[PD-dev] Can somebody help to create a desktop / VST / AU version of a PD / libPD / app ?

Dan Wilcox danomatika at gmail.com
Sun Apr 26 21:00:06 CEST 2015


Ok, now tracking 0.46 branch. Thanks.

--------
Dan Wilcox
@danomatika
danomatika.com <http://danomatika.com/>
robotcowboy.com <http://robotcowboy.com/>
> On Apr 24, 2015, at 10:25 PM, Miller Puckette <msp at ucsd.edu> wrote:
> 
> Finally but the bullet and tried this...
> 
> I made a branch, 0.46, adn committeed that and one other minor bug fix.
> The commit is 905695a350bf44d906fbb8cde905fa0b81d12b57
> 
> Too early in the game to make a 0.46-7 but I think if you track the 0.46 branch
> you'll be OK.
> 
> cheers
> Miller
> 
> On Thu, Apr 23, 2015 at 12:01:49AM -0400, Dan Wilcox wrote:
>> Actually yeah, looks good. Is there anyway this particular patch can be backported to the 0.46-6 release? Or will there be a 0.46-7 coming up soon? I ask because I’m having libpd checkout pure-data release tags. Not a huge deal if not, since this is still in testing.
>> 
>> Just to confirm:
>> 
>> Current git log for the pure-data sources I’m using:
>> 
>>> danomatika:pure-data dano$ git log
>>> commit 35151c473827260c86cc864cc4cd058b24e67139
>>> Author: Miller Puckette <msp at ucsd.edu>
>>> Date:   Wed Apr 22 14:06:36 2015 -0700
>>> 
>>>    make list of signals local to a pd instance to fix libpd crasher
>> 
>> 
>> Performed:
>> 
>> cd libpd
>> make clobber
>> make
>> cd samples/c/pdtest_multi
>> make clobber
>> make
>> ./pdtest_multi test.pd ./
>> 
>> Got:
>> 
>>> start 80c04a90
>>> stop 80c04a90
>>> continue start 80c04a90
>>> stop 80c04a90
>>> print: 0
>>> 1003-frequency: bang
>>> start 80c04a90
>>> stop 80c04a90
>>> continue start 80c04a90
>>> start 80c04db0
>>> stop 80c04db0
>>> continue start 80c04db0
>>> stop 80c04db0
>>> print: 0
>>> 1004-frequency: bang
>>> start 80c04db0
>>> stop 80c04db0
>>> continue start 80c04db0
>>> 1003-frequency: 1
>>> 1004-frequency: 2
>>> 1.000000 1.000000 0.999999 0.999999 0.999998 0.999998 0.999997 0.999997 
>>> 1.000000 1.000000 0.999998 0.999998 0.999996 0.999996 0.999995 0.999995 
>>> print: 1
>>> 0.999944 0.999944 0.999943 0.999943 0.999942 0.999942 0.999941 0.999941 
>>> print: 1
>>> 0.999815 0.999815 0.999810 0.999810 0.999804 0.999804 0.999799 0.999799 
>>> print: 2
>>> print: 2
>> 
>> I got the same response with building libpd with & without -03.
>> 
>> --------
>> Dan Wilcox
>> @danomatika
>> danomatika.com <http://danomatika.com/>
>> robotcowboy.com <http://robotcowboy.com/>
>>> On Apr 22, 2015, at 8:27 PM, Miller Puckette <msp at ucsd.edu <mailto:msp at ucsd.edu>> wrote:
>>> 
>>> Hmm... and (just checking) - you did a make clean and rebuilt everything?
>>> The pd_instance structure changed....
>>> 
>>> I can't get it to fail over here any more...
>>> 
>>> cheers
>>> Miller
>>> 
>>> On Wed, Apr 22, 2015 at 05:30:20PM -0400, Dan Wilcox wrote:
>>>> Thanks. Unfortunately still a crash, but now at a different place. I also confirmed that it still runs fine when libpd is compiled with -O3 aka make DEBUG=true.
