mirror of
https://github.com/jketterl/openwebrx.git
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c11ff91f3d
- waterfall_add: call add_canvas() before canvas_context check so first canvas is created and waterfall can start - Keep defensive null checks for divlog, scale_setup, init_canvas_container, networkSpeedMeasurement, add_canvas (for missing DOM)
1593 lines
59 KiB
JavaScript
1593 lines
59 KiB
JavaScript
/*
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This file is part of OpenWebRX,
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an open-source SDR receiver software with a web UI.
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Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
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Copyright (c) 2019-2021 by Jakob Ketterl <dd5jfk@darc.de>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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*/
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is_firefox = navigator.userAgent.indexOf("Firefox") >= 0;
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var bandwidth;
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var center_freq;
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var fft_size;
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var fft_compression = "none";
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var fft_codec;
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var waterfall_setup_done = 0;
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var secondary_fft_size;
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function updateVolume() {
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audioEngine.setVolume(parseFloat($("#openwebrx-panel-volume").val()) / 100);
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}
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function toggleMute() {
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var $muteButton = $('.openwebrx-mute-button');
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var $volumePanel = $('#openwebrx-panel-volume');
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if ($muteButton.hasClass('muted')) {
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$muteButton.removeClass('muted');
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$volumePanel.prop('disabled', false).val(volumeBeforeMute);
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} else {
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$muteButton.addClass('muted');
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volumeBeforeMute = $volumePanel.val();
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$volumePanel.prop('disabled', true).val(0);
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}
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updateVolume();
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}
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function zoomInOneStep() {
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zoom_set(zoom_level + 1);
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}
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function zoomOutOneStep() {
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zoom_set(zoom_level - 1);
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}
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function zoomInTotal() {
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zoom_set(zoom_levels_count);
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}
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function zoomOutTotal() {
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zoom_set(0);
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}
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var waterfall_min_level;
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var waterfall_max_level;
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var waterfall_min_level_default;
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var waterfall_max_level_default;
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var waterfall_colors = buildWaterfallColors(['#000', '#FFF']);
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var waterfall_auto_levels;
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var waterfall_auto_min_range;
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var waterfall_measure_minmax_now = false;
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var waterfall_measure_minmax_continuous = false;
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function buildWaterfallColors(input) {
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return chroma.scale(input).colors(256, 'rgb')
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}
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function updateWaterfallColors(which) {
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var $wfmax = $("#openwebrx-waterfall-color-max");
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var $wfmin = $("#openwebrx-waterfall-color-min");
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waterfall_max_level = parseInt($wfmax.val());
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waterfall_min_level = parseInt($wfmin.val());
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if (waterfall_min_level >= waterfall_max_level) {
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if (!which) {
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waterfall_min_level = waterfall_max_level -1;
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} else {
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waterfall_max_level = waterfall_min_level + 1;
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}
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}
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updateWaterfallSliders();
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}
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function updateWaterfallSliders() {
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$('#openwebrx-waterfall-color-max')
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.val(waterfall_max_level)
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.attr('title', 'Waterfall maximum level (' + Math.round(waterfall_max_level) + ' dB)');
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$('#openwebrx-waterfall-color-min')
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.val(waterfall_min_level)
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.attr('title', 'Waterfall minimum level (' + Math.round(waterfall_min_level) + ' dB)');
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}
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function waterfallColorsDefault() {
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waterfall_min_level = waterfall_min_level_default;
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waterfall_max_level = waterfall_max_level_default;
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updateWaterfallSliders();
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waterfallColorsContinuousReset();
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}
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function waterfallColorsAuto(levels) {
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var min_level = levels.min - waterfall_auto_levels.min;
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var max_level = levels.max + waterfall_auto_levels.max;
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max_level = Math.max(min_level + (waterfall_auto_min_range || 0), max_level);
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waterfall_min_level = min_level;
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waterfall_max_level = max_level;
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updateWaterfallSliders();
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}
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var waterfall_continuous = {
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min: -150,
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max: 0
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};
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function waterfallColorsContinuousReset() {
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waterfall_continuous.min = waterfall_min_level;
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waterfall_continuous.max = waterfall_max_level;
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}
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function waterfallColorsContinuous(levels) {
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if (levels.max > waterfall_continuous.max + 1) {
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waterfall_continuous.max += 1;
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} else if (levels.max < waterfall_continuous.max - 1) {
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waterfall_continuous.max -= .1;
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}
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if (levels.min < waterfall_continuous.min - 1) {
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waterfall_continuous.min -= 1;
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} else if (levels.min > waterfall_continuous.min + 1) {
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waterfall_continuous.min += .1;
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}
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waterfallColorsAuto(waterfall_continuous);
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}
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function setSmeterRelativeValue(value) {
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if (value < 0) value = 0;
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if (value > 1.0) value = 1.0;
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var $meter = $("#openwebrx-smeter");
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var $bar = $meter.find(".openwebrx-smeter-bar");
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$bar.css({transform: 'translate(' + ((value - 1) * 100) + '%) translateZ(0)'});
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if (value > 0.9) {
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// red
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$bar.css({background: 'linear-gradient(to top, #ff5939 , #961700)'});
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} else if (value > 0.7) {
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// yellow
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$bar.css({background: 'linear-gradient(to top, #fff720 , #a49f00)'});
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} else {
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// red
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$bar.css({background: 'linear-gradient(to top, #22ff2f , #008908)'});
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}
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}
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function setSquelchSliderBackground(val) {
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var $slider = $('#openwebrx-panel-receiver .openwebrx-squelch-slider');
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var min = Number($slider.attr('min'));
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var max = Number($slider.attr('max'));
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var sliderPosition = $slider.val();
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var relative = (val - min) / (max - min);
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// use a brighter color when squelch is open
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var color = val >= sliderPosition ? '#22ff2f' : '#008908';
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// we don't use the gradient, but separate the colors discretely using css tricks
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var style = 'linear-gradient(90deg, ' + color + ', ' + color + ' ' + relative * 100 + '%, #B6B6B6 ' + relative * 100 + '%)';
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$slider.css('--track-background', style);
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}
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function getLogSmeterValue(value) {
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return 10 * Math.log10(value);
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}
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function setSmeterAbsoluteValue(value) //the value that comes from `csdr squelch_and_smeter_cc`
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{
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var logValue = getLogSmeterValue(value);
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setSquelchSliderBackground(logValue);
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var lowLevel = waterfall_min_level - 20;
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var highLevel = waterfall_max_level + 20;
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var percent = (logValue - lowLevel) / (highLevel - lowLevel);
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setSmeterRelativeValue(percent);
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$("#openwebrx-smeter-db").html(logValue.toFixed(1) + " dB");
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}
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function typeInAnimation(element, timeout, what, onFinish) {
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if (!what) {
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onFinish();
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return;
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}
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element.innerHTML += what[0];
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window.setTimeout(function () {
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typeInAnimation(element, timeout, what.substring(1), onFinish);
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}, timeout);
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}
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// ========================================================
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// ================ DEMODULATOR ROUTINES ================
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// ========================================================
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function getDemodulators() {
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return [
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$('#openwebrx-panel-receiver').demodulatorPanel().getDemodulator()
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].filter(function(d) {
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return !!d;
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});
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}
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function mkenvelopes(visible_range) //called from mkscale
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{
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var demodulators = getDemodulators();
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scale_ctx.clearRect(0, 0, scale_ctx.canvas.width, 22); //clear the upper part of the canvas (where filter envelopes reside)
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for (var i = 0; i < demodulators.length; i++) {
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demodulators[i].envelope.draw(visible_range);
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}
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if (demodulators.length) {
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var bandpass = demodulators[0].getBandpass();
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secondary_demod_waterfall_set_zoom(bandpass.low_cut, bandpass.high_cut);
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}
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}
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function waterfallWidth() {
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return $('body').width();
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}
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// ========================================================
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// =================== SCALE ROUTINES ===================
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// ========================================================
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var scale_ctx;
