Squeak-dev May 1998

squeak-dev@lists.squeakfoundation.org

82 participants
182 discussions

Squeak 2.0Beta + MIDI
by stp＠limbo.create.ucsb.edu 10 May '98

10 May '98

Hello, I've up-loaded a Squeak 2.0 Beta VI/VM with the minimal MIDI files-in, as well as complete ST and C sources to the directory ftp://ftp.create.ucsb.edu/pub/Squeak/2.0Beta/MIDI This is just the minimal MIDI support (See the examples in class MIDIPort), not the full Siren (which will follow in a few days). I'm also updating my STP11 goodies package, so STP12 will be along real soon. Comments are invited... stp _ Stephen Travis Pope _ Center for Research in Electronic Art Technology (CREATE) _ Dept. of Music, Univ. of California, Santa Barbara (UCSB) _ stp(a)create.ucsb.edu, http://www.create.ucsb.edu/~stp/

1 0

Re: Squeak 2.0 Beta Release (feedback)
by Andreas Raab 10 May '98

10 May '98

Hallo Reinier, > SerialPort und MIDI luft! Ja, da konnte ich nur hoffen ;-) Der MIDI port luft momentan aber nur mit vollstndigen und kurzen Kommandos. Ich habe jetzt aber bereits eine bessere Variante fertig. Mit dem SerialPort ist das noch so eine Sache. Ich habe momentan kein Gert mit dem ich die verschiedenen Handshakes testen kann; deswegen bin ich da nicht so sicher. > Zuerst vermiþte ich die 'Run full screen' unter F2, habe sie aber wieder > gefunden unter help... > Mega, daþ es ein Primitive geworden ist. Jepp, John war so begeistert davon, daþ er es in ein Primitiv gepackt hat. Ich muþte ihn dann erstmal aufklren, daþ die Idee eigentlich von Dir stammt. > Ich hatte ein Protection Fault beim Verlassen von Squeak (in USER.EXE). Ich > glaube das knnte etwas mit Form>>primPrint... zu tun haben. Ich habe > nmlich versucht zu drucken, bekam aber eine Fehlermeldung von Windows > (Unable to spool ''). Hmm ... merkw¸rdig. Sowas sollte sollte die VM eigentlich nicht umbringen. Ich glaube eher, daþ da irgendwo anders ein Problem liegt, da mir die VM auch schon mal hart abgest¸rzt ist, wenn ich Squeak ¸ber den Windows Close-Button beendet habe. Wahrscheinlich ist mein Exit-Code nicht ganz sauber. > Die Quickshot Aktion finde ich prima! Naja, ich dachte halt, daþ es eine Reihe von Leuten gibt, die mal einen Blick auf die 2.0 beta werfen wollen. Und da dies mit einer 1.31 VM eher beschwerlich ist (das Starten dauert wegen der Bitmap-Dekompression ewig), habe ich mal eben den aktuellen Stand auf den Server geschoben. Da wird aber noch krftig dran gewerkelt. > Gr¸þe, Reinier van Loon (ohne 'der' ;-)). Ah, sorry. Das "der" hat sich bei mir irgendwie festgesetzt. Wahrscheinlich, weil ich finde, daþ es besser klingt ;-)) Ciao, Andreas -- Linear algebra is your friend - Trigonometry is your enemy. +===== Andreas Raab ============= (raab(a)isg.cs.uni-magdeburg.de) =====+ I Department of Simulation and Graphics Phone: +49 391 671 8065 I I University of Magdeburg, Germany Fax: +49 391 671 1164 I +=============< http://isgwww.cs.uni-magdeburg.de/~raab >=============+

1 0

Re: Tips for Squeak 2.0?
by Tim Olson 10 May '98

10 May '98

>One more thing: I couldn't find the "put" option in the text pane of >FileList. Where has it gone? In 2.0Beta it has been changed so that accepting the change (command-s) will perform the put, rather than doing it in two seperate steps (accept, put) as before. -- tim

1 0

Tips for Squeak 2.0?
by Mark Guzdial 10 May '98

10 May '98

I'm trying to use some of the cool new Squeak 2.0 features. - How do I open a full-screen Squeak display? - In a new Morphic world, I couldn't figure out how to open the main MorphicWorld menu. Whenever I clicked/option-clicked/command-clicked, I just seemed to get the handles. But what I've played with so far is really cool! The Construction and Fabrik worlds are going to keep me busy exploring for awhile. Thanks! Mark -------------------------- Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280 (404) 894-5618 : Fax (404) 894-0673 : guzdial(a)cc.gatech.edu http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html

