Large Image Export

[Kevin Rushforth]

 > could be moved into 8u20

I meant 8u40.

-- Kevin


Kevin Rushforth wrote:
> This is RT-22073 <https://javafx-jira.kenai.com/browse/RT-22073> which 
> is currently targeted for 9, but could be moved into 8u20 if there was 
> enough demand to fix it. The (rather ugly) app-level workaround is to 
> break the operation up into 4Kx4K tiles, and render the tiles in a 
> loop specifying the appropriate viewport and translation via 
> ShapshotParams.
>
> -- Kevin
>
>
>
> Danno Ferrin wrote:
>> While working on a fun project I discovered that the Image Export limits
>> the size of the export textures, mostly depending on your graphics 
>> stack.
>>  Here's one example:
>>
>> java.lang.RuntimeException: Requested texture dimensions (20581x245)
>> require dimensions (0x245) that exceed maximum texture size (16384)
>> at com.sun.prism.es2.ES2RTTexture.create(ES2RTTexture.java:220)
>> at
>> com.sun.prism.es2.ES2ResourceFactory.createRTTexture(ES2ResourceFactory.java:106) 
>>
>> at
>> com.sun.prism.es2.ES2ResourceFactory.createRTTexture(ES2ResourceFactory.java:102) 
>>
>> at
>> com.sun.javafx.tk.quantum.QuantumToolkit$QuantumImage.getRT(QuantumToolkit.java:1210) 
>>
>> at 
>> com.sun.javafx.tk.quantum.QuantumToolkit$18.run(QuantumToolkit.java:1345) 
>>
>> at 
>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
>> at com.sun.javafx.tk.RenderJob.run(RenderJob.java:58)
>> at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
>>
>> at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
>>
>> at
>> com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:129) 
>>
>>
>> This is on a mid-2012 Mac Book Air, and the MacGLConext looks to limit
>> dimensions to 2^14.
>>
>> Is there anything I can do other than making sure my nodes don't get 
>> bigger
>> than 16K on one side?  I've tried setting a transform on the snapshot 
>> and
>> zooming it below 16k, but it still gets the same exception with he same
>> dimensions.
>>
>> --Danno
>>