jazzplusplus-devel — Discussion Forum for Jazz Developers

Re: [jazzplusplus-devel] Core dump update

[joakim v. <jo...@ve...>]

It appears I'm running 3.2.2, and it's there as well.

/Joakim

Patrick Earl wrote:

>Ya, that sounds like a great candidate for a FAQ entry.  Just need to 
>make sure that any binaries we create are compiled with a sane 
>compiler.
>
>3.3.3 suffers from the segfault as well.  I haven't tried it on 3.4 
>since I'm waiting for Debian to move it from experimental to 
>unstable.
>
>        Patrick
>
>On Tuesday 30 March 2004 10:57, Dave Fancella wrote:
>  
>
>>On Wednesday 31 March 2004 04:20 am, Matt Kelly wrote:
>>    
>>
>>>This kinda sucks, because it will place compiler requirements on
>>>JAZZ (and Audacity, and......).  I hate it when an app requires a
>>>certain compiler version to compile.  Ack.  Pthphfffft.  It tends
>>>to make people more hesitant to try an app.
>>>      
>>>
>>To be honest, I'll bet we can safely ignore it and it'll go away. 
>>;)  I'm thinking that if a later version of GCC is known to work
>>fine with wxGTK, the distributions will be picking it up, of
>>course.  We just make sure that we've saved all data already before
>>the segfault comes and be happy.  :)  If users find it an
>>inconvenience, we can just tell them to upgrade their compiler, and
>>make some excuses about how it's a specific version of GCC and the
>>bug is in the compiler itself, or in wxGTK, there's some
>>disagreement over it, and nothing we can do except to recommend a
>>different compiler.
>>
>>But like I said (I think it was here), since I never lost any data
>>from Audacity doing this, I'm not particularly worried about it
>>there, so we just make sure we've saved everything before the core
>>dump.  ;)
>>
>>Dave
>>
>>    
>>
>>>Matt
>>>
>>>
>>>
>>>
>>>
>>>-------------------------------------------------------
>>>This SF.Net email is sponsored by: IBM Linux Tutorials
>>>Free Linux tutorial presented by Daniel Robbins, President and
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>>>lick _______________________________________________
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>>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>>>      
>>>
>
>
>
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Re: [jazzplusplus-devel] Core dump update

[Dave F. <dav...@co...>]

On Wednesday 31 March 2004 05:46 am, Matt Kelly wrote:
> > But like I said (I think it was here), since I never lost any data from
> > Audacity doing this, I'm not particularly worried about it there, so we
> > just make sure we've saved everything before the core dump.  ;)
>
> You are correct... I too have never lost anything to the core dumps.
> It's mostly cosmetic.

Hmm, I set out to prove that this bug in Audacity had the same cause earlier 
tonight, and latest Audacity cvs doesn't segfault on exit any more.  The plot 
thickens....  ;)

Dave

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Re: [jazzplusplus-devel] Core dump update

[Patrick E. <pa...@pa...>]

Ya, that sounds like a great candidate for a FAQ entry.  Just need to 
make sure that any binaries we create are compiled with a sane 
compiler.

3.3.3 suffers from the segfault as well.  I haven't tried it on 3.4 
since I'm waiting for Debian to move it from experimental to 
unstable.

        Patrick

On Tuesday 30 March 2004 10:57, Dave Fancella wrote:
> On Wednesday 31 March 2004 04:20 am, Matt Kelly wrote:
> > This kinda sucks, because it will place compiler requirements on
> > JAZZ (and Audacity, and......).  I hate it when an app requires a
> > certain compiler version to compile.  Ack.  Pthphfffft.  It tends
> > to make people more hesitant to try an app.
>
> To be honest, I'll bet we can safely ignore it and it'll go away. 
> ;)  I'm thinking that if a later version of GCC is known to work
> fine with wxGTK, the distributions will be picking it up, of
> course.  We just make sure that we've saved all data already before
> the segfault comes and be happy.  :)  If users find it an
> inconvenience, we can just tell them to upgrade their compiler, and
> make some excuses about how it's a specific version of GCC and the
> bug is in the compiler itself, or in wxGTK, there's some
> disagreement over it, and nothing we can do except to recommend a
> different compiler.
>
> But like I said (I think it was here), since I never lost any data
> from Audacity doing this, I'm not particularly worried about it
> there, so we just make sure we've saved everything before the core
> dump.  ;)
>
> Dave
>
> > Matt
> >
> >
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IBM Linux Tutorials
> > Free Linux tutorial presented by Daniel Robbins, President and
> > CEO of GenToo technologies. Learn everything from fundamentals to
> > system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=c
> >lick _______________________________________________
> > jazzplusplus-devel mailing list
> > jaz...@li...
> > https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel

Re: [jazzplusplus-devel] Core dump update

[Matt K. <ra...@ch...>]

Dave Fancella wrote:
> On Wednesday 31 March 2004 04:20 am, Matt Kelly wrote:
> 
>>This kinda sucks, because it will place compiler requirements on
>>JAZZ (and Audacity, and......).  I hate it when an app requires a
>>certain compiler version to compile.  Ack.  Pthphfffft.  It tends
>>to make people more hesitant to try an app.
> 
> 
> To be honest, I'll bet we can safely ignore it and it'll go away.  ;)  I'm 
> thinking that if a later version of GCC is known to work fine with wxGTK, the 
> distributions will be picking it up, of course.  We just make sure that we've 
> saved all data already before the segfault comes and be happy.  :)  If users 
> find it an inconvenience, we can just tell them to upgrade their compiler, 
> and make some excuses about how it's a specific version of GCC and the bug is 
> in the compiler itself, or in wxGTK, there's some disagreement over it, and 
> nothing we can do except to recommend a different compiler.

I suppose.  Still bugs me though.  :)

> 
> But like I said (I think it was here), since I never lost any data from 
> Audacity doing this, I'm not particularly worried about it there, so we just 
> make sure we've saved everything before the core dump.  ;)

You are correct... I too have never lost anything to the core dumps.
It's mostly cosmetic.

Matt

Re: [jazzplusplus-devel] Core dump update

[Dave F. <dav...@co...>]

On Wednesday 31 March 2004 04:20 am, Matt Kelly wrote:
> This kinda sucks, because it will place compiler requirements on
> JAZZ (and Audacity, and......).  I hate it when an app requires a
> certain compiler version to compile.  Ack.  Pthphfffft.  It tends
> to make people more hesitant to try an app.

To be honest, I'll bet we can safely ignore it and it'll go away.  ;)  I'm 
thinking that if a later version of GCC is known to work fine with wxGTK, the 
distributions will be picking it up, of course.  We just make sure that we've 
saved all data already before the segfault comes and be happy.  :)  If users 
find it an inconvenience, we can just tell them to upgrade their compiler, 
and make some excuses about how it's a specific version of GCC and the bug is 
in the compiler itself, or in wxGTK, there's some disagreement over it, and 
nothing we can do except to recommend a different compiler.

But like I said (I think it was here), since I never lost any data from 
Audacity doing this, I'm not particularly worried about it there, so we just 
make sure we've saved everything before the core dump.  ;)

Dave

> Matt
>
>
>
>
>
> -------------------------------------------------------
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> Free Linux tutorial presented by Daniel Robbins, President and CEO of
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Re: [jazzplusplus-devel] Core dumpage

[Matt K. <ra...@ch...>]

Dave Fancella wrote:
> On Tuesday 30 March 2004 08:49 pm, Matt Kelly wrote:
> 
>>Dave -- if you wouldn't mind, could you post this to Audacity-devel?  I'm
>>not a member of that group.  The responder on the wxWidget team didn't
>>seem too thrilled about making this fix -- he said to change compilers.
>>Maybe having more "pressure" to apply this "fix" will change their minds.
> 
> 
> Done.  :)  Odd that they'd go to all this effort to support so many compilers 
> and then tell you to switch compilers...

Odd indeed.  :)

> 
> Just out of curiosity, Matt, what distribution are you using?  I noticed 
> sometime ago that I wasn't the only Mandrake drone around here, and 
> previously I had attributed this bug in Audacity to be more or less caused by 
> something Mandrake did, and figured it would go away if I ignored it.  (And 
> since it didn't result in the loss of any data, it was only a minor 
> inconvenience)

I'm using SuSE 8.2 Pro.  My compiler:


warp>> gcc --version
gcc (GCC) 3.3 20030226 (prerelease) (SuSE Linux)

I think this is a very early 3.3.0, according to the changelog.

I'm thinking of upgrading to 3.3.3 or maybe to 3.4 and see what
happens.  With SuSE, it's pretty easy to uninstall, reinstall,
etc.

Matt

[jazzplusplus-devel] Core dump update

[Matt K. <ra...@ch...>]

All, FYI,

I just checked the wxGTK core dump bug status on sourceforge.
The developer said that my patch wouldn't work in all cases,
and that other people are seeing similar core dumps in other
placesin wxGTK, caused by the same compiler bug.  He said that
GCC 3.3 is just no good and that it must be updated in order to make
wxGTK work correctly.  I think my patch would probably fix JAZZ
and probably Audacity, most likely, though.

I still think this is somewhat of a cop-out on their part.  They
could re-write the global stuff to be immune to initialization order
problems.  There's not that much of it from what I can see.  But, I
don't think I alone can make them budge.

This kinda sucks, because it will place compiler requirements on
JAZZ (and Audacity, and......).  I hate it when an app requires a
certain compiler version to compile.  Ack.  Pthphfffft.  It tends
to make people more hesitant to try an app.

Matt

[jazzplusplus-devel] CVS checkins

[Matt K. <ra...@ch...>]

All,

I've checked in my memory bug fixes and the PortMidi Makefile fix.
No changes to functionality, just memory friendliness.

Matt

Re: [jazzplusplus-devel] Core dumpage

[Dave F. <dav...@co...>]

On Tuesday 30 March 2004 08:49 pm, Matt Kelly wrote:
> Dave -- if you wouldn't mind, could you post this to Audacity-devel?  I'm
> not a member of that group.  The responder on the wxWidget team didn't
> seem too thrilled about making this fix -- he said to change compilers.
> Maybe having more "pressure" to apply this "fix" will change their minds.

Done.  :)  Odd that they'd go to all this effort to support so many compilers 
and then tell you to switch compilers...

