FD3D11Texture2DSet* FD3D11Texture2DSet::D3D11CreateTexture2DSet(
FD3D11DynamicRHI* InD3D11RHI,
ovrSwapTextureSet* InTextureSet,
const D3D11_TEXTURE2D_DESC& InDsDesc,
EPixelFormat InFormat,
uint32 InFlags
)
{
check(InTextureSet);
TArray<TRefCountPtr<ID3D11RenderTargetView> > RenderTargetViews;
FD3D11Texture2DSet* NewTextureSet = new FD3D11Texture2DSet(
InD3D11RHI,
nullptr,
nullptr,
false,
1,
RenderTargetViews,
/*DepthStencilViews=*/ NULL,
InDsDesc.Width,
InDsDesc.Height,
0,
InDsDesc.MipLevels,
InDsDesc.SampleDesc.Count,
InFormat,
/*bInCubemap=*/ false,
InFlags,
/*bPooledTexture=*/ false
);
const uint32 TexCount = InTextureSet->TextureCount;
const bool bSRGB = (InFlags & TexCreate_SRGB) != 0;
const DXGI_FORMAT PlatformResourceFormat = (DXGI_FORMAT)GPixelFormats[InFormat].PlatformFormat;
const DXGI_FORMAT PlatformShaderResourceFormat = FindShaderResourceDXGIFormat(PlatformResourceFormat, bSRGB);
const DXGI_FORMAT PlatformRenderTargetFormat = FindShaderResourceDXGIFormat(PlatformResourceFormat, bSRGB);
D3D11_RTV_DIMENSION RenderTargetViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
if (InDsDesc.SampleDesc.Count > 1)
{
RenderTargetViewDimension = D3D11_RTV_DIMENSION_TEXTURE2DMS;
}
for (uint32 i = 0; i < TexCount; ++i)
{
ovrD3D11Texture D3DTex;
D3DTex.Texture = InTextureSet->Textures[i];
TArray<TRefCountPtr<ID3D11RenderTargetView> > RenderTargetViews;
if (InFlags & TexCreate_RenderTargetable)
{
// Create a render target view for each mip
for (uint32 MipIndex = 0; MipIndex < InDsDesc.MipLevels; MipIndex++)
{
check(!(InFlags & TexCreate_TargetArraySlicesIndependently)); // not supported
D3D11_RENDER_TARGET_VIEW_DESC RTVDesc;
FMemory::Memzero(&RTVDesc, sizeof(RTVDesc));
RTVDesc.Format = PlatformRenderTargetFormat;
RTVDesc.ViewDimension = RenderTargetViewDimension;
RTVDesc.Texture2D.MipSlice = MipIndex;
TRefCountPtr<ID3D11RenderTargetView> RenderTargetView;
VERIFYD3D11RESULT(InD3D11RHI->GetDevice()->CreateRenderTargetView(D3DTex.D3D11.pTexture, &RTVDesc, RenderTargetView.GetInitReference()));
RenderTargetViews.Add(RenderTargetView);
}
}
TRefCountPtr<ID3D11ShaderResourceView> ShaderResourceView = D3DTex.D3D11.pSRView;
// Create a shader resource view for the texture.
if (!ShaderResourceView && (InFlags & TexCreate_ShaderResource))
{
D3D11_SRV_DIMENSION ShaderResourceViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc;
SRVDesc.Format = PlatformShaderResourceFormat;
SRVDesc.ViewDimension = ShaderResourceViewDimension;
SRVDesc.Texture2D.MostDetailedMip = 0;
SRVDesc.Texture2D.MipLevels = InDsDesc.MipLevels;
VERIFYD3D11RESULT(InD3D11RHI->GetDevice()->CreateShaderResourceView(D3DTex.D3D11.pTexture, &SRVDesc, ShaderResourceView.GetInitReference()));
check(IsValidRef(ShaderResourceView));
}
NewTextureSet->AddTexture(D3DTex.D3D11.pTexture, ShaderResourceView, &RenderTargetViews);
}
NewTextureSet->TextureSet = InTextureSet;
NewTextureSet->InitWithCurrentElement();
return NewTextureSet;
}
FD3D11Texture2DSet* FD3D11Texture2DSet::D3D11CreateTexture2DSet(
FD3D11DynamicRHI* InD3D11RHI,
const FOvrSessionSharedPtr& InOvrSession,
ovrTextureSwapChain InTextureSet,
const D3D11_TEXTURE2D_DESC& InDsDesc,
EPixelFormat InFormat,
uint32 InFlags
)
{
