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-rw-r--r--Build/source/libs/icu/icu-xetex/layout/IndicRearrangementProcessor.cpp398
1 files changed, 398 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-xetex/layout/IndicRearrangementProcessor.cpp b/Build/source/libs/icu/icu-xetex/layout/IndicRearrangementProcessor.cpp
new file mode 100644
index 00000000000..92202450705
--- /dev/null
+++ b/Build/source/libs/icu/icu-xetex/layout/IndicRearrangementProcessor.cpp
@@ -0,0 +1,398 @@
+/*
+ *
+ * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
+ *
+ */
+
+#include "LETypes.h"
+#include "MorphTables.h"
+#include "StateTables.h"
+#include "MorphStateTables.h"
+#include "SubtableProcessor.h"
+#include "StateTableProcessor.h"
+#include "IndicRearrangementProcessor.h"
+#include "LEGlyphStorage.h"
+#include "LESwaps.h"
+
+U_NAMESPACE_BEGIN
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(IndicRearrangementProcessor)
+
+IndicRearrangementProcessor::IndicRearrangementProcessor(const MorphSubtableHeader *morphSubtableHeader)
+ : StateTableProcessor(morphSubtableHeader)
+{
+ indicRearrangementSubtableHeader = (const IndicRearrangementSubtableHeader *) morphSubtableHeader;
+ entryTable = (const IndicRearrangementStateEntry *) ((char *) &stateTableHeader->stHeader + entryTableOffset);
+}
+
+IndicRearrangementProcessor::~IndicRearrangementProcessor()
+{
+}
+
+void IndicRearrangementProcessor::beginStateTable()
+{
+ firstGlyph = 0;
+ lastGlyph = 0;
+}
+
+ByteOffset IndicRearrangementProcessor::processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index)
+{
+ const IndicRearrangementStateEntry *entry = &entryTable[index];
+ ByteOffset newState = SWAPW(entry->newStateOffset);
+ IndicRearrangementFlags flags = (IndicRearrangementFlags) SWAPW(entry->flags);
+
+ if (flags & irfMarkFirst) {
+ firstGlyph = currGlyph;
+ }
+
+ if (flags & irfMarkLast) {
+ lastGlyph = currGlyph;
+ }
+
+ doRearrangementAction(glyphStorage, (IndicRearrangementVerb) (flags & irfVerbMask));
+
+ if (!(flags & irfDontAdvance)) {
+ // XXX: Should handle reverse too...
+ currGlyph += 1;
+ }
+
+ return newState;
+}
+
+void IndicRearrangementProcessor::endStateTable()
+{
+}
+
+void IndicRearrangementProcessor::doRearrangementAction(LEGlyphStorage &glyphStorage, IndicRearrangementVerb verb) const
+{
+ LEGlyphID a, b, c, d;
+ le_int32 ia, ib, ic, id, ix, x;
+ LEErrorCode success = LE_NO_ERROR;
+
+ switch(verb)
+ {
+ case irvNoAction:
+ break;
+
+ case irvxA:
+ a = glyphStorage[firstGlyph];
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ x = firstGlyph + 1;
+
+ while (x <= lastGlyph) {
+ glyphStorage[x - 1] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x - 1, ix, success);
+ x += 1;
+ }
+
+ glyphStorage[lastGlyph] = a;
+ glyphStorage.setCharIndex(lastGlyph, ia, success);
+ break;
+
+ case irvDx:
+ d = glyphStorage[lastGlyph];
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+ x = lastGlyph - 1;
+
+ while (x >= firstGlyph) {
+ glyphStorage[x + 1] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x + 1, ix, success);
+ x -= 1;
+ }
+
+ glyphStorage[firstGlyph] = d;
+ glyphStorage.setCharIndex(firstGlyph, id, success);
+ break;
+
+ case irvDxA:
+ a = glyphStorage[firstGlyph];
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+
+ glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
+ glyphStorage[lastGlyph] = a;
+
+ glyphStorage.setCharIndex(firstGlyph, id, success);
+ glyphStorage.setCharIndex(lastGlyph, ia, success);
+ break;
+
+ case irvxAB:
+ a = glyphStorage[firstGlyph];
