--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/awt/color/ICC_ProfileGray.java Thu Apr 10 16:28:45 2008 -0700
@@ -0,0 +1,150 @@
+/*
+ * Portions Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
+ * 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.
+ */
+
+/**********************************************************************
+ **********************************************************************
+ **********************************************************************
+ *** COPYRIGHT (c) Eastman Kodak Company, 1997 ***
+ *** As an unpublished work pursuant to Title 17 of the United ***
+ *** States Code. All rights reserved. ***
+ **********************************************************************
+ **********************************************************************
+ **********************************************************************/
+
+package java.awt.color;
+
+import java.awt.image.LookupTable;
+import sun.java2d.cmm.ProfileDeferralInfo;
+
+/**
+ *
+ * A subclass of the ICC_Profile class which represents profiles
+ * which meet the following criteria: the color space type of the
+ * profile is TYPE_GRAY and the profile includes the grayTRCTag and
+ * mediaWhitePointTag tags. Examples of this kind of profile are
+ * monochrome input profiles, monochrome display profiles, and
+ * monochrome output profiles. The getInstance methods in the
+ * ICC_Profile class will
+ * return an ICC_ProfileGray object when the above conditions are
+ * met. The advantage of this class is that it provides a lookup
+ * table that Java or native methods may be able to use directly to
+ * optimize color conversion in some cases.
+ * <p>
+ * To transform from a GRAY device profile color space to the CIEXYZ Profile
+ * Connection Space, the device gray component is transformed by
+ * a lookup through the tone reproduction curve (TRC). The result is
+ * treated as the achromatic component of the PCS.
+<pre>
+
+ PCSY = grayTRC[deviceGray]
+
+</pre>
+ * The inverse transform is done by converting the PCS Y components to
+ * device Gray via the inverse of the grayTRC.
+ * <p>
+ */
+
+
+
+public class ICC_ProfileGray
+extends ICC_Profile {
+
+ static final long serialVersionUID = -1124721290732002649L;
+
+ /**
+ * Constructs a new ICC_ProfileGray from a CMM ID.
+ */
+ ICC_ProfileGray(long ID) {
+ super(ID);
+ }
+
+ /**
+ * Constructs a new ICC_ProfileGray from a ProfileDeferralInfo object.
+ */
+ ICC_ProfileGray(ProfileDeferralInfo pdi) {
+ super(pdi);
+ }
+
+
+ /**
+ * Returns a float array of length 3 containing the X, Y, and Z
+ * components of the mediaWhitePointTag in the ICC profile.
+ * @return an array containing the components of the
+ * mediaWhitePointTag in the ICC profile.
+ */
+ public float[] getMediaWhitePoint() {
+ return super.getMediaWhitePoint();
+ }
+
+
+ /**
+ * Returns a gamma value representing the tone reproduction
+ * curve (TRC). If the profile represents the TRC as a table rather
+ * than a single gamma value, then an exception is thrown. In this
+ * case the actual table can be obtained via getTRC(). When
+ * using a gamma value, the PCS Y component is computed as follows:
+<pre>
+
+ gamma
+ PCSY = deviceGray
+
+</pre>
+ * @return the gamma value as a float.
+ * @exception ProfileDataException if the profile does not specify
+ * the TRC as a single gamma value.
+ */
+ public float getGamma() {
+ float theGamma;
+
+ theGamma = super.getGamma(ICC_Profile.icSigGrayTRCTag);
+ return theGamma;
+ }
+
+ /**
+ * Returns the TRC as an array of shorts. If the profile has
+ * specified the TRC as linear (gamma = 1.0) or as a simple gamma
+ * value, this method throws an exception, and the getGamma() method
+ * should be used to get the gamma value. Otherwise the short array
+ * returned here represents a lookup table where the input Gray value
+ * is conceptually in the range [0.0, 1.0]. Value 0.0 maps
+ * to array index 0 and value 1.0 maps to array index length-1.
+ * Interpolation may be used to generate output values for
+ * input values which do not map exactly to an index in the
+ * array. Output values also map linearly to the range [0.0, 1.0].
+ * Value 0.0 is represented by an array value of 0x0000 and
+ * value 1.0 by 0xFFFF, i.e. the values are really unsigned
+ * short values, although they are returned in a short array.
+ * @return a short array representing the TRC.
+ * @exception ProfileDataException if the profile does not specify
+ * the TRC as a table.
+ */
+ public short[] getTRC() {
+ short[] theTRC;
+
+ theTRC = super.getTRC(ICC_Profile.icSigGrayTRCTag);
+ return theTRC;
+ }
+
+}