@awayjs/stage/dist/lib/image/ProgramDataPool.js

Stage for AwayJS

import { ProgramData } from '../image/ProgramData';
/**
 * @class away.pool.ProgramDataPool
 */
var ProgramDataPool = /** @class */ (function () {
    /**
     * //TODO
     *
     * @param {Stage} stage
     */
    function ProgramDataPool(stage) {
        this._pool = {};
        // Killing pool
        this._disposedPool = {};
        /**
         * Time to alive Program data after disposing, sec
         */
        this.keepAlive = 1000; //1 sec in ms
        this._stage = stage;
    }
    /**
     * Collect `disposed` progs and dispose it finaly
     */
    ProgramDataPool.prototype.collect = function () {
        var now = Date.now();
        for (var key in this._disposedPool) {
            var prog = this._disposedPool[key];
            if (!prog.usages && (prog.disposedAt + this.keepAlive < now) || prog.disposed) {
                delete this._pool[key];
                delete this._disposedPool[key];
                prog.disposeFinaly();
            }
        }
    };
    /**
     * //TODO
     *
     * @param materialOwner
     * @returns ITexture
     */
    ProgramDataPool.prototype.getItem = function (vertexString, fragmentString) {
        var key = vertexString + fragmentString;
        var prog = this._pool[key] || (this._pool[key] = new ProgramData(this, this._stage, vertexString, fragmentString));
        prog.disposedAt = -1;
        delete this._disposedPool[key];
        this.collect();
        return prog;
    };
    /**
     * //TODO
     *
     * @param materialOwner
     */
    ProgramDataPool.prototype.disposeItem = function (key) {
        var entry = this._pool[key];
        if (entry) {
            entry.disposedAt = Date.now();
            this._disposedPool[key] = entry;
        }
    };
    return ProgramDataPool;
}());
export { ProgramDataPool };