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ID3D12PipelineState 介面 (d3d12.h)

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代表所有目前設定著色器的狀態，以及特定的固定函式狀態物件。

繼承

ID3D12PipelineState介面繼承自ID3D12Pageable。 ID3D12PipelineState 也有下列類型的成員：

方法

ID3D12PipelineState介面具有這些方法。

 
ID3D12PipelineState：：GetCachedBlob

取得代表管線狀態的快取 Blob。

備註

使用 ID3D12Device：：CreateGraphicsPipelineState 或 ID3D12Device：：CreateComputePipelineState 建立管線狀態物件 (PSO) 。

管線狀態物件會對應至圖形處理單位 (GPU) 狀態的重要部分。 此狀態包括所有目前設定的著色器和特定固定函式狀態物件。 變更管線物件內所含狀態的唯一方式是變更目前系結的管線物件。

範例

D3D12DynamicIndexing範例使用ID3D12PipelineState，如下所示：

宣告管線物件。

// Asset objects.
ComPtr<ID3D12PipelineState> m_pipelineState;
ComPtr<ID3D12PipelineState> m_computeState;
ComPtr<ID3D12GraphicsCommandList> m_commandList;
ComPtr<ID3D12Resource> m_vertexBuffer;
ComPtr<ID3D12Resource> m_vertexBufferUpload;
D3D12_VERTEX_BUFFER_VIEW m_vertexBufferView;
ComPtr<ID3D12Resource> m_particleBuffer0[ThreadCount];
ComPtr<ID3D12Resource> m_particleBuffer1[ThreadCount];
ComPtr<ID3D12Resource> m_particleBuffer0Upload[ThreadCount];
ComPtr<ID3D12Resource> m_particleBuffer1Upload[ThreadCount];
ComPtr<ID3D12Resource> m_constantBufferGS;
UINT8* m_pConstantBufferGSData;
ComPtr<ID3D12Resource> m_constantBufferCS;

初始化套件組合。

void FrameResource::InitBundle(ID3D12Device* pDevice, ID3D12PipelineState* pPso,
    UINT frameResourceIndex, UINT numIndices, D3D12_INDEX_BUFFER_VIEW* pIndexBufferViewDesc, D3D12_VERTEX_BUFFER_VIEW* pVertexBufferViewDesc,
    ID3D12DescriptorHeap* pCbvSrvDescriptorHeap, UINT cbvSrvDescriptorSize, ID3D12DescriptorHeap* pSamplerDescriptorHeap, ID3D12RootSignature* pRootSignature)
{
    ThrowIfFailed(pDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_BUNDLE, m_bundleAllocator.Get(), pPso, IID_PPV_ARGS(&m_bundle)));

    PopulateCommandList(m_bundle.Get(), pPso, frameResourceIndex, numIndices, pIndexBufferViewDesc,
        pVertexBufferViewDesc, pCbvSrvDescriptorHeap, cbvSrvDescriptorSize, pSamplerDescriptorHeap, pRootSignature);

    ThrowIfFailed(m_bundle->Close());
}

D3D12Bundles範例使用ID3D12PipelineState，如下所示：

填入命令清單，請注意替代的 PSO。

void FrameResource::PopulateCommandList(ID3D12GraphicsCommandList* pCommandList, ID3D12PipelineState* pPso1, ID3D12PipelineState* pPso2,
    UINT frameResourceIndex, UINT numIndices, D3D12_INDEX_BUFFER_VIEW* pIndexBufferViewDesc, D3D12_VERTEX_BUFFER_VIEW* pVertexBufferViewDesc,
    ID3D12DescriptorHeap* pCbvSrvDescriptorHeap, UINT cbvSrvDescriptorSize, ID3D12DescriptorHeap* pSamplerDescriptorHeap, ID3D12RootSignature* pRootSignature)
{
    // If the root signature matches the root signature of the caller, then
    // bindings are inherited, otherwise the bind space is reset.
    pCommandList->SetGraphicsRootSignature(pRootSignature);

    ID3D12DescriptorHeap* ppHeaps[] = { pCbvSrvDescriptorHeap, pSamplerDescriptorHeap };
    pCommandList->SetDescriptorHeaps(_countof(ppHeaps), ppHeaps);
    pCommandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);

    pCommandList->IASetIndexBuffer(pIndexBufferViewDesc);

    pCommandList->IASetVertexBuffers(0, 1, pVertexBufferViewDesc);

    pCommandList->SetGraphicsRootDescriptorTable(0, pCbvSrvDescriptorHeap->GetGPUDescriptorHandleForHeapStart());
    pCommandList->SetGraphicsRootDescriptorTable(1, pSamplerDescriptorHeap->GetGPUDescriptorHandleForHeapStart());

    // Calculate the descriptor offset due to multiple frame resources.
    // 1 SRV + how many CBVs we have currently.
    UINT frameResourceDescriptorOffset = 1 + (frameResourceIndex * m_cityRowCount * m_cityColumnCount);
    CD3DX12_GPU_DESCRIPTOR_HANDLE cbvSrvHandle(pCbvSrvDescriptorHeap->GetGPUDescriptorHandleForHeapStart(), frameResourceDescriptorOffset, cbvSrvDescriptorSize);

    BOOL usePso1 = TRUE;
    for (UINT i = 0; i < m_cityRowCount; i++)
    {
        for (UINT j = 0; j < m_cityColumnCount; j++)
        {
            // Alternate which PSO to use; the pixel shader is different on 
            // each just as a PSO setting demonstration.
            pCommandList->SetPipelineState(usePso1 ? pPso1 : pPso2);
            usePso1 = !usePso1;

            // Set this city's CBV table and move to the next descriptor.
            pCommandList->SetGraphicsRootDescriptorTable(2, cbvSrvHandle);
            cbvSrvHandle.Offset(cbvSrvDescriptorSize);

            pCommandList->DrawIndexedInstanced(numIndices, 1, 0, 0, 0);
        }
    }
}

請參閱 D3D12 參考中的範例程式碼。

需求

   
目標平台 Windows
標頭 d3d12.h

另請參閱

核心介面

ID3D12Pageable