compute.CPUndarray#data¶

Summary¶

compute.CPUndarray#data returns a typed contiguous data view for row-major arrays. It requires isContiguousC === true; otherwise it throws. The contiguous view supports direct bulk element reads and writes. For non-contiguous layouts, use get/set or inspect backingBytes. The returned typed array aliases WebAssembly memory. Discard and reacquire it after that memory grows, and do not use it after the ndarray is destroyed.

Syntax¶

CPUndarray.data(): NumberTypedArray
const typed = a.data();

Parameters¶

This API does not take parameters.

Returns¶

NumberTypedArray - Typed array view of contiguous ndarray elements.

Type Details¶

type NumberTypedArray =
    | Int8Array | Uint8Array
    | Int16Array | Uint16Array
    | Int32Array | Uint32Array
    | Float32Array | Float64Array;

Example¶

const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);

const a = wgpu.compute.CPUndarray.fromArray("f32", [2, 2], new Float32Array([1, 2, 3, 4]));
const data = a.data();
data[0] = 10;
console.log(Array.from(data), a.get(0, 0));
a.destroy();