ICU-59180.0.1.tar.gz

[apple/icu.git] / icuSources / layout / IndicReordering.h

diff --git a/icuSources/layout/IndicReordering.h b/icuSources/layout/IndicReordering.h
index abd1b72239295ca8edc0eb0c8ca2d441f35f4cb6..8b2fdfa5583d362b69002f221adf5fa6483fc57a 100644 (file)
--- a/icuSources/layout/IndicReordering.h
+++ b/icuSources/layout/IndicReordering.h
@@ -1,6 +1,6 @@
 /*
  *
- * (C) Copyright IBM Corp. 1998-2008 - All Rights Reserved
+ * (C) Copyright IBM Corp. 1998-2011 - All Rights Reserved
  *
  */
 
@@ -50,6 +50,7 @@ U_NAMESPACE_BEGIN
 #define CF_BELOW_BASE    0x10000000U
 #define CF_POST_BASE     0x08000000U
 #define CF_LENGTH_MARK   0x04000000U
+#define CF_PRE_BASE      0x02000000U
 
 #define CF_POS_BEFORE    0x00300000U
 #define CF_POS_BELOW     0x00200000U
@@ -70,16 +71,27 @@ U_NAMESPACE_BEGIN
 #define SF_POST_BASE_LIMIT_MASK  0x0000FFFFU
 #define SF_NO_POST_BASE_LIMIT    0x00007FFFU
 
-typedef LEUnicode SplitMatra[3];
+#define SM_MAX_PIECES 3
+
+typedef LEUnicode SplitMatra[SM_MAX_PIECES];
 
 class MPreFixups;
 class LEGlyphStorage;
 
+// Dynamic Properties ( v2 fonts only )
+typedef le_uint32 DynamicProperties;
+
+#define DP_REPH               0x80000000U
+#define DP_HALF               0x40000000U
+#define DP_PREF               0x20000000U
+#define DP_BLWF               0x10000000U
+#define DP_PSTF               0x08000000U
+
 struct IndicClassTable
 {
     typedef le_uint32 CharClass;
     typedef le_uint32 ScriptFlags;
-
+    
     LEUnicode firstChar;
     LEUnicode lastChar;
     le_int32 worstCaseExpansion;
@@ -108,6 +120,8 @@ struct IndicClassTable
     inline le_bool hasPostOrBelowBaseForm(LEUnicode ch) const;
     inline le_bool hasPostBaseForm(LEUnicode ch) const;
     inline le_bool hasBelowBaseForm(LEUnicode ch) const;
+    inline le_bool hasAboveBaseForm(LEUnicode ch) const;
+    inline le_bool hasPreBaseForm(LEUnicode ch) const;
 
     inline static le_bool isVowelModifier(CharClass charClass);
     inline static le_bool isStressMark(CharClass charClass);
@@ -123,6 +137,8 @@ struct IndicClassTable
     inline static le_bool hasPostOrBelowBaseForm(CharClass charClass);
     inline static le_bool hasPostBaseForm(CharClass charClass);
     inline static le_bool hasBelowBaseForm(CharClass charClass);
+    inline static le_bool hasAboveBaseForm(CharClass charClass);
+    inline static le_bool hasPreBaseForm(CharClass charClass);
 
     static const IndicClassTable *getScriptClassTable(le_int32 scriptCode);
 };
@@ -135,12 +151,23 @@ public:
 
     static le_int32 reorder(const LEUnicode *theChars, le_int32 charCount, le_int32 scriptCode,
         LEUnicode *outChars, LEGlyphStorage &glyphStorage,
-        MPreFixups **outMPreFixups);
+        MPreFixups **outMPreFixups, LEErrorCode& success);
+
+    static void adjustMPres(MPreFixups *mpreFixups, LEGlyphStorage &glyphStorage, LEErrorCode& success);
 
-    static void adjustMPres(MPreFixups *mpreFixups, LEGlyphStorage &glyphStorage);
+    static le_int32 v2process(const LEUnicode *theChars, le_int32 charCount, le_int32 scriptCode,
+        LEUnicode *outChars, LEGlyphStorage &glyphStorage);
 
     static const FeatureMap *getFeatureMap(le_int32 &count);
 
+       static const FeatureMap *getv2FeatureMap(le_int32 &count);
+
+    static void applyPresentationForms(LEGlyphStorage &glyphStorage, le_int32 count);
+
+    static void finalReordering(LEGlyphStorage &glyphStorage, le_int32 count);
+
+    static void getDynamicProperties(DynamicProperties *dProps, const IndicClassTable *classTable);
+
 private:
     // do not instantiate
     IndicReordering();
@@ -233,11 +260,21 @@ inline le_bool IndicClassTable::hasPostBaseForm(CharClass charClass)
     return (charClass & CF_POST_BASE) != 0;
 }
 
+inline le_bool IndicClassTable::hasPreBaseForm(CharClass charClass)
+{
+    return (charClass & CF_PRE_BASE) != 0;
+}
+
 inline le_bool IndicClassTable::hasBelowBaseForm(CharClass charClass)
 {
     return (charClass & CF_BELOW_BASE) != 0;
 }
 
+inline le_bool IndicClassTable::hasAboveBaseForm(CharClass charClass)
+{
+    return ((charClass & CF_POS_MASK) == CF_POS_ABOVE);
+}
+
 inline le_bool IndicClassTable::isVowelModifier(LEUnicode ch) const
 {
     return isVowelModifier(getCharClass(ch));
@@ -308,5 +345,14 @@ inline le_bool IndicClassTable::hasBelowBaseForm(LEUnicode ch) const
     return hasBelowBaseForm(getCharClass(ch));
 }
 
+inline le_bool IndicClassTable::hasPreBaseForm(LEUnicode ch) const
+{
+    return hasPreBaseForm(getCharClass(ch));
+}
+
+inline le_bool IndicClassTable::hasAboveBaseForm(LEUnicode ch) const
+{
+    return hasAboveBaseForm(getCharClass(ch));
+}
 U_NAMESPACE_END
 #endif