Pd-dev December 2006

pd-dev@lists.iem.at

22 participants
74 discussions

first auto-vector test
by Hans-Christoph Steiner 18 Dec '06

18 Dec '06

I made two builds of Pd-0.39-2-extended-test6 on Mac OSX using gcc 4.0.1, with differing CFLAGS. I used the attached patch to measure the CPU usage, I tried to keep the operating circumstances equal, but this is a rough test. But from this, the results look quite promising: These flags are used in the standard build: -Os -funroll-loops -fomit-frame-pointer -mcpu=powerpc -mtune=7450 - mpowerpc-gfxopt The second is optimized for G4+: -fast -fPIC -mcpu=7450 -mtune=7450 -ftree-vectorize -ftree-vectorizer- verbose=3 | filename | G4+ | powerpc | ------------------------------------------------------------------------ feedback_delay_network.pd [linear 32 100 105( 91 165 [linear 65 10 15( 228 237 [exponential 64 1000 10( 249 280 (fdn~ NOT vectorized; d_soundfile.c, d_ctl.c, m_sched.c vectorized) ramping_up_and_down.pd 61 64 doc/3.audio.examples/G90.pitchshift.pd 95 97 My guess its the [readsf~] that is so much quicker in the feedback patch. .hc ------------------------------------------------------------------------ Mistrust authority - promote decentralization. - the hacker ethic

2 2

pd-MAIN: d_osc.c:39:2: error: #error No byte order defined
by Hans-Christoph Steiner 17 Dec '06

17 Dec '06

This message is from building pd-MAIN on Mac OS X 10.4/PowerPC: cc -g -O2 -DPD -Wall -W -Wstrict-prototypes -Wno-unused -Wno- parentheses -Wno-switch -DDL_OPEN -DMACOSX -DUNISTD -I/usr/X11R6/ include -I../portaudio/pa_common -I../portaudio/pablio -I../ portmidi/pm_common -I../portmidi/pm_mac -I../portmidi/porttime - DUSEAPI_PORTAUDIO -DPA19 -DPA_USE_COREAUDIO -isysroot /Developer/SDKs/ MacOSX10.4u.sdk -arch i386 -arch ppc -Wno-error -O2 - DUSEAPI_JACK -DINSTALL_PREFIX=\"\" -c -o ../obj/d_osc.o d_osc.c d_osc.c:39:2: error: #error No byte order defined d_osc.c:39:2: error: #error No byte order defined .hc ------------------------------------------------------------------------ Computer science is no more related to the computer than astronomy is related to the telescope. -Edsger Dykstra

1 0

moving iemgui from core to extra
by Hans-Christoph Steiner 17 Dec '06

17 Dec '06

In a first step towards making Pd a micro-language, I propose moving the IEM GUI objects that are embedded in Pd into the "extra" folder, compiled as individual files. The only changes needed to make this happen is to rename and move the relevant g_*.c files to extra, renaming the setup() functions accordingly, and changing the makefile. All of these are pretty trivial. Thoughts, comments, objections, improvements? .hc ------------------------------------------------------------------------ News is what people want to keep hidden and everything else is publicity. - Bill Moyers

9 22

Re: [PD-dev] 64-bit Tcl/Tk
by Hans-Christoph Steiner 16 Dec '06

16 Dec '06

-fPIC is on by default on Mac OS X, so that's easy. Having 64-bit floats is quite nice on the interface side because it means you can have large integers in Pd, like timestamps. .hc On Dec 16, 2006, at 1:24 AM, glauber alex dias prado wrote: > Except for some problems compiling some externals like osc that > needs a > fPIC i guess that Pd works ok, i am running linux64 a gentoo system > and > tcl/tk is working. > > Em Sex, 2006-12-15 às 17:34 -0500, Hans-Christoph Steiner escreveu: >> Does anyone know anything about the 64-bit support in Tcl/Tk? I was >> thinking of making 64-bit native G5 and Xeon builds of Pd, once >> everything is release. >> >> That said, does the "--enable-threads" thing do anything for us? >> >> .hc >> >> --------------------------------------------------------------------- >> --- >> >> All information should be free. - the hacker ethic >> >> >> >> >> >> _______________________________________________ >> PD-dev mailing list >> PD-dev(a)iem.at >> http://lists.puredata.info/listinfo/pd-dev ------------------------------------------------------------------------ Terrorism is not an enemy. It cannot be defeated. It's a tactic. It's about as sensible to say we declare war on night attacks and expect we're going to win that war. We're not going to win the war on terrorism. - retired U.S. Army general, William Odom

