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Dec 2, 2010 at 2:12am
Graham Wakefield's C++ template question
Hi there:
I’m attempting to understand Graham Wakefield’s C++ template for developing externals, but I’m stuck on the “perform” method defined in the sample MSP object.
// signal processing example: inverts sign of inputs
void perform(int vs, t_sample ** inputs, t_sample ** outputs) {
for (int channel = 0; channel < 2; channel++) {
t_sample * in = inputs[channel];
t_sample * out = outputs[channel];
for (int i=0; i
The other methods provided, test and bang, are bound to text symbols in by the use of REGISTER_METHOD(Example, bang) and REGISTER_METHOD_GIMME(Example, test), but perform is not. In order to use this function, should I somehow "register" it first? Attempts at adding REGISTER_METHOD_GIMME(Example, perform), REGISTER_METHOD_FLOAT(Example, perform), etc. to main() are not working out.
I'm getting two errors
1. could not convert template argument '&Example::perform' to 'void (Example::*)(long int, t_symbol*, long int, t_atom*)'
2. 'call' is not a member of ''
Source code for template is at
http://code.google.com/p/maxcpp/
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Dec 2, 2010 at 1:34pm
no, just implement it:
#include “maxcpp5.h”
class myob : public MspCpp5
{
private:
public:
myob(t_symbol * sym, long ac, t_atom * av)
{
setupIO(&myob::perform, 1, 1);
}
~myob()
{
}
// methods:
void bang(long inlet)
{
}
void dsp() {}
void perform(int vs, t_sample ** inputs, t_sample ** outputs)
{
t_sample * triggerIn = inputs[0];
t_sample * out = outputs[0];
// do stuff to samples
}
};
extern “C” int main(void)
{
myob::makeMaxClass(“myob~”);
REGISTER_METHOD(myob, bang);
}
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