data);
-      *data = NULL;
-    }
-  return 0;
-
-#undef match
-#undef expect
-#undef expect_ident
-}
-
-static void convert_mono_to_color_image (f, img, foreground, background)
-     struct frame *f;
-     struct image *img;
-     COLORREF foreground, background;
-{
-  HDC hdc, old_img_dc, new_img_dc;
-  HGDIOBJ old_prev, new_prev;
-  HBITMAP new_pixmap;
-
-  hdc = get_frame_dc (f);
-  old_img_dc = CreateCompatibleDC (hdc);
-  new_img_dc = CreateCompatibleDC (hdc);
-  new_pixmap = CreateCompatibleBitmap (hdc, img->width, img->height);
-  release_frame_dc (f, hdc);
-  old_prev = SelectObject (old_img_dc, img->pixmap);
-  new_prev = SelectObject (new_img_dc, new_pixmap);
-  SetTextColor (new_img_dc, foreground);
-  SetBkColor (new_img_dc, background);
-
-  BitBlt (new_img_dc, 0, 0, img->width, img->height, old_img_dc,
-	  0, 0, SRCCOPY);
-
-  SelectObject (old_img_dc, old_prev);
-  SelectObject (new_img_dc, new_prev);
-  DeleteDC (old_img_dc);
-  DeleteDC (new_img_dc);
-  DeleteObject (img->pixmap);
-  if (new_pixmap == 0)
-    fprintf (stderr, "Failed to convert image to color.\n");
-  else
-    img->pixmap = new_pixmap;
-}
-
-/* Load XBM image IMG which will be displayed on frame F from buffer
-   CONTENTS.  END is the end of the buffer. Value is non-zero if
-   successful.  */
-
-static int
-xbm_load_image (f, img, contents, end)
-     struct frame *f;
-     struct image *img;
-     unsigned char *contents, *end;
-{
-  int rc;
-  unsigned char *data;
-  int success_p = 0;
-
-  rc = xbm_read_bitmap_data (contents, end, &img->width, &img->height, &data);
-  if (rc)
-    {
-      unsigned long foreground = FRAME_FOREGROUND_PIXEL (f);
-      unsigned long background = FRAME_BACKGROUND_PIXEL (f);
-      int non_default_colors = 0;
-      Lisp_Object value;
-
-      xassert (img->width > 0 && img->height > 0);
-
-      /* Get foreground and background colors, maybe allocate colors.  */
-      value = image_spec_value (img->spec, QCforeground, NULL);
-      if (!NILP (value))
-	{
-	  foreground = x_alloc_image_color (f, img, value, foreground);
-	  non_default_colors = 1;
-	}
-      value = image_spec_value (img->spec, QCbackground, NULL);
-      if (!NILP (value))
-	{
-	  background = x_alloc_image_color (f, img, value, background);
-	  img->background = background;
-	  img->background_valid = 1;
-	  non_default_colors = 1;
-	}
-      img->pixmap
-	= w32_create_pixmap_from_bitmap_data (img->width, img->height, data);
-
-      /* If colors were specified, transfer the bitmap to a color one.  */
-      if (non_default_colors)
-	convert_mono_to_color_image (f, img, foreground, background);
-
-      xfree (data);
-
-      if (img->pixmap == 0)
-	{
-	  x_clear_image (f, img);
-	  image_error ("Unable to create X pixmap for `%s'", img->spec, Qnil);
-	}
-      else
-	success_p = 1;
-    }
-  else
-    image_error ("Error loading XBM image `%s'", img->spec, Qnil);
-
-  return success_p;
-}
-
-
-/* Value is non-zero if DATA looks like an in-memory XBM file.  */
-
-static int
-xbm_file_p (data)
-     Lisp_Object data;
-{
-  int w, h;
-  return (STRINGP (data)
-	  && xbm_read_bitmap_data (SDATA (data),
-				   (SDATA (data)
-				    + SBYTES (data)),
-				   &w, &h, NULL));
-}
-
-
-/* Fill image IMG which is used on frame F with pixmap data.  Value is
-   non-zero if successful.  */
-
-static int
-xbm_load (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  int success_p = 0;
-  Lisp_Object file_name;
-
-  xassert (xbm_image_p (img->spec));
-
-  /* If IMG->spec specifies a file name, create a non-file spec from it.  */
-  file_name = image_spec_value (img->spec, QCfile, NULL);
-  if (STRINGP (file_name))
-    {
-      Lisp_Object file;
-      unsigned char *contents;
-      int size;
-      struct gcpro gcpro1;
-
-      file = x_find_image_file (file_name);
-      GCPRO1 (file);
-      if (!STRINGP (file))
-	{
-	  image_error ("Cannot find image file `%s'", file_name, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-
-      contents = slurp_file (SDATA (file), &size);
-      if (contents == NULL)
-	{
-	  image_error ("Error loading XBM image `%s'", img->spec, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-
-      success_p = xbm_load_image (f, img, contents, contents + size);
-      UNGCPRO;
-    }
-  else
-    {
-      struct image_keyword fmt[XBM_LAST];
-      Lisp_Object data;
-      unsigned long foreground = FRAME_FOREGROUND_PIXEL (f);
-      unsigned long background = FRAME_BACKGROUND_PIXEL (f);
-      int non_default_colors = 0;
-      char *bits;
-      int parsed_p;
-      int in_memory_file_p = 0;
-
-      /* See if data looks like an in-memory XBM file.  */
-      data = image_spec_value (img->spec, QCdata, NULL);
-      in_memory_file_p = xbm_file_p (data);
-
-      /* Parse the image specification.  */
-      bcopy (xbm_format, fmt, sizeof fmt);
-      parsed_p = parse_image_spec (img->spec, fmt, XBM_LAST, Qxbm);
-      xassert (parsed_p);
-
-      /* Get specified width, and height.  */
-      if (!in_memory_file_p)
-	{
-	  img->width = XFASTINT (fmt[XBM_WIDTH].value);
-	  img->height = XFASTINT (fmt[XBM_HEIGHT].value);
-	  xassert (img->width > 0 && img->height > 0);
-	}
-
-      /* Get foreground and background colors, maybe allocate colors.  */
-      if (fmt[XBM_FOREGROUND].count
-	  && STRINGP (fmt[XBM_FOREGROUND].value))
-	{
-	  foreground = x_alloc_image_color (f, img, fmt[XBM_FOREGROUND].value,
-					    foreground);
-	  non_default_colors = 1;
-	}
-
-      if (fmt[XBM_BACKGROUND].count
-	  && STRINGP (fmt[XBM_BACKGROUND].value))
-	{
-	  background = x_alloc_image_color (f, img, fmt[XBM_BACKGROUND].value,
-					    background);
-	  non_default_colors = 1;
-	}
-
-      if (in_memory_file_p)
-	success_p = xbm_load_image (f, img, SDATA (data),
-				    (SDATA (data)
-				     + SBYTES (data)));
-      else
-	{
-	  if (VECTORP (data))
-	    {
-	      int i;
-	      char *p;
-	      int nbytes = (img->width + BITS_PER_CHAR - 1) / BITS_PER_CHAR;
-
-	      p = bits = (char *) alloca (nbytes * img->height);
-	      for (i = 0; i < img->height; ++i, p += nbytes)
-		{
-		  Lisp_Object line = XVECTOR (data)->contents[i];
-		  if (STRINGP (line))
-		    bcopy (SDATA (line), p, nbytes);
-		  else
-		    bcopy (XBOOL_VECTOR (line)->data, p, nbytes);
-		}
-	    }
-	  else if (STRINGP (data))
-	    bits = SDATA (data);
-	  else
-	    bits = XBOOL_VECTOR (data)->data;
-
-	  /* Create the pixmap.  */
-	  img->pixmap
-	    = w32_create_pixmap_from_bitmap_data (img->width, img->height,
-						  bits);
-
-	  /* If colors were specified, transfer the bitmap to a color one.  */
-	  if (non_default_colors)
-	    convert_mono_to_color_image (f, img, foreground, background);
-
-	  if (img->pixmap)
-	    success_p = 1;
-	  else
-	    {
-	      image_error ("Unable to create pixmap for XBM image `%s'",
-			   img->spec, Qnil);
-	      x_clear_image (f, img);
-	    }
-	}
-    }
-
-  return success_p;
-}
-
-
-
-/***********************************************************************
-			      XPM images
- ***********************************************************************/
-
-#if HAVE_XPM
-
-static int xpm_image_p P_ ((Lisp_Object object));
-static int xpm_load P_ ((struct frame *f, struct image *img));
-static int xpm_valid_color_symbols_p P_ ((Lisp_Object));
-
-/* Indicate to xpm.h that we don't have Xlib.  */
-#define FOR_MSW
-/* simx.h in xpm defines XColor and XImage differently than Emacs.  */
-#define XColor xpm_XColor
-#define XImage xpm_XImage
-#define PIXEL_ALREADY_TYPEDEFED
-#include "X11/xpm.h"
-#undef FOR_MSW
-#undef XColor
-#undef XImage
-#undef PIXEL_ALREADY_TYPEDEFED
-
-/* The symbol `xpm' identifying XPM-format images.  */
-
-Lisp_Object Qxpm;
-
-/* Indices of image specification fields in xpm_format, below.  */
-
-enum xpm_keyword_index
-{
-  XPM_TYPE,
-  XPM_FILE,
-  XPM_DATA,
-  XPM_ASCENT,
-  XPM_MARGIN,
-  XPM_RELIEF,
-  XPM_ALGORITHM,
-  XPM_HEURISTIC_MASK,
-  XPM_MASK,
-  XPM_COLOR_SYMBOLS,
-  XPM_BACKGROUND,
-  XPM_LAST
-};
-
-/* Vector of image_keyword structures describing the format
-   of valid XPM image specifications.  */
-
-static struct image_keyword xpm_format[XPM_LAST] =
-{
-  {":type",		IMAGE_SYMBOL_VALUE,			1},
-  {":file",		IMAGE_STRING_VALUE,			0},
-  {":data",		IMAGE_STRING_VALUE,			0},
-  {":ascent",		IMAGE_ASCENT_VALUE,			0},
-  {":margin",		IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,	0},
-  {":relief",		IMAGE_INTEGER_VALUE,			0},
-  {":conversion",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":heuristic-mask",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":mask",             IMAGE_DONT_CHECK_VALUE_TYPE,            0},
-  {":color-symbols",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":background",       IMAGE_STRING_OR_NIL_VALUE,              0}
-};
-
-/* Structure describing the image type XPM.  */
-
-static struct image_type xpm_type =
-{
-  &Qxpm,
-  xpm_image_p,
-  xpm_load,
-  x_clear_image,
-  NULL
-};
-
-
-/* XPM library details.  */
-
-DEF_IMGLIB_FN (XpmFreeAttributes);
-DEF_IMGLIB_FN (XpmCreateImageFromBuffer);
-DEF_IMGLIB_FN (XpmReadFileToImage);
-DEF_IMGLIB_FN (XImageFree);
-
-
-static int
-init_xpm_functions (library)
-     HMODULE library;
-{
-  LOAD_IMGLIB_FN (library, XpmFreeAttributes);
-  LOAD_IMGLIB_FN (library, XpmCreateImageFromBuffer);
-  LOAD_IMGLIB_FN (library, XpmReadFileToImage);
-  LOAD_IMGLIB_FN (library, XImageFree);
-
-  return 1;
-}
-
-/* Value is non-zero if COLOR_SYMBOLS is a valid color symbols list
-   for XPM images.  Such a list must consist of conses whose car and
-   cdr are strings.  */
-
-static int
-xpm_valid_color_symbols_p (color_symbols)
-     Lisp_Object color_symbols;
-{
-  while (CONSP (color_symbols))
-    {
-      Lisp_Object sym = XCAR (color_symbols);
-      if (!CONSP (sym)
-	  || !STRINGP (XCAR (sym))
-	  || !STRINGP (XCDR (sym)))
-	break;
-      color_symbols = XCDR (color_symbols);
-    }
-
-  return NILP (color_symbols);
-}
-
-
-/* Value is non-zero if OBJECT is a valid XPM image specification.  */
-
-static int
-xpm_image_p (object)
-     Lisp_Object object;
-{
-  struct image_keyword fmt[XPM_LAST];
-  bcopy (xpm_format, fmt, sizeof fmt);
-  return (parse_image_spec (object, fmt, XPM_LAST, Qxpm)
-	  /* Either `:file' or `:data' must be present.  */
-	  && fmt[XPM_FILE].count + fmt[XPM_DATA].count == 1
-	  /* Either no `:color-symbols' or it's a list of conses
-	     whose car and cdr are strings.  */
-	  && (fmt[XPM_COLOR_SYMBOLS].count == 0
-	      || xpm_valid_color_symbols_p (fmt[XPM_COLOR_SYMBOLS].value)));
-}
-
-
-/* Load image IMG which will be displayed on frame F.  Value is
-   non-zero if successful.  */
-
-static int
-xpm_load (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  HDC hdc;
-  int rc;
-  XpmAttributes attrs;
-  Lisp_Object specified_file, color_symbols;
-  xpm_XImage * xpm_image, * xpm_mask;
-
-  /* Configure the XPM lib.  Use the visual of frame F.  Allocate
-     close colors.  Return colors allocated.  */
-  bzero (&attrs, sizeof attrs);
-  xpm_image = xpm_mask = NULL;
-
-#if 0
-  attrs.visual = FRAME_X_VISUAL (f);
-  attrs.colormap = FRAME_X_COLORMAP (f);
-  attrs.valuemask |= XpmVisual;
-  attrs.valuemask |= XpmColormap;
-#endif
-  attrs.valuemask |= XpmReturnAllocPixels;
-#ifdef XpmAllocCloseColors
-  attrs.alloc_close_colors = 1;
-  attrs.valuemask |= XpmAllocCloseColors;
-#else
-  attrs.closeness = 600;
-  attrs.valuemask |= XpmCloseness;
-#endif
-
-  /* If image specification contains symbolic color definitions, add
-     these to `attrs'.  */
-  color_symbols = image_spec_value (img->spec, QCcolor_symbols, NULL);
-  if (CONSP (color_symbols))
-    {
-      Lisp_Object tail;
-      XpmColorSymbol *xpm_syms;
-      int i, size;
-
-      attrs.valuemask |= XpmColorSymbols;
-
-      /* Count number of symbols.  */
-      attrs.numsymbols = 0;
-      for (tail = color_symbols; CONSP (tail); tail = XCDR (tail))
-	++attrs.numsymbols;
-
-      /* Allocate an XpmColorSymbol array.  */
-      size = attrs.numsymbols * sizeof *xpm_syms;
-      xpm_syms = (XpmColorSymbol *) alloca (size);
-      bzero (xpm_syms, size);
-      attrs.colorsymbols = xpm_syms;
-
-      /* Fill the color symbol array.  */
-      for (tail = color_symbols, i = 0;
-	   CONSP (tail);
-	   ++i, tail = XCDR (tail))
-	{
-	  Lisp_Object name = XCAR (XCAR (tail));
-	  Lisp_Object color = XCDR (XCAR (tail));
-	  xpm_syms[i].name = (char *) alloca (SCHARS (name) + 1);
-	  strcpy (xpm_syms[i].name, SDATA (name));
-	  xpm_syms[i].value = (char *) alloca (SCHARS (color) + 1);
-	  strcpy (xpm_syms[i].value, SDATA (color));
-	}
-    }
-
-  /* Create a pixmap for the image, either from a file, or from a
-     string buffer containing data in the same format as an XPM file.  */
-
-  specified_file = image_spec_value (img->spec, QCfile, NULL);
-
-  {
-    HDC frame_dc = get_frame_dc (f);
-    hdc = CreateCompatibleDC (frame_dc);
-    release_frame_dc (f, frame_dc);
-  }
-
-  if (STRINGP (specified_file))
-    {
-      Lisp_Object file = x_find_image_file (specified_file);
-      if (!STRINGP (file))
-	{
-	  image_error ("Cannot find image file `%s'", specified_file, Qnil);
-	  return 0;
-	}
-
-      /* XpmReadFileToPixmap is not available in the Windows port of
-	 libxpm.  But XpmReadFileToImage almost does what we want.  */
-      rc = fn_XpmReadFileToImage (&hdc, SDATA (file),
-				  &xpm_image, &xpm_mask,
-				  &attrs);
-    }
-  else
-    {
-      Lisp_Object buffer = image_spec_value (img->spec, QCdata, NULL);
-      /* XpmCreatePixmapFromBuffer is not available in the Windows port
-	 of libxpm.  But XpmCreateImageFromBuffer almost does what we want.  */
-      rc = fn_XpmCreateImageFromBuffer (&hdc, SDATA (buffer),
-					&xpm_image, &xpm_mask,
-					&attrs);
-    }
-
-  if (rc == XpmSuccess)
-    {
-      int i;
-
-      /* W32 XPM uses XImage to wrap what W32 Emacs calls a Pixmap,
-	 plus some duplicate attributes.  */
-      if (xpm_image && xpm_image->bitmap)
-	{
-	  img->pixmap = xpm_image->bitmap;
-	  /* XImageFree in libXpm frees XImage struct without destroying
-	     the bitmap, which is what we want.  */
-	  fn_XImageFree (xpm_image);
-	}
-      if (xpm_mask && xpm_mask->bitmap)
-	{
-	  /* The mask appears to be inverted compared with what we expect.
