[OpenJDK 2D-Dev] RFR: 8260931: Implement JEP 382: New macOS Rendering Pipeline [v12]

[Kevin Rushforth]

On Wed, 10 Mar 2021 10:51:08 GMT, Ajit Ghaisas <aghaisas at openjdk.org> wrote:

>> **Description :**
>> This is the implementation of [JEP 382 : New macOS Rendering Pipeline](https://bugs.openjdk.java.net/browse/JDK-8238361)
>> It implements a Java 2D internal rendering pipeline for macOS using the Apple Metal API.
>> The entire work on this was done under [OpenJDK Project - Lanai](http://openjdk.java.net/projects/lanai/)
>> 
>> We iterated through several Early Access (EA) builds and have reached a stage where it is ready to be integrated to openjdk/jdk. The latest EA build is available at - https://jdk.java.net/lanai/
>> 
>> A new option -Dsun.java2d.metal=true | True needs to be used to use this pipeline.
>> 
>> **Testing :**
>> This implementation has been tested with the tests present at - [Test Plan for JEP 382: New macOS Rendering Pipeline](https://bugs.openjdk.java.net/browse/JDK-8251396)
>> 
>> **Note to reviewers :**
>> 1) Default rendering pipeline on macOS has not been changed by this PR. OpenGL still stays as the default rendering pipeline and Metal rendering pipeline is optional to choose.
>> 
>> 2) To apply and test this PR - 
>> To enable the metal pipeline you must specify on command line -Dsun.java2d.metal=true (No message will be printed in this case) or -Dsun.java2d.metal=True (A message indicating Metal rendering pipeline is enabled gets printed)
>> 
>> 3) Review comments (including some preliminary informal review comments) are tracked with JBS issues - https://bugs.openjdk.java.net/issues/?filter=40598
>
> Ajit Ghaisas has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 45 additional commits since the last revision:
> 
>  - Lanai PR#213 - 8263325 - avu
>  - Lanai PR#212 - 8259825 - aghaisas
>  - Lanai PR#211 - 8262882 - aghaisas
>  - Merge branch 'master' into 8260931_lanai_JEP_branch
>  - Lanai PR#210 - 8263159 - jdv
>  - Lanai PR#209 - 8262936 - jdv
>  - Lanai PR#208 - 8262928 - jdv
>  - Lanai PR#207 - 8262750 - jdv
>  - Merge branch 'master' into 8260931_lanai_JEP_branch
>  - Lanai PR#206 - 8262729 - aghaisas
>  - ... and 35 more: https://git.openjdk.java.net/jdk/compare/42b2f14b...3980ecbd

Marked as reviewed by kcr (Author).

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