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

[Alexey Ushakov]

On Sun, 7 Mar 2021 22:24:54 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> 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 36 additional commits since the last revision:
>> 
>>  - Lanai PR#206 - 8262729 - aghaisas
>>  - Lanai PR#205 - 8262496 - avu
>>  - Lanai PR#203 - 8262313 - jdv
>>  - Lanai PR#202 - 8262293 - avu
>>  - Lanai PR#201 - 8261891 - avu
>>  - Lanai PR#200 - 8262115 - aghaisas
>>  - Merge branch 'master' into 8260931_lanai_JEP_branch
>>  - Lanai PR#199 - 8262091 - aghaisas
>>  - Lanai PR#198 - 8261646 - avu
>>  - Lanai PR#197 - 8261960 - jdv
>>  - ... and 26 more: https://git.openjdk.java.net/jdk/compare/ffb3d48c...5cb1fd91
>
> src/java.desktop/macosx/classes/sun/java2d/metal/MTLContext.java line 68:
> 
>> 66:      * when disposing a texture-based surface).
>> 67:      */
>> 68:     public static void setScratchSurface(long pConfigInfo) {
> 
> How the scratch surface is used in the metal pipeline? Why it is not enough to set the "context current"?

In fact, we don't have any scratch surfaces. SET_SCRATCH_SURFACE effectively sets the new context. For better readability, we should add the new op SET_CONTEXT in BufferedOpCodes

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