GEM-dev September 2007

gem-dev@lists.iem.at

19 participants
20 discussions

[pix_texture]: how to make 'mode 0' default?
by Roman Haefeli 29 Sep '07

29 Sep '07

hi all while i am at tweaking gem a bit, the next question: is it easily feasible to change the code of [pix_texture] so, that it has 'mode 0', when instantiating such an object. having to put a 'mode 0', whenever i load a help-patch is quite a pain. roman ___________________________________________________________ Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de

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GemPBuffer.cpp:304: error: invalid conversion from 'long int*' to 'GLint*'
by Hans-Christoph Steiner 26 Sep '07

26 Sep '07

I was trying to build Gem on my Mac Book Pro 3rd gen (nvidia): Result: Target : Gem.pd_darwin Objects : Base Controls Geos Manips Nongeos Particles Pixes openGL Configuration: Compiler : g++ CXXFLAGS : -I/sw/include -g -O2 -fPIC -freg-struct- return -Os -falign-loops=32 -falign-functions=32 -falign-jumps=32 - funroll-loops -ffast-math -mmmx -fpascal-strings : -I/sw/include -I/sw/include/FTGL -I/sw/ lib/freetype219/include -I/sw/lib/freetype219/include/freetype2 INCLUDES : -I/usr/include/FTGL -I/usr/include/ freetype2 -I/Users/hans/auto-build/pd-extended-release/pd/src DEFINES : LIBS : -L/sw/lib -ldl -lz -lm -lpthread -L/ Users/hans/auto-build/pd-extended-release/pd/bin : -L/sw/lib/freetype219/lib -L/sw/lib -lz - lfreetype -lftgl LDFLAGS : -dynamiclib -mmacosx-version-min=10.3 - undefined dynamic_lookup -framework QuickTime -framework Carbon - framework AGL -framework OpenGL : Strip : strip -x Install path : /usr/local pure-data: version : 0.39 openGL : using version : (default) using ARB-extensions : yes using NV-extensions : no used optional libraries: font-rendering : FTGL image-support use ImageMagick : no (forced) use TIFF : no (forced) use JPEG : no (forced) video-support use mpeg : no (forced) use mpeg-3 : no (forced) use QuickTime : yes (framework) use aviplay : no (forced) use ffmpeg : no (forced) input-support use v4l : no use ieee1394 : no (forced) misc using ARB-extensions : yes Now run make ... make -C /Users/hans/auto-build/pd-extended-release/Gem/src make -C Base -j4 [snip] g++ -c -I/sw/include -g -O2 -fPIC -freg-struct-return -Os -falign- loops=32 -falign-functions=32 -falign-jumps=32 -funroll-loops -ffast- math -mmmx -fpascal-strings -I/sw/include -I/sw/include/FTGL -I/sw/ lib/freetype219/include -I/sw/lib/freetype219/include/freetype2 - I.. -I/usr/include/FTGL -I/usr/include/freetype2 -I/Users/hans/auto- build/pd-extended-release/pd/src GemMan.cpp -o GemMan.o g++ -c -I/sw/include -g -O2 -fPIC -freg-struct-return -Os -falign- loops=32 -falign-functions=32 -falign-jumps=32 -funroll-loops -ffast- math -mmmx -fpascal-strings -I/sw/include -I/sw/include/FTGL -I/sw/ lib/freetype219/include -I/sw/lib/freetype219/include/freetype2 - I.. -I/usr/include/FTGL -I/usr/include/freetype2 -I/Users/hans/auto- build/pd-extended-release/pd/src GemModelData.cpp -o GemModelData.o g++ -c -I/sw/include -g -O2 -fPIC -freg-struct-return -Os -falign- loops=32 -falign-functions=32 -falign-jumps=32 -funroll-loops -ffast- math -mmmx -fpascal-strings -I/sw/include -I/sw/include/FTGL -I/sw/ lib/freetype219/include -I/sw/lib/freetype219/include/freetype2 - I.. -I/usr/include/FTGL -I/usr/include/freetype2 -I/Users/hans/auto- build/pd-extended-release/pd/src GemPBuffer.cpp -o GemPBuffer.o g++ -c -I/sw/include -g -O2 -fPIC -freg-struct-return -Os -falign- loops=32 -falign-functions=32 -falign-jumps=32 -funroll-loops -ffast- math -mmmx -fpascal-strings -I/sw/include -I/sw/include/FTGL -I/sw/ lib/freetype219/include -I/sw/lib/freetype219/include/freetype2 - I.. -I/usr/include/FTGL -I/usr/include/freetype2 -I/Users/hans/auto- build/pd-extended-release/pd/src GemPathBase.cpp -o GemPathBase.o GemPBuffer.cpp: In constructor 'PBuffer::PBuffer(int, int, int)': GemPBuffer.cpp:304: error: invalid conversion from 'long int*' to 'GLint*' GemPBuffer.cpp:304: error: initializing argument 3 of 'CGLError CGLChoosePixelFormat(const CGLPixelFormatAttribute*, _CGLPixelFormatObject**, GLint*)' make[3]: *** [GemPBuffer.o] Error 1 ------------------------------------------------------------------------ ---- Using ReBirth is like trying to play an 808 with a long stick. - David Zicarelli

