obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

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.

1 files changed, 127 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGPalette.java b/libjava/classpath/gnu/javax/imageio/png/PNGPalette.java
new file mode 100644
index 000000000..197cad846
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/png/PNGPalette.java
@@ -0,0 +1,127 @@
+/* PNGPalette.java --
+   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;
+import java.awt.image.IndexColorModel;
+
+/**
+ * A PNG Palette chunk.
+ */
+public class PNGPalette extends PNGChunk
+{
+  private int[] red,green,blue;
+
+  protected PNGPalette( int type, byte[] data, int crc ) throws PNGException
+  {
+    super( type, data, crc );
+    double l = data.length;
+    l /= 3.0;
+    // Check if it's divisible by 3. (Yuck.)
+    if( l - Math.floor(l) != 0.0 )
+      throw new PNGException("Invalid size of palette chunk.");
+    int nEntries = (int)l;
+
+    red = new int[ nEntries ];
+    green = new int[ nEntries ];
+    blue = new int[ nEntries ];
+    for( int i = 0; i < nEntries; i++ )
+      {
+        red[i] = (data[ i * 3 ] & 0xFF);
+        green[i] = (data[ i * 3 + 1 ] & 0xFF);
+        blue[i] = (data[ i * 3 + 2] & 0xFF);
+      }
+  }
+
+  public PNGPalette( IndexColorModel cm )
+  {
+    super( TYPE_PALETTE );
+    int n = cm.getMapSize();
+    data = new byte[ n * 3 ];
+    red = new int[ n ];
+    green = new int[ n ];
+    blue = new int[ n ];
+    for(int i = 0; i < n; i++ )
+      {
+        red[i] = data[i * 3] = (byte)cm.getRed(i);
+        green[i] = data[i * 3 + 1] = (byte)cm.getGreen(i);
+        blue[i] = data[i * 3 + 2] = (byte)cm.getBlue(i);
+      }
+  }
+
+  public IndexColorModel getPalette( ColorSpace cs )
+  {
+    int nc = red.length;
+    byte[] r = new byte[nc];
+    byte[] g = new byte[nc];
+    byte[] b = new byte[nc];
+
+    if( cs == null )
+      {
+        for(int i = 0; i < nc; i ++ )
+          {
+            r[i] = (byte)red[i];
+            g[i] = (byte)green[i];
+            b[i] = (byte)blue[i];
+          }
+      }
+    else
+      {
+        for(int i = 0; i < nc; i ++ )
+          {
+            float[] in = new float[3];
+            in[0] = (((float)red[i]) / 255f);
+            in[1] = (((float)green[i]) / 255f);
+            in[2] = (((float)blue[i]) / 255f);
+            float[] out = cs.toRGB( in );
+            r[i] = (byte)( Math.round(out[0] * 255.0) );
+            g[i] = (byte)( Math.round(out[1] * 255.0) );
+            b[i] = (byte)( Math.round(out[2] * 255.0) );
+          }
+      }
+    return new IndexColorModel(8, nc, r, g, b);
+  }
+
+  public String toString()
+  {
+    String s = "PNG Palette:\n";
+    for( int i = 0; i < red.length; i++)
+      s = s + "Index " + i + ": ["+ red[i] +", "+green[i]+", "+blue[i]+"]\n";
+    return s;
+  }
+}