Pd-list January 2005

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122 participants
191 discussions

writesf~ errors on 64-bit?
by thewade 25 Jan '05

25 Jan '05

I can read in .wav on 64-bit if I supply use the following readsf~ open command: open sound.wav 0 200 2 2 l Which I understand means: read 0 framse first before playing, skip 200 frames, 2 channels, 16 byte, little endian (pc). I cannot load a file without skipping frames at the beginning. Is this a known 64-bit bug? Does anyone else get this? The help patches are the same way. Also when I writesf~ I supply: open sound.wav -wave -bytes 2 -rate 48000 (or 44100) and a file is created, but when I read it back in through readsf~ the file playes twice as fast. Another known 64-bit bug? Thanks for the help! -thewade

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Re: question about gem on fedora
by thewade 25 Jan '05

25 Jan '05

> I know it was a long time ago, but I\'m having the exact same > problem that you had: I can\'t build gem on a fedora (core 3) > because the configure script doesn\'t find opengl: > >> checking for glInitNames in -lGL... no >> checking for glInitNames in -lMesaGL... no >> OpenGL is mandatory > > I know that the libraries are there. Did you ever fix the > problem? Do you remember how? Ya, for some reason nobody else on the PD list has this problem. Here is the solution: > My reported bug was that Gem,s configure script was trying to find GL by > compiling conftest.c with the following command: > gcc -o conftest -g -O2 -L/usr/X11R6/lib conftest.c -lGL -Wl,-shared -Wl,-export-dynamic -lXxf86vm -lXext -lX11 > (as taken from configure) > but my problems seem obvious to Jacub, read below! > > ------- Additional Comments From jakub(a)redhat.com 2004-03-18 05:18 ------- > That is to be expected. Never use -Wl,-shared, but -shared. > With -Wl,-shared, you don\'t tell the gcc driver that you are trying > to build a shared library, so it throws in crt objects for executable > etc., but you tell the linker to create a shared library with that. > With -shared, you tell the gcc driver that you are linking a shared > library and it will take care of the details (putting in correct crt > files, libraries etc. and of course also passing -shared to ld). So vi configure and grep for -Wl,shared and change it to -shared! Good luck! -thewade

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PD and tcl/tk 8.4.8 build problem
by thewade 25 Jan '05

25 Jan '05

Hello list, Im trying to get tcl/tk 8.4.8 to build in such a way as to allow pd to find it. I get the foolowing error from pd: Application initialization failed: Can\'t find a usable tk.tcl in the following directories: /usr/local/lib/pd/tk/library /usr/share/tk8.4 ./lib/tk8.4 ./lib/tk8.4 ./library ./library ./tk8.4.8/library ./tk8.4.8/library But tcl is in /usr/share and tk.tcl is in /usr/local/lib/tk8.4 I tried changing --with-libdir=/usr/share/tk8.4 with no success. Can anybody help me? tcl: ./configure --enable-threads --enable-shared --enable-64bit --prefix=/usr/local tk: ./configure --enable-threads --enable-shared --enable-64bit --with-tcl=/usr/local/src/tcl8.4.8/unix --prefix=/usr/local --enable-shared Thanks -thewade

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Externals with threads ...
by seth＠street-vision.com 25 Jan '05

25 Jan '05

/***** Hello Pd mailist, I'm wondering what peoples opinions are on the subject of externals with their own threads. Are there reasons this is is not advised (e.g. reentrancy of subsequent calls)? To be specific I'm talking about threads that initiate output. I've looked at the sourcecode for netreceive and noticed the use of sys_addpollfn, but as this method is not included in m_pd.h, i wonder if it's even intended to be used in externals. One of the reasons i ask is that the example/test code attached bellow seems to work on one of my machines (Pentium 4/Fedora 2/PD 0.37.1), but when I run it on another (a PowerbookG4/Gentoo/PD 37.4) I get a stack overflow at the outlet_float. And if i'm not supposed to use threads, any insight on the use of these sys_*poll funtions. Regards, -S Code sample: thread_test.pd_linux *****/ #include <m_pd.h> #include <stdlib.h> #include <pthread.h> static t_class *thread_test_class; typedef struct _thread_test { t_object x_obj; t_outlet *outlet; pthread_t tid; } t_thread_test; void *thread_test_new(void){ t_thread_test *x = (t_thread_test *)pd_new(thread_test_class); x->outlet = outlet_new(&x->x_obj, &s_float); return x; } static void *aThread(void *v){ t_thread_test *x = (t_thread_test *)v; if (pthread_detach(pthread_self()) != 0){ post("pthread_detach failed"); return (NULL); } post("a thread is born"); t_float aFloat = (t_float)12345; outlet_float(x->outlet, aFloat); return(NULL); } void dotest(t_thread_test *x) { if (pthread_create(&x->tid, NULL, &aThread, (void *)x) != 0){ post("Could not create the thread"); return; } } void thread_test_setup(void){ thread_test_class = class_new(gensym("thread_test"), (t_newmethod)thread_test_new, 0,sizeof(t_thread_test), CLASS_DEFAULT,0); class_addmethod(thread_test_class,(t_method)dotest, gensym("test"),0); }

