LAF gives me performance degradation over time.

[Mighty23]

I am customizing an Oscilloscope connected by Scriptnode. When I start HISE I have no problems but as time passes the plugin testing becomes more difficult as it slows down visibly. I think I am doing something wrong in the memory management; I am using persistence buffers to draw customizations of the oscilloscope.

const var dp = Synth.getDisplayBufferSource("HardcodedMasterFX1");
const var rb = dp.getDisplayBuffer(0);
const var BUFFER_LENGTH = 512;
const var properties = {
    "BufferLength": BUFFER_LENGTH,
    "NumChannels": 1
};
rb.setRingBufferProperties(properties);
const var P1 = Content.getComponent("P1");

// Buffer for persistence effect
const var persistenceBuffers = [];
const var NUM_PERSISTENCE_BUFFERS = 3;

// Initialize persistence buffers with default paths
for (var i = 0; i < NUM_PERSISTENCE_BUFFERS; i++) {
    persistenceBuffers.push(rb.createPath(P1.getLocalBounds(0), [0, BUFFER_LENGTH, -1.0, 1.0], 0.0));
}

// Initialize currentBuffer with a default path
P1.data.currentBuffer = rb.createPath(P1.getLocalBounds(0), [0, BUFFER_LENGTH, -1.0, 1.0], 0.0);

P1.setTimerCallback(function() {
    // Update the currentBuffer path with the latest audio data
    this.data.currentBuffer = rb.createPath(this.getLocalBounds(0), [0, BUFFER_LENGTH, -1.0, 1.0], 0.0);

    // Update persistence buffers
    persistenceBuffers.insert(0, this.data.currentBuffer);
    if (persistenceBuffers.length > NUM_PERSISTENCE_BUFFERS) {
        persistenceBuffers.remove(NUM_PERSISTENCE_BUFFERS);
    }
    
    // Clear unused buffers to free memory
    for (var i = NUM_PERSISTENCE_BUFFERS; i < persistenceBuffers.length; i++) {
        persistenceBuffers.remove(i);
    }

    this.repaint(); // Trigger repaint to update the UI
});

P1.startTimer(30); 

P1.setPaintRoutine(function(g) {
    var area = this.getLocalBounds(0);

    // Fill background with black
    g.fillAll(0xFF000000);

    // Draw persistence buffers with gradually decreasing opacity
    for (var i = 0; i < persistenceBuffers.length; i++) {
        var opacity = 0.3 - (i * 0.025);
        g.setColour(Colours.withAlpha(0x00FFFF, opacity));
        g.drawPath(persistenceBuffers[i], area, 1);
    }

    // Check if currentBuffer is defined before drawing
    if (this.data.currentBuffer) {
        // Draw current buffer with a glow effect
        g.setColour(0xFF00FFFF);

        g.setOpacity(0.3);
        g.drawPath(this.data.currentBuffer, area, 3); // Glow effect with wider stroke

        g.setOpacity(0.6);
        g.drawPath(this.data.currentBuffer, area, 2); // Medium stroke for glow

        g.setOpacity(1.0);
        g.drawPath(this.data.currentBuffer, area, 1); // Main path drawing with normal stroke
    }
});

