Hi ,
Please review a fix for this issue:
It was found that RescaleOp on image with different alpha cannot render
the image as there is a particular flaw in RescaleOp implementation
whereby the source alpha channel is never
transferred to the destination if the rescale op is performed in java
(or is never populated, if source image has no alpha channel), resulting
in fully transparent destination image.
Fix is to make sure the unscaled source alpha is transferred to
destination alpha channel.
Bug: https://bugs.openjdk.java.net/browse/JDK-8080287
webrev: http://cr.openjdk.java.net/~psadhukhan/8080287/webrev.00/
Regards
Prasanta