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var scale_canvas;
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function scale_setup() {
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scale_canvas = $("#openwebrx-scale-canvas")[0];
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if (!scale_canvas) return;
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scale_ctx = scale_canvas.getContext("2d");
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if (!scale_ctx) return;
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scale_canvas.addEventListener("mousedown", scale_canvas_mousedown, false);
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scale_canvas.addEventListener("mousemove", scale_canvas_mousemove, false);
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scale_canvas.addEventListener("mouseup", scale_canvas_mouseup, false);
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resize_scale();
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var frequency_container = $("#openwebrx-frequency-container");
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if (frequency_container.length) frequency_container.on("mousemove", frequency_container_mousemove, false);
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}
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var scale_canvas_drag_params = {
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mouse_down: false,
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drag: false,
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start_x: 0,
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key_modifiers: {shiftKey: false, altKey: false, ctrlKey: false}
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};
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function scale_canvas_mousedown(evt) {
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scale_canvas_drag_params.mouse_down = true;
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scale_canvas_drag_params.drag = false;
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scale_canvas_drag_params.start_x = evt.pageX;
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scale_canvas_drag_params.key_modifiers.shiftKey = evt.shiftKey;
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scale_canvas_drag_params.key_modifiers.altKey = evt.altKey;
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scale_canvas_drag_params.key_modifiers.ctrlKey = evt.ctrlKey;
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evt.preventDefault();
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}
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function scale_offset_freq_from_px(x, visible_range) {
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if (typeof visible_range === "undefined") visible_range = get_visible_freq_range();
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return (visible_range.start + visible_range.bw * (x / waterfallWidth())) - center_freq;
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}
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function scale_canvas_mousemove(evt) {
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var event_handled = false;
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var i;
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var demodulators = getDemodulators();
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if (scale_canvas_drag_params.mouse_down && !scale_canvas_drag_params.drag && Math.abs(evt.pageX - scale_canvas_drag_params.start_x) > canvas_drag_min_delta)
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//we can use the main drag_min_delta thing of the main canvas
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{
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scale_canvas_drag_params.drag = true;
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//call the drag_start for all demodulators (and they will decide if they're dragged, based on X coordinate)
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for (i = 0; i < demodulators.length; i++) event_handled |= demodulators[i].envelope.drag_start(evt.pageX, scale_canvas_drag_params.key_modifiers);
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scale_canvas.style.cursor = "move";
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}
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else if (scale_canvas_drag_params.drag) {
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//call the drag_move for all demodulators (and they will decide if they're dragged)
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for (i = 0; i < demodulators.length; i++) event_handled |= demodulators[i].envelope.drag_move(evt.pageX);
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if (!event_handled) demodulators[0].set_offset_frequency(scale_offset_freq_from_px(evt.pageX));
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}
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}
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function frequency_container_mousemove(evt) {
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var frequency = center_freq + scale_offset_freq_from_px(evt.pageX);
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$('#openwebrx-panel-receiver').demodulatorPanel().setMouseFrequency(frequency);
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}
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function scale_canvas_end_drag(x) {
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scale_canvas.style.cursor = "default";
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scale_canvas_drag_params.drag = false;
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scale_canvas_drag_params.mouse_down = false;
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var event_handled = false;
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var demodulators = getDemodulators();
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for (var i = 0; i < demodulators.length; i++) event_handled |= demodulators[i].envelope.drag_end();
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if (!event_handled) demodulators[0].set_offset_frequency(scale_offset_freq_from_px(x));
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}
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function scale_canvas_mouseup(evt) {
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scale_canvas_end_drag(evt.pageX);
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}
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function scale_px_from_freq(f, range) {
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return Math.round(((f - range.start) / range.bw) * waterfallWidth());
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}
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function get_visible_freq_range() {
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if (!bandwidth) return false;
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var fcalc = function (x) {
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var canvasWidth = waterfallWidth() * get_zoom(zoom_level);
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return Math.round(((-zoom_offset_px + x) / canvasWidth) * bandwidth) + (center_freq - bandwidth / 2);
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};
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var out = {
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start: fcalc(0),
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center: fcalc(waterfallWidth() / 2),
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end: fcalc(waterfallWidth()),
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}
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out.bw = out.end - out.start;
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out.hps = out.bw / waterfallWidth();
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return out;
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}
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var scale_markers_levels = [
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{
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"large_marker_per_hz": 10000000, //large
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 0
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},
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{
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"large_marker_per_hz": 5000000,
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 0
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},
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{
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"large_marker_per_hz": 1000000,
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 0
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},
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{
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"large_marker_per_hz": 500000,
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 1
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},
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{
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"large_marker_per_hz": 100000,
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 1
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},
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{
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"large_marker_per_hz": 50000,
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 2
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},
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{
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"large_marker_per_hz": 10000,
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 2
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},
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{
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"large_marker_per_hz": 5000,
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 3
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},
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{
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"large_marker_per_hz": 1000,
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"estimated_text_width": 70,
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"format": "{x} MHz",
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"pre_divide": 1000000,
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"decimals": 1
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}
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];
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var scale_min_space_bw_texts = 50;
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var scale_min_space_bw_small_markers = 7;
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function get_scale_mark_spacing(range) {
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var out = {};
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var fcalc = function (freq) {
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out.numlarge = (range.bw / freq);
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out.large = waterfallWidth() / out.numlarge; //distance between large markers (these have text)
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out.ratio = 5; //(ratio-1) small markers exist per large marker
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out.small = out.large / out.ratio; //distance between small markers
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if (out.small < scale_min_space_bw_small_markers) return false;
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if (out.small / 2 >= scale_min_space_bw_small_markers && freq.toString()[0] !== "5") {
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out.small /= 2;
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out.ratio *= 2;
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}
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out.smallbw = freq / out.ratio;
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return true;
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};
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for (var i = scale_markers_levels.length - 1; i >= 0; i--) {
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var mp = scale_markers_levels[i];
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if (!fcalc(mp.large_marker_per_hz)) continue;
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//console.log(mp.large_marker_per_hz);
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//console.log(out);
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if (out.large - mp.estimated_text_width > scale_min_space_bw_texts) break;
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}
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out.params = mp;
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return out;
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}
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var range;
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function mkscale() {
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//clear the lower part of the canvas (where frequency scale resides; the upper part is used by filter envelopes):
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range = get_visible_freq_range();
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if (!range) return;
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mkenvelopes(range); //when scale changes we will always have to redraw filter envelopes, too
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scale_ctx.clearRect(0, 22, scale_ctx.canvas.width, scale_ctx.canvas.height - 22);
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scale_ctx.strokeStyle = "#fff";
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scale_ctx.font = "bold 11px sans-serif";
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scale_ctx.textBaseline = "top";
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scale_ctx.fillStyle = "#fff";
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var spacing = get_scale_mark_spacing(range);
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//console.log(spacing);
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var marker_hz = Math.ceil(range.start / spacing.smallbw) * spacing.smallbw;
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var text_h_pos = 22 + 10 + ((is_firefox) ? 3 : 0);
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var text_to_draw = '';
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var ftext = function (f) {
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text_to_draw = format_frequency(spacing.params.format, f, spacing.params.pre_divide, spacing.params.decimals);
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};
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var last_large;
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var x;
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while ((x = scale_px_from_freq(marker_hz, range)) <= window.innerWidth) {
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scale_ctx.beginPath();
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scale_ctx.moveTo(x, 22);
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if (marker_hz % spacing.params.large_marker_per_hz === 0) { //large marker
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if (typeof first_large === "undefined") var first_large = marker_hz;
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last_large = marker_hz;
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scale_ctx.lineWidth = 3.5;
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scale_ctx.lineTo(x, 22 + 11);
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ftext(marker_hz);
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var text_measured = scale_ctx.measureText(text_to_draw);
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scale_ctx.textAlign = "center";
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//advanced text drawing begins
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if (zoom_level === 0 && (range.start + spacing.smallbw * spacing.ratio > marker_hz) && (x < text_measured.width / 2)) { //if this is the first overall marker when zoomed out... and if it would be clipped off the screen...
|
||
if (scale_px_from_freq(marker_hz + spacing.smallbw * spacing.ratio, range) - text_measured.width >= scale_min_space_bw_texts) { //and if we have enough space to draw it correctly without clipping
|
||
scale_ctx.textAlign = "left";
|
||
scale_ctx.fillText(text_to_draw, 0, text_h_pos);
|
||
}
|
||
}
|
||
else if (zoom_level === 0 && (range.end - spacing.smallbw * spacing.ratio < marker_hz) && (x > window.innerWidth - text_measured.width / 2)) { // if this is the last overall marker when zoomed out... and if it would be clipped off the screen...