Just out of curiosity, Matt, what distribution are you using?  I noticed 
sometime ago that I wasn't the only Mandrake drone around here, and 
previously I had attributed this bug in Audacity to be more or less caused by 
something Mandrake did, and figured it would go away if I ignored it.  (And 
since it didn't result in the loss of any data, it was only a minor 
inconvenience)

Dave

> Matt
>
> > Matt,
> >
> > I forwarded this email to Audacity-devel because it's affecting them,
> > too. Would you be able to point to a file, line, or possible a viewcvs
> > link to the broken code?  Or just tell me where to look and I'll dig it
> > up.  :)
> >
> > I don't think cross-posting will work here, unless you guys are all
> > members of the audacity-devel list (which would make cross-pointing
> > almost pointless anyway), because I think it's a subscriber-only list
> > now.
> >
> > Thanks,
> >
> > Dave
> >
> > On Monday 29 March 2004 07:47 pm, Matt Kelly wrote:
> > > OK, I've found the problem.  It's a wxGTK bug, in the wxString
> > > class.
> > >
> > > The default constructor initializes a pointer data member (the member
> > > that holds the actual storage) to NULL.  The destructor blindly
> > > dereferences this pointer.  If the string never gets set to anything,
> > > it dereferences a NULL pointer minus an index, making for a truly
> > > horrible pointer value.
>
> -------------------------------------------------------
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[jazzplusplus-devel] added sequence lenght dialog to cvs

[joakim v. <jo...@ve...>]

Hello,

I've added the "sequence length" command the same way I added the "midi 
delay" dialog.
Again, I choose this esoteric command rather than something useful 
because I originally
coded the command and remembered how it worked.

Some notes:

- xrced limits the ranges of a spin ctrl for instance. You can extend 
the range by editing the file in emacs.
- The xrc resource locator isnt very forgiving. If you forget to load 
the xrc, or the dialog resource has
the wrong name it will segfault.



Cheers,
/Joakim

Re: [jazzplusplus-devel] Core dumpage

[Matt K. <ra...@ch...>]

Dave,

The actual bug, as it turns out, is with the compiler!!!

I'm using gcc/g++ 3.3, which apparently has a problem with
global class object constructors.  What is happening is that
wxGTK has some global native data type variables that get initialized 
to a specific value; it also has global class objects, the most problematic
being wxString class objects.

The problem is that the compiler generates code that causes
the global class objects to get constructed before at least some
of the native data type global variables get initialized.  The
wxString class uses an initialized global variable in its 
constructor.  But sadly, the global var is not yet initialized,
and is NULL at the time the global wxString objects' constructors 
are called.  Since the global wxString objects never get set to anything
during JAZZ/Audacity operation, this NULL value within the global 
wxString objects causes the crash on exit/destruction.

The fixable code is in the wxString destructor, which is in 
<top source dir>/include/wx/string.h for versions 2.4.x and below, and in 
the wxStringBase destructor, same file, in 2.5.x.

This destructor is a one liner.  Here's the quick fix, shown for version
2.4.2.  The 2.5.x fix is the same, but is in the ever-so-slightly-different
wxStringBase destructor:

IS:

...
~wxString() { GetStringData()->Unlock(); }
...

CHANGE TO:

~wxString() { if (m_pchData) GetStringData()->Unlock(); }

Of course, the "more correct" fix is to change compilers.  Ack.

Dave -- if you wouldn't mind, could you post this to Audacity-devel?  I'm
not a member of that group.  The responder on the wxWidget team didn't
seem too thrilled about making this fix -- he said to change compilers.  
Maybe having more "pressure" to apply this "fix" will change their minds.

Matt


> 
> Matt,
> 
> I forwarded this email to Audacity-devel because it's affecting them, too.  
> Would you be able to point to a file, line, or possible a viewcvs link to the 
> broken code?  Or just tell me where to look and I'll dig it up.  :)
> 
> I don't think cross-posting will work here, unless you guys are all members of 
> the audacity-devel list (which would make cross-pointing almost pointless 
> anyway), because I think it's a subscriber-only list now.
> 
> Thanks,
> 
> Dave
> 
> On Monday 29 March 2004 07:47 pm, Matt Kelly wrote:
> > OK, I've found the problem.  It's a wxGTK bug, in the wxString
> > class.
> >
> > The default constructor initializes a pointer data member (the member that
> > holds the actual storage) to NULL.  The destructor blindly
> > dereferences this pointer.  If the string never gets set to anything,
> > it dereferences a NULL pointer minus an index, making for a truly
> > horrible pointer value.
> >

Re: [jazzplusplus-devel] portmidi broken?

[Matt K. <ra...@ch...>]

Yup, I saw this too.  I have a fix for the Makefile, 
but haven't checked it in.  Will do so as soon as I can.

Matt


> 
> Hello,
> 
> I tried to compile portmidi and it didnt on my system.
> 
> I just wanted to verify if this was the case for you too.
> 
> (Maybe i'll do another dialog instead)
> 
> Cheers,
> /Joakim
> 
> 
> -------------------------------------------------------
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> 

[jazzplusplus-devel] portmidi broken?

[joakim v. <jo...@ve...>]

Hello,

I tried to compile portmidi and it didnt on my system.

I just wanted to verify if this was the case for you too.

