Revert "Imported Upstream version 1.2.7"
[platform/upstream/harfbuzz.git] / src / hb-ot-shape-complex-private.hh
index b3372bd..e268933 100644 (file)
 
 enum hb_ot_shape_zero_width_marks_type_t {
   HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE,
+//  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_EARLY,
+  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_LATE,
   HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY,
-  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE
+  HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE,
+
+  HB_OT_SHAPE_ZERO_WIDTH_MARKS_DEFAULT = HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_UNICODE_LATE
 };
 
 
@@ -55,9 +59,9 @@ enum hb_ot_shape_zero_width_marks_type_t {
   HB_COMPLEX_SHAPER_IMPLEMENT (myanmar_old) \
   HB_COMPLEX_SHAPER_IMPLEMENT (indic) \
   HB_COMPLEX_SHAPER_IMPLEMENT (myanmar) \
+  HB_COMPLEX_SHAPER_IMPLEMENT (sea) \
   HB_COMPLEX_SHAPER_IMPLEMENT (thai) \
   HB_COMPLEX_SHAPER_IMPLEMENT (tibetan) \
-  HB_COMPLEX_SHAPER_IMPLEMENT (use) \
   /* ^--- Add new shapers here */
 
 
@@ -106,15 +110,6 @@ struct hb_ot_complex_shaper_t
                           hb_buffer_t              *buffer,
                           hb_font_t                *font);
 
-  /* postprocess_glyphs()
-   * Called during shape().
-   * Shapers can use to modify glyphs after shaping ends.
-   * May be NULL.
-   */
-  void (*postprocess_glyphs) (const hb_ot_shape_plan_t *plan,
-                             hb_buffer_t              *buffer,
-                             hb_font_t                *font);
-
 
   hb_ot_shape_normalization_mode_t normalization_preference;
 
@@ -184,12 +179,9 @@ hb_ot_shape_complex_categorize (const hb_ot_shape_planner_t *planner)
     case HB_SCRIPT_PSALTER_PAHLAVI:
 
       /* For Arabic script, use the Arabic shaper even if no OT script tag was found.
-       * This is because we do fallback shaping for Arabic script (and not others).
-       * But note that Arabic shaping is applicable only to horizontal layout; for
-       * vertical text, just use the generic shaper instead. */
-      if ((planner->map.chosen_script[0] != HB_OT_TAG_DEFAULT_SCRIPT ||
-          planner->props.script == HB_SCRIPT_ARABIC) &&
-         HB_DIRECTION_IS_HORIZONTAL(planner->props.direction))
+       * This is because we do fallback shaping for Arabic script (and not others). */
+      if (planner->map.chosen_script[0] != HB_OT_TAG_DEFAULT_SCRIPT ||
+         planner->props.script == HB_SCRIPT_ARABIC)
        return &_hb_ot_complex_shaper_arabic;
       else
        return &_hb_ot_complex_shaper_default;
@@ -222,9 +214,61 @@ hb_ot_shape_complex_categorize (const hb_ot_shape_planner_t *planner)
 
     /* ^--- Add new shapers here */
 
+
 #if 0
+    /* Note:
+     *
+     * These disabled scripts are listed in ucd/IndicSyllabicCategory.txt, but according
+     * to Martin Hosken and Jonathan Kew do not require complex shaping.
+     *
+     * TODO We should automate figuring out which scripts do not need complex shaping
+     *
+     * TODO We currently keep data for these scripts in our indic table.  Need to fix the
+     * generator to not do that.
+     */
+
+
+    /* Simple? */
+
+    /* Unicode-3.2 additions */
+    case HB_SCRIPT_BUHID:
+    case HB_SCRIPT_HANUNOO:
+
+    /* Unicode-5.1 additions */
+    case HB_SCRIPT_SAURASHTRA:
+
+    /* Unicode-6.0 additions */
+    case HB_SCRIPT_BATAK:
+    case HB_SCRIPT_BRAHMI:
+
+
+    /* Simple */
+
+    /* Unicode-1.1 additions */
+    /* These have their own shaper now. */
+    case HB_SCRIPT_LAO:
+    case HB_SCRIPT_THAI:
+
+    /* Unicode-3.2 additions */
+    case HB_SCRIPT_TAGALOG:
+    case HB_SCRIPT_TAGBANWA:
+
+    /* Unicode-4.0 additions */
+    case HB_SCRIPT_LIMBU:
+    case HB_SCRIPT_TAI_LE:
+
     /* Unicode-4.1 additions */
+    case HB_SCRIPT_KHAROSHTHI:
     case HB_SCRIPT_NEW_TAI_LUE:
+    case HB_SCRIPT_SYLOTI_NAGRI:
+
+    /* Unicode-5.1 additions */
+    case HB_SCRIPT_KAYAH_LI:
+
+    /* Unicode-5.2 additions */
+    case HB_SCRIPT_TAI_VIET:
+
+
 #endif
 
     /* Unicode-1.1 additions */
@@ -241,11 +285,28 @@ hb_ot_shape_complex_categorize (const hb_ot_shape_planner_t *planner)
     /* Unicode-3.0 additions */
     case HB_SCRIPT_SINHALA:
 
