VRTowerDef/Plugins/MetaXR/Source/OculusXRHMD/Private/OculusXRHMD_CustomPresent_D...

119 lines
4.1 KiB
C++

// @lint-ignore-every LICENSELINT
// Copyright Epic Games, Inc. All Rights Reserved.
#include "OculusXRHMD_CustomPresent.h"
#include "OculusXRHMDPrivateRHI.h"
#if OCULUS_HMD_SUPPORTED_PLATFORMS_D3D11
#include "OculusXRHMD.h"
#ifndef WINDOWS_PLATFORM_TYPES_GUARD
#include "Windows/AllowWindowsPlatformTypes.h"
#endif
namespace OculusXRHMD
{
//-------------------------------------------------------------------------------------------------
// FD3D11CustomPresent
//-------------------------------------------------------------------------------------------------
class FD3D11CustomPresent : public FCustomPresent
{
public:
FD3D11CustomPresent(FOculusXRHMD* InOculusXRHMD);
// Implementation of FCustomPresent, called by Plugin itself
virtual bool IsUsingCorrectDisplayAdapter() const override;
virtual void* GetOvrpDevice() const override;
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;
};
FD3D11CustomPresent::FD3D11CustomPresent(FOculusXRHMD* InOculusXRHMD)
: FCustomPresent(InOculusXRHMD, ovrpRenderAPI_D3D11, PF_B8G8R8A8, true)
{
switch (GPixelFormats[PF_DepthStencil].PlatformFormat)
{
case DXGI_FORMAT_R24G8_TYPELESS:
DefaultDepthOvrpTextureFormat = ovrpTextureFormat_D24_S8;
break;
case DXGI_FORMAT_R32G8X24_TYPELESS:
DefaultDepthOvrpTextureFormat = ovrpTextureFormat_D32_FP_S8;
break;
default:
UE_LOG(LogHMD, Error, TEXT("Unrecognized depth buffer format"));
break;
}
}
bool FD3D11CustomPresent::IsUsingCorrectDisplayAdapter() const
{
const void* luid;
if (OVRP_SUCCESS(FOculusXRHMDModule::GetPluginWrapper().GetDisplayAdapterId2(&luid)) && luid)
{
TRefCountPtr<ID3D11Device> D3D11Device;
ExecuteOnRenderThread([&D3D11Device]() {
D3D11Device = (ID3D11Device*)RHIGetNativeDevice();
});
if (D3D11Device)
{
TRefCountPtr<IDXGIDevice> DXGIDevice;
TRefCountPtr<IDXGIAdapter> DXGIAdapter;
DXGI_ADAPTER_DESC DXGIAdapterDesc;
if (SUCCEEDED(D3D11Device->QueryInterface(__uuidof(IDXGIDevice), (void**)DXGIDevice.GetInitReference())) && SUCCEEDED(DXGIDevice->GetAdapter(DXGIAdapter.GetInitReference())) && SUCCEEDED(DXGIAdapter->GetDesc(&DXGIAdapterDesc)))
{
return !FMemory::Memcmp(luid, &DXGIAdapterDesc.AdapterLuid, sizeof(LUID));
}
}
}
// Not enough information. Assume that we are using the correct adapter.
return true;
}
void* FD3D11CustomPresent::GetOvrpDevice() const
{
return GetID3D11DynamicRHI()->RHIGetDevice();
}
FTextureRHIRef FD3D11CustomPresent::CreateTexture_RenderThread(uint32 InSizeX, uint32 InSizeY, EPixelFormat InFormat, FClearValueBinding InBinding, uint32 InNumMips, uint32 InNumSamples, uint32 InNumSamplesTileMem, ERHIResourceType InResourceType, ovrpTextureHandle InTexture, ETextureCreateFlags InTexCreateFlags)
{
CheckInRenderThread();
switch (InResourceType)
{
case RRT_Texture2D:
return GetID3D11DynamicRHI()->RHICreateTexture2DFromResource(InFormat, InTexCreateFlags, InBinding, (ID3D11Texture2D*)InTexture).GetReference();
case RRT_Texture2DArray:
return GetID3D11DynamicRHI()->RHICreateTexture2DArrayFromResource(InFormat, InTexCreateFlags, InBinding, (ID3D11Texture2D*)InTexture).GetReference();
case RRT_TextureCube:
return GetID3D11DynamicRHI()->RHICreateTextureCubeFromResource(InFormat, InTexCreateFlags | TexCreate_TargetArraySlicesIndependently, InBinding, (ID3D11Texture2D*)InTexture).GetReference();
default:
return nullptr;
}
}
//-------------------------------------------------------------------------------------------------
// APIs
//-------------------------------------------------------------------------------------------------
FCustomPresent* CreateCustomPresent_D3D11(FOculusXRHMD* InOculusXRHMD)
{
return new FD3D11CustomPresent(InOculusXRHMD);
}
} // namespace OculusXRHMD
#if PLATFORM_WINDOWS
#undef WINDOWS_PLATFORM_TYPES_GUARD
#endif
#endif // OCULUS_HMD_SUPPORTED_PLATFORMS_D3D11