External display buffers visualization crash

[ustk]

@Matt_SF Well it's not crashing here.
Last develop commit? Mine's dating from 5 days ago... 9580e1bc3ddd30f85e6dc77d5593e41ebee9d359

[Matt_SF]

@ustk that's odd. I was on the commit from July 10th and I just build the latest commit today...
I'll clean everything manually and rebuild it again

Edit: @d-healey No David, I have only one HISE source folder on my computer

[Matt_SF]

Nope, still no luck. I even checked the JUCE folder in the projucer...

The weird thing is that it works when I load the project but crashes as soon as I hit 'Compile' again...

(And now, the snippet browser is also crashing with the latest commit :face_with_tears_of_joy:
Something related to the new CSS additions)

[Matt_SF]

OK I built the latest Master branch but it still crashes...
@Christoph-Hart Maybe you'l have an idea about this

Oddly it used to work before...

[ustk]

@Matt_SF Have you tried the commit I pointed?
Do you delete the binary folder before building?

[Matt_SF]

@ustk Yes and yes, but it still crashes... It must be something on my machine then but I don't know what could cause this. I haven't made any modifications in the source code...
I'll try to dig in...

[Matt_SF]

I even deleted my HISE folder and re-cloned it from Christoph's repo but it's still not working...
Oddly, if I increase the timer, it doesn't crash (above 300ms)...

[ustk]

@Matt_SF Strange indeed... Have you tried a new minimal project from scratch? Maybe this one is corrupted somehow... Though I wouldn't understand why it doesn't crash above 300ms...
No error code in the console?
If you run a debug in your IDE, what does the crash report say?

[Matt_SF]

@ustk I recreated a minial project but the crash still happens.
I'm also puzzled by the timer thing...

What the IDE outputs :
1 - actually I made a mistake in my OP, there's a debug breakpoint in

HISE Debug.exe!hise::HiseJavascriptEngine::RootObject::ConstReference::isConstant() Ligne 88
HISE\hi_scripting\scripting\engine\JavascriptEngineExpressions.cpp(88)

bool isConstant() const override
{
    jassert(ns != nullptr); 
    auto v = ns->constObjects.getValueAt(index); // << BREAKPOINT

    // objects and arrays are not constant...
    return !v.isArray() && !v.isObject();
}

2 - 'Read access violation' in

HISE Debug.exe!juce::ArrayBase<juce::NamedValueSet::NamedValue,juce::DummyCriticalSection>::size() Ligne 201
HISE\JUCE\modules\juce_core\containers\juce_ArrayBase.h(201)

inline int size() const noexcept
 {
        return numUsed;
}

[ustk]

@Matt_SF Strangely when opening your snippet, the global cable not is not there (probably something wrong in the xml)
Have you tried a very minimal snippet without a global cable?

[Matt_SF]

@ustk yes it isn't displayed in the snippet example (coming from the examples repo), but the cable method works fine.
I tried indeed without the cable.

I'm actually working on a drums plugin, that's why it's more convenient to use the buffer solution because I can dynamically change the buffer source, which is not possible to do when using global cables.

[ustk]

@Matt_SF please try this snippet, I'd like to check if your huge buffer length can be problematic in the present case.

