1/* 2 * Copyright (c) 2022-2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import { int32 } from "@koalaui/common" 17import { KPointer } from "../../interop/InteropTypes" 18 19export const nullptr = BigInt(0) 20 21export function isNullPtr(value: KPointer): boolean { 22 return value === nullptr 23} 24 25export function ptrToString(ptr: KPointer) { 26 return `0x${ptr!.toString(16).padStart(8, "0")}` 27} 28 29export function isSamePtr(a: KPointer, b: KPointer) { 30 return (a === b) 31} 32 33// TODO rethink me 34export function ptrToBits(ptr: KPointer): Uint32Array | null { 35 let result = new Uint32Array(2) 36 let ptrBigInt = ptr as bigint 37 result[0] = Number(ptrBigInt & BigInt(0xFFFFFFFF)) 38 result[1] = Number((ptrBigInt >> BigInt(32)) & BigInt(0xFFFFFFFF)) 39 return result 40} 41 42export function bitsToPtr(array: Int32Array, offset: int32): KPointer { 43 let ptrBigInt: bigint = BigInt(array[offset + 1]) & BigInt(0xFFFFFFFF) 44 ptrBigInt = (ptrBigInt << BigInt(32)) | (BigInt(array[offset]) & BigInt(0xFFFFFFFF)) 45 return ptrBigInt 46} 47