Pd-dev December 2007

pd-dev@lists.iem.at

28 participants
143 discussions

CVS to SVN ?
by Russell Bryant 31 Jan '08

31 Jan '08

Greetings, I really don't intend to start a SCM war here, but has the discussion of switching to using svn on sourceforge instead of cvs ever come up before? Instead of rambling on about reasons why I think svn would be nicer than cvs, I am curious if people have any reasons _not_ to switch. The amount that it would increase my happiness when working with the pure-data repository is enough that I would volunteer to put forth the leg work to do the conversion, and to write a quick guide for developers with commit access, if people were interested and willing to let me do it. :) I help admin a fairly large svn server (svn.digium.com and svncommunity.digium.com), and I found the following guide for doing the conversion for a sourceforge project. It looks fairly easy to do ... https://sourceforge.net/docs/E09 -- Russell Bryant

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o profiling PD
by B. Bogart 18 Jan '08

18 Jan '08

Hey all, I'm trying to track down a strange baseline CPU usage in a patch of mine. Basically I load the patch and it will show a certain baseline CPU amount, even with audio off, no rendering, and no control messages flowing (except for those initially set off by the loadbangs). loading with -noloadbang does not show the baseline CPU. The amount of CPU seems proportional to the number of abstractions in the patch (about 800 kills the machine at 90%+, 400 uses about 40%) So I'd like to see what PD functions are using up all the CPU. I've compiled a PD with ./configure --enable-debug and I do see the -g in the makefile, but oprofile still only shows "pd" as a blackbox. For Gem I needed to do something with the "strip" stuff, but I don't see any corresponding features in the PD makefile. Any suggestions? Thanks all, B. Bogart

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Introducing myself
by Russell Bryant 02 Jan '08

02 Jan '08

Greetings, I really like how this list encourages introductions of people that are new to the development community. It's nice to see where other people are coming from. A few years ago, I started working on the open source project, Asterisk (http://www.asterisk.org). Asterisk is an open source telephony applications platform. It is most often used as a typical phone system, but it is really a toolkit where we try to make it possible to do whatever you want to with a phone call. While in school, I started working part-time for Digium, the company that sponsors Asterisk. I have been working full time for Digium since January of 2007. I now hold the position of Senior Software Engineer, and Open Source Team Lead. About a month ago, I visited New York University's ITP program. I was there to meet people that had done some extremely creative projects that involved Asterisk. I was looking for new ideas, or things that I could work on to make Asterisk easier to use as a part of a larger creative project. Whlie I was there, I briefly met Hans-Christoph Steiner. He gave me a quick rundown of pure-data as we walked down the street. We chatted about how there could be some interesting applications between Asterisk and Pd. So, I have been looking at it since then. I have since written a Jack interface for Asterisk so that I can hook up any number of phone calls to other applications that support Jack. I am currently trying to figure out how to make a Pd patch to do it. :) While learning about Pd, I have started making some contributions to the source. I have been reading code to learn how things work in Pd. Along the way, I have been making little fixes to problems as I notice them. I am "russellbryant" on the sourceforge patch tracker. Most of my changes so far have been little bugs in string buffer handling. However, I do have one sourceforge patch pending that fixes a remotely exploitable stack buffer overflow (marked as private so it can only be viewed by project members). I'm interested in commit access, if and whenever other project members would feel comfortable with it. Mainly, I'm just interested in using it for smaller bug fixes that are obvious enough for direct commit. I am now starting to look into the implementation of the various parts of existing jack support in Pd. It may be nice to be able to work on any larger changes in a developer branch or something. (However, before I started committing anything, I would like to help draft a patch workflow document, that describes what gets committed where, when, and by whom, so that I can ensure that I don't step out of bounds. Please let me know if something like this exists, and I missed it.) Anyway, thanks to everyone who has contributed to Pd. This is a really cool application. I hope that I can contribute something useful to the project. -- Russell Bryant

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[ pure-data-Patches-1551825 ] autoscrollbars
by SourceForge.net 02 Jan '08

