# D3D12CommandList

**命名空间**: `XCEngine::RHI`

**类型**: `class`

**头文件**: `XCEngine/RHI/D3D12/D3D12CommandList.h`

**描述**: DirectX 12 命令列表封装类，负责录制图形和计算命令

## 概述

D3D12CommandList 是 DirectX 12 命令列表的封装类，继承自 RHICommandList 接口。它负责录制所有图形渲染命令，包括状态设置、绘制调用、资源状态转换、复制操作等。D3D12CommandList 支持命令列表重置和关闭以实现命令重用，内部维护资源状态跟踪以优化状态转换屏障。

该类是渲染管线的核心，负责将所有渲染操作命令化并提交到 GPU 执行。

## 公共方法

| 方法 | 描述 |
|------|------|
| `D3D12CommandList()` | 默认构造函数 |
| `~D3D12CommandList()` | 虚析构函数 |
| [Initialize](d3d12-command-list-initialize.md) | 初始化命令列表 |
| [Shutdown](d3d12-command-list-shutdown.md) | 关闭命令列表 |
| [Reset](d3d12-command-list-reset.md) | 重置命令列表 |
| [Close](d3d12-command-list-close.md) | 关闭命令列表 |
| [GetCommandList](d3d12-command-list-get-command-list.md) | 获取底层命令列表指针 |
| [TransitionBarrier](d3d12-command-list-transition-barrier.md) | 设置资源转换屏障 |
| [UAVBarrier](d3d12-command-list-uav-barrier.md) | 设置 UAV 屏障 |
| [AliasBarrier](d3d12-command-list-alias-barrier.md) | 设置别名屏障 |
| [SetPipelineState](d3d12-command-list-set-pipeline-state.md) | 设置管道状态 |
| [SetViewport](d3d12-command-list-set-viewport.md) | 设置视口 |
| [SetViewports](d3d12-command-list-set-viewports.md) | 设置多个视口 |
| [SetScissorRect](d3d12-command-list-set-scissor-rect.md) | 设置裁剪矩形 |
| [SetScissorRects](d3d12-command-list-set-scissor-rects.md) | 设置多个裁剪矩形 |
| [SetPrimitiveTopology](d3d12-command-list-set-primitive-topology.md) | 设置图元拓扑 |
| [SetRenderTargets](d3d12-command-list-set-render-targets.md) | 设置渲染目标 |
| [SetVertexBuffer](d3d12-command-list-set-vertex-buffer.md) | 设置顶点缓冲区 |
| [SetVertexBuffers](d3d12-command-list-set-vertex-buffers.md) | 设置多个顶点缓冲区 |
| [SetIndexBuffer](d3d12-command-list-set-index-buffer.md) | 设置索引缓冲区 |
| [SetStencilRef](d3d12-command-list-set-stencil-ref.md) | 设置模板参考值 |
| [SetDepthStencilState](d3d12-command-list-set-depth-stencil-state.md) | 设置深度模板状态 |
| [SetBlendState](d3d12-command-list-set-blend-state.md) | 设置混合状态 |
| [SetBlendFactor](d3d12-command-list-set-blend-factor.md) | 设置混合因子 |
| [SetDepthBias](d3d12-command-list-set-depth-bias.md) | 设置深度偏移 |
| [Draw](d3d12-command-list-draw.md) | 绘制调用 |
| [DrawIndexed](d3d12-command-list-draw-indexed.md) | 绘制索引图元 |
| [DrawInstancedIndirect](d3d12-command-list-draw-instanced-indirect.md) | 间接实例绘制 |
| [DrawIndexedInstancedIndirect](d3d12-command-list-draw-indexed-instanced-indirect.md) | 间接索引实例绘制 |
| [Clear](d3d12-command-list-clear.md) | 清除缓冲区 |
| [ClearRenderTarget](d3d12-command-list-clear-render-target.md) | 清除渲染目标 |
| [ClearDepthStencil](d3d12-command-list-clear-depth-stencil.md) | 清除深度模板 |
| [CopyResource](d3d12-command-list-copy-resource.md) | 复制资源 |
| [CopyBuffer](d3d12-command-list-copy-buffer.md) | 复制缓冲区 |
| [CopyTexture](d3d12-command-list-copy-texture.md) | 复制纹理 |
| [BeginQuery](d3d12-command-list-begin-query.md) | 开始查询 |
| [EndQuery](d3d12-command-list-end-query.md) | 结束查询 |
| [ResolveQueryData](d3d12-command-list-resolve-query-data.md) | 解析查询数据 |
| [Dispatch](d3d12-command-list-dispatch.md) | 分发计算任务 |
| [DispatchIndirect](d3d12-command-list-dispatch-indirect.md) | 间接分发计算任务 |
| [ExecuteBundle](d3d12-command-list-execute-bundle.md) | 执行命令束 |

## 使用示例

```cpp
#include <XCEngine/RHI/D3D12/D3D12CommandList.h>

using namespace XCEngine::RHI;

// 创建命令列表
D3D12CommandList commandList;
commandList.Initialize(device, CommandQueueType::Direct);

// 开始录制命令
commandList.Reset();

// 设置渲染目标
commandList.SetRenderTargets(1, &renderTargetView, nullptr);
float clearColor[] = { 0.0f, 0.0f, 0.0f, 1.0f };
commandList.ClearRenderTarget(renderTargetView, clearColor);

// 设置视口
Viewport viewport = { 0.0f, 0.0f, 1280.0f, 720.0f, 0.0f, 1.0f };
commandList.SetViewport(viewport);

// 设置图元拓扑
commandList.SetPrimitiveTopology(PrimitiveTopology::TriangleList);

// 绑定顶点缓冲区
commandList.SetVertexBuffer(0, vertexBuffer, 0, sizeof(Vertex));

// 绑定索引缓冲区
commandList.SetIndexBuffer(indexBuffer, 0, Format::R32_UInt);

// 绑定管道状态
commandList.SetPipelineState(pipelineState);

// 绘制
commandList.DrawIndexed(indexCount, 1, 0, 0, 0);

// 关闭命令列表
commandList.Close();

// 提交到命令队列
commandQueue->ExecuteCommandListsInternal(1, &cmdList);
```

## 相关文档

- [D3D12 模块概览](d3d12.md) - D3D12 模块总览
- [RHICommandList](../rhi-command-list.md) - RHI 命令列表基类
- [D3D12CommandQueue](d3d12-command-queue.md) - 命令队列