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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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.common.tcuMatrixUtil');
goog.require('framework.common.tcuMatrix');
goog.scope(function() {
var tcuMatrixUtil = framework.common.tcuMatrixUtil;
var tcuMatrix = framework.common.tcuMatrix;
/**
* @param {Array<number>} translation
* @return {tcuMatrix.Matrix}
*/
tcuMatrixUtil.translationMatrix = function(translation) {
var len = translation.length;
var res = new tcuMatrix.Matrix(len + 1, len + 1);
for (var row = 0; row < len; row++)
res.set(row, len, translation[row]);
return res;
};
/**
* Flatten an array of arrays or matrices
* @param {(Array<Array<number>> | Array<tcuMatrix.Matrix>)} a
* @return {Array<number>}
*/
tcuMatrixUtil.flatten = function(a) {
if (a[0] instanceof Array) {
var merged = [];
return merged.concat.apply(merged, a);
}
if (a[0] instanceof tcuMatrix.Matrix) {
/** @type {tcuMatrix.Matrix} */ var m = a[0];
var rows = m.rows;
var cols = m.cols;
var size = a.length;
var result = [];
for (var col = 0; col < cols; col++)
for (var i = 0; i < size; i++)
result.push(a[i].getColumn(col));
return [].concat.apply([], result);
}
if (typeof(a[0]) === 'number')
return a;
throw new Error('Invalid input');
};
});
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