02 Jan '08

Patches item #1551825, was opened at 2006-09-04 01:17 Message generated for change (Comment added) made by millerpuckette You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1551825&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: puredata Group: bugfix Status: Open Resolution: None Priority: 7 Private: No Submitted By: oskude (oskude) Assigned to: Miller Puckette (millerpuckette) Summary: autoscrollbars Initial Comment: autoscrollbars patch for pd cvs. dunno how good the code is, but it works :) ---------------------------------------------------------------------- >Comment By: Miller Puckette (millerpuckette) Date: 2007-12-17 20:23 Message: Logged In: YES user_id=313747 Originator: NO oops,. then un-took it again, since it was acting funny (scrollbars appeared and disappeared constantly when clicking inside the canvas help window) ---------------------------------------------------------------------- Comment By: Hans-Christoph Steiner (eighthave) Date: 2007-11-13 16:02 Message: Logged In: YES user_id=27104 Originator: NO works for me, checking into branch-v0-40-extended (FYI: this patch replaces the old one) ---------------------------------------------------------------------- Comment By: oskude (oskude) Date: 2007-11-13 15:39 Message: Logged In: YES user_id=1383707 Originator: YES pd_autoscrollbars_2007-11-14.patch - should fix #1830767 (Slide bars don't update automatically) - moved code to pdtk_canvas_getscroll, thanks for the tip! + a new, empty patch should not have scrollbars File Added: pd_autoscrollbars_2007-11-14.patch ---------------------------------------------------------------------- Comment By: Hans-Christoph Steiner (eighthave) Date: 2007-11-12 23:29 Message: Logged In: YES user_id=27104 Originator: NO I think this functionality should probably be incorporated into pdtk_canvas_getscroll in u_main.tk since it gets called on button release. This should help with bug #1830767 ---------------------------------------------------------------------- Comment By: Hans-Christoph Steiner (eighthave) Date: 2007-11-12 16:59 Message: Logged In: YES user_id=27104 Originator: NO This patch works well for resize events, but it prevents the scrollbars from working properly when cutting, pasting, and adding objects. I'd like to keep it in, but it needs to be fixed. See bug #1830767 ---------------------------------------------------------------------- Comment By: Hans-Christoph Steiner (eighthave) Date: 2006-09-18 06:19 Message: Logged In: YES user_id=27104 One other thing that would be fixed ideally. This problem existed before this patch, but its related. If a patch is bigger than the window, the scrollbars are not displayed when that patch is opened. You have to resize the window, then the scrollbars will display. ---------------------------------------------------------------------- Comment By: Hans-Christoph Steiner (eighthave) Date: 2006-09-16 10:07 Message: Logged In: YES user_id=27104 Very nice! My only comment is that it is a couple pixels off on Mac OS X 10.4/Pd-extended 0.39.2-test5. I can cover about 3 pixels before the scrollbars kick in. I added to the Pd-extended build system as pure-data/packages/patches/pd_autoscrollbars-0.40-pre.patch It will be in the nightly builds starting tomorrow. ---------------------------------------------------------------------- Comment By: oskude (oskude) Date: 2006-09-15 01:09 Message: Logged In: YES user_id=1383707 this patch removes scrollbars in a pd-patch canvas window when the content is smaller than the window size. and add scrollbars to pd-patch window if content bigger than window size. works individually for height(bottom scrollbar) and width(right scrollbar) ---------------------------------------------------------------------- Comment By: Hans-Christoph Steiner (eighthave) Date: 2006-09-13 12:26 Message: Logged In: YES user_id=27104 can you elaborate on what this patch does? ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1551825&group_…

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0.41-0 test 10 source notes
by Hans-Christoph Steiner 30 Dec '07

30 Dec '07

Here's something I noticed in s_main.c, it looks like you meant to have different font strings, but they are the same here: 62 #ifdef MSW 63 "Courier"; 64 #else 65 "Courier"; 66 #endif Also, the command line -help has the Bitstream font listed tho it looks like you are using Courier: 390 "-font-face <name> -- specify default font (default: Bitstream Vera Sans Mono)\n", .hc ------------------------------------------------------------------------ ---- 'You people have such restrictive dress for women,’ she said, hobbling away in three inch heels and panty hose to finish out another pink-collar temp pool day. - “Hijab Scene #2", by Mohja Kahf

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[ pure-data-Feature Requests-1859830 ] support IEEE math thruout (inf, -inf, nan).
by SourceForge.net 28 Dec '07

28 Dec '07

Feature Requests item #1859830, was opened at 2007-12-28 13:40 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478073&aid=1859830&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Priority: 5 Private: No Submitted By: Hans-Christoph Steiner (eighthave) Assigned to: Nobody/Anonymous (nobody) Summary: support IEEE math thruout (inf, -inf, nan). Initial Comment: Ideally, anywhere a float is valid, then inf, -inf, and nan should also be valid. For example, in [float] boxes as arguments, and in messages. http://lists.puredata.info/pipermail/pd-dev/2006-01/006054.html ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478073&aid=1859830&group_…

