DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149 Chris Bowditch bowditch_ch...@hotmail.com changed: What|Removed |Added Status|RESOLVED|REOPENED Resolution|INVALID | --- Comment #4 from Chris Bowditch bowditch_ch...@hotmail.com 2012-04-10 16:00:02 UTC --- Hi Glenn, Sorry but I don't agree with closing this bug just yet. Whilst its true that Java changed the implementation and that's what causes the slowdown, FOP still elects to use that particular JDK library. Luis has been working on a raw PNG Image Loader that addresses a couple of performance issues. The idea of the new loader is that it doesn't use the JDK library. I would like to leave it open and when Luis returns from vacation in a couple of days he can test out his new raw PNG handler to see if it alleviates this particular performance issue. Thanks, Chris -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149 --- Comment #5 from Glenn Adams gad...@apache.org 2012-04-10 17:25:29 UTC --- (In reply to comment #4) Sorry but I don't agree with closing this bug just yet. Whilst its true that Java changed the implementation and that's what causes the slowdown, FOP still elects to use that particular JDK library. Luis has been working on a raw PNG Image Loader that addresses a couple of performance issues. The idea of the new loader is that it doesn't use the JDK library. I would like to leave it open and when Luis returns from vacation in a couple of days he can test out his new raw PNG handler to see if it alleviates this particular performance issue. ok, sounds good -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149 Glenn Adams gad...@apache.org changed: What|Removed |Added Component|images |Image codecs Version|1.0 |1.4 Product|Fop |XMLGraphicsCommons Target Milestone|--- |-- -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149 Glenn Adams gad...@apache.org changed: What|Removed |Added Blocks||51465 -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149 Glenn Adams gad...@apache.org changed: What|Removed |Added Status|REOPENED|NEW -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149 Glenn Adams gad...@apache.org changed: What|Removed |Added Blocks||53055 -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149 Glenn Adams gl...@skynav.com changed: What|Removed |Added Status|NEW |RESOLVED Resolution||INVALID --- Comment #3 from Glenn Adams gl...@skynav.com 2012-04-04 22:47:44 UTC --- not an FOP bug; upgrade your Java platform to include fix -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149
--- Comment #1 from patc...@portaildulibre.fr 2011-06-15 13:31:15 UTC ---
Hello,
I have a similar bug (fop 1.0), but it doesn't appear in the version 1.3 of
xmlgraphics (fop 0.95).
The problem comes from color model associated with the image.
* if is_sRGB_stdStale = true then getRBG method is very fast
* if is_sRGB_stdStale = false then getRBG is slow because the treatment is
delegated to ICC_ColorSpace.toRGB
The color model is correct, but it is modified by the class
org.apache.xmlgraphics.image.loader.impl.imageio.ImageLoaderImageIO
by the following code (v 1.4):
if (providerIgnoresICC cm instanceof ComponentColorModel) {
// Apply ICC Profile to Image by creating a new image with a
new
// color model.
ICC_Profile iccProf = tryToExctractICCProfile(iiometa);
if (iccProf != null) {
ColorModel cm2 = new ComponentColorModel(
new ICC_ColorSpace(iccProf), cm.hasAlpha(), cm
.isAlphaPremultiplied(), cm
.getTransparency(), cm.getTransferType());
WritableRaster wr = Raster.createWritableRaster(imageData
.getSampleModel(), null);
imageData.copyData(wr);
BufferedImage bi = new BufferedImage(cm2, wr, cm2
.isAlphaPremultiplied(), null);
imageData = bi;
cm = cm2;
I removed this code and it works fine now, but it's dirty.
Until a fix, best regards.
--
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DO NOT REPLY [Bug 51149] 20x slowdown in PNG processing when switching from JDK 1.6.0_17 to 1.6.0_18
https://issues.apache.org/bugzilla/show_bug.cgi?id=51149 Ognjen Blagojevic ognjen.d.blagoje...@gmail.com changed: What|Removed |Added OS/Version|Windows XP |All -- Configure bugmail: https://issues.apache.org/bugzilla/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug.
