--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/native/sun/font/layout/DeviceTables.cpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,64 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+/*
+ *
+ * (C) Copyright IBM Corp. 1998 - 2005 - All Rights Reserved
+ *
+ */
+
+#include "LETypes.h"
+#include "OpenTypeTables.h"
+#include "DeviceTables.h"
+#include "LESwaps.h"
+
+const le_uint16 DeviceTable::fieldMasks[] = {0x0003, 0x000F, 0x00FF};
+const le_uint16 DeviceTable::fieldSignBits[] = {0x0002, 0x0008, 0x0080};
+const le_uint16 DeviceTable::fieldBits[] = { 2, 4, 8};
+
+le_int16 DeviceTable::getAdjustment(le_uint16 ppem) const
+{
+ le_uint16 start = SWAPW(startSize);
+ le_uint16 format = SWAPW(deltaFormat) - 1;
+ le_int16 result = 0;
+
+ if (ppem >= start && ppem <= SWAPW(endSize)) {
+ le_uint16 sizeIndex = ppem - start;
+ le_uint16 bits = fieldBits[format];
+ le_uint16 count = 16 / bits;
+ le_uint16 word = SWAPW(deltaValues[sizeIndex / count]);
+ le_uint16 fieldIndex = sizeIndex % count;
+ le_uint16 shift = 16 - (bits * (fieldIndex + 1));
+ le_uint16 field = (word >> shift) & fieldMasks[format];
+
+ result = field;
+
+ if ((field & fieldSignBits[format]) != 0) {
+ result |= ~ fieldMasks[format];
+ }
+ }
+
+ return result;
+}