No subject

etc. at the gallium boundary, it's preferable if all actions are
interposable - ie. all actions are mediated by a function call of some
sort into the gallium interface.  Giving a component a direct memory
access into buffer contents would tend to defeat that and make
record/replay of that action difficult.

Is it possible to get a description of what you're doing at a slightly
higher level to try and understand if there's a solution without these
drawbacks?

Keith