115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
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// @lint-ignore-every LICENSELINT
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "OculusXRHMD_CustomPresent.h"
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#include "OculusXRHMDPrivateRHI.h"
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#if OCULUS_HMD_SUPPORTED_PLATFORMS_D3D12
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#include "OculusXRHMD.h"
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#ifndef WINDOWS_PLATFORM_TYPES_GUARD
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#include "Windows/AllowWindowsPlatformTypes.h"
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#endif
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namespace OculusXRHMD
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{
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//-------------------------------------------------------------------------------------------------
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// FCustomPresentD3D12
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//-------------------------------------------------------------------------------------------------
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class FD3D12CustomPresent : public FCustomPresent
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{
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public:
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FD3D12CustomPresent(FOculusXRHMD* InOculusXRHMD);
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// Implementation of FCustomPresent, called by Plugin itself
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virtual bool IsUsingCorrectDisplayAdapter() const override;
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virtual void* GetOvrpDevice() const override;
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virtual FTextureRHIRef CreateTexture_RenderThread(uint32 InSizeX, uint32 InSizeY, EPixelFormat InFormat, FClearValueBinding InBinding, uint32 InNumMips, uint32 InNumSamples, uint32 InNumSamplesTileMem, ERHIResourceType InResourceType, ovrpTextureHandle InTexture, ETextureCreateFlags InTexCreateFlags) override;
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};
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FD3D12CustomPresent::FD3D12CustomPresent(FOculusXRHMD* InOculusXRHMD)
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: FCustomPresent(InOculusXRHMD, ovrpRenderAPI_D3D12, PF_B8G8R8A8, true)
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{
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switch (GPixelFormats[PF_DepthStencil].PlatformFormat)
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{
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case DXGI_FORMAT_R24G8_TYPELESS:
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DefaultDepthOvrpTextureFormat = ovrpTextureFormat_D24_S8;
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break;
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case DXGI_FORMAT_R32G8X24_TYPELESS:
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DefaultDepthOvrpTextureFormat = ovrpTextureFormat_D32_FP_S8;
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break;
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default:
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UE_LOG(LogHMD, Error, TEXT("Unrecognized depth buffer format"));
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break;
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}
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}
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bool FD3D12CustomPresent::IsUsingCorrectDisplayAdapter() const
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{
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const void* luid;
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if (OVRP_SUCCESS(FOculusXRHMDModule::GetPluginWrapper().GetDisplayAdapterId2(&luid)) && luid)
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{
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TRefCountPtr<ID3D12Device> D3DDevice;
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ExecuteOnRenderThread([&D3DDevice]() {
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D3DDevice = (ID3D12Device*)RHIGetNativeDevice();
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});
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if (D3DDevice)
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{
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LUID AdapterLuid = D3DDevice->GetAdapterLuid();
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return !FMemory::Memcmp(luid, &AdapterLuid, sizeof(LUID));
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}
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}
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// Not enough information. Assume that we are using the correct adapter.
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return true;
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}
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void* FD3D12CustomPresent::GetOvrpDevice() const
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{
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return GetID3D12DynamicRHI()->RHIGetCommandQueue();
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}
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FTextureRHIRef FD3D12CustomPresent::CreateTexture_RenderThread(uint32 InSizeX, uint32 InSizeY, EPixelFormat InFormat, FClearValueBinding InBinding, uint32 InNumMips, uint32 InNumSamples, uint32 InNumSamplesTileMem, ERHIResourceType InResourceType, ovrpTextureHandle InTexture, ETextureCreateFlags InTexCreateFlags)
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{
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CheckInRenderThread();
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ID3D12DynamicRHI* DynamicRHI = GetID3D12DynamicRHI();
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switch (InResourceType)
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{
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case RRT_Texture2D:
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return DynamicRHI->RHICreateTexture2DFromResource(InFormat, InTexCreateFlags, InBinding, (ID3D12Resource*)InTexture).GetReference();
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case RRT_Texture2DArray:
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return DynamicRHI->RHICreateTexture2DArrayFromResource(InFormat, InTexCreateFlags, InBinding, (ID3D12Resource*)InTexture).GetReference();
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case RRT_TextureCube:
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return DynamicRHI->RHICreateTextureCubeFromResource(InFormat, InTexCreateFlags, InBinding, (ID3D12Resource*)InTexture).GetReference();
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default:
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return nullptr;
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}
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}
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//-------------------------------------------------------------------------------------------------
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// APIs
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//-------------------------------------------------------------------------------------------------
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FCustomPresent* CreateCustomPresent_D3D12(FOculusXRHMD* InOculusXRHMD)
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{
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return new FD3D12CustomPresent(InOculusXRHMD);
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}
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} // namespace OculusXRHMD
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#if PLATFORM_WINDOWS
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#undef WINDOWS_PLATFORM_TYPES_GUARD
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#endif
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#endif // OCULUS_HMD_SUPPORTED_PLATFORMS_D3D12
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