Re: [sdljava-users] Anyone using get/setPixelDataXX()?

[S. Meslin-W. <st...@ta...>]

Hi Ivan,

Thought so - for some reason the native dir hadn't been updated on my
tree so I thought you'd forgotten to push your changes... woops! :)

I recompiled the dll (and the java code of course) and now I get an SDL
window for a fraction of a second before the JVM crashes; and without
any error messages or log files.

I'm a bit stumped as JNI is definately beyond my skills - is there
anything I can do on my end to speed up the debugging?

Thanks,

Steph

On Wed, Jul 20, 2005 at 05:52:07PM -0400, Ivan Z. Ganza wrote:
> Hi Steph,
>=20
> Yes you need to rebuild the sdljava.dll because the native layer code
> changed.  As well as recompilation of SDLSurface.java source file.
>=20
> The files that changed were:
>=20
> -- native layer
>     SDLVideo.i
>     SDLVideo_wrap.c
>=20
> - java layer
>     SDLSurface.java
>=20
> So I regenerated the wrapper file but new shared libraries/dlls need to
> be generated.
>=20
> -Ivan/
>=20
> S. Meslin-Weber wrote:
>=20
> >Hi Ivan,
> >
> >Thanks for looking into this :)
> >
> >I've checked out head from cvs but with my existing .dll the jvm dies;
> >have I missed a step? Wouldn't this kind of change mean regenerating
> >some of the SWIG java and native files?
> >
> >Cheers,
> >
> >Steph
> >
> >
> >On Tue, Jul 19, 2005 at 06:36:59PM -0400, Ivan Z. Ganza wrote:
> > =20
> >
> >>Greetings,
> >>
> >>I've changed the get/setPixelData32 methods to use int[] instead of
> >>long[].  Please let me know if this is working properly.  I didn't have
> >>a chance to test it...
> >>
> >>If we find this to be good I'll adjust the other two methods in the same
> >>way.  Also I saw one thing that could be optimized which I will also do.
> >>
> >>So we should end up with:
> >>
> >>    get/setPixelData8   --> byte[]
> >>    get/setPixelData16 --> short[]
> >>    get/setPixelData32 --> int[]
> >>
> >>Nothing else anywhere will be affected by this.
> >>
> >>Let me know any comments...
> >>
> >>-Ivan/
> >>
> >>S. Meslin-Weber wrote:
> >>
> >>   =20
> >>
> >>>Hi everyone,
> >>>
> >>>I'm cleaning up some code in Odonata and in the sdljava provider I've
> >>>found that I use get/setPixelData32(long[]). Would it be possible to
> >>>rationalise the types used for these methods? Does anyone still use
> >>>them?
> >>>
> >>>long[]  64 bit colour data
> >>>int[]   32 ...
> >>>short[] 16 ...
> >>>byte[]   8 ...
> >>>
> >>>Essentially it'd mean changing the signatures for the get/set methods =
to
> >>>match the bit sizes they're operating with.
> >>>
> >>>I've seen the gradual move to using ByteBuffer and Buffers in general.=
=2E.
> >>>Odonata intends to work with JVM versions 1.1+ so those classes wouldn=
't
> >>>necessarily be available on those targets :)
> >>>
> >>>Cheers,
> >>>
> >>>Steph
> >>>
> >>>=20
> >>>
> >>>     =20
> >>>
> >>
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> >>
> >
> > =20
> >
>=20
>=20
>=20
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Stephane Meslin-Weber         Email: st...@ta...
Senior Software Engineer      Web: http://odonata.tangency.co.uk
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