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Re: [pygame] "import pygame" crashes with svn build

Hey Lenard,

sorry for the long delays but I'm quite busy these days plus the good weather... not many PC hours left.

Lenard Lindstrom wrote:

Hi Lorenz,
Could you try dropping in SVN rev 1912 of transform.c instead. This predates the Python 3 updates. This is kind of reaching, but it will narrow down the search. 

I tried this out and poked some more at it and it doesn't seem to be py3k related but rather MMX/SSE.
The transform.c rev 1657 works and 1658 breaks.
Also if I comment out "#define SCALE_MMX_SUPPORT" in any version it works.

I don't get this. I keep thinking that something must be wrong with _my_ system otherwise someone else
must have encountered this as well.
The only thing I could possibly think of is that I installed the sdl-gfx package without the "mmx" USE-flag
(I'm running Gentoo) because it is not available on amd64 architecture.

By the way. I also tried commenting out all the asm stuff in scale_mmx64.c but it would still crash.
So maybe it is something that is going on in transform.c but related to MMX/SSE

If you have any other ideas let me know.

yours
//Lorenz




Thanks,

Lenard

Lorenz Quack wrote:


Hi again,



you figured this out yet?



not 100% but at least now I get it to compile by following your advice:

Easiest way to work around it...
  Comment out import transform lines in the file:
      site-packages/pygame/__init__.py


[...]


Perhaps try commenting out the sse/mmx parts?



that seems to be the problem. If I comment out

#       include "scale_mmx64.c"
in "scale_mmx.c" it compiles. if I import pygame the interpreter naturally complains about undefined symbols but as long as I don't use the transform module it seems to work this way as well. of course this is not a solution.
For debugging purposes I tried to remove all SSE/MMX code and simply implement 
empty dummy functions like this:
void filter_shrink_X_MMX(Uint8 *srcpix, Uint8 *dstpix, int height, int srcpitch, 
                         int dstpitch, int srcwidth, int dstwidth) {}
that also crashed. I find this very confusing and frustrating. So I settle with 
the work around for now.
thanks again for the help and if I can help with some debug information or if you 
have any ideas let me know.

yours
//Lorenz