//*********************************************************
//
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License (MIT).
//
//*********************************************************
#pragma once
#ifndef __cplusplus
#error D3DX12 requires C++
#endif
#include "d3d12.h"
#include "d3dx12_core.h"
#include "d3dx12_property_format_table.h"
//------------------------------------------------------------------------------------------------
template <typename T, typename U, typename V>
inline void D3D12DecomposeSubresource( UINT Subresource, UINT MipLevels, UINT ArraySize, _Out_ T& MipSlice, _Out_ U& ArraySlice, _Out_ V& PlaneSlice ) noexcept
{
MipSlice = static_cast<T>(Subresource % MipLevels);
ArraySlice = static_cast<U>((Subresource / MipLevels) % ArraySize);
PlaneSlice = static_cast<V>(Subresource / (MipLevels * ArraySize));
}
//------------------------------------------------------------------------------------------------
// Row-by-row memcpy
inline void MemcpySubresource(
_In_ const D3D12_MEMCPY_DEST* pDest,
_In_ const D3D12_SUBRESOURCE_DATA* pSrc,
SIZE_T RowSizeInBytes,
UINT NumRows,
UINT NumSlices) noexcept
{
for (UINT z = 0; z < NumSlices; ++z)
{
auto pDestSlice = static_cast<BYTE*>(pDest->pData) + pDest->SlicePitch * z;
auto pSrcSlice = static_cast<const BYTE*>(pSrc->pData) + pSrc->SlicePitch * LONG_PTR(z);
for (UINT y = 0; y < NumRows; ++y)
{
memcpy(pDestSlice + pDest->RowPitch * y,
pSrcSlice + pSrc->RowPitch * LONG_PTR(y),
RowSizeInBytes);
}
}
}
//------------------------------------------------------------------------------------------------
// Row-by-row memcpy
inline void MemcpySubresource(
_In_ const D3D12_MEMCPY_DEST* pDest,
_In_ const void* pResourceData,
_In_ const D3D12_SUBRESOURCE_INFO* pSrc,
SIZE_T RowSizeInBytes,
UINT NumRows,
UINT NumSlices) noexcept
{
for (UINT z = 0; z < NumSlices; ++z)
{
auto pDestSlice = static_cast<BYTE*>(pDest->pData) + pDest->SlicePitch * z;
auto pSrcSlice = (static_cast<const BYTE*>(pResourceData) + pSrc->Offset) + pSrc->DepthPitch * ULONG_PTR(z);
for (UINT y = 0; y < NumRows; ++y)
{
memcpy(pDestSlice + pDest->RowPitch * y,
pSrcSlice + pSrc->RowPitch * ULONG_PTR(y),
RowSizeInBytes);
}
}
}
//------------------------------------------------------------------------------------------------
// Returns required size of a buffer to be used for data upload
inline UINT64 GetRequiredIntermediateSize(
_In_ ID3D12Resource* pDestinationResource,
_In_range_(0,D3D12_REQ_SUBRESOURCES) UINT FirstSubresource,
_In_range_(0,D3D12_REQ_SUBRESOURCES-FirstSubresource) UINT NumSubresources) noexcept
{
#if defined(_MSC_VER) || !defined(_WIN32)
const auto Desc = pDestinationResource->GetDesc();
#else
D3D12_RESOURCE_DESC tmpDesc;
const auto& Desc = *pDestinationResource->GetDesc(&tmpDesc);
#endif
UINT64 RequiredSize = 0;
ID3D12Device* pDevice = nullptr;
pDestinationResource->GetDevice(IID_ID3D12Device, reinterpret_cast<void**>(&pDevice));
pDevice->GetCopyableFootprints(&Desc, FirstSubresource, NumSubresources, 0, nullptr, nullptr, nullptr, &RequiredSize);
pDevice->Release();
