(XCharStruct): Remove member `valid_p'.

(STORE_XCHARSTRUCT): Don't set member `valid_p'.
(XCharStructRow): New typedef.
(XCHARSTRUCTROW_CHAR_VALID_P, XCHARSTRUCTROW_SET_CHAR_VALID): New
macros.
(struct MacFontStruct): Add member `bounds'.  Remove member
`per_char'.  All uses for QuichDraw Text fonts are changed to
`bounds.per_char'.  ATSUI font bounds are represented as an array
`bounds.rows' of XCharStructRow's, each of which consists of a
bitmap of valid entries and an array of char bounds.

diff --git a/src/macgui.h b/src/macgui.h
index 40244dbc7c6caeb02a0eb7070cd9b4b7d355d8bc..74c64bfb41d0f852747e29f2312d91236f8f3d5f 100644 (file)
--- a/src/macgui.h
+++ b/src/macgui.h
@@ -109,7 +109,6 @@ typedef struct _XCharStruct
 #if 0
   unsigned short attributes;   /* per char flags (not predefined) */
 #endif
-  unsigned valid_p : 1;
 } XCharStruct;
 
 #define STORE_XCHARSTRUCT(xcs, w, bds)                 \
@@ -117,8 +116,19 @@ typedef struct _XCharStruct
    (xcs).lbearing = (bds).left,                                \
    (xcs).rbearing = (bds).right,                       \
    (xcs).ascent = -(bds).top,                          \
-   (xcs).descent = (bds).bottom,                       \
-   (xcs).valid_p = 1)
+   (xcs).descent = (bds).bottom)
+
+typedef struct
+{
+  char valid_bits[0x100 / 8];
+  XCharStruct per_char[0x100];
+} XCharStructRow;
+
+#define XCHARSTRUCTROW_CHAR_VALID_P(row, byte2) \
+  ((row)->valid_bits[(byte2) / 8] & (1 << (byte2) % 8))
+
+#define XCHARSTRUCTROW_SET_CHAR_VALID(row, byte2) \
+  ((row)->valid_bits[(byte2) / 8] |= (1 << (byte2) % 8))
 
 struct MacFontStruct {
   char *full_name;
@@ -157,7 +167,10 @@ struct MacFontStruct {
 #endif /* 0 */
   XCharStruct min_bounds;  /* minimum bounds over all existing char */
   XCharStruct max_bounds;  /* maximum bounds over all existing char */
-  XCharStruct *per_char;   /* first_char to last_char information */
+  union {
+    XCharStruct *per_char; /* first_char to last_char information */
+    XCharStructRow **rows; /* first row to last row information */
+  } bounds;
   int ascent;              /* logical extent above baseline for spacing */
   int descent;             /* logical decent below baseline for spacing */
 };