[Gegl-developer] Tiles Buffer and Pyramids question

[geert.jordaens at telenet.be]

hello, 

when brouwsing trough the bug reports Bug 378115 got my attention. 
I'm trying to figure out hou the buffer and tile's interact with each other. 
It seems to me that depending the call of gegl_buffer_get_scaled one pyramid level is calculated. 
Is there realy a image pyramid? Should the image pyramid not be included in the tiles? 
(As a consequence this would increase the tile size to 1 + 1/3.) 

Geert