(Maybe i'll do another dialog instead)

Cheers,
/Joakim

Re: [jazzplusplus-devel] Core dumpage

[Dave F. <dav...@co...>]

Matt,

I forwarded this email to Audacity-devel because it's affecting them, too.  
Would you be able to point to a file, line, or possible a viewcvs link to the 
broken code?  Or just tell me where to look and I'll dig it up.  :)

I don't think cross-posting will work here, unless you guys are all members of 
the audacity-devel list (which would make cross-pointing almost pointless 
anyway), because I think it's a subscriber-only list now.

Thanks,

Dave

On Monday 29 March 2004 07:47 pm, Matt Kelly wrote:
> OK, I've found the problem.  It's a wxGTK bug, in the wxString
> class.
>
> The default constructor initializes a pointer data member (the member that
> holds the actual storage) to NULL.  The destructor blindly
> dereferences this pointer.  If the string never gets set to anything,
> it dereferences a NULL pointer minus an index, making for a truly
> horrible pointer value.
>
> Unfortunately, the wxGTK library has a few global wxString variables
> which normally don't get used.  Thus, they contain these NULL pointers
> and seg fault on exit when their destructors get called globally.
>
> There is a very simple fix, but sadly, the bug is within wxGTK.
> If anyone is interested, I'll post the fix.  I'll also contact
> the wxWindows team and notify them.
>
> Matt
>
> > As Patrick wrote, It's been there as long as I can remember.
> >
> > It has always annoyed me so it would be great if you could eliminate it.
> >
> > Cheers,
> > /Joakim
> >
> > Matt Kelly wrote:
> > > All,
> > >
> > > I've been looking into why JAZZ dumps core when you exit.
> > > I think I may be onto something.  It appears to be dumping
> > > core during the destruction of a global wxString located
> > > within the wxGTK library itself.  Not sure if it's a wxGTK
> > > bug, a wxWindows bug, or if it's something we're causing,
> > > but it smells like it might be a wxGTK bug.
> > >
> > > My question to the group: how many of you see this behavior?
> > > I'm asking because I see the same behavior with Audacity.
> > > My copy of Audacity came bundled with my SuSE installation.
> > > This seems to reinforce my beliefs.
> > >
> > > Also, interestingly, I grabbed the latest wxGTK source, and
> > > compiled it in debug mode, and installed it.  I made Jazz
> > > use it for its compiling.  Guess what, same thing on exit!!!
> > >
> > > I just want to see if other distros see this same behavior.
> > >
> > > Thanks,
> > >
> > > Matt
>
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Blow it out your ear.

Re: [jazzplusplus-devel] broken wiki url

[Joakim V. <jo...@ve...>]

Ok, I figured it out, our evil company firewall stops http on other 
ports than 80

/Joakim

Patrick Earl wrote:

>I tried the wiki link from an external box... no problems.  Maybe 
>there was a temporary disruption in service.  me.patearl.net just has 
>a cable modem connection.
>
>        Patrick
>
>On Tuesday 30 March 2004 01:02, Joakim Verona wrote:
>  
>
>>http://me.patearl.net:8000/~patearl/jazz/
>><http://me.patearl.net:8000/%7Epatearl/jazz/>
>>
>>
>>
>>-------------------------------------------------------
>>This SF.Net email is sponsored by: IBM Linux Tutorials
>>Free Linux tutorial presented by Daniel Robbins, President and CEO
>>of GenToo technologies. Learn everything from fundamentals to
>>system
>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=cli
>>ck _______________________________________________
>>jazzplusplus-devel mailing list
>>jaz...@li...
>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>>    
>>
>
>
>
>-------------------------------------------------------
>This SF.Net email is sponsored by: IBM Linux Tutorials
>Free Linux tutorial presented by Daniel Robbins, President and CEO of
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>_______________________________________________
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>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>  
>

Re: [jazzplusplus-devel] broken wiki url

[Patrick E. <pa...@pa...>]

I tried the wiki link from an external box... no problems.  Maybe 
there was a temporary disruption in service.  me.patearl.net just has 
a cable modem connection.

        Patrick

On Tuesday 30 March 2004 01:02, Joakim Verona wrote:
> http://me.patearl.net:8000/~patearl/jazz/
> <http://me.patearl.net:8000/%7Epatearl/jazz/>
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO
> of GenToo technologies. Learn everything from fundamentals to
> system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=cli
>ck _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel

[jazzplusplus-devel] broken wiki url

[Joakim V. <jo...@ve...>]

http://me.patearl.net:8000/~patearl/jazz/ 
<http://me.patearl.net:8000/%7Epatearl/jazz/>

Re: [jazzplusplus-devel] Got a XML resource dialog to load!

[Patrick E. <pa...@pa...>]

Actually, I always thought that some of the uses of sliders were a 
little wierd.  Might want to replace some of them with spin controls, 
editable or not.

