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D3D12: Stage BindGroups on CPU descriptor heaps.

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Instead of directly populating GPU heaps, pre-encoded
BindGroups are staged on CPU heaps then copied over
to the GPU. Non-shader visible allocators are stored
on the BGL, which hands out fixed-size chunks to
simplify memory managment. To enable memory re-use,
CPU allocations are tied to the lifetime of BindGroup
objects.

BUG=dawn:155

Change-Id: I402e6686c96f7450a077c627c8499600979e426c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18100
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This commit is contained in:
Bryan Bernhart
2020-04-03 16:52:28 +00:00
committed by Commit Bot service account
parent c00163ba09
commit 2479860e4b
14 changed files with 686 additions and 80 deletions
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src/common/Math.h
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@@ -29,6 +29,7 @@ uint32_t ScanForward(uint32_t bits);
uint32_t Log2(uint32_t value);
uint32_t Log2(uint64_t value);
bool IsPowerOfTwo(uint64_t n);
uint64_t RoundUp(uint64_t n, uint64_t m);
uint64_t NextPowerOfTwo(uint64_t n);
bool IsPtrAligned(const void* ptr, size_t alignment);