5d0e191710
The colorspace conversion happens during the upload so the necessary hints must be provided to ensure that the conversion works correctly. At least the Mesa Intel driver will create a texture without error but produces an incorrect result. Use eglQueryDmaBufModifiersEXT() to check if non-external upload is supported for the given format. Based on a patch from Carlos Rafael Giani <dv@pseudoterminal.org>. https://bugzilla.gnome.org/show_bug.cgi?id=783521