- output:renderer
- renderer:texture_from_pixels
- renderer:draw_texture
We need to be able to access the renderer outside of the post_render
hook (hence output:renderer) because we can't call
wlr_texture_from_pixels while rendering
texture_from_pixels accepts a string as the data argument not a
userdata, because that matches what we getk from GdkPixbuf.Pixbuf
new_from_file when using gobject-introspection.
