From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 .../classpath/gnu/javax/imageio/png/PNGGamma.java  | 85 ++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 libjava/classpath/gnu/javax/imageio/png/PNGGamma.java

(limited to 'libjava/classpath/gnu/javax/imageio/png/PNGGamma.java')

diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGGamma.java b/libjava/classpath/gnu/javax/imageio/png/PNGGamma.java
new file mode 100644
index 000000000..b9c3f21c3
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGGamma.java
@@ -0,0 +1,85 @@
+/* PNGGamma.java -- GAMA chunk.
+   Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.png;
+
+import java.awt.color.ColorSpace;
+
+/**
+ * A PNG gAMA (gamma) chunk.
+ */
+public class PNGGamma extends PNGChunk
+{
+  private double gamma;
+
+  protected PNGGamma( int type, byte[] data, int crc ) throws PNGException
+  {
+    super( type, data, crc );
+    if( data.length < 4 )
+      throw new PNGException("Unexpectedly short time chunk. ("+data.length+" bytes)");
+    long g = ((data[0] & 0xFF) << 24) | ( (data[1] & 0xFF) << 16 ) |
+      ((data[2] & 0xFF) << 8) | (data[3] & 0xFF);
+    gamma = (double)g;
+    gamma = 100000.0/gamma;
+  }
+
+  public PNGGamma( double g )
+  {
+    super( TYPE_GAMMA );
+    data = new byte[ 4 ];
+    gamma = g;
+    long tmp = (long)(100000.0/gamma);
+    data[0] = (byte)((tmp & 0xFF000000) >> 24);
+    data[1] = (byte)((tmp & 0xFF0000) >> 16);
+    data[2] = (byte)((tmp & 0xFF00) >> 8);
+    data[3] = (byte)(tmp & 0xFF);
+  }
+
+  /**
+   * Returns a ColorSpace object corresponding to this gamma value.
+   */
+  public ColorSpace getColorSpace(boolean grayscale)
+  {
+    // FIXME.
+    return null;
+  }
+
+  public String toString()
+  {
+    return "PNG Gamma chunk, value: "+gamma;
+  }
+}
-- 
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