[Pixelle-commit] SF.net SVN: pixelle: [64] trunk/pixelle/src/com/mebigfatguy/pixelle

[<dbr...@us...>]

Revision: 64
          http://pixelle.svn.sourceforge.net/pixelle/?rev=64&view=rev
Author:   dbrosius
Date:     2008-06-22 22:58:47 -0700 (Sun, 22 Jun 2008)

Log Message:
-----------
get rid of the strips, and improve performance

Modified Paths:
--------------
    trunk/pixelle/src/com/mebigfatguy/pixelle/PixelleEval.java
    trunk/pixelle/src/com/mebigfatguy/pixelle/PixelleImage.java

Modified: trunk/pixelle/src/com/mebigfatguy/pixelle/PixelleEval.java
===================================================================
--- trunk/pixelle/src/com/mebigfatguy/pixelle/PixelleEval.java	2008-06-23 05:53:42 UTC (rev 63)
+++ trunk/pixelle/src/com/mebigfatguy/pixelle/PixelleEval.java	2008-06-23 05:58:47 UTC (rev 64)
@@ -112,7 +112,12 @@
 	}
 	
 	private double getSelectionValue(int x, int y) {
-		return srcImage.getSelectionValue(x, y);
+		if ((x & 0x07) == 0) {
+			selectionByte = srcImage.getSelectionByte(x >> 3, y);
+		}
+		
+		int bitOffset = 1 << (x & 0x07);
+		return ((selectionByte & bitOffset) == 0) ? 0 : 1;
 	}
 	
 	protected void setSelectionValue(int x, int y, double value) {

Modified: trunk/pixelle/src/com/mebigfatguy/pixelle/PixelleImage.java
===================================================================
--- trunk/pixelle/src/com/mebigfatguy/pixelle/PixelleImage.java	2008-06-23 05:53:42 UTC (rev 63)
+++ trunk/pixelle/src/com/mebigfatguy/pixelle/PixelleImage.java	2008-06-23 05:58:47 UTC (rev 64)
@@ -72,11 +72,10 @@
 		}
 	}
 	
-	public int getSelectionValue(int x, int y) {
+	public int getSelectionByte(int xByteOffset, int y) {
 		DataBuffer buffer = selection.getRaster().getDataBuffer();
 		int byteWidth = (getWidth() + 7) >> 3;
-		int byteValue = buffer.getElem(y * byteWidth + (x >> 3));
-		return ((byteValue & (1 << (x >> 3))) != 0) ? 1 : 0;
+		return buffer.getElem(y * byteWidth + xByteOffset);
 	}
 	
 	public void setSelectionByte(int xByteOffset, int y, int byteValue) {


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