>>>> 
>>>> #0  signal_cleanup [inlined] () at /Users/dano/src/pd/libpd/pure-data/src/d_ugen.c:364
>>>> #1  0x0000000100026680 in ugen_stop () at d_ugen.c:562
>>>> #2  0x000000010002670e in ugen_start () at d_ugen.c:569
>>>> #3  0x000000010003197e in glob_dsp (dummy=0x100102e00, s=0x0, argc=<value temporarily unavailable, due to optimizations>, argv=0x100102e20) at g_canvas.c:1086
>>>> #4  0x000000010006d286 in pd_typedmess (x=0x1000a5760, s=0x0, argc=1055232, argv=0x100102e20) at m_class.c:699
>>>> #5  0x0000000100096fb8 in libpd_message [inlined] () at /Users/dano/src/pd/libpd/libpd_wrapper/z_libpd.c:236
>>>> #6  0x0000000100096fb8 in libpd_finish_message (recv=<value temporarily unavailable, due to optimizations>, msg=0x100000f67 "dsp") at z_libpd.c:562
>>>> #7  0x0000000100000b8f in main ()
>>>> 
>>>> In detail:
>>>> 
>>>> #0  signal_cleanup [inlined] () at /Users/dano/src/pd/libpd/pure-data/src/d_ugen.c:364
>>>> 364	        pd_this->pd_signals = sig->s_nextused;
>>>> (gdb) frame 1
>>>> #1  0x0000000100026680 in ugen_stop () at d_ugen.c:562
>>>> 364	        pd_this->pd_signals = sig->s_nextused;
>>>> (gdb) frame 2
>>>> #2  0x000000010002670e in ugen_start () at d_ugen.c:569
>>>> 569	    ugen_stop();
>>>> (gdb) frame 3
>>>> #3  0x000000010003197e in glob_dsp (dummy=0x100102e00, s=0x0, argc=<value temporarily unavailable, due to optimizations>, argv=0x100102e20) at g_canvas.c:1086
>>>> 1086	    ugen_start();
>>>> (gdb) frame 4
>>>> #4  0x000000010006d286 in pd_typedmess (x=0x1000a5760, s=0x0, argc=1055232, argv=0x100102e20) at m_class.c:699
>>>> 699	            else (*((t_messgimme)(m->me_fun)))(x, s, argc, argv);
>>>> (gdb) frame 5
>>>> #5  0x0000000100096fb8 in libpd_message [inlined] () at /Users/dano/src/pd/libpd/libpd_wrapper/z_libpd.c:236
>>>> 236	  pd_typedmess(dest, gensym(msg), n, v);
>>>> (gdb) frame 6
>>>> #6  0x0000000100096fb8 in libpd_finish_message (recv=<value temporarily unavailable, due to optimizations>, msg=0x100000f67 "dsp") at z_libpd.c:562
>>>> 236	  pd_typedmess(dest, gensym(msg), n, v);
>>>> (gdb) frame 7
>>>> #7  0x0000000100000b8f in main ()
>>>> 
>>>> --------
>>>> Dan Wilcox
>>>> @danomatika
>>>> danomatika.com <http://danomatika.com/> <http://danomatika.com/ <http://danomatika.com/>> <http://danomatika.com/ <http://danomatika.com/> <http://danomatika.com/ <http://danomatika.com/>>>
>>>> robotcowboy.com <http://robotcowboy.com/> <http://robotcowboy.com/ <http://robotcowboy.com/>> <http://robotcowboy.com/ <http://robotcowboy.com/> <http://robotcowboy.com/ <http://robotcowboy.com/>>>
>>>>> On Apr 22, 2015, at 5:12 PM, Miller Puckette <msp at ucsd.edu> wrote:
>>>>> 
>>>>> OK ... I think I fixed it... pull newest from git and try.
>>>>> 
>>>>> thanks
>>>>> M
>>>>> 
>>>>> On Wed, Apr 22, 2015 at 12:35:10PM -0700, Miller Puckette wrote:
>>>>>> Aha - sometimes things crash on OSX because of "minor" buffer overruns that
>>>>>> linux just soldiers past.  I'll break out a mac and try again...
