[OpenJDK 2D-Dev]  Review Request JDK - 8164811 : [hidpi]Tests fail with OpenGL Rendering
Sergey.Bylokhov at oracle.com
Fri Nov 3 00:03:57 UTC 2017
The BufferedImage class is a raster in the memory which should be
unrelated to any grpahics config on the system. So this class should not
be changed, but instead you should create a correct BI-as a back buffer
which takes into account the size of the window and the scale of the GC.
On 31/10/2017 04:59, Pankaj Bansal wrote:
> Hi All,
> Please review the fix for JDK 10.
> The tests given in the bug were failing when run with OpenGL and GDI.
> This bug is related to https://bugs.openjdk.java.net/browse/JDK-8189257
> which states that that HIDPI does not work with swing components when
> Translucent window is used. Because of which all the tests in the bug
> were failing.
> The TranslucentWindowPainter class was creating BufferedImage for OpenGL
> (when /forceOpt/ is false) and GDI pipeline, but it is not considering
> the device HiDPI scale. There is no way to create a scaled BufferedImage
> because of which the scale value in BufImgSurfaceData is always 1. Made
> changes to store graphics config in Buffered image, so that the
> BufImgSurfaceManager can create BufImgSurfaceData with scale set properly.
> This fix also fixes https://bugs.openjdk.java.net/browse/JDK-8189257
> Pankaj Bansal
Best regards, Sergey.
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