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/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL ES Utilities
* ------------------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
'use strict';
goog.provide('framework.delibs.debase.deUtil');
goog.require('framework.delibs.debase.deMath');
goog.scope(function() {
var deUtil = framework.delibs.debase.deUtil;
var deMath = framework.delibs.debase.deMath;
//! Get an element of an array with a specified size.
/**
* @param {Array} array
* @param {number} offset
* @return {*}
*/
deUtil.getArrayElement = function(array, offset) {
assertMsgOptions(deMath.deInBounds32(offset, 0, array.length), 'Array element out of bounds', false, true);
return array[offset];
};
/**
* clone - If you need to pass/assign an object by value, call this
* @param {*} obj
* @return {*}
*/
deUtil.clone = function(obj) {
if (obj == null || typeof(obj) != 'object')
return obj;
var temp = {};
if (ArrayBuffer.isView(obj)) {
temp = new obj.constructor(obj);
} else if (obj instanceof Array) {
temp = new Array(obj.length);
for (var akey in obj)
temp[akey] = deUtil.clone(obj[akey]);
} else if (obj instanceof ArrayBuffer) {
temp = new ArrayBuffer(obj.byteLength);
var dst = new Uint8Array(temp);
var src = new Uint8Array(obj);
dst.set(src);
} else {
temp = Object.create(obj.constructor.prototype);
temp.constructor = obj.constructor;
for (var key in obj)
temp[key] = deUtil.clone(obj[key]);
}
return temp;
};
/**
* Add a push_unique function to Array. Will insert only if there is no equal element.
* @template T
* @param {Array<T>} array Any array
* @param {T} object Any object
*/
deUtil.dePushUniqueToArray = function(array, object) {
//Simplest implementation
for (var i = 0; i < array.length; i++) {
if (object.equals !== undefined)
if (object.equals(array[i]))
return undefined;
else if (object === array[i])
return undefined;
}
array.push(object);
};
});