>>>>>> 
>>>>>> M
>>>>>> 
>>>>>> On Wed, Apr 22, 2015 at 03:03:09AM -0400, Dan Wilcox wrote:
>>>>>>> Weird. It crashes for me on OSX when libpd is built with -O3 and the program is built with or without -O3.
>>>>>>> 
>>>>>>> *Note: I just finished reorganizing the libpd samples by language name. If you do a pull, the multi instance test is now located in samples/c/pdtest_multi 
>>>>>>> 
>>>>>>> Rebuilding and running it again yields:
>>>>>>> 
>>>>>>> Program received signal EXC_BAD_ACCESS, Could not access memory.
>>>>>>> Reason: 13 at address: 0x0000000000000000
>>>>>>> outlet_float (x=0x3f7ffc2a3f7ffc38, f=0) at m_obj.c:388
>>>>>>> 388	    for (oc = x->o_connections; oc; oc = oc->oc_next)
>>>>>>> 
>>>>>>> #0  outlet_float (x=0x3f7ffc2a3f7ffc38, f=0) at m_obj.c:388
>>>>>>> #1  0x000000010006f0b9 in outlet_bang (x=<value temporarily unavailable, due to optimizations>) at m_obj.c:363
>>>>>>> #2  0x00000001000953f9 in metro_tick (x=0x10021ad90) at x_time.c:162
>>>>>>> #3  0x0000000100071010 in sched_tick () at m_sched.c:418
>>>>>>> #4  0x0000000100096733 in libpd_process_float (ticks=1, inBuffer=<value temporarily unavailable, due to optimizations>, outBuffer=<value temporarily unavailable, due to optimizations>) at z_libpd.c:185
>>>>>>> #5  0x0000000100000d67 in main ()
>>>>>>> 
>>>>>>> some frame detail:
>>>>>>> 
>>>>>>> (gdb) frame 0
>>>>>>> #0  outlet_float (x=0x3f7ffc2a3f7ffc38, f=0) at m_obj.c:388
>>>>>>> 388	    for (oc = x->o_connections; oc; oc = oc->oc_next)
>>>>>>> (gdb) frame 1
>>>>>>> #1  0x000000010006f0b9 in outlet_bang (x=<value temporarily unavailable, due to optimizations>) at m_obj.c:363
>>>>>>> 363	        pd_bang(oc->oc_to);
>>>>>>> (gdb) frame 2
>>>>>>> #2  0x00000001000953f9 in metro_tick (x=0x10021ad90) at x_time.c:162
>>>>>>> 162	    outlet_bang(x->x_obj.ob_outlet);
>>>>>>> (gdb) frame 3
>>>>>>> #3  0x0000000100071010 in sched_tick () at m_sched.c:418
>>>>>>> 418	        (*c->c_fn)(c->c_owner);
>>>>>>> (gdb) frame 4
>>>>>>> #4  0x0000000100096733 in libpd_process_float (ticks=1, inBuffer=<value temporarily unavailable, due to optimizations>, outBuffer=<value temporarily unavailable, due to optimizations>) at z_libpd.c:185
>>>>>>> 185	  PROCESS(,)
>>>>>>> (gdb) frame 5
>>>>>>> #5  0x0000000100000d67 in main ()
>>>>>>> 
>>>>>>> --------
>>>>>>> Dan Wilcox
>>>>>>> @danomatika
>>>>>>> danomatika.com <http://danomatika.com/>
>>>>>>> robotcowboy.com <http://robotcowboy.com/>
>>>>>>>> On Apr 22, 2015, at 12:15 AM, Miller Puckette <msp at ucsd.edu> wrote:
>>>>>>>> 
>>>>>>>> I think it was optimized since I had already made libpd, not from the
>>>>>>>> sampes/.../multi directory.  But anyhow I re-did it as you suggest with
>>>>>>>> the same result....  can't make it fail...
