[OpenJDK 2D-Dev] [9] Review Request: 8041644 [OGL] clip is ignored during surface->sw blit

Sergey Bylokhov Sergey.Bylokhov at oracle.com
Fri May 30 08:10:35 UTC 2014

added awt-dev@

On 20.05.2014 21:31, Sergey Bylokhov wrote:
> On 5/20/14 9:17 PM, Phil Race wrote:
>> On 5/20/2014 10:03 AM, Sergey Bylokhov wrote:
>>> On 5/20/14 8:52 PM, Phil Race wrote:
>>>> So my first question here was. So what does D3D do ? We should just 
>>>> copy that code.
>>> D3D doesn't work as well.
>>>> Then I read the bug report and it says D3D has the same bug
>>>> I don't get why you'd fix it for OGL but not for D3D which seems 
>>>> like the
>>>> way more important case.
>>> OGL is important too, because it is default pipeline on osx. I plan 
>>> to fix D3D case later.
>> And D3D is the default pipeline on Windows !  I submit that there are 
>> (many) more people
>> world-wide using that than OS X.
> I agree but right now I have no tested version of the fix for d3d.
>>> Actually I am not familiar with d3d code and right now I focused on 
>>> hidpi support in SwingNode on OSX.
>>>> So when you check this in we'll just get one more failing 
>>>> regression test.
>>> Yes. It will be bound to the separate CR.
>> At a minimum the test should only run on OS X or should specify 
>> -Dsun.java2d.d3d=false
>> until Windows is resolved.
> Ok. I will add this option to the test before the push.
>> But I really think this should all be checked in as one fix.
>> -phil.
>>>> -phil.
>>>> On 5/20/2014 9:42 AM, Sergey Bylokhov wrote:
>>>>> Hello.
>>>>> Please review the fix for jdk 9, which is also targeted for jdk 8u20.
>>>>> Description:
>>>>>     Our implementation of opengl surface-> sw blit does not take 
>>>>> into account the clipped area.
>>>>> Suggested fix:
>>>>>    I intersect a clip and a coordinates of destination, and if the 
>>>>> resulted region is rectangle I use the usual blit, but if the 
>>>>> region is complex I use intermediate buffer(like 
>>>>> OGLAnyCompositeBlit.Blit() or OGLGeneralBlit.Blit()).
>>>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8041644
>>>>> Webrev can be found at: 
>>>>> http://cr.openjdk.java.net/~serb/8041644/webrev.00

Best regards, Sergey.

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