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-rw-r--r--Build/source/libs/icu/icu-src/source/layout/TibetanLayoutEngine.cpp87
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diff --git a/Build/source/libs/icu/icu-src/source/layout/TibetanLayoutEngine.cpp b/Build/source/libs/icu/icu-src/source/layout/TibetanLayoutEngine.cpp
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+/*
+ *
+ * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
+ *
+ * Developed at DIT - Government of Bhutan
+ *
+ * Contact person: Pema Geyleg - <pema_geyleg@druknet.bt>
+ *
+ * This file is a modification of the ICU file KhmerReordering.cpp
+ * by Jens Herden and Javier Sola who have given all their possible rights to IBM and the Governement of Bhutan
+ * A first module for Dzongkha was developed by Karunakar under Panlocalisation funding.
+ * Assistance for this module has been received from Namgay Thinley, Christopher Fynn and Javier Sola
+ *
+ */
+
+
+#include "OpenTypeLayoutEngine.h"
+#include "TibetanLayoutEngine.h"
+#include "LEGlyphStorage.h"
+#include "TibetanReordering.h"
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(TibetanOpenTypeLayoutEngine)
+
+TibetanOpenTypeLayoutEngine::TibetanOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode,
+ le_int32 typoFlags, const LEReferenceTo<GlyphSubstitutionTableHeader> &gsubTable, LEErrorCode &success)
+ : OpenTypeLayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, gsubTable, success)
+{
+ fFeatureMap = TibetanReordering::getFeatureMap(fFeatureMapCount);
+ fFeatureOrder = TRUE;
+}
+
+TibetanOpenTypeLayoutEngine::TibetanOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode,
+ le_int32 typoFlags, LEErrorCode &success)
+ : OpenTypeLayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, success)
+{
+ fFeatureMap = TibetanReordering::getFeatureMap(fFeatureMapCount);
+ fFeatureOrder = TRUE;
+}
+
+TibetanOpenTypeLayoutEngine::~TibetanOpenTypeLayoutEngine()
+{
+ // nothing to do
+}
+
+// Input: characters
+// Output: characters, char indices, tags
+// Returns: output character count
+le_int32 TibetanOpenTypeLayoutEngine::characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
+ LEUnicode *&outChars, LEGlyphStorage &glyphStorage, LEErrorCode &success)
+{
+ if (LE_FAILURE(success)) {
+ return 0;
+ }
+
+ if (chars == NULL || offset < 0 || count < 0 || max < 0 || offset >= max || offset + count > max) {
+ success = LE_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+
+ le_int32 worstCase = count * 3; // worst case is 3 for Khmer TODO check if 2 is enough
+
+ outChars = LE_NEW_ARRAY(LEUnicode, worstCase);
+
+ if (outChars == NULL) {
+ success = LE_MEMORY_ALLOCATION_ERROR;
+ return 0;
+ }
+
+ glyphStorage.allocateGlyphArray(worstCase, rightToLeft, success);
+ glyphStorage.allocateAuxData(success);
+
+ if (LE_FAILURE(success)) {
+ LE_DELETE_ARRAY(outChars);
+ return 0;
+ }
+
+ // NOTE: assumes this allocates featureTags...
+ // (probably better than doing the worst case stuff here...)
+ le_int32 outCharCount = TibetanReordering::reorder(&chars[offset], count, fScriptCode, outChars, glyphStorage);
+
+ glyphStorage.adoptGlyphCount(outCharCount);
+ return outCharCount;
+}
+
+U_NAMESPACE_END