-	     TODO: invert our expectations.  See other places where we
-	     have to invert bits because our idea of masks is backwards.  */
-	  HGDIOBJ old_obj;
-	  old_obj = SelectObject (hdc, xpm_mask->bitmap);
-
-	  PatBlt (hdc, 0, 0, xpm_mask->width, xpm_mask->height, DSTINVERT);
-	  SelectObject (hdc, old_obj);
-
-	  img->mask = xpm_mask->bitmap;
-	  fn_XImageFree (xpm_mask);
-	  DeleteDC (hdc);
-	}
-
-      DeleteDC (hdc);
-
-      /* Remember allocated colors.  */
-      img->ncolors = attrs.nalloc_pixels;
-      img->colors = (unsigned long *) xmalloc (img->ncolors
-					       * sizeof *img->colors);
-      for (i = 0; i < attrs.nalloc_pixels; ++i)
-	img->colors[i] = attrs.alloc_pixels[i];
-
-      img->width = attrs.width;
-      img->height = attrs.height;
-      xassert (img->width > 0 && img->height > 0);
-
-      /* The call to XpmFreeAttributes below frees attrs.alloc_pixels.  */
-      fn_XpmFreeAttributes (&attrs);
-    }
-  else
-    {
-      DeleteDC (hdc);
-
-      switch (rc)
-	{
-	case XpmOpenFailed:
-	  image_error ("Error opening XPM file (%s)", img->spec, Qnil);
-	  break;
-
-	case XpmFileInvalid:
-	  image_error ("Invalid XPM file (%s)", img->spec, Qnil);
-	  break;
-
-	case XpmNoMemory:
-	  image_error ("Out of memory (%s)", img->spec, Qnil);
-	  break;
-
-	case XpmColorFailed:
-	  image_error ("Color allocation error (%s)", img->spec, Qnil);
-	  break;
-
-	default:
-	  image_error ("Unknown error (%s)", img->spec, Qnil);
-	  break;
-	}
-    }
-
-  return rc == XpmSuccess;
-}
-
-#endif /* HAVE_XPM != 0 */
-
-
-#if 0 /* TODO : Color tables on W32.  */
-/***********************************************************************
-			     Color table
- ***********************************************************************/
-
-/* An entry in the color table mapping an RGB color to a pixel color.  */
-
-struct ct_color
-{
-  int r, g, b;
-  unsigned long pixel;
-
-  /* Next in color table collision list.  */
-  struct ct_color *next;
-};
-
-/* The bucket vector size to use.  Must be prime.  */
-
-#define CT_SIZE 101
-
-/* Value is a hash of the RGB color given by R, G, and B.  */
-
-#define CT_HASH_RGB(R, G, B) (((R) << 16) ^ ((G) << 8) ^ (B))
-
-/* The color hash table.  */
-
-struct ct_color **ct_table;
-
-/* Number of entries in the color table.  */
-
-int ct_colors_allocated;
-
-/* Function prototypes.  */
-
-static void init_color_table P_ ((void));
-static void free_color_table P_ ((void));
-static unsigned long *colors_in_color_table P_ ((int *n));
-static unsigned long lookup_rgb_color P_ ((struct frame *f, int r, int g, int b));
-static unsigned long lookup_pixel_color P_ ((struct frame *f, unsigned long p));
-
-
-/* Initialize the color table.  */
-
-static void
-init_color_table ()
-{
-  int size = CT_SIZE * sizeof (*ct_table);
-  ct_table = (struct ct_color **) xmalloc (size);
-  bzero (ct_table, size);
-  ct_colors_allocated = 0;
-}
-
-
-/* Free memory associated with the color table.  */
-
-static void
-free_color_table ()
-{
-  int i;
-  struct ct_color *p, *next;
-
-  for (i = 0; i < CT_SIZE; ++i)
-    for (p = ct_table[i]; p; p = next)
-      {
-	next = p->next;
-	xfree (p);
-      }
-
-  xfree (ct_table);
-  ct_table = NULL;
-}
-
-
-/* Value is a pixel color for RGB color R, G, B on frame F.  If an
-   entry for that color already is in the color table, return the
-   pixel color of that entry.  Otherwise, allocate a new color for R,
-   G, B, and make an entry in the color table.  */
-
-static unsigned long
-lookup_rgb_color (f, r, g, b)
-     struct frame *f;
-     int r, g, b;
-{
-  unsigned hash = CT_HASH_RGB (r, g, b);
-  int i = hash % CT_SIZE;
-  struct ct_color *p;
-
-  for (p = ct_table[i]; p; p = p->next)
-    if (p->r == r && p->g == g && p->b == b)
-      break;
-
-  if (p == NULL)
-    {
-      COLORREF color;
-      Colormap cmap;
-      int rc;
-
-      color = PALETTERGB (r, g, b);
-
-      ++ct_colors_allocated;
-
-      p = (struct ct_color *) xmalloc (sizeof *p);
-      p->r = r;
-      p->g = g;
-      p->b = b;
-      p->pixel = color;
-      p->next = ct_table[i];
-      ct_table[i] = p;
-    }
-
-  return p->pixel;
-}
-
-
-/* Look up pixel color PIXEL which is used on frame F in the color
-   table.  If not already present, allocate it.  Value is PIXEL.  */
-
-static unsigned long
-lookup_pixel_color (f, pixel)
-     struct frame *f;
-     unsigned long pixel;
-{
-  int i = pixel % CT_SIZE;
-  struct ct_color *p;
-
-  for (p = ct_table[i]; p; p = p->next)
-    if (p->pixel == pixel)
-      break;
-
-  if (p == NULL)
-    {
-      XColor color;
-      Colormap cmap;
-      int rc;
-
-      BLOCK_INPUT;
-
-      cmap = DefaultColormapOfScreen (FRAME_X_SCREEN (f));
-      color.pixel = pixel;
-      XQueryColor (NULL, cmap, &color);
-      rc = x_alloc_nearest_color (f, cmap, &color);
-      UNBLOCK_INPUT;
-
-      if (rc)
-	{
-	  ++ct_colors_allocated;
-
-	  p = (struct ct_color *) xmalloc (sizeof *p);
-	  p->r = color.red;
-	  p->g = color.green;
-	  p->b = color.blue;
-	  p->pixel = pixel;
-	  p->next = ct_table[i];
-	  ct_table[i] = p;
-	}
-      else
-	return FRAME_FOREGROUND_PIXEL (f);
-    }
-  return p->pixel;
-}
-
-
-/* Value is a vector of all pixel colors contained in the color table,
-   allocated via xmalloc.  Set *N to the number of colors.  */
-
-static unsigned long *
-colors_in_color_table (n)
-     int *n;
-{
-  int i, j;
-  struct ct_color *p;
-  unsigned long *colors;
-
-  if (ct_colors_allocated == 0)
-    {
-      *n = 0;
-      colors = NULL;
-    }
-  else
-    {
-      colors = (unsigned long *) xmalloc (ct_colors_allocated
-					  * sizeof *colors);
-      *n = ct_colors_allocated;
-
-      for (i = j = 0; i < CT_SIZE; ++i)
-	for (p = ct_table[i]; p; p = p->next)
-	  colors[j++] = p->pixel;
-    }
-
-  return colors;
-}
-
-#endif /* TODO */
-
-
-/***********************************************************************
-			      Algorithms
- ***********************************************************************/
-static XColor *x_to_xcolors P_ ((struct frame *, struct image *, int));
-static void x_from_xcolors P_ ((struct frame *, struct image *, XColor *));
-static void x_detect_edges P_ ((struct frame *, struct image *, int[9], int));
-static void XPutPixel (XImage *, int, int, COLORREF);
-
-/* Non-zero means draw a cross on images having `:conversion
-   disabled'.  */
-
-int cross_disabled_images;
-
-/* Edge detection matrices for different edge-detection
-   strategies.  */
-
-static int emboss_matrix[9] = {
-   /* x - 1	x	x + 1  */
-        2,     -1,  	  0,		/* y - 1 */
-       -1,      0,        1,		/* y     */
-        0,      1,       -2		/* y + 1 */
-};
-
-static int laplace_matrix[9] = {
-   /* x - 1	x	x + 1  */
-        1,      0,  	  0,		/* y - 1 */
-        0,      0,        0,		/* y     */
-        0,      0,       -1		/* y + 1 */
-};
-
-/* Value is the intensity of the color whose red/green/blue values
-   are R, G, and B.  */
-
-#define COLOR_INTENSITY(R, G, B) ((2 * (R) + 3 * (G) + (B)) / 6)
-
-
-/* On frame F, return an array of XColor structures describing image
-   IMG->pixmap.  Each XColor structure has its pixel color set.  RGB_P
-   non-zero means also fill the red/green/blue members of the XColor
-   structures.  Value is a pointer to the array of XColors structures,
-   allocated with xmalloc; it must be freed by the caller.  */
-
-static XColor *
-x_to_xcolors (f, img, rgb_p)
-     struct frame *f;
-     struct image *img;
-     int rgb_p;
-{
-  int x, y;
-  XColor *colors, *p;
-  HDC hdc, bmpdc;
-  HGDIOBJ prev;
-
-  colors = (XColor *) xmalloc (img->width * img->height * sizeof *colors);
-
-  /* Load the image into a memory device context.  */
-  hdc = get_frame_dc (f);
-  bmpdc = CreateCompatibleDC (hdc);
-  release_frame_dc (f, hdc);
-  prev = SelectObject (bmpdc, img->pixmap);
-
-  /* Fill the `pixel' members of the XColor array.  I wished there
-     were an easy and portable way to circumvent XGetPixel.  */
-  p = colors;
-  for (y = 0; y < img->height; ++y)
-    {
-      XColor *row = p;
-
-      for (x = 0; x < img->width; ++x, ++p)
-	{
-	  /* TODO: palette support needed here?  */
-	  p->pixel = GetPixel (bmpdc, x, y);
-
-	  if (rgb_p)
-	    {
-	      p->red = 256 * GetRValue (p->pixel);
-	      p->green = 256 * GetGValue (p->pixel);
-	      p->blue = 256 * GetBValue (p->pixel);
-	    }
-	}
-    }
-
-  SelectObject (bmpdc, prev);
-  DeleteDC (bmpdc);
-
-  return colors;
-}
-
-/* Put a pixel of COLOR at position X, Y in XIMG.  XIMG must have been
-   created with CreateDIBSection, with the pointer to the bit values
-   stored in ximg->data.  */
-
-static void XPutPixel (ximg, x, y, color)
-     XImage * ximg;
-     int x, y;
-     COLORREF color;
-{
-  int width = ximg->info.bmiHeader.biWidth;
-  int height = ximg->info.bmiHeader.biHeight;
-  unsigned char * pixel;
-
-  /* True color images.  */
-  if (ximg->info.bmiHeader.biBitCount == 24)
-    {
-      int rowbytes = width * 3;
-      /* Ensure scanlines are aligned on 4 byte boundaries.  */
-      if (rowbytes % 4)
-	rowbytes += 4 - (rowbytes % 4);
-
-      pixel = ximg->data + y * rowbytes + x * 3;
-      /* Windows bitmaps are in BGR order.  */
-      *pixel = GetBValue (color);
-      *(pixel + 1) = GetGValue (color);
-      *(pixel + 2) = GetRValue (color);
-    }
-  /* Monochrome images.  */
-  else if (ximg->info.bmiHeader.biBitCount == 1)
-    {
-      int rowbytes = width / 8;
-      /* Ensure scanlines are aligned on 4 byte boundaries.  */
-      if (rowbytes % 4)
-	rowbytes += 4 - (rowbytes % 4);
-      pixel = ximg->data + y * rowbytes + x / 8;
-      /* Filter out palette info.  */
-      if (color & 0x00ffffff)
-	*pixel = *pixel | (1 << x % 8);
-      else
-	*pixel = *pixel & ~(1 << x % 8);
-    }
-  else
-    image_error ("XPutPixel: palette image not supported", Qnil, Qnil);
-}
-
-/* Create IMG->pixmap from an array COLORS of XColor structures, whose
-   RGB members are set.  F is the frame on which this all happens.
-   COLORS will be freed; an existing IMG->pixmap will be freed, too.  */
-
-static void
-x_from_xcolors (f, img, colors)
-     struct frame *f;
-     struct image *img;
-     XColor *colors;
-{
-  int x, y;
-  XImage *oimg;
-  Pixmap pixmap;
-  XColor *p;
-#if 0   /* TODO: color tables.  */
-  init_color_table ();
-#endif
-  x_create_x_image_and_pixmap (f, img->width, img->height, 0,
-			       &oimg, &pixmap);
-  p = colors;
-  for (y = 0; y < img->height; ++y)
-    for (x = 0; x < img->width; ++x, ++p)
-      {
-	unsigned long pixel;
-#if 0  /* TODO: color tables.  */
-	pixel = lookup_rgb_color (f, p->red, p->green, p->blue);
-#else
-	pixel = PALETTERGB (p->red / 256, p->green / 256, p->blue / 256);
-#endif
-	XPutPixel (oimg, x, y, pixel);
-      }
-
-  xfree (colors);
-  x_clear_image_1 (f, img, 1, 0, 1);
-
-  x_put_x_image (f, oimg, pixmap, img->width, img->height);
-  x_destroy_x_image (oimg);
-  img->pixmap = pixmap;
-#if 0  /* TODO: color tables.  */
-  img->colors = colors_in_color_table (&img->ncolors);
-  free_color_table ();
-#endif
-}
-
-
-/* On frame F, perform edge-detection on image IMG.
-
-   MATRIX is a nine-element array specifying the transformation
-   matrix.  See emboss_matrix for an example.
