On 20/04/17 10:53, Eric Anholt wrote:
Timothy Arceri <tarc...@itsqueeze.com> writes:
This extension is not supported by GLVND, also as far
as I can tell this extension requires us to do extra
locking for objects that are not normaly shared across
contexts, like vertex array and pipeline objects.
Can you explain how it would require extra locking? The extension
requires that the user not enter the same GL context twice at the same
time -- is there something else missing?
So you can't end up with tread 1 calling glGenVertexArrays() while
thread 2 does some other call that requires a lookup of the vertex array
object hash table (which could currently be in the middle of rehashing
from the insert in glGenVertexArrays())?
I didn't see anything that forbids this. It's totally possible I'm
misunderstanding this extension, if you could set me straight that would
be great.
My thinking is that we should be able to do something like this:
https://github.com/tarceri/Mesa/commit/7e036b95012c709acf9ffeee575c17e274478953
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