atom feed6 messages in at.iem.pd-devRe: [PD-dev] Accessing Gem_State poin...
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Jean-Yves GratiusFeb 19, 2009 5:24 am 
Thomas GrillFeb 19, 2009 9:10 am 
Jean-Yves GratiusFeb 19, 2009 11:35 pm 
marius schebellaFeb 20, 2009 4:21 am 
Thomas GrillFeb 20, 2009 5:54 am 
Thomas GrillFeb 20, 2009 5:56 am 
Subject:Re: [PD-dev] Accessing Gem_State pointer from a flext-external [resolved]
From:Jean-Yves Gratius (jygr@club.fr)
Date:Feb 19, 2009 11:35:16 pm
List:at.iem.pd-dev

Hi Thomas,

oups sorry, I forgot to describe my problem. yes it compiled, didn't crash. it just sended data that didn't correpond to the gem_state struct. Indeed i found my error: I read that gem_state is followed by 2 pointers : gem_state <*GemCache> <*GemState> If I replace in my code GetPointer(argv[0]) by GetPointer(argv[1]), everything is ok. J.Y.

Thomas Grill a écrit :

Hi, it would be useful to know in which way your code doesn't do what you want. Does it compile or not, are there runtime problems, does it crash? gr~~~

Am 19.02.2009 um 14:25 schrieb Jean-Yves Gratius:

Hi, I'm triing to write a flext external thats reads a gem_state struct. I 'd like to access the pixBlock data. I wrote the following method ( registered as FLEXT_ADDMETHOD_(0,"gem_state", gem_state) ) I don't know where I am wrong in my code.... any hint ? thanks, Jean-Yves

void my_flext_external::gem_state(int argc, t_atom *argv) { GemState *my_pointer; if (CanbePointer(argv[0])) { my_pointer = (GemState *) GetPointer(argv[0]); // retrieve gem pointer if (!my_pointer) { post ("no pixblock !"); return; } else { //accessing to fields post ("dirty field = %d", my_pointer->dirty); post ("inDisplayList field = %d", my_pointer->inDisplayList); post ("lighting field = %d", my_pointer->lighting); post ("texture field = %d", my_pointer->texture); post ("*image field = %d", my_pointer->image); post ("*texCoords field = %d", my_pointer->texCoords); post ("multiTexUnits field = %d", my_pointer->multiTexUnits); // etc... }

}

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