-
-   COLOR_ADJUST is a color adjustment added to each pixel of the
-   outgoing image.  */
-
-static void
-x_detect_edges (f, img, matrix, color_adjust)
-     struct frame *f;
-     struct image *img;
-     int matrix[9], color_adjust;
-{
-  XColor *colors = x_to_xcolors (f, img, 1);
-  XColor *new, *p;
-  int x, y, i, sum;
-
-  for (i = sum = 0; i < 9; ++i)
-    sum += abs (matrix[i]);
-
-#define COLOR(A, X, Y) ((A) + (Y) * img->width + (X))
-
-  new = (XColor *) xmalloc (img->width * img->height * sizeof *new);
-
-  for (y = 0; y < img->height; ++y)
-    {
-      p = COLOR (new, 0, y);
-      p->red = p->green = p->blue = 0xffff/2;
-      p = COLOR (new, img->width - 1, y);
-      p->red = p->green = p->blue = 0xffff/2;
-    }
-
-  for (x = 1; x < img->width - 1; ++x)
-    {
-      p = COLOR (new, x, 0);
-      p->red = p->green = p->blue = 0xffff/2;
-      p = COLOR (new, x, img->height - 1);
-      p->red = p->green = p->blue = 0xffff/2;
-    }
-
-  for (y = 1; y < img->height - 1; ++y)
-    {
-      p = COLOR (new, 1, y);
-
-      for (x = 1; x < img->width - 1; ++x, ++p)
-	{
-	  int r, g, b, y1, x1;
-
-	  r = g = b = i = 0;
-	  for (y1 = y - 1; y1 < y + 2; ++y1)
-	    for (x1 = x - 1; x1 < x + 2; ++x1, ++i)
-	      if (matrix[i])
-	        {
-	          XColor *t = COLOR (colors, x1, y1);
-		  r += matrix[i] * t->red;
-		  g += matrix[i] * t->green;
-		  b += matrix[i] * t->blue;
-		}
-
-	  r = (r / sum + color_adjust) & 0xffff;
-	  g = (g / sum + color_adjust) & 0xffff;
-	  b = (b / sum + color_adjust) & 0xffff;
-	  p->red = p->green = p->blue = COLOR_INTENSITY (r, g, b);
-	}
-    }
-
-  xfree (colors);
-  x_from_xcolors (f, img, new);
-
-#undef COLOR
-}
-
-
-/* Perform the pre-defined `emboss' edge-detection on image IMG
-   on frame F.  */
-
-static void
-x_emboss (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  x_detect_edges (f, img, emboss_matrix, 0xffff / 2);
-}
-
-
-/* Transform image IMG which is used on frame F with a Laplace
-   edge-detection algorithm.  The result is an image that can be used
-   to draw disabled buttons, for example.  */
-
-static void
-x_laplace (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  x_detect_edges (f, img, laplace_matrix, 45000);
-}
-
-
-/* Perform edge-detection on image IMG on frame F, with specified
-   transformation matrix MATRIX and color-adjustment COLOR_ADJUST.
-
-   MATRIX must be either
-
-   - a list of at least 9 numbers in row-major form
-   - a vector of at least 9 numbers
-
-   COLOR_ADJUST nil means use a default; otherwise it must be a
-   number.  */
-
-static void
-x_edge_detection (f, img, matrix, color_adjust)
-     struct frame *f;
-     struct image *img;
-     Lisp_Object matrix, color_adjust;
-{
-  int i = 0;
-  int trans[9];
-
-  if (CONSP (matrix))
-    {
-      for (i = 0;
-	   i < 9 && CONSP (matrix) && NUMBERP (XCAR (matrix));
-	   ++i, matrix = XCDR (matrix))
-	trans[i] = XFLOATINT (XCAR (matrix));
-    }
-  else if (VECTORP (matrix) && ASIZE (matrix) >= 9)
-    {
-      for (i = 0; i < 9 && NUMBERP (AREF (matrix, i)); ++i)
-	trans[i] = XFLOATINT (AREF (matrix, i));
-    }
-
-  if (NILP (color_adjust))
-    color_adjust = make_number (0xffff / 2);
-
-  if (i == 9 && NUMBERP (color_adjust))
-    x_detect_edges (f, img, trans, (int) XFLOATINT (color_adjust));
-}
-
-
-/* Transform image IMG on frame F so that it looks disabled.  */
-
-static void
-x_disable_image (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  struct w32_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
-
-  if (dpyinfo->n_planes * dpyinfo->n_cbits >= 2)
-    {
-      /* Color (or grayscale).  Convert to gray, and equalize.  Just
-	 drawing such images with a stipple can look very odd, so
-	 we're using this method instead.  */
-      XColor *colors = x_to_xcolors (f, img, 1);
-      XColor *p, *end;
-      const int h = 15000;
-      const int l = 30000;
-
-      for (p = colors, end = colors + img->width * img->height;
-	   p < end;
-	   ++p)
-	{
-	  int i = COLOR_INTENSITY (p->red, p->green, p->blue);
-	  int i2 = (0xffff - h - l) * i / 0xffff + l;
-	  p->red = p->green = p->blue = i2;
-	}
-
-      x_from_xcolors (f, img, colors);
-    }
-
-  /* Draw a cross over the disabled image, if we must or if we
-     should.  */
-  if (dpyinfo->n_planes * dpyinfo->n_cbits < 2 || cross_disabled_images)
-    {
-      HDC hdc, bmpdc;
-      HGDIOBJ prev;
-
-      hdc = get_frame_dc (f);
-      bmpdc = CreateCompatibleDC (hdc);
-      release_frame_dc (f, hdc);
-
-      prev = SelectObject (bmpdc, img->pixmap);
-
-      SetTextColor (bmpdc, BLACK_PIX_DEFAULT (f));
-      MoveToEx (bmpdc, 0, 0, NULL);
-      LineTo (bmpdc, img->width - 1, img->height - 1);
-      MoveToEx (bmpdc, 0, img->height - 1, NULL);
-      LineTo (bmpdc, img->width - 1, 0);
-
-      if (img->mask)
-	{
-	  SelectObject (bmpdc, img->mask);
-	  SetTextColor (bmpdc, WHITE_PIX_DEFAULT (f));
-	  MoveToEx (bmpdc, 0, 0, NULL);
-	  LineTo (bmpdc, img->width - 1, img->height - 1);
-	  MoveToEx (bmpdc, 0, img->height - 1, NULL);
-	  LineTo (bmpdc, img->width - 1, 0);
-	}
-      SelectObject (bmpdc, prev);
-      DeleteDC (bmpdc);
-    }
-}
-
-
-/* Build a mask for image IMG which is used on frame F. FILE is the
-   name of an image file, for error messages. HOW determines how to
-   determine the background color of IMG. If it is a list '(R G B)',
-   with R, G, and B being integers >= 0, take that as the color of the
-   background. Otherwise, determine the background color of IMG
-   heuristically. Value is non-zero if successful. */
-
-static int
-x_build_heuristic_mask (f, img, how)
-     struct frame *f;
-     struct image *img;
-     Lisp_Object how;
-{
-  HDC img_dc, frame_dc;
-  HGDIOBJ prev;
-  char *mask_img;
-  int x, y, rc, use_img_background;
-  unsigned long bg = 0;
-  int row_width;
-
-  if (img->mask)
-    {
-      DeleteObject (img->mask);
-      img->mask = NULL;
-      img->background_transparent_valid = 0;
-    }
-
-  /* Create the bit array serving as mask.  */
-  row_width = (img->width + 7) / 8;
-  mask_img = xmalloc (row_width * img->height);
-  bzero (mask_img, row_width * img->height);
-
-  /* Create a memory device context for IMG->pixmap.  */
-  frame_dc = get_frame_dc (f);
-  img_dc = CreateCompatibleDC (frame_dc);
-  release_frame_dc (f, frame_dc);
-  prev = SelectObject (img_dc, img->pixmap);
-
-  /* Determine the background color of img_dc.  If HOW is `(R G B)'
-     take that as color.  Otherwise, use the image's background color.  */
-  use_img_background = 1;
-
-  if (CONSP (how))
-    {
-      int rgb[3], i;
-
-      for (i = 0; i < 3 && CONSP (how) && NATNUMP (XCAR (how)); ++i)
-	{
-	  rgb[i] = XFASTINT (XCAR (how)) & 0xffff;
-	  how = XCDR (how);
-	}
-
-      if (i == 3 && NILP (how))
-	{
-	  char color_name[30];
-	  sprintf (color_name, "#%04x%04x%04x", rgb[0], rgb[1], rgb[2]);
-	  bg = x_alloc_image_color (f, img, build_string (color_name), 0)
-	    & 0x00ffffff; /* Filter out palette info.  */
-	  use_img_background = 0;
-	}
-    }
-
-  if (use_img_background)
-    bg = four_corners_best (img_dc, img->width, img->height);
-
-  /* Set all bits in mask_img to 1 whose color in ximg is different
-     from the background color bg.  */
-  for (y = 0; y < img->height; ++y)
-    for (x = 0; x < img->width; ++x)
-      {
-	COLORREF p = GetPixel (img_dc, x, y);
-	if (p != bg)
-	  mask_img[y * row_width + x / 8] |= 1 << (x % 8);
-      }
-
-  /* Create the mask image.  */
-  img->mask = w32_create_pixmap_from_bitmap_data (img->width, img->height,
-						  mask_img);
-
-  /* Fill in the background_transparent field while we have the mask handy. */
-  SelectObject (img_dc, img->mask);
-
-  image_background_transparent (img, f, img_dc);
-
-  /* Put mask_img into img->mask.  */
-  x_destroy_x_image ((XImage *)mask_img);
-  SelectObject (img_dc, prev);
-  DeleteDC (img_dc);
-
-  return 1;
-}
-
-
-/***********************************************************************
-		       PBM (mono, gray, color)
- ***********************************************************************/
-
-static int pbm_image_p P_ ((Lisp_Object object));
-static int pbm_load P_ ((struct frame *f, struct image *img));
-static int pbm_scan_number P_ ((unsigned char **, unsigned char *));
-
-/* The symbol `pbm' identifying images of this type.  */
-
-Lisp_Object Qpbm;
-
-/* Indices of image specification fields in gs_format, below.  */
-
-enum pbm_keyword_index
-{
-  PBM_TYPE,
-  PBM_FILE,
-  PBM_DATA,
-  PBM_ASCENT,
-  PBM_MARGIN,
-  PBM_RELIEF,
-  PBM_ALGORITHM,
-  PBM_HEURISTIC_MASK,
-  PBM_MASK,
-  PBM_FOREGROUND,
-  PBM_BACKGROUND,
-  PBM_LAST
-};
-
-/* Vector of image_keyword structures describing the format
-   of valid user-defined image specifications.  */
-
-static struct image_keyword pbm_format[PBM_LAST] =
-{
-  {":type",		IMAGE_SYMBOL_VALUE,			1},
-  {":file",		IMAGE_STRING_VALUE,			0},
-  {":data",		IMAGE_STRING_VALUE,			0},
-  {":ascent",		IMAGE_ASCENT_VALUE,			0},
-  {":margin",		IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,	0},
-  {":relief",		IMAGE_INTEGER_VALUE,			0},
-  {":conversion",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":heuristic-mask",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":mask",		IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":foreground",	IMAGE_STRING_OR_NIL_VALUE,		0},
-  {":background",	IMAGE_STRING_OR_NIL_VALUE,		0}
-};
-
-/* Structure describing the image type `pbm'.  */
-
-static struct image_type pbm_type =
-{
-  &Qpbm,
-  pbm_image_p,
-  pbm_load,
-  x_clear_image,
-  NULL
-};
-
-
-/* Return non-zero if OBJECT is a valid PBM image specification.  */
-
-static int
-pbm_image_p (object)
-     Lisp_Object object;
-{
-  struct image_keyword fmt[PBM_LAST];
-
-  bcopy (pbm_format, fmt, sizeof fmt);
-
-  if (!parse_image_spec (object, fmt, PBM_LAST, Qpbm))
-    return 0;
-
-  /* Must specify either :data or :file.  */
-  return fmt[PBM_DATA].count + fmt[PBM_FILE].count == 1;
-}
-
-
-/* Scan a decimal number from *S and return it.  Advance *S while
-   reading the number.  END is the end of the string.  Value is -1 at
-   end of input.  */
-
-static int
-pbm_scan_number (s, end)
-     unsigned char **s, *end;
-{
-  int c, val = -1;
-
-  while (*s < end)
-    {
-      /* Skip white-space.  */
-      while (*s < end && (c = *(*s)++, isspace (c)))
-	;
-
-      if (c == '#')
-	{
-	  /* Skip comment to end of line.  */
-	  while (*s < end && (c = *(*s)++, c != '\n'))
-	    ;
-	}
-      else if (isdigit (c))
-	{
-	  /* Read decimal number.  */
-	  val = c - '0';
-	  while (*s < end && (c = *(*s)++, isdigit (c)))
-	    val = 10 * val + c - '0';
-	  break;
-	}
-      else
-	break;
-    }
-
-  return val;
-}
-
-
-/* Read FILE into memory.  Value is a pointer to a buffer allocated
-   with xmalloc holding FILE's contents.  Value is null if an error
-   occurred.  *SIZE is set to the size of the file.  */
-
-static char *
-pbm_read_file (file, size)
-     Lisp_Object file;
-     int *size;
-{
-  FILE *fp = NULL;
-  char *buf = NULL;
-  struct stat st;
-
-  if (stat (SDATA (file), &st) == 0
-      && (fp = fopen (SDATA (file), "rb")) != NULL
-      && (buf = (char *) xmalloc (st.st_size),
-	  fread (buf, 1, st.st_size, fp) == st.st_size))
-    {
-      *size = st.st_size;
-      fclose (fp);
-    }
-  else
-    {
-      if (fp)
-	fclose (fp);
-      if (buf)
-	{
-	  xfree (buf);
-	  buf = NULL;
-	}
-    }
-
-  return buf;
-}
-
-
-/* Load PBM image IMG for use on frame F.  */
-
-static int
-pbm_load (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  int raw_p, x, y;
-  int width, height, max_color_idx = 0;
-  XImage *ximg;
-  Lisp_Object file, specified_file;
-  enum {PBM_MONO, PBM_GRAY, PBM_COLOR} type;
-  struct gcpro gcpro1;
-  unsigned char *contents = NULL;
-  unsigned char *end, *p;
-  int size;
-
-  specified_file = image_spec_value (img->spec, QCfile, NULL);
-  file = Qnil;
-  GCPRO1 (file);
-
-  if (STRINGP (specified_file))
-    {
-      file = x_find_image_file (specified_file);
-      if (!STRINGP (file))
-        {
-          image_error ("Cannot find image file `%s'", specified_file, Qnil);
-          UNGCPRO;
-          return 0;
-        }
-
-      contents = slurp_file (SDATA (file), &size);
-      if (contents == NULL)
-	{
-	  image_error ("Error reading `%s'", file, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-
-      p = contents;
-      end = contents + size;
-    }
-  else
-    {
-      Lisp_Object data;
-      data = image_spec_value (img->spec, QCdata, NULL);
-      p = SDATA (data);
-      end = p + SBYTES (data);
-    }
-
-  /* Check magic number.  */
-  if (end - p < 2 || *p++ != 'P')
-    {
-      image_error ("Not a PBM image: `%s'", img->spec, Qnil);
-    error:
-      xfree (contents);
-      UNGCPRO;
-      return 0;
-    }
-
-  switch (*p++)
-    {
-    case '1':
-      raw_p = 0, type = PBM_MONO;
-      break;
-
-    case '2':
-      raw_p = 0, type = PBM_GRAY;
-      break;
-
-    case '3':
-      raw_p = 0, type = PBM_COLOR;
-      break;
-
-    case '4':
-      raw_p = 1, type = PBM_MONO;
-      break;
-
-    case '5':
-      raw_p = 1, type = PBM_GRAY;
-      break;
-
-    case '6':
-      raw_p = 1, type = PBM_COLOR;
-      break;
-
-    default:
-      image_error ("Not a PBM image: `%s'", img->spec, Qnil);
-      goto error;
-    }
-
-  /* Read width, height, maximum color-component.  Characters
-     starting with `#' up to the end of a line are ignored.  */
-  width = pbm_scan_number (&p, end);
-  height = pbm_scan_number (&p, end);
-
-  if (type != PBM_MONO)
-    {
-      max_color_idx = pbm_scan_number (&p, end);
-      if (raw_p && max_color_idx > 255)
-	max_color_idx = 255;
-    }
-
-  if (width < 0
-      || height < 0
-      || (type != PBM_MONO && max_color_idx < 0))
-    goto error;
-
-  if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
-    goto error;
-
-#if 0  /* TODO: color tables.  */
-  /* Initialize the color hash table.  */
-  init_color_table ();
-#endif
-
-  if (type == PBM_MONO)
-    {
-      int c = 0, g;
-      struct image_keyword fmt[PBM_LAST];
-      unsigned long fg = FRAME_FOREGROUND_PIXEL (f);
-      unsigned long bg = FRAME_BACKGROUND_PIXEL (f);
-
-      /* Parse the image specification.  */
-      bcopy (pbm_format, fmt, sizeof fmt);
-      parse_image_spec (img->spec, fmt, PBM_LAST, Qpbm);
-
-      /* Get foreground and background colors, maybe allocate colors.  */
-      if (fmt[PBM_FOREGROUND].count
-	  && STRINGP (fmt[PBM_FOREGROUND].value))
-	fg = x_alloc_image_color (f, img, fmt[PBM_FOREGROUND].value, fg);
-      if (fmt[PBM_BACKGROUND].count
-	  && STRINGP (fmt[PBM_BACKGROUND].value))
-	{
-	  bg = x_alloc_image_color (f, img, fmt[PBM_BACKGROUND].value, bg);
-	  img->background = bg;
-	  img->background_valid = 1;
-	}
-
-      for (y = 0; y < height; ++y)
-	for (x = 0; x < width; ++x)
-	  {
-	    if (raw_p)
-	      {
-		if ((x & 7) == 0)
-		  c = *p++;
-		g = c & 0x80;
-		c <<= 1;
-	      }
-	    else
-	      g = pbm_scan_number (&p, end);
-
-	    XPutPixel (ximg, x, y, g ? fg : bg);
-	  }
-    }
-  else
-    {
-      for (y = 0; y < height; ++y)
-	for (x = 0; x < width; ++x)
-	  {
-	    int r, g, b;
-
-	    if (type == PBM_GRAY)
-	      r = g = b = raw_p ? *p++ : pbm_scan_number (&p, end);
-	    else if (raw_p)
-	      {
-		r = *p++;
-		g = *p++;
-		b = *p++;
-	      }
-	    else
-	      {
-		r = pbm_scan_number (&p, end);
-		g = pbm_scan_number (&p, end);
-		b = pbm_scan_number (&p, end);
-	      }
-
-	    if (r < 0 || g < 0 || b < 0)
-	      {
-		x_destroy_x_image (ximg);
-		image_error ("Invalid pixel value in image `%s'",
-			     img->spec, Qnil);
-                goto error;
-	      }
-
-	    /* RGB values are now in the range 0..max_color_idx.
