ID3D12GraphicsCommandList：：ExecuteBundle 方法 (d3d12.h)

执行捆绑包。

语法

void ExecuteBundle(
  [in] ID3D12GraphicsCommandList *pCommandList
);

参数

[in] pCommandList

类型： ID3D12GraphicsCommandList*

指定要执行的捆绑包的 ID3D12GraphicsCommandList 。

返回值

无

备注

捆绑包从调用 ExecuteBundle 的父命令列表继承所有状态，管道状态对象和基元拓扑除外。 捆绑包中设置的所有状态都将影响父命令列表的状态。 请注意， ExecuteBundle 不是谓词运算。

运行时验证

运行时将验证“被调用方”是否为捆绑包，“调用方”是否为直接命令列表。 运行时还将验证捆绑包是否已关闭。 如果违反协定，运行时将以无提示方式放弃调用。 验证失败将导致 关闭 返回E_INVALIDARG。

调试层

在运行时失败的相同情况下，调试层将发出警告。 如果在调用 ExecuteCommandList 时设置了谓词，则调试层将发出警告。 此外，如果调试层检测到命令列表的任何资源引用已被销毁，则它将发出错误。

调试层还将验证与捆绑包关联的命令分配器是否尚未重置，因为对命令列表调用 Close 。 此验证在 ExecuteBundle 时间以及父命令列表在命令队列上执行时进行。

示例

D3D12Bundles 示例使用 ID3D12GraphicsCommandList：：ExecuteBundle，如下所示：

void D3D12Bundles::PopulateCommandList(FrameResource* pFrameResource)
{
    // Command list allocators can only be reset when the associated
    // command lists have finished execution on the GPU; apps should use
    // fences to determine GPU execution progress.
    ThrowIfFailed(m_pCurrentFrameResource->m_commandAllocator->Reset());

    // However, when ExecuteCommandList() is called on a particular command
    // list, that command list can then be reset at any time and must be before
    // re-recording.
    ThrowIfFailed(m_commandList->Reset(m_pCurrentFrameResource->m_commandAllocator.Get(), m_pipelineState1.Get()));

    // Set necessary state.
    m_commandList->SetGraphicsRootSignature(m_rootSignature.Get());

    ID3D12DescriptorHeap* ppHeaps[] = { m_cbvSrvHeap.Get(), m_samplerHeap.Get() };
    m_commandList->SetDescriptorHeaps(_countof(ppHeaps), ppHeaps);

    m_commandList->RSSetViewports(1, &m_viewport);
    m_commandList->RSSetScissorRects(1, &m_scissorRect);

    // Indicate that the back buffer will be used as a render target.
    m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_renderTargets[m_frameIndex].Get(), D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET));

    CD3DX12_CPU_DESCRIPTOR_HANDLE rtvHandle(m_rtvHeap->GetCPUDescriptorHandleForHeapStart(), m_frameIndex, m_rtvDescriptorSize);
    CD3DX12_CPU_DESCRIPTOR_HANDLE dsvHandle(m_dsvHeap->GetCPUDescriptorHandleForHeapStart());
    m_commandList->OMSetRenderTargets(1, &rtvHandle, FALSE, &dsvHandle);

    // Record commands.
    const float clearColor[] = { 0.0f, 0.2f, 0.4f, 1.0f };
    m_commandList->ClearRenderTargetView(rtvHandle, clearColor, 0, nullptr);
    m_commandList->ClearDepthStencilView(m_dsvHeap->GetCPUDescriptorHandleForHeapStart(), D3D12_CLEAR_FLAG_DEPTH, 1.0f, 0, 0, nullptr);

    if (UseBundles)
    {
        // Execute the prebuilt bundle.
        m_commandList->ExecuteBundle(pFrameResource->m_bundle.Get());
    }
    else
    {
        // Populate a new command list.
        pFrameResource->PopulateCommandList(m_commandList.Get(), m_pipelineState1.Get(), m_pipelineState2.Get(), m_currentFrameResourceIndex, m_numIndices, &m_indexBufferView,
            &m_vertexBufferView, m_cbvSrvHeap.Get(), m_cbvSrvDescriptorSize, m_samplerHeap.Get(), m_rootSignature.Get());
    }

    // Indicate that the back buffer will now be used to present.
    m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_renderTargets[m_frameIndex].Get(), D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT));

    ThrowIfFailed(m_commandList->Close());
}

请参阅 D3D12 参考中的示例代码。

要求

要求	值
目标平台	Windows
标头	d3d12.h
Library	D3d12.lib
DLL	D3d12.dll

另请参阅

ID3D12GraphicsCommandList