>>>>>>>> 
>>>>>>>> cheers
>>>>>>>> M
>>>>>>>> 
>>>>>>>> On Wed, Apr 22, 2015 at 12:03:28AM -0400, Dan Wilcox wrote:
>>>>>>>>> You ran it without the optimizations since I added the debug option. Remove DEBUG=true from line 33 in the Makefile: https://github.com/libpd/libpd/blob/master/samples/c_samples/multi/Makefile#L33 <https://github.com/libpd/libpd/blob/master/samples/c_samples/multi/Makefile#L33> and do a full clean before rebuilding:
>>>>>>>>> 
>>>>>>>>> cd ../../../ && make clobber && cd - && make
>>>>>>>>> --------
>>>>>>>>> Dan Wilcox
>>>>>>>>> @danomatika
>>>>>>>>> danomatika.com <http://danomatika.com/>
>>>>>>>>> robotcowboy.com <http://robotcowboy.com/>
>>>>>>>>>> On Apr 21, 2015, at 11:57 PM, Miller Puckette <msp at ucsd.edu> wrote:
>>>>>>>>>> 
>>>>>>>>>> Hi Dan et al -
>>>>>>>>>> 
>>>>>>>>>> I gave this a try:
>>>>>>>>>> 
>>>>>>>>>> git clone https://github.com/libpd/libpd.git
>>>>>>>>>> 
>>>>>>>>>> [copies pd sources into libpd/pure-data]
>>>>>>>>>> 
>>>>>>>>>> cd libpd
>>>>>>>>>> make
>>>>>>>>>> 
>>>>>>>>>> cd samples/c_samples/multi/
>>>>>>>>>> make
>>>>>>>>>> ./multi_pdtest multi_test.pd `pwd`
>>>>>>>>>> 
>>>>>>>>>> and got output:
>>>>>>>>>> 
>>>>>>>>>> print: 0
>>>>>>>>>> 1003-frequency: bang
>>>>>>>>>> print: 0
>>>>>>>>>> 1004-frequency: bang
>>>>>>>>>> 1003-frequency: 1
>>>>>>>>>> 1004-frequency: 2
>>>>>>>>>> 1.000000 1.000000 0.999999 0.999999 0.999998 0.999998 0.999997 0.999997 
>>>>>>>>>> 1.000000 1.000000 0.999998 0.999998 0.999996 0.999996 0.999995 0.999995 
>>>>>>>>>> print: 1
>>>>>>>>>> 0.999944 0.999944 0.999943 0.999943 0.999942 0.999942 0.999941 0.999941 
>>>>>>>>>> print: 1
>>>>>>>>>> 0.999815 0.999815 0.999810 0.999810 0.999804 0.999804 0.999799 0.999799 
>>>>>>>>>> print: 2
>>>>>>>>>> print: 2
>>>>>>>>>> 
>>>>>>>>>> This on Fedora 21, 64 bits, Intel hardware.  
>>>>>>>>>> 
>>>>>>>>>> I guess something subtle is happening, maybe in Pd and unrelated to libpd?