-	       Scale this to the range 0..0xff supported by W32.  */
-	    r = (int) ((double) r * 255 / max_color_idx);
-	    g = (int) ((double) g * 255 / max_color_idx);
-	    b = (int) ((double) b * 255 / max_color_idx);
-	    XPutPixel (ximg, x, y,
-#if 0  /* TODO: color tables.  */
-		       lookup_rgb_color (f, r, g, b));
-#else
-	    PALETTERGB (r, g, b));
-#endif
-	  }
-    }
-
-#if 0  /* TODO: color tables.  */
-  /* Store in IMG->colors the colors allocated for the image, and
-     free the color table.  */
-  img->colors = colors_in_color_table (&img->ncolors);
-  free_color_table ();
-#endif
-  /* Maybe fill in the background field while we have ximg handy.  */
-  if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
-    IMAGE_BACKGROUND (img, f, ximg);
-
-  /* Put the image into a pixmap.  */
-  x_put_x_image (f, ximg, img->pixmap, width, height);
-  x_destroy_x_image (ximg);
-
-  img->width = width;
-  img->height = height;
-
-  UNGCPRO;
-  xfree (contents);
-  return 1;
-}
-
-
-/***********************************************************************
-				 PNG
- ***********************************************************************/
-
-#if HAVE_PNG
-
-#include <png.h>
-
-/* Function prototypes.  */
-
-static int png_image_p P_ ((Lisp_Object object));
-static int png_load P_ ((struct frame *f, struct image *img));
-
-/* The symbol `png' identifying images of this type.  */
-
-Lisp_Object Qpng;
-
-/* Indices of image specification fields in png_format, below.  */
-
-enum png_keyword_index
-{
-  PNG_TYPE,
-  PNG_DATA,
-  PNG_FILE,
-  PNG_ASCENT,
-  PNG_MARGIN,
-  PNG_RELIEF,
-  PNG_ALGORITHM,
-  PNG_HEURISTIC_MASK,
-  PNG_MASK,
-  PNG_BACKGROUND,
-  PNG_LAST
-};
-
-/* Vector of image_keyword structures describing the format
-   of valid user-defined image specifications.  */
-
-static struct image_keyword png_format[PNG_LAST] =
-{
-  {":type",		IMAGE_SYMBOL_VALUE,			1},
-  {":data",		IMAGE_STRING_VALUE,			0},
-  {":file",		IMAGE_STRING_VALUE,			0},
-  {":ascent",		IMAGE_ASCENT_VALUE,			0},
-  {":margin",		IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,	0},
-  {":relief",		IMAGE_INTEGER_VALUE,			0},
-  {":conversion",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":heuristic-mask",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":mask",		IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":background",	IMAGE_STRING_OR_NIL_VALUE,		0}
-};
-
-/* Structure describing the image type `png'.  */
-
-static struct image_type png_type =
-{
-  &Qpng,
-  png_image_p,
-  png_load,
-  x_clear_image,
-  NULL
-};
-
-/* PNG library details.  */
-
-DEF_IMGLIB_FN (png_get_io_ptr);
-DEF_IMGLIB_FN (png_check_sig);
-DEF_IMGLIB_FN (png_create_read_struct);
-DEF_IMGLIB_FN (png_create_info_struct);
-DEF_IMGLIB_FN (png_destroy_read_struct);
-DEF_IMGLIB_FN (png_set_read_fn);
-DEF_IMGLIB_FN (png_init_io);
-DEF_IMGLIB_FN (png_set_sig_bytes);
-DEF_IMGLIB_FN (png_read_info);
-DEF_IMGLIB_FN (png_get_IHDR);
-DEF_IMGLIB_FN (png_get_valid);
-DEF_IMGLIB_FN (png_set_strip_16);
-DEF_IMGLIB_FN (png_set_expand);
-DEF_IMGLIB_FN (png_set_gray_to_rgb);
-DEF_IMGLIB_FN (png_set_background);
-DEF_IMGLIB_FN (png_get_bKGD);
-DEF_IMGLIB_FN (png_read_update_info);
-DEF_IMGLIB_FN (png_get_channels);
-DEF_IMGLIB_FN (png_get_rowbytes);
-DEF_IMGLIB_FN (png_read_image);
-DEF_IMGLIB_FN (png_read_end);
-DEF_IMGLIB_FN (png_error);
-
-static int
-init_png_functions (library)
-     HMODULE library;
-{
-  LOAD_IMGLIB_FN (library, png_get_io_ptr);
-  LOAD_IMGLIB_FN (library, png_check_sig);
-  LOAD_IMGLIB_FN (library, png_create_read_struct);
-  LOAD_IMGLIB_FN (library, png_create_info_struct);
-  LOAD_IMGLIB_FN (library, png_destroy_read_struct);
-  LOAD_IMGLIB_FN (library, png_set_read_fn);
-  LOAD_IMGLIB_FN (library, png_init_io);
-  LOAD_IMGLIB_FN (library, png_set_sig_bytes);
-  LOAD_IMGLIB_FN (library, png_read_info);
-  LOAD_IMGLIB_FN (library, png_get_IHDR);
-  LOAD_IMGLIB_FN (library, png_get_valid);
-  LOAD_IMGLIB_FN (library, png_set_strip_16);
-  LOAD_IMGLIB_FN (library, png_set_expand);
-  LOAD_IMGLIB_FN (library, png_set_gray_to_rgb);
-  LOAD_IMGLIB_FN (library, png_set_background);
-  LOAD_IMGLIB_FN (library, png_get_bKGD);
-  LOAD_IMGLIB_FN (library, png_read_update_info);
-  LOAD_IMGLIB_FN (library, png_get_channels);
-  LOAD_IMGLIB_FN (library, png_get_rowbytes);
-  LOAD_IMGLIB_FN (library, png_read_image);
-  LOAD_IMGLIB_FN (library, png_read_end);
-  LOAD_IMGLIB_FN (library, png_error);
-  return 1;
-}
-
-/* Return non-zero if OBJECT is a valid PNG image specification.  */
-
-static int
-png_image_p (object)
-     Lisp_Object object;
-{
-  struct image_keyword fmt[PNG_LAST];
-  bcopy (png_format, fmt, sizeof fmt);
-
-  if (!parse_image_spec (object, fmt, PNG_LAST, Qpng))
-    return 0;
-
-  /* Must specify either the :data or :file keyword.  */
-  return fmt[PNG_FILE].count + fmt[PNG_DATA].count == 1;
-}
-
-
-/* Error and warning handlers installed when the PNG library
-   is initialized.  */
-
-static void
-my_png_error (png_ptr, msg)
-     png_struct *png_ptr;
-     char *msg;
-{
-  xassert (png_ptr != NULL);
-  image_error ("PNG error: %s", build_string (msg), Qnil);
-  longjmp (png_ptr->jmpbuf, 1);
-}
-
-
-static void
-my_png_warning (png_ptr, msg)
-     png_struct *png_ptr;
-     char *msg;
-{
-  xassert (png_ptr != NULL);
-  image_error ("PNG warning: %s", build_string (msg), Qnil);
-}
-
-/* Memory source for PNG decoding.  */
-
-struct png_memory_storage
-{
-  unsigned char *bytes;		/* The data       */
-  size_t len;			/* How big is it? */
-  int index;			/* Where are we?  */
-};
-
-
-/* Function set as reader function when reading PNG image from memory.
