+++ /dev/null
-
-/*
- * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
- *
- * This file is a modification of the ICU file IndicLayoutEngine.cpp
- * by Jens Herden and Javier Sola for Khmer language
- *
- */
-
-
-#include "OpenTypeLayoutEngine.h"
-#include "KhmerLayoutEngine.h"
-#include "LEGlyphStorage.h"
-#include "KhmerReordering.h"
-
-U_NAMESPACE_BEGIN
-
-UOBJECT_DEFINE_RTTI_IMPLEMENTATION(KhmerOpenTypeLayoutEngine)
-
-KhmerOpenTypeLayoutEngine::KhmerOpenTypeLayoutEngine(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 = KhmerReordering::getFeatureMap(fFeatureMapCount);
- fFeatureOrder = TRUE;
-}
-
-KhmerOpenTypeLayoutEngine::KhmerOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode,
- le_int32 typoFlags, LEErrorCode &success)
- : OpenTypeLayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, success)
-{
- fFeatureMap = KhmerReordering::getFeatureMap(fFeatureMapCount);
- fFeatureOrder = TRUE;
-}
-
-KhmerOpenTypeLayoutEngine::~KhmerOpenTypeLayoutEngine()
-{
- // nothing to do
-}
-
-// Input: characters
-// Output: characters, char indices, tags
-// Returns: output character count
-le_int32 KhmerOpenTypeLayoutEngine::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 = KhmerReordering::reorder(&chars[offset], count, fScriptCode, outChars, glyphStorage);
-
- glyphStorage.adoptGlyphCount(outCharCount);
- return outCharCount;
-}
-
-U_NAMESPACE_END