Pd-dev November 2003

pd-dev@lists.iem.at

31 participants
28 discussions

Pdplay?
by Nicola Bernardini 21 Oct '04

21 Oct '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear all, at the SOb project (http://www.soundobject.org) we're writing some really cool physical model objects which we are soon going to package and propose to the pure-data externals repository (they are GNU/GPL). However, we now have a problem that we want to solve soon: we need standalone versions of some demo applications (possibly running griPD etc.) we did. It would be nice to have a sort of MaxPlay type of thing (how about PdPlay?). I have some ideas on how to do it and it could be trivial, and therefore it is very probable that someone has already done it somewhere. If no one has done it, I'll hack up one solution and report back to the list as soon as it is done (it is going to be GNU/GPL anyway :). Thank you in advance for all the help you will want to give. nicb +--------------------------------------------------------------------+ |Nicola Bernardini | |E-mail: nicb(a)centrotemporeale.it | |GPG Fingerprint = 6AE6 AF21 E160 D9B3 396E EBAC 906C CFAE 4D65 D910| |Neither MS-Word nor MS-PowerPoint attachments please: | |http://www.fsf.org/philosophy/no-word-attachments.html | +--------------------------------------------------------------------+ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.0 (GNU/Linux) Comment: Made with pgp4pine 1.75-6 iD8DBQE9mf2qkGzPrk1l2RARAqi/AJ92NXY9HoDWlMbRcu59RkUQNH8E7gCeLU07 +ocbGJWYRzzrrdQO/cG0BcM= =TT6i -----END PGP SIGNATURE-----

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-DLINUX
by Hans-Christoph Steiner 25 Mar '04

25 Mar '04

Would it break anything if I add -DLINUX to externals/build/linux/makefile? There is already /DNT and -DMACOSX for Windows and MacOSX, and it would be handy to be able to differentiate Linux as well. .hc zen \ \ \[D[D[D[D

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pthread_setschedparam problem on OSX + fix
by cgc 17 Jan '04

17 Jan '04

I've been meaning to post this change for a long time, and have been negligent about it. The pthread_setschedparam() hack that helps pd's audio not drop on OSX is absolutely fatal when used with GEM. The reason for this is that OSX uses OpenGL for the entire UI and GL requires context switches to handle multiple applications sharing the hardware. When Pd sets it's pthread priority higher than the UI, this context switch can be blocked resulting in a complete lockout of UI events as GEM grabs all the CPU resources and refuses to relinquish the context. The fix is to add the -rt option as prerequisite and not make this the default action (a check to make sure GEM is not loaded would be good to have as well): #ifdef MACOSX if (sys_hipriority) { struct sched_param param; int policy = SCHED_RR; int err; param.sched_priority = 80; // adjust 0 : 100 post("pd: real-time mode - using pthread_setschedparam\n"); err = pthread_setschedparam(pthread_self(), policy, &param); if (err) post("warning: high priority scheduling failed\n"); } #endif /* MACOSX */

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presets... why not?
by Krzysztof Czaja 02 Dec '03

02 Dec '03

hi all, hi Miller, just managed to scan over all the recent talk about state saving, presets, etc. on the pd list... ...no doubt I am thinking slow. In fact, I have not even figured out yet, why any generic, user-friendly mechanism for storing and recalling run-time state is bad in principle. Is it so, because it is hard to guarantee that the state being recalled was actually stored for the recalling patch, and, that the patch has not been confusingly modified since? However, there are several ways to validate a state against a patch, both at a time of state-file loading, and at a time of a recall. None is perfect, theoretically, but this cannot be that important, really. At least, any generic validation method would do better than specific, hand-crafted schemes, patched around textfile, etc. Apart from load/recall validation, I do not see anything heretical, technically. There is nothing special, for example, about storing object's state using a mechanism similar to the class' save function. Perhaps the reason is not technical at all... but what is it? Please, help. Krzysztof

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compiling under Linux Red Hat 9
by Julius Orion Smith III 01 Dec '03

01 Dec '03

To get pd 0.37 to compile under Red Hat 9 Linux, I had to make the following (guessed) change in s_audio_jack.c: static int srate (jack_nframes_t srate, void *arg) { //jos: printf ("jack: sample rate %ld/sec\n", srate); printf ("jack: sample rate %d/sec\n", srate); sys_dacsr = srate; return 0; } Otherwise, compilation died on a compiler warning. -- Julius (jos(a)ccrma.stanford.edu)