|
||
if (window.innerWidth - text_measured.width - scale_px_from_freq(marker_hz - spacing.smallbw * spacing.ratio, range) >= scale_min_space_bw_texts) { //and if we have enough space to draw it correctly without clipping
|
||
scale_ctx.textAlign = "right";
|
||
scale_ctx.fillText(text_to_draw, window.innerWidth, text_h_pos);
|
||
}
|
||
}
|
||
else scale_ctx.fillText(text_to_draw, x, text_h_pos); //draw text normally
|
||
}
|
||
else { //small marker
|
||
scale_ctx.lineWidth = 2;
|
||
scale_ctx.lineTo(x, 22 + 8);
|
||
}
|
||
marker_hz += spacing.smallbw;
|
||
scale_ctx.stroke();
|
||
}
|
||
if (zoom_level !== 0) { // if zoomed, we don't want the texts to disappear because their markers can't be seen
|
||
// on the left side
|
||
scale_ctx.textAlign = "center";
|
||
var f = first_large - spacing.smallbw * spacing.ratio;
|
||
x = scale_px_from_freq(f, range);
|
||
ftext(f);
|
||
var w = scale_ctx.measureText(text_to_draw).width;
|
||
if (x + w / 2 > 0) scale_ctx.fillText(text_to_draw, x, 22 + 10);
|
||
// on the right side
|
||
f = last_large + spacing.smallbw * spacing.ratio;
|
||
x = scale_px_from_freq(f, range);
|
||
ftext(f);
|
||
w = scale_ctx.measureText(text_to_draw).width;
|
||
if (x - w / 2 < window.innerWidth) scale_ctx.fillText(text_to_draw, x, 22 + 10);
|
||
}
|
||
}
|
||
|
||
function resize_scale() {
|
||
var ratio = window.devicePixelRatio || 1;
|
||
var w = window.innerWidth;
|
||
var h = 47;
|
||
scale_canvas.style.width = w + "px";
|
||
scale_canvas.style.height = h + "px";
|
||
w *= ratio;
|
||
h *= ratio;
|
||
scale_canvas.width = w;
|
||
scale_canvas.height = h;
|
||
scale_ctx.scale(ratio, ratio);
|
||
mkscale();
|
||
bookmarks.position();
|
||
}
|
||
|
||
function canvas_get_freq_offset(relativeX) {
|
||
var rel = (relativeX / canvas_container.clientWidth);
|
||
return Math.round((bandwidth * rel) - (bandwidth / 2));
|
||
}
|
||
|
||
function canvas_get_frequency(relativeX) {
|
||
return center_freq + canvas_get_freq_offset(relativeX);
|
||
}
|
||
|
||
|
||
function format_frequency(format, freq_hz, pre_divide, decimals) {
|
||
var out = format.replace("{x}", (freq_hz / pre_divide).toFixed(decimals));
|
||
var at = out.indexOf(".") + 4;
|
||
while (decimals > 3) {
|
||
out = out.substr(0, at) + "," + out.substr(at);
|
||
at += 4;
|
||
decimals -= 3;
|
||
}
|
||
return out;
|
||
}
|
||
|
||
var canvas_drag = false;
|
||
var canvas_drag_min_delta = 1;
|
||
var canvas_mouse_down = false;
|
||
var canvas_drag_last_x;
|
||
var canvas_drag_last_y;
|
||
var canvas_drag_start_x;
|
||
var canvas_drag_start_y;
|
||
|
||
function canvas_mousedown(evt) {
|
||
canvas_mouse_down = true;
|
||
canvas_drag = false;
|
||
canvas_drag_last_x = canvas_drag_start_x = evt.pageX;
|
||
canvas_drag_last_y = canvas_drag_start_y = evt.pageY;
|
||
evt.preventDefault(); //don't show text selection mouse pointer
|
||
}
|
||
|
||
function canvas_mousemove(evt) {
|
||
if (!waterfall_setup_done) return;
|
||
var relativeX = get_relative_x(evt);
|
||
if (canvas_mouse_down) {
|
||
if (!canvas_drag && Math.abs(evt.pageX - canvas_drag_start_x) > canvas_drag_min_delta) {
|
||
canvas_drag = true;
|
||
canvas_container.style.cursor = "move";
|
||
}
|
||
if (canvas_drag) {
|
||
var deltaX = canvas_drag_last_x - evt.pageX;
|
||
var dpx = range.hps * deltaX;
|
||
if (
|
||
!(zoom_center_rel + dpx > (bandwidth / 2 - waterfallWidth() * (1 - zoom_center_where) * range.hps)) &&
|
||
!(zoom_center_rel + dpx < -bandwidth / 2 + waterfallWidth() * zoom_center_where * range.hps)
|
||
) {
|
||
zoom_center_rel += dpx;
|
||
}
|
||
resize_canvases();
|
||
canvas_drag_last_x = evt.pageX;
|
||
canvas_drag_last_y = evt.pageY;
|
||
mkscale();
|
||
bookmarks.position();
|
||
}
|
||
} else {
|
||
$('#openwebrx-panel-receiver').demodulatorPanel().setMouseFrequency(canvas_get_frequency(relativeX));
|
||
}
|
||
}
|
||
|
||
function canvas_container_mouseleave() {
|
||
canvas_end_drag();
|
||
}
|
||
|
||
function canvas_mouseup(evt) {
|
||
if (!waterfall_setup_done) return;
|
||
var relativeX = get_relative_x(evt);
|
||
|
||
if (!canvas_drag) {
|
||
$('#openwebrx-panel-receiver').demodulatorPanel().getDemodulator().set_offset_frequency(canvas_get_freq_offset(relativeX));
|
||
}
|
||
else {
|
||
canvas_end_drag();
|
||
}
|
||
canvas_mouse_down = false;
|
||
}
|
||
|
||
function canvas_end_drag() {
|
||
canvas_container.style.cursor = "crosshair";
|
||
canvas_mouse_down = false;
|
||
}
|
||
|
||
function zoom_center_where_calc(screenposX) {
|
||
return screenposX / waterfallWidth();
|
||
}
|
||
|
||
function get_relative_x(evt) {
|
||
var relativeX = evt.offsetX || evt.layerX;
|
||
if ($(evt.target).closest(canvas_container).length) return relativeX;
|
||
// compensate for the frequency scale, since that is not resized by the browser.
