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add console logs for debugging extra frame

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This commit is contained in:
Becky Gilbert 2021-05-03 17:17:43 -07:00
parent 1b7ef52327
commit 6b1988f100
2 changed files with 9 additions and 1 deletions
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8
jspsych.js
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@ -2528,11 +2528,15 @@ jsPsych.pluginAPI = (function() {
window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
var cancelAnimationFrame = window.cancelAnimationFrame || window.mozCancelAnimationFrame;
var raf_count;
module.setTimeout = function(callback, delay){
// record the start time
var start_time = performance.now();
raf_count = 0;
console.log('setTimeout start time: ', start_time);
var handle = requestAnimationFrame(function(timestamp) {
raf_count++;
console.log('count: ', raf_count, ' time: ', performance.now() - start_time);
// setup the next rAF call to check for timeouts and update handle value
handle = requestAnimationFrame(function(timestamp) {
checkForTimeouts(timestamp, start_time, callback, delay, handle);
@ -2550,7 +2554,9 @@ jsPsych.pluginAPI = (function() {
}
function checkForTimeouts(timestamp, start_time, callback, delay, handle) {
raf_count++;
var curr_duration = performance.now() - start_time;
console.log('count: ', raf_count, ' time: ', curr_duration);
// check if the current duration is at least as long as the intended duration
// minus half the typical frame duration (~16 ms). this helps avoid displaying the stimulus
// for one too many frames.

2
plugins/jspsych-html-keyboard-response.js
View File

@ -69,6 +69,7 @@ jsPsych.plugins["html-keyboard-response"] = (function() {
// draw
display_element.innerHTML = new_html;
console.log('display time: ', performance.now());
// store response
var response = {
@ -97,6 +98,7 @@ jsPsych.plugins["html-keyboard-response"] = (function() {
// clear the display
display_element.innerHTML = '';
console.log('clear display time: ', performance.now())
// move on to the next trial
jsPsych.finishTrial(trial_data);