Bug 200200 – [WebGPU] Replace Vectors with HashSets for tracking resources used by GPUCommandBuffer

• Component: New Bugs
• Status: RESOLVED FIXED

[Justin Fan]

[WebGPU] Replace Vectors with HashSets for tracking resources used by GPUCommandBuffer

[Justin Fan]

Created attachment 375036 [details]
Patch

[Justin Fan]

Created attachment 375038 [details]
Patch

[Justin Fan]

Created attachment 375039 [details]
Patch

[Myles C. Maxfield]

Comment on attachment 375039 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=375039&action=review

> Source/WebCore/Modules/webgpu/WHLSL/Metal/WHLSLTypeNamer.cpp:-347
> -    auto addResult = m_unnamedTypeMapping.add(&unnamedType, &*iterator);

How did this ever compile? I thought unused variables produced errors

> Source/WebCore/platform/graphics/gpu/GPUCommandBuffer.h:103
> +    void useBuffer(Ref<GPUBuffer>&& buffer) { m_usedBuffers.addVoid(WTFMove(buffer)); }
> +    void useTexture(Ref<GPUTexture>&& texture) { m_usedTextures.addVoid(WTFMove(texture)); }

I see a lot of production, but no consumption. Do the functions that we're using for consumption just happen to be named the same between Vectors and HashSets?

[Justin Fan]

Comment on attachment 375039 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=375039&action=review

>> Source/WebCore/Modules/webgpu/WHLSL/Metal/WHLSLTypeNamer.cpp:-347
>> -    auto addResult = m_unnamedTypeMapping.add(&unnamedType, &*iterator);
> 
> How did this ever compile? I thought unused variables produced errors

No idea. Maybe saam has some local flags turned off. EWS doesn't build WebGPU anymore right?

>> Source/WebCore/platform/graphics/gpu/GPUCommandBuffer.h:103
>> +    void useTexture(Ref<GPUTexture>&& texture) { m_usedTextures.addVoid(WTFMove(texture)); }
> 
> I see a lot of production, but no consumption. Do the functions that we're using for consumption just happen to be named the same between Vectors and HashSets?

Command buffers can't be reused in our impl, so I iterate through this container to process them rather than removing from them. They get released when the command buffer is released.

Bind groups are immutable once created so no issues there.

[Justin Fan]

Created attachment 375090 [details]
Patch for landing

[WebKit Commit Bot]

Comment on attachment 375090 [details]
Patch for landing

Clearing flags on attachment: 375090

Committed r247930: <https://trac.webkit.org/changeset/247930>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Radar WebKit Bug Importer]

<rdar://problem/53686819>