|
||
var relatives = $(evt.target).closest('#openwebrx-frequency-container').map(function(){
|
||
return evt.pageX - this.offsetLeft;
|
||
});
|
||
if (relatives.length) relativeX = relatives[0];
|
||
|
||
return relativeX - zoom_offset_px;
|
||
}
|
||
|
||
function canvas_mousewheel(evt) {
|
||
if (!waterfall_setup_done) return;
|
||
|
||
var delta = -wheelDelta(evt);
|
||
var relativeX = get_relative_x(evt);
|
||
zoom_step(delta, relativeX, zoom_center_where_calc(evt.pageX));
|
||
evt.preventDefault();
|
||
}
|
||
|
||
|
||
var zoom_max_level_hps = 33; //Hz/pixel
|
||
var zoom_levels_count = 14;
|
||
|
||
function get_zoom_coeff_from_hps(hps) {
|
||
var shown_bw = (window.innerWidth * hps);
|
||
return bandwidth / shown_bw;
|
||
}
|
||
|
||
var zoom_level = 0;
|
||
var zoom_offset_px = 0;
|
||
var zoom_center_rel = 0;
|
||
var zoom_center_where = 0;
|
||
|
||
var smeter_level = 0;
|
||
|
||
function get_zoom(level) {
|
||
var maxc = get_zoom_coeff_from_hps(zoom_max_level_hps);
|
||
if (maxc < 1) return;
|
||
// logarithmic interpolation
|
||
var zoom_ratio = Math.pow(maxc, 1 / zoom_levels_count);
|
||
return Math.pow(zoom_ratio, level);
|
||
}
|
||
|
||
function zoom_step(delta, where, onscreen) {
|
||
zoom_level += delta;
|
||
if (zoom_level < 0) {
|
||
zoom_level = 0;
|
||
} else if (zoom_level > zoom_levels_count) {
|
||
zoom_level = zoom_levels_count;
|
||
}
|
||
|
||
zoom_center_rel = canvas_get_freq_offset(where);
|
||
zoom_center_where = onscreen;
|
||
resize_canvases();
|
||
mkscale();
|
||
bookmarks.position();
|
||
}
|
||
|
||
function zoom_set(level) {
|
||
if (level < 0) {
|
||
zoom_level = 0;
|
||
} else if (level > zoom_levels_count) {
|
||
zoom_level = zoom_levels_count;
|
||
} else {
|
||
zoom_level = parseFloat(level);
|
||
}
|
||
//zoom_center_rel=canvas_get_freq_offset(-canvases[0].offsetLeft+waterfallWidth()/2); //zoom to screen center instead of demod envelope
|
||
var demod = $('#openwebrx-panel-receiver').demodulatorPanel().getDemodulator();
|
||
if (demod) {
|
||
zoom_center_rel = demod.get_offset_frequency();
|
||
}
|
||
zoom_center_where = 0.5 + (zoom_center_rel / bandwidth); //this is a kind of hack
|
||
resize_canvases();
|
||
mkscale();
|
||
bookmarks.position();
|
||
}
|
||
|
||
function zoom_calc() {
|
||
var winsize = waterfallWidth();
|
||
var canvases_new_width = winsize * get_zoom(zoom_level);
|
||
zoom_offset_px = -((canvases_new_width * (0.5 + zoom_center_rel / bandwidth)) - (winsize * zoom_center_where));
|
||
if (zoom_offset_px > 0) zoom_offset_px = 0;
|
||
if (zoom_offset_px < winsize - canvases_new_width)
|
||
zoom_offset_px = winsize - canvases_new_width;
|
||
}
|
||
|
||
var networkSpeedMeasurement;
|
||
var currentprofile = {
|
||
toString: function() {
|
||
return this['sdr_id'] + '|' + this['profile_id'];
|
||
}
|
||
};
|
||
|
||
var COMPRESS_FFT_PAD_N = 10; //should be the same as in csdr.c
|
||
|
||
function on_ws_recv(evt) {
|
||
if (typeof evt.data === 'string') {
|
||
// text messages
|
||
if (networkSpeedMeasurement) networkSpeedMeasurement.add(evt.data.length);
|
||
|
||
if (evt.data.substr(0, 16) === "CLIENT DE SERVER") {
|
||
params = Object.fromEntries(
|
||
evt.data.slice(17).split(' ').map(function(param) {
|
||
var args = param.split('=');
|
||
return [args[0], args.slice(1).join('=')]
|
||
})
|
||
);
|
||
var versionInfo = 'Unknown server';
|
||
if (params.server && params.server === 'openwebrx' && params.version) {
|
||
versionInfo = 'OpenWebRX version: ' + params.version;
|
||
}
|
||
divlog('Server acknowledged WebSocket connection, ' + versionInfo);
|
||
} else {
|
||
try {
|
||
var json = JSON.parse(evt.data);
|
||
switch (json.type) {
|
||
case "config":
|
||
var config = json['value'];
|
||
if ('waterfall_colors' in config)
|
||
waterfall_colors = buildWaterfallColors(config['waterfall_colors']);
|
||
if ('waterfall_levels' in config) {
|
||
waterfall_min_level_default = config['waterfall_levels']['min'];
|
||
waterfall_max_level_default = config['waterfall_levels']['max'];
|
||
}
|
||
if ('waterfall_auto_levels' in config)
|
||
waterfall_auto_levels = config['waterfall_auto_levels'];
|
||
if ('waterfall_auto_min_range' in config)
|
||
waterfall_auto_min_range = config['waterfall_auto_min_range'];
|
||
if ('waterfall_auto_level_default_mode' in config)
|
||
waterfall_measure_minmax_continuous = config['waterfall_auto_level_default_mode'];
|
||
var waterfallAutoButton = $('#openwebrx-waterfall-colors-auto');
|
||
waterfallAutoButton[waterfall_measure_minmax_continuous ? 'addClass' : 'removeClass']('highlighted');
|
||
$('#openwebrx-waterfall-color-min, #openwebrx-waterfall-color-max').prop('disabled', waterfall_measure_minmax_continuous);
|
||
|
||
waterfallColorsDefault();
|
||
|
||
var initial_demodulator_params = {};
|
||
if ('start_mod' in config)
|
||
initial_demodulator_params['mod'] = config['start_mod'];
|
||
if ('start_offset_freq' in config)
|
||
initial_demodulator_params['offset_frequency'] = config['start_offset_freq'];
|
||
if ('initial_squelch_level' in config)
|
||
initial_demodulator_params['squelch_level'] = Number.isInteger(config['initial_squelch_level']) ? config['initial_squelch_level'] : -150;
|
||
|
||
if ('samp_rate' in config)
|
||
bandwidth = config['samp_rate'];
|
||
if ('center_freq' in config)
|
||
center_freq = config['center_freq'];
|
||
if ('fft_size' in config) {
|
||
fft_size = config['fft_size'];
|
||
waterfall_clear();
|
||
}
|
||
if ('audio_compression' in config) {
|
||
var audio_compression = config['audio_compression'];
|
||
audioEngine.setCompression(audio_compression);
|
||
divlog("Audio stream is " + ((audio_compression === "adpcm") ? "compressed" : "uncompressed") + ".");
|
||
}
|
||
if ('fft_compression' in config) {
|
||
fft_compression = config['fft_compression'];
|
||
divlog("FFT stream is " + ((fft_compression === "adpcm") ? "compressed" : "uncompressed") + ".");
|
||
}
|
||
if ('max_clients' in config)
|
||
$('#openwebrx-bar-clients').progressbar().setMaxClients(config['max_clients']);
|
||
|
||
waterfall_init();
|
||
|
||
var demodulatorPanel = $('#openwebrx-panel-receiver').demodulatorPanel();
|
||
demodulatorPanel.setCenterFrequency(center_freq);
|
||
demodulatorPanel.setInitialParams(initial_demodulator_params);
|
||
if ('squelch_auto_margin' in config)
|
||
demodulatorPanel.setSquelchMargin(config['squelch_auto_margin']);
|
||
bookmarks.loadLocalBookmarks();
|
||
|
||
if ('sdr_id' in config || 'profile_id' in config) {
|
||
currentprofile['sdr_id'] = config['sdr_id'] || currentprofile['sdr_id'];
|
||
currentprofile['profile_id'] = config['profile_id'] || currentprofile['profile_id'];
|
||
$('#openwebrx-sdr-profiles-listbox').val(currentprofile.toString());
|
||
|
||
waterfall_clear();
|
||
zoom_set(0);
|
||
}
|
||
|
||
if ('tuning_precision' in config)
|
||
$('#openwebrx-panel-receiver').demodulatorPanel().setTuningPrecision(config['tuning_precision']);
|
||
|
||
if ('aircraft_tracking_service' in config)
|
||
$('#openwebrx-panel-adsb-message').adsbMessagePanel().setAircraftTrackingService(config['aircraft_tracking_service']);
|
||
|
||
break;
|
||
case "secondary_config":
|
||
var s = json['value'];
|
||
secondary_fft_size = s['secondary_fft_size'] || secondary_fft_size;
|
||
secondary_bw = s['secondary_bw'] || secondary_bw;
|
||
if_samp_rate = s['if_samp_rate'] || if_samp_rate;
|
||
if (if_samp_rate) secondary_demod_init_canvases();
|
||
break;
|
||
case "receiver_details":
|
||
