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6918065: Crash in Java2D blit loop (IntArgbToIntArgbPreSrcOverMaskBlit) in 64bit mode

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Reviewed-by: igor, bae
This commit is contained in:
Yumin Qi 2010-03-08 11:35:30 -08:00
parent d500623121
commit 9e32d0d9d1
2 changed files with 28 additions and 5 deletions
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11
jdk/src/share/classes/java/awt/AlphaComposite.java
View file

@ -614,14 +614,15 @@ public final class AlphaComposite implements Composite {
} }
private AlphaComposite(int rule, float alpha) { private AlphaComposite(int rule, float alpha) {
if (alpha < 0.0f || alpha > 1.0f) {
throw new IllegalArgumentException("alpha value out of range");
}
if (rule < MIN_RULE || rule > MAX_RULE) { if (rule < MIN_RULE || rule > MAX_RULE) {
throw new IllegalArgumentException("unknown composite rule"); throw new IllegalArgumentException("unknown composite rule");
} }
this.rule = rule; if (alpha >= 0.0f && alpha <= 1.0f) {
this.extraAlpha = alpha; this.rule = rule;
this.extraAlpha = alpha;
} else {
throw new IllegalArgumentException("alpha value out of range");
}
} }
/** /**

22
jdk/test/java/awt/AlphaComposite/TestAlphaCompositeForNaN.java Normal file
View file

@ -0,0 +1,22 @@
/*
* @test
* @bug 6918065
* @summary Test for passing NaN as alpha
* should throw IllegalArgumentException
*/
import java.awt.*;
public class TestAlphaCompositeForNaN {
public static void main(String[] args) {
try {
AlphaComposite a = AlphaComposite.getInstance(AlphaComposite.DST, Float.NaN);
System.out.println("Failed");
throw new RuntimeException(a + " failed to throw IllegalArgumentException for alpha = " + Float.NaN);
}
catch (IllegalArgumentException ie) {
System.out.println("Passed");
System.out.println("Caught " + ie);
}
}
}