RFR: 8260931: Implement JEP 382: New macOS Rendering Pipeline [v10]

[Sergey Bylokhov]

On Tue, 9 Mar 2021 20:16:25 GMT, Alexey Ushakov <avu at openjdk.org> wrote:

>> src/java.desktop/macosx/classes/sun/java2d/metal/MTLBlitLoops.java line 499:
>> 
>>> 497:         }
>>> 498: 
>>> 499:         // We can convert argb_pre data from MTL surface in two places:
>> 
>> Does anybody check that this is true for the metal pipeline? or It is just copied from the OGL?
>
> I fixed some conversion logic within JDK-8256331.

OK, just to confirm. I wrote that text for OGL because it was the fastest way to transfer+convert the data from the video card to the memory. And as far as I understand the metal has the same limitation? It is not possible to convert it to some non-ARGB/Pre format on the fly while transferring the pixles?

>> src/java.desktop/macosx/classes/sun/java2d/metal/MTLSurfaceData.java line 146:
>> 
>>> 144:                 return MTLSurfaceRTT;
>>> 145:             default:
>>> 146:                 return MTLSurface;
>> 
>> Do we really support 3 different types of surface? I guess only two of them are different: textures used for manageable images, and surfaces used by the volatile image.
>
> It's true but I don't see any problem returning a more generic type as a default here

tbd

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PR: https://git.openjdk.java.net/jdk/pull/2403