3 3

64-bit Tcl/Tk
by Hans-Christoph Steiner 15 Dec '06

15 Dec '06

Does anyone know anything about the 64-bit support in Tcl/Tk? I was thinking of making 64-bit native G5 and Xeon builds of Pd, once everything is release. That said, does the "--enable-threads" thing do anything for us? .hc ------------------------------------------------------------------------ All information should be free. - the hacker ethic

1 0

branch-v0-39-2-extended created
by Hans-Christoph Steiner 14 Dec '06

14 Dec '06

FYI: I created a release branch called branch-v0-39-2-extended last night following the instructions here: http://puredata.org/docs/developer/Branching I will be making commits to all sections of that branch in order to fix things and get things working. Hopefully, these changes can make it into MAIN too. (So far I have committed pdp and pidip fixes) .hc ------------------------------------------------------------------------ ¡El pueblo unido jamás será vencido!

3 8

PD crash patch (1607030), comments?
by Steffen 12 Dec '06

12 Dec '06

Hey, In the risk of appearing impatient, i'd just like to know if anyone else experience that Pd crash when doing the following (related to [1]): 1- make a sub-patch or abstraction with GOP enabled (or use the attached test patches) 2- open the sub-patch or abstraction 3- close the window holding the sub-patch or where the abstraction is used Pd crashes? It's important not to close the sub-patch or abstraction before doing step 3. [1] https://sourceforge.net/tracker/? func=detail&atid=478070&aid=1607030&group_id=55736

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Re: [PD-dev] mrpeach/net/tcpserver
by martin.peach＠sympatico.ca 12 Dec '06

12 Dec '06

I get: if(argc < 2) on line 420, so I don't get it... But whatever it really is, go ahead and change it if you think it works. Martin > > De: IOhannes m zmoelnig <zmoelnig(a)iem.at> > Date: 2006/12/11 lun. PM 12:55:42 GMT-05:00 > À: pd-dev <pd-dev(a)iem.at> > Objet: [PD-dev] mrpeach/net/tcpserver > > i just discovered a bug in mrpeach/net/tcpserver > the break in mrpeach/net/tcpserver.c:420 effectively makes the > "broadcast" message useless. > is there any reason for this? > > can i change the file? > > mfg.adr > IOhannes > > _______________________________________________ > PD-dev mailing list > PD-dev(a)iem.at > http://lists.puredata.info/listinfo/pd-dev >

2 1

comb filter freq response
by Conor J Curran 11 Dec '06

11 Dec '06

Hi all, For the past few weeks I have been working on a custom type reson comb filter external. Using SndObj dsp library I have two comb filter( one on each channel left and right). There is a low pass filter placed in serial after each comb. The effect til now is working quite well. But I think my understanding of the freq response of the comb filter is a little hazy hence its implementation a little naive. My understanding is that the freq response is determined by the position of the Poles on the unit circle. L the number of samples delay (in sample time => t ( in secs) / the sampling rate) also denotes the number of poles there will be. Up until now I have used a simple calculation to convert the freq response in hertz to the number of samples delay (L). float L = Samplerate()/fInput; This is where my understanding is lacking. My assumptions are as follows: The freq which is passed in corresponds to the fundamental of comb filter response i.e. the first peak. To achieve this I simply divide the SR by this freq to get the first subsequent multiples of the position of the poles. Am I looking at this the wrong way? best regards, Conor

1 0

mrpeach/net/tcpserver
by IOhannes m zmoelnig 11 Dec '06

11 Dec '06

i just discovered a bug in mrpeach/net/tcpserver the break in mrpeach/net/tcpserver.c:420 effectively makes the "broadcast" message useless. is there any reason for this? can i change the file? mfg.adr IOhannes

1 0

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Pd-dev December 2006