Consolidate the image_cache to the terminal struct.

* termhooks.h (P_): Remove redundant def.
(struct terminal): New field `image_cache'.
* frame.h (FRAME_IMAGE_CACHE): New macro.  Use it everywhere in place
of FRAME_X_IMAGE_CACHE.
* xterm.h (struct x_display_info): Remove image_cache field.
(FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
* w32term.h (struct w32_display_info): Remove image_cache field.
(FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
* macterm.h (struct mac_display_info): Remove image_cache field.
(FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
* xterm.c (x_term_init):
* w32term.c (w32_term_init):
* macterm.c (mac_term_init): Set the image_cache in the terminal.
* dispextern.h (clear_image_cache, forall_images_in_image_cache):
Remove declarations.
(clear_image_caches, mark_image_cache): New declarations.
* xfaces.c (clear_face_cache):
* xdisp.c (redisplay_internal): Use clear_image_caches.
* image.c (clear_image_cache): Don't check that a frame is on
a window-system before checking if it shares the same cache.
(clear_image_caches): New function.
(Fclear_image_cache): Use it.
(mark_image): Move from allo.c.
(mark_image_cache): Move from alloc.c and forall_images_in_image_cache.
* alloc.c (mark_image, mark_image_cache): Move to image.c.
(mark_object): Don't call mark_image_cache for frames.
(mark_terminals): Call mark_image_cache.

17 files changed, 101 insertions, 121 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index c71b748a018..2f70d3be552 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,34 @@
 2008-02-22  Stefan Monnier  <monnier@iro.umontreal.ca>
 
+        Consolidate the image_cache to the terminal struct.
+        * termhooks.h (P_): Remove redundant def.
+        (struct terminal): New field `image_cache'.
+        * frame.h (FRAME_IMAGE_CACHE): New macro.  Use it everywhere in place
+        of FRAME_X_IMAGE_CACHE.
+        * xterm.h (struct x_display_info): Remove image_cache field.
+        (FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
+        * w32term.h (struct w32_display_info): Remove image_cache field.
+        (FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
+        * macterm.h (struct mac_display_info): Remove image_cache field.
+        (FRAME_X_IMAGE_CACHE): Remove.  Use FRAME_IMAGE_CACHE instead.
+        * xterm.c (x_term_init):
+        * w32term.c (w32_term_init):
+        * macterm.c (mac_term_init): Set the image_cache in the terminal.
+        * dispextern.h (clear_image_cache, forall_images_in_image_cache):
+        Remove declarations.
+        (clear_image_caches, mark_image_cache): New declarations.
+        * xfaces.c (clear_face_cache):
+        * xdisp.c (redisplay_internal): Use clear_image_caches.
+        * image.c (clear_image_cache): Don't check that a frame is on
+        a window-system before checking if it shares the same cache.
+        (clear_image_caches): New function.
+        (Fclear_image_cache): Use it.
+        (mark_image): Move from allo.c.
+        (mark_image_cache): Move from alloc.c and forall_images_in_image_cache.
+        * alloc.c (mark_image, mark_image_cache): Move to image.c.
+        (mark_object): Don't call mark_image_cache for frames.
+        (mark_terminals): Call mark_image_cache.
+
         * lisp.h (Fdelete_terminal): Declare.
 
         * charset.h (CHECK_CHARSET, CHECK_CHARSET_GET_ID)
diff --git a/src/alloc.c b/src/alloc.c
index 68fc5d9d2a7..fe37eec9379 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -353,8 +353,6 @@ static void mark_face_cache P_ ((struct face_cache *));
 
 #ifdef HAVE_WINDOW_SYSTEM
 extern void mark_fringe_data P_ ((void));
-static void mark_image P_ ((struct image *));
-static void mark_image_cache P_ ((struct frame *));
 #endif /* HAVE_WINDOW_SYSTEM */
 
 static struct Lisp_String *allocate_string P_ ((void));
@@ -5324,34 +5322,6 @@ mark_face_cache (c)
 }
 
