29 lines
828 B
Markdown
29 lines
828 B
Markdown
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# D3D12Common::GetDescriptorHandleIncrementSize
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```cpp
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inline UINT GetDescriptorHandleIncrementSize(ID3D12Device* device, D3D12_DESCRIPTOR_HEAP_TYPE heapType)
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```
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获取指定描述符堆类型的描述符增量大小（增量偏移值）。
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**参数：**
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- `device` - D3D12 设备指针
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- `heapType` - 描述符堆类型（`D3D12_DESCRIPTOR_HEAP_TYPE`）
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**返回：** 指定类型的描述符增量大小（字节）
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**线程安全：** ✅（只读操作）
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**示例：**
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```cpp
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ID3D12Device* device = ...;
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UINT rtvIncSize = GetDescriptorHandleIncrementSize(device, D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
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UINT srvIncSize = GetDescriptorHandleIncrementSize(device, D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
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```
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## 相关文档
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- [D3D12Common 总览](common.md)
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- [D3D12DescriptorHeap](../descriptor-heap/descriptor-heap.md)
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