overte/scripts/developer/tests/scriptableResource/movieTest.js

//
//  movieTest.js
//  scripts/developer/tests/scriptableResource 
//
//  Created by Zach Pomerantz on 4/27/16.
//  Copyright 2016 High Fidelity, Inc.
//
//  Preloads textures, plays them on a frame model, and unloads them.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

var entity;

Script.include([
        '../../../developer/utilities/cache/cacheStats.js',
        'lib.js',
], function() {
    getFrame(function(frame) {
        entity = frame;
        prefetch(function(frames) {
            play(frame, frames, function() {
                // Delete each texture, so the next garbage collection cycle will release them.

                // Setting frames = null breaks the reference,
                // but will not delete frames from the calling scope.
                // Instead, we must mutate it in-place to free its elements for GC
                // (assuming the elements are not held elsewhere).
                while (frames.length) { frames.pop(); }

                // Alternatively, forcibly release each texture without relying on GC.
                // frames.forEach(function(texture) { texture.release(); });

                Entities.deleteEntity(entity);
                Script.requestGarbageCollection();
            });
        });
    });
});

Script.scriptEnding.connect(function() { entity && Entities.deleteEntity(entity); });