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readdir
by Ales Zemene 25 Jan '05

25 Jan '05

hi, there was an external readdir or dirread returning all files in dir, (not playlist from yves) ... can't find it anmore. Ales Zemene ********************** | irc.kunstlabor.at | | #kunstlabor | ********************** ********************** **********************

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gem and xorg
by cyrille 24 Jan '05

24 Jan '05

hello, after a hard crash of my computer, i've got a new system and i'm triing to compil gem with Xorg. i've got one problem with gemWinCreate. make gives : Dans le fichier inclus Ã partir de GemMan.cpp:41: GemWinCreate.h:20:38: X11/extensions/xf86vmode.h : Aucun fichier ou rÃ©pertoire de ce type (this mean that the compiler can't find the file "X11/extensions/xf86vmode.h" ) In file included from GemMan.cpp:41: GemWinCreate.h:68: error: 'XF86VidModeModeInfo' is used as a type, but is not defined as a type. the ./configure gives 1 related information : checking for XF86VidModeGetAllModeLines in -lXxf86vm... (cached) no i'll be very happy to know what i should do to compil gem... thanks for your help, cyrille spec of my system : ubuntu hoary linux + ati radeon 9000 ./configure output : cyrille@nunux:~/Gem/src/Gnu $ ./configure loading cache ./config.cache HEAD: /usr/include /usr/local/include ../../../GemLibs/ LIBS: ../../../GemLibs/ /usr/local/lib /usr/local/src checking host system type... i686-pc-linux-gnu Configuring for Gem.pd_linux checking for gnu make... yes checking for c++... (cached) c++ checking whether the C++ compiler (c++ ) works... yes checking whether the C++ compiler (c++ ) is a cross-compiler... no checking whether we are using GNU C++... (cached) yes checking whether c++ accepts -g... (cached) yes checking for gcc... (cached) gcc checking whether the C compiler (gcc ) works... yes checking whether the C compiler (gcc ) is a cross-compiler... no checking whether we are using GNU C... (cached) yes checking whether gcc accepts -g... (cached) yes checking for a BSD compatible install... (cached) /usr/bin/install -c checking whether make sets ${MAKE}... (cached) yes checking for sh... (cached) sh checking how to run the C preprocessor... (cached) gcc -E checking for X... (cached) libraries /usr/X11R6/lib, headers /usr/X11R6/include checking for dnet_ntoa in -ldnet... (cached) no checking for dnet_ntoa in -ldnet_stub... (cached) no checking for gethostbyname... (cached) yes checking for connect... (cached) yes checking for remove... (cached) yes checking for shmat... (cached) yes checking for IceConnectionNumber in -lICE... (cached) yes checking for MMX... checking MMX found... Building Auxilliary Libraries ============================= Finished building Auxilliary Libraries ====================================== checking for main in -lX11... (cached) yes checking for main in -lXext... (cached) yes checking for XF86VidModeGetAllModeLines in -lXxf86vm... (cached) no checking for sin in -lm... (cached) yes checking for main in -lz... (cached) yes checking for glInitNames in -lGL... (cached) yes checking for gluLookAt in -lGLU... (cached) yes checking for png_set_compression_level in -lpng... (cached) yes checking for TIFFOpen in -ltiff... (cached) yes checking for jpeg_read_header in -ljpeg... (cached) yes checking for FTGLPixmapFont in -lftgl... (cached) no checking alternate -lftgl in ../../../GemLibs/ /usr/local/lib /usr/local/src... configure: warning: Build ftgl library somewhere checking for open in -lgltt... (cached) yes checking for TT_FreeType_Version in -lttf... (cached) yes checking for main in -lvl... (cached) no checking for main in -lglib... (cached) no checking for mpeg3_check_sig in -lmpeg3... (cached) no checking alternate -lmpeg3 in ../../../GemLibs/ /usr/local/lib /usr/local/src... configure: warning: Build mpeg3 library somewhere checking for OpenMPEG in -lmpeg... (cached) no checking alternate -lmpeg in ../../../GemLibs/ /usr/local/lib /usr/local/src... configure: warning: Build mpeg library somewhere checking for quicktime_check_sig in -lquicktime... (cached) no checking alternate -lquicktime in ../../../GemLibs/ /usr/local/lib /usr/local/sr c... configure: warning: Build quicktime library somewhere checking for CreateIAviReadFile in -laviplay... (cached) no checking alternate -laviplay in ../../../GemLibs/ /usr/local/lib /usr/local/src. .. configure: warning: Build aviplay library somewhere checking for dv_init in -ldv... (cached) no checking alternate -ldv in ../../../GemLibs/ /usr/local/lib /usr/local/src... co nfigure: warning: Build dv library somewhere checking for GL/gl.h... (cached) yes checking for GL/glu.h... (cached) yes checking pd>=0.37... yes checking for working const... (cached) yes checking for ANSI C header files... (cached) no checking for size_t... (cached) yes checking for vprintf... (cached) yes checking for strdup... (cached) yes checking for strstr... (cached) yes "makesoure" called from configure Sources for ../Manips Sources for ../Particles Sources for ../Base Sources for ../MarkEx Sources for ../Pixes Sources for ../Controls Sources for ../Nongeos Sources for ../Geos Sources for ../openGL creating ./config.status creating Makefile creating ./../Manips/Makefile creating ./../Particles/Makefile creating ./../Base/Makefile creating ./../MarkEx/Makefile creating ./../Pixes/Makefile creating ./../Controls/Makefile creating ./../Nongeos/Makefile creating ./../Geos/Makefile creating ./../openGL/Makefile creating ../Base/configLinux.h ../Base/configLinux.h is unchanged

