43 lines
1.0 KiB
Markdown
43 lines
1.0 KiB
Markdown
|
# D3D12Texture::InitializeFromData
|
||
|
|
|
||
|
|
## 函数签名
|
||
|
|
|
||
|
|
```cpp
|
||
|
|
bool InitializeFromData(ID3D12Device* device, ID3D12GraphicsCommandList* commandList,
|
||
|
|
const void* pixelData, uint32_t width, uint32_t height, DXGI_FORMAT format)
|
||
|
|
```
|
||
|
|
|
||
|
|
## 中文描述
|
||
|
|
|
||
|
|
从像素数据初始化纹理，内部会创建上传堆并复制数据。
|
||
|
|
|
||
|
|
## 参数
|
||
|
|
|
||
|
|
| 参数 | 类型 | 描述 |
|
||
|
|
|------|------|------|
|
||
|
|
| `device` | `ID3D12Device*` | D3D12 设备指针 |
|
||
|
|
| `commandList` | `ID3D12GraphicsCommandList*` | 命令列表指针 |
|
||
|
|
| `pixelData` | `const void*` | 像素数据指针 |
|
||
|
|
| `width` | `uint32_t` | 纹理宽度 |
|
||
|
|
| `height` | `uint32_t` | 纹理高度 |
|
||
|
|
| `format` | `DXGI_FORMAT` | 像素格式 |
|
||
|
|
|
||
|
|
## 返回值
|
||
|
|
|
||
|
|
`bool` - 初始化是否成功
|
||
|
|
|
||
|
|
## 复杂度
|
||
|
|
|
||
|
|
O(n) - 取决于纹理大小，内部创建临时上传堆
|
||
|
|
|
||
|
|
## 示例
|
||
|
|
|
||
|
|
```cpp
|
||
|
|
std::vector<uint8_t> pixels = LoadImage("texture.png");
|
||
|
|
texture->InitializeFromData(device, cmdList, pixels.data(), width, height, DXGI_FORMAT_R8G8B8A8_UNORM);
|
||
|
|
```
|
||
|
|
|
||
|
|
## 相关文档
|
||
|
|
|
||
|
|
- [D3D12Texture](texture.md) - 类总览
|