WasmGPU.createHeapArena().allocU8¶
Summary¶
WasmGPU.createHeapArena().allocU8 allocates byte storage from an arena and returns WasmSlice<Uint8Array>.
This is useful for packed binary payloads, headers, and staging buffers.
Syntax¶
WasmGPU.createHeapArena().allocU8(len: number, alignBytes?: number): WasmSlice<Uint8Array>
const slice = arena.allocU8(len, alignBytes);
Parameters¶
| Name | Type | Required | Description |
|---|---|---|---|
len |
number |
Yes | Number of bytes to allocate. |
alignBytes |
number |
No | Byte alignment for this allocation, default 16. |
Returns¶
WasmSlice<Uint8Array> - Arena-scoped byte slice.
Example¶
const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);
const arena = wgpu.createHeapArena(256 * 1024);
const payload = arena.allocU8(32, 16);
payload.view().set([1, 2, 3, 4, 5, 6]);
console.log(payload.byteLength, payload.ptr);