HiseSnippet 2196.3oc2Y01aaabGmJ1LsVscXsncau7PvdAypqpjcS5vx5peRJwXw1BVNtEHnv3L4IoClhGG4Q6n0Ef8x8waXeB1Gg8MX62+6HEIskRcDRa1ldgr3c+e94+z8ST9hzTUhSi0NYZrvow66NXZjd7ti4xHm82yowOy8.dpVjvrGsyzXdZpHvoQiUdLcPi0V0w74e806vC4Q9hxibbNUI8EOUNQpKOs+V+QYXXOdf3D4jJP+EasuuJZWUnJCxyJtsch49WvGINjSfcGWmF2safTqRFn4ZQJfYGUvzAiUWEYg+TYp77PA8PGmAfP1ic1crLLnegtl53zvseoluhUy+X2CjAxYmWZA94lKXkXT0Fz3NuJQpyqgH0nhHspUj9P2A9IxXc4Mj77dt6GAGxPNL0UEEKrN24ezzcWEfHR2ZB+BQuD7vLL7dX61qyvW2+QM+7OmcTpO7EpTeUrfMTkvdx9C51DtgTM6RdBKHl8ULSDQqQB8dxz3P9zcxFNTjL.tIPu6YYKq2214dflknlbNPMH9F340tFX67rd85d7YOs6gO9jm.LdPmMpdcbBjrDsTjh699lL74dV57TQzH83686pSg0sfbX1D3.ihDgo.hNMe4iZlbdqTg9XYzHK98mQYuRlTSz52A7rvTB0XW0jXUDdv6d8MJKYAsDyX6.MRkHWA4.LAN0WWUQJuzhBoPO+6pxuCe1Am0u6wC1evIcOb2tmYUrA.tMs7Z+HoVxCk+YQMdcdN8tRpGyBDC4YgZVLWONsIIVdDskfJseD9yueQrAW9oe58ysw2TZaEmkN1CFQ+DAB06Cx60uCYVdpxmGtiJKJHE910YOGAX08IrOqSKbH956Vm0tU66Ca2KutF4mkj.aat8znK7ZZSSvt.tl2pNjeE6MjPAaLvEwHTYojc4ggmi5OdCyh70RUjWgsAh8yhgfHX5wWWrI4zJ6zcgTMAMimEHULRzM3qGKSuMJhAtkVUpKoyIbYQ9YYTJxE7.8VffBpSnJGx7lC5glzR1eXQgYEVwEv8DwD0kBuEgrk0uz7cgJtan.A3YQYnN3rbAshMLQHXS.8RlZ.sVtvhSBPFxBUqZ4HuZMPNSVKc5IhXzTQ6c+GQx8IIxQifeO+TRjyJiqd19MeYdIFzaIQaNTSQlE4FHRIUEwQ2EljJueIOjnw41tvjnAMdh427n..dJpdkJuTDgdIlPchtlfcuMamKSPLYHEH0vNU0tC4xFrp+oLnuSIdwSnvR1laZjrThm.aTQKnHWpOoZGqxzxHQYpznBaH4N3PQfGY9g6kQx8fnvnLxQVlZrBmGhCLPLp0P.v1ggdseQudsMepf8dI7qVbQyQI7fLjvOEEbnLvTzkfov3GR8bhcZ+5FkPHlSMB8Vax9Llmj8anb0MdPdfhUIRo1LzDPd1+j1hDvsCiGygh0tcO7Y8Bhc+ZnF.UzT33lB1yknv.YmQQh5wkT9yXg+ET5b8xQHP.UegaCIUBn+BFw.XXlk8un5CUz7BKeN.4V8hH3QgpqJ5TNOSf0SRpbgmbFDGYs.dvXNeivBDtByvl138GWJAVg5JY.ECqSTWHVHKe3RwxMrr7.QfLaRNKLAVjYXA7pioX9qOu5jyKj8Y6Ik66rJYDUWHrPKsQCTwlh7SlJ5PkVbD54076atF5Uyt9UCGN26nokRTggnjx7t1Vr4UfnWT1jyI0.EyxDy.DSDWeL66d6Fy12N7VE.UQzHGGEKxetmJLfFel98MGJ2Ie5O7qms+dvZSyomeV47i3r8DWhEcrSsul6dhzKzpXCr4iLBQVat8CJlomigScjf0q51uiyKlsGze84aMs7gS2BQj5wXikF+kFNNiExQi0zSAlUotwJCXYEUPFF7n9FLzpZ4W.6cs0FnUCPaA8zpqx8ZrVS6W4ZM2VQ7Cc6K09imuLdm4HivS7igLluL3G310TTnT.W0s22tra9091u42cs7uYdTB3Iw722sbKqZBA1yYaZ5RzbjjA2FHFwAGVaiqYWjugXi+laYpWLM9Qh3DUe.uWJeRbn3XnQqidqJ+KFfQyuY9ZrUf2gfvyOeQqkIs9tug1d1wNhwnC35DIxkbgMvtfZwZfjM3NTFs841zyTTz.QTf4g+M9jeYmYFLbYmhKqTL3Pg9JUxEFmW9ucZ7NVOUpwHe1vW.wmZDiP4FuiK5z2psCFOQcEUSPlGjCWn4r9pvowiUQRe5HKDEh91Sv7N5B4+I7zS3xPJqXPVJpiEbTz..r4EuPQkGpBvub6w8ggcJ0rfxtnJgHTVjzxeVHcMYsLphrvDQJdSLV6DjoIl5Xz6gYE5dq1a4l8MEUcdQmZBvuvkGwCmlJZUClZgx+.rrR8VyUHN8EEkjuV390OwgpfDHdQAg6hfw.T12fNQcm97D9DgVXKGT6gJr0joROMknnwBte5ozsXjUmSoXaxu3riRcwDtI9Xo5aTsfzmXu78b+F9kByahw369Dyyz.9rGiA5SnpocdEuct+9s8syEeqe6bG4qgHbRBOBKVjJ5TkxW6tMpd2dBcVTcvsGUCJR85A0qBbu6VEGtQ0CQmzZDCOWiRGHKat57O+5tlUlFX1Rw95uHaW0le8yBSEeC01sSUDKOdipG+DdR.7K90ZMsR85Zqd6pqUuKcE3mSSi69V3MX9loU+awoQp0pcsBYbfjJlzM5RQHUThjwOB4hl27Two0ysNPEoJJWW50OVnsqzWU1mqBssVi8VKO4i25XQHV6rR91udqmhx07jCLEXWJawq+Kbdt9qekqUbYTAA1+6NE4J+e8Tj29rOTO7+t8h+RWTWdClwUxd63K+oXbxeJ3wDteh5Le6T3TR+6ZNA5cj4ep1ZtGPOy53boc5kRi4Dzx3Le+5j5FHtwxh3lKKhewxh3CVVDe3xh3WtrH9a+gQj5nuclVMwlafwb520NOaC6DNlzDm+Cf0CqX3

[clevername27]

@Mighty23 (If I understand your question) why wouldn't you simply preallocate the buffers, and let them be? (Why do garbage collection?)

[Mighty23]

@clevername27 Thanks for the explanation. Your comment on the post helped me solve the memory management. Thanks again.