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Optimize D3D12 with D3D12_HEAP_FLAG_CREATE_NOT_ZEROED in some cases

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This commit is contained in:
Wojtek Figat
2025-09-09 22:54:37 +02:00
parent 19d0d3b683
commit 64c62f269c
2 changed files with 4 additions and 2 deletions
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3
Source/Engine/GraphicsDevice/DirectX/DX12/GPUBufferDX12.cpp
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@@ -136,8 +136,9 @@ bool GPUBufferDX12::OnInit()
// Create resource
ID3D12Resource* resource;
D3D12_HEAP_FLAGS heapFlags = D3D12_HEAP_FLAG_CREATE_NOT_ZEROED;
D3D12_RESOURCE_STATES initialState = D3D12_RESOURCE_STATE_COMMON;
VALIDATE_DIRECTX_CALL(_device->GetDevice()->CreateCommittedResource(&heapProperties, D3D12_HEAP_FLAG_NONE, &resourceDesc, initialState, nullptr, IID_PPV_ARGS(&resource)));
VALIDATE_DIRECTX_CALL(_device->GetDevice()->CreateCommittedResource(&heapProperties, heapFlags, &resourceDesc, initialState, nullptr, IID_PPV_ARGS(&resource)));
// Set state
initResource(resource, initialState, 1);

3
Source/Engine/GraphicsDevice/DirectX/DX12/GPUTextureDX12.cpp
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@@ -159,7 +159,8 @@ bool GPUTextureDX12::OnInit()
initialState = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE | D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE;
// Create texture
auto result = device->CreateCommittedResource(&heapProperties, D3D12_HEAP_FLAG_NONE, &resourceDesc, initialState, clearValuePtr, IID_PPV_ARGS(&resource));
D3D12_HEAP_FLAGS heapFlags = useRTV || useDSV ? D3D12_HEAP_FLAG_CREATE_NOT_ZEROED : D3D12_HEAP_FLAG_NONE;
auto result = device->CreateCommittedResource(&heapProperties, heapFlags, &resourceDesc, initialState, clearValuePtr, IID_PPV_ARGS(&resource));
LOG_DIRECTX_RESULT_WITH_RETURN(result, true);
// Set state