ICU-62141.0.1.tar.gz

[apple/icu.git] / icuSources / layout / IndicLayoutEngine.cpp

diff --git a/icuSources/layout/IndicLayoutEngine.cpp b/icuSources/layout/IndicLayoutEngine.cpp
index 3b776a0d5ef9584e4309c396e15e9621f2623a28..cc9815cf8f553546176ed40503665e3b1bc07ecf 100644 (file)
--- a/icuSources/layout/IndicLayoutEngine.cpp
+++ b/icuSources/layout/IndicLayoutEngine.cpp
@@ -1,7 +1,7 @@
 
 /*
  *
- * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
+ * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
  *
  */
 
@@ -25,16 +25,25 @@ U_NAMESPACE_BEGIN
 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(IndicOpenTypeLayoutEngine)
 
 IndicOpenTypeLayoutEngine::IndicOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode,
-                    const GlyphSubstitutionTableHeader *gsubTable)
-    : OpenTypeLayoutEngine(fontInstance, scriptCode, languageCode, gsubTable), fMPreFixups(NULL)
+                                                     le_int32 typoFlags, le_bool version2, const LEReferenceTo<GlyphSubstitutionTableHeader> &gsubTable, LEErrorCode &success)
+    : OpenTypeLayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, gsubTable, success), fMPreFixups(NULL)
 {
-    fFeatureOrder = IndicReordering::getFeatureOrder();
+       if ( version2 ) {
+               fFeatureMap = IndicReordering::getv2FeatureMap(fFeatureMapCount);
+       } else {
+        fFeatureMap = IndicReordering::getFeatureMap(fFeatureMapCount);
+       }
+       fFeatureOrder = TRUE;
+    fVersion2 = version2;
+    fFilterZeroWidth = IndicReordering::getFilterZeroWidth(fScriptCode);
 }
 
-IndicOpenTypeLayoutEngine::IndicOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode)
-    : OpenTypeLayoutEngine(fontInstance, scriptCode, languageCode), fMPreFixups(NULL)
+IndicOpenTypeLayoutEngine::IndicOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode, le_int32 typoFlags, LEErrorCode &success)
+    : OpenTypeLayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, success), fMPreFixups(NULL)
 {
-    fFeatureOrder = IndicReordering::getFeatureOrder();
+    fFeatureMap = IndicReordering::getFeatureMap(fFeatureMapCount);
+    fFeatureOrder = TRUE;
+       fVersion2 =  FALSE;
 }
 
 IndicOpenTypeLayoutEngine::~IndicOpenTypeLayoutEngine()
@@ -62,8 +71,13 @@ le_int32 IndicOpenTypeLayoutEngine::glyphProcessing(const LEUnicode chars[], le_
         return 0;
     }
 
-    IndicReordering::adjustMPres(fMPreFixups, glyphStorage);
-
+    if (fVersion2) {
+        IndicReordering::finalReordering(glyphStorage,retCount);
+        IndicReordering::applyPresentationForms(glyphStorage,retCount);
+        OpenTypeLayoutEngine::glyphSubstitution(count,max, rightToLeft, glyphStorage, success);
+    } else {
+        IndicReordering::adjustMPres(fMPreFixups, glyphStorage, success);
+    }
     return retCount;
 }
 
@@ -101,7 +115,18 @@ le_int32 IndicOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[],
 
     // NOTE: assumes this allocates featureTags...
     // (probably better than doing the worst case stuff here...)
-    le_int32 outCharCount = IndicReordering::reorder(&chars[offset], count, fScriptCode, outChars, glyphStorage, &fMPreFixups);
+
+    le_int32 outCharCount;
+    if (fVersion2) {
+        outCharCount = IndicReordering::v2process(&chars[offset], count, fScriptCode, outChars, glyphStorage);
+    } else {
+        outCharCount = IndicReordering::reorder(&chars[offset], count, fScriptCode, outChars, glyphStorage, &fMPreFixups, success);
+    }
+
+    if (LE_FAILURE(success)) {
+        LE_DELETE_ARRAY(outChars);
+        return 0;
+    }
 
     glyphStorage.adoptGlyphCount(outCharCount);
     return outCharCount;