Hello. Please review the small fix for jdk 9.Only TYPE_INT_ARGB_PRE is natively supported on osx in opengl pipeline(see OGLBlitLoops.java). Other types with alpha use OGLGeneralBlit which convert an image to argb_pre on the fly, this hurts a performance.
Bug: https://bugs.openjdk.java.net/browse/JDK-8059943 Webrev can be found at: http://cr.openjdk.java.net/~serb/8059943/webrev.00 -- Best regards, Sergey.
