JDK-8089654 : J2D pipeline implements viewports and reflection sub-images poorly
  • Type: Bug
  • Component: javafx
  • Sub-Component: graphics
  • Affected Version: fx2.0
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2012-01-28
  • Updated: 2018-09-05
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tbdUnresolved
Related Reports
Relates :  
JDK-8087886 - J2D pipeline does not implement proper handling of the subimage "isolate mask" control
Description
Currently the J2D pipeline implements the subimage drawTexture call by using the Java drawImage() variant with integer coordinates for the subimage.  This technique will match the intended behavior if the viewport is specified as integers, but will produce the wrong results otherwise.
Comments
The drawImage call also always performs sub-image isolation. Prism used to allow a caller to request sub-image isolation and so that was not a problem in those cases, but this support was removed from the hardware Prism pipelines while fixing RT-24566 because not only was there no public API for requesting that support, but for the few internal cases that relied on it, it was very expensive to emulate and it is far easier for the caller to either specify different sub-images. As a result prism is now "isolation free" for all subimage requests and the J2D calls should not have that behavior for any sub-image. See RT-19271 for more details.
02-11-2012
Out of time for 2.2, so target to Lombard.
10-07-2012