Pd-dev March 2016

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12 participants
17 discussions

[pure-data:bugs] #1235 cos~ corrupt waveform with large inputs
by Claude Heiland-Allen 20 Mar '16

20 Mar '16

--- ** [bugs:#1235] cos~ corrupt waveform with large inputs** **Status:** open **Group:** v0.46 **Created:** Sun Mar 20, 2016 04:51 PM UTC by Claude Heiland-Allen **Last Updated:** Sun Mar 20, 2016 04:51 PM UTC **Owner:** nobody **Attachments:** - [cos~-large-input-bug.pd](https://sourceforge.net/p/pure-data/bugs/1235/atta… (806 Bytes; text/x-puredata) If the input to [cos~] is greater than 1024, the waveform gets corrupt (first only half a cycle of a cosine waveform instead of a full cycle, then with higher inputs even less of the waveform). See attached patch which demonstrates the issue. Tested with self-compiled Pd-0.45.5 on Linux (amd64). --- Sent from sourceforge.net because pd-dev(a)lists.iem.at is subscribed to https://sourceforge.net/p/pure-data/bugs/ To unsubscribe from further messages, a project admin can change settings at https://sourceforge.net/p/pure-data/admin/bugs/options. Or, if this is a mailing list, you can unsubscribe from the mailing list.

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locking vanilla save states on OS X
by Dan Wilcox 20 Mar '16

20 Mar '16

Howdy all, I’d like to add my mechanism for locking the save state folder created by OSX 10.7+ as outlined in http://puredata.info/docs/faq/help-pd-crashes-on-startup-on-mac-osx-10-7 Where would be the best place to add it to the tcl? A function in the apple_events.tcl called by pd-gui.tcl after startup? -------- Dan Wilcox @danomatika <https://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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bitwise magic in OSS-backend
by IOhannes m zmölnig 20 Mar '16

20 Mar '16

while running Pd through some static code analysis, i stumbled upon the following in s_audio_oss.c:322-325 ~~~ if ((flags = fcntl(fd, F_GETFL)) < 0) post("couldn't get audio device flags"); else if (fcntl(fd, F_SETFL, flags & (!O_NDELAY)) < 0) post("couldn't set audio device flags"); ~~~ i guess this is meant to put the device into blocking-mode (without changing other device settings), so Pd could use it as a time-source, but shouldn't it then read : flags & (~O_NDELAY) i guess the OSS code has not been used for a while, and probably the 'flags' only ever contained the O_NDELAY bit (if any), so it haven't made much of a difference... fmads IOhannes

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[pure-data:bugs] #1234 pdlua build system on linux (raspbian, archlinux)
by Ticket 1234 13 Mar '16

13 Mar '16

--- ** [bugs:#1234] pdlua build system on linux (raspbian,archlinux)** **Status:** open **Group:** v0.46 **Created:** Sun Mar 13, 2016 11:47 AM UTC by Anonymous **Last Updated:** Sun Mar 13, 2016 11:47 AM UTC **Owner:** Martin Peach README file is obsolete, we try to use lua5.1 like specified in README but implicit declaration of lua_version shows that we need lua5.2. the Makefile don't find lua.h because it doesn't look in the right folder, so we have to do this to Makefile: sed -i '/LUA_CFLAGS =*/c\LUA_CFLAGS = -I\/usr\/include\/lua5.2' Makefile sed -i '/LUA_LIBS =*/c\LUA_LIBS = -llua5.2' Makefile and this to install in ~/pd-external instead of /usr/local/lib/pd-externals sed -i '/libdir = $(prefix)\/lib/c\libdir = ~' Makefile --- Sent from sourceforge.net because pd-dev(a)lists.iem.at is subscribed to https://sourceforge.net/p/pure-data/bugs/ To unsubscribe from further messages, a project admin can change settings at https://sourceforge.net/p/pure-data/admin/bugs/options. Or, if this is a mailing list, you can unsubscribe from the mailing list.

1 0

Re: [PD-dev] Symbol not found with Xcode
by Kjetil Matheussen 10 Mar '16

10 Mar '16

On Thu, Mar 10, 2016 at 10:12 AM, Nicolas Danet <nicolas.danet(a)free.fr> wrote: > Does it means that if the host opens the plug-in with RTLD_LOCAL flag, > that plug-in will not be able to export its symbols table to its own > dlopened externals (even doing it with RTLD_GLOBAL)? > It's been a while since I worked with this, but I think that's correct. You have to load the pure data code with RTLD_GLOBAL in order to load pd externals. And as I said, you can do that from your plugin just be creating another dynamic library which is loaded from your plugin.

2 1

Symbol not found with Xcode
by Pierre Guillot 10 Mar '16

10 Mar '16

Hi all, I'm working on a plugin that dynamically loads PD patches. Everything works fine, I even manage the multiple instances issue. You can take a look at it if you want : https://github.com/pierreguillot/Camomile. My problem is that the plugin can't load dynamically the external libraries (I tried with freeverb~ and other libraries and I got : Symbol not found: _s_signal Referenced from: /Users/Pierre/GitHub/Camomile/Patches/freeverb~.pd_darwin Expected in: flat namespace). I don't have any linker flag and I set up this set of macros for the preprocessor: PD=1 HAVE_UNISTD_H=1 USEAPI_DUMMY=1 HAVE_ALLOCA_H=1 HAVE_LIBDL=1 PD_INTERNAL=1 I use Xcode 7.2.1 with LLVM and OSX 10.9 for the deployment target (required for c++11 support). I going to try on Linux but if anybody has a clue for Mac I would be grateful (I must use Xcode because it's a JUCE project). Cheers

4 5

Why sys_ringbuf is not lock-free?
by Nicolas Danet 07 Mar '16

07 Mar '16

Hello, In s_audio_paring.h the ring buffer used (sys_ringbuf) seems not thread-safe (not lock-free thus also). It is used in the PaStreamCallback to provide/consume audio samples. I suppose it is deliberate. Is anybody could help me to understand why it is safe that way? Any clue appreciated.

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Pd-dev March 2016