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gem output to firewire on OS X
by Christian Klotz 24 Jan '05

24 Jan '05

Hi all, I just have a basic question. I want to output the gemwin to firewire but I dont know how. Does anyone know if it is possible on OS X and if so, how? Thanks in advance, regards, christian --- Christian Klotz Kunsthochschule Kassel / School of Arts and Design Kassel

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[gem] - repeated objects vs. time
by Thoralf Schulze 24 Jan '05

24 Jan '05

Hi list, I really learned to love the use of repeat with gem - there's nothing more tedious than creating 100 or so geos by hand. In fact, my threshold is closer to 10 :-) I tried to build an oscilloscope that way the other day - and failed miserably. The idea was simple enough: repeat 50 spheres or so, distribute them evenly on the x axis and get values delivered by snapshot~ as amplitude for each of them. Having only a vague idea of what fft actually does, snapshot~ seemed to be the right choice to me: it outputs values on bangs, and the output is in the -1 to 1 range. I got only vertically moving straight lines. At first I thought that snapshot~ was too slow and replaced it by env~ with various block sizes - same thing. The surprising thing was that the value delivered by either snapshot~ or env~ was the same for all of the geos. So it seems like all repeated geos are created simultanously - okay. I then tried to introduce some delay into the render chain, with no success. Could it be that "the joys of statemachines" are a major drawback in that respect? Now, it would be really cool if someone had an answer to these questions: - do I have to use uzi & until for creating delayed render chains created with repeat? - what about single- vs. doublebuffering? - if render chains cannot be delayed at all, what about this: the audio input would be continously sampled each x milliseconds, the results are stored in a table. These values will then be used to determine the amplitude of so-and-so-many points of a curve that would be created by repeat. The index to the beginning of the values to be used will be increased by one with every frame gem is rendering. Obviously, one would have to implement some sort of looping sampling/indexing, otherwise the table would grow infinitely ... Is there a realistic chance of getting this to work? Thank you for your help, Thoralf. ___________________________________________________________ Gesendet von Yahoo! Mail - Jetzt mit 250MB Speicher kostenlos - Hier anmelden: http://mail.yahoo.de

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netreceive - EOF on socket 442
by vlada car 24 Jan '05

24 Jan '05

my friend wrote a win app in C that sends 'hello world' via tcp socket e.g. 2222 and with the receive.exe written in C, we are able to see 'hello world' but when we try to listen with PD we get 'EOF on socket 442' or some other numbers... do we need something that will translate output from the C program? does anyone know how to treat this? thanks v

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route a bang
by Thoralf Schulze 24 Jan '05

24 Jan '05

Hi there, this is probably really noob. I banged my head several times yesterday while trying to route a bang in pd - in other words: I wanted an object that takes bang at its left inlet and a simple 0/1 at its right. The bang should then be routed to either the left or the right outlet, according to the right inlet. The solution I finally came up with is to convert the bang to a number, use moses to do the actual routing and convert the numbers moses spits out to bangs again. Not quite an elegant solution, I guess - I appreciate any hints. With kind regards, Thoralf. ___________________________________________________________ Gesendet von Yahoo! Mail - Jetzt mit 250MB Speicher kostenlos - Hier anmelden: http://mail.yahoo.de

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Pd-list January 2005