src/java.desktop/share/native/libfontmanager/harfbuzz/hb-coretext.cc

@@ -143,10 +143,26 @@
   CTFontRef ct_font = CTFontCreateWithGraphicsFont (cg_font, font_size, NULL, NULL);
   if (unlikely (!ct_font)) {
     DEBUG_MSG (CORETEXT, cg_font, "Font CTFontCreateWithGraphicsFont() failed");
     return NULL;
   }
+
+  /* crbug.com/576941 and crbug.com/625902 and the investigation in the latter
+   * bug indicate that the cascade list reconfiguration occasionally causes
+   * crashes in CoreText on OS X 10.9, thus let's skip this step on older
+   * operating system versions. Except for the emoji font, where _not_
+   * reconfiguring the cascade list causes CoreText crashes. For details, see
+   * crbug.com/549610 */
+  // 0x00070000 stands for "kCTVersionNumber10_10", see CoreText.h
+  if (&CTGetCoreTextVersion != NULL && CTGetCoreTextVersion() < 0x00070000) {
+    CFStringRef fontName = CTFontCopyPostScriptName (ct_font);
+    bool isEmojiFont = CFStringCompare (fontName, CFSTR("AppleColorEmoji"), 0) == kCFCompareEqualTo;
+    CFRelease (fontName);
+    if (!isEmojiFont)
+      return ct_font;
+  }
+
   CFURLRef original_url = (CFURLRef)CTFontCopyAttribute(ct_font, kCTFontURLAttribute);
 
   /* Create font copy with cascade list that has LastResort first; this speeds up CoreText
    * font fallback which we don't need anyway. */
   {

@@ -270,11 +286,13 @@
 struct hb_coretext_shaper_shape_plan_data_t {};
 
 hb_coretext_shaper_shape_plan_data_t *
 _hb_coretext_shaper_shape_plan_data_create (hb_shape_plan_t    *shape_plan HB_UNUSED,
                                              const hb_feature_t *user_features HB_UNUSED,
-                                             unsigned int        num_user_features HB_UNUSED)
+                                             unsigned int        num_user_features HB_UNUSED,
+                                             const int          *coords HB_UNUSED,
+                                             unsigned int        num_coords HB_UNUSED)
 {
   return (hb_coretext_shaper_shape_plan_data_t *) HB_SHAPER_DATA_SUCCEEDED;
 }
 
 void

@@ -715,11 +733,11 @@
       pchars[chars_len++] = c;
     else if (unlikely (c > 0x10FFFFu))
       pchars[chars_len++] = 0xFFFDu;
     else {
       pchars[chars_len++] = 0xD800u + ((c - 0x10000u) >> 10);
-      pchars[chars_len++] = 0xDC00u + ((c - 0x10000u) & ((1 << 10) - 1));
+      pchars[chars_len++] = 0xDC00u + ((c - 0x10000u) & ((1u << 10) - 1));
     }
   }
 
   ALLOCATE_ARRAY (unsigned int, log_clusters, chars_len, /*nothing*/);
   chars_len = 0;

@@ -1262,11 +1280,13 @@
 struct hb_coretext_aat_shaper_shape_plan_data_t {};
 
 hb_coretext_aat_shaper_shape_plan_data_t *
 _hb_coretext_aat_shaper_shape_plan_data_create (hb_shape_plan_t    *shape_plan HB_UNUSED,
                                              const hb_feature_t *user_features HB_UNUSED,
-                                             unsigned int        num_user_features HB_UNUSED)
+                                             unsigned int        num_user_features HB_UNUSED,
+                                             const int          *coords HB_UNUSED,
+                                             unsigned int        num_coords HB_UNUSED)
 {
   return (hb_coretext_aat_shaper_shape_plan_data_t *) HB_SHAPER_DATA_SUCCEEDED;
 }
 
 void