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This represents UE4/Main @ 14768117 For ReleaseObjectVersion.h #lockdown Marcus.Wassmer [CL 14811440 by Marc Audy in ue5-main branch]
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "stdafx.h"
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#include "TextureShareD3D12Helper.h"
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bool FTextureShareD3D12Helper::IsTexturesEqual(ID3D12Resource* Texture1, ID3D12Resource* Texture2)
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{
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if (Texture1 && Texture2)
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{
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D3D12_RESOURCE_DESC Desc1 = Texture1->GetDesc();
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D3D12_RESOURCE_DESC Desc2 = Texture2->GetDesc();
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return (Desc1.Width == Desc2.Width) && (Desc1.Height == Desc2.Height) && (Desc1.Format == Desc2.Format);
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}
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return false;
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}
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bool FTextureShareD3D12Helper::CreateSRVTexture(ID3D12Device* pD3D12Device, ID3D12DescriptorHeap* pD3D12HeapSRV, ID3D12Resource* InSharedTexture, ID3D12Resource** OutSRVTexture, int SRVIndex)
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{
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D3D12_RESOURCE_DESC SharedTextureDesc = InSharedTexture->GetDesc();
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D3D12_RESOURCE_DESC SRVTextureDesc = {};
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{
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SRVTextureDesc.Format = SharedTextureDesc.Format;
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SRVTextureDesc.Width = SharedTextureDesc.Width;
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SRVTextureDesc.Height = SharedTextureDesc.Height;
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SRVTextureDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
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SRVTextureDesc.MipLevels = 1;
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SRVTextureDesc.DepthOrArraySize = 1;
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SRVTextureDesc.SampleDesc.Count = 1;
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SRVTextureDesc.SampleDesc.Quality = 0;
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SRVTextureDesc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
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}
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HRESULT hResult = pD3D12Device->CreateCommittedResource(
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&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT),
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D3D12_HEAP_FLAG_NONE,
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&SRVTextureDesc,
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D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE,
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nullptr,
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__uuidof(ID3D12Resource), (void**)(OutSRVTexture));
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if (SUCCEEDED(hResult))
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{
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// Describe and create a SRV for the texture.
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D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
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srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
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srvDesc.Format = SRVTextureDesc.Format;
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srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
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srvDesc.Texture2D.MipLevels = 1;
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D3D12_CPU_DESCRIPTOR_HANDLE handle = pD3D12HeapSRV->GetCPUDescriptorHandleForHeapStart();
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uint32 DescriptorSize = pD3D12Device->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
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handle.ptr += SRVIndex * DescriptorSize;
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pD3D12Device->CreateShaderResourceView(*OutSRVTexture, &srvDesc, handle);
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}
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return SUCCEEDED(hResult);
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}
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void FTextureShareD3D12Helper::CopyResource(ID3D12GraphicsCommandList* pCmdList, ID3D12Resource* SourceTexture2D, ID3D12Resource* DestTexture2D)
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{
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pCmdList->CopyResource(DestTexture2D, SourceTexture2D);
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}
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