$('.webrx-top-container').header().setDetails(json['value']);
|
||
break;
|
||
case "smeter":
|
||
smeter_level = json['value'];
|
||
setSmeterAbsoluteValue(smeter_level);
|
||
break;
|
||
case "cpuusage":
|
||
$('#openwebrx-bar-server-cpu').progressbar().setUsage(json['value']);
|
||
break;
|
||
case "clients":
|
||
$('#openwebrx-bar-clients').progressbar().setClients(json['value']);
|
||
break;
|
||
case "profiles":
|
||
var listbox = $("#openwebrx-sdr-profiles-listbox");
|
||
listbox.html(json['value'].map(function (profile) {
|
||
return '<option value="' + profile['id'] + '">' + profile['name'] + "</option>";
|
||
}).join(""));
|
||
$('#openwebrx-sdr-profiles-listbox').val(currentprofile.toString());
|
||
// this is a bit hacky since it only makes sense if the error is actually "no sdr devices"
|
||
// the only other error condition for which the overlay is used right now is "too many users"
|
||
// so there shouldn't be a problem here
|
||
if (Object.keys(json['value']).length) {
|
||
$('#openwebrx-error-overlay').hide();
|
||
}
|
||
break;
|
||
case "features":
|
||
Modes.setFeatures(json['value']);
|
||
$('#openwebrx-panel-metadata-wfm').metaPanel().each(function() {
|
||
this.setEnabled(!!json.value.redsea);
|
||
});
|
||
break;
|
||
case "metadata":
|
||
$('.openwebrx-meta-panel').metaPanel().each(function(){
|
||
this.update(json['value']);
|
||
});
|
||
break;
|
||
case "dial_frequencies":
|
||
var as_bookmarks = json['value'].map(function (d) {
|
||
return {
|
||
name: d['mode'].toUpperCase(),
|
||
modulation: d['mode'],
|
||
frequency: d['frequency'],
|
||
underlying: d['underlying']
|
||
};
|
||
});
|
||
bookmarks.replace_bookmarks(as_bookmarks, 'dial_frequencies');
|
||
break;
|
||
case "bookmarks":
|
||
bookmarks.replace_bookmarks(json['value'], "server");
|
||
break;
|
||
case "sdr_error":
|
||
divlog(json['value'], true);
|
||
var $overlay = $('#openwebrx-error-overlay');
|
||
$overlay.find('.errormessage').text(json['value']);
|
||
$overlay.show();
|
||
$("#openwebrx-panel-receiver").demodulatorPanel().stopDemodulator();
|
||
break;
|
||
case "demodulator_error":
|
||
divlog(json['value'], true);
|
||
break;
|
||
case 'secondary_demod':
|
||
var value = json['value'];
|
||
var panels = ['wsjt', 'packet', 'pocsag', 'adsb', 'ism', 'hfdl', 'vdl2'].map(function(id) {
|
||
return $('#openwebrx-panel-' + id + '-message')[id + 'MessagePanel']();
|
||
});
|
||
panels.push($('#openwebrx-panel-js8-message').js8());
|
||
if (!panels.some(function(panel) {
|
||
if (!panel.supportsMessage(value)) return false;
|
||
panel.pushMessage(value);
|
||
return true;
|
||
})) {
|
||
secondary_demod_push_data(value);
|
||
}
|
||
break;
|
||
case 'log_message':
|
||
divlog(json['value'], true);
|
||
break;
|
||
case 'backoff':
|
||
divlog("Server is currently busy: " + json['reason'], true);
|
||
var $overlay = $('#openwebrx-error-overlay');
|
||
$overlay.find('.errormessage').text(json['reason']);
|
||
$overlay.show();
|
||
// set a higher reconnection timeout right away to avoid additional load
|
||
reconnect_timeout = 16000;
|
||
break;
|
||
case 'modes':
|
||
Modes.setModes(json['value']);
|
||
break;
|
||
default:
|
||
console.warn('received message of unknown type: ' + json['type']);
|
||
}
|
||
} catch (e) {
|
||
// don't lose exception
|
||
console.error(e)
|
||
}
|
||
}
|
||
} else if (evt.data instanceof ArrayBuffer) {
|
||
// binary messages
|
||
if (networkSpeedMeasurement) networkSpeedMeasurement.add(evt.data.byteLength);
|
||
|
||
var type = new Uint8Array(evt.data, 0, 1)[0];
|
||
var data = evt.data.slice(1);
|
||
|
||
var waterfall_i16;
|
||
var waterfall_f32;
|
||
var i;
|
||
|
||
switch (type) {
|
||
case 1:
|
||
// FFT data
|
||
if (fft_compression === "none") {
|
||
waterfall_add(new Float32Array(data));
|
||
} else if (fft_compression === "adpcm") {
|
||
fft_codec.reset();
|
||
|
||
waterfall_i16 = fft_codec.decode(new Uint8Array(data));
|
||
waterfall_f32 = new Float32Array(waterfall_i16.length - COMPRESS_FFT_PAD_N);
|
||
for (i = 0; i < waterfall_i16.length; i++) waterfall_f32[i] = waterfall_i16[i + COMPRESS_FFT_PAD_N] / 100;
|
||
waterfall_add(waterfall_f32);
|
||
}
|
||
break;
|
||
case 2:
|
||
// audio data
|
||
audioEngine.pushAudio(data);
|
||
break;
|
||
case 3:
|
||
// secondary FFT
|
||
if (fft_compression === "none") {
|
||
secondary_demod_waterfall_add(new Float32Array(data));
|
||
} else if (fft_compression === "adpcm") {
|
||
fft_codec.reset();
|
||
|
||
waterfall_i16 = fft_codec.decode(new Uint8Array(data));
|
||
waterfall_f32 = new Float32Array(waterfall_i16.length - COMPRESS_FFT_PAD_N);
|
||
for (i = 0; i < waterfall_i16.length; i++) waterfall_f32[i] = waterfall_i16[i + COMPRESS_FFT_PAD_N] / 100;
|
||
secondary_demod_waterfall_add(waterfall_f32);
|
||
}
|
||
break;
|
||
case 4:
|
||
// hd audio data
|
||
audioEngine.pushHdAudio(data);
|
||
break;
|
||
default:
|
||
console.warn('unknown type of binary message: ' + type)
|
||
}
|
||
}
|
||
}
|
||
|
||
function waterfall_measure_minmax_do(what) {
|
||
// Get visible range
|
||
var range = get_visible_freq_range();
|
||
var overallStart = center_freq - bandwidth / 2;
|
||
var center = (range.center - overallStart) / bandwidth;
|
||
|
||
// 80% of visible range
|
||
// this is based on an oversampling factor of about 1,25
|
||
var bw = .4 * (range.bw / bandwidth);
|
||
var data = what.slice((center - bw) * what.length, (center + bw) * what.length);
|
||
|
||
return {
|
||
min: Math.min.apply(Math, data),
|
||
max: Math.max.apply(Math, data)
|
||
};
|
||
}
|
||
|
||
function on_ws_opened() {
|
||
$('#openwebrx-error-overlay').hide();
|
||
ws.send("SERVER DE CLIENT client=openwebrx.js type=receiver");
|
||
divlog("WebSocket opened to " + ws.url);
|
||
if (!networkSpeedMeasurement) {
|
||
networkSpeedMeasurement = new Measurement();
|
||
networkSpeedMeasurement.report(60000, 1000, function(rate){
|
||
$('#openwebrx-bar-network-speed').progressbar().setSpeed(rate);
|
||
});
|
||
} else {
|
||
networkSpeedMeasurement.reset();
|
||
}
|
||
reconnect_timeout = false;
|
||
ws.send(JSON.stringify({
|
||
"type": "connectionproperties",
|
||
"params": {
|
||
"output_rate": audioEngine.getOutputRate(),
|
||
"hd_output_rate": audioEngine.getHdOutputRate()
|
||
}
|
||
}));
|
||
}
|
||
|
||
var was_error = 0;
|
||
|
||
function divlog(what, is_error) {
|
||
is_error = !!is_error;
|
||
was_error |= is_error;
|
||
if (is_error) {
|
||
what = "<span class=\"webrx-error\">" + what + "</span>";
|
||
toggle_panel("openwebrx-panel-log", true); //show panel if any error is present
|
||
}
|
||
var logEl = $('#openwebrx-debugdiv')[0];
|
||
if (logEl) logEl.innerHTML += what + "<br />";
|
||
else if (typeof console !== "undefined") console.log("[OpenWebRX] " + (is_error ? "Error: " : "") + what);
|
||
var nano = $('.nano');
|
||
if (nano.length) {
|
||
nano.nanoScroller();
|
||
nano.nanoScroller({scroll: 'bottom'});
|
||
}
|
||
}
|
||
|
||
var volumeBeforeMute = 100.0;
|
||
var mute = false;
|
||
|
||
// Optimalise these if audio lags or is choppy:
|
||
var audio_buffer_maximal_length_sec = 1; //actual number of samples are calculated from sample rate
|
||
|
||
function onAudioStart(apiType){
|
||
divlog('Web Audio API succesfully initialized, using ' + apiType + ' API, sample rate: ' + audioEngine.getSampleRate() + " Hz");
|
||
|
||
hideOverlay();
|
||
|
||
// canvas_container is set after waterfall_init() has been called. we cannot initialize before.