 
-#ifdef HAVE_WINDOW_SYSTEM
-
-/* Mark Lisp objects in image IMG.  */
-
-static void
-mark_image (img)
-     struct image *img;
-{
-  mark_object (img->spec);
-
-  if (!NILP (img->data.lisp_val))
-    mark_object (img->data.lisp_val);
-}
-
-
-/* Mark Lisp objects in image cache of frame F.  It's done this way so
-   that we don't have to include xterm.h here.  */
-
-static void
-mark_image_cache (f)
-     struct frame *f;
-{
-  forall_images_in_image_cache (f, mark_image);
-}
-
-#endif /* HAVE_X_WINDOWS */
-
-
 
 /* Mark reference to a Lisp_Object.
    If the object referred to has not been seen yet, recursively mark
@@ -5520,12 +5490,7 @@ mark_object (arg)
         {
           register struct frame *ptr = XFRAME (obj);
           if (mark_vectorlike (XVECTOR (obj)))
-            {
-              mark_face_cache (ptr->face_cache);
-#ifdef HAVE_WINDOW_SYSTEM
-              mark_image_cache (ptr);
-#endif /* HAVE_WINDOW_SYSTEM */
-            }
+            mark_face_cache (ptr->face_cache);
         }
       else if (WINDOWP (obj))
         {
@@ -5760,6 +5725,9 @@ mark_terminals (void)
   for (t = terminal_list; t; t = t->next_terminal)
     {
       eassert (t->name != NULL);
+#ifdef HAVE_WINDOW_SYSTEM
+      mark_image_cache (t->image_cache);
+#endif /* HAVE_WINDOW_SYSTEM */
       mark_vectorlike ((struct Lisp_Vector *)t);
     }
 }
diff --git a/src/dispextern.h b/src/dispextern.h
index daca52590b0..9e0e160c5bb 100644
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -2547,8 +2547,8 @@ struct image_cache
    no image with that id exists.  */
 
 #define IMAGE_FROM_ID(F, ID)                                    \
-     (((ID) >= 0 && (ID) < (FRAME_X_IMAGE_CACHE (F)->used))     \
-      ? FRAME_X_IMAGE_CACHE (F)->images[ID]                     \
+     (((ID) >= 0 && (ID) < (FRAME_IMAGE_CACHE (F)->used))       \
+      ? FRAME_IMAGE_CACHE (F)->images[ID]                       \
       : NULL)
 
 /* Size of bucket vector of image caches.  Should be prime.  */
@@ -2818,9 +2818,8 @@ extern Lisp_Object x_find_image_file P_ ((Lisp_Object));
 void x_kill_gs_process P_ ((Pixmap, struct frame *));
 struct image_cache *make_image_cache P_ ((void));
 void free_image_cache P_ ((struct frame *));
-void clear_image_cache P_ ((struct frame *, int));
-void forall_images_in_image_cache P_ ((struct frame *,
-                                       void (*) P_ ((struct image *))));
+void clear_image_caches P_ ((int));
+void mark_image_cache P_ ((struct image_cache *));
 int valid_image_p P_ ((Lisp_Object));
 void prepare_image_for_display P_ ((struct frame *, struct image *));
 int lookup_image P_ ((struct frame *, Lisp_Object));
diff --git a/src/frame.h b/src/frame.h
index b0b7cc383d3..3b5a27f78a8 100644
--- a/src/frame.h
+++ b/src/frame.h
@@ -484,6 +484,9 @@ struct frame
 #define FRAME_KBOARD(f) (&the_only_kboard)
 #endif
 
+/* Return a pointer to the image cache of frame F.  */
+#define FRAME_IMAGE_CACHE(F) ((F)->terminal->image_cache)
+
 typedef struct frame *FRAME_PTR;
 
 #define XFRAME(p) (eassert (FRAMEP(p)),(struct frame *) XPNTR (p))
diff --git a/src/image.c b/src/image.c
index 04fda4f88a8..7833b8473d6 100644
--- a/src/image.c
+++ b/src/image.c
@@ -1207,7 +1207,7 @@ free_image (f, img)
 {
   if (img)
     {
-      struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
+      struct image_cache *c = FRAME_IMAGE_CACHE (f);
 