>>>>>>>>>> 
>>>>>>>>>> cheers
>>>>>>>>>> Miller
>>>>>>>>>> 
>>>>>>>>>> On Tue, Apr 21, 2015 at 06:00:15PM -0400, Dan Wilcox wrote:
>>>>>>>>>>> Howdy Miller,
>>>>>>>>>>> 
>>>>>>>>>>> Following up from the dev list last year, I added your multi instance test to the c samples included with libpd: https://github.com/libpd/libpd/tree/master/samples/c_samples/multi <https://github.com/libpd/libpd/tree/master/samples/c_samples/multi>
>>>>>>>>>>> 
>>>>>>>>>>> The one thing I want to double check is the changes to z_libpd.c you mentioned in http://lists.puredata.info/pipermail/pd-dev/2014-05/019832.html: <http://lists.puredata.info/pipermail/pd-dev/2014-05/019832.html:>
>>>>>>>>>>> 
>>>>>>>>>>>> Here's how I modified libpd_wrapper/z_libpd.c:
>>>>>>>>>>>> 
>>>>>>>>>>>> 55d54
>>>>>>>>>>>> <   sys_time = 0;
>>>>>>>>>>>> 110c109
>>>>>>>>>>>> <   sched_tick(sys_time + sys_time_per_dsp_tick);
>>>>>>>>>>>> ---
>>>>>>>>>>>>> 
>>>>>>>>>>>> sched_tick();
>>>>>>>>>>>> 
>>>>>>>>>>>> 130c129
>>>>>>>>>>>> <     sched_tick(sys_time + sys_time_per_dsp_tick); \
>>>>>>>>>>>> ---
>>>>>>>>>>>>> 
>>>>>>>>>>>> sched_tick(); \
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> Currently, that line is https://github.com/libpd/libpd/blob/master/libpd_wrapper/z_libpd.c#L171 <https://github.com/libpd/libpd/blob/master/libpd_wrapper/z_libpd.c#L171> and I’m getting a segfault if I replace it with sched_tick(); AND set gcc optimization to -O3
>>>>>>>>>>> 
>>>>>>>>>>> Here’s a gdb backtrace:
>>>>>>>>>>> 
>>>>>>>>>>> #0  0x0000000100091f2f in outlet_float (x=0x3f7ffc2a3f7ffc38, f=0.999937057) at m_obj.c:388
>>>>>>>>>>> #1  0x00000001000ac572 in pdfloat_bang (x=0x10021ac20) at x_connective.c:89
>>>>>>>>>>> #2  0x0000000100093d58 in pd_bang (x=0x10021ac20) at m_pd.c:267
>>>>>>>>>>> #3  0x0000000100091ddd in outlet_bang (x=0x10021ae20) at m_obj.c:363
>>>>>>>>>>> #4  0x00000001000c45e4 in metro_tick (x=0x10021ada0) at x_time.c:162
>>>>>>>>>>> #5  0x0000000100095021 in sched_tick () at m_sched.c:418
>>>>>>>>>>> #6  0x00000001000c5d4d in libpd_process_float (ticks=1, inBuffer=0x7fff5fbffa50, outBuffer=0x7fff5fbff750) at z_libpd.c:173
>>>>>>>>>>> #7  0x0000000100000d18 in main ()
>>>>>>>>>>> 
>>>>>>>>>>> If I don’t optimize, it works fine:
>>>>>>>>>>> 
>>>>>>>>>>> print: 0
>>>>>>>>>>> 1003-frequency: bang
>>>>>>>>>>> print: 0
>>>>>>>>>>> 1004-frequency: bang
>>>>>>>>>>> 1003-frequency: 1
>>>>>>>>>>> 1004-frequency: 2
>>>>>>>>>>> 1.000000 1.000000 0.999999 0.999999 0.999998 0.999998 0.999997 0.999997 
>>>>>>>>>>> 1.000000 1.000000 0.999998 0.999998 0.999996 0.999996 0.999995 0.999995 
>>>>>>>>>>> print: 1
>>>>>>>>>>> 0.999944 0.999944 0.999943 0.999943 0.999942 0.999942 0.999941 0.999941 
>>>>>>>>>>> print: 1
>>>>>>>>>>> 0.999815 0.999815 0.999810 0.999810 0.999804 0.999804 0.999799 0.999799 
>>>>>>>>>>> print: 2
>>>>>>>>>>> print: 2
>>>>>>>>>>> 
>>>>>>>>>>> --------
>>>>>>>>>>> Dan Wilcox
>>>>>>>>>>> @danomatika
>>>>>>>>>>> danomatika.com <http://danomatika.com/>
>>>>>>>>>>> robotcowboy.com <http://robotcowboy.com/>
>>>>>>>>>>>> On Apr 21, 2015, at 10:56 AM, Kjetil Matheussen <k.s.matheussen at gmail.com> wrote:
>>>>>>>>>>>> 
>>>>>>>>>>>> But for libpd, are you sure you need to add anything? Can't just the user
>>>>>>>>>>>> call the pdinstance_new and pd_setinstance functions directly?