3 7

GEM pix_movie (?) eating up all CPU only on one machine
by matteo sisti sette 26 Sep '07

26 Sep '07

Hi, I have tested the attached patch on quite a few different machines, all of them PC's with Windows XP with the very same version of GEM, Gem_cvs_2006_4_NT.dll with quicktime support and NO directshow support (using this one because it is the only one I could find that handles DV-PAL videos without crashing from time to time). It is simply a pix_movie connected to a rectangle; I use DV-PAL mov's as video files. Up to now, it worked perfectly on more than 5 machines, but now, on a new laptop, I have the following problem: It eats up 100% of one CPU (on a dual core) without being able to render at full framerate. It seems like it is not using the GPU for some reason, doesn't it? Note that one of the many machines on which it does work well is almost identical to this one on which it eats up one cpu and runs slow. Machine experiencing the issue (laptop): -CPU: Intel Core Duo 2.2 GHz -GPU: Mobile Intel 965 Express Chipset A machine not experiencing the issue (laptop from the same vendor): -CPU: Intel Core Duo 2.0 GHz -GPU: Mobile Intel 945GM Express Chipset Another machine not experiencing the issue (also a laptop from the same vendor): -CPU: Intel Core Duo 2.0 GHz -GPU: NVidia GeForce 8600M GT All machines have the same version of QuickTime 7.0 installed, and -in case this matters- the same version of the opengl32.dll file in the windows/system32 directory. Anyone has any clue? May it be a problem with the graphics chipset itself? Is it an incompatibility of some kind with openGL? Thanks in advance, m. -- Matteo Sisti Sette matteosistisette(a)gmail.com http://www.matteosistisette.com

1 0

[pix_film] issues on linux
by Roman Haefeli 26 Sep '07

26 Sep '07

hi all there was a thread these days on pdmtl mailing list about how to encode movie files, so that they can be easily read by [pix_film]. it turned out that this is not an easy task at all. some reported crashes, when loading movie-files. here on my computer i can load most of the files, though cpu goes up to 100%, when turning rendering on, even when displaying constantly the same frame. cpu goes down, when rendering is turned off again. the only movie i found, that was working without issues, is 'anim-1.mov' that is shipped with gem. but also the other movie-files from the data-folder eat my cpu, when loaded. i tried to locate the problem by compiling gem with support only for certain libraries instead of all. but any mjpeg/mov file i tried was eating my cpu, no matter if it was loaded by libquicktime or by ffmpeg (btw: is there a better way to force a certain library to use instead of compiling gem with support only for one library?). in any tests i did, i didn't encounter any errors in pd-window. i'd like document these issues a bit better in order to provide you detailed and usefull information. though i am actually uncertain, what is the best way to do that, since there are so many variables like different libraries, different versions of these libraries, different codecs/formats, even movies with the same format/coded behave completely different sometimes. any hint on that is much appreciated. also i'd like to know, if [pix_film] is working well, what libraries have you enabled, what versions of this, how to you encode movies to be played by [pix_film]. cheers roman ___________________________________________________________ Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de

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summer of code stuff better pix_ treatment
by B. Bogart 25 Sep '07

25 Sep '07

Hey Johannes, I just wanted to hear what the scope of the Gem summer of code stuff is. I've not had a chance but my cx88 cards are not working properly in gem using pix_video (they will only do 256x256 in Gem, but 640x480 in xawtv) Also a few strange things happen with pix_video (like resetting the fm tuner, sending sometimes I can only send the appropriate values for a device once "reseting" pix_video by instantiating it. I just just curious if pix_video was part of the new coding project. Also I've been thinking about a few things in gem that would be better integrated for pixes, in particular I think it should be easy and consistent to pass data to and from the following sources: * file on disk * sequence of files on disk * pix_multiimage * pix_buffer * frame buffer * texture buffer for a particular gemlist I was speaking to Alexandre Quessy about it at the pdcon. Hope all is well, B. Bogart

3 4

pdlua + luagl + Gem (was: automated drawing in gem?)
by Claude Heiland-Allen 24 Sep '07

