35 lines
889 B
Markdown
35 lines
889 B
Markdown
# RHIDevice::CreateSwapChain
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```cpp
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virtual RHISwapChain* CreateSwapChain(const SwapChainDesc& desc) = 0;
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```
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创建交换链，用于管理窗口渲染和帧缓冲区切换。
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**参数：**
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- `desc` - 交换链描述符，包含尺寸、缓冲数量、格式等
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**返回：** 新创建的交换链指针，失败返回 `nullptr`，OpenGL 后端始终返回有效对象
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**复杂度：** O(1)
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**示例：**
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```cpp
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SwapChainDesc swapChainDesc;
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swapChainDesc.width = 1280;
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swapChainDesc.height = 720;
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swapChainDesc.bufferCount = 2;
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swapChainDesc.format = (uint32_t)Format::R8G8B8A8_UNorm;
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swapChainDesc.refreshRate = 60;
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swapChainDesc.sampleCount = 1;
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swapChainDesc.sampleQuality = 0;
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RHISwapChain* swapChain = device->CreateSwapChain(swapChainDesc);
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```
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## 相关文档
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- [RHIDevice 总览](device.md) - 返回类总览
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- [RHISwapChain](../swap-chain/swap-chain.md) - 交换链类
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