[OpenJDK 2D-Dev] [8] request for review: 7124347: [macosx] "java.lang.InternalError: not implemented yet" on call Graphics2D.drawRend

Jim Graham james.graham at oracle.com
Thu Nov 29 00:07:04 UTC 2012

Is there a reason for allowing a null comp in the isSupported method?


On 11/26/2012 4:38 AM, Andrew Brygin wrote:
> Hello,
>   could you please review a fix for 7124347?
>   This fix does not implement getRater() in ogl surfaces.
>   Instead, it provides a blit for custom composite, which
>   prepares a snapshot of the destination surface (which
>   is one of ogl surfaces) and delegates the work to the
>   general blit, which now extracts raster from the snapshot.
>   A result of general blit's work is transferred to the
>   original destination.
>   Changes in OGLSurfaceDataProcy are required in order to prevent
>   getting an accelerated copy of original source image as an
>   operand of the blit. Now we first check for composite type,
>   and only then (if composite is not specified, or is a kind
>   of alpha composite) we take into account other conditions.
>   So this fix does not change anything for the case of alpha composites
>   but affects only XOR and custom composites case.
>   Note that the fix solves the problem only for the case of blits
>   (i.e. drawImage()). Other operations may result into the same
>   problem if custom composite is used. However, in case of XOR,
>   this change solves the problem completely, because other rendering
>   operations in the ogl pipeline are ready for XOR composite.
>   Supplied regression test verifies that the fix makes the problem gone.
>   I have verified both windows and macosx platforms.
>   Please take a look and share your comments.
> Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7124347
> Webrev: http://cr.openjdk.java.net/~bae/7124347/8/webrev.00/
> Thanks,
> Andrew

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