        Patrick

On Monday 29 March 2004 15:25, joakim verona wrote:
> I made a new commit that actually connects the values to the
> command class, and also does the percent scaling seemingly
> sucessfully.
>
> Yes, it was originally possible to do fun stuff like making a
> "reverse echo" by using negative clocks, and an "inverse echo"
> by having a scaling factor greater than 1.
>
> Im thinking now of having 2 tabs, one for "sane" echos,
> and one for "insane" echos.
>
> With that solution it will be more immediately clear how the
> delay works, without leaving out any possibilities.
>
> Maybe it can work like it does in "spiralsynth". There are some
> modules there
> that have a "sliders" tab and a "numbers" tab, where you can enter
> numbers directly.
>
> Cheers,
> /Joakim
>
> Patrick Earl wrote:
> >Also, I like the title at the top, but maybe we should add little
> >labels below the titles that say what the dialog is supposed to
> > do. Though I have a guess as to what the midi delay dialog is
> > used for, it's not fully clear.
> >
> >       Patrick
> >
> >On Monday 29 March 2004 15:12, Patrick Earl wrote:
> >>I have to leave in a minute, but I had a couple quick comments.
> >>
> >>1.  Remember what I said about that whole Attach(...,..,scale)
> >>thing? Maybe it would be better to just perform the scaling
> >> after, when the dialog is accepted.  For example, in your code
> >> you could use "scale / = 100.0" in the if block.
> >>
> >>2.  Wasn't the velocity scale allowed to increase before, or was
> >> I imagining things?  Anyways, could always have 400% to
> >> represent an increase in scale.
> >>
> >>3.  The sliders don't slide all the way to the right.  I'm not
> >> sure what's up with that, but it's a problem I've seen before. 
> >> I don't recall if it was only in Jazz or in other programs too.
> >>
> >>        Patrick
> >>
> >>On Monday 29 March 2004 13:53, joakim verona wrote:
> >>>Ok, I've checked it in now.
> >>>
> >>>
> >>>
> >>>/Joakim
> >>>
> >>>Patrick Earl wrote:
> >>>>Check it in.. I want to see too. :)
> >>>>
> >>>>      Patrick
> >>>>
> >>>>On Sunday 28 March 2004 16:31, joakim verona wrote:
> >>>>>Hello,
> >>>>>
> >>>>>I've managed to draw a xml dialog in xrced and got it to load
> >>>>>within jazz too!
> >>>>>(ok so it's only one line of code because of Patricks nice
> >>>>>wrapper, but anyhow...)
> >>>>>
> >>>>>Its still the "midi delay" dialog.
> >>>>>
> >>>>>To get the dialog to actually work, I need to know some
> >>>>> things: - Where to get the current track these  days
> >>>>>- The filter
> >>>>>- The selection
> >>>>>- Where should the dialog caller function go?
> >>>>>It used to live in tTrackWin, but I cant remember why, so I
> >>>>>stuck it in tPianowin.
> >>>>>
> >>>>>
> >>>>>Cheers,
> >>>>>/Joakim
> >>>>>
> >>>>>
> >>>>>-------------------------------------------------------
> >>>>>This SF.Net email is sponsored by: IBM Linux Tutorials
> >>>>>Free Linux tutorial presented by Daniel Robbins, President and
> >>>>>CEO of GenToo technologies. Learn everything from fundamentals
> >>>>>to system
> >>>>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&o
> >>>>>p =c li ck _______________________________________________
> >>>>> jazzplusplus-devel mailing list
> >>>>>jaz...@li...
> >>>>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-deve
> >>>>>l
> >>>>
> >>>>-------------------------------------------------------
> >>>>This SF.Net email is sponsored by: IBM Linux Tutorials
> >>>>Free Linux tutorial presented by Daniel Robbins, President and
> >>>>CEO of GenToo technologies. Learn everything from fundamentals
> >>>>to system
> >>>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op
> >>>>=c lick _______________________________________________
> >>>>jazzplusplus-devel mailing list
> >>>>jaz...@li...
> >>>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
> >>>
> >>>-------------------------------------------------------
> >>>This SF.Net email is sponsored by: IBM Linux Tutorials
> >>>Free Linux tutorial presented by Daniel Robbins, President and
> >>>CEO of GenToo technologies. Learn everything from fundamentals
> >>> to system
> >>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=
> >>>c li ck _______________________________________________
> >>>jazzplusplus-devel mailing list
> >>>jaz...@li...
> >>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
> >>
> >>-------------------------------------------------------
> >>This SF.Net email is sponsored by: IBM Linux Tutorials
> >>Free Linux tutorial presented by Daniel Robbins, President and
> >> CEO of GenToo technologies. Learn everything from fundamentals
> >> to system
> >>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=c
> >>li ck _______________________________________________
> >>jazzplusplus-devel mailing list
> >>jaz...@li...
> >>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
> >
> >-------------------------------------------------------
> >This SF.Net email is sponsored by: IBM Linux Tutorials
> >Free Linux tutorial presented by Daniel Robbins, President and CEO
> > of GenToo technologies. Learn everything from fundamentals to
> > system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=c
> >lick _______________________________________________
> >jazzplusplus-devel mailing list
> >jaz...@li...
> >https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
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Re: [jazzplusplus-devel] Got a XML resource dialog to load!

[joakim v. <jo...@ve...>]

I made a new commit that actually connects the values to the command class,
and also does the percent scaling seemingly sucessfully.

Yes, it was originally possible to do fun stuff like making a
"reverse echo" by using negative clocks, and an "inverse echo"
by having a scaling factor greater than 1.

Im thinking now of having 2 tabs, one for "sane" echos,
and one for "insane" echos.

With that solution it will be more immediately clear how the
delay works, without leaving out any possibilities.

Maybe it can work like it does in "spiralsynth". There are some modules 
there
that have a "sliders" tab and a "numbers" tab, where you can enter 
numbers directly.

