tree 3fabaf89cb93141418eb27c3f53ec593e2721bd0
parent f56f19059b12dd5dd358937b5af3d6394762c45e
author Austin Eng <enga@chromium.org> 1587597760 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1587597760 +0000

Slab-allocate VkDescriptorSets

This introduces a slab allocator for VkDescriptorSets which creates
a VkDescriptorPool pre-allocated with multiple VkDescriptorSets per
BindGroupLayout. In the future, we can deduplicate pools that have
the same, or roughly the same, descriptor counts.

This CL also removes the old DescriptorSetService and moves most of
the functionality onto the DescriptorSetAllocator itself to keep
the tracking logic in one place.

Bug: dawn:340
Change-Id: I785b17f4353fb3d40c9ccc33746600d6794efe7c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19320
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>