-   PNG_PTR is a pointer to the PNG control structure.  Copy LENGTH
-   bytes from the input to DATA.  */
-
-static void
-png_read_from_memory (png_ptr, data, length)
-     png_structp png_ptr;
-     png_bytep data;
-     png_size_t length;
-{
-  struct png_memory_storage *tbr
-    = (struct png_memory_storage *) fn_png_get_io_ptr (png_ptr);
-
-  if (length > tbr->len - tbr->index)
-    fn_png_error (png_ptr, "Read error");
-
-  bcopy (tbr->bytes + tbr->index, data, length);
-  tbr->index = tbr->index + length;
-}
-
-/* Load PNG image IMG for use on frame F.  Value is non-zero if
-   successful.  */
-
-static int
-png_load (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  Lisp_Object file, specified_file;
-  Lisp_Object specified_data;
-  int x, y, i;
-  XImage *ximg, *mask_img = NULL;
-  struct gcpro gcpro1;
-  png_struct *png_ptr = NULL;
-  png_info *info_ptr = NULL, *end_info = NULL;
-  FILE *volatile fp = NULL;
-  png_byte sig[8];
-  png_byte * volatile pixels = NULL;
-  png_byte ** volatile rows = NULL;
-  png_uint_32 width, height;
-  int bit_depth, color_type, interlace_type;
-  png_byte channels;
-  png_uint_32 row_bytes;
-  int transparent_p;
-  double screen_gamma, image_gamma;
-  int intent;
-  struct png_memory_storage tbr;  /* Data to be read */
-
-  /* Find out what file to load.  */
-  specified_file = image_spec_value (img->spec, QCfile, NULL);
-  specified_data = image_spec_value (img->spec, QCdata, NULL);
-  file = Qnil;
-  GCPRO1 (file);
-
-  if (NILP (specified_data))
-    {
-      file = x_find_image_file (specified_file);
-      if (!STRINGP (file))
-	{
-	  image_error ("Cannot find image file `%s'", specified_file, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-
-      /* Open the image file.  */
-      fp = fopen (SDATA (file), "rb");
-      if (!fp)
-	{
-	  image_error ("Cannot open image file `%s'", file, Qnil);
-	  UNGCPRO;
-	  fclose (fp);
-	  return 0;
-	}
-
-      /* Check PNG signature.  */
-      if (fread (sig, 1, sizeof sig, fp) != sizeof sig
-	  || !fn_png_check_sig (sig, sizeof sig))
-	{
-	  image_error ("Not a PNG file: `%s'", file, Qnil);
-	  UNGCPRO;
-	  fclose (fp);
-	  return 0;
-	}
-    }
-  else
-    {
-      /* Read from memory.  */
-      tbr.bytes = SDATA (specified_data);
-      tbr.len = SBYTES (specified_data);
-      tbr.index = 0;
-
-      /* Check PNG signature.  */
-      if (tbr.len < sizeof sig
-	  || !fn_png_check_sig (tbr.bytes, sizeof sig))
-	{
-	  image_error ("Not a PNG image: `%s'", img->spec, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-
-      /* Need to skip past the signature.  */
-      tbr.bytes += sizeof (sig);
-    }
-
-  /* Initialize read and info structs for PNG lib.  */
-  png_ptr = fn_png_create_read_struct (PNG_LIBPNG_VER_STRING, NULL,
-				       my_png_error, my_png_warning);
-  if (!png_ptr)
-    {
-      if (fp) fclose (fp);
-      UNGCPRO;
-      return 0;
-    }
-
-  info_ptr = fn_png_create_info_struct (png_ptr);
-  if (!info_ptr)
-    {
-      fn_png_destroy_read_struct (&png_ptr, NULL, NULL);
-      if (fp) fclose (fp);
-      UNGCPRO;
-      return 0;
-    }
-
-  end_info = fn_png_create_info_struct (png_ptr);
-  if (!end_info)
-    {
-      fn_png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
-      if (fp) fclose (fp);
-      UNGCPRO;
-      return 0;
-    }
-
-  /* Set error jump-back.  We come back here when the PNG library
-     detects an error.  */
-  if (setjmp (png_ptr->jmpbuf))
-    {
-    error:
-      if (png_ptr)
-        fn_png_destroy_read_struct (&png_ptr, &info_ptr, &end_info);
-      xfree (pixels);
-      xfree (rows);
-      if (fp) fclose (fp);
-      UNGCPRO;
-      return 0;
-    }
-
-  /* Read image info.  */
-  if (!NILP (specified_data))
-    fn_png_set_read_fn (png_ptr, (void *) &tbr, png_read_from_memory);
-  else
-    fn_png_init_io (png_ptr, fp);
-
-  fn_png_set_sig_bytes (png_ptr, sizeof sig);
-  fn_png_read_info (png_ptr, info_ptr);
-  fn_png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
-		   &interlace_type, NULL, NULL);
-
-  /* If image contains simply transparency data, we prefer to
-     construct a clipping mask.  */
-  if (fn_png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS))
-    transparent_p = 1;
-  else
-    transparent_p = 0;
-
-  /* This function is easier to write if we only have to handle
-     one data format: RGB or RGBA with 8 bits per channel.  Let's
-     transform other formats into that format.  */
-
-  /* Strip more than 8 bits per channel.  */
-  if (bit_depth == 16)
-    fn_png_set_strip_16 (png_ptr);
-
-  /* Expand data to 24 bit RGB, or 8 bit grayscale, with alpha channel
-     if available.  */
-  fn_png_set_expand (png_ptr);
-
-  /* Convert grayscale images to RGB.  */
-  if (color_type == PNG_COLOR_TYPE_GRAY
-      || color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
-    fn_png_set_gray_to_rgb (png_ptr);
-
-  screen_gamma = (f->gamma ? 1 / f->gamma / 0.45455 : 2.2);
-
-#if 0 /* Avoid double gamma correction for PNG images. */
-  /* Tell the PNG lib to handle gamma correction for us.  */
-#if defined(PNG_READ_sRGB_SUPPORTED) || defined(PNG_WRITE_sRGB_SUPPORTED)
-  if (png_get_sRGB (png_ptr, info_ptr, &intent))
-    /* The libpng documentation says this is right in this case.  */
-    png_set_gamma (png_ptr, screen_gamma, 0.45455);
-  else
-#endif
-  if (png_get_gAMA (png_ptr, info_ptr, &image_gamma))
-    /* Image contains gamma information.  */
-    png_set_gamma (png_ptr, screen_gamma, image_gamma);
-  else
-    /* Use the standard default for the image gamma.  */
-    png_set_gamma (png_ptr, screen_gamma, 0.45455);
-#endif /* if 0 */
-
-  /* Handle alpha channel by combining the image with a background
-     color.  Do this only if a real alpha channel is supplied.  For
-     simple transparency, we prefer a clipping mask.  */
-  if (!transparent_p)
-    {
-      png_color_16 *image_bg;
-      Lisp_Object specified_bg
-	= image_spec_value (img->spec, QCbackground, NULL);
-
-      if (STRINGP (specified_bg))
-	/* The user specified `:background', use that.  */
-	{
-	  COLORREF color;
-	  if (w32_defined_color (f, SDATA (specified_bg), &color, 0))
-	    {
-	      png_color_16 user_bg;
-
-	      bzero (&user_bg, sizeof user_bg);
-	      user_bg.red = 256 * GetRValue (color);
-	      user_bg.green = 256 * GetGValue (color);
-	      user_bg.blue = 256 * GetBValue (color);
-
-	      fn_png_set_background (png_ptr, &user_bg,
-				     PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
-	    }
-	}
-      else if (fn_png_get_bKGD (png_ptr, info_ptr, &image_bg))
-	/* Image contains a background color with which to
-	   combine the image.  */
-	fn_png_set_background (png_ptr, image_bg,
-			       PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
-      else
-	{
-	  /* Image does not contain a background color with which
-	     to combine the image data via an alpha channel.  Use
-	     the frame's background instead.  */
-	  COLORREF color;
-	  png_color_16 frame_background;
-	  color = FRAME_BACKGROUND_PIXEL (f);
-#if 0 /* TODO : Colormap support.  */
-	  Colormap cmap;
-
-	  cmap = FRAME_X_COLORMAP (f);
-	  x_query_color (f, &color);
-#endif
-
-	  bzero (&frame_background, sizeof frame_background);
-	  frame_background.red = 256 * GetRValue (color);
-	  frame_background.green = 256 * GetGValue (color);
-	  frame_background.blue = 256 * GetBValue (color);
-
-	  fn_png_set_background (png_ptr, &frame_background,
-				 PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
-	}
-    }
-
-  /* Update info structure.  */
-  fn_png_read_update_info (png_ptr, info_ptr);
-
-  /* Get number of channels.  Valid values are 1 for grayscale images
-     and images with a palette, 2 for grayscale images with transparency
-     information (alpha channel), 3 for RGB images, and 4 for RGB
-     images with alpha channel, i.e. RGBA.  If conversions above were
-     sufficient we should only have 3 or 4 channels here.  */
-  channels = fn_png_get_channels (png_ptr, info_ptr);
-  xassert (channels == 3 || channels == 4);
-
-  /* Number of bytes needed for one row of the image.  */
-  row_bytes = fn_png_get_rowbytes (png_ptr, info_ptr);
-
-  /* Allocate memory for the image.  */
-  pixels = (png_byte *) xmalloc (row_bytes * height * sizeof *pixels);
-  rows = (png_byte **) xmalloc (height * sizeof *rows);
-  for (i = 0; i < height; ++i)
-    rows[i] = pixels + i * row_bytes;
-
-  /* Read the entire image.  */
-  fn_png_read_image (png_ptr, rows);
-  fn_png_read_end (png_ptr, info_ptr);
-  if (fp)
-    {
-      fclose (fp);
-      fp = NULL;
-    }
-
-  /* Create the X image and pixmap.  */
-  if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg,
-				    &img->pixmap))
-    goto error;
-
-  /* Create an image and pixmap serving as mask if the PNG image
-     contains an alpha channel.  */
-  if (channels == 4
-      && !transparent_p
-      && !x_create_x_image_and_pixmap (f, width, height, 1,
-				       &mask_img, &img->mask))
-    {
-      x_destroy_x_image (ximg);
-      DeleteObject (img->pixmap);
-      img->pixmap = 0;
-      goto error;
-    }
-  /* Fill the X image and mask from PNG data.  */
-#if 0 /* TODO: Color tables.  */
-  init_color_table ();
-#endif
-
-  for (y = 0; y < height; ++y)
-    {
-      png_byte *p = rows[y];
-
-      for (x = 0; x < width; ++x)
-	{
-	  unsigned r, g, b;
-
-	  r = *p++;
-	  g = *p++;
-	  b = *p++;
-#if 0 /* TODO: Color tables.  */
-	  XPutPixel (ximg, x, y, lookup_rgb_color (f, r, g, b));
-#else
-	  XPutPixel (ximg, x, y, PALETTERGB (r, g, b));
-#endif
-	  /* An alpha channel, aka mask channel, associates variable
-	     transparency with an image.  Where other image formats
-	     support binary transparency---fully transparent or fully
-	     opaque---PNG allows up to 254 levels of partial transparency.
-	     The PNG library implements partial transparency by combining
-	     the image with a specified background color.
-
-	     I'm not sure how to handle this here nicely: because the
-	     background on which the image is displayed may change, for
-	     real alpha channel support, it would be necessary to create
-	     a new image for each possible background.
-
-	     What I'm doing now is that a mask is created if we have
-	     boolean transparency information.  Otherwise I'm using
-	     the frame's background color to combine the image with.  */
-
-	  if (channels == 4)
-	    {
-	      if (mask_img)
-		XPutPixel (mask_img, x, y, *p > 0);
-	      ++p;
-	    }
-	}
-    }
-
-  if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
-    /* Set IMG's background color from the PNG image, unless the user
-       overrode it.  */
-    {
-      png_color_16 *bg;
-      if (fn_png_get_bKGD (png_ptr, info_ptr, &bg))
-	{
-#if 0 /* TODO: Color tables.  */
-	  img->background = lookup_rgb_color (f, bg->red, bg->green, bg->blue);
-#else
-	  img->background = PALETTERGB (bg->red / 256, bg->green / 256,
-					bg->blue / 256);
-#endif
-	  img->background_valid = 1;
-	}
-    }
-
-#if 0 /* TODO: Color tables.  */
-  /* Remember colors allocated for this image.  */
-  img->colors = colors_in_color_table (&img->ncolors);
-  free_color_table ();
-#endif
-
-  /* Clean up.  */
-  fn_png_destroy_read_struct (&png_ptr, &info_ptr, &end_info);
-  xfree (rows);
-  xfree (pixels);
-
-  img->width = width;
-  img->height = height;
-
-  /* Maybe fill in the background field while we have ximg handy. */
-  IMAGE_BACKGROUND (img, f, ximg);
-
-  /* Put the image into the pixmap, then free the X image and its buffer.  */
-  x_put_x_image (f, ximg, img->pixmap, width, height);
-  x_destroy_x_image (ximg);
-
-  /* Same for the mask.  */
-  if (mask_img)
-    {
-      /* Fill in the background_transparent field while we have the mask
-	 handy. */
-      image_background_transparent (img, f, mask_img);
-
-      x_put_x_image (f, mask_img, img->mask, img->width, img->height);
-      x_destroy_x_image (mask_img);
-    }
-
-  UNGCPRO;
-  return 1;
-}
-
-#endif /* HAVE_PNG != 0 */
-
-
-
-/***********************************************************************
-				 JPEG
- ***********************************************************************/
-
-#if HAVE_JPEG
-
-/* Work around a warning about HAVE_STDLIB_H being redefined in
-   jconfig.h.  */
-#ifdef HAVE_STDLIB_H
-#define HAVE_STDLIB_H_1
-#undef HAVE_STDLIB_H
-#endif /* HAVE_STLIB_H */
-
-#include <jpeglib.h>
-#include <jerror.h>
-#include <setjmp.h>
-
-#ifdef HAVE_STLIB_H_1
-#define HAVE_STDLIB_H 1
-#endif
-
-static int jpeg_image_p P_ ((Lisp_Object object));
-static int jpeg_load P_ ((struct frame *f, struct image *img));
-
-/* The symbol `jpeg' identifying images of this type.  */
-
-Lisp_Object Qjpeg;
-
-/* Indices of image specification fields in gs_format, below.  */
-
-enum jpeg_keyword_index
-{
-  JPEG_TYPE,
-  JPEG_DATA,
-  JPEG_FILE,
-  JPEG_ASCENT,
-  JPEG_MARGIN,
-  JPEG_RELIEF,
-  JPEG_ALGORITHM,
-  JPEG_HEURISTIC_MASK,
-  JPEG_MASK,
-  JPEG_BACKGROUND,
-  JPEG_LAST
-};
-
-/* Vector of image_keyword structures describing the format
-   of valid user-defined image specifications.  */
-
-static struct image_keyword jpeg_format[JPEG_LAST] =
-{
-  {":type",		IMAGE_SYMBOL_VALUE,			1},
-  {":data",		IMAGE_STRING_VALUE,			0},
-  {":file",		IMAGE_STRING_VALUE,			0},
-  {":ascent",		IMAGE_ASCENT_VALUE,			0},
-  {":margin",		IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,	0},
-  {":relief",		IMAGE_INTEGER_VALUE,			0},
-  {":conversions",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":heuristic-mask",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":mask",		IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":background",	IMAGE_STRING_OR_NIL_VALUE,		0}
-};
-
-/* Structure describing the image type `jpeg'.  */
-
-static struct image_type jpeg_type =
-{
-  &Qjpeg,
-  jpeg_image_p,
-  jpeg_load,
-  x_clear_image,
-  NULL
-};
-
-
-/* JPEG library details.  */
-DEF_IMGLIB_FN (jpeg_CreateDecompress);
-DEF_IMGLIB_FN (jpeg_start_decompress);
-DEF_IMGLIB_FN (jpeg_finish_decompress);
-DEF_IMGLIB_FN (jpeg_destroy_decompress);
-DEF_IMGLIB_FN (jpeg_read_header);
-DEF_IMGLIB_FN (jpeg_read_scanlines);
-DEF_IMGLIB_FN (jpeg_stdio_src);
-DEF_IMGLIB_FN (jpeg_std_error);
-DEF_IMGLIB_FN (jpeg_resync_to_restart);
-
-static int
-init_jpeg_functions (library)
-     HMODULE library;
-{
-  LOAD_IMGLIB_FN (library, jpeg_finish_decompress);
-  LOAD_IMGLIB_FN (library, jpeg_read_scanlines);
-  LOAD_IMGLIB_FN (library, jpeg_start_decompress);
-  LOAD_IMGLIB_FN (library, jpeg_read_header);
-  LOAD_IMGLIB_FN (library, jpeg_stdio_src);
-  LOAD_IMGLIB_FN (library, jpeg_CreateDecompress);
-  LOAD_IMGLIB_FN (library, jpeg_destroy_decompress);
-  LOAD_IMGLIB_FN (library, jpeg_std_error);
-  LOAD_IMGLIB_FN (library, jpeg_resync_to_restart);
-  return 1;
-}
-
-/* Wrapper since we can't directly assign the function pointer
-   to another function pointer that was declared more completely easily.  */
-static boolean
-jpeg_resync_to_restart_wrapper(cinfo, desired)
-     j_decompress_ptr cinfo;
-     int desired;
-{
-  return fn_jpeg_resync_to_restart (cinfo, desired);
-}
-
-
-/* Return non-zero if OBJECT is a valid JPEG image specification.  */
-
-static int
-jpeg_image_p (object)
-     Lisp_Object object;
-{
-  struct image_keyword fmt[JPEG_LAST];
-
-  bcopy (jpeg_format, fmt, sizeof fmt);
-
-  if (!parse_image_spec (object, fmt, JPEG_LAST, Qjpeg))
-    return 0;
-
-  /* Must specify either the :data or :file keyword.  */
-  return fmt[JPEG_FILE].count + fmt[JPEG_DATA].count == 1;
-}
-
-
-struct my_jpeg_error_mgr
-{
-  struct jpeg_error_mgr pub;
-  jmp_buf setjmp_buffer;
-};
-
-
-static void
-my_error_exit (cinfo)
-     j_common_ptr cinfo;
-{
-  struct my_jpeg_error_mgr *mgr = (struct my_jpeg_error_mgr *) cinfo->err;
-  longjmp (mgr->setjmp_buffer, 1);
-}
-
-
-/* Init source method for JPEG data source manager.  Called by
-   jpeg_read_header() before any data is actually read.  See
-   libjpeg.doc from the JPEG lib distribution.  */
-
-static void
-our_init_source (cinfo)
-     j_decompress_ptr cinfo;
-{
-}
-
-
-/* Fill input buffer method for JPEG data source manager.  Called
-   whenever more data is needed.  We read the whole image in one step,
-   so this only adds a fake end of input marker at the end.  */
-
-static boolean
-our_fill_input_buffer (cinfo)
-     j_decompress_ptr cinfo;
-{
-  /* Insert a fake EOI marker.  */
-  struct jpeg_source_mgr *src = cinfo->src;
-  static JOCTET buffer[2];
-
-  buffer[0] = (JOCTET) 0xFF;
-  buffer[1] = (JOCTET) JPEG_EOI;
-
-  src->next_input_byte = buffer;
-  src->bytes_in_buffer = 2;
-  return TRUE;
-}
-
-
-/* Method to skip over NUM_BYTES bytes in the image data.  CINFO->src
-   is the JPEG data source manager.  */
-
-static void
-our_skip_input_data (cinfo, num_bytes)
-     j_decompress_ptr cinfo;
-     long num_bytes;
-{
-  struct jpeg_source_mgr *src = (struct jpeg_source_mgr *) cinfo->src;
-
-  if (src)
-    {
-      if (num_bytes > src->bytes_in_buffer)
-	ERREXIT (cinfo, JERR_INPUT_EOF);
-
-      src->bytes_in_buffer -= num_bytes;
-      src->next_input_byte += num_bytes;
-    }
-}
-
-
-/* Method to terminate data source.  Called by
-   jpeg_finish_decompress() after all data has been processed.  */
-
-static void
-our_term_source (cinfo)
-     j_decompress_ptr cinfo;
-{
-}
-
-
-/* Set up the JPEG lib for reading an image from DATA which contains
-   LEN bytes.  CINFO is the decompression info structure created for
-   reading the image.  */
-
-static void
-jpeg_memory_src (cinfo, data, len)
-     j_decompress_ptr cinfo;
-     JOCTET *data;
-     unsigned int len;
-{
-  struct jpeg_source_mgr *src;
-
-  if (cinfo->src == NULL)
-    {
-      /* First time for this JPEG object?  */
-      cinfo->src = (struct jpeg_source_mgr *)
-	(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
-				    sizeof (struct jpeg_source_mgr));
-      src = (struct jpeg_source_mgr *) cinfo->src;
-      src->next_input_byte = data;
-    }
-
-  src = (struct jpeg_source_mgr *) cinfo->src;
-  src->init_source = our_init_source;
-  src->fill_input_buffer = our_fill_input_buffer;
-  src->skip_input_data = our_skip_input_data;
-  src->resync_to_restart = jpeg_resync_to_restart_wrapper; /* Use default method.  */
-  src->term_source = our_term_source;
-  src->bytes_in_buffer = len;
-  src->next_input_byte = data;
-}
-
-
-/* Load image IMG for use on frame F.  Patterned after example.c
-   from the JPEG lib.  */
-
-static int
-jpeg_load (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  struct jpeg_decompress_struct cinfo;
-  struct my_jpeg_error_mgr mgr;
-  Lisp_Object file, specified_file;
-  Lisp_Object specified_data;
-  FILE * volatile fp = NULL;
-  JSAMPARRAY buffer;
-  int row_stride, x, y;
-  XImage *ximg = NULL;
-  int rc;
-  unsigned long *colors;
-  int width, height;
-  struct gcpro gcpro1;
-
-  /* Open the JPEG file.  */
-  specified_file = image_spec_value (img->spec, QCfile, NULL);
-  specified_data = image_spec_value (img->spec, QCdata, NULL);
-  file = Qnil;
-  GCPRO1 (file);
-
-  if (NILP (specified_data))
-    {
-      file = x_find_image_file (specified_file);
-      if (!STRINGP (file))
-	{
-	  image_error ("Cannot find image file `%s'", specified_file, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-
-      fp = fopen (SDATA (file), "rb");
-      if (fp == NULL)
-	{
-	  image_error ("Cannot open `%s'", file, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-    }
-
-  /* Customize libjpeg's error handling to call my_error_exit when an
-     error is detected.  This function will perform a longjmp.  */
-  cinfo.err = fn_jpeg_std_error (&mgr.pub);
-  mgr.pub.error_exit = my_error_exit;
-
-  if ((rc = setjmp (mgr.setjmp_buffer)) != 0)
-    {
-      if (rc == 1)
-	{
-	  /* Called from my_error_exit.  Display a JPEG error.  */
-	  char buffer[JMSG_LENGTH_MAX];
-	  cinfo.err->format_message ((j_common_ptr) &cinfo, buffer);
-	  image_error ("Error reading JPEG image `%s': %s", img->spec,
-		       build_string (buffer));
-	}
-
-      /* Close the input file and destroy the JPEG object.  */
-      if (fp)
-	fclose ((FILE *) fp);
-      fn_jpeg_destroy_decompress (&cinfo);
-
-      /* If we already have an XImage, free that.  */
-      x_destroy_x_image (ximg);
-
-      /* Free pixmap and colors.  */
-      x_clear_image (f, img);
-
-      UNGCPRO;
-      return 0;
-    }
-
-  /* Create the JPEG decompression object.  Let it read from fp.