return RequiredSize;
}
//------------------------------------------------------------------------------------------------
// All arrays must be populated (e.g. by calling GetCopyableFootprints)
inline UINT64 UpdateSubresources(
_In_ ID3D12GraphicsCommandList* pCmdList,
_In_ ID3D12Resource* pDestinationResource,
_In_ ID3D12Resource* pIntermediate,
_In_range_(0,D3D12_REQ_SUBRESOURCES) UINT FirstSubresource,
_In_range_(0,D3D12_REQ_SUBRESOURCES-FirstSubresource) UINT NumSubresources,
UINT64 RequiredSize,
_In_reads_(NumSubresources) const D3D12_PLACED_SUBRESOURCE_FOOTPRINT* pLayouts,
_In_reads_(NumSubresources) const UINT* pNumRows,
_In_reads_(NumSubresources) const UINT64* pRowSizesInBytes,
_In_reads_(NumSubresources) const D3D12_SUBRESOURCE_DATA* pSrcData) noexcept
{
// Minor validation
#if defined(_MSC_VER) || !defined(_WIN32)
const auto IntermediateDesc = pIntermediate->GetDesc();
const auto DestinationDesc = pDestinationResource->GetDesc();
#else
D3D12_RESOURCE_DESC tmpDesc1, tmpDesc2;
const auto& IntermediateDesc = *pIntermediate->GetDesc(&tmpDesc1);
const auto& DestinationDesc = *pDestinationResource->GetDesc(&tmpDesc2);
#endif
if (IntermediateDesc.Dimension != D3D12_RESOURCE_DIMENSION_BUFFER ||
IntermediateDesc.Width < RequiredSize + pLayouts[0].Offset ||
RequiredSize > SIZE_T(-1) ||
(DestinationDesc.Dimension == D3D12_RESOURCE_DIMENSION_BUFFER &&
(FirstSubresource != 0 || NumSubresources != 1)))
{
return 0;
}
BYTE* pData;
HRESULT hr = pIntermediate->Map(0, nullptr, reinterpret_cast<void**>(&pData));
if (FAILED(hr))
{
return 0;
}
for (UINT i = 0; i < NumSubresources; ++i)
{
if (pRowSizesInBytes[i] > SIZE_T(-1)) return 0;
D3D12_MEMCPY_DEST DestData = { pData + pLayouts[i].Offset, pLayouts[i].Footprint.RowPitch, SIZE_T(pLayouts[i].Footprint.RowPitch) * SIZE_T(pNumRows[i]) };
MemcpySubresource(&DestData, &pSrcData[i], static_cast<SIZE_T>(pRowSizesInBytes[i]), pNumRows[i], pLayouts[i].Footprint.Depth);
}
pIntermediate->Unmap(0, nullptr);
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)
{
const CD3DX12_TEXTURE_COPY_LOCATION Dst(pDestinationResource, i + FirstSubresource);
const CD3DX12_TEXTURE_COPY_LOCATION Src(pIntermediate, pLayouts[i]);
pCmdList->CopyTextureRegion(&Dst, 0, 0, 0, &Src, nullptr);
}
}
return RequiredSize;
}
//------------------------------------------------------------------------------------------------
// All arrays must be populated (e.g. by calling GetCopyableFootprints)
inline UINT64 UpdateSubresources(
_In_ ID3D12GraphicsCommandList* pCmdList,
_In_ ID3D12Resource* pDestinationResource,
_In_ ID3D12Resource* pIntermediate,
_In_range_(0,D3D12_REQ_SUBRESOURCES) UINT FirstSubresource,
_In_range_(0,D3D12_REQ_SUBRESOURCES-FirstSubresource) UINT NumSubresources,
UINT64 RequiredSize,
_In_reads_(NumSubresources) const D3D12_PLACED_SUBRESOURCE_FOOTPRINT* pLayouts,
_In_reads_(NumSubresources) const UINT* pNumRows,
_In_reads_(NumSubresources) const UINT64* pRowSizesInBytes,
_In_ const void* pResourceData,
_In_reads_(NumSubresources) const D3D12_SUBRESOURCE_INFO* pSrcData) noexcept
{
