Amount of contiguous memory for 2D?

[anand b]

How much physically contiguous memory is required for 2D?

There is the following comment in libs/surfaceflinger/VRamHeap.cpp

/*
* Amount of memory we reserve for surface, per client in PMEM
* (PMEM is used for 2D acceleration)
* 8 MB of address space per client should be enough.
*/

This seems to be quiet a lot of pmem per client, as I imagine there
would be a lot of clients in the system.

Could anyone please clarify?

thanks,
anand