tree 28dc949df14c038fc80e1079e3a3fffeec69488b
parent 951af52ed6124e25cb834f848b0055a655d37990
author Courtney Goeltzenleuchter <courtneygo@google.com> 1452280723 -0700
committer Jon Ashburn <jon@lunarg.com> 1453338295 -0700

loader: implement new layer init method

New layer init method requires the construction of
Link information for CreateInstance and CreateDevice
that is accessible to layers via the CreateInfo.pNext pointer.
The layer can then use the Get*ProcAddr from the Link
structure to initialize their dispatch table if the
call down the chain returns successfully.
This removes the need to do special initialization work
at Get*ProcAddr time.
Layer Get*ProcAddr now return their internal function
pointers regardless of the value of instance or device.
Only need to have valid instance & device when looking
up extensions or when passing the request down the chain.
This mechanism allows us to remove object wrapping used
by the loader previously. Also simplifies the dispatch table
setup.

Conflicts:
	layers/device_limits.cpp
	layers/draw_state.cpp
	loader/loader.c
	loader/trampoline.c