Request for review: 7124552 [macosx] NullPointerException in getBufferStrategy()

[Sergey Bylokhov]

15.02.2012 16:28, Alexander Potochkin пишет:
> Hello Sergey
>> 15.02.2012 15:39, Alexander Potochkin wrote:
>>> Hello Sergey
>>>
>>> LWCanvasPeer.flip()
>>>
>>> I don't think you can work withVolatileImage as with an ordinary Image,
>>> you take a buffer and then draw it to the graphics
>>> when the buffer may be already expired.
>>>
>>> look at RepaintManager.PaintManager.paint()
>>>
>>> it tries to repaint the image if its content is lost,
>>> after the fixed amount of attempts it falls back to the BufferedImage
>> Buffer strategy has its own contentLost()(see 
>> FlipBufferStrategy.contentLost()) method which should be used by the 
>> user.
>
> Could you give me a test case which uses this strategy?
test.sun.java2d.DirectX.RenderingToCachedGraphicsTest.RenderingToCachedGraphicsTest.java
>
> Thanks
> alexp
>
>>>
>>> Here is a good blog about using VolatileImage
>>> http://weblogs.java.net/blog/chet/archive/2003/09/volatileimage_n.html
>>>
>>> LWWindowPeer - it would be better to move the comment to the 
>>> method's javadoc
>>>
>>> Thanks
>>> alexp
>>>
>>>> Hi Everyone,
>>>> This is the first implementation for canvas backbuffer. npe was 
>>>> eliminated.
>>>>
>>>> Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7124552
>>>> Webrev can be found at: 
>>>> http://cr.openjdk.java.net/~serb/7124552/webrev.00/
>>>>
>>>
>>>
>>>
>>
>>
>


-- 
Best regards, Sergey.