// Minor validation
#if defined(_MSC_VER) || !defined(_WIN32)
const auto IntermediateDesc = pIntermediate->GetDesc();
const auto DestinationDesc = pDestinationResource->GetDesc();
#else
D3D12_RESOURCE_DESC tmpDesc1, tmpDesc2;
const auto& IntermediateDesc = *pIntermediate->GetDesc(&tmpDesc1);
const auto& DestinationDesc = *pDestinationResource->GetDesc(&tmpDesc2);
#endif
if (IntermediateDesc.Dimension != D3D12_RESOURCE_DIMENSION_BUFFER ||
IntermediateDesc.Width < RequiredSize + pLayouts[0].Offset ||
RequiredSize > SIZE_T(-1) ||
(DestinationDesc.Dimension == D3D12_RESOURCE_DIMENSION_BUFFER &&
(FirstSubresource != 0 || NumSubresources != 1)))
{
return 0;
}
BYTE* pData;
HRESULT hr = pIntermediate->Map(0, nullptr, reinterpret_cast<void**>(&pData));
if (FAILED(hr))
{
return 0;
}
for (UINT i = 0; i < NumSubresources; ++i)
{
if (pRowSizesInBytes[i] > SIZE_T(-1)) return 0;
D3D12_MEMCPY_DEST DestData = { pData + pLayouts[i].Offset, pLayouts[i].Footprint.RowPitch, SIZE_T(pLayouts[i].Footprint.RowPitch) * SIZE_T(pNumRows[i]) };
MemcpySubresource(&DestData, pResourceData, &pSrcData[i], static_cast<SIZE_T>(pRowSizesInBytes[i]), pNumRows[i], pLayouts[i].Footprint.Depth);
}
pIntermediate->Unmap(0, nullptr);
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)
{
const CD3DX12_TEXTURE_COPY_LOCATION Dst(pDestinationResource, i + FirstSubresource);
const CD3DX12_TEXTURE_COPY_LOCATION Src(pIntermediate, pLayouts[i]);
pCmdList->CopyTextureRegion(&Dst, 0, 0, 0, &Src, nullptr);
}
}
return RequiredSize;
}
//------------------------------------------------------------------------------------------------
// Heap-allocating UpdateSubresources implementation
inline UINT64 UpdateSubresources(
_In_ ID3D12GraphicsCommandList* pCmdList,
_In_ ID3D12Resource* pDestinationResource,
_In_ ID3D12Resource* pIntermediate,
UINT64 IntermediateOffset,
_In_range_(0,D3D12_REQ_SUBRESOURCES) UINT FirstSubresource,
_In_range_(0,D3D12_REQ_SUBRESOURCES-FirstSubresource) UINT NumSubresources,
_In_reads_(NumSubresources) const D3D12_SUBRESOURCE_DATA* pSrcData) noexcept
{
UINT64 RequiredSize = 0;
const auto MemToAlloc = static_cast<UINT64>(sizeof(D3D12_PLACED_SUBRESOURCE_FOOTPRINT) + sizeof(UINT) + sizeof(UINT64)) * NumSubresources;
if (MemToAlloc > SIZE_MAX)
{
return 0;
}
void* pMem = HeapAlloc(GetProcessHeap(), 0, static_cast<SIZE_T>(MemToAlloc));
if (pMem == nullptr)
{
return 0;
}
auto pLayouts = static_cast<D3D12_PLACED_SUBRESOURCE_FOOTPRINT*>(pMem);
auto pRowSizesInBytes = reinterpret_cast<UINT64*>(pLayouts + NumSubresources);
auto pNumRows = reinterpret_cast<UINT*>(pRowSizesInBytes + NumSubresources);
#if defined(_MSC_VER) || !defined(_WIN32)
const auto Desc = pDestinationResource->GetDesc();
#else
D3D12_RESOURCE_DESC tmpDesc;
const auto& Desc = *pDestinationResource->GetDesc(&tmpDesc);
#endif
ID3D12Device* pDevice = nullptr;
pDestinationResource->GetDevice(IID_ID3D12Device, reinterpret_cast<void**>(&pDevice));
pDevice->GetCopyableFootprints(&Desc, FirstSubresource, NumSubresources, IntermediateOffset, pLayouts, pNumRows, pRowSizesInBytes, &RequiredSize);