FOvrSessionShared::AutoSession OvrSession(InOvrSession);
check(InTextureSet);
TArray<TRefCountPtr<ID3D11RenderTargetView> > TextureSetRenderTargetViews;
FD3D11Texture2DSet* NewTextureSet = new FD3D11Texture2DSet(
InD3D11RHI,
nullptr,
nullptr,
false,
1,
TextureSetRenderTargetViews,
/*DepthStencilViews=*/ NULL,
InDsDesc.Width,
InDsDesc.Height,
0,
InDsDesc.MipLevels,
InDsDesc.SampleDesc.Count,
InFormat,
/*bInCubemap=*/ false,
InFlags,
/*bPooledTexture=*/ false
);
int TexCount;
ovr_GetTextureSwapChainLength(OvrSession, InTextureSet, &TexCount);
const bool bSRGB = (InFlags & TexCreate_SRGB) != 0;
const DXGI_FORMAT PlatformResourceFormat = (DXGI_FORMAT)GPixelFormats[InFormat].PlatformFormat;
const DXGI_FORMAT PlatformShaderResourceFormat = FindShaderResourceDXGIFormat(PlatformResourceFormat, bSRGB);
const DXGI_FORMAT PlatformRenderTargetFormat = FindShaderResourceDXGIFormat(PlatformResourceFormat, bSRGB);
D3D11_RTV_DIMENSION RenderTargetViewDimension = D3D11_RTV_DIMENSION_TEXTURE2D;
if (InDsDesc.SampleDesc.Count > 1)
{
RenderTargetViewDimension = D3D11_RTV_DIMENSION_TEXTURE2DMS;
}
for (int32 i = 0; i < TexCount; ++i)
{
TRefCountPtr<ID3D11Texture2D> pD3DTexture;
ovrResult res = ovr_GetTextureSwapChainBufferDX(OvrSession, InTextureSet, i, IID_PPV_ARGS(pD3DTexture.GetInitReference()));
if (!OVR_SUCCESS(res))
{
UE_LOG(LogHMD, Error, TEXT("ovr_GetTextureSwapChainBufferDX failed, error = %d"), int(res));
return nullptr;
}
TArray<TRefCountPtr<ID3D11RenderTargetView> > RenderTargetViews;
if (InFlags & TexCreate_RenderTargetable)
{
// Create a render target view for each mip
for (uint32 MipIndex = 0; MipIndex < InDsDesc.MipLevels; MipIndex++)
{
check(!(InFlags & TexCreate_TargetArraySlicesIndependently)); // not supported
D3D11_RENDER_TARGET_VIEW_DESC RTVDesc;
FMemory::Memzero(&RTVDesc, sizeof(RTVDesc));
RTVDesc.Format = PlatformRenderTargetFormat;
RTVDesc.ViewDimension = RenderTargetViewDimension;
RTVDesc.Texture2D.MipSlice = MipIndex;
TRefCountPtr<ID3D11RenderTargetView> RenderTargetView;
VERIFYD3D11RESULT_EX(InD3D11RHI->GetDevice()->CreateRenderTargetView(pD3DTexture, &RTVDesc, RenderTargetView.GetInitReference()), InD3D11RHI->GetDevice());
RenderTargetViews.Add(RenderTargetView);
}
}
TRefCountPtr<ID3D11ShaderResourceView> ShaderResourceView;
// Create a shader resource view for the texture.
if (InFlags & TexCreate_ShaderResource)
{
D3D11_SRV_DIMENSION ShaderResourceViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
D3D11_SHADER_RESOURCE_VIEW_DESC SRVDesc;
SRVDesc.Format = PlatformShaderResourceFormat;
SRVDesc.ViewDimension = ShaderResourceViewDimension;
SRVDesc.Texture2D.MostDetailedMip = 0;
SRVDesc.Texture2D.MipLevels = InDsDesc.MipLevels;
VERIFYD3D11RESULT_EX(InD3D11RHI->GetDevice()->CreateShaderResourceView(pD3DTexture, &SRVDesc, ShaderResourceView.GetInitReference()), InD3D11RHI->GetDevice());
check(IsValidRef(ShaderResourceView));
}
NewTextureSet->AddTexture(pD3DTexture, ShaderResourceView, &RenderTargetViews);
}
if (InFlags & TexCreate_RenderTargetable)
{
NewTextureSet->SetCurrentGPUAccess(EResourceTransitionAccess::EWritable);
}
NewTextureSet->TextureSet = InTextureSet;
NewTextureSet->InitWithCurrentElement(0);
return NewTextureSet;
}