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

[Jayathirth Rao]

Hi Alexey,

We are trying to test basic calls of Graphics2D as mentioned in https://docs.oracle.com/javase/tutorial/2d/TOC.html <https://docs.oracle.com/javase/tutorial/2d/TOC.html> 

I see that Graphics2D.drawImage() with BufferedImage as input works. Also I tried other operations like fillRect() and fillOval() and they work. I am testing with simple JFrame and adding draw calls inside overriden paint() method of a panel.

So with current JB changes what parts of primitive and image drawing are expected to work?
Please provide your inputs.

Thanks,
Jay

> On 16-May-2019, at 12:47 PM, Ajit Ghaisas <ajit.ghaisas at oracle.com> wrote:
> 
> Thanks Alexey.
> 
> I can see that now you have added the MTLTexturePool.m file. It only partially solves the build failures.
> Jay & myself tried building it separately and we do still see the build failures.
> 
> Some statements need bracketing & some copy-paste errors need correction.
> We could fix these errors and have got a build. We will continue our test experiments with it.
> 
> Meanwhile, you may want to update the patch to fix the build errors. 
> 
> Regards,
> Ajit
> 
> 
>> On 08-May-2019, at 8:56 PM, Alexey Ushakov <alexey.ushakov at jetbrains.com <mailto:alexey.ushakov at jetbrains.com>> wrote:
>> 
>> 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 <mailto: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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