public static void MemcpySubresource([NativeTypeName("const D3D12_MEMCPY_DEST *")] D3D12_MEMCPY_DEST *pDest, [NativeTypeName("const void *")] void *pResourceData, [NativeTypeName("const D3D12_SUBRESOURCE_INFO *")] D3D12_SUBRESOURCE_INFO *pSrc, [NativeTypeName("SIZE_T")] nuint RowSizeInBytes, [NativeTypeName("UINT")] uint NumRows, [NativeTypeName("UINT")] uint NumSlices)
{
for (var z = 0u; z < NumSlices; ++z)
{
var pDestSlice = (byte *)pDest->pData + pDest->SlicePitch * z;
var pSrcSlice = ((byte *)pResourceData + pSrc->Offset) + pSrc->DepthPitch * (nint)z;
for (var y = 0u; y < NumRows; ++y)
{
Buffer.MemoryCopy(
pSrcSlice + pSrc->RowPitch * (nint)y,
pDestSlice + pDest->RowPitch * y,
(ulong)RowSizeInBytes,
(ulong)RowSizeInBytes
);
}
}
}
public static ulong UpdateSubresources([NativeTypeName("ID3D12GraphicsCommandList *")] ID3D12GraphicsCommandList *pCmdList, [NativeTypeName("ID3D12Resource *")] ID3D12Resource *pDestinationResource, [NativeTypeName("ID3D12Resource *")] ID3D12Resource *pIntermediate, [NativeTypeName("UINT64")] ulong IntermediateOffset, [NativeTypeName("UINT")] uint FirstSubresource, [NativeTypeName("UINT")] uint NumSubresources, [NativeTypeName("const void *")] void *pResourceData, [NativeTypeName("D3D12_SUBRESOURCE_INFO *")] D3D12_SUBRESOURCE_INFO *pSrcData)
{
ulong RequiredSize = 0;
ulong MemToAlloc = (ulong)(sizeof(D3D12_PLACED_SUBRESOURCE_FOOTPRINT) + sizeof(uint) + sizeof(ulong)) * NumSubresources;
if (MemToAlloc > unchecked ((nuint)(-1)))
{
return(0);
}
var pMem = HeapAlloc(GetProcessHeap(), 0, (nuint)MemToAlloc);
if (pMem == null)
{
return(0);
}
var pLayouts = (D3D12_PLACED_SUBRESOURCE_FOOTPRINT *)pMem;
ulong *pRowSizesInBytes = (ulong *)(pLayouts + NumSubresources);
uint * pNumRows = (uint *)(pRowSizesInBytes + NumSubresources);
var Desc = pDestinationResource->GetDesc();
ID3D12Device *pDevice = null;
var iid = IID_ID3D12Device;
pDestinationResource->GetDevice(&iid, (void **)&pDevice);
pDevice->GetCopyableFootprints(&Desc, FirstSubresource, NumSubresources, IntermediateOffset, pLayouts, pNumRows, pRowSizesInBytes, &RequiredSize);
pDevice->Release();
ulong Result = UpdateSubresources(pCmdList, pDestinationResource, pIntermediate, FirstSubresource, NumSubresources, RequiredSize, pLayouts, pNumRows, pRowSizesInBytes, pResourceData, pSrcData);
HeapFree(GetProcessHeap(), 0, pMem);
return(Result);
}
public static ulong UpdateSubresources([NativeTypeName("UINT")] uint MaxSubresources, [NativeTypeName("ID3D12GraphicsCommandList *")] ID3D12GraphicsCommandList *pCmdList, [NativeTypeName("ID3D12Resource *")] ID3D12Resource *pDestinationResource, [NativeTypeName("ID3D12Resource *")] ID3D12Resource *pIntermediate, [NativeTypeName("UINT64")] ulong IntermediateOffset, [NativeTypeName("UINT")] uint FirstSubresource, [NativeTypeName("UINT")] uint NumSubresources, [NativeTypeName("const void *")] void *pResourceData, [NativeTypeName("D3D12_SUBRESOURCE_INFO *")] D3D12_SUBRESOURCE_INFO *pSrcData)
{
ulong RequiredSize = 0;
D3D12_PLACED_SUBRESOURCE_FOOTPRINT *Layouts = stackalloc D3D12_PLACED_SUBRESOURCE_FOOTPRINT[(int)MaxSubresources];
uint * NumRows = stackalloc uint[(int)MaxSubresources];
ulong *RowSizesInBytes = stackalloc ulong[(int)MaxSubresources];
var Desc = pDestinationResource->GetDesc();
ID3D12Device *pDevice = null;
var iid = IID_ID3D12Device;
pDestinationResource->GetDevice(&iid, (void **)&pDevice);
pDevice->GetCopyableFootprints(&Desc, FirstSubresource, NumSubresources, IntermediateOffset, Layouts, NumRows, RowSizesInBytes, &RequiredSize);
pDevice->Release();
return(UpdateSubresources(pCmdList, pDestinationResource, pIntermediate, FirstSubresource, NumSubresources, RequiredSize, Layouts, NumRows, RowSizesInBytes, pResourceData, pSrcData));
}
public static ulong UpdateSubresources([NativeTypeName("ID3D12GraphicsCommandList *")] ID3D12GraphicsCommandList *pCmdList, [NativeTypeName("ID3D12Resource *")] ID3D12Resource *pDestinationResource, [NativeTypeName("ID3D12Resource *")] ID3D12Resource *pIntermediate, [NativeTypeName("UINT")] uint FirstSubresource, [NativeTypeName("UINT")] 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 void *")] void *pResourceData, [NativeTypeName("const D3D12_SUBRESOURCE_INFO *")] D3D12_SUBRESOURCE_INFO *pSrcData)
{
var IntermediateDesc = pIntermediate->GetDesc();
var DestinationDesc = pDestinationResource->GetDesc();
if (IntermediateDesc.Dimension != D3D12_RESOURCE_DIMENSION_BUFFER || IntermediateDesc.Width < RequiredSize + pLayouts[0].Offset || RequiredSize > unchecked ((nuint)(-1)) || (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] > unchecked ((nuint)(-1)))
{
return(0);
}
D3D12_MEMCPY_DEST DestData = new D3D12_MEMCPY_DEST
{
pData = pData + pLayouts[i].Offset,
RowPitch = (nuint)pLayouts[i].Footprint.RowPitch,
SlicePitch = (nuint)(pLayouts[i].Footprint.RowPitch * pNumRows[i])
};
MemcpySubresource(&DestData, pResourceData, &pSrcData[i], (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 (var i = 0u; 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);
}
