On 5 January 2017 at 02:08, Vincent <debian-siril@xxxxxxxxxxxxxxxxxxxx> wrote: > The code is here: > https://free-astro.org/svn/siril/trunk/src/main_gegl_test.c > you may also checkout trunk/deps/gegl-gtk. Compilation > instructions are given at the top of the file, dependencies are GTK3, > GEGL, gegl-gtk and cfitsio. > A sample file is available here: > https://free-astro.org/download/scott.fit > > Stack trace for SIGSEV (sorry I don't have all symbols it has too > many dependencies to rebuild shortly): > #0 0x00007ffff43a6e1e in __memmove_sse2_unaligned_erms () at > /usr/lib/libc.so.6 > #1 0x00007ffff617b1a1 in gegl_buffer_set () at > /usr/lib/libgegl-0.3.so.0 > #2 0x000000000040354a in main (argc=2, argv=0x7fffffffe9b8) at > main_gegl_test.c:84 > > Any ideas? >From the stacktrace, it looks like is crashes in gegl_buffer_set(buf, &rect, 0, format, &fit.pdata[0], GEGL_AUTO_ROWSTRIDE); So probably there is some mismatch between the data in &fit.pdata[0] and the expectations set by the passed parameters to gegl_buffer_set(). Don't see anything obvious in the code on a quick glance, but I would sanity-check how many bytes are allocated for fit.data > > Is there actually a copy of the buffer into GEGL's memory in this > function? I would have hoped we could avoid that, to have better > performances. Yes, GeglBuffer is a tiled datastructure, so the data is spread out into tiles. How many times per second will you be updating the image? -- Jon Nordby - www.jonnor.com _______________________________________________ gegl-developer-list mailing list List address: gegl-developer-list@xxxxxxxxx List membership: https://mail.gnome.org/mailman/listinfo/gegl-developer-list