+    /* Unicode-5.0 additions */
+    case HB_SCRIPT_BALINESE:
+
+    /* Unicode-5.1 additions */
+    case HB_SCRIPT_LEPCHA:
+    case HB_SCRIPT_REJANG:
+    case HB_SCRIPT_SUNDANESE:
+
     /* Unicode-5.2 additions */
     case HB_SCRIPT_JAVANESE:
+    case HB_SCRIPT_KAITHI:
+    case HB_SCRIPT_MEETEI_MAYEK:
+
+    /* Unicode-6.0 additions */
+
+    /* Unicode-6.1 additions */
+    case HB_SCRIPT_CHAKMA:
+    case HB_SCRIPT_SHARADA:
+    case HB_SCRIPT_TAKRI:
 
       /* If the designer designed the font for the 'DFLT' script,
-       * use the default shaper.  Otherwise, use the specific shaper.
+       * use the default shaper.  Otherwise, use the Indic shaper.
        * Note that for some simple scripts, there may not be *any*
        * GSUB/GPOS needed, so there may be no scripts found! */
       if (planner->map.chosen_script[0] == HB_TAG ('D','F','L','T'))
@@ -277,82 +338,23 @@ hb_ot_shape_complex_categorize (const hb_ot_shape_planner_t *planner)
       else
        return &_hb_ot_complex_shaper_default;
 
-
-    /* Unicode-2.0 additions */
-    //case HB_SCRIPT_TIBETAN:
-
-    /* Unicode-3.0 additions */
-    //case HB_SCRIPT_MONGOLIAN:
-    //case HB_SCRIPT_SINHALA:
-
-    /* Unicode-3.2 additions */
-    case HB_SCRIPT_BUHID:
-    case HB_SCRIPT_HANUNOO:
-    case HB_SCRIPT_TAGALOG:
-    case HB_SCRIPT_TAGBANWA:
-
-    /* Unicode-4.0 additions */
-    case HB_SCRIPT_LIMBU:
-    case HB_SCRIPT_TAI_LE:
-
     /* Unicode-4.1 additions */
     case HB_SCRIPT_BUGINESE:
-    case HB_SCRIPT_KHAROSHTHI:
-    case HB_SCRIPT_SYLOTI_NAGRI:
-    case HB_SCRIPT_TIFINAGH:
-
-    /* Unicode-5.0 additions */
-    case HB_SCRIPT_BALINESE:
-    //case HB_SCRIPT_NKO:
-    //case HB_SCRIPT_PHAGS_PA:
 
     /* Unicode-5.1 additions */
     case HB_SCRIPT_CHAM:
-    case HB_SCRIPT_KAYAH_LI:
-    case HB_SCRIPT_LEPCHA:
-    case HB_SCRIPT_REJANG:
-    case HB_SCRIPT_SAURASHTRA:
-    case HB_SCRIPT_SUNDANESE:
 
     /* Unicode-5.2 additions */
-    case HB_SCRIPT_EGYPTIAN_HIEROGLYPHS:
-    //case HB_SCRIPT_JAVANESE:
-    case HB_SCRIPT_KAITHI:
-    case HB_SCRIPT_MEETEI_MAYEK:
     case HB_SCRIPT_TAI_THAM:
-    case HB_SCRIPT_TAI_VIET:
-
-    /* Unicode-6.0 additions */
-    case HB_SCRIPT_BATAK:
-    case HB_SCRIPT_BRAHMI:
-    //case HB_SCRIPT_MANDAIC:
-
-    /* Unicode-6.1 additions */
-    case HB_SCRIPT_CHAKMA:
-    case HB_SCRIPT_SHARADA:
-    case HB_SCRIPT_TAKRI:
-
-    /* Unicode-7.0 additions */
-    case HB_SCRIPT_DUPLOYAN:
-    case HB_SCRIPT_GRANTHA:
-    case HB_SCRIPT_KHOJKI:
-    case HB_SCRIPT_KHUDAWADI:
-    case HB_SCRIPT_MAHAJANI:
-    //case HB_SCRIPT_MANICHAEAN:
-    case HB_SCRIPT_MODI:
-    case HB_SCRIPT_PAHAWH_HMONG:
-    //case HB_SCRIPT_PSALTER_PAHLAVI:
-    case HB_SCRIPT_SIDDHAM:
-    case HB_SCRIPT_TIRHUTA:
 
       /* If the designer designed the font for the 'DFLT' script,
-       * use the default shaper.  Otherwise, use the specific shaper.
+       * use the default shaper.  Otherwise, use the Indic shaper.
        * Note that for some simple scripts, there may not be *any*
        * GSUB/GPOS needed, so there may be no scripts found! */
       if (planner->map.chosen_script[0] == HB_TAG ('D','F','L','T'))
        return &_hb_ot_complex_shaper_default;
       else
-       return &_hb_ot_complex_shaper_use;
+       return &_hb_ot_complex_shaper_sea;
   }
 }