pDevice->Release();
const UINT64 Result = UpdateSubresources(pCmdList, pDestinationResource, pIntermediate, FirstSubresource, NumSubresources, RequiredSize, pLayouts, pNumRows, pRowSizesInBytes, pSrcData);
HeapFree(GetProcessHeap(), 0, pMem);
return Result;
}
//------------------------------------------------------------------------------------------------
// Heap-allocating UpdateSubresources implementation
inline UINT64 UpdateSubresources(
_In_ ID3D12GraphicsCommandList* pCmdList,
_In_ ID3D12Resource* pDestinationResource,
_In_ ID3D12Resource* pIntermediate,
UINT64 IntermediateOffset,
_In_range_(0,D3D12_REQ_SUBRESOURCES) UINT FirstSubresource,
_In_range_(0,D3D12_REQ_SUBRESOURCES-FirstSubresource) UINT NumSubresources,
_In_ const void* pResourceData,
_In_reads_(NumSubresources) const D3D12_SUBRESOURCE_INFO* pSrcData) noexcept
{
UINT64 RequiredSize = 0;
const auto MemToAlloc = static_cast<UINT64>(sizeof(D3D12_PLACED_SUBRESOURCE_FOOTPRINT) + sizeof(UINT) + sizeof(UINT64)) * NumSubresources;
if (MemToAlloc > SIZE_MAX)
{
return 0;
}
void* pMem = HeapAlloc(GetProcessHeap(), 0, static_cast<SIZE_T>(MemToAlloc));
if (pMem == nullptr)
{
return 0;
}
auto pLayouts = static_cast<D3D12_PLACED_SUBRESOURCE_FOOTPRINT*>(pMem);
auto pRowSizesInBytes = reinterpret_cast<UINT64*>(pLayouts + NumSubresources);
auto pNumRows = reinterpret_cast<UINT*>(pRowSizesInBytes + NumSubresources);
#if defined(_MSC_VER) || !defined(_WIN32)
const auto Desc = pDestinationResource->GetDesc();
#else
D3D12_RESOURCE_DESC tmpDesc;
const auto& Desc = *pDestinationResource->GetDesc(&tmpDesc);
#endif
ID3D12Device* pDevice = nullptr;
pDestinationResource->GetDevice(IID_ID3D12Device, reinterpret_cast<void**>(&pDevice));
pDevice->GetCopyableFootprints(&Desc, FirstSubresource, NumSubresources, IntermediateOffset, pLayouts, pNumRows, pRowSizesInBytes, &RequiredSize);
pDevice->Release();
const UINT64 Result = UpdateSubresources(pCmdList, pDestinationResource, pIntermediate, FirstSubresource, NumSubresources, RequiredSize, pLayouts, pNumRows, pRowSizesInBytes, pResourceData, pSrcData);
HeapFree(GetProcessHeap(), 0, pMem);
return Result;
}
//------------------------------------------------------------------------------------------------
// Stack-allocating UpdateSubresources implementation
template <UINT MaxSubresources>
inline UINT64 UpdateSubresources(
_In_ ID3D12GraphicsCommandList* pCmdList,
_In_ ID3D12Resource* pDestinationResource,
_In_ ID3D12Resource* pIntermediate,
UINT64 IntermediateOffset,
_In_range_(0,MaxSubresources) UINT FirstSubresource,
_In_range_(1,MaxSubresources-FirstSubresource) UINT NumSubresources,
_In_reads_(NumSubresources) const D3D12_SUBRESOURCE_DATA* pSrcData) noexcept
{
UINT64 RequiredSize = 0;
D3D12_PLACED_SUBRESOURCE_FOOTPRINT Layouts[MaxSubresources];
UINT NumRows[MaxSubresources];
UINT64 RowSizesInBytes[MaxSubresources];
#if defined(_MSC_VER) || !defined(_WIN32)
const auto Desc = pDestinationResource->GetDesc();
#else
D3D12_RESOURCE_DESC tmpDesc;
const auto& Desc = *pDestinationResource->GetDesc(&tmpDesc);
#endif
