Author: lehmi
Date: Sun Sep 12 15:47:54 2010
New Revision: 996331
URL: http://svn.apache.org/viewvc?rev=996331&view=rev
Log:
PDFBOX-826: reduced number of array accesses to increase the performance as
suggested by Timo Boehme
Modified:
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/color/ColorSpaceCMYK.java
Modified:
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/color/ColorSpaceCMYK.java
URL:
http://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/color/ColorSpaceCMYK.java?rev=996331&r1=996330&r2=996331&view=diff
==============================================================================
---
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/color/ColorSpaceCMYK.java
(original)
+++
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/graphics/color/ColorSpaceCMYK.java
Sun Sep 12 15:47:54 2010
@@ -137,15 +137,12 @@ public class ColorSpaceCMYK extends Colo
if (colorvalue != null && colorvalue.length == 4)
{
// First of all we have to convert from CMYK to CMY
- float c = ( colorvalue[0] * ( 1 - colorvalue[3] ) + colorvalue[3]
);
- float m = ( colorvalue[1] * ( 1 - colorvalue[3] ) + colorvalue[3]
);
- float y = ( colorvalue[2] * ( 1 - colorvalue[3] ) + colorvalue[3]
);
+ float k = colorvalue[3];
+ float c = ( colorvalue[0] * ( 1 - k ) + k );
+ float m = ( colorvalue[1] * ( 1 - k ) + k );
+ float y = ( colorvalue[2] * ( 1 - k ) + k );
// Now we have to convert from CMY to RGB
- float[] rgbvalues = new float[3];
- rgbvalues[0] = 1 - c;
- rgbvalues[1] = 1 - m;
- rgbvalues[2] = 1 - y;
- return rgbvalues;
+ return new float[] { 1 - c, 1 - m, 1 - y };
}
return null;
}
