public static ulong UpdateSubresources(ID3D12GraphicsCommandList *pCmdList, ID3D12Resource *pDestinationResource, ID3D12Resource *pIntermediate, uint FirstSubresource, uint NumSubresources, [NativeTypeName("UINT64")] ulong RequiredSize, [NativeTypeName("const D3D12_PLACED_SUBRESOURCE_FOOTPRINT *")] D3D12_PLACED_SUBRESOURCE_FOOTPRINT *pLayouts, [NativeTypeName("const UINT *")] uint *pNumRows, [NativeTypeName("const UINT64 *")] ulong *pRowSizesInBytes, [NativeTypeName("const D3D12_SUBRESOURCE_DATA *")] D3D12_SUBRESOURCE_DATA *pSrcData)
{
D3D12_RESOURCE_DESC IntermediateDesc = pIntermediate->GetDesc();
D3D12_RESOURCE_DESC DestinationDesc = pDestinationResource->GetDesc();
if (unchecked (IntermediateDesc.Dimension != D3D12_RESOURCE_DIMENSION_BUFFER || IntermediateDesc.Width < RequiredSize + pLayouts[0].Offset || RequiredSize > (nuint)(-1)) || (DestinationDesc.Dimension == D3D12_RESOURCE_DIMENSION_BUFFER && (FirstSubresource != 0 || NumSubresources != 1)))
{
return(0);
}
byte * pData;
HRESULT hr = pIntermediate->Map(0, null, (void **)(&pData));
if ((((HRESULT)(hr)) < 0))
{
return(0);
}
for (uint i = 0; i < NumSubresources; ++i)
{
if (pRowSizesInBytes[i] > unchecked ((nuint)(-1)))
{
return(0);
}
D3D12_MEMCPY_DEST DestData = new D3D12_MEMCPY_DEST
{
pData = pData + pLayouts[i].Offset,
RowPitch = pLayouts[i].Footprint.RowPitch,
SlicePitch = unchecked ((nuint)(pLayouts[i].Footprint.RowPitch) * (nuint)(pNumRows[i])),
};
MemcpySubresource(&DestData, &pSrcData[i], unchecked ((nuint)(pRowSizesInBytes[i])), pNumRows[i], pLayouts[i].Footprint.Depth);
}
pIntermediate->Unmap(0, null);
if (DestinationDesc.Dimension == D3D12_RESOURCE_DIMENSION_BUFFER)
{
pCmdList->CopyBufferRegion(pDestinationResource, 0, pIntermediate, pLayouts[0].Offset, pLayouts[0].Footprint.Width);
}
else
{
for (uint i = 0; i < NumSubresources; ++i)
{
D3D12_TEXTURE_COPY_LOCATION Dst = new D3D12_TEXTURE_COPY_LOCATION(pDestinationResource, i + FirstSubresource);
D3D12_TEXTURE_COPY_LOCATION Src = new D3D12_TEXTURE_COPY_LOCATION(pIntermediate, pLayouts[i]);
pCmdList->CopyTextureRegion(&Dst, 0, 0, 0, &Src, null);
}
}
return(RequiredSize);
}
public static ulong UpdateSubresources(ID3D12GraphicsCommandList *pCmdList, ID3D12Resource *pDestinationResource, ID3D12Resource *pIntermediate, uint FirstSubresource, uint NumSubresources, ulong RequiredSize, D3D12_PLACED_SUBRESOURCE_FOOTPRINT *pLayouts, uint *pNumRows, ulong *pRowSizesInBytes, D3D12_SUBRESOURCE_DATA *pSrcData)
{
// Minor validation
D3D12_RESOURCE_DESC IntermediateDesc;
pIntermediate->GetDesc(&IntermediateDesc);
D3D12_RESOURCE_DESC DestinationDesc;
pDestinationResource->GetDesc(&DestinationDesc);
if (IntermediateDesc.Dimension != D3D12_RESOURCE_DIMENSION_BUFFER ||
IntermediateDesc.Width < RequiredSize + pLayouts[0].Offset ||
RequiredSize > ((IntPtr.Size == 4) ? uint.MaxValue : ulong.MaxValue) ||
(DestinationDesc.Dimension == D3D12_RESOURCE_DIMENSION_BUFFER &&
(FirstSubresource != 0 || NumSubresources != 1)))
{
return(0);
}
byte *pData;
int hr = pIntermediate->Map(0, null, (void **)(&pData));
if (FAILED(hr))
{
return(0);
}
for (var i = 0u; i < NumSubresources; ++i)
{
if (pRowSizesInBytes[i] > ((IntPtr.Size == 4) ? uint.MaxValue : ulong.MaxValue))
{
return(0);
}
var DestData = new D3D12_MEMCPY_DEST
{
pData = pData + pLayouts[i].Offset,
RowPitch = (UIntPtr)(pLayouts[i].Footprint.RowPitch),
SlicePitch = (UIntPtr)(pLayouts[i].Footprint.RowPitch * pNumRows[i])
};
MemcpySubresource(&DestData, &pSrcData[i], (UIntPtr)pRowSizesInBytes[i], pNumRows[i], pLayouts[i].Footprint.Depth);
}
pIntermediate->Unmap(0, null);
if (DestinationDesc.Dimension == D3D12_RESOURCE_DIMENSION_BUFFER)
{
var SrcBox = new D3D12_BOX
{
left = (uint)pLayouts[0].Offset,
top = 0,
front = 0,
right = (uint)pLayouts[0].Offset + pLayouts[0].Footprint.Width,
bottom = 1,
back = 1
};
pCmdList->CopyBufferRegion(
pDestinationResource, 0, pIntermediate, pLayouts[0].Offset, pLayouts[0].Footprint.Width);
}
else
{
for (var i = 0u; i < NumSubresources; ++i)
{
var Dst = new D3D12_TEXTURE_COPY_LOCATION
{
pResource = pDestinationResource,
Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX,
Anonymous = new D3D12_TEXTURE_COPY_LOCATION._Anonymous_e__Union
{
SubresourceIndex = i + FirstSubresource
}
};
var Src = new D3D12_TEXTURE_COPY_LOCATION
{
pResource = pIntermediate,
Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT,
Anonymous = new D3D12_TEXTURE_COPY_LOCATION._Anonymous_e__Union
{
PlacedFootprint = pLayouts[i]
}
};
pCmdList->CopyTextureRegion(&Dst, 0, 0, 0, &Src, null);
}
}
return(RequiredSize);
}
