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

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

Hi Ivan,

On Tue, Jul 12, 2005 at 05:54:19PM -0400, Ivan Z. Ganza wrote:
> Not a problem.  I did not have time to properly test them, however, the
> code was actually still in the native layer from where I first coded
> that part , and I know it was working at that point.

Yup, it's back as it was...

> The reason for long instead of int is because that is how swig maps it.
>=20
>     void SWIG_GetPixelData32(SDL_Surface *surface, Uint32 pixelData[])

Argh. that's a huge bottleneck for me. I treat ints as uint32 as it is
(for AARRGGBB) and other libraries I use (VNCj notably) also use this
interpretation for int.

> For the above SWIG mapg the Uint32 to a long[].  I suppose we could add
> our own (additonal) method with takes an int[] and casts it to long[]
> calling the appropriate method (for conviencence).  Not sure if that
> would cause any problems due to the cast.

No, it's not possible to cast int[] to long[]. I end up having to do the
following:

  long[] longs =3D new long[source.length];
  for (int i =3D 0; i < source.length; i++) {
    longs[i] =3D source[i];
  }
  SDLUtil.setPixelData32(screen, longs);

You can imagine how expensive this can get :( I don't think that pushing
this to C is the answer. Perhaps SWIG needs fixing?

Steph

--=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Stephane Meslin-Weber         Email: st...@ta...
Senior Software Engineer      Web: http://odonata.tangency.co.uk
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D