Cheers,
/Joakim


Patrick Earl wrote:

>Also, I like the title at the top, but maybe we should add little 
>labels below the titles that say what the dialog is supposed to do.  
>Though I have a guess as to what the midi delay dialog is used for, 
>it's not fully clear.
>
>       Patrick
>
>On Monday 29 March 2004 15:12, Patrick Earl wrote:
>  
>
>>I have to leave in a minute, but I had a couple quick comments.
>>
>>1.  Remember what I said about that whole Attach(...,..,scale)
>>thing? Maybe it would be better to just perform the scaling after,
>>when the dialog is accepted.  For example, in your code you could
>>use "scale / = 100.0" in the if block.
>>
>>2.  Wasn't the velocity scale allowed to increase before, or was I
>>imagining things?  Anyways, could always have 400% to represent an
>>increase in scale.
>>
>>3.  The sliders don't slide all the way to the right.  I'm not sure
>>what's up with that, but it's a problem I've seen before.  I don't
>>recall if it was only in Jazz or in other programs too.
>>
>>        Patrick
>>
>>On Monday 29 March 2004 13:53, joakim verona wrote:
>>    
>>
>>>Ok, I've checked it in now.
>>>
>>>
>>>
>>>/Joakim
>>>
>>>Patrick Earl wrote:
>>>      
>>>
>>>>Check it in.. I want to see too. :)
>>>>
>>>>      Patrick
>>>>
>>>>On Sunday 28 March 2004 16:31, joakim verona wrote:
>>>>        
>>>>
>>>>>Hello,
>>>>>
>>>>>I've managed to draw a xml dialog in xrced and got it to load
>>>>>within jazz too!
>>>>>(ok so it's only one line of code because of Patricks nice
>>>>>wrapper, but anyhow...)
>>>>>
>>>>>Its still the "midi delay" dialog.
>>>>>
>>>>>To get the dialog to actually work, I need to know some things:
>>>>>- Where to get the current track these  days
>>>>>- The filter
>>>>>- The selection
>>>>>- Where should the dialog caller function go?
>>>>>It used to live in tTrackWin, but I cant remember why, so I
>>>>>stuck it in tPianowin.
>>>>>
>>>>>
>>>>>Cheers,
>>>>>/Joakim
>>>>>
>>>>>
>>>>>-------------------------------------------------------
>>>>>This SF.Net email is sponsored by: IBM Linux Tutorials
>>>>>Free Linux tutorial presented by Daniel Robbins, President and
>>>>>CEO of GenToo technologies. Learn everything from fundamentals
>>>>>to system
>>>>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op
>>>>>=c li ck _______________________________________________
>>>>>jazzplusplus-devel mailing list
>>>>>jaz...@li...
>>>>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>>>>>          
>>>>>
>>>>-------------------------------------------------------
>>>>This SF.Net email is sponsored by: IBM Linux Tutorials
>>>>Free Linux tutorial presented by Daniel Robbins, President and
>>>>CEO of GenToo technologies. Learn everything from fundamentals
>>>>to system
>>>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op
>>>>=c lick _______________________________________________
>>>>jazzplusplus-devel mailing list
>>>>jaz...@li...
>>>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>>>>        
>>>>
>>>-------------------------------------------------------
>>>This SF.Net email is sponsored by: IBM Linux Tutorials
>>>Free Linux tutorial presented by Daniel Robbins, President and
>>>CEO of GenToo technologies. Learn everything from fundamentals to
>>>system
>>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=c
>>>li ck _______________________________________________
>>>jazzplusplus-devel mailing list
>>>jaz...@li...
>>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>>>      
>>>
>>-------------------------------------------------------
>>This SF.Net email is sponsored by: IBM Linux Tutorials
>>Free Linux tutorial presented by Daniel Robbins, President and CEO
>>of GenToo technologies. Learn everything from fundamentals to
>>system
>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=cli
>>ck _______________________________________________
>>jazzplusplus-devel mailing list
>>jaz...@li...
>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>>    
>>
>
>
>
>-------------------------------------------------------
>This SF.Net email is sponsored by: IBM Linux Tutorials
>Free Linux tutorial presented by Daniel Robbins, President and CEO of
>GenToo technologies. Learn everything from fundamentals to system
>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
>_______________________________________________
>jazzplusplus-devel mailing list
>jaz...@li...
>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>  
>

Re: [jazzplusplus-devel] Core dumpage

[Matt K. <ra...@ch...>]

> 
> Can we work around it by setting the global variables to something?  A 
> well commented line could be left in jazz.cpp for when the problem 
> goes away.
> 
>         Patrick
> 

I thought about that, but I'd worry about what version of wxGTK any given
user is using.  There is no guarantee that their version will have the same
set of global wxString variables.  If the user were compiling JAZZ, that's one
thing (although if it didn't work, they would have a hard time figuring out
the mismatch), but if the user installs JAZZ from RPM's, there's no way to
fix a mismatch.

A possibly safer approach would be to instantiate an instance of each wxGTK
class that uses global wxStrings.  This might be a little safer, but still
no guarantees against mismatches.

Not sure how to crack this nut.  We may either have to do something like this,
or just tell the users that it's gonna segfault on exit and explain that it's 
not our fault.

Matt

Re: [jazzplusplus-devel] Got a XML resource dialog to load!

[Patrick E. <pa...@pa...>]

Also, I like the title at the top, but maybe we should add little 
labels below the titles that say what the dialog is supposed to do.  
Though I have a guess as to what the midi delay dialog is used for, 
it's not fully clear.