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pd-cvs list
by Johannes M Zmoelnig 01 Dec '03

01 Dec '03

is it really necessary that all the changes are posted to the pd-cvs ? i would find comments only a bit more interesting (i would check out the new files instead of patching my local copies) mfg.asd.rw IOhannes

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OSCx compile issues on OSX
by ben＠ekran.org 28 Nov '03

28 Nov '03

Hey all, I can't compile OSCx for darwin because: [g4:~/OSCx/OSC] synthops% make pd_darwin cc -DPD -DUNIX -DMACOSX -O2 -Wall -W -Wshadow -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -I../../build/include -I../../obj -c *.c sendOSC.c: In function `sendOSC_sendtyped': sendOSC.c:300: warning: ordered comparison of pointer with integer zero sendOSC.c: In function `CommandLineMode': sendOSC.c:410: warning: `numArgs' might be used uninitialized in this function sendOSC.c: In function `ParseTimeTag': sendOSC.c:570: warning: long long unsigned int format, OSCTimeTag arg (arg 3) cc -bundle -undefined suppress -flat_namespace -o OSC.pd_darwin OSC.o htmsocket.o OSC-pattern-match.o sendOSC.o dumpOSC.o routeOSC.o -lm -lc ../libOSC/libOSC.a ld: archive: ../libOSC/libOSC.a has no table of contents, add one with ranlib(1) (can't load from it) make: *** [OSC.pd_darwin] Error 1 so I tried to add a table of contents: [g4:~/OSCx/OSC] synthops% ranlib ../libOSC/libOSC.a ranlib: warning for library: ../libOSC/libOSC.a the table of contents is empty (no object file members in the library define global symbols) Seems like libOSC.a is not built properly? since there is a pd_linux file included, why not a pd_darwin? Thanks Ben

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tooltips
by guenter geiger 27 Nov '03

27 Nov '03

HI, I had a try on implementing tooltips, just commited to CVS. Feedback is welcome. Generally youonly have to add a description what every inlet does in your abstractions: |inlet frequency| and you should be able to see it in edit mode from outside. turn it on and off with |;pd tooltips 1< |;pd tooltips 0< (its on by default). Especially feedback from win and osx is appreciated. What is missing is the information for the builtin objects, which can be added easily when the system proved to be useful. Guenter

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Linux compile error
by michael bjorkegren 25 Nov '03

25 Nov '03

Hi, I am attempting to compile PD on Suse 9.0. The error I'm getting is warning: dereferencing type - punned pointer will break strict dereferencing rules It happens in statements like these: if (PD_BADFLOAT(f)) f = 0; Does anyone know what might be causing this? Thank you Michael Bjorkegren __________________________________ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/

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--enable-alsa compile errors
by d 23 Nov '03

23 Nov '03

hi! i tried to compile pd against the latest alsa-drivers (fresh cvs-checkout) on a new machine (linux 2.4.22) and ran into errors. am i doing something wrong, or did the alsa-api change and pd-sources are out of sync with the drivers? regards d13b s_linux.c: In function `alsa_set_params': s_linux.c:1551: Warnung: passing arg 2 of `snd_pcm_hw_params_get_period_size_min' from incompatible pointer type s_linux.c:1551: error: too few arguments to function `snd_pcm_hw_params_get_period_size_min' s_linux.c:1552: Warnung: passing arg 2 of `snd_pcm_hw_params_get_period_size_max' from incompatible pointer type s_linux.c:1552: error: too few arguments to function `snd_pcm_hw_params_get_period_size_max' s_linux.c:1553: error: too few arguments to function `snd_pcm_hw_params_get_periods_min' s_linux.c:1554: error: too few arguments to function `snd_pcm_hw_params_get_periods_max' s_linux.c:1598: error: too few arguments to function `snd_pcm_hw_params_get_channels_max' s_linux.c:1613: error: too few arguments to function `snd_pcm_hw_params_get_periods_max' -- Military intelligence is a contradiction in terms. -- Groucho Marx

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Pd-dev November 2003