- replaced BKE_copy_images with BKE_export_image, now it handles only one image at a time, this is better since for exporters it is
easier to export one image at a time writing new image path to a file
- exposing BKE_export_image in RNA as Image.export, interestingly, RNA allowed me to define a function with PROP_STRING return type
although it doesn't free memory, will fix that in the next commit
- removed bpy.util.copy_images
Unit tests:
- re-wrote a test for BKE_export_image, it's more compact now
- moved unit tests to the creator module to avoid another executable, now running tests with `blender --test`
- as before, unit tests are built only if WITH_BF_UNIT_TEST is non 0
Unit tests:
- add a check that BKE_copy_images produces NULL filepath for images having type other than IMA_TYPE_IMAGE
- also expect NULL filepath for images having empty filename
Enhanced BKE_copy_images so the tests pass.
Experimenting with cross-compiling my branch with MinGW on Linux:
- tweaked config/linuxcross.py, source/blender/makesdna/intern/SConscript and tools/Blender.py
So far linking fails.
- added (uncommented actually) PoseChannel.pose_matrix
- added Object.dag_update that calls DAG_object_flush_update. I'm not sure if it's needed, but FBX exporter uses it.
Changing Scene.current_frame doesn't work in this case because it adds
a notifier.
Also added RNA_property_update call in pyrna_struct_setattro so that
notifiers are added when a property changes.
