default to use accelerated opengl?

Hello !

I just try it but running « java -Dsun.java2d.opengl=True -Xmx512M -jar /usr/share/josm/josm.jar » but I don't found any changes !
Is it faster on your configuration ?

PS: the good URL is http://wiki.openstreetmap.org/index.php/JOSM#Start_JOSM

Using acceleration should be faster. I can't actually compare (possibly due to bug #250931 )

When I start JOSM with "java -Dsun.java2d.opengl=True -jar ~/osm/josm-latest.jar"
I get the error: "Could not enable OpenGL pipeline for default config on screen 0".

I can confirm that the video in JOSM does get very slow at times - with a whole city downloaded it can take 5 seconds to register each mouse click which is unusable.

Especial if you have some problem to run with it I wont activate it by default but I can add something like this:

...

JAVA_ARGS=""
if [ -f /etc/default/josm ] ; then
 . /etc/default/josm
fi

...

exec $JAVACMD $JAVA_ARGS -jar /usr/share/josm/josm.jar "$@"

Than it's possible to add it and it don't rollback on update.

CU
Stéph

It doesn't cause a problem for me - it just doesn't enable acceleration (possibly because I use a laptop video chipset with dual screen). But for the average user it should work fine. AFAIK -Dsun.java2d.opengl=true is the recommended setting upstream. I can't see any reason why you would default to not using OpenGL acceleration? My problem is not with OpenGL acceleration, it is with the opposite - software rendering is very slow!

btw, I have also had problems with the JRE crashing editing large maps, I now use -Xmx1024M which has fixed the problem.

It because I see somewhere that I can do some problem, but I don't remember where !

For the speed I test it with the booth option on an nvidia chipset and I don't see a difference, but it's possible that there is a problem with my config.

Finally I think that it should have en easy way to enable or disable it. It for that I purpose to add a /etc/default/josm file.

As soon as the next tested release is out I will add this.

CU
Stéphane

The josm package in Debian has been updated to fix this issue, see:

 https://anonscm.debian.org/cgit/pkg-grass/josm.git/commit/?id=d9f76e0ec7ef6899c7b545555166166eb62a20c1

The -Dsun.java2d.opengl=True and -Xmx1024m options are now included in /etc/default/josm, but disabled by default.

The changes have also been forwarded upstream for use in the JOSM PPA:

 https://josm.openstreetmap.de/ticket/13002