<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div><span>What's your setup routine for the external look like?</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal; background-color: transparent;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-style: normal; background-color: transparent;"><span>-Jonathan</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12pt;"> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> On Sunday, May 25, 2014 2:14 PM, Alexandros Drymonitis <adrcki@gmail.com> wrote:<br> </font> </div> <br><br> <div class="y_msg_container"><div id="yiv0532595643"><div dir="ltr"><div><div><div><div><div><div><div><div><div><div>I'm building an external (my very first one) and it's working as expected, only the arguments I type when I create it are not passed and the variables set to get values from these arguments are set to zero.<br>
<br></div>The new instance routine prototype is this:<br></div>void *tabPowSine_new(t_symbol *s, short argc, t_atom argv)<br><br></div>and in this routine I type the following two lines:<br></div>if(argc >= 1) { x->x_frequency = atom_getfloatarg(0, argc, argv); }<br>
</div>if(argc >= 2) { x->x_power = atom_getfloatarg(1, argc, argv); }<br><br></div>but if I create an object like this [tabPowSine~ 220 0.5], the variables x_frequency and x_power (declared in the object structure) won't get these values. As soon as I send a signal or float to the respective inlet, everything works fine.<br>
</div><div><br></div>Also, I get a warning when I type "make" in the terminal, to make the Pd object, which is:<br>tabPowSine~.c:60:32: warning: unused parameter 's' [-Wunused-parameter]<br><br></div>Can I just ommint the t_symbol *s?<br>
</div>I'm following Eric Lyon's book for writing externals, and he's passing this symbol pointer (it is a symbol pointer, right?) to the new instance routine...<br><br></div>Final question, so that I don't send three different emails, is it preferable to use a table lookup cosine oscillator than using the cos function in the perform routine? Is there significant difference in the CPU consumption?<br>
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