Re: drawImage() really slow on Leopard
Re: drawImage() really slow on Leopard
- Subject: Re: drawImage() really slow on Leopard
- From: Miguel Arroz <email@hidden>
- Date: Wed, 27 Feb 2008 01:44:35 +0000
Hi!
But is it normal that it takes 1000x times more? This worries me
because the server where I'll deploy will run FreeBSD, so it does NOT
have Quartz below to do this kind of work... I know Quartz is amazing,
but it's a little hard to accept that Sun2D is this bad. There must be
a bug of some sort here... right?
We'll do some FreeBSD performance tests on this ASAP.
Yours
Miguel Arroz
On 2008/02/27, at 01:11, Galen Rhodes wrote:
Yes, they switched from the Quartz rendering pipeline to the Sun
rendering pipeline and the performance sucks. I've already posted a
bug report to Apple about it.
In the meantime switch to the Quartz rendereing pipeline with the
following command line switch:
-Dapple.awt.graphics.UseQuartz=true
--
Galen Rhodes
email@hidden
http://www.photoyoda.com
http://www.myspace.com/woexpert
On Feb 26, 2008, at 7:37 PM, Miguel Arroz wrote:
Hi!
I have the following code to downscale images:
// Do the scaling
BufferedImage reducedImage = new BufferedImage(newX, newY,
BufferedImage.TYPE_INT_RGB);
Graphics2D g = reducedImage.createGraphics();
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g.setRenderingHint(RenderingHints.KEY_RENDERING,
RenderingHints.VALUE_RENDER_SPEED);
NSLog.out.appendln("Drawing image with original dimensions " +
originalImage.getWidth() + ", " + originalImage.getHeight()
+ " with size " + newX + ", " + newY ); */
g.drawImage(originalImage, 0, 0, newX, newY, 0, 0,
originalImage.getWidth(), originalImage.getHeight(), null);
g.dispose();
The log is: INFO 00:27:16 (NSLog :38) -Drawing
image with original dimensions 3072, 2304 with size 267, 200
This took about a second to process in my Powerbook on Tiger. I
migrated to Leopard, and this is taking... well... forever. I
waited several minutes and it's still sucking up my CPU. Shark says
it's taking a lot of time in color conversion stuff:
<pastedGraphic.png>
I have no ideia why. It's the same image and the same code. Only
the OS has changed. Another Leopard bug?
Any ideias?
Yours
Miguel Arroz
Miguel Arroz
http://www.terminalapp.net
http://www.ipragma.com
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Miguel Arroz
http://www.terminalapp.net
http://www.ipragma.com
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