1 files changed, 113 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/javax/imageio/jpeg/YCbCr_ColorSpace.java b/gcc-4.4.3/libjava/classpath/gnu/javax/imageio/jpeg/YCbCr_ColorSpace.java
new file mode 100644
index 000000000..a3970b7fa
--- /dev/null
+++ b/gcc-4.4.3/libjava/classpath/gnu/javax/imageio/jpeg/YCbCr_ColorSpace.java
@@ -0,0 +1,113 @@
+/* YCbCr_ColorSpace.java --
+   Copyright (C)  2005  Free Software Foundation, Inc.
+
+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.jpeg;
+
+import java.awt.color.ColorSpace;
+
+public class YCbCr_ColorSpace extends ColorSpace {
+  public YCbCr_ColorSpace() {
+    super(ColorSpace.TYPE_YCbCr, 3);
+  }
+
+  public float[] fromCIEXYZ(float[] data) {
+    return(new float[data.length]);
+  }
+
+  public float[] toCIEXYZ(float[] data) {
+    return(new float[data.length]);
+  }
+
+  public float[] fromRGB(float[] data) {
+    return(new float[data.length]);
+  }
+
+  /* YCbCr to RGB range 0 to 1 */
+  public float[] toRGB(float[] data) {
+    float[] dest = new float[3];
+
+    data[0] *= 255;
+    data[1] *= 255;
+    data[2] *= 255;
+
+    dest[0] = (float)data[0] + (float)1.402*((float)data[2]-(float)128);
+    dest[1] = (float)data[0] - (float)0.34414*((float)data[1]-(float)128) - (float)0.71414*((float)data[2]-(float)128);
+    dest[2] = (float)data[0] + (float)1.772*((float)data[1]-(float)128);
+
+    dest[0] /= 255;
+    dest[1] /= 255;
+    dest[2] /= 255;
+
+    //dest[0] = ((float)1.164*((float)data[0]*(float)255 - (float)16) + (float)1.596*((float)data[2]*(float)255 - (float)128))/(float)255;
+    //dest[1] = ((float)1.164*((float)data[0]*(float)255 - (float)16) - (float)0.813*((float)data[2]*(float)255 - (float)128) - (float)0.392*(data[1]*255 - 128))/(float)255;
+    //dest[2] = ((float)1.164*((float)data[0]*(float)255 - (float)16) + (float)2.017*((float)data[1]*(float)255 - (float)128))/(float)255;
+
+    //System.err.println("toRGB values received: 0: "+data[0]+" 1: "+data[1]+" 2: "+data[2]+" sent: 0: "+dest[0]+" 1: "+dest[1]+" 2: "+dest[2]);
+    if(dest[0] < (float)0)
+      dest[0] = 0;
+    if(dest[1] < (float)0)
+      dest[1] = 0;
+    if(dest[2] < (float)0)
+      dest[2] = 0;
+
+    if(dest[0] > (float)1)
+      dest[0] = 1;
+    if(dest[1] > (float)1)
+      dest[1] = 1;
+    if(dest[2] > (float)1)
+      dest[2] = 1;
+
+
+    return(dest);
+  }
+
+  /* RGB to YCbCr range 0-255 */
+  public static float[] toYCbCr(float[] data) {
+    float[] dest = new float[3];
+    //dest[0] = (float)0.257*data[0] + (float)0.504*data[1] + (float)0.098*data[2] + 16;
+    //dest[1] = (float)-0.148*data[0] - (float)0.291*data[1] + (float)0.439*data[2] + 128;
+    //dest[2] = (float)0.439*data[0] - (float)0.368*data[1] - (float)0.071*data[2] + 128;
+
+    dest[0] = (float)((0.299 * (float)data[0] + 0.587 * (float)data[1] + 0.114 * (float)data[2]));
+    dest[1] = 128 + (float)((-0.16874 * (float)data[0] - 0.33126 * (float)data[1] + 0.5 * (float)data[2]));
+    dest[2] = 128 + (float)((0.5 * (float)data[0] - 0.41869 * (float)data[1] - 0.08131 * (float)data[2]));
+
+
+    return(dest);
+
+  }
+}