(CHAR_GLYPH_SPACE_P): Simplify.

(GLYPH_FROM_CHAR_GLYPH): Replace macro by ...
(SET_GLYPH_FROM_CHAR_GLYPH): ... this macro.  Change users.
(GLYPH_INVALID_P): New macro.
(spec_glyph_lookup_face): Update prototype.

diff --git a/src/dispextern.h b/src/dispextern.h
index 642bd97d6a2354997408047712b8be9795b1ca30..f592d8752a729cb0db5559c0c7ca565e59fbaafc 100644 (file)
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -418,7 +418,7 @@ struct glyph
 /* Is GLYPH a space?  */
 
 #define CHAR_GLYPH_SPACE_P(GLYPH) \
-     (GLYPH_FROM_CHAR_GLYPH ((GLYPH)) == SPACEGLYPH)
+  ((GLYPH).u.ch == SPACEGLYPH)
 
 /* Are glyph slices of glyphs *X and *Y equal */
 
@@ -465,18 +465,25 @@ struct glyph
 
 #define SET_CHAR_GLYPH_FROM_GLYPH(GLYPH, FROM)                 \
      SET_CHAR_GLYPH ((GLYPH),                                  \
-                    FAST_GLYPH_CHAR ((FROM)),                  \
-                    FAST_GLYPH_FACE ((FROM)),                  \
+                    GLYPH_CHAR ((FROM)),                       \
+                    GLYPH_FACE ((FROM)),                       \
                     0)
 
 /* Construct a glyph code from a character glyph GLYPH.  If the
    character is multibyte, return -1 as we can't use glyph table for a
    multibyte character.  */
 
-#define GLYPH_FROM_CHAR_GLYPH(GLYPH)                           \
-  ((GLYPH).u.ch < 256                                          \
-   ? ((GLYPH).u.ch | ((GLYPH).face_id << CHARACTERBITS))       \
-   : -1)
+#define SET_GLYPH_FROM_CHAR_GLYPH(G, GLYPH)                    \
+  do                                                           \
+    {                                                          \
+      if ((GLYPH).u.ch < 256)                                  \
+       SET_GLYPH ((G), (GLYPH).u.ch, ((GLYPH).face_id));       \
+      else                                                     \
+       SET_GLYPH ((G), -1, 0);                                 \
+    }                                                          \
+  while (0)
+
+#define GLYPH_INVALID_P(GLYPH) (GLYPH_CHAR (GLYPH) < 0)
 
 /* Is GLYPH a padding glyph?  */
 
@@ -3017,7 +3024,7 @@ void bitch_at_user P_ ((void));
 void init_display P_ ((void));
 void syms_of_display P_ ((void));
 extern Lisp_Object Qredisplay_dont_pause;
-GLYPH spec_glyph_lookup_face P_ ((struct window *, GLYPH));
+void spec_glyph_lookup_face P_ ((struct window *, GLYPH *));
 
 /* Defined in terminal.c */