Hi Christof,
the problem is that I don’t really know what happens but it goes something like that:
calling pd_init -> pd_init_systems -> conf_init -> x_connective_setup -> pdint_setup
and then in function class_new vp is empty so while (*vp) doesn’t go through it and after exiting class_new the microcontroller stops with a hard error. So maybe the question is really - should the vp be empty and if not - why is that happening?
B.
On 21 Mar 2020, at 13:58, Christof Ressi info@christofressi.com wrote:
Hi,
The code compiles but I get the error when running in the pdint_setup where pdint_new in class_new breaks with an error. My idea is to first try to understand the code hence my question:
I think first you should post the error you get ;-) Maybe the problem is trivially solved without having to look at code for class_new() at all.
What does class_new do?
It creates a new Pd class (t_pd). The class contains all the methods and some metadata. It also registers a creator function in pd_objectmaker, which is the factory object for all classes.
When you type "[foo 0]" you really send a message "obj <x> <y> foo 0" to the canvas, which in turn sends a message "foo 0" to pd_objectmaker, which finally returns a newly created instance (given that it can find a creator method for "foo").
But again, I think the problem is likely trivial and those implementation details shouldn't concern you, unless you want to learn about Pd internals, of course :-)
Christof
On 21.03.2020 13:20, Boštjan Jerko wrote:
Hi,
I’m trying to port libpd to stm32. I don’t need gui so working only on connecting pd script to the output (which is DAC from stm32 in my case). The code compiles but I get the error when running in the pdint_setup where pdint_new in class_new breaks with an error. My idea is to first try to understand the code hence my question: What does class_new do?
My guess is connecting puredata command with a function in C. Am I correct or completely missing the point?
Thanks.
B.
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