|
||
//if (canvas_container) synchronize_demodulator_init();
|
||
|
||
//hide log panel in a second (if user has not hidden it yet)
|
||
window.setTimeout(function () {
|
||
toggle_panel("openwebrx-panel-log", !!was_error);
|
||
}, 2000);
|
||
|
||
//Synchronise volume with slider
|
||
updateVolume();
|
||
}
|
||
|
||
var reconnect_timeout = false;
|
||
|
||
function on_ws_closed() {
|
||
var demodulatorPanel = $("#openwebrx-panel-receiver").demodulatorPanel();
|
||
demodulatorPanel.stopDemodulator();
|
||
demodulatorPanel.resetInitialParams();
|
||
if (reconnect_timeout) {
|
||
// max value: roundabout 8 and a half minutes
|
||
reconnect_timeout = Math.min(reconnect_timeout * 2, 512000);
|
||
} else {
|
||
// initial value: 1s
|
||
reconnect_timeout = 1000;
|
||
}
|
||
divlog("WebSocket has closed unexpectedly. Attempting to reconnect in " + reconnect_timeout / 1000 + " seconds...", 1);
|
||
|
||
setTimeout(open_websocket, reconnect_timeout);
|
||
}
|
||
|
||
function on_ws_error() {
|
||
divlog("WebSocket error.", 1);
|
||
}
|
||
|
||
var ws;
|
||
|
||
function open_websocket() {
|
||
var protocol = window.location.protocol.match(/https/) ? 'wss' : 'ws';
|
||
|
||
var href = window.location.href;
|
||
var index = href.lastIndexOf('/');
|
||
if (index > 0) {
|
||
href = href.substr(0, index + 1);
|
||
}
|
||
href = href.split("://")[1];
|
||
href = protocol + "://" + href;
|
||
if (!href.endsWith('/')) {
|
||
href += '/';
|
||
}
|
||
var ws_url = href + "ws/";
|
||
|
||
if (!("WebSocket" in window))
|
||
divlog("Your browser does not support WebSocket, which is required for WebRX to run. Please upgrade to a HTML5 compatible browser.");
|
||
ws = new WebSocket(ws_url);
|
||
ws.onopen = on_ws_opened;
|
||
ws.onmessage = on_ws_recv;
|
||
ws.onclose = on_ws_closed;
|
||
ws.binaryType = "arraybuffer";
|
||
window.onbeforeunload = function () { //http://stackoverflow.com/questions/4812686/closing-websocket-correctly-html5-javascript
|
||
ws.onclose = function () {
|
||
};
|
||
ws.close();
|
||
};
|
||
ws.onerror = on_ws_error;
|
||
}
|
||
|
||
function waterfall_mkcolor(db_value, waterfall_colors_arg) {
|
||
waterfall_colors_arg = waterfall_colors_arg || waterfall_colors;
|
||
var value_percent = (db_value - waterfall_min_level) / (waterfall_max_level - waterfall_min_level);
|
||
value_percent = Math.max(0, Math.min(1, value_percent));
|
||
|
||
var scaled = value_percent * (waterfall_colors_arg.length - 1);
|
||
var index = Math.floor(scaled);
|
||
var remain = scaled - index;
|
||
if (remain === 0) return waterfall_colors_arg[index];
|
||
return color_between(waterfall_colors_arg[index], waterfall_colors_arg[index + 1], remain);}
|
||
|
||
function color_between(first, second, percent) {
|
||
return [
|
||
first[0] + percent * (second[0] - first[0]),
|
||
first[1] + percent * (second[1] - first[1]),
|
||
first[2] + percent * (second[2] - first[2])
|
||
];
|
||
}
|
||
|
||
|
||
var canvas_context;
|
||
var canvases = [];
|
||
var canvas_default_height = 200;
|
||
var canvas_container;
|
||
var canvas_actual_line = -1;
|
||
|
||
function add_canvas() {
|
||
if (!canvas_container) return;
|
||
var new_canvas = document.createElement("canvas");
|
||
new_canvas.width = fft_size;
|
||
new_canvas.height = canvas_default_height;
|
||
canvas_actual_line = canvas_default_height;
|
||
new_canvas.openwebrx_top = -canvas_default_height;
|
||
new_canvas.style.transform = 'translate(0, ' + new_canvas.openwebrx_top.toString() + 'px)';
|
||
canvas_context = new_canvas.getContext("2d");
|
||
canvas_container.appendChild(new_canvas);
|
||
canvases.push(new_canvas);
|
||
while (canvas_container && canvas_container.clientHeight + canvas_default_height * 2 < canvases.length * canvas_default_height) {
|
||
var c = canvases.shift();
|
||
if (!c) break;
|
||
canvas_container.removeChild(c);
|
||
}
|
||
}
|
||
|
||
|
||
function init_canvas_container() {
|
||
canvas_container = $("#webrx-canvas-container")[0];
|
||
if (!canvas_container) return;
|
||
canvas_container.addEventListener("mouseleave", canvas_container_mouseleave, false);
|
||
canvas_container.addEventListener("mousemove", canvas_mousemove, false);
|
||
canvas_container.addEventListener("mouseup", canvas_mouseup, false);
|
||
canvas_container.addEventListener("mousedown", canvas_mousedown, false);
|
||
canvas_container.addEventListener("wheel", canvas_mousewheel, false);
|
||
$("#openwebrx-frequency-container").each(function(){
|
||
this.addEventListener("wheel", canvas_mousewheel, false);
|
||
});
|
||
}
|
||
|
||
canvas_maxshift = 0;
|
||
|
||
function shift_canvases() {
|
||
canvases.forEach(function (p) {
|
||
p.style.transform = 'translate(0, ' + (p.openwebrx_top++).toString() + 'px)';
|
||
});
|
||
canvas_maxshift++;
|
||
}
|
||
|
||
function resize_canvases() {
|
||
zoom_calc();
|
||
$('#webrx-canvas-container').css({
|
||
width: waterfallWidth() * get_zoom(zoom_level) + 'px',
|
||
left: zoom_offset_px + "px"
|
||
});
|
||
}
|
||
|
||
function waterfall_init() {
|
||
init_canvas_container();
|
||
if (!canvas_container) return;
|
||
resize_canvases();
|
||
scale_setup();
|
||
waterfall_setup_done = 1;
|
||
}
|
||
|
||
function waterfall_add(data) {
|
||
if (!waterfall_setup_done) return;
|
||
// create new canvas if the current one is full (or there isn't one) – must run before canvas_context check
|
||
if (canvas_actual_line <= 0) add_canvas();
|
||
if (!canvas_context) return;
|
||
var w = fft_size;
|
||
|
||
if (waterfall_measure_minmax_now) {
|
||
var levels = waterfall_measure_minmax_do(data);
|
||
waterfall_measure_minmax_now = false;
|
||
waterfallColorsAuto(levels);
|
||
waterfallColorsContinuousReset();
|
||
}
|
||
|
||
if (waterfall_measure_minmax_continuous) {
|
||
var level = waterfall_measure_minmax_do(data);
|
||
waterfallColorsContinuous(level);
|
||
}
|
||
|
||
//Add line to waterfall image
|
||
var oneline_image = canvas_context.createImageData(w, 1);
|
||
for (var x = 0; x < w; x++) {
|
||
var color = waterfall_mkcolor(data[x]);
|
||
for (i = 0; i < 3; i++) oneline_image.data[x * 4 + i] = color[i];
|
||
oneline_image.data[x * 4 + 3] = 255;
|
||
}
|
||
|
||
//Draw image
|
||
canvas_context.putImageData(oneline_image, 0, --canvas_actual_line);
|
||
shift_canvases();
|
||
}
|
||
|
||
function waterfall_clear() {
|
||
//delete all canvases
|
||
while (canvases.length) {
|
||
var x = canvases.shift();
|
||
x.parentNode.removeChild(x);
|
||
}
|
||
canvas_actual_line = -1;
|
||
}
|
||
|
||
function openwebrx_resize() {
|
||
resize_canvases();
|
||
resize_scale();
|
||
}
|
||
|
||
function initProgressBars() {
|
||
$(".openwebrx-progressbar").each(function(){
|
||
var bar = $(this).progressbar();
|
||
if ('setSampleRate' in bar) {
|
||
bar.setSampleRate(audioEngine.getSampleRate());
|
||
}
|
||
})
|
||
}
|
||
|
||
function audioReporter(stats) {
|
||
if (typeof(stats.buffersize) !== 'undefined') {
|
||
$('#openwebrx-bar-audio-buffer').progressbar().setBuffersize(stats.buffersize);
|
||
}
|
||
|
||
if (typeof(stats.audioByteRate) !== 'undefined') {
|
||
