ICU-64232.0.1.tar.gz

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

diff --git a/icuSources/layout/PairPositioningSubtables.cpp b/icuSources/layout/PairPositioningSubtables.cpp
deleted file mode 100644 (file)
index 2ff3383..0000000
--- a/icuSources/layout/PairPositioningSubtables.cpp
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- *
- * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
- *
- */
-
-#include "LETypes.h"
-#include "LEFontInstance.h"
-#include "OpenTypeTables.h"
-#include "GlyphPositioningTables.h"
-#include "PairPositioningSubtables.h"
-#include "ValueRecords.h"
-#include "GlyphIterator.h"
-#include "OpenTypeUtilities.h"
-#include "LESwaps.h"
-
-U_NAMESPACE_BEGIN
-
-le_uint32 PairPositioningSubtable::process(const LEReferenceTo<PairPositioningSubtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
-{
-    switch(SWAPW(subtableFormat))
-    {
-    case 0:
-        return 0;
-
-    case 1:
-    {
-      const LEReferenceTo<PairPositioningFormat1Subtable> subtable(base, success, (const PairPositioningFormat1Subtable *) this);
-
-      if(LE_SUCCESS(success))
-      return subtable->process(subtable, glyphIterator, fontInstance, success);
-      else
-        return 0;
-    }
-
-    case 2:
-    {
-      const LEReferenceTo<PairPositioningFormat2Subtable> subtable(base, success, (const PairPositioningFormat2Subtable *) this);
-
-      if(LE_SUCCESS(success))
-      return subtable->process(subtable, glyphIterator, fontInstance, success);
-      else
-        return 0;
-    }
-    default:
-      return 0;
-    }
-}
-
-le_uint32 PairPositioningFormat1Subtable::process(const LEReferenceTo<PairPositioningFormat1Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
-{
-    LEGlyphID firstGlyph = glyphIterator->getCurrGlyphID();
-    le_int32 coverageIndex = getGlyphCoverage(base, firstGlyph, success);
-    GlyphIterator tempIterator(*glyphIterator);
-
-    if (coverageIndex >= 0 && glyphIterator->next()) {
-        Offset pairSetTableOffset = SWAPW(pairSetTableOffsetArray[coverageIndex]);
-        PairSetTable *pairSetTable = (PairSetTable *) ((char *) this + pairSetTableOffset);
-        le_uint16 pairValueCount = SWAPW(pairSetTable->pairValueCount);
-        le_int16 valueRecord1Size = ValueRecord::getSize(SWAPW(valueFormat1));
-        le_int16 valueRecord2Size = ValueRecord::getSize(SWAPW(valueFormat2));
-        le_int16 recordSize = sizeof(PairValueRecord) - sizeof(ValueRecord) + valueRecord1Size + valueRecord2Size;
-        LEGlyphID secondGlyph = glyphIterator->getCurrGlyphID();
-        const PairValueRecord *pairValueRecord = NULL;
-
-        if (pairValueCount != 0) {
-            pairValueRecord = findPairValueRecord((TTGlyphID) LE_GET_GLYPH(secondGlyph), pairSetTable->pairValueRecordArray, pairValueCount, recordSize);
-        }
-
-        if (pairValueRecord == NULL) {
-            return 0;
-        }
-
-        if (valueFormat1 != 0) {
-            pairValueRecord->valueRecord1.adjustPosition(SWAPW(valueFormat1), (char *) this, tempIterator, fontInstance);
-        }
-
-        if (valueFormat2 != 0) {
-            const ValueRecord *valueRecord2 = (const ValueRecord *) ((char *) &pairValueRecord->valueRecord1 + valueRecord1Size);
-
-            valueRecord2->adjustPosition(SWAPW(valueFormat2), (char *) this, *glyphIterator, fontInstance);
-        }
-
-        // back up glyphIterator so second glyph can be
-        // first glyph in the next pair
-        glyphIterator->prev();
-        return 1;
-    }
-
-    return 0;
-}
-
-le_uint32 PairPositioningFormat2Subtable::process(const LEReferenceTo<PairPositioningFormat2Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
-{
-    LEGlyphID firstGlyph = glyphIterator->getCurrGlyphID();
-    le_int32 coverageIndex = getGlyphCoverage(base, firstGlyph, success);
-    GlyphIterator tempIterator(*glyphIterator);
-
-    if (coverageIndex >= 0 && glyphIterator->next()) {
-        LEGlyphID secondGlyph = glyphIterator->getCurrGlyphID();
-        const ClassDefinitionTable *classDef1 = (const ClassDefinitionTable *) ((char *) this + SWAPW(classDef1Offset));
-        const ClassDefinitionTable *classDef2 = (const ClassDefinitionTable *) ((char *) this + SWAPW(classDef2Offset));
-        le_int32 class1 = classDef1->getGlyphClass(firstGlyph);
-        le_int32 class2 = classDef2->getGlyphClass(secondGlyph);
-        le_int16 valueRecord1Size = ValueRecord::getSize(SWAPW(valueFormat1));
-        le_int16 valueRecord2Size = ValueRecord::getSize(SWAPW(valueFormat2));
-        le_int16 class2RecordSize = valueRecord1Size + valueRecord2Size;
-        le_int16 class1RecordSize = class2RecordSize * SWAPW(class2Count);
-        const Class1Record *class1Record = (const Class1Record *) ((char *) class1RecordArray + (class1RecordSize * class1));
-        const Class2Record *class2Record = (const Class2Record *) ((char *) class1Record->class2RecordArray + (class2RecordSize * class2));
-
-
-        if (valueFormat1 != 0) {
-            class2Record->valueRecord1.adjustPosition(SWAPW(valueFormat1), (char *) this, tempIterator, fontInstance);
-        }
-
-        if (valueFormat2 != 0) {
-            const ValueRecord *valueRecord2 = (const ValueRecord *) ((char *) &class2Record->valueRecord1 + valueRecord1Size);
-
-            valueRecord2->adjustPosition(SWAPW(valueFormat2), (const char *) this, *glyphIterator, fontInstance);
-        }
-
-        // back up glyphIterator so second glyph can be
-        // first glyph in the next pair
-        glyphIterator->prev();
-        return 1;
-    }
-
-    return 0;
-}
-
-const PairValueRecord *PairPositioningFormat1Subtable::findPairValueRecord(TTGlyphID glyphID, const PairValueRecord *records, le_uint16 recordCount, le_uint16 recordSize) const
-{
-#if 1
-       // The OpenType spec. says that the ValueRecord table is
-       // sorted by secondGlyph. Unfortunately, there are fonts
-       // around that have an unsorted ValueRecord table.
-       const PairValueRecord *record = records;
-
-       for(le_int32 r = 0; r < recordCount; r += 1) {
-               if (SWAPW(record->secondGlyph) == glyphID) {
-                       return record;
-               }
-
-               record = (const PairValueRecord *) ((char *) record + recordSize);
-       }
-#else
-    le_uint8 bit = OpenTypeUtilities::highBit(recordCount);
-    le_uint16 power = 1 << bit;
-    le_uint16 extra = (recordCount - power) * recordSize;
-    le_uint16 probe = power * recordSize;
-    const PairValueRecord *record = records;
-    const PairValueRecord *trial = (const PairValueRecord *) ((char *) record + extra);
-
-    if (SWAPW(trial->secondGlyph) <= glyphID) {
-        record = trial;
-    }
-
-    while (probe > recordSize) {
-        probe >>= 1;
-        trial = (const PairValueRecord *) ((char *) record + probe);
-
-        if (SWAPW(trial->secondGlyph) <= glyphID) {
-            record = trial;
-        }
-    }
-
-    if (SWAPW(record->secondGlyph) == glyphID) {
-        return record;
-    }
-#endif
-
-    return NULL;
-}
-
-U_NAMESPACE_END