-	 Read the JPEG image header.  */
-  fn_jpeg_CreateDecompress (&cinfo, JPEG_LIB_VERSION, sizeof (cinfo));
-
-  if (NILP (specified_data))
-    fn_jpeg_stdio_src (&cinfo, (FILE *) fp);
-  else
-    jpeg_memory_src (&cinfo, SDATA (specified_data),
-		     SBYTES (specified_data));
-
-  fn_jpeg_read_header (&cinfo, TRUE);
-
-  /* Customize decompression so that color quantization will be used.
-	 Start decompression.  */
-  cinfo.quantize_colors = TRUE;
-  fn_jpeg_start_decompress (&cinfo);
-  width = img->width = cinfo.output_width;
-  height = img->height = cinfo.output_height;
-
-  /* Create X image and pixmap.  */
-  if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
-    longjmp (mgr.setjmp_buffer, 2);
-
-  /* Allocate colors.  When color quantization is used,
-     cinfo.actual_number_of_colors has been set with the number of
-     colors generated, and cinfo.colormap is a two-dimensional array
-     of color indices in the range 0..cinfo.actual_number_of_colors.
-     No more than 255 colors will be generated.  */
-  {
-    int i, ir, ig, ib;
-
-    if (cinfo.out_color_components > 2)
-      ir = 0, ig = 1, ib = 2;
-    else if (cinfo.out_color_components > 1)
-      ir = 0, ig = 1, ib = 0;
-    else
-      ir = 0, ig = 0, ib = 0;
-
-#if 0 /* TODO: Color tables.  */
-    /* Use the color table mechanism because it handles colors that
-       cannot be allocated nicely.  Such colors will be replaced with
-       a default color, and we don't have to care about which colors
-       can be freed safely, and which can't.  */
-    init_color_table ();
-#endif
-    colors = (unsigned long *) alloca (cinfo.actual_number_of_colors
-				       * sizeof *colors);
-
-    for (i = 0; i < cinfo.actual_number_of_colors; ++i)
-      {
-	int r = cinfo.colormap[ir][i];
-	int g = cinfo.colormap[ig][i];
-	int b = cinfo.colormap[ib][i];
-#if 0 /* TODO: Color tables.  */
-	colors[i] = lookup_rgb_color (f, r, g, b);
-#else
-	colors[i] = PALETTERGB (r, g, b);
-#endif
-      }
-
-#if 0 /* TODO: Color tables.  */
-    /* Remember those colors actually allocated.  */
-    img->colors = colors_in_color_table (&img->ncolors);
-    free_color_table ();
-#endif
-  }
-
-  /* Read pixels.  */
-  row_stride = width * cinfo.output_components;
-  buffer = cinfo.mem->alloc_sarray ((j_common_ptr) &cinfo, JPOOL_IMAGE,
-				    row_stride, 1);
-  for (y = 0; y < height; ++y)
-    {
-      fn_jpeg_read_scanlines (&cinfo, buffer, 1);
-      for (x = 0; x < cinfo.output_width; ++x)
-	XPutPixel (ximg, x, y, colors[buffer[0][x]]);
-    }
-
-  /* Clean up.  */
-  fn_jpeg_finish_decompress (&cinfo);
-  fn_jpeg_destroy_decompress (&cinfo);
-  if (fp)
-    fclose ((FILE *) fp);
-
-  /* Maybe fill in the background field while we have ximg handy. */
-  if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
-    IMAGE_BACKGROUND (img, f, ximg);
-
-  /* Put the image into the pixmap.  */
-  x_put_x_image (f, ximg, img->pixmap, width, height);
-  x_destroy_x_image (ximg);
-  UNGCPRO;
-  return 1;
-}
-
-#endif /* HAVE_JPEG */
-
-
-
-/***********************************************************************
-				 TIFF
- ***********************************************************************/
-
-#if HAVE_TIFF
-
-#include <tiffio.h>
-
-static int tiff_image_p P_ ((Lisp_Object object));
-static int tiff_load P_ ((struct frame *f, struct image *img));
-
-/* The symbol `tiff' identifying images of this type.  */
-
-Lisp_Object Qtiff;
-
-/* Indices of image specification fields in tiff_format, below.  */
-
-enum tiff_keyword_index
-{
-  TIFF_TYPE,
-  TIFF_DATA,
-  TIFF_FILE,
-  TIFF_ASCENT,
-  TIFF_MARGIN,
-  TIFF_RELIEF,
-  TIFF_ALGORITHM,
-  TIFF_HEURISTIC_MASK,
-  TIFF_MASK,
-  TIFF_BACKGROUND,
-  TIFF_LAST
-};
-
-/* Vector of image_keyword structures describing the format
-   of valid user-defined image specifications.  */
-
-static struct image_keyword tiff_format[TIFF_LAST] =
-{
-  {":type",		IMAGE_SYMBOL_VALUE,			1},
-  {":data",		IMAGE_STRING_VALUE,			0},
-  {":file",		IMAGE_STRING_VALUE,			0},
-  {":ascent",		IMAGE_ASCENT_VALUE,			0},
-  {":margin",		IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,	0},
-  {":relief",		IMAGE_INTEGER_VALUE,			0},
-  {":conversions",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":heuristic-mask",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":mask",		IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":background",	IMAGE_STRING_OR_NIL_VALUE,		0}
-};
-
-/* Structure describing the image type `tiff'.  */
-
-static struct image_type tiff_type =
-{
-  &Qtiff,
-  tiff_image_p,
-  tiff_load,
-  x_clear_image,
-  NULL
-};
-
-/* TIFF library details.  */
-DEF_IMGLIB_FN (TIFFSetErrorHandler);
-DEF_IMGLIB_FN (TIFFSetWarningHandler);
-DEF_IMGLIB_FN (TIFFOpen);
-DEF_IMGLIB_FN (TIFFClientOpen);
-DEF_IMGLIB_FN (TIFFGetField);
-DEF_IMGLIB_FN (TIFFReadRGBAImage);
-DEF_IMGLIB_FN (TIFFClose);
-
-static int
-init_tiff_functions (library)
-     HMODULE library;
-{
-  LOAD_IMGLIB_FN (library, TIFFSetErrorHandler);
-  LOAD_IMGLIB_FN (library, TIFFSetWarningHandler);
-  LOAD_IMGLIB_FN (library, TIFFOpen);
-  LOAD_IMGLIB_FN (library, TIFFClientOpen);
-  LOAD_IMGLIB_FN (library, TIFFGetField);
-  LOAD_IMGLIB_FN (library, TIFFReadRGBAImage);
-  LOAD_IMGLIB_FN (library, TIFFClose);
-  return 1;
-}
-
-/* Return non-zero if OBJECT is a valid TIFF image specification.  */
-
-static int
-tiff_image_p (object)
-     Lisp_Object object;
-{
-  struct image_keyword fmt[TIFF_LAST];
-  bcopy (tiff_format, fmt, sizeof fmt);
-
-  if (!parse_image_spec (object, fmt, TIFF_LAST, Qtiff))
-    return 0;
-
-  /* Must specify either the :data or :file keyword.  */
-  return fmt[TIFF_FILE].count + fmt[TIFF_DATA].count == 1;
-}
-
-
-/* Reading from a memory buffer for TIFF images Based on the PNG
-   memory source, but we have to provide a lot of extra functions.
-   Blah.
