ICU-64232.0.1.tar.gz

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

diff --git a/icuSources/layout/LookupTables.cpp b/icuSources/layout/LookupTables.cpp
deleted file mode 100644 (file)
index 93c93c9..0000000
--- a/icuSources/layout/LookupTables.cpp
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- *
- * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
- *
- */
-
-#include "LETypes.h"
-#include "LayoutTables.h"
-#include "LookupTables.h"
-#include "LESwaps.h"
-
-U_NAMESPACE_BEGIN
-
-/*
-    These are the rolled-up versions of the uniform binary search.
-    Someday, if we need more performance, we can un-roll them.
-    
-    Note: I put these in the base class, so they only have to
-    be written once. Since the base class doesn't define the
-    segment table, these routines assume that it's right after
-    the binary search header.
-
-    Another way to do this is to put each of these routines in one
-    of the derived classes, and implement it in the others by casting
-    the "this" pointer to the type that has the implementation.
-*/ 
-const LookupSegment *BinarySearchLookupTable::lookupSegment(const LETableReference &base, const LookupSegment *segments, LEGlyphID glyph, LEErrorCode &success) const
-{
-    
-    le_int16  unity = SWAPW(unitSize);
-    le_int16  probe = SWAPW(searchRange);
-    le_int16  extra = SWAPW(rangeShift);
-    TTGlyphID ttGlyph = (TTGlyphID) LE_GET_GLYPH(glyph);
-    LEReferenceTo<LookupSegment> entry(base, success, segments);
-    LEReferenceTo<LookupSegment> trial(entry, success, extra);
-
-    if(LE_FAILURE(success)) return NULL;
-
-    if (SWAPW(trial->lastGlyph) <= ttGlyph) {
-        entry = trial;
-    }
-
-    while (probe > unity && LE_SUCCESS(success)) {
-        probe >>= 1;
-        trial = entry; // copy
-        trial.addOffset(probe, success);
-
-        if (SWAPW(trial->lastGlyph) <= ttGlyph) {
-            entry = trial;
-        }
-    }
-
-    if (SWAPW(entry->firstGlyph) <= ttGlyph) {
-      return entry.getAlias();
-    }
-
-    return NULL;
-}
-
-const LookupSingle *BinarySearchLookupTable::lookupSingle(const LETableReference &base, const LookupSingle *entries, LEGlyphID glyph, LEErrorCode &success) const
-{
-    le_int16  unity = SWAPW(unitSize);
-    le_int16  probe = SWAPW(searchRange);
-    le_int16  extra = SWAPW(rangeShift);
-    TTGlyphID ttGlyph = (TTGlyphID) LE_GET_GLYPH(glyph);
-    LEReferenceTo<LookupSingle> entry(base, success, entries);
-    LEReferenceTo<LookupSingle> trial(entry, success, extra);
-
-    if (SWAPW(trial->glyph) <= ttGlyph) {
-        entry = trial;
-    }
-
-    while (probe > unity && LE_SUCCESS(success)) {
-        probe >>= 1;
-        trial = entry;
-        trial.addOffset(probe, success);
-
-        if (SWAPW(trial->glyph) <= ttGlyph) {
-            entry = trial;
-        }
-    }
-
-    if (SWAPW(entry->glyph) == ttGlyph) {
-      return entry.getAlias();
-    }
-
-    return NULL;
-}
-
-U_NAMESPACE_END