Hi Brian,

it's pretty impossible to tell what's going on from your
description.  What release of Java are you using?  What
platform are you running on?  if you're on Windows, what
graphics card are you using?

All of these items (and more) contribute toward our
ability to accelerate images in general and Swing's
back buffer in particular.

Thanks,
Chet.


Brian Peterson wrote:

I have an application that is spending 25% of its time in
 sun.java2d.pipe.DrawImage.blitSurfaceData
19% of which comes from paintImmediately calls from the RepaintManager (call
trace at end of message).

Are the offscreen buffer images for my windows or subcomponent JPanels not
getting accelerated?  Or is this normal behavior?

Brian

javax.swing.RepaintManager.paintDirtyRegions()
javax.swing.JComponent.paintImmediately()
javax.swing.JComponent._paintImmediately()
javax.swing.JComponent.paintDoubleBuffered()
javax.swing.JComponent.paintWithOffscreenBuffer()
sun.java2d.SunGraphics2D.drawImage()
sun.java2d.SunGraphics2D.drawImage()
sun.java2d.SunGraphics2D.copyImage()
sun.java2d.pipe.ValidatePipe.copyImage()
sun.java2d.pipe.DrawImage.copyImage()
sun.java2d.pipe.DrawImage.copyImage()
sun.java2d.pipe.DrawImage.RenderSurfaceData()
sun.java2d.pipe.DrawImage.blitSurfaceData()

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