[Fluxus] Flags of glutInitDisplayMode

[Dave Griffiths]

On Sun, 2008-01-27 at 19:42 +0100, Heinz Markgraf wrote:
> Hello,
> 
> I just installed fluxus from source
> (http://www.pawfal.org/Software/fluxus/files/fluxus-0.14rc1.tar.gz)
> 
> I get the following error  when starting it:
> 
> .../fluxus-0.14rc1> fluxus
> Welcome to fluxus.GLUT_ACCUM
> Type (help) for info.
> freeglut (fluxus):  ERROR:  Internal error <Visual with necessary
> capabilities not found> in function fgOpenWindow
> X Error of failed request:  BadWindow (invalid Window parameter)
>   Major opcode of failed request:  4 (X_DestroyWindow)
>   Resource id in failed request:  0x0
>   Serial number of failed request:  15
>   Current serial number in output stream:  15
> fluxus: xcb_xlib.c:42: xcb_xlib_lock: Assertion `!c->xlib.lock' failed.
> Aborted
> 
> 
> The reason seems to be that the flag GLUT_ACCUM is set at the call to
> glutInitDisplayMode, even if ACCUM_BUFFER is not defined (src/main.cpp):
> 
>    #ifdef ACCUM_BUFFER
>    unsigned int flags = GLUT_DOUBLE|GLUT_RGBA|GLUT_DEPTH|GLUT_STENCIL;
>    #else
>    unsigned int flags =
> GLUT_DOUBLE|GLUT_RGBA|GLUT_DEPTH|GLUT_STENCIL|GLUT_ACCUM;
>    #endif
> 
> 
> Maybe someone can fix this in the next release?

This seems to be the wrong way round - or is this what you mean? :) I've
committed a fix for this - sorry. 

fwiw I can't get the accumulation buffer to work on my setup either, so
although there is support for it in fluxus - I don't think you're
missing much.

> 
> 
> Else I'm happy to start using fluxus, it seems to be very nice. :)

Thanks!

dave