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https://github.com/gnif/LookingGlass.git
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91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
#include "CFrameBufferResource.h"
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#include "CSwapChainProcessor.h"
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#include "CDebug.h"
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bool CFrameBufferResource::Init(CSwapChainProcessor * swapChain, uint8_t * base, size_t size)
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{
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if (size > swapChain->GetDevice()->GetMaxFrameSize())
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{
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DEBUG_ERROR("Frame size of %lu is too large to fit in available shared ram");
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return false;
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}
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// nothing to do if the resource already exists and is large enough
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if (m_base == base && m_size >= size)
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return true;
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Reset();
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D3D12_RESOURCE_DESC desc = {};
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desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
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desc.Width = size;
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desc.Height = 1;
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desc.DepthOrArraySize = 1;
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desc.MipLevels = 1;
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desc.Format = DXGI_FORMAT_UNKNOWN;
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desc.SampleDesc.Count = 1;
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desc.SampleDesc.Quality = 0;
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desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
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desc.Flags = D3D12_RESOURCE_FLAG_NONE;
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HRESULT hr;
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const WCHAR * resName;
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if (swapChain->GetD3D12Device()->IsIndirectCopy())
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{
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DEBUG_TRACE("Creating standard resource for %p", base);
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D3D12_HEAP_PROPERTIES heapProps = {};
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heapProps.Type = D3D12_HEAP_TYPE_READBACK;
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heapProps.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
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heapProps.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
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heapProps.CreationNodeMask = 1;
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heapProps.VisibleNodeMask = 1;
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hr = swapChain->GetD3D12Device()->GetDevice()->CreateCommittedResource(
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&heapProps,
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D3D12_HEAP_FLAG_NONE,
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&desc,
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D3D12_RESOURCE_STATE_COPY_DEST,
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NULL,
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IID_PPV_ARGS(&m_res)
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);
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resName = L"STAGING";
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}
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else
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{
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DEBUG_TRACE("Creating ivshmem resource for %p", base);
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desc.Alignment = D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT;
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desc.Flags = D3D12_RESOURCE_FLAG_ALLOW_CROSS_ADAPTER;
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hr = swapChain->GetD3D12Device()->GetDevice()->CreatePlacedResource(
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swapChain->GetD3D12Device()->GetHeap().Get(),
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(uintptr_t)base - (uintptr_t)swapChain->GetDevice()->GetIVSHMEM().GetMem(),
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&desc,
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D3D12_RESOURCE_STATE_COPY_DEST,
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NULL,
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IID_PPV_ARGS(&m_res)
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);
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resName = L"IVSHMEM";
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}
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if (FAILED(hr))
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{
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DEBUG_ERROR_HR(hr, "Failed to create the FrameBuffer ID3D12Resource");
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return false;
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}
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m_res->SetName(resName);
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m_base = base;
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m_size = size;
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m_valid = true;
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return true;
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}
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void CFrameBufferResource::Reset()
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{
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m_base = nullptr;
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m_size = 0;
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m_res.Reset();
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m_valid = false;
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} |