[OpenJDK 2D-Dev] JDK-8220154 Improve java2d rendering performance on macOS by using Metal framework

[Alexey Ushakov]

FYI, I’ve rebased our work on top of the latest state of http://hg.openjdk.java.net/jdk/jdk <http://hg.openjdk.java.net/jdk/jdk> 
(http://cr.openjdk.java.net/~avu/JDK-8220154/webrev.01 <http://cr.openjdk.java.net/~avu/JDK-8220154/webrev.01>)

Best Regards,
Alexey

> On 8 May 2019, at 16:19, Alexey Ushakov <Alexey.Ushakov at jetbrains.com> wrote:
> 
> Thanks for catching it, Ajit!
> 
> Looks like it was a problem with webrev script applied to multiple git commits. I’ve updated the webrev.
> Also, we didn’t rebase yet on the latest state of http://hg.openjdk.java.net/jdk/jdk <http://hg.openjdk.java.net/jdk/jdk> (this work is in progress).
> I’ll let you know when the rebase is ready.
> 
> Best Regards,
> Alexey
> 
>> On 7 May 2019, at 21:02, Ajit Ghaisas <ajit.ghaisas at oracle.com <mailto:ajit.ghaisas at oracle.com>> wrote:
>> 
>> Hi Alexey,
>> 
>>    I tried building this patch with latest http://hg.openjdk.java.net/jdk/jdk/ <http://hg.openjdk.java.net/jdk/jdk/>
>>  
>>    1. Some basic copy paste errors are resulting in build failures
>>    2. MTLTexturePool.m file is missing from the patch
>> 
>>    Can you please check & update?
>> 
>> Regards,
>> Ajit
>> 
>>> On 30-Apr-2019, at 2:52 PM, Alexey Ushakov <alexey.ushakov at jetbrains.com <mailto:alexey.ushakov at jetbrains.com>> wrote:
>>> 
>>> Hello,
>>> 
>>> Here  is an update on our effort to use Metal framework for java2d rendering.
>>> 
>>> We’ve added image rendering support and some support for LinearGradient. Also, the code has been refactored.
>>> 
>>> Please have a look:
>>> 
>>> http://cr.openjdk.java.net/~avu/JDK-8220154/webrev.01 <http://cr.openjdk.java.net/~avu/JDK-8220154/webrev.01>
>>> 
>>> Best Regards,
>>> Alexey
>>> 
>>> 
>>>> Hello,
>>>> 
>>>> As far as we know Apple has deprecated OpenGL on MacOS platform (https://developer.apple.com/macos/whats-new/ <https://developer.apple.com/macos/whats-new/>).
>>>> 
>>>> Unfortunately, this decision greatly affects our products that based on Java Client technologies. So, we (here at JetBrains) decided to start a project to replace OpenGL rendering on MacOS platform with a new one based on Metal. This is a huge task, so we  decided to leverage current rendering architecture that is used in OpenGL rendering pipeline on Mac.  
>>>> 
>>>> That’s why we didn’t use MTKView for representing AWT windows (that probably would be a better approach in the long term). Currently we're using CAMetalLayer within AWTView. We’ve implemented flat color shape/curve rendering so far and there is a lot of work to do. So, we’re looking forward to any collaboration.
>>>> 
>>>> In the mean time I’d like to share our current work to discuss metal pipeline architecture at the early stage of work.
>>>> 
>>>> Here is the webrev with our on going development:
>>>> 
>>>> http://cr.openjdk.java.net/~avu/JDK-8220154/webrev.00 <http://cr.openjdk.java.net/~avu/JDK-8220154/webrev.00>
>>>> 
>>>> Best Regards,
>>>> Alexey
>> 
> 

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