+ b = glyphStorage[firstGlyph + 1];
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
+ x = firstGlyph + 2;
+
+ while (x <= lastGlyph) {
+ glyphStorage[x - 2] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x - 2, ix, success);
+ x += 1;
+ }
+
+ glyphStorage[lastGlyph - 1] = a;
+ glyphStorage[lastGlyph] = b;
+
+ glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
+ glyphStorage.setCharIndex(lastGlyph, ib, success);
+ break;
+
+ case irvxBA:
+ a = glyphStorage[firstGlyph];
+ b = glyphStorage[firstGlyph + 1];
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
+ x = firstGlyph + 2;
+
+ while (x <= lastGlyph) {
+ glyphStorage[x - 2] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x - 2, ix, success);
+ x += 1;
+ }
+
+ glyphStorage[lastGlyph - 1] = b;
+ glyphStorage[lastGlyph] = a;
+
+ glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
+ glyphStorage.setCharIndex(lastGlyph, ia, success);
+ break;
+
+ case irvCDx:
+ c = glyphStorage[lastGlyph - 1];
+ d = glyphStorage[lastGlyph];
+ ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+ x = lastGlyph - 2;
+
+ while (x >= firstGlyph) {
+ glyphStorage[x + 2] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x + 2, ix, success);
+ x -= 1;
+ }
+
+ glyphStorage[firstGlyph] = c;
+ glyphStorage[firstGlyph + 1] = d;
+
+ glyphStorage.setCharIndex(firstGlyph, ic, success);
+ glyphStorage.setCharIndex(firstGlyph + 1, id, success);
+ break;
+
+ case irvDCx:
+ c = glyphStorage[lastGlyph - 1];
+ d = glyphStorage[lastGlyph];
+ ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+ x = lastGlyph - 2;
+
+ while (x >= firstGlyph) {
+ glyphStorage[x + 2] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x + 2, ix, success);
+ x -= 1;
+ }
+
+ glyphStorage[firstGlyph] = d;
+ glyphStorage[firstGlyph + 1] = c;
+
+ glyphStorage.setCharIndex(firstGlyph, id, success);
+ glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
+ break;
+
+ case irvCDxA:
+ a = glyphStorage[firstGlyph];
+ c = glyphStorage[lastGlyph - 1];
+ d = glyphStorage[lastGlyph];
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+ x = lastGlyph - 2;
+
+ while (x > firstGlyph) {
+ glyphStorage[x + 1] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x + 1, ix, success);
+ x -= 1;
+ }
+
+ glyphStorage[firstGlyph] = c;
+ glyphStorage[firstGlyph + 1] = d;
+ glyphStorage[lastGlyph] = a;
+
+ glyphStorage.setCharIndex(firstGlyph, ic, success);
+ glyphStorage.setCharIndex(firstGlyph + 1, id, success);
+ glyphStorage.setCharIndex(lastGlyph, ia, success);
+ break;
+
+ case irvDCxA:
+ a = glyphStorage[firstGlyph];
+ c = glyphStorage[lastGlyph - 1];
+ d = glyphStorage[lastGlyph];
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+ x = lastGlyph - 2;
+
+ while (x > firstGlyph) {
+ glyphStorage[x + 1] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x + 1, ix, success);
+ x -= 1;
+ }
+
+ glyphStorage[firstGlyph] = d;
+ glyphStorage[firstGlyph + 1] = c;
+ glyphStorage[lastGlyph] = a;
+
+ glyphStorage.setCharIndex(firstGlyph, id, success);
+ glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
+ glyphStorage.setCharIndex(lastGlyph, ia, success);
+ break;
+
+ case irvDxAB:
+ a = glyphStorage[firstGlyph];
+ b = glyphStorage[firstGlyph + 1];
+ d = glyphStorage[lastGlyph];
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+ x = firstGlyph + 2;
+
+ while (x < lastGlyph) {
+ glyphStorage[x - 2] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x - 2, ix, success);
+ x += 1;
+ }
+
+ glyphStorage[firstGlyph] = d;
+ glyphStorage[lastGlyph - 1] = a;
+ glyphStorage[lastGlyph] = b;