$('#openwebrx-bar-audio-speed').progressbar().setSpeed(stats.audioByteRate * 8);
|
||
}
|
||
|
||
if (typeof(stats.audioRate) !== 'undefined') {
|
||
$('#openwebrx-bar-audio-output').progressbar().setAudioRate(stats.audioRate);
|
||
}
|
||
}
|
||
|
||
var bookmarks;
|
||
var audioEngine;
|
||
|
||
function openwebrx_init() {
|
||
audioEngine = new AudioEngine(audio_buffer_maximal_length_sec, audioReporter);
|
||
var $overlay = $('#openwebrx-autoplay-overlay');
|
||
$overlay.on('click', function(){
|
||
audioEngine.resume();
|
||
});
|
||
audioEngine.onStart(onAudioStart);
|
||
if (!audioEngine.isAllowed()) {
|
||
$('body').append($overlay);
|
||
$overlay.show();
|
||
}
|
||
fft_codec = new ImaAdpcmCodec();
|
||
initProgressBars();
|
||
open_websocket();
|
||
secondary_demod_init();
|
||
digimodes_init();
|
||
initPanels();
|
||
$('#openwebrx-panel-receiver').demodulatorPanel();
|
||
window.addEventListener("resize", openwebrx_resize);
|
||
bookmarks = new BookmarkBar();
|
||
initSliders();
|
||
}
|
||
|
||
function initSliders() {
|
||
$('#openwebrx-panel-receiver').on('wheel', 'input[type=range]', function(ev){
|
||
var $slider = $(this);
|
||
if (!$slider.attr('step')) return;
|
||
var val = Number($slider.val());
|
||
// restore previous high-resolution mouse wheel delta
|
||
var mouseDelta = Number($slider.data('mouseDelta'));
|
||
if (mouseDelta) val += mouseDelta;
|
||
var step = Number($slider.attr('step'));
|
||
var newVal = val + step * -wheelDelta(ev.originalEvent);
|
||
$slider.val(newVal);
|
||
// the calculated value can have a higher resolution than the element can store, so we put the delta into the data attributes
|
||
$slider.data('mouseDelta', newVal - $slider.val());
|
||
$slider.trigger('change');
|
||
});
|
||
|
||
var waterfallAutoButton = $('#openwebrx-waterfall-colors-auto');
|
||
waterfallAutoButton.on('click', function() {
|
||
waterfall_measure_minmax_now=true;
|
||
}).on('contextmenu', function(){
|
||
waterfall_measure_minmax_continuous = !waterfall_measure_minmax_continuous;
|
||
waterfallColorsContinuousReset();
|
||
waterfallAutoButton[waterfall_measure_minmax_continuous ? 'addClass' : 'removeClass']('highlighted');
|
||
$('#openwebrx-waterfall-color-min, #openwebrx-waterfall-color-max').prop('disabled', waterfall_measure_minmax_continuous);
|
||
|
||
return false;
|
||
});
|
||
}
|
||
|
||
function digimodes_init() {
|
||
// initialze DMR timeslot muting
|
||
$('.openwebrx-dmr-timeslot-panel').click(function (e) {
|
||
$(e.currentTarget).toggleClass("muted");
|
||
update_dmr_timeslot_filtering();
|
||
// don't mute when the location icon is clicked
|
||
}).find('.location').click(function(e) {
|
||
e.stopPropagation();
|
||
});
|
||
|
||
$('.openwebrx-meta-panel').metaPanel();
|
||
}
|
||
|
||
function update_dmr_timeslot_filtering() {
|
||
var filter = $('.openwebrx-dmr-timeslot-panel').map(function (index, el) {
|
||
return (!$(el).hasClass("muted")) << index;
|
||
}).toArray().reduce(function (acc, v) {
|
||
return acc | v;
|
||
}, 0);
|
||
$('#openwebrx-panel-receiver').demodulatorPanel().getDemodulator().setDmrFilter(filter);
|
||
}
|
||
|
||
function hideOverlay() {
|
||
var $overlay = $('#openwebrx-autoplay-overlay');
|
||
$overlay.css('opacity', 0);
|
||
$overlay.on('transitionend', function() {
|
||
$overlay.hide();
|
||
});
|
||
}
|
||
|
||
var rt = function (s, n) {
|
||
return s.replace(/[a-zA-Z]/g, function (c) {
|
||
return String.fromCharCode((c <= "Z" ? 90 : 122) >= (c = c.charCodeAt(0) + n) ? c : c - 26);
|
||
});
|
||
};
|
||
|
||
// ========================================================
|
||
// ======================= PANELS =======================
|
||
// ========================================================
|
||
|
||
function panel_displayed(el){
|
||
return !(el.style && el.style.display && el.style.display === 'none') && !(el.movement && el.movement === 'collapse');
|
||
}
|
||
|
||
function toggle_panel(what, on) {
|
||
var item = $('#' + what)[0];
|
||
if (!item) return;
|
||
var displayed = panel_displayed(item);
|
||
if (typeof on !== "undefined" && displayed === on) {
|
||
return;
|
||
}
|
||
if (displayed) {
|
||
item.movement = 'collapse';
|
||
item.style.transform = "perspective(600px) rotateX(90deg)";
|
||
item.style.transitionProperty = 'transform';
|
||
} else {
|
||
item.movement = 'expand';
|
||
item.style.display = null;
|
||
setTimeout(function(){
|
||
item.style.transitionProperty = 'transform';
|
||
item.style.transform = 'perspective(600px) rotateX(0deg)';
|
||
}, 20);
|
||
}
|
||
item.style.transitionDuration = "600ms";
|
||
item.style.transitionDelay = "0ms";
|
||
}
|
||
|
||
function first_show_panel(panel) {
|
||
panel.style.transitionDuration = 0;
|
||
panel.style.transitionDelay = 0;
|
||
var rotx = (Math.random() > 0.5) ? -90 : 90;
|
||
var roty = 0;
|
||
if (Math.random() > 0.5) {
|
||
var rottemp = rotx;
|
||
rotx = roty;
|
||
roty = rottemp;
|
||
}
|
||
if (rotx !== 0 && Math.random() > 0.5) rotx = 270;
|
||
panel.style.transform = "perspective(600px) rotateX(%1deg) rotateY(%2deg)"
|
||
.replace("%1", rotx.toString()).replace("%2", roty.toString());
|
||
window.setTimeout(function () {
|
||
panel.style.transitionDuration = "600ms";
|
||
panel.style.transitionDelay = (Math.floor(Math.random() * 500)).toString() + "ms";
|
||
panel.style.transform = "perspective(600px) rotateX(0deg) rotateY(0deg)";
|
||
}, 1);
|
||
}
|
||
|
||
function initPanels() {
|
||
$('#openwebrx-panels-container').find('.openwebrx-panel').each(function(){
|
||
var el = this;
|
||
el.openwebrxPanelTransparent = (!!el.dataset.panelTransparent);
|
||
el.addEventListener('transitionend', function(ev){
|
||
if (ev.target !== el) return;
|
||
el.style.transitionDuration = null;
|
||
el.style.transitionDelay = null;
|
||
el.style.transitionProperty = null;
|
||
if (el.movement && el.movement === 'collapse') {
|
||
el.style.display = 'none';
|
||
}
|
||
delete el.movement;
|
||
});
|
||
if (panel_displayed(el)) first_show_panel(el);
|
||
});
|
||
}
|
||
|
||
/*
|
||
_____ _ _ _
|
||
| __ \(_) (_) | |
|
||
| | | |_ __ _ _ _ __ ___ ___ __| | ___ ___
|
||
| | | | |/ _` | | '_ ` _ \ / _ \ / _` |/ _ \/ __|
|
||
| |__| | | (_| | | | | | | | (_) | (_| | __/\__ \
|
||
|_____/|_|\__, |_|_| |_| |_|\___/ \__,_|\___||___/
|
||
__/ |
|
||
|___/
|
||
*/
|
||
|
||
var secondary_demod_fft_offset_db = 18; //need to calculate that later
|
||
var secondary_demod_canvases_initialized = false;
|
||
var secondary_demod_channel_freq = 1000;
|
||
var secondary_demod_waiting_for_set = false;
|
||
var secondary_demod_low_cut;
|
||
var secondary_demod_high_cut;
|
||
var secondary_demod_mousedown = false;
|
||
var secondary_demod_canvas_width;
|
||
var secondary_demod_canvas_left;
|
||
var secondary_demod_canvas_container;
|
||
var secondary_demod_current_canvas_actual_line;
|
||
var secondary_demod_current_canvas_context;
|
||
var secondary_demod_current_canvas_index;
|
||
var secondary_demod_canvases;
|
||
var secondary_bw = 31.25;
|
||
var if_samp_rate;
|
||
|
||
function secondary_demod_create_canvas() {
|
||