ID3D12Device* pDevice = nullptr;
pDestinationResource->GetDevice(IID_ID3D12Device, reinterpret_cast<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, pSrcData);
}
//------------------------------------------------------------------------------------------------
// Stack-allocating UpdateSubresources implementation
template <UINT MaxSubresources>
inline UINT64 UpdateSubresources(
_In_ ID3D12GraphicsCommandList* pCmdList,
_In_ ID3D12Resource* pDestinationResource,
_In_ ID3D12Resource* pIntermediate,
UINT64 IntermediateOffset,
_In_range_(0,MaxSubresources) UINT FirstSubresource,
_In_range_(1,MaxSubresources-FirstSubresource) UINT NumSubresources,
_In_ const void* pResourceData,
_In_reads_(NumSubresources) const D3D12_SUBRESOURCE_INFO* pSrcData) noexcept
{
UINT64 RequiredSize = 0;
D3D12_PLACED_SUBRESOURCE_FOOTPRINT Layouts[MaxSubresources];
UINT NumRows[MaxSubresources];
UINT64 RowSizesInBytes[MaxSubresources];
#if defined(_MSC_VER) || !defined(_WIN32)
const auto Desc = pDestinationResource->GetDesc();
#else
D3D12_RESOURCE_DESC tmpDesc;
const auto& Desc = *pDestinationResource->GetDesc(&tmpDesc);
#endif
ID3D12Device* pDevice = nullptr;
pDestinationResource->GetDevice(IID_ID3D12Device, reinterpret_cast<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);
}
//------------------------------------------------------------------------------------------------
constexpr bool D3D12IsLayoutOpaque( D3D12_TEXTURE_LAYOUT Layout ) noexcept
{ return Layout == D3D12_TEXTURE_LAYOUT_UNKNOWN || Layout == D3D12_TEXTURE_LAYOUT_64KB_UNDEFINED_SWIZZLE; }
//------------------------------------------------------------------------------------------------
template< typename T >
inline T D3DX12Align(T uValue, T uAlign)
{
// Assert power of 2 alignment
D3DX12_ASSERT(0 == (uAlign & (uAlign - 1)));
T uMask = uAlign - 1;
T uResult = (uValue + uMask) & ~uMask;
D3DX12_ASSERT(uResult >= uValue);
D3DX12_ASSERT(0 == (uResult % uAlign));
return uResult;
}
//------------------------------------------------------------------------------------------------
template< typename T >
inline T D3DX12AlignAtLeast(T uValue, T uAlign)
{
T aligned = D3DX12Align(uValue, uAlign);
return aligned > uAlign ? aligned : uAlign;
}
inline const CD3DX12_RESOURCE_DESC1* D3DX12ConditionallyExpandAPIDesc(
D3D12_RESOURCE_DESC1& LclDesc,
const D3D12_RESOURCE_DESC1* pDesc)
{
return D3DX12ConditionallyExpandAPIDesc(static_cast<CD3DX12_RESOURCE_DESC1&>(LclDesc), static_cast<const CD3DX12_RESOURCE_DESC1*>(pDesc));
}
#if defined(D3D12_SDK_VERSION) && (D3D12_SDK_VERSION >= 606)
//------------------------------------------------------------------------------------------------
// The difference between D3DX12GetCopyableFootprints and ID3D12Device::GetCopyableFootprints
// is that this one loses a lot of error checking by assuming the arguments are correct
inline bool D3DX12GetCopyableFootprints(
_In_ const D3D12_RESOURCE_DESC1& ResourceDesc,
_In_range_(0, D3D12_REQ_SUBRESOURCES) UINT FirstSubresource,
_In_range_(0, D3D12_REQ_SUBRESOURCES - FirstSubresource) UINT NumSubresources,