+
+ glyphStorage.setCharIndex(firstGlyph, id, success);
+ glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
+ glyphStorage.setCharIndex(lastGlyph, ib, success);
+ break;
+
+ case irvDxBA:
+ a = glyphStorage[firstGlyph];
+ b = glyphStorage[firstGlyph + 1];
+ d = glyphStorage[lastGlyph];
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+ x = firstGlyph + 2;
+
+ while (x < lastGlyph) {
+ glyphStorage[x - 2] = glyphStorage[x];
+ ix = glyphStorage.getCharIndex(x, success);
+ glyphStorage.setCharIndex(x - 2, ix, success);
+ x += 1;
+ }
+
+ glyphStorage[firstGlyph] = d;
+ glyphStorage[lastGlyph - 1] = b;
+ glyphStorage[lastGlyph] = a;
+
+ glyphStorage.setCharIndex(firstGlyph, id, success);
+ glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
+ glyphStorage.setCharIndex(lastGlyph, ia, success);
+ break;
+
+ case irvCDxAB:
+ a = glyphStorage[firstGlyph];
+ b = glyphStorage[firstGlyph + 1];
+
+ glyphStorage[firstGlyph] = glyphStorage[lastGlyph - 1];
+ glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph];
+
+ glyphStorage[lastGlyph - 1] = a;
+ glyphStorage[lastGlyph] = b;
+
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
+ ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+
+ glyphStorage.setCharIndex(firstGlyph, ic, success);
+ glyphStorage.setCharIndex(firstGlyph + 1, id, success);
+
+ glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
+ glyphStorage.setCharIndex(lastGlyph, ib, success);
+ break;
+
+ case irvCDxBA:
+ a = glyphStorage[firstGlyph];
+ b = glyphStorage[firstGlyph + 1];
+
+ glyphStorage[firstGlyph] = glyphStorage[lastGlyph - 1];
+ glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph];
+
+ glyphStorage[lastGlyph - 1] = b;
+ glyphStorage[lastGlyph] = a;
+
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
+ ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+
+ glyphStorage.setCharIndex(firstGlyph, ic, success);
+ glyphStorage.setCharIndex(firstGlyph + 1, id, success);
+
+ glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
+ glyphStorage.setCharIndex(lastGlyph, ia, success);
+ break;
+
+ case irvDCxAB:
+ a = glyphStorage[firstGlyph];
+ b = glyphStorage[firstGlyph + 1];
+
+ glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
+ glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph - 1];
+
+ glyphStorage[lastGlyph - 1] = a;
+ glyphStorage[lastGlyph] = b;
+
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
+ ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+
+ glyphStorage.setCharIndex(firstGlyph, id, success);
+ glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
+
+ glyphStorage.setCharIndex(lastGlyph - 1, ia, success);
+ glyphStorage.setCharIndex(lastGlyph, ib, success);
+ break;
+
+ case irvDCxBA:
+ a = glyphStorage[firstGlyph];
+ b = glyphStorage[firstGlyph + 1];
+
+ glyphStorage[firstGlyph] = glyphStorage[lastGlyph];
+ glyphStorage[firstGlyph + 1] = glyphStorage[lastGlyph - 1];
+
+ glyphStorage[lastGlyph - 1] = b;
+ glyphStorage[lastGlyph] = a;
+
+ ia = glyphStorage.getCharIndex(firstGlyph, success);
+ ib = glyphStorage.getCharIndex(firstGlyph + 1, success);
+ ic = glyphStorage.getCharIndex(lastGlyph - 1, success);
+ id = glyphStorage.getCharIndex(lastGlyph, success);
+
+ glyphStorage.setCharIndex(firstGlyph, id, success);
+ glyphStorage.setCharIndex(firstGlyph + 1, ic, success);
+
+ glyphStorage.setCharIndex(lastGlyph - 1, ib, success);
+ glyphStorage.setCharIndex(lastGlyph, ia, success);
+ break;
+
+ default:
+ break;
+ }
+}
+
+U_NAMESPACE_END
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