var new_canvas = document.createElement("canvas");
|
||
new_canvas.width = secondary_fft_size;
|
||
new_canvas.height = $(secondary_demod_canvas_container).height();
|
||
new_canvas.style.width = $(secondary_demod_canvas_container).width() + "px";
|
||
new_canvas.style.height = $(secondary_demod_canvas_container).height() + "px";
|
||
secondary_demod_current_canvas_actual_line = new_canvas.height - 1;
|
||
$(secondary_demod_canvas_container).children().last().before(new_canvas);
|
||
return new_canvas;
|
||
}
|
||
|
||
function secondary_demod_remove_canvases() {
|
||
$(secondary_demod_canvas_container).children("canvas").remove();
|
||
}
|
||
|
||
function secondary_demod_init_canvases() {
|
||
secondary_demod_remove_canvases();
|
||
secondary_demod_canvases = [];
|
||
secondary_demod_canvases.push(secondary_demod_create_canvas());
|
||
secondary_demod_canvases.push(secondary_demod_create_canvas());
|
||
secondary_demod_canvases[0].openwebrx_top = -$(secondary_demod_canvas_container).height();
|
||
secondary_demod_canvases[1].openwebrx_top = 0;
|
||
secondary_demod_canvases_update_top();
|
||
secondary_demod_current_canvas_context = secondary_demod_canvases[0].getContext("2d");
|
||
secondary_demod_current_canvas_actual_line = $(secondary_demod_canvas_container).height() - 1;
|
||
secondary_demod_current_canvas_index = 0;
|
||
secondary_demod_canvases_initialized = true;
|
||
mkscale(); //so that the secondary waterfall zoom level will be initialized
|
||
}
|
||
|
||
function secondary_demod_canvases_update_top() {
|
||
for (var i = 0; i < 2; i++) {
|
||
secondary_demod_canvases[i].style.transform = 'translate(0, ' + secondary_demod_canvases[i].openwebrx_top + 'px)';
|
||
}
|
||
}
|
||
|
||
function secondary_demod_swap_canvases() {
|
||
secondary_demod_canvases[0 + !secondary_demod_current_canvas_index].openwebrx_top -= $(secondary_demod_canvas_container).height() * 2;
|
||
secondary_demod_current_canvas_index = 0 + !secondary_demod_current_canvas_index;
|
||
secondary_demod_current_canvas_context = secondary_demod_canvases[secondary_demod_current_canvas_index].getContext("2d");
|
||
secondary_demod_current_canvas_actual_line = $(secondary_demod_canvas_container).height() - 1;
|
||
}
|
||
|
||
function secondary_demod_init() {
|
||
secondary_demod_canvas_container = $("#openwebrx-digimode-canvas-container")[0];
|
||
$(secondary_demod_canvas_container)
|
||
.mousemove(secondary_demod_canvas_container_mousemove)
|
||
.mouseup(secondary_demod_canvas_container_mouseup)
|
||
.mousedown(secondary_demod_canvas_container_mousedown)
|
||
.mouseenter(secondary_demod_canvas_container_mousein)
|
||
.mouseleave(secondary_demod_canvas_container_mouseleave);
|
||
['wsjt', 'packet', 'pocsag', 'adsb', 'ism', 'hfdl'].forEach(function(id){
|
||
$('#openwebrx-panel-' + id + '-message')[id + 'MessagePanel']();
|
||
})
|
||
$('#openwebrx-panel-js8-message').js8();
|
||
}
|
||
|
||
function secondary_demod_push_data(x) {
|
||
x = Array.from(x).filter(function (y) {
|
||
var c = y.charCodeAt(0);
|
||
return (c === 10 || (c >= 32 && c <= 126));
|
||
}).map(function (y) {
|
||
if (y === "&")
|
||
return "&";
|
||
if (y === "<") return "<";
|
||
if (y === ">") return ">";
|
||
if (y === " ") return " ";
|
||
if (y === "\n") return "<br />";
|
||
return y;
|
||
}).join("");
|
||
$("#openwebrx-cursor-blink").before(x);
|
||
}
|
||
|
||
function secondary_demod_waterfall_add(data) {
|
||
var w = secondary_fft_size;
|
||
|
||
//Add line to waterfall image
|
||
var oneline_image = secondary_demod_current_canvas_context.createImageData(w, 1);
|
||
for (var x = 0; x < w; x++) {
|
||
var color = waterfall_mkcolor(data[x] + secondary_demod_fft_offset_db);
|
||
for (var i = 0; i < 3; i++) oneline_image.data[x * 4 + i] = color[i];
|
||
oneline_image.data[x * 4 + 3] = 255;
|
||
}
|
||
|
||
//Draw image
|
||
secondary_demod_current_canvas_context.putImageData(oneline_image, 0, secondary_demod_current_canvas_actual_line--);
|
||
secondary_demod_canvases.map(function (x) {
|
||
x.openwebrx_top += 1;
|
||
})
|
||
;
|
||
secondary_demod_canvases_update_top();
|
||
if (secondary_demod_current_canvas_actual_line < 0) secondary_demod_swap_canvases();
|
||
}
|
||
|
||
function secondary_demod_update_marker() {
|
||
var width = Math.max((secondary_bw / if_samp_rate) * secondary_demod_canvas_width, 5);
|
||
var center_at = ((secondary_demod_channel_freq - secondary_demod_low_cut) / if_samp_rate) * secondary_demod_canvas_width;
|
||
var left = center_at - width / 2;
|
||
$("#openwebrx-digimode-select-channel").width(width).css("left", left + "px")
|
||
}
|
||
|
||
function secondary_demod_update_channel_freq_from_event(evt) {
|
||
if (typeof evt !== "undefined") {
|
||
var relativeX = (evt.offsetX) ? evt.offsetX : evt.layerX;
|
||
secondary_demod_channel_freq = secondary_demod_low_cut +
|
||
(relativeX / $(secondary_demod_canvas_container).width()) * (secondary_demod_high_cut - secondary_demod_low_cut);
|
||
}
|
||
if (!secondary_demod_waiting_for_set) {
|
||
secondary_demod_waiting_for_set = true;
|
||
window.setTimeout(function () {
|
||
$('#openwebrx-panel-receiver').demodulatorPanel().getDemodulator().set_secondary_offset_freq(Math.floor(secondary_demod_channel_freq));
|
||
secondary_demod_waiting_for_set = false;
|
||
},
|
||
50
|
||
)
|
||
;
|
||
}
|
||
secondary_demod_update_marker();
|
||
}
|
||
|
||
function secondary_demod_canvas_container_mousein() {
|
||
$("#openwebrx-digimode-select-channel").css("opacity", "0.7"); //.css("border-width", "1px");
|
||
}
|
||
|
||
function secondary_demod_canvas_container_mouseleave() {
|
||
$("#openwebrx-digimode-select-channel").css("opacity", "0");
|
||
}
|
||
|
||
function secondary_demod_canvas_container_mousemove(evt) {
|
||
if (secondary_demod_mousedown) secondary_demod_update_channel_freq_from_event(evt);
|
||
}
|
||
|
||
function secondary_demod_canvas_container_mousedown(evt) {
|
||
if (evt.which === 1) secondary_demod_mousedown = true;
|
||
}
|
||
|
||
function secondary_demod_canvas_container_mouseup(evt) {
|
||
if (evt.which === 1) secondary_demod_mousedown = false;
|
||
secondary_demod_update_channel_freq_from_event(evt);
|
||
}
|
||
|
||
|
||
function secondary_demod_waterfall_set_zoom(low_cut, high_cut) {
|
||
if (!secondary_demod_canvases_initialized) return;
|
||
secondary_demod_low_cut = low_cut;
|
||
secondary_demod_high_cut = high_cut;
|
||
var shown_bw = high_cut - low_cut;
|
||
secondary_demod_canvas_width = $(secondary_demod_canvas_container).width() * (if_samp_rate) / shown_bw;
|
||
secondary_demod_canvas_left = (-secondary_demod_canvas_width / 2) - (low_cut / if_samp_rate) * secondary_demod_canvas_width;
|
||
secondary_demod_canvases.map(function (x) {
|
||
$(x).css({
|
||
left: secondary_demod_canvas_left + "px",
|
||
width: secondary_demod_canvas_width + "px"
|
||
});
|
||
});
|
||
secondary_demod_update_channel_freq_from_event();
|
||
}
|
||
|
||
function sdr_profile_changed() {
|
||
var value = $('#openwebrx-sdr-profiles-listbox').val();
|
||
ws.send(JSON.stringify({type: "selectprofile", params: {profile: value}}));
|
||
}
|