       Patrick

On Monday 29 March 2004 15:12, Patrick Earl wrote:
> I have to leave in a minute, but I had a couple quick comments.
>
> 1.  Remember what I said about that whole Attach(...,..,scale)
> thing? Maybe it would be better to just perform the scaling after,
> when the dialog is accepted.  For example, in your code you could
> use "scale / = 100.0" in the if block.
>
> 2.  Wasn't the velocity scale allowed to increase before, or was I
> imagining things?  Anyways, could always have 400% to represent an
> increase in scale.
>
> 3.  The sliders don't slide all the way to the right.  I'm not sure
> what's up with that, but it's a problem I've seen before.  I don't
> recall if it was only in Jazz or in other programs too.
>
>         Patrick
>
> On Monday 29 March 2004 13:53, joakim verona wrote:
> > Ok, I've checked it in now.
> >
> >
> >
> > /Joakim
> >
> > Patrick Earl wrote:
> > >Check it in.. I want to see too. :)
> > >
> > >       Patrick
> > >
> > >On Sunday 28 March 2004 16:31, joakim verona wrote:
> > >>Hello,
> > >>
> > >>I've managed to draw a xml dialog in xrced and got it to load
> > >>within jazz too!
> > >>(ok so it's only one line of code because of Patricks nice
> > >> wrapper, but anyhow...)
> > >>
> > >>Its still the "midi delay" dialog.
> > >>
> > >>To get the dialog to actually work, I need to know some things:
> > >>- Where to get the current track these  days
> > >>- The filter
> > >>- The selection
> > >>- Where should the dialog caller function go?
> > >>It used to live in tTrackWin, but I cant remember why, so I
> > >> stuck it in tPianowin.
> > >>
> > >>
> > >>Cheers,
> > >>/Joakim
> > >>
> > >>
> > >>-------------------------------------------------------
> > >>This SF.Net email is sponsored by: IBM Linux Tutorials
> > >>Free Linux tutorial presented by Daniel Robbins, President and
> > >> CEO of GenToo technologies. Learn everything from fundamentals
> > >> to system
> > >>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op
> > >>=c li ck _______________________________________________
> > >>jazzplusplus-devel mailing list
> > >>jaz...@li...
> > >>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
> > >
> > >-------------------------------------------------------
> > >This SF.Net email is sponsored by: IBM Linux Tutorials
> > >Free Linux tutorial presented by Daniel Robbins, President and
> > > CEO of GenToo technologies. Learn everything from fundamentals
> > > to system
> > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op
> > >=c lick _______________________________________________
> > >jazzplusplus-devel mailing list
> > >jaz...@li...
> > >https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IBM Linux Tutorials
> > Free Linux tutorial presented by Daniel Robbins, President and
> > CEO of GenToo technologies. Learn everything from fundamentals to
> > system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=c
> >li ck _______________________________________________
> > jazzplusplus-devel mailing list
> > jaz...@li...
> > https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO
> of GenToo technologies. Learn everything from fundamentals to
> system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=cli
>ck _______________________________________________
> jazzplusplus-devel mailing list
> jaz...@li...
> https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel

Re: [jazzplusplus-devel] Got a XML resource dialog to load!

[Patrick E. <pa...@pa...>]

I have to leave in a minute, but I had a couple quick comments.

1.  Remember what I said about that whole Attach(...,..,scale) thing?  
Maybe it would be better to just perform the scaling after, when the 
dialog is accepted.  For example, in your code you could use "scale /
= 100.0" in the if block.

2.  Wasn't the velocity scale allowed to increase before, or was I 
imagining things?  Anyways, could always have 400% to represent an 
increase in scale.

3.  The sliders don't slide all the way to the right.  I'm not sure 
what's up with that, but it's a problem I've seen before.  I don't 
recall if it was only in Jazz or in other programs too.

        Patrick

On Monday 29 March 2004 13:53, joakim verona wrote:
> Ok, I've checked it in now.
>
>
>
> /Joakim
>
> Patrick Earl wrote:
> >Check it in.. I want to see too. :)
> >
> >       Patrick
> >
> >On Sunday 28 March 2004 16:31, joakim verona wrote:
> >>Hello,
> >>
> >>I've managed to draw a xml dialog in xrced and got it to load
> >>within jazz too!
> >>(ok so it's only one line of code because of Patricks nice
> >> wrapper, but anyhow...)
> >>
> >>Its still the "midi delay" dialog.
> >>
> >>To get the dialog to actually work, I need to know some things:
> >>- Where to get the current track these  days
> >>- The filter
> >>- The selection
> >>- Where should the dialog caller function go?
> >>It used to live in tTrackWin, but I cant remember why, so I stuck
> >>it in tPianowin.
> >>
> >>
> >>Cheers,
> >>/Joakim
> >>
> >>
> >>-------------------------------------------------------
> >>This SF.Net email is sponsored by: IBM Linux Tutorials
> >>Free Linux tutorial presented by Daniel Robbins, President and
> >> CEO of GenToo technologies. Learn everything from fundamentals
> >> to system
> >>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=c
> >>li ck _______________________________________________
> >>jazzplusplus-devel mailing list
> >>jaz...@li...
> >>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
> >
> >-------------------------------------------------------
> >This SF.Net email is sponsored by: IBM Linux Tutorials
> >Free Linux tutorial presented by Daniel Robbins, President and CEO
> > of GenToo technologies. Learn everything from fundamentals to
> > system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=c
> >lick _______________________________________________
> >jazzplusplus-devel mailing list
> >jaz...@li...
> >https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
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> system
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Re: [jazzplusplus-devel] Core dumpage

[Patrick E. <pa...@pa...>]

Can we work around it by setting the global variables to something?  A 
well commented line could be left in jazz.cpp for when the problem 
goes away.

