[Bug classpath/22919] java.awt.image.ColorModel bits calculation error

[gcc-bugzilla at gcc dot gnu dot org]

The calculation of the number of bits in the ColorModel(int bits) constructor
is incorrect.
Instead of multiplying by 4, it should divide the bits by 4, in order to be
compatible with sun's implementation.

Here is the REVERSE patch.

--- javaawtimageColorModel.java Sun Mar 06 10:03:13 2005
+++ D:eprcvsworkclasspathjavaawtimageColorModel.java    Tue Nov 16 23:10:27
2004
@@ -111,13 +111,12 @@
         * Constructs the default color model.  The default color model 
         * can be obtained by calling <code>getRGBdefault</code> of this
         * class.
-        * @param b the number of bits wide used for bit size of pixel values
+   * @param bits the number of bits wide used for bit size of pixel values
         */
   public ColorModel(int bits)
   {
-      // @classpath-bugfix Fix difference between Sun's class and this class. 
-    this(bits, // total bits, sRGB, four channels
-        nArray(bits / 4, 4), // bits for each channel
+    this(bits * 4, // total bits, sRGB, four channels
+        nArray(bits, 4), // bits for each channel
         ColorSpace.getInstance(ColorSpace.CS_sRGB), // sRGB
         true, // has alpha
         false, // not premultiplied


------- Comment #1 from from-classpath at savannah dot gnu dot org  2005-05-17 
00:15 -------
Ok, I'll commit this.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22919