       /* Remove IMG from the hash table of its cache.  */
       if (img->prev)
@@ -1642,7 +1642,7 @@ search_image_cache (f, spec, hash)
      unsigned hash;
 {
   struct image *img;
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
+  struct image_cache *c = FRAME_IMAGE_CACHE (f);
   int i = hash % IMAGE_CACHE_BUCKETS_SIZE;
 
   if (!c) return NULL;
@@ -1689,7 +1689,7 @@ void
 free_image_cache (f)
      struct frame *f;
 {
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
+  struct image_cache *c = FRAME_IMAGE_CACHE (f);
   if (c)
     {
       int i;
@@ -1702,7 +1702,7 @@ free_image_cache (f)
       xfree (c->images);
       xfree (c->buckets);
       xfree (c);
-      FRAME_X_IMAGE_CACHE (f) = NULL;
+      FRAME_IMAGE_CACHE (f) = NULL;
     }
 }
 
@@ -1719,7 +1719,7 @@ clear_image_cache (f, force_p)
      struct frame *f;
      int force_p;
 {
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
+  struct image_cache *c = FRAME_IMAGE_CACHE (f);
 
   if (c && INTEGERP (Vimage_cache_eviction_delay))
     {
@@ -1756,8 +1756,7 @@ clear_image_cache (f, force_p)
           FOR_EACH_FRAME (tail, frame)
             {
               struct frame *f = XFRAME (frame);
-              if (FRAME_WINDOW_P (f)
-                  && FRAME_X_IMAGE_CACHE (f) == c)
+              if (FRAME_IMAGE_CACHE (f) == c)
                 clear_current_matrices (f);
             }
 
@@ -1768,6 +1767,18 @@ clear_image_cache (f, force_p)
     }
 }
 
+void
+clear_image_caches (int force_p)
+{
+  /* FIXME: We want to do
+   * struct terminal *t;
+   * for (t = terminal_list; t; t = t->next_terminal)
+   *   clear_image_cache (t, filter); */
+  Lisp_Object tail, frame;
+  FOR_EACH_FRAME (tail, frame)
+    if (FRAME_WINDOW_P (XFRAME (frame)))
+      clear_image_cache (XFRAME (frame), force_p);
+}
 
 DEFUN ("clear-image-cache", Fclear_image_cache, Sclear_image_cache,
        0, 1, 0,
@@ -1778,13 +1789,7 @@ FRAME t means clear the image caches of all frames.  */)
      Lisp_Object frame;
 {
   if (EQ (frame, Qt))
-    {
-      Lisp_Object tail;
-
-      FOR_EACH_FRAME (tail, frame)
-        if (FRAME_WINDOW_P (XFRAME (frame)))
-          clear_image_cache (XFRAME (frame), 1);
-    }
+    clear_image_caches (1);
   else
     clear_image_cache (check_x_frame (frame), 1);
 
@@ -1916,7 +1921,7 @@ lookup_image (f, spec)
   xassert (FRAME_WINDOW_P (f));
   xassert (valid_image_p (spec));
 
-  c = FRAME_X_IMAGE_CACHE (f);
+  c = FRAME_IMAGE_CACHE (f);
 
   GCPRO1 (spec);
 
@@ -2027,7 +2032,7 @@ cache_image (f, img)
      struct frame *f;
      struct image *img;
 {
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
+  struct image_cache *c = FRAME_IMAGE_CACHE (f);
   int i;
 
   /* Find a free slot in c->images.  */
@@ -2062,21 +2067,28 @@ cache_image (f, img)
 /* Call FN on every image in the image cache of frame F.  Used to mark
    Lisp Objects in the image cache.  */
 
