/**

* @license

* Copyright 2019 Google LLC. All Rights Reserved.

* 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.

* =============================================================================

*/

function printTime(elapsed) {

return elapsed.toFixed(1) + ' ms';

}

function printMemory(bytes) {

if (bytes < 1024) {

return bytes + ' B';

} else if (bytes < 1024 * 1024) {

return (bytes / 1024).toFixed(2) + ' KB';

} else {

return (bytes / (1024 * 1024)).toFixed(2) + ' MB';

}

}

function sleep(timeMs) {

return new Promise(resolve => setTimeout(resolve, timeMs));

}

function queryTimerIsEnabled() {

return _tfengine.ENV.getNumber(

'WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION') > 0;

}