# D3D12CommandList::CopyTexture

```cpp
void CopyTexture(ID3D12Resource* dst, const D3D12_TEXTURE_COPY_LOCATION& dstLocation, ID3D12Resource* src, const D3D12_TEXTURE_COPY_LOCATION& srcLocation);
```

复制纹理。

**参数：**
- `dst` - 目标纹理
- `dstLocation` - 目标位置
- `src` - 源纹理
- `srcLocation` - 源位置

**复杂度：** O(n)，n 为复制数据量

**示例：**

```cpp
D3D12_TEXTURE_COPY_LOCATION dstLoc = {};
dstLoc.pResource = dstTexture;
dstLoc.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
dstLoc.SubresourceIndex = 0;

D3D12_TEXTURE_COPY_LOCATION srcLoc = {};
srcLoc.pResource = srcTexture;
srcLoc.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
srcLoc.SubresourceIndex = 0;

cmdList.CopyTexture(dst, dstLoc, src, srcLoc);
```

## 相关文档

- [D3D12CommandList 总览](command-list.md) - 返回类总览
- [CopyResource](copy-resource.md) - 复制整个资源
- [CopyBuffer](copy-buffer.md) - 复制缓冲区数据