HiseSnippet 1571.3ocuX8taaaCDmJILs1McXEqO.B4SJ.dtVNooIaXXt4OtyXMoFwoACqnHiQh1lvRjZRzM1anC6i6wZOR6MX6HojkTRbah2V8GRL4c7te2w69cLoarviljHhQVUNcZDEYsFt2Ttb39CILNpyAHqUwRZhDs2zHRRB0GYYs7KTxrprBR+4u918HADtGMeKD5LAyi9RVHSlua2VeOKHnMwmdJKrf1a0pimfuuHPLFvwx3FnHh2Hx.5wDkZKgAPbnOSJh6II.XPVqrmveZughK4F8OikvtHfpV3h5AFxrcaQfuBwpcQ6OjE32MKdSPfU5lG8Kah9GiOh4ylsedV3y0BryOQw7g0Rkg2xkfmaQ30n.7tAHYU.RqXfziv87hYQxbIJ77.bGtjF2m.o8hPwnKZoeaY79BPCtrdHYDscLrX1Ib1tQiZ1vO13qqVER8IR62Qhs8YIQAjo6MteeZbO3xviZ+M15xg5CnxCttXm0M9yt8O3tNXrB15hFvYuAKdMK4bETr2qa29vSNuWme7PvBtM2AjBVqdBUdBiOvbHHYDQikLZhS0esZk0M69RJefb35eUQaTCjd73P3ljyoAIfP2puW4wh9rKAj4BtKKmAfbeQXjfCKbV2HVEfUMeUAltPog7DwXIiSc5Ol6IYBtyfMT3YfRASAsi4WI0IbI6mGSubHSRAKUoZEVeaGVxAz9fE7cjCYI08IRR8K1XipU.a3GStrKQNrnnZ15E.9doviDrmXL2OARg0rcqqRjogVNLUsZw6SBBt.5oxwoFlErq5xBRxdwTnDN2o2fedxSrIfV.BMereCTKULga2PCl2pU8MSNOQRhk0rmbNk6Wyd54gLt9WjIuM2H1MzvuRJnhoQpzqSVDkEOJSoiHmMUpmEN1B9wBI8UowU02W09ph52+FkotviEAAfEuIwFe8ANnCeb3Ez3ZPYTvX5LEgt2xTB34SITjwxyT+UPQAuCmIeUDkOOdLTZQK7sW24.31TwijtWdeBr2Az2AjxFVkJ3CnIijhHstoU5.OqTK8gYbNpzNhALK2GatBPSlwa+6uo0zYK9yKZcIyWNb1F1wsFRYCFly+25mZgtN8FPrJ7GGPjkYaUiXRE.46RTbJZLdBSNs3Hn+ynfusP7Q3tLo2vaFiKcCXDtU9+.ioCtdH9PfAzSlCvUvs+gOASovF+WMshA7ox4qgyGLTBD.UbI1eUqgkEDRoCtr9CbdWVjhFHldpnKnuSBILJfdB.9Z1WDH7F0i8Kzq2ZFYv1dJMb7Ro8WjN3Uu0oK2O7skYHwfiHxXFz9fgbfYVX1PIUNXIUirYcC0ZUASOfwTu3ugOoBcmkv.gtYBKvAbLUdoHdj9dJ86Hq6YtTRzI4y6OAfOj6UUsV2CCTu0afddPf3REU.KsdFtsz60UDLMZnfy7TaYzHC5OODFLHyv+2QRNkvBTM.8Fm.TV9uh2CTV+1Pn.z5XgO7MbahGjXmpFynZjTjdPUKMtt2rp2RXMu.RkgUFI6whl7DfoPM8k5ohKqjahdi2TlqJNT3ardIm+3BNelFKl6Vtf6VCKR7f25pnLPWKZio0KH9t4MU5OfNIil+J8RWcGXcGtOchhM3KgYGcIwvSpkFUWc1JvUGw3mop+guppGPGQlLa8Vv5dRZjpeSsFFtm9WFbjJjKcNTAitZtQ+BbSPp9Syc2oQyMa1rfKp.RgOkbyiAy4ZNQC2s1sgq61Pa1H5klzoQglM2c2Fa8zsa1bys14Y67zzmF2NlBuzh6MMCa5AmyKbcKEtqhc2dNw6ZZCaehp8.U53naapzctoxW.rLy2nq7wLpxH2C2cHI4Cbgbqrxp5YuWEJ4ui.gJTnWAmvFzD5bJWk+Y3P320yjcmJwWpTQp0cOIX15JIg4f+UwQTxnxf+AlVTsf6DxWYQaN0yMJF1kwa9aLNkDCuHWqv7zVObVsBd5wRlp1NImojBOiOKq.r0+qMvh7VyOIiBCIdwhy8LS2UAz806.oYt9+mPE7Qp01tn2kR+L6EZgvei+4ddkM00NXyE8fatnGbqE8fOcQO31K5Ae1hdvc93GT8uf44ikhPyCTfNitGpKBsrNjSfGioehI5e.jgizrK

[Matt_SF]

@ustk Thanks. Same thing : it loads fine, and the buffer is displayed, but when I hit 'Compile' - without changing anything in the script - it crashes HISE.

[Matt_SF]

Bibidi babidi bump !

@Christoph-Hart could you take a look at this if you have a moment please?
Just tell me if there is indeed something to be fixed, or if I need another tee-shirt

[Matt_SF]

Ok, if someone hits the same issue, I might have found a solution for this. I don't know if that's the proper way of handling it, but it seems to be working ok.

I chaned this bit, and replaced the assertion:

bool isConstant() const override
{
    jassert(ns != nullptr); 
    auto v = ns->constObjects.getValueAt(index);

    // objects and arrays are not constant...
    return !v.isArray() && !v.isObject();
}

by this :

bool isConstant() const override
{
    if (ns == nullptr)
        return false;    
        
    auto v = ns->constObjects.getValueAt(index);

    // objects and arrays are not constant...
    return !v.isArray() && !v.isObject();
}