-
-   We really only need to implement read and seek, but I am not
-   convinced that the TIFF library is smart enough not to destroy
-   itself if we only hand it the function pointers we need to
-   override.  */
-
-typedef struct
-{
-  unsigned char *bytes;
-  size_t len;
-  int index;
-}
-tiff_memory_source;
-
-static size_t
-tiff_read_from_memory (data, buf, size)
-     thandle_t data;
-     tdata_t buf;
-     tsize_t size;
-{
-  tiff_memory_source *src = (tiff_memory_source *) data;
-
-  if (size > src->len - src->index)
-    return (size_t) -1;
-  bcopy (src->bytes + src->index, buf, size);
-  src->index += size;
-  return size;
-}
-
-static size_t
-tiff_write_from_memory (data, buf, size)
-     thandle_t data;
-     tdata_t buf;
-     tsize_t size;
-{
-  return (size_t) -1;
-}
-
-static toff_t
-tiff_seek_in_memory (data, off, whence)
-     thandle_t data;
-     toff_t off;
-     int whence;
-{
-  tiff_memory_source *src = (tiff_memory_source *) data;
-  int idx;
-
-  switch (whence)
-    {
-    case SEEK_SET:		/* Go from beginning of source.  */
-      idx = off;
-      break;
-
-    case SEEK_END:		/* Go from end of source.  */
-      idx = src->len + off;
-      break;
-
-    case SEEK_CUR:		/* Go from current position.  */
-      idx = src->index + off;
-      break;
-
-    default:			/* Invalid `whence'.   */
-      return -1;
-    }
-
-  if (idx > src->len || idx < 0)
-    return -1;
-
-  src->index = idx;
-  return src->index;
-}
-
-static int
-tiff_close_memory (data)
-     thandle_t data;
-{
-  /* NOOP */
-  return 0;
-}
-
-static int
-tiff_mmap_memory (data, pbase, psize)
-     thandle_t data;
-     tdata_t *pbase;
-     toff_t *psize;
-{
-  /* It is already _IN_ memory. */
-  return 0;
-}
-
-static void
-tiff_unmap_memory (data, base, size)
-     thandle_t data;
-     tdata_t base;
-     toff_t size;
-{
-  /* We don't need to do this. */
-}
-
-static toff_t
-tiff_size_of_memory (data)
-     thandle_t data;
-{
-  return ((tiff_memory_source *) data)->len;
-}
-
-
-static void
-tiff_error_handler (title, format, ap)
-     const char *title, *format;
-     va_list ap;
-{
-  char buf[512];
-  int len;
-
-  len = sprintf (buf, "TIFF error: %s ", title);
-  vsprintf (buf + len, format, ap);
-  add_to_log (buf, Qnil, Qnil);
-}
-
-
-static void
-tiff_warning_handler (title, format, ap)
-     const char *title, *format;
-     va_list ap;
-{
-  char buf[512];
-  int len;
-
-  len = sprintf (buf, "TIFF warning: %s ", title);
-  vsprintf (buf + len, format, ap);
-  add_to_log (buf, Qnil, Qnil);
-}
-
-
-/* Load TIFF image IMG for use on frame F.  Value is non-zero if
-   successful.  */
-
-static int
-tiff_load (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  Lisp_Object file, specified_file;
-  Lisp_Object specified_data;
-  TIFF *tiff;
-  int width, height, x, y;
-  uint32 *buf;
-  int rc;
-  XImage *ximg;
-  struct gcpro gcpro1;
-  tiff_memory_source memsrc;
-
-  specified_file = image_spec_value (img->spec, QCfile, NULL);
-  specified_data = image_spec_value (img->spec, QCdata, NULL);
-  file = Qnil;
-  GCPRO1 (file);
-
-  fn_TIFFSetErrorHandler (tiff_error_handler);
-  fn_TIFFSetWarningHandler (tiff_warning_handler);
-
-  if (NILP (specified_data))
-    {
-      /* Read from a file */
-      file = x_find_image_file (specified_file);
-      if (!STRINGP (file))
-	{
-	  image_error ("Cannot find image file `%s'", file, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-
-      /* Try to open the image file.  */
-      tiff = fn_TIFFOpen (SDATA (file), "r");
-      if (tiff == NULL)
-	{
-	  image_error ("Cannot open `%s'", file, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-    }
-  else
-    {
-      /* Memory source! */
-      memsrc.bytes = SDATA (specified_data);
-      memsrc.len = SBYTES (specified_data);
-      memsrc.index = 0;
-
-      tiff = fn_TIFFClientOpen ("memory_source", "r", &memsrc,
-                                (TIFFReadWriteProc) tiff_read_from_memory,
-                                (TIFFReadWriteProc) tiff_write_from_memory,
-                                tiff_seek_in_memory,
-                                tiff_close_memory,
-                                tiff_size_of_memory,
-                                tiff_mmap_memory,
-                                tiff_unmap_memory);
-
-      if (!tiff)
-	{
-	  image_error ("Cannot open memory source for `%s'", img->spec, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-    }
-
-  /* Get width and height of the image, and allocate a raster buffer
-     of width x height 32-bit values.  */
-  fn_TIFFGetField (tiff, TIFFTAG_IMAGEWIDTH, &width);
-  fn_TIFFGetField (tiff, TIFFTAG_IMAGELENGTH, &height);
-  buf = (uint32 *) xmalloc (width * height * sizeof *buf);
-
-  rc = fn_TIFFReadRGBAImage (tiff, width, height, buf, 0);
-  fn_TIFFClose (tiff);
-  if (!rc)
-    {
-      image_error ("Error reading TIFF image `%s'", img->spec, Qnil);
-      xfree (buf);
-      UNGCPRO;
-      return 0;
-    }
-
-  /* Create the X image and pixmap.  */
-  if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
-    {
-      xfree (buf);
-      UNGCPRO;
-      return 0;
-    }
-
-#if 0 /* TODO: Color tables.  */
-  /* Initialize the color table.  */
-  init_color_table ();
-#endif
-
-  /* Process the pixel raster.  Origin is in the lower-left corner.  */
-  for (y = 0; y < height; ++y)
-    {
-      uint32 *row = buf + y * width;
-
-      for (x = 0; x < width; ++x)
-	{
-	  uint32 abgr = row[x];
-	  int r = TIFFGetR (abgr);
-	  int g = TIFFGetG (abgr);
-	  int b = TIFFGetB (abgr);
-#if 0 /* TODO: Color tables.  */
-	  XPutPixel (ximg, x, height - 1 - y, lookup_rgb_color (f, r, g, b));
-#else
-          XPutPixel (ximg, x, height - 1 - y, PALETTERGB (r, g, b));
-#endif
-	}
-    }
-
-#if 0 /* TODO: Color tables.  */
-  /* Remember the colors allocated for the image.  Free the color table.  */
-  img->colors = colors_in_color_table (&img->ncolors);
-  free_color_table ();
-#endif
-
-  img->width = width;
-  img->height = height;
-
-  /* Maybe fill in the background field while we have ximg handy. */
-  if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
-    IMAGE_BACKGROUND (img, f, ximg);
-
-  /* Put the image into the pixmap, then free the X image and its buffer.  */
-  x_put_x_image (f, ximg, img->pixmap, width, height);
-  x_destroy_x_image (ximg);
-  xfree (buf);
-
-  UNGCPRO;
-  return 1;
-}
-
-#endif /* HAVE_TIFF != 0 */
-
-
-
-/***********************************************************************
-				 GIF
- ***********************************************************************/
-
-#if HAVE_GIF
-
-#define DrawText gif_DrawText
-#include <gif_lib.h>
-#undef DrawText
-
-static int gif_image_p P_ ((Lisp_Object object));
-static int gif_load P_ ((struct frame *f, struct image *img));
-
-/* The symbol `gif' identifying images of this type.  */
-
-Lisp_Object Qgif;
-
-/* Indices of image specification fields in gif_format, below.  */
-
-enum gif_keyword_index
-{
-  GIF_TYPE,
-  GIF_DATA,
-  GIF_FILE,
-  GIF_ASCENT,
-  GIF_MARGIN,
-  GIF_RELIEF,
-  GIF_ALGORITHM,
-  GIF_HEURISTIC_MASK,
-  GIF_MASK,
-  GIF_IMAGE,
-  GIF_BACKGROUND,
-  GIF_LAST
-};
-
-/* Vector of image_keyword structures describing the format
-   of valid user-defined image specifications.  */
-
-static struct image_keyword gif_format[GIF_LAST] =
-{
-  {":type",		IMAGE_SYMBOL_VALUE,			1},
-  {":data",		IMAGE_STRING_VALUE,			0},
-  {":file",		IMAGE_STRING_VALUE,			0},
-  {":ascent",		IMAGE_ASCENT_VALUE,			0},
-  {":margin",		IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,	0},
-  {":relief",		IMAGE_INTEGER_VALUE,			0},
-  {":conversion",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":heuristic-mask",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":mask",		IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":image",		IMAGE_NON_NEGATIVE_INTEGER_VALUE,	0},
-  {":background",	IMAGE_STRING_OR_NIL_VALUE,		0}
-};
-
-/* Structure describing the image type `gif'.  */
-
-static struct image_type gif_type =
-{
-  &Qgif,
-  gif_image_p,
-  gif_load,
-  x_clear_image,
-  NULL
-};
-
-
-/* GIF library details.  */
-DEF_IMGLIB_FN (DGifCloseFile);
-DEF_IMGLIB_FN (DGifSlurp);
-DEF_IMGLIB_FN (DGifOpen);
-DEF_IMGLIB_FN (DGifOpenFileName);
-
-static int
-init_gif_functions (library)
-     HMODULE library;
-{
-  LOAD_IMGLIB_FN (library, DGifCloseFile);
-  LOAD_IMGLIB_FN (library, DGifSlurp);
-  LOAD_IMGLIB_FN (library, DGifOpen);
-  LOAD_IMGLIB_FN (library, DGifOpenFileName);
-  return 1;
-}
-
-
-/* Return non-zero if OBJECT is a valid GIF image specification.  */
-
-static int
-gif_image_p (object)
-     Lisp_Object object;
-{
-  struct image_keyword fmt[GIF_LAST];
-  bcopy (gif_format, fmt, sizeof fmt);
-
-  if (!parse_image_spec (object, fmt, GIF_LAST, Qgif))
-    return 0;
-
-  /* Must specify either the :data or :file keyword.  */
-  return fmt[GIF_FILE].count + fmt[GIF_DATA].count == 1;
-}
-
-/* Reading a GIF image from memory
-   Based on the PNG memory stuff to a certain extent. */
-
-typedef struct
-{
-  unsigned char *bytes;
-  size_t len;
-  int index;
-}
-gif_memory_source;
-
-/* Make the current memory source available to gif_read_from_memory.
-   It's done this way because not all versions of libungif support
-   a UserData field in the GifFileType structure.  */
-static gif_memory_source *current_gif_memory_src;
-
-static int
-gif_read_from_memory (file, buf, len)
-     GifFileType *file;
-     GifByteType *buf;
-     int len;
-{
-  gif_memory_source *src = current_gif_memory_src;
-
-  if (len > src->len - src->index)
-    return -1;
-
-  bcopy (src->bytes + src->index, buf, len);
-  src->index += len;
-  return len;
-}
-
-
-/* Load GIF image IMG for use on frame F.  Value is non-zero if
-   successful.  */
-
-static int
-gif_load (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  Lisp_Object file, specified_file;
-  Lisp_Object specified_data;
-  int rc, width, height, x, y, i;
-  XImage *ximg;
-  ColorMapObject *gif_color_map;
-  unsigned long pixel_colors[256];
-  GifFileType *gif;
-  struct gcpro gcpro1;
-  Lisp_Object image;
-  int ino, image_left, image_top, image_width, image_height;
-  gif_memory_source memsrc;
-  unsigned char *raster;
-
-  specified_file = image_spec_value (img->spec, QCfile, NULL);
-  specified_data = image_spec_value (img->spec, QCdata, NULL);
-  file = Qnil;
-  GCPRO1 (file);
-
-  if (NILP (specified_data))
-    {
-      file = x_find_image_file (specified_file);
-      if (!STRINGP (file))
-        {
-          image_error ("Cannot find image file `%s'", specified_file, Qnil);
-          UNGCPRO;
-          return 0;
-        }
-
-      /* Open the GIF file.  */
-      gif = fn_DGifOpenFileName (SDATA (file));
-      if (gif == NULL)
-        {
-          image_error ("Cannot open `%s'", file, Qnil);
-          UNGCPRO;
-          return 0;
-        }
-    }
-  else
-    {
-      /* Read from memory! */
-      current_gif_memory_src = &memsrc;
-      memsrc.bytes = SDATA (specified_data);
-      memsrc.len = SBYTES (specified_data);
-      memsrc.index = 0;
-
-      gif = fn_DGifOpen(&memsrc, gif_read_from_memory);
-      if (!gif)
-	{
-	  image_error ("Cannot open memory source `%s'", img->spec, Qnil);
-	  UNGCPRO;
-	  return 0;
-	}
-    }
-
-  /* Read entire contents.  */
-  rc = fn_DGifSlurp (gif);
-  if (rc == GIF_ERROR)
-    {
-      image_error ("Error reading `%s'", img->spec, Qnil);
-      fn_DGifCloseFile (gif);
-      UNGCPRO;
-      return 0;
-    }
-
-  image = image_spec_value (img->spec, QCindex, NULL);
-  ino = INTEGERP (image) ? XFASTINT (image) : 0;
-  if (ino >= gif->ImageCount)
-    {
-      image_error ("Invalid image number `%s' in image `%s'",
-                   image, img->spec);
-      fn_DGifCloseFile (gif);
-      UNGCPRO;
-      return 0;
-    }
-
-  width = img->width = max (gif->SWidth, gif->Image.Left + gif->Image.Width);
-  height = img->height = max (gif->SHeight, gif->Image.Top + gif->Image.Height);
-
-  /* Create the X image and pixmap.  */
-  if (!x_create_x_image_and_pixmap (f, width, height, 0, &ximg, &img->pixmap))
-    {
-      fn_DGifCloseFile (gif);
-      UNGCPRO;
-      return 0;
-    }
-
-  /* Allocate colors.  */
-  gif_color_map = gif->SavedImages[ino].ImageDesc.ColorMap;
-  if (!gif_color_map)
-    gif_color_map = gif->SColorMap;
-#if 0 /* TODO: Color tables */
-  init_color_table ();
-#endif
-  bzero (pixel_colors, sizeof pixel_colors);
-
-  for (i = 0; i < gif_color_map->ColorCount; ++i)
-    {
-      int r = gif_color_map->Colors[i].Red;
-      int g = gif_color_map->Colors[i].Green;
-      int b = gif_color_map->Colors[i].Blue;
-#if 0 /* TODO: Color tables */
-      pixel_colors[i] = lookup_rgb_color (f, r, g, b);
-#else
-      pixel_colors[i] = PALETTERGB (r, g, b);
-#endif
-    }
-
-#if 0 /* TODO: Color tables */
-  img->colors = colors_in_color_table (&img->ncolors);
-  free_color_table ();
-#endif
-
-  /* Clear the part of the screen image that are not covered by
-     the image from the GIF file.  Full animated GIF support
-     requires more than can be done here (see the gif89 spec,
-     disposal methods).  Let's simply assume that the part
-     not covered by a sub-image is in the frame's background color.  */
-  image_top = gif->SavedImages[ino].ImageDesc.Top;
-  image_left = gif->SavedImages[ino].ImageDesc.Left;
-  image_width = gif->SavedImages[ino].ImageDesc.Width;
-  image_height = gif->SavedImages[ino].ImageDesc.Height;
-
-  for (y = 0; y < image_top; ++y)
-    for (x = 0; x < width; ++x)
-      XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f));
-
-  for (y = image_top + image_height; y < height; ++y)
-    for (x = 0; x < width; ++x)
-      XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f));
-
-  for (y = image_top; y < image_top + image_height; ++y)
-    {
-      for (x = 0; x < image_left; ++x)
-	XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f));
-      for (x = image_left + image_width; x < width; ++x)
-	XPutPixel (ximg, x, y, FRAME_BACKGROUND_PIXEL (f));
-    }
-
-  /* Read the GIF image into the X image.  We use a local variable
-     `raster' here because RasterBits below is a char *, and invites
-     problems with bytes >= 0x80.  */
-  raster = (unsigned char *) gif->SavedImages[ino].RasterBits;
-
-  if (gif->SavedImages[ino].ImageDesc.Interlace)
-    {
-      static int interlace_start[] = {0, 4, 2, 1};
-      static int interlace_increment[] = {8, 8, 4, 2};
-      int pass;
-      int row = interlace_start[0];
-
-      pass = 0;
-
-      for (y = 0; y < image_height; y++)
-	{
-	  if (row >= image_height)
-	    {
-	      row = interlace_start[++pass];
-	      while (row >= image_height)
-		row = interlace_start[++pass];
-	    }
-
-	  for (x = 0; x < image_width; x++)
-	    {
-	      int i = raster[(y * image_width) + x];
-	      XPutPixel (ximg, x + image_left, row + image_top,
-			 pixel_colors[i]);
-	    }
-
-	  row += interlace_increment[pass];
-	}
-    }
-  else
-    {
-      for (y = 0; y < image_height; ++y)
-	for (x = 0; x < image_width; ++x)
-	  {
-	    int i = raster[y* image_width + x];
-	    XPutPixel (ximg, x + image_left, y + image_top, pixel_colors[i]);
-	  }
-    }
-
-  fn_DGifCloseFile (gif);
-
-  /* Maybe fill in the background field while we have ximg handy. */
-  if (NILP (image_spec_value (img->spec, QCbackground, NULL)))
-    IMAGE_BACKGROUND (img, f, ximg);
-
-  /* Put the image into the pixmap, then free the X image and its buffer.  */
-  x_put_x_image (f, ximg, img->pixmap, width, height);
-  x_destroy_x_image (ximg);
-
-  UNGCPRO;
-  return 1;
-}
-
-#endif /* HAVE_GIF != 0 */
-
-
-
-/***********************************************************************
-				Ghostscript
- ***********************************************************************/
-
-Lisp_Object Qpostscript;
-
-/* Keyword symbols.  */
-
-Lisp_Object QCloader, QCbounding_box, QCpt_width, QCpt_height;
-
-#ifdef HAVE_GHOSTSCRIPT
-static int gs_image_p P_ ((Lisp_Object object));
-static int gs_load P_ ((struct frame *f, struct image *img));
-static void gs_clear_image P_ ((struct frame *f, struct image *img));
-
-/* The symbol `postscript' identifying images of this type.  */
-
-/* Keyword symbols.  */
-
-Lisp_Object QCloader, QCbounding_box, QCpt_width, QCpt_height;
-
-/* Indices of image specification fields in gs_format, below.  */
-
-enum gs_keyword_index
-{
-  GS_TYPE,
-  GS_PT_WIDTH,
-  GS_PT_HEIGHT,
-  GS_FILE,
-  GS_LOADER,
-  GS_BOUNDING_BOX,
-  GS_ASCENT,
-  GS_MARGIN,
-  GS_RELIEF,
-  GS_ALGORITHM,
-  GS_HEURISTIC_MASK,
-  GS_MASK,
-  GS_BACKGROUND,
-  GS_LAST
-};
-
-/* Vector of image_keyword structures describing the format
-   of valid user-defined image specifications.  */
-
-static struct image_keyword gs_format[GS_LAST] =
-{
-  {":type",		IMAGE_SYMBOL_VALUE,			1},
-  {":pt-width",		IMAGE_POSITIVE_INTEGER_VALUE,		1},
-  {":pt-height",	IMAGE_POSITIVE_INTEGER_VALUE,		1},
-  {":file",		IMAGE_STRING_VALUE,			1},
-  {":loader",		IMAGE_FUNCTION_VALUE,			0},
-  {":bounding-box",	IMAGE_DONT_CHECK_VALUE_TYPE,		1},
-  {":ascent",		IMAGE_ASCENT_VALUE,			0},
-  {":margin",		IMAGE_POSITIVE_INTEGER_VALUE_OR_PAIR,	0},
-  {":relief",		IMAGE_INTEGER_VALUE,			0},
-  {":conversion",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":heuristic-mask",	IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":mask",		IMAGE_DONT_CHECK_VALUE_TYPE,		0},
-  {":background",	IMAGE_STRING_OR_NIL_VALUE,		0}
-};
-
-/* Structure describing the image type `ghostscript'.  */
-
-static struct image_type gs_type =
-{
-  &Qpostscript,
-  gs_image_p,
-  gs_load,
-  gs_clear_image,
-  NULL
-};
-
-
-/* Free X resources of Ghostscript image IMG which is used on frame F.  */
-
-static void
-gs_clear_image (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  /* IMG->data.ptr_val may contain a recorded colormap.  */
-  xfree (img->data.ptr_val);
-  x_clear_image (f, img);
-}
-
-
-/* Return non-zero if OBJECT is a valid Ghostscript image
-   specification.  */
-
-static int
-gs_image_p (object)
-     Lisp_Object object;
-{
-  struct image_keyword fmt[GS_LAST];
-  Lisp_Object tem;
-  int i;
-
-  bcopy (gs_format, fmt, sizeof fmt);
-
-  if (!parse_image_spec (object, fmt, GS_LAST, Qpostscript))
-    return 0;
-
-  /* Bounding box must be a list or vector containing 4 integers.  */
-  tem = fmt[GS_BOUNDING_BOX].value;
-  if (CONSP (tem))
-    {
-      for (i = 0; i < 4; ++i, tem = XCDR (tem))
-	if (!CONSP (tem) || !INTEGERP (XCAR (tem)))
-	  return 0;
-      if (!NILP (tem))
-	return 0;
-    }
-  else if (VECTORP (tem))
-    {
-      if (XVECTOR (tem)->size != 4)
-	return 0;
-      for (i = 0; i < 4; ++i)
-	if (!INTEGERP (XVECTOR (tem)->contents[i]))
-	  return 0;
-    }
-  else
-    return 0;
-
-  return 1;
-}
-
-
-/* Load Ghostscript image IMG for use on frame F.  Value is non-zero
-   if successful.  */
-
-static int
-gs_load (f, img)
-     struct frame *f;
-     struct image *img;
-{
-  char buffer[100];
-  Lisp_Object window_and_pixmap_id = Qnil, loader, pt_height, pt_width;
-  struct gcpro gcpro1, gcpro2;
-  Lisp_Object frame;
-  double in_width, in_height;
-  Lisp_Object pixel_colors = Qnil;
-
-  /* Compute pixel size of pixmap needed from the given size in the
-     image specification.  Sizes in the specification are in pt.  1 pt
-     = 1/72 in, xdpi and ydpi are stored in the frame's X display
-     info.  */
-  pt_width = image_spec_value (img->spec, QCpt_width, NULL);
-  in_width = XFASTINT (pt_width) / 72.0;
-  img->width = in_width * FRAME_W32_DISPLAY_INFO (f)->resx;
-  pt_height = image_spec_value (img->spec, QCpt_height, NULL);
-  in_height = XFASTINT (pt_height) / 72.0;
-  img->height = in_height * FRAME_W32_DISPLAY_INFO (f)->resy;
-
-  /* Create the pixmap.  */
-  BLOCK_INPUT;
-  xassert (img->pixmap == 0);
-  img->pixmap = XCreatePixmap (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
-			       img->width, img->height,
-			       one_w32_display_info.n_cbits);
-  UNBLOCK_INPUT;
-
-  if (!img->pixmap)
-    {
-      image_error ("Unable to create pixmap for `%s'", img->spec, Qnil);
-      return 0;
-    }
-
-  /* Call the loader to fill the pixmap.  It returns a process object
-     if successful.  We do not record_unwind_protect here because
-     other places in redisplay like calling window scroll functions
-     don't either.  Let the Lisp loader use `unwind-protect' instead.  */
-  GCPRO2 (window_and_pixmap_id, pixel_colors);
-
-  sprintf (buffer, "%lu %lu",
-	   (unsigned long) FRAME_W32_WINDOW (f),
-	   (unsigned long) img->pixmap);
-  window_and_pixmap_id = build_string (buffer);
-
-  sprintf (buffer, "%lu %lu",
-	   FRAME_FOREGROUND_PIXEL (f),
-	   FRAME_BACKGROUND_PIXEL (f));
-  pixel_colors = build_string (buffer);
-
-  XSETFRAME (frame, f);
-  loader = image_spec_value (img->spec, QCloader, NULL);
-  if (NILP (loader))
-    loader = intern ("gs-load-image");
-
-  img->data.lisp_val = call6 (loader, frame, img->spec,
-			      make_number (img->width),
-			      make_number (img->height),
-			      window_and_pixmap_id,
-			      pixel_colors);
-  UNGCPRO;
-  return PROCESSP (img->data.lisp_val);
-}
-
-
-/* Kill the Ghostscript process that was started to fill PIXMAP on
-   frame F.  Called from XTread_socket when receiving an event
-   telling Emacs that Ghostscript has finished drawing.  */
-
-void
-x_kill_gs_process (pixmap, f)
-     Pixmap pixmap;
-     struct frame *f;
-{
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
-  int class, i;
-  struct image *img;
-
-  /* Find the image containing PIXMAP.  */
-  for (i = 0; i < c->used; ++i)
-    if (c->images[i]->pixmap == pixmap)
-      break;
-
-  /* Should someone in between have cleared the image cache, for
-     instance, give up.  */
-  if (i == c->used)
-    return;
-
-  /* Kill the GS process.  We should have found PIXMAP in the image
-     cache and its image should contain a process object.  */
-  img = c->images[i];
-  xassert (PROCESSP (img->data.lisp_val));
-  Fkill_process (img->data.lisp_val, Qnil);
-  img->data.lisp_val = Qnil;
-
-  /* On displays with a mutable colormap, figure out the colors
-     allocated for the image by looking at the pixels of an XImage for
-     img->pixmap.  */
-  class = FRAME_W32_DISPLAY_INFO (f)->visual->class;
-  if (class != StaticColor && class != StaticGray && class != TrueColor)
-    {
-      XImage *ximg;
-
-      BLOCK_INPUT;
-
-      /* Try to get an XImage for img->pixmep.  */
-      ximg = XGetImage (FRAME_W32_DISPLAY (f), img->pixmap,
-			0, 0, img->width, img->height, ~0, ZPixmap);
-      if (ximg)
-	{
-	  int x, y;
-
-	  /* Initialize the color table.  */
-	  init_color_table ();
-
-	  /* For each pixel of the image, look its color up in the
-	     color table.  After having done so, the color table will
-	     contain an entry for each color used by the image.  */
-	  for (y = 0; y < img->height; ++y)
-	    for (x = 0; x < img->width; ++x)
-	      {
-		unsigned long pixel = XGetPixel (ximg, x, y);
-		lookup_pixel_color (f, pixel);
-	      }
-
-	  /* Record colors in the image.  Free color table and XImage.  */
-	  img->colors = colors_in_color_table (&img->ncolors);
-	  free_color_table ();
-	  XDestroyImage (ximg);
-
-#if 0 /* This doesn't seem to be the case.  If we free the colors
-	 here, we get a BadAccess later in x_clear_image when
-	 freeing the colors.  */
-	  /* We have allocated colors once, but Ghostscript has also
-	     allocated colors on behalf of us.  So, to get the
-	     reference counts right, free them once.  */
-	  if (img->ncolors)
-	    x_free_colors (FRAME_W32_DISPLAY (f), cmap,
-			   img->colors, img->ncolors, 0);
-#endif
-	}
-      else
-	image_error ("Cannot get X image of `%s'; colors will not be freed",
-		     img->spec, Qnil);
-
-      UNBLOCK_INPUT;
-    }
-
-  /* Now that we have the pixmap, compute mask and transform the
-     image if requested.  */
-  BLOCK_INPUT;
-  postprocess_image (f, img);
-  UNBLOCK_INPUT;
-}
-
-#endif /* HAVE_GHOSTSCRIPT */
 
 
 /***********************************************************************
@@ -14066,8 +8372,6 @@ syms_of_w32fns ()
   staticpro (&Qsuppress_icon);
   Qundefined_color = intern ("undefined-color");
   staticpro (&Qundefined_color);
-  Qcenter = intern ("center");
-  staticpro (&Qcenter);
   Qcancel_timer = intern ("cancel-timer");
   staticpro (&Qcancel_timer);
 
@@ -14092,21 +8396,6 @@ syms_of_w32fns ()
     = Fcons (Fcons (Qdisplay, Qt), Vtext_property_default_nonsticky);
 
 
-  Qlaplace = intern ("laplace");
-  staticpro (&Qlaplace);
-  Qemboss = intern ("emboss");
-  staticpro (&Qemboss);
-  Qedge_detection = intern ("edge-detection");
-  staticpro (&Qedge_detection);
-  Qheuristic = intern ("heuristic");
-  staticpro (&Qheuristic);
-  QCmatrix = intern (":matrix");
-  staticpro (&QCmatrix);
-  QCcolor_adjustment = intern (":color-adjustment");
-  staticpro (&QCcolor_adjustment);
-  QCmask = intern (":mask");
-  staticpro (&QCmask);
-
   Fput (Qundefined_color, Qerror_conditions,
 	Fcons (Qundefined_color, Fcons (Qerror, Qnil)));
   Fput (Qundefined_color, Qerror_message,
@@ -14237,10 +8526,6 @@ If this variable is non-nil, Emacs will pass them on, allowing the
 system to handle them.  */);
   w32_pass_extra_mouse_buttons_to_system = 0;
 
-  DEFVAR_LISP ("x-bitmap-file-path", &Vx_bitmap_file_path,
-	       doc: /* List of directories to search for window system bitmap files.  */);
-  Vx_bitmap_file_path = decode_env_path ((char *) 0, "PATH");
-
   DEFVAR_LISP ("x-pointer-shape", &Vx_pointer_shape,
 	       doc: /* The shape of the pointer when over text.
 Changing the value does not affect existing frames
@@ -14307,13 +8592,6 @@ such a font.  This is especially effective for such large fonts as
 Chinese, Japanese, and Korean.  */);
   Vx_pixel_size_width_font_regexp = Qnil;
 
-  DEFVAR_LISP ("image-cache-eviction-delay", &Vimage_cache_eviction_delay,
-	       doc: /* Time after which cached images are removed from the cache.
-When an image has not been displayed this many seconds, remove it
-from the image cache.  Value must be an integer or nil with nil
-meaning don't clear the cache.  */);
-  Vimage_cache_eviction_delay = make_number (30 * 60);
-
   DEFVAR_LISP ("w32-bdf-filename-alist",
                &Vw32_bdf_filename_alist,
                doc: /* List of bdf fonts and their corresponding filenames.  */);
@@ -14478,64 +8756,6 @@ versions of Windows) characters.  */);
   set_frame_fontset_func = x_set_font;
   check_window_system_func = check_w32;
 
-  /* Images.  */
-  Qxbm = intern ("xbm");
-  staticpro (&Qxbm);
-  QCconversion = intern (":conversion");
-  staticpro (&QCconversion);
-  QCheuristic_mask = intern (":heuristic-mask");
-  staticpro (&QCheuristic_mask);
-  QCcolor_symbols = intern (":color-symbols");
-  staticpro (&QCcolor_symbols);
-  QCascent = intern (":ascent");
-  staticpro (&QCascent);
-  QCmargin = intern (":margin");
-  staticpro (&QCmargin);
-  QCrelief = intern (":relief");
-  staticpro (&QCrelief);
-  Qpostscript = intern ("postscript");
-  staticpro (&Qpostscript);
-  QCloader = intern (":loader");
-  staticpro (&QCloader);
-  QCbounding_box = intern (":bounding-box");
-  staticpro (&QCbounding_box);
-  QCpt_width = intern (":pt-width");
-  staticpro (&QCpt_width);
-  QCpt_height = intern (":pt-height");
-  staticpro (&QCpt_height);
-  QCindex = intern (":index");
-  staticpro (&QCindex);
-  Qpbm = intern ("pbm");
-  staticpro (&Qpbm);
-
-#if HAVE_XPM
-  Qxpm = intern ("xpm");
-  staticpro (&Qxpm);
-#endif
-
-#if HAVE_JPEG
-  Qjpeg = intern ("jpeg");
-  staticpro (&Qjpeg);
-#endif
-
-#if HAVE_TIFF
-  Qtiff = intern ("tiff");
-  staticpro (&Qtiff);
-#endif
-
-#if HAVE_GIF
-  Qgif = intern ("gif");
-  staticpro (&Qgif);
-#endif
-
-#if HAVE_PNG
-  Qpng = intern ("png");
-  staticpro (&Qpng);
-#endif
-
-  defsubr (&Sclear_image_cache);
-  defsubr (&Simage_size);
-  defsubr (&Simage_mask_p);
 
   hourglass_atimer = NULL;
   hourglass_shown_p = 0;
@@ -14575,84 +8795,6 @@ void globals_of_w32fns ()
     GetProcAddress (user32_lib, "GetClipboardSequenceNumber");
 }
 
-/* Initialize image types. Based on which libraries are available.  */
-static void
-init_external_image_libraries ()
-{
-  HINSTANCE library;
-
-#if HAVE_XPM
-  if ((library = LoadLibrary ("libXpm.dll")))
-    {
-      if (init_xpm_functions (library))
-	define_image_type (&xpm_type);
-    }
-
-#endif
-
-#if HAVE_JPEG
-  /* Try loading jpeg library under probable names.  */
-  if ((library = LoadLibrary ("libjpeg.dll"))
-      || (library = LoadLibrary ("jpeg-62.dll"))
-      || (library = LoadLibrary ("jpeg.dll")))
-    {
-      if (init_jpeg_functions (library))
-	define_image_type (&jpeg_type);
-    }
-#endif
-
-#if HAVE_TIFF
-  if (library = LoadLibrary ("libtiff.dll"))
-    {
-      if (init_tiff_functions (library))
-        define_image_type (&tiff_type);
-    }
-#endif
-
-#if HAVE_GIF
-  if (library = LoadLibrary ("libungif.dll"))
-    {
-      if (init_gif_functions (library))
-        define_image_type (&gif_type);
-    }
-#endif
-
-#if HAVE_PNG
-  /* Ensure zlib is loaded.  Try debug version first.  */
-  if (!LoadLibrary ("zlibd.dll"))
-    LoadLibrary ("zlib.dll");
-
-  /* Try loading libpng under probable names.  */
-  if ((library = LoadLibrary ("libpng13d.dll"))
-      || (library = LoadLibrary ("libpng13.dll"))
-      || (library = LoadLibrary ("libpng12d.dll"))
-      || (library = LoadLibrary ("libpng12.dll"))
-      || (library = LoadLibrary ("libpng.dll")))
-    {
-      if (init_png_functions (library))
-	define_image_type (&png_type);
-    }
-#endif
-}
-
-void
-init_xfns ()
-{
-  image_types = NULL;
-  Vimage_types = Qnil;
-
-  define_image_type (&pbm_type);
-  define_image_type (&xbm_type);
-
-#if 0 /* TODO : Ghostscript support for W32 */
-  define_image_type (&gs_type);
-#endif
-
-  /* Image types that rely on external libraries are loaded dynamically
-     if the library is available.  */
-  init_external_image_libraries ();
-}
-
 #undef abort
 
 void