Re: [sdljava-users] Problem with sdl_gfx -> aaPolygonRGBA

[Ivan Z. G. <iva...@ya...>]

I've checked in code which effectively changes all short[] arguments to 
ShortBuffers(s) instead.

There is a problem however and I'm not sure what it is.  Running 
test-aaploygonRGBA.bsh results in the following out -- although I am 
passing sane values when the ShortBuffer is read on the C side the 
values are all messed up.  This is strange because I'm using the same 
idea with the OpenGL layer and all seems to work fine.  I'm not access 
the buffers myself on the OpenGL though, OpenGL is, yet it works fine in 
that case.  If any has a clue please let me know....The code looks like 
this:  void* vx and void* vy are pointers obtained via 
getDirectByteBufferAddress()...

int SWIG_aapolygonRGBA(SDL_Surface *dst, void* vx, void* vy, int n, 
Uint8 r, Uint8 g, Uint8 b, Uint8 a) {

    int i;

    for (i = 0; i < n; i++) {
      Sint16* svx = (Sint16*)vx;
      Sint16* svy = (Sint16*)vy;
      printf("n=%i, vx=%i, vy=%i\n", i, svx[i], svy[i]);
    }
    return aapolygonRGBA(dst, (Sint16*)vx, (Sint16*)vy, n, r, g, b, a);
  }


n=0, vx=28928, vy=29288
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=28928
n=0, vx=31440, vy=31800
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=31440
n=0, vx=-31552, vy=-31192
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=-31552
n=0, vx=-29040, vy=-28680
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=-29040
n=0, vx=-26528, vy=-26168
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=-26528
n=0, vx=-24000, vy=-23640
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=-24000
n=0, vx=-21488, vy=-21128
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=-21488
n=0, vx=-18976, vy=-18616
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=-18976
n=0, vx=-16464, vy=-16104
n=1, vx=17819, vy=17819
n=2, vx=-28704, vy=-16464


gol...@un... wrote:

>Thanks for responding so quick :)
>
>If i find some free time today i'll try to compile from cvs (which i tried 
>before but never succeded)
>
>Goliat
>
>PS: if this is a html mail ... sry ;) (trying to get kmail working)
>
>
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