UINT64 BaseOffset,
_Out_writes_opt_(NumSubresources) D3D12_PLACED_SUBRESOURCE_FOOTPRINT* pLayouts,
_Out_writes_opt_(NumSubresources) UINT* pNumRows,
_Out_writes_opt_(NumSubresources) UINT64* pRowSizeInBytes,
_Out_opt_ UINT64* pTotalBytes)
{
constexpr UINT64 uint64_max = ~0ull;
UINT64 TotalBytes = uint64_max;
UINT uSubRes = 0;
bool bResourceOverflow = false;
TotalBytes = 0;
const DXGI_FORMAT Format = ResourceDesc.Format;
CD3DX12_RESOURCE_DESC1 LresourceDesc;
const CD3DX12_RESOURCE_DESC1& resourceDesc = *D3DX12ConditionallyExpandAPIDesc(LresourceDesc, &ResourceDesc);
// Check if its a valid format
D3DX12_ASSERT(D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::FormatExists(Format));
const UINT WidthAlignment = D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::GetWidthAlignment( Format );
const UINT HeightAlignment = D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::GetHeightAlignment( Format );
const UINT16 DepthAlignment = UINT16( D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::GetDepthAlignment( Format ) );
for (; uSubRes < NumSubresources; ++uSubRes)
{
bool bOverflow = false;
UINT Subresource = FirstSubresource + uSubRes;
D3DX12_ASSERT(resourceDesc.MipLevels != 0);
UINT subresourceCount = resourceDesc.MipLevels * resourceDesc.ArraySize() * D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::GetPlaneCount(resourceDesc.Format);
if (Subresource > subresourceCount)
{
break;
}
TotalBytes = D3DX12Align< UINT64 >( TotalBytes, D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT );
UINT MipLevel, ArraySlice, PlaneSlice;
D3D12DecomposeSubresource(Subresource, resourceDesc.MipLevels, resourceDesc.ArraySize(), /*_Out_*/MipLevel, /*_Out_*/ArraySlice, /*_Out_*/PlaneSlice);
const UINT64 Width = D3DX12AlignAtLeast<UINT64>(resourceDesc.Width >> MipLevel, WidthAlignment);
const UINT Height = D3DX12AlignAtLeast(resourceDesc.Height >> MipLevel, HeightAlignment);
const UINT16 Depth = D3DX12AlignAtLeast<UINT16>(resourceDesc.Depth() >> MipLevel, DepthAlignment);
// Adjust for the current PlaneSlice. Most formats have only one plane.
DXGI_FORMAT PlaneFormat;
UINT32 MinPlanePitchWidth, PlaneWidth, PlaneHeight;
D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::GetPlaneSubsampledSizeAndFormatForCopyableLayout(PlaneSlice, Format, (UINT)Width, Height, /*_Out_*/ PlaneFormat, /*_Out_*/ MinPlanePitchWidth, /* _Out_ */ PlaneWidth, /*_Out_*/ PlaneHeight);
D3D12_SUBRESOURCE_FOOTPRINT LocalPlacement;
auto& Placement = pLayouts ? pLayouts[uSubRes].Footprint : LocalPlacement;
Placement.Format = PlaneFormat;
Placement.Width = PlaneWidth;
Placement.Height = PlaneHeight;
Placement.Depth = Depth;
// Calculate row pitch
UINT MinPlaneRowPitch = 0;
D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::CalculateMinimumRowMajorRowPitch(PlaneFormat, MinPlanePitchWidth, MinPlaneRowPitch);
// Formats with more than one plane choose a larger pitch alignment to ensure that each plane begins on the row
// immediately following the previous plane while still adhering to subresource alignment restrictions.
