Re: [gtk-list] help with colors & randomness

[Havoc Pennington <rhp zirx pair com>]

On Fri, 18 Jun 1999, Travis Loyd wrote:
> I keep getting this error:
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x4015bed5 in gdk_pixmap_create_from_data () from /usr/lib/libgdk-1.2.so.0
> 
> It happends at different times on different machines. I don't know why. I
> can run many copies of this program on my machine it would seem like there
> should be plenty of colors for everything.
>

SEGV is a segmentation violation, nothing to do with number of colors. It
means there was a bad memory access.
 
> I use these 3 lines concerning colormaps at different points thoughout
> the game:
> 
>  colormap = gtk_widget_get_colormap (mother->main_window);
>  player_xpm[ctr] = gdk_pixmap_colormap_create_from_xpm_d(
>                 NULL, colormap, &player_mask[ctr], NULL,
>                 player_data[ctr]);
>  gdk_colormap_unref(colormap);
> 

I don't think you are supposed to unref this colormap, so it gets
destroyed prematurely, then someone tries to access it and boom, it's a
bad memory access -> SEGV.

HTH,
Havoc