tree 0ef401cc66ab641d5e2ce25626a08a174d115b4f
parent 611445dcf3d86e19502b689fc1c1235d5eaf151c
author Chip Davis <cdavis@codeweavers.com> 1602379366 -0500
committer Chip Davis <cdavis@codeweavers.com> 1602518561 -0500

MVKQueue: Only create one GPUCaptureScope per queue.

The `MTLCaptureManager`--at least, the one in the capture layer--uniques
capture scopes created for queues. The two scopes we created--for
command buffer submission and surface presentation, respectively--wound
up referring to the same scope. So don't even bother creating a second
one. Use one scope for everything on the queue.

Since there's no need for the 'purpose' parameter anymore, remove it.

Honestly, I think this is a shame. It's useful to be able to create
distinct scopes for command buffer submission and swapchain
presentation. I've filed FB8791712 to get Apple to let us create
multiple scopes for a single queue. Unfortunately, until that's
resolved, because the objects are uniqued, this will interfere with a
forthcoming workaround for a retain bug in Metal relating to capture
scopes.