ID3D12GraphicsCommandList 接口 (d3d12.h)
封装用于呈现的图形命令的列表。 包括用于检测命令列表执行的 API，以及用于设置和清除管道状态的 API。
注意此接口的最新版本是Windows 10 创意者更新中引入的 ID3D12GraphicsCommandList1。 面向Windows 10 创意者更新的应用程序应使用 ID3D12GraphicsCommandList1 接口，而不是 ID3D12GraphicsCommandList。
继承
ID3D12GraphicsCommandList 接口继承自 ID3D12CommandList。 ID3D12GraphicsCommandList 也包含以下类型的成员：
方法
ID3D12GraphicsCommandList 接口包含以下方法。
注解
此接口是 D3D12 的新增功能，封装 了 ID3D11CommandList 接口的大部分功能，并包括 呈现中所述的新功能。
示例
D3D12nBodyGravity 示例使用 ID3D12GraphicsCommandList，如下所示：
声明管道对象。
D3D12_VIEWPORT m_viewport;
D3D12_RECT m_scissorRect;
ComPtr<IDXGISwapChain3> m_swapChain;
ComPtr<ID3D12Device> m_device;
ComPtr<ID3D12Resource> m_renderTargets[FrameCount];
ComPtr<ID3D12CommandAllocator> m_commandAllocator;
ComPtr<ID3D12CommandQueue> m_commandQueue;
ComPtr<ID3D12RootSignature> m_rootSignature;
ComPtr<ID3D12DescriptorHeap> m_rtvHeap;
ComPtr<ID3D12PipelineState> m_pipelineState;
ComPtr<ID3D12GraphicsCommandList> m_commandList;
UINT m_rtvDescriptorSize;
填充命令列表。
// Fill the command list with all the render commands and dependent state.
void D3D12nBodyGravity::PopulateCommandList()
{
// 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_commandAllocators[m_frameIndex]->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_commandAllocators[m_frameIndex].Get(), m_pipelineState.Get()));
// Set necessary state.
m_commandList->SetPipelineState(m_pipelineState.Get());
m_commandList->SetGraphicsRootSignature(m_rootSignature.Get());
m_commandList->SetGraphicsRootConstantBufferView(RootParameterCB, m_constantBufferGS->GetGPUVirtualAddress() + m_frameIndex * sizeof(ConstantBufferGS));
ID3D12DescriptorHeap* ppHeaps[] = { m_srvUavHeap.Get() };
m_commandList->SetDescriptorHeaps(_countof(ppHeaps), ppHeaps);
m_commandList->IASetVertexBuffers(0, 1, &m_vertexBufferView);
m_commandList->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_POINTLIST);
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);
m_commandList->OMSetRenderTargets(1, &rtvHandle, FALSE, nullptr);
// Record commands.
const float clearColor[] = { 0.0f, 0.0f, 0.1f, 0.0f };
m_commandList->ClearRenderTargetView(rtvHandle, clearColor, 0, nullptr);
// Render the particles.
float viewportHeight = static_cast<float>(static_cast<UINT>(m_viewport.Height) / m_heightInstances);
float viewportWidth = static_cast<float>(static_cast<UINT>(m_viewport.Width) / m_widthInstances);
for (UINT n = 0; n < ThreadCount; n++)
{
const UINT srvIndex = n + (m_srvIndex[n] == 0 ? SrvParticlePosVelo0 : SrvParticlePosVelo1);
D3D12_VIEWPORT viewport;
viewport.TopLeftX = (n % m_widthInstances) * viewportWidth;
viewport.TopLeftY = (n / m_widthInstances) * viewportHeight;
viewport.Width = viewportWidth;
viewport.Height = viewportHeight;
viewport.MinDepth = D3D12_MIN_DEPTH;
viewport.MaxDepth = D3D12_MAX_DEPTH;
m_commandList->RSSetViewports(1, &viewport);
CD3DX12_GPU_DESCRIPTOR_HANDLE srvHandle(m_srvUavHeap->GetGPUDescriptorHandleForHeapStart(), srvIndex, m_srvUavDescriptorSize);
m_commandList->SetGraphicsRootDescriptorTable(RootParameterSRV, srvHandle);
m_commandList->DrawInstanced(ParticleCount, 1, 0, 0);
}
m_commandList->RSSetViewports(1, &m_viewport);
// 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 |