Re: [Gimp-developer] segmentation fault when trying to replace deprecated functions in lcms.c

Do you call gegl_init()?

Look at file-pat.c or goat-exercise.c for simple examples
of gegl-enabled plugins.


On Thu, 2012-09-06 at 12:59 -0400, Elle Stone wrote:
> When I try to call the recommended new functions to replace the
> deprecated functions in the lcms.c plug-in, the code segmentation
> faults.
> To illustrate the problem, I wrote a line of code to call
> 'gimp_drawable_get_buffer' and put a printf statement just above and
> below:
>   printf("lcms: lcms_drawable_transform: before call to GeglBuffer\n");
>   GeglBuffer *buffer = gimp_drawable_get_buffer (layer_id);
>   printf("lcms: lcms_drawable_transform: after call to GeglBuffer\n");
> The code "segmentation faults" when it gets to "GeglBuffer *buffer =
> gimp_drawable_get_buffer (layer_id);".
> Although I am not experienced in interpreting backtraces, and could
> easily be completely wrong, it looks like the problem is that babl
> doesn't accomodate the file format "RGB u16":
> #6  0x00007f216af03c2f in babl_format (name=0xb50610 "RGB u16") at
> babl-format.c:667
> line 667 is the end of babl-format.c and "RGB u16" does not occur
> anywhere in babl-format.c.
> I am not sure how to fix this problem. The full backtrace and the
> relevant lcms.c code (high bit depth version) can be found here:
> Elle Stone

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