24 Sep '07

Hello GEM-dev! IOhannes m zmoelnig wrote: > nevertheless, ask claude :-) I just subscribed to this list, I'm reading the recent archives, so if I miss something in particular then let me know. Apologies for breaking your threading mail clients ;) IOhannes m zmoelnig wrote: > the example works, but pdlua gives a lot of warnings and you cannot yet > create a full-fledged (that passes on the GemList) gem-object in lua > (both things because of the way pointers are handled) True. I'm not sure what to do about pointers, on the one hand pd internal objects seem to do some kind of mystic voodoo for pointers, on the other many (all?) external objects just do whatever they like. I guess I'll follow the crowd and handle pointers the way other externals do. marius schebella wrote: > when I create a [lua] object in pd i get an error I don't have any Mac OS X machines to test with, so it's probably a bug in the pdlua Makefile. I'll look at some other Makefiles to see what special voodoo OS X requires (I think the bug is that lua.pd_darwin should be able to see symbols in the pd executable, but can't for some reason). Moreover, creating a [lua] object isn't supposed to work yet (it's intended to be used with -lib lua) - but I will add that feature soon. Also, I just want to note that pdlua is very fresh/new/alpha, and will probably change incompatibly at various points until something vaguely useable emerges. Thanks, Claude -- http://claudiusmaximus.goto10.org

4 9

automated drawing in gem?
by rick snow 23 Sep '07

23 Sep '07

Hello all, Thanks for all your amazing work on gem and continued development and exploration! I'm no "developer" but I use both both pd and gem for music and visual projects on a daily basis. Does anyone know if it is possible to "draw" using pd/gem? -meaning create a trail of changed colored pixels that are "triggered" from a moving point and persist until programmed to disappear or "cleared"- best wishes from Romania (currently) and San Diego usually, Rick

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Re: [GEM-dev] [PD] GEM to SVG/EPS/PDF
by Patrice Colet 22 Sep '07

22 Sep '07

Hello, I think there is nothing to loose with asking if someone did go any further into this: http://lists.puredata.info/pipermail/pd-list/2006-11/043865.html Thanks a lot for any hint, :).

1 0

pwc problem / help appreciated
by Roman Haefeli 22 Sep '07

22 Sep '07

hi all <skip_if_no_interest_in_backgroundstory> i have a philips webcam, the spc 900nc, which i would like to use with gem. since there is the new pwc driver[1], the cam can be accessed over v4l and thus with gem. the problem is that certain, for me very important, settings are pwc specific, which means the only way to set them is using setpwc, which also seems to work fine at first glance. but there is a silly little problem with some settings, e.g automatic gain control: i can set the gain manually with setpwc, but when i launch another program afterwards, that accesses the cam (e.g. Gem), the cam/driver forgot about these settings and gain is set to 'auto' again. there are two ways to overcome this problem. 1) the probably more obvious solution would be to implement all pwc specific features into [pix_video], so that all these settings can be set from within gem. besides that it seems very awkward to implement driver specific options in [pix_new], it is probably also a lot of work. 2) the other approach would require only very tiny changes to pix_videoNEW.cpp . philips cams are usually shipped with some kind of non-volatile ram, where settings can be stored and restored. now we come to the interesting point: if [pix_video] would send a 'restore' signal to the pwc driver, whenever rendering is turned on (is the same as 'whenever [pix_video] accesses the cam, right?). this would mean, that i could set all required settings beforehand using 'setpwc' with the option to save all settings into non-volatile ram. when running gem afterwards, all settings would be restored and finally i would be able to have a constant gain, which is fundamental for some tasks (e.g working with [pix_background]) [1] http://saillard.org/linux/pwc/ </skip_if_no_interest_in_backgroundstory> ------------------------------------------------- i want to ask you guys, if you could help me add the necessary changes to pix_videoNEW.cpp. i have the feeling, that it is a rather simple task (i might be wrong), but i am unfortunately not a c nor cpp coder. basically it would be transfering the function, that does create the 'restore' signal, from setpwc.c to pix_videoNEW.cpp . please do understand me right, this isn't a request about including the chances to Gem-cvs, but just for me, since i cannot really use the cam with gem yet. you'll find setpwc.c here: http://romanhaefeli.net/setpwc.c and you probably need to include this in pix_videoNEW.cpp : http://romanhaefeli.net/pwc-ioctl.h have a look at line 323 of setpwc.c, there you can see, what setpwc does to let the cam restore the settings from ram. if this little thingie could be transferred to gem, it would solve all my ubs-cam problems. i really appreciate your help here roman ___________________________________________________________ Der frühe Vogel fängt den Wurm. Hier gelangen Sie zum neuen Yahoo! Mail: http://mail.yahoo.de

4 20

wolfram mathematica fonts support
by Patrice Colet 21 Sep '07

21 Sep '07

Hello, I hope I am adressing this mail to the right mailing-list. I've got problems with finding FTGL compatible math fonts, could you help me for adding mathematica fonts support or any other efficient font for writing in gemwin the famous Maxwell equations?

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GEM-dev September 2007