        Patrick

On Monday 29 March 2004 14:00, Matt Kelly wrote:
> > Hope your fix makes it into the core wxGTK distribution.
> >
> > Have you checked if the bug is still in the wxGTK 2.5 beta?
>
> Nope, but I will check.  I checked wxWindows' bug list for wxString
> bugs, but did not see this one, so I'm not too hopeful.
>
> Matt
>
> > Cheers,
> > /Joakim
> >
> > Matt Kelly wrote:
> > >OK, I've found the problem.  It's a wxGTK bug, in the wxString
> > >class.
> > >
> > >The default constructor initializes a pointer data member (the
> > > member that holds the actual storage) to NULL.  The destructor
> > > blindly dereferences this pointer.  If the string never gets
> > > set to anything, it dereferences a NULL pointer minus an index,
> > > making for a truly horrible pointer value.
> > >
> > >Unfortunately, the wxGTK library has a few global wxString
> > > variables which normally don't get used.  Thus, they contain
> > > these NULL pointers and seg fault on exit when their
> > > destructors get called globally.
> > >
> > >There is a very simple fix, but sadly, the bug is within wxGTK.
> > >If anyone is interested, I'll post the fix.  I'll also contact
> > >the wxWindows team and notify them.
> > >
> > >Matt
> > >
> > >>As Patrick wrote, It's been there as long as I can remember.
> > >>
> > >>It has always annoyed me so it would be great if you could
> > >> eliminate it.
> > >>
> > >>Cheers,
> > >>/Joakim
> > >>
> > >>Matt Kelly wrote:
> > >>>All,
> > >>>
> > >>>I've been looking into why JAZZ dumps core when you exit.
> > >>>I think I may be onto something.  It appears to be dumping
> > >>>core during the destruction of a global wxString located
> > >>>within the wxGTK library itself.  Not sure if it's a wxGTK
> > >>>bug, a wxWindows bug, or if it's something we're causing,
> > >>>but it smells like it might be a wxGTK bug.
> > >>>
> > >>>My question to the group: how many of you see this behavior?
> > >>>I'm asking because I see the same behavior with Audacity.
> > >>>My copy of Audacity came bundled with my SuSE installation.
> > >>>This seems to reinforce my beliefs.
> > >>>
> > >>>Also, interestingly, I grabbed the latest wxGTK source, and
> > >>>compiled it in debug mode, and installed it.  I made Jazz
> > >>>use it for its compiling.  Guess what, same thing on exit!!!
> > >>>
> > >>>I just want to see if other distros see this same behavior.
> > >>>
> > >>>Thanks,
> > >>>
> > >>>Matt
> > >
> > >-------------------------------------------------------
> > >This SF.Net email is sponsored by: IBM Linux Tutorials
> > >Free Linux tutorial presented by Daniel Robbins, President and
> > > CEO of GenToo technologies. Learn everything from fundamentals
> > > to system
> > > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op
> > >=click _______________________________________________
> > >jazzplusplus-devel mailing list
> > >jaz...@li...
> > >https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IBM Linux Tutorials
> > Free Linux tutorial presented by Daniel Robbins, President and
> > CEO of GenToo technologies. Learn everything from fundamentals to
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> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=c
> >lick _______________________________________________
> > jazzplusplus-devel mailing list
> > jaz...@li...
> > https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
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>ck _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel

Re: [jazzplusplus-devel] Core dumpage

[Matt K. <ra...@ch...>]

> 
> > 
> > Hope your fix makes it into the core wxGTK distribution.
> > 
> > Have you checked if the bug is still in the wxGTK 2.5 beta?
> 
> Nope, but I will check.  I checked wxWindows' bug list for wxString
> bugs, but did not see this one, so I'm not too hopeful.

Well, I checked.  The bug is still there in 2.5 beta.  I did submit
a bug and patch, so hopefully it will be fixed soon.

Matt

Re: [jazzplusplus-devel] Got a XML resource dialog to load!

[joakim v. <jo...@ve...>]

Ok, I've checked it in now.



/Joakim

Patrick Earl wrote:

>Check it in.. I want to see too. :)
>
>       Patrick
>
>On Sunday 28 March 2004 16:31, joakim verona wrote:
>  
>
>>Hello,
>>
>>I've managed to draw a xml dialog in xrced and got it to load
>>within jazz too!
>>(ok so it's only one line of code because of Patricks nice wrapper,
>>but anyhow...)
>>
>>Its still the "midi delay" dialog.
>>
>>To get the dialog to actually work, I need to know some things:
>>- Where to get the current track these  days
>>- The filter
>>- The selection
>>- Where should the dialog caller function go?
>>It used to live in tTrackWin, but I cant remember why, so I stuck
>>it in tPianowin.
>>
>>
>>Cheers,
>