pixi.js

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{"version":3,"file":"ViewableBuffer.mjs","sources":["../../../src/utils/data/ViewableBuffer.ts"],"sourcesContent":["import { type TypedArray } from '../../rendering/renderers/shared/buffer/Buffer';\n\n/**\n * Flexible wrapper around `ArrayBuffer` that also provides typed array views on demand.\n * @category utils\n * @advanced\n */\nexport class ViewableBuffer\n{\n /** The size of the buffer in bytes. */\n public size: number;\n\n /** Underlying `ArrayBuffer` that holds all the data and is of capacity `this.size`. */\n public rawBinaryData: ArrayBufferLike;\n\n /** View on the raw binary data as a `Uint32Array`. */\n public uint32View: Uint32Array;\n\n /** View on the raw binary data as a `Float32Array`. */\n public float32View: Float32Array;\n /** View on the raw binary data as a `Uint16Array`. */\n public uint16View: Uint16Array;\n\n private _int8View: Int8Array;\n private _uint8View: Uint8Array;\n private _int16View: Int16Array;\n private _int32View: Int32Array;\n private _float64Array: Float64Array;\n private _bigUint64Array: BigUint64Array;\n\n /**\n * @param length - The size of the buffer in bytes.\n */\n constructor(length: number);\n\n /**\n * @param arrayBuffer - The source array buffer.\n */\n constructor(arrayBuffer: ArrayBufferLike);\n\n constructor(sizeOrBuffer: number | ArrayBufferLike | Uint8Array)\n {\n if (typeof sizeOrBuffer === 'number')\n {\n this.rawBinaryData = new ArrayBuffer(sizeOrBuffer);\n }\n else if (sizeOrBuffer instanceof Uint8Array)\n {\n this.rawBinaryData = sizeOrBuffer.buffer as ArrayBuffer;\n }\n else\n {\n this.rawBinaryData = sizeOrBuffer;\n }\n\n this.uint32View = new Uint32Array(this.rawBinaryData);\n this.float32View = new Float32Array(this.rawBinaryData);\n\n this.size = this.rawBinaryData.byteLength;\n }\n\n /** View on the raw binary data as a `Int8Array`. */\n get int8View(): Int8Array\n {\n if (!this._int8View)\n {\n this._int8View = new Int8Array(this.rawBinaryData);\n }\n\n return this._int8View;\n }\n\n /** View on the raw binary data as a `Uint8Array`. */\n get uint8View(): Uint8Array\n {\n if (!this._uint8View)\n {\n this._uint8View = new Uint8Array(this.rawBinaryData);\n }\n\n return this._uint8View;\n }\n\n /** View on the raw binary data as a `Int16Array`. */\n get int16View(): Int16Array\n {\n if (!this._int16View)\n {\n this._int16View = new Int16Array(this.rawBinaryData);\n }\n\n return this._int16View;\n }\n\n /** View on the raw binary data as a `Int32Array`. */\n get int32View(): Int32Array\n {\n if (!this._int32View)\n {\n this._int32View = new Int32Array(this.rawBinaryData);\n }\n\n return this._int32View;\n }\n\n /** View on the raw binary data as a `Float64Array`. */\n get float64View(): Float64Array\n {\n if (!this._float64Array)\n {\n this._float64Array = new Float64Array(this.rawBinaryData);\n }\n\n return this._float64Array;\n }\n\n /** View on the raw binary data as a `BigUint64Array`. */\n get bigUint64View(): BigUint64Array\n {\n if (!this._bigUint64Array)\n {\n this._bigUint64Array = new BigUint64Array(this.rawBinaryData);\n }\n\n return this._bigUint64Array;\n }\n\n /**\n * Returns the view of the given type.\n * @param type - One of `int8`, `uint8`, `int16`,\n * `uint16`, `int32`, `uint32`, and `float32`.\n * @returns - typed array of given type\n */\n public view(type: string): TypedArray\n {\n return (this as any)[`${type}View`];\n }\n\n /** Destroys all buffer references. 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