Øyvind Kolås wrote:
GEGL has started working locally lately, and the time has come that
others can join use or more easily help develop GEGL. I have put a
tarball containing my GEGL development sandbox with md5 based checksums
on PNGSs to detect regressions in tests.
The sandbox contains test cases, small example programs and a set of
base ops (png/jpg load, png save, porter duff compositing, math ops,
scaling, a box blur and some more.
To use the sandbox you will need recent(?) glib, libpng, libjpg and
SDL (for a test case that displays an animation), as well as CVS
checkouts of the gegl and babl modules from GNOME CVS.
Got all of those, (including the gegl-demo.tar I downloaded this
morning) and I was able to compile them, as well as run the "make bin"
in gegl-demo. I think compilation went fine (didn't notice any errors
come by).
The problems start when I run "make png". This stops with an error
because the "@rm" command has too few arguments (no *.png there at all).
Do you need a "-" in front of this command to have "make" continue on
errors?
If I understand this command correctly, you are trying to delete all the
zero-size PNG files that are not *_ref.png? On my system (SuSe 9.0
Linux), this would have to be "-f 5" to the "cut" command; with the "-f
4" it results in a list of all values "0". I don't know if this is
system-specific behavior of the "cut" command?
Anyway, I can comment out this whole command. With that, I do get
results. This is the output I get:
#@rm `ls *.png -s1 | grep " *0 .*" | cut -f 5 -d ' ' | grep -v "_ref.png"`
make[1]: Entering directory `/data/src/gegl/gegl-demo'
./add-test > add-test.png
make[1]: [add-test.png] Error 139 (ignored)
./anim > anim.png
** (process:22391): WARNING **: gegl_node_set_valist:OpNop has no
property named: 'x'
make[1]: [anim.png] Error 139 (ignored)
./brightness-and-contrast-with-math-ops >
brightness-and-contrast-with-math-ops.png
make[1]: [brightness-and-contrast-with-math-ops.png] Error 139 (ignored)
./brightness-and-contrast > brightness-and-contrast.png
make[1]: [brightness-and-contrast.png] Error 139 (ignored)
./buffer-test-0 > buffer-test-0.png
make[1]: [buffer-test-0.png] Error 139 (ignored)
./buffer-test-1 > buffer-test-1.png
make[1]: [buffer-test-1.png] Error 139 (ignored)
./introspect > introspect.png
** (process:22402): WARNING **: gegl_node_set_valist:OpNop has no
property named: 'x'
./multi-gegl > multi-gegl.png
make[1]: [multi-gegl.png] Error 139 (ignored)
./scaling > scaling.png
make[1]: [scaling.png] Error 139 (ignored)
make[1]: Leaving directory `/data/src/gegl/gegl-demo'
It seems the "Error 139" actually is a Segmentation fault. However, in
spite of that, the only two for which I get a zero-byte output file are
anim.png and multi-gegl.png. The others:
503808 add-test.png
389120 brightness-and-contrast-with-math-ops.png
278528 brightness-and-contrast.png
4096 buffer-test-0.png
4096 buffer-test-1.png
4744 introspect.png
172032 scaling.png
seem to come out correctly.
Is this a positive outcome? I hope it provides you with some useful
feedback.
Eric
http://pippin.gimp.org/gegl/gegl-demo.tgz
/Øyvind K.
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