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[ pure-data-Feature Requests-1859828 ] use single-precision math functions on Mac OS X
by SourceForge.net 28 Dec '07

28 Dec '07

Feature Requests item #1859828, was opened at 2007-12-28 13:28 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478073&aid=1859828&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: puredata Group: None Status: Open Priority: 5 Private: No Submitted By: Hans-Christoph Steiner (eighthave) Assigned to: Nobody/Anonymous (nobody) Summary: use single-precision math functions on Mac OS X Initial Comment: On Mac OS X, Pd is using the double precision math functions even though Pd uses single precision floats. You can see it here: http://pure-data.cvs.sourceforge.net/pure-data/pd/src/x_arithmetic.c?view=m… Here's a previous discussion on this: http://lists.puredata.info/pipermail/pd-dev/2006-01/006042.html I don't think this would make a massive difference overall, but I'll bet it would make a significant difference for any patch using sin, cos, atan, atan2, sqrt, log, exp, fabs, or pow. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478073&aid=1859828&group_…

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[ pure-data-Bugs-1856583 ] Thumbnail creation is not working
by SourceForge.net 27 Dec '07

27 Dec '07

Bugs item #1856583, was opened at 2007-12-22 13:17 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478070&aid=1856583&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: pdpedia Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: Thumbnail creation is not working Initial Comment: ... ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478070&aid=1856583&group_…

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[ pure-data-Patches-1858772 ] Add a new Pd command line option, -autoload
by SourceForge.net 27 Dec '07

27 Dec '07

Patches item #1858772, was opened at 2007-12-26 21:41 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1858772&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: puredata Group: feature Status: Open Resolution: None Priority: 5 Private: No Submitted By: Russell Bryant (russellbryant) Assigned to: Nobody/Anonymous (nobody) Summary: Add a new Pd command line option, -autoload Initial Comment: I got tired of using the "-lib" option over and over, so I wrote a new option, "-autoload". This option allows you to specify a directory of externals. All externals found in this directory, and any sub-directories, will be automatically loaded. So, you can run pd using something like ... $ pd -autoload /usr/lib/pd/extra or a non-default location of externals where some have just been compiled, for example ... $ pd -autoload ~/src/pure-data/pd/extra So far, the patch has only been tested on Linux. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1858772&group_…

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[ pure-data-Patches-1848295 ] Fix small potential stack overflow
by SourceForge.net 26 Dec '07

26 Dec '07

Patches item #1848295, was opened at 2007-12-10 19:53 Message generated for change (Comment added) made by eighthave You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1848295&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: puredata Group: bugfix Status: Open Resolution: None Priority: 5 Private: No Submitted By: Russell Bryant (russellbryant) Assigned to: Miller Puckette (millerpuckette) Summary: Fix small potential stack overflow Initial Comment: Attached is a patch to fix another potential stack buffer overflow in s_main.c. I didn't send this over in private because I don't think it can be exploited in any useful way, so it's just a small bug. ---------------------------------------------------------------------- >Comment By: Hans-Christoph Steiner (eighthave) Date: 2007-12-26 16:45 Message: Logged In: YES user_id=27104 Originator: NO checked into branch-v0-40-extended ---------------------------------------------------------------------- Comment By: Russell Bryant (russellbryant) Date: 2007-12-10 21:41 Message: Logged In: YES user_id=1942915 Originator: YES Also, let me just clarify my original summary just a little bit. You can cause the overrun of the buffer by providing a really long input string to the -schedlib command line option. It's just not exploitable in such a way that it would be considered a security issue. ---------------------------------------------------------------------- Comment By: Russell Bryant (russellbryant) Date: 2007-12-10 21:38 Message: Logged In: YES user_id=1942915 Originator: YES I'm sorry for the stupid typo. That code is actually only compiled in for a Windows build (whenever MSW is defined), so I didn't notice. ---------------------------------------------------------------------- Comment By: Russell Bryant (russellbryant) Date: 2007-12-10 21:36 Message: Logged In: YES user_id=1942915 Originator: YES File Added: filename_overflow.patch2.txt ---------------------------------------------------------------------- Comment By: Hans-Christoph Steiner (eighthave) Date: 2007-12-10 20:18 Message: Logged In: YES user_id=27104 Originator: NO I am guessing there is a typo in that patch, since the new line also uses sprintf() instead of snprintf(): - sprintf(filename, "%s.dll", sys_externalschedlibname); + sprintf(filename, sizeof(filename), "%s.dll", sys_externalschedlibname); ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=478072&aid=1848295&group_…

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Pd-dev December 2007