static_assert( D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT >= D3D12_TEXTURE_DATA_PITCH_ALIGNMENT
&& ((D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT % D3D12_TEXTURE_DATA_PITCH_ALIGNMENT) == 0),
"D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT must be >= and evenly divisible by D3D12_TEXTURE_DATA_PITCH_ALIGNMENT." );
Placement.RowPitch = D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::Planar(Format)
? D3DX12Align< UINT >( MinPlaneRowPitch, D3D12_TEXTURE_DATA_PLACEMENT_ALIGNMENT )
: D3DX12Align< UINT >( MinPlaneRowPitch, D3D12_TEXTURE_DATA_PITCH_ALIGNMENT );
if (pRowSizeInBytes)
{
UINT PlaneRowSize = 0;
D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::CalculateMinimumRowMajorRowPitch(PlaneFormat, PlaneWidth, PlaneRowSize);
pRowSizeInBytes[uSubRes] = PlaneRowSize;
}
// Number of rows (accounting for block compression and additional planes)
UINT NumRows = 0;
if (D3D12_PROPERTY_LAYOUT_FORMAT_TABLE::Planar(Format))
{
NumRows = PlaneHeight;
}
else
{
D3DX12_ASSERT(Height % HeightAlignment == 0);
NumRows = Height / HeightAlignment;
}
if (pNumRows)
{
pNumRows[uSubRes] = NumRows;
}
// Offsetting
if (pLayouts)
{
pLayouts[uSubRes].Offset = (bOverflow ? uint64_max : TotalBytes + BaseOffset);
}
const UINT16 NumSlices = Depth;
const UINT64 SubresourceSize = (NumRows * NumSlices - 1) * Placement.RowPitch + MinPlaneRowPitch;
// uint64 addition with overflow checking
TotalBytes = TotalBytes + SubresourceSize;
if(TotalBytes < SubresourceSize)
{
TotalBytes = uint64_max;
}
bResourceOverflow = bResourceOverflow || bOverflow;
}
// Overflow error
if (bResourceOverflow)
{
TotalBytes = uint64_max;
}
if (pLayouts)
{
memset( pLayouts + uSubRes, -1, sizeof( *pLayouts ) * (NumSubresources - uSubRes) );
}
if (pNumRows)
{
memset(pNumRows + uSubRes, -1, sizeof(*pNumRows) * (NumSubresources - uSubRes));
}
if (pRowSizeInBytes)
{
memset(pRowSizeInBytes + uSubRes, -1, sizeof(*pRowSizeInBytes) * (NumSubresources - uSubRes));
}
if (pTotalBytes)
{
*pTotalBytes = TotalBytes;
}
if(TotalBytes == uint64_max)
{
return false;
}
return true;
}
//------------------------------------------------------------------------------------------------
inline D3D12_RESOURCE_DESC1 D3DX12ResourceDesc0ToDesc1(D3D12_RESOURCE_DESC const& desc0)
{
D3D12_RESOURCE_DESC1 desc1;
desc1.Dimension = desc0.Dimension;
desc1.Alignment = desc0.Alignment;
desc1.Width = desc0.Width;
desc1.Height = desc0.Height;
desc1.DepthOrArraySize = desc0.DepthOrArraySize;
desc1.MipLevels = desc0.MipLevels;
desc1.Format = desc0.Format;
desc1.SampleDesc.Count = desc0.SampleDesc.Count;
desc1.SampleDesc.Quality = desc0.SampleDesc.Quality;
desc1.Layout = desc0.Layout;
desc1.Flags = desc0.Flags;
desc1.SamplerFeedbackMipRegion.Width = 0;
desc1.SamplerFeedbackMipRegion.Height = 0;
desc1.SamplerFeedbackMipRegion.Depth = 0;
return desc1;
}
//------------------------------------------------------------------------------------------------
inline bool D3DX12GetCopyableFootprints(
_In_ const D3D12_RESOURCE_DESC& pResourceDesc,
_In_range_(0, D3D12_REQ_SUBRESOURCES) UINT FirstSubresource,
_In_range_(0, D3D12_REQ_SUBRESOURCES - FirstSubresource) UINT NumSubresources,
UINT64 BaseOffset,
_Out_writes_opt_(NumSubresources) D3D12_PLACED_SUBRESOURCE_FOOTPRINT* pLayouts,
_Out_writes_opt_(NumSubresources) UINT* pNumRows,
_Out_writes_opt_(NumSubresources) UINT64* pRowSizeInBytes,
_Out_opt_ UINT64* pTotalBytes)
{
// From D3D12_RESOURCE_DESC to D3D12_RESOURCE_DESC1
D3D12_RESOURCE_DESC1 desc = D3DX12ResourceDesc0ToDesc1(pResourceDesc);
return D3DX12GetCopyableFootprints(
*static_cast<CD3DX12_RESOURCE_DESC1*>(&desc),// From D3D12_RESOURCE_DESC1 to CD3DX12_RESOURCE_DESC1
FirstSubresource,
NumSubresources,
BaseOffset,
pLayouts,
pNumRows,
pRowSizeInBytes,
pTotalBytes);
}
#endif // D3D12_SDK_VERSION >= 606
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