2 1

Questions about the Squeak MIDI Primitive Interface
by stp＠limbo.create.ucsb.edu 10 May '98

10 May '98

John Maloney and Andreas Raab had a few questions about the MIDI interface code, and I thought it'd clear up a few misunderstandings to clarify these issues for other users... John asked: > 1. Should we provide a way to specify which hardware ports to > open for MIDI? For example, on a Mac I might want to open > a MIDI port on the Printer Port but leave the Modem Port > available for some other application... This is an OS (OMS) issue. OMS can be set up to talk to one or the other port. By default, the Squeak prims open all devices on the configured port. If you can think of a platform-independent way of distinguishing among ports, tell me. > 2. Shouldn't the "ReadMIDI" functions take a device index? > Or is your intent to merge the input streams from all open > devices? Input is merged from all sources in the simple version. (Hey, that's MIDI) > 3. Shouldn't ReadMIDIPacket take a buffer length as well as > a pointer to the buffer? Can it be used to read long system > exclusive messages? Gee, you're right! I'll change this today and post a new version... > If MIDIControllerCache is not supported, > or turned off then will all data be reported through this > primitive? Yes, if controller caching is off, then every controller change message will trigger a semaphore and be delivered through the readPacket interface. > 4. In the ioctl list, I think MIDIHasBuffer implies MIDIHasClock, > doesn't it? MIDIHasClock means that there's a separate settable clock in the driver, which may not be the case for all drivers, even some that have a timestamped output buffer. > The MIDIInstalled query may be superfluous; one > can detect that there is no MIDI support because the ioctl > primitive will result in a primitive failure, say, on a > query of the version number. This tests not only that the VM is OK, but also that the MIDI device driver is present. (You can certainly run the MIDI VM on a Mac that's missing the OMS extensions.) > It looks as though this interface trucks in MIDI "events" > rather than in raw bytestreams. The output prims take "raw" ByteArrays. The MIDIPacket object that's passed to the read prim. is typeless; it's just a holder for a ByteArray and a timestamp (and possibly some flags). I don't assume a MIDI parser in the driver. > Here are my thoughts on your questions: > Re: How to handle socket output? Do we need a call for setting > up connections for output to a specific machine/port? Should > MIDI over sockets be removed from the 'minimal' standard? > I'd prefer to drop this from the minimal interface, although you > can leave the parameter there as a placeholder. This is done. Andreas wrote, > 1) If I understand your implementation correctly, you open *all* available > MIDI devices. Do you really think that this is a good idea?! On Win32 > it would mean that no other app can access the MIDI ports after > sqOpenMIDI has been issued. This might be a problem if people want to > use one of the ports from Squeak and another one from a different app. The driver opens all devices that are known to the OS. I assume that the OS-level driver can merge streams. Is this impossible on Windows? On the MAc and SGI, it's normal to log in to the MIDI driver and open all devices. > 2) How would a time-stamped output buffer be used if there is one? There's another output primitive (sqMIDIPlaySizeOnAt) that takes a timestamp in msec. > 1) The sqGetMIDIDeviceName() function should be modified to pass a maximum > length of the name pointer. Fix coming. > 2) Are you dropping incoming long commands?! I've not seen any place where > long commands are recorded. The OMS callback gets only the short > messages (which is ok since they're time critical) but what happens to > any long commands?! See above--you're right. The Smalltalk side of the code re-tries the read call with a larger packet if we receive a packet with > 3 bytes of data, but the driver can't handle it (yet). Thanks to you both for the questions... stp _ Stephen Travis Pope _ Center for Research in Electronic Art Technology (CREATE) _ Dept. of Music, Univ. of California, Santa Barbara (UCSB) _ stp(a)create.ucsb.edu, http://www.create.ucsb.edu/~stp/