+/* Mark Lisp objects in image IMG.  */
+
+static void
+mark_image (img)
+     struct image *img;
+{
+  mark_object (img->spec);
+
+  if (!NILP (img->data.lisp_val))
+    mark_object (img->data.lisp_val);
+}
+
+
 void
-forall_images_in_image_cache (f, fn)
-     struct frame *f;
-     void (*fn) P_ ((struct image *img));
+mark_image_cache (struct image_cache *c)
 {
-  if (FRAME_LIVE_P (f) && FRAME_WINDOW_P (f))
+  if (c)
     {
-      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]);
-        }
+      int i;
+      for (i = 0; i < c->used; ++i)
+        if (c->images[i])
+          mark_image (c->images[i]);
     }
 }
 
@@ -8856,7 +8868,7 @@ x_kill_gs_process (pixmap, f)
      Pixmap pixmap;
      struct frame *f;
 {
-  struct image_cache *c = FRAME_X_IMAGE_CACHE (f);
+  struct image_cache *c = FRAME_IMAGE_CACHE (f);
   int class, i;
   struct image *img;
 
diff --git a/src/macfns.c b/src/macfns.c
index aab91cf41f4..9e471c6c588 100644
--- a/src/macfns.c
+++ b/src/macfns.c
@@ -2608,7 +2608,7 @@ This function is an internal primitive--use `make-frame' instead.  */)
 
   /* With FRAME_MAC_DISPLAY_INFO set up, this unwind-protect is safe.  */
 #if GLYPH_DEBUG
-  image_cache_refcount = FRAME_X_IMAGE_CACHE (f)->refcount;
+  image_cache_refcount = FRAME_IMAGE_CACHE (f)->refcount;
   dpyinfo_refcount = dpyinfo->reference_count;
 #endif /* GLYPH_DEBUG */
   FRAME_KBOARD (f) = kb;
@@ -3846,7 +3846,7 @@ x_create_tip_frame (dpyinfo, parms, text)
   f->icon_name = Qnil;
 /*   FRAME_X_DISPLAY_INFO (f) = dpyinfo; */
 #if GLYPH_DEBUG
-  image_cache_refcount = FRAME_X_IMAGE_CACHE (f)->refcount;
+  image_cache_refcount = FRAME_IMAGE_CACHE (f)->refcount;
   dpyinfo_refcount = dpyinfo->reference_count;
 #endif /* GLYPH_DEBUG */
   FRAME_KBOARD (f) = kb;
diff --git a/src/macterm.c b/src/macterm.c
index 2d03c8918c5..842e1844f50 100644
--- a/src/macterm.c
+++ b/src/macterm.c
@@ -12624,7 +12624,7 @@ mac_term_init (display_name, xrm_option, resource_name)
 
   dpyinfo->grabbed = 0;
   dpyinfo->root_window = NULL;
-  dpyinfo->image_cache = make_image_cache ();
+  dpyinfo->terminal->image_cache = make_image_cache ();
 
   dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
   dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
diff --git a/src/macterm.h b/src/macterm.h
index 11d7e05a38f..ddbf0f04182 100644
--- a/src/macterm.h
+++ b/src/macterm.h
@@ -185,9 +185,6 @@ struct mac_display_info
      frame.  It differs from x_focus_frame when we're using a global
      minibuffer.  */
   struct frame *x_highlight_frame;
-
-  /* Cache of images.  */
-  struct image_cache *image_cache;
 };
 
 /* This checks to make sure we have a display.  */
@@ -394,11 +391,6 @@ typedef struct mac_output mac_output;
 
 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
      FRAME_MAC_DISPLAY_INFO(F)->smallest_font_height
-
-/* Return a pointer to the image cache of frame F.  */
-
-#define FRAME_X_IMAGE_CACHE(F) FRAME_MAC_DISPLAY_INFO ((F))->image_cache
-
 
 /* Mac-specific scroll bar stuff.  */
 
diff --git a/src/termhooks.h b/src/termhooks.h
index 7ff1a2ca111..2acd20bbb3f 100644
--- a/src/termhooks.h
+++ b/src/termhooks.h
@@ -24,11 +24,6 @@ Boston, MA 02110-1301, USA.  */
 
 struct glyph;
 struct frame;
-
-/* Only use prototypes when lisp.h has been included.  */
-#ifndef P_
-#define P_(X) ()
-#endif
 
 
 enum scroll_bar_part {
@@ -363,6 +358,11 @@ struct terminal
   struct kboard *kboard;
 #endif
 
+#ifdef HAVE_WINDOW_SYSTEM
+  /* Cache of images.  */
+  struct image_cache *image_cache;
+#endif /* HAVE_WINDOW_SYSTEM */
+
   /* Device-type dependent data shared amongst all frames on this terminal. */
   union display_info
   {
diff --git a/src/w32fns.c b/src/w32fns.c
index d61dba18e35..062d36dc10f 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -7476,7 +7476,7 @@ x_create_tip_frame (dpyinfo, parms, text)
   f->icon_name = Qnil;
 
 #if 0 /* GLYPH_DEBUG TODO: image support.  */
-  image_cache_refcount = FRAME_X_IMAGE_CACHE (f)->refcount;
+  image_cache_refcount = FRAME_IMAGE_CACHE (f)->refcount;
   dpyinfo_refcount = dpyinfo->reference_count;
 #endif /* GLYPH_DEBUG */
 #ifdef MULTI_KBOARD
diff --git a/src/w32term.c b/src/w32term.c
index cbe8e1f6776..57455303ed5 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -7033,7 +7033,7 @@ w32_term_init (display_name, xrm_option, resource_name)
   dpyinfo->resx = GetDeviceCaps (hdc, LOGPIXELSX);
   dpyinfo->resy = GetDeviceCaps (hdc, LOGPIXELSY);
   dpyinfo->has_palette = GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE;
-  dpyinfo->image_cache = make_image_cache ();
+  dpyinfo->terminal->image_cache = make_image_cache ();
   dpyinfo->height_in = dpyinfo->height / dpyinfo->resx;
   dpyinfo->width_in = dpyinfo->width / dpyinfo->resy;
   ReleaseDC (GetDesktopWindow (), hdc);
diff --git a/src/w32term.h b/src/w32term.h
index 0f2efad51cf..d6b20bce910 100644
--- a/src/w32term.h
+++ b/src/w32term.h
@@ -233,9 +233,6 @@ struct w32_display_info
      frame.  It differs from w32_focus_frame when we're using a global
      minibuffer.  */
   struct frame *x_highlight_frame;
-
-  /* Cache of images.  */
-  struct image_cache *image_cache;
 };
 
 /* This is a chain of structures for all the displays currently in use.  */
@@ -443,11 +440,6 @@ extern struct w32_output w32term_display;
 
 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
      FRAME_W32_DISPLAY_INFO(F)->smallest_font_height
-
-/* Return a pointer to the image cache of frame F.  */
-
-#define FRAME_X_IMAGE_CACHE(F) FRAME_W32_DISPLAY_INFO ((F))->image_cache
-
 
 /* W32-specific scroll bar stuff.  */
 
diff --git a/src/xdisp.c b/src/xdisp.c
index f9333b4282f..2006274489c 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -11797,13 +11797,7 @@ redisplay_internal (preserve_echo_area)
 #ifdef HAVE_WINDOW_SYSTEM
       if (clear_image_cache_count > CLEAR_IMAGE_CACHE_COUNT)
         {
-          Lisp_Object tail, frame;
-          FOR_EACH_FRAME (tail, frame)
-            {
-              struct frame *f = XFRAME (frame);
-              if (FRAME_WINDOW_P (f))
-                clear_image_cache (f, 0);
-            }
+          clear_image_caches (0);
           clear_image_cache_count = 0;
         }
 #endif /* HAVE_WINDOW_SYSTEM */
diff --git a/src/xfaces.c b/src/xfaces.c
index 8497f53ffb6..d160d9e8c29 100644
--- a/src/xfaces.c
+++ b/src/xfaces.c
@@ -894,9 +894,10 @@ init_frame_faces (f)
   /* Make the image cache.  */
   if (FRAME_WINDOW_P (f))
     {
-      if (FRAME_X_IMAGE_CACHE (f) == NULL)
-        FRAME_X_IMAGE_CACHE (f) = make_image_cache ();
-      ++FRAME_X_IMAGE_CACHE (f)->refcount;
+      if (FRAME_IMAGE_CACHE (f) == NULL)
+        /* Is that ever possible??  --Stef  */
+        FRAME_IMAGE_CACHE (f) = make_image_cache ();
+      ++FRAME_IMAGE_CACHE (f)->refcount;
     }
 #endif /* HAVE_WINDOW_SYSTEM */
 
