cogl: Turn TextureDriver into an abstract object
The motivation is to ease sharing bits between the various texture drivers implementations. The same thing would be done for DriverVtable & WinsysVtable.
Helps indirectly with !4132 (merged)
The motivation is to ease sharing bits between the various texture drivers implementations. The same thing would be done for DriverVtable & WinsysVtable.
Helps indirectly with !4132 (merged)