[PD] libpd: pdengine->openPatch() leads to Thread 1: EXC_BAD_ACCESS (code=1, address=0x28)

Matti Viljamaa mviljamaa at kapsi.fi
Fri Feb 19 06:16:45 CET 2016


The specific line in libpd is:

int canvas_suspend_dsp(void)
{
    int rval = pd_this->pd_dspstate; <- This one gives the EXC_BAD_ACCESS
    if (rval) canvas_stop_dsp();
    return (rval);
}

in pure-data/src/g_canvas.c


> On 19 Feb 2016, at 06:55, Matti Viljamaa <mviljamaa at kapsi.fi> wrote:
> 
> I’m trying to test libpd out by merely having it read a patch with [osc~ 440] -> [dac~]
> 
> I’m currently doing:
> 
> 	pdengine = new pd::PdBase();
>   
> 	pdengine->init (/*NInChannels()*/ 0, 2, GetSampleRate());
> 
> 	patch = pdengine->openPatch("testpatches/sine.pd", ".");
> 
> 	// audio processing on
> 	pdengine->computeAudio(true);
> 
> and so on.
> 
> The line:
> 
> 	patch = pdengine->openPatch("testpatches/sine.pd", ".");
> 
> gives
> 
> Thread 1: EXC_BAD_ACCESS (code=1, address=0x28) on pdengine->openPatch()
> 
> the testpatches folder exists at “." and contains sine.pd.
> 
> What’s wrong?
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