@@ -933,7 +934,7 @@ free_frame_faces (f)
 #ifdef HAVE_WINDOW_SYSTEM
   if (FRAME_WINDOW_P (f))
     {
-      struct image_cache *image_cache = FRAME_X_IMAGE_CACHE (f);
+      struct image_cache *image_cache = FRAME_IMAGE_CACHE (f);
       if (image_cache)
         {
           --image_cache->refcount;
@@ -1008,11 +1009,9 @@ clear_face_cache (clear_fonts_p)
         {
           f = XFRAME (frame);
           if (FRAME_WINDOW_P (f))
-            {
               clear_face_gcs (FRAME_FACE_CACHE (f));
-              clear_image_cache (f, 0);
-            }
         }
+      clear_image_caches (0);
     }
 #endif /* HAVE_WINDOW_SYSTEM */
 }
diff --git a/src/xfns.c b/src/xfns.c
index 9c2afbf6736..bfbc6ac02e9 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -3326,7 +3326,7 @@ This function is an internal primitive--use `make-frame' instead.  */)
   /* With FRAME_X_DISPLAY_INFO set up, this unwind-protect is safe.  */
   record_unwind_protect (unwind_create_frame, frame);
 #if GLYPH_DEBUG
-  image_cache_refcount = FRAME_X_IMAGE_CACHE (f)->refcount;
+  image_cache_refcount = FRAME_IMAGE_CACHE (f)->refcount;
   dpyinfo_refcount = dpyinfo->reference_count;
 #endif /* GLYPH_DEBUG */
 
@@ -4930,7 +4930,7 @@ x_create_tip_frame (dpyinfo, parms, text)
   f->icon_name = Qnil;
   FRAME_X_DISPLAY_INFO (f) = dpyinfo;
 #if GLYPH_DEBUG
-  image_cache_refcount = FRAME_X_IMAGE_CACHE (f)->refcount;
+  image_cache_refcount = FRAME_IMAGE_CACHE (f)->refcount;
   dpyinfo_refcount = dpyinfo->reference_count;
 #endif /* GLYPH_DEBUG */
   f->output_data.x->parent_desc = FRAME_X_DISPLAY_INFO (f)->root_window;
diff --git a/src/xterm.c b/src/xterm.c
index 709be459b20..5dd1585eda1 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -11395,7 +11395,7 @@ x_term_init (display_name, xrm_option, resource_name)
   dpyinfo->x_focus_frame = 0;
   dpyinfo->x_focus_event_frame = 0;
   dpyinfo->x_highlight_frame = 0;
-  dpyinfo->image_cache = make_image_cache ();
+  dpyinfo->terminal->image_cache = make_image_cache ();
   dpyinfo->wm_type = X_WMTYPE_UNKNOWN;
 
   /* See if we can construct pixel values from RGB values.  */
diff --git a/src/xterm.h b/src/xterm.h
index a563fb9701f..6bb68cf9153 100644
--- a/src/xterm.h
+++ b/src/xterm.h
@@ -330,9 +330,6 @@ struct x_display_info
   /* The gray pixmap.  */
   Pixmap gray;
 
-  /* Cache of images.  */
-  struct image_cache *image_cache;
-
 #ifdef HAVE_X_I18N
   /* XIM (X Input method).  */
   XIM xim;
@@ -737,11 +734,6 @@ enum
 
 #define FRAME_SMALLEST_FONT_HEIGHT(F) \
      FRAME_X_DISPLAY_INFO(F)->smallest_font_height
-
-/* Return a pointer to the image cache of frame F.  */
-
-#define FRAME_X_IMAGE_CACHE(F) FRAME_X_DISPLAY_INFO ((F))->image_cache
-
 
 /* X-specific scroll bar stuff.  */