
We'll never scan out, which is why ADDFB2 is required otherwise, and we won't enable the DMA buffer extension if 'EGL_EXT_image_dma_buf_import_modifiers' is missing, so send modifiers in this case. This also happens to avoid crashing when the GPU is null, since we'd otherwise attempt to dereference it. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2578>