1 0

RE: Squeak 2.0 on WindowsCE
by Alejandro F. Reimondo 10 May '98

10 May '98

Hi Andreas, I don't have the sources here (at home). I can have a look at 2.0 VM sources on monday. Changes are not minimal for me; and development for WinCE is really very hard; debuggin is near to unusable. When I consider to have a "working" version of the 1.3x VM I will send them to you to integrate them. I don't know how much effort I will need to pay to build the 2.0 version, but I'll try. Thanks, Ale. ---------- Desde: Andreas Raab[SMTP:raab@isgnw.cs.Uni-Magdeburg.DE] Enviado el: Sábado 9 de Mayo de 1998 15:55 Para: squeak(a)cs.uiuc.edu Asunto: Re: Squeak 2.0 on WindowsCE Ale, > What can I do? continue with 1.3 or wait to 2.0 ... Why don't you just have a look at the pre-released 2.0 sources of the Win32 VM? If you send me the necessary modification I'll be happy to integrate them (unfortunately I have no WinCE SDK, so I don't know what is supported and what isn't). Bye, Andreas -- Linear algebra is your friend - Trigonometry is your enemy. +===== Andreas Raab ============= (raab(a)isg.cs.uni-magdeburg.de) =====+ I Department of Simulation and Graphics Phone: +49 391 671 8065 I I University of Magdeburg, Germany Fax: +49 391 671 1164 I +=============< http://isgwww.cs.uni-magdeburg.de/~raab >=============+

1 0

RE: Linear Algebra
by Jesse, Roland 09 May '98

09 May '98

Eric, eguevara(a)dc.uba.ar wrote: > If you want something or everything of this stuff, please let me know an > i'll send it to you (gzipped), as a change set. I would love to get as much of this package as you are willing to share. IMHO it would be a great idea if you could offer an URL for it or submit it to the squeak archive. -- Roland Jesse <rjesse(a)uwsp.edu> http://www.apfel.de/~jesse/ Senator College Letters and Science, UWSP Student Government Association

1 0

LUDecomposition?
by Yasuhiro Kurahara 09 May '98

09 May '98

Hi, I obtained the following package from the Smalltalk Archive http://st-www.cs.uiuc.edu/archive.html. > arithmetic > > Heavy duty math support, including matrices > Kurt Hebel (hebel(a)uinova.cerl.uiuc.edu) > > pub/Smalltalk/st80_r4/arithmetic.st In it, LUDecomposition is used; "Use the LU decomposition to calculate the matrix inverse." ^ LUDecomposition inverseOf: self The file arithmetic.st does not include LUDecomposition. Does anyone know where it is? Regards, Kurahara

2 1

Squeak 2.0 Beta Release
by Dan Ingalls 09 May '98

09 May '98

Folks - I have just placed a beta release of Squeak 2.0 on the uiuc server. (Hey, it's still Friday in Hawaii ;-) It is stored in mac binary form as a self-extracting archive containing image, changes, and a new VM (Mac only). Although this is just a beta release, it would be nice if someone else could see to the appropriate repackaging for the other major platforms. You should have a new VM. While the image may not crash on an old VM, every bitmap gets expanded on access and compressed at snapshot, and this may be slow on a 1.31 VM. This is a Beta release of Squeak. It is intended mainly for testing and so that developers can get started now on converting any code that has been rendered incompatible since the last major release. Please DO read all the explanatory windows so that you will understand what to expect. Also, please do NOT be alarmed by the bulk of this release. We have intentionally left lots of stuff in, and have not condensed source code so that developers can trace old versions if necessary (the changes file is 8MB). We have also not had time to update the various shrinking removals that will be supported in the final version of release 2.0. Here is a summary of what is included in this release: More responsive cursor tracking in Morphic Flex morphs (meaning any morph can be scaled and rotated. High-speed compression and a compact forms package We have improved Squeak's bitmap compression and compiled it into a primitive. It is possible to compress every form in the system, and only decompress when BitBlt acutally needs it. Project zooms As an option, when you enter a project it zooms visually. You can turn this off to save time and space, by choosing preferences... in the help... menu, and changing showProjectZoom to false A Mac interpreter that supports full-screeen display Numerous Swiki tweaks Numerous improvements to music Many numeric cleanups that have been discussed on the Squeak list Thanks especially to Hans-Martin Mosner, Tim Olson, Wim Boot, and Leandro Caniglia and friends A fast string comparison primitive And... Yes! Support for serial ports. In addition you will find several works in progress in this image. We hope to say more about these, and maybe even document them when 2.0 is officially released. Enjoy - The Squeak Team

2 1

Re: Squeak 2.0 Beta Release
by CYNTHIA NELSON 09 May '98

09 May '98

At 06:17 PM 5/9/98 +0200, you wrote: > >Wait for a few days until the necessary modifications for the Win32 VM >have been added. I'm working on it. > > Andreas Hi Andreas, Thank you for the advice. I'll wait a couple of days and probably save myself some time. Cindy Nelson **************************************************************************** Cynthia L. Nelson Phone: (770) 382-8627 202 Jimmie Nelson Rd SW Fax (770) 382-8630 Kington, GA 30145 e-mail: cindynelson(a)abraxis.com

1 0

← Newer
1
...
11
12
13
14
15
16
17
18
19
Older →

Jump to page: