diff options
Diffstat (limited to 'Build/source/libs/icu/icu-src/source/layout/LigatureSubstProc.cpp')
-rw-r--r-- | Build/source/libs/icu/icu-src/source/layout/LigatureSubstProc.cpp | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/Build/source/libs/icu/icu-src/source/layout/LigatureSubstProc.cpp b/Build/source/libs/icu/icu-src/source/layout/LigatureSubstProc.cpp deleted file mode 100644 index 53f6f5a34f6..00000000000 --- a/Build/source/libs/icu/icu-src/source/layout/LigatureSubstProc.cpp +++ /dev/null @@ -1,143 +0,0 @@ -/* - * - * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved - * - */ - -#include "LETypes.h" -#include "MorphTables.h" -#include "StateTables.h" -#include "MorphStateTables.h" -#include "SubtableProcessor.h" -#include "StateTableProcessor.h" -#include "LigatureSubstProc.h" -#include "LEGlyphStorage.h" -#include "LESwaps.h" - -U_NAMESPACE_BEGIN - -#define ExtendedComplement(m) ((le_int32) (~((le_uint32) (m)))) -#define SignBit(m) ((ExtendedComplement(m) >> 1) & (le_int32)(m)) -#define SignExtend(v,m) (((v) & SignBit(m))? ((v) | ExtendedComplement(m)): (v)) - -UOBJECT_DEFINE_RTTI_IMPLEMENTATION(LigatureSubstitutionProcessor) - - LigatureSubstitutionProcessor::LigatureSubstitutionProcessor(const LEReferenceTo<MorphSubtableHeader> &morphSubtableHeader, LEErrorCode &success) -: StateTableProcessor(morphSubtableHeader, success), ligatureSubstitutionHeader(morphSubtableHeader, success) -{ - if(LE_FAILURE(success)) return; - ligatureActionTableOffset = SWAPW(ligatureSubstitutionHeader->ligatureActionTableOffset); - componentTableOffset = SWAPW(ligatureSubstitutionHeader->componentTableOffset); - ligatureTableOffset = SWAPW(ligatureSubstitutionHeader->ligatureTableOffset); - - entryTable = LEReferenceToArrayOf<LigatureSubstitutionStateEntry>(stHeader, success, entryTableOffset, LE_UNBOUNDED_ARRAY); -} - -LigatureSubstitutionProcessor::~LigatureSubstitutionProcessor() -{ -} - -void LigatureSubstitutionProcessor::beginStateTable() -{ - m = -1; -} - -ByteOffset LigatureSubstitutionProcessor::processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index) -{ - LEErrorCode success = LE_NO_ERROR; - const LigatureSubstitutionStateEntry *entry = entryTable.getAlias(index, success); - - ByteOffset newState = SWAPW(entry->newStateOffset); - le_int16 flags = SWAPW(entry->flags); - - if (flags & lsfSetComponent) { - if (++m >= nComponents) { - m = 0; - } - - componentStack[m] = currGlyph; - } else if ( m == -1) { - // bad font- skip this glyph. - currGlyph++; - return newState; - } - - ByteOffset actionOffset = flags & lsfActionOffsetMask; - - if (actionOffset != 0) { - LEReferenceTo<LigatureActionEntry> ap(stHeader, success, actionOffset); - LigatureActionEntry action; - le_int32 offset, i = 0; - le_int32 stack[nComponents]; - le_int16 mm = -1; - - do { - le_uint32 componentGlyph = componentStack[m--]; - - action = SWAPL(*ap.getAlias()); - ap.addObject(success); // ap++ - - if (m < 0) { - m = nComponents - 1; - } - - offset = action & lafComponentOffsetMask; - if (offset != 0) { - LEReferenceToArrayOf<le_int16> offsetTable(stHeader, success, 2 * SignExtend(offset, lafComponentOffsetMask), LE_UNBOUNDED_ARRAY); - - if(LE_FAILURE(success)) { - currGlyph++; - LE_DEBUG_BAD_FONT("off end of ligature substitution header"); - return newState; // get out! bad font - } - if(componentGlyph > (le_uint32)glyphStorage.getGlyphCount()) { - LE_DEBUG_BAD_FONT("preposterous componentGlyph"); - currGlyph++; - return newState; // get out! bad font - } - i += SWAPW(offsetTable.getObject(LE_GET_GLYPH(glyphStorage[componentGlyph]), success)); - - if (action & (lafLast | lafStore)) { - LEReferenceTo<TTGlyphID> ligatureOffset(stHeader, success, i); - TTGlyphID ligatureGlyph = SWAPW(*ligatureOffset.getAlias()); - - glyphStorage[componentGlyph] = LE_SET_GLYPH(glyphStorage[componentGlyph], ligatureGlyph); - if(mm==nComponents) { - LE_DEBUG_BAD_FONT("exceeded nComponents"); - mm--; // don't overrun the stack. - } - stack[++mm] = componentGlyph; - i = 0; - } else { - glyphStorage[componentGlyph] = LE_SET_GLYPH(glyphStorage[componentGlyph], 0xFFFF); - } - } -#if LE_ASSERT_BAD_FONT - if(m<0) { - LE_DEBUG_BAD_FONT("m<0") - } -#endif - } while (!(action & lafLast) && (m>=0) ); // stop if last bit is set, or if run out of items - - while (mm >= 0) { - if (++m >= nComponents) { - m = 0; - } - - componentStack[m] = stack[mm--]; - } - } - - if (!(flags & lsfDontAdvance)) { - // should handle reverse too! - currGlyph += 1; - } - - return newState; -} - -void LigatureSubstitutionProcessor::endStateTable() -{ -} - -U_NAMESPACE_END |