>>>>>>>>>>>> 
>>>>>>>>>>>> http://lists.puredata.info/pipermail/pd-dev/2014-05/019832.html <http://lists.puredata.info/pipermail/pd-dev/2014-05/019832.html>
>>>>>>>>>>>> 
>>>>>>>>>>>> 
>>>>>>>>>>>> (BTW. When I wrote about libpds, I hadn't forgotten about the support for pd instances,
>>>>>>>>>>>> but since I didn't have all details in my head then, I didn't mention it. I should have though.)
>>>>>>>>>>>> 
>>>>>>>>>>>> 
>>>>>>>>>>>> On Tue, Apr 21, 2015 at 4:42 PM, Dan Wilcox <danomatika at gmail.com <mailto:danomatika at gmail.com>> wrote:
>>>>>>>>>>>> This should be possible with the current version of libpd which includes Miller’s multiple instance updates, see http://lists.puredata.info/pipermail/pd-dev/2014-05/019839.html <http://lists.puredata.info/pipermail/pd-dev/2014-05/019839.html>
>>>>>>>>>>>> 
>>>>>>>>>>>> I just haven’t gotten around to adding libpd-specific wrapper functions for this yet, but Miller provides code in that dev list exchange.
>>>>>>>>>>>> 
>>>>>>>>>>>> --------
>>>>>>>>>>>> Dan Wilcox
>>>>>>>>>>>> @danomatika
>>>>>>>>>>>> danomatika.com <http://danomatika.com/>
>>>>>>>>>>>> robotcowboy.com <http://robotcowboy.com/>
>>>>>>>>>>>>> On Apr 21, 2015, at 6:00 AM, pd-dev-request at lists.iem.at <mailto:pd-dev-request at lists.iem.at> wrote:
>>>>>>>>>>>>> 
>>>>>>>>>>>>> From: Oliver Greschke <info at o-g-sus.de <mailto:info at o-g-sus.de>>
>>>>>>>>>>>>> Subject: [PD-dev] Can somebody help to create a desktop / VST / AU version of a PD / libPD / app ?
>>>>>>>>>>>>> Date: April 21, 2015 at 3:15:44 AM EDT
>>>>>>>>>>>>> To: pd-dev at lists.iem.at <mailto:pd-dev at lists.iem.at>
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>> I am the creator of the Elastic Drums iOS app (with great PD help from Matt Davey).
>>>>>>>>>>>>> It’s made with PureData, libPD and Objective-C.
>>>>>>>>>>>>> I got asked a couple of times now, if there will be ever a standalone desktop version or even better Plugin (VST, AU) version of the app.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> As far as I know, there are not ready to use workarounds to do so. Which is sad, because I can imagine a lot of fantastic plugins emerging from PD
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Has somebody here some experience with doing such ports?
>>>>>>>>>>>>> Then please contact me.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Cheers,
>>>>>>>>>>>>> Oliver
>>>>>>>>>>>>> 
>>>>>>>>>>>>> info at o-g-sus.de <mailto:info at o-g-sus.de>
>>>>>>>>>>>> 
>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> Pd-dev mailing list
>>>>>>>>>>>> Pd-dev at lists.iem.at <mailto:Pd-dev at lists.iem.at>
>>>>>>>>>>>> http://lists.puredata.info/listinfo/pd-dev <http://lists.puredata.info/listinfo/pd-dev>
>>>>>>>>>>>> 
>>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>>> _______________________________________________
>>>>>>>>>>> Pd-dev mailing list
>>>>>>>>>>> Pd-dev at lists.iem.at
>>>>>>>>>>> http://lists.puredata.info/listinfo/pd-dev
>>>>>>>>>> 
>>>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> _______________________________________________
>>>>>> Pd-dev mailing list
>>>>>> Pd-dev at lists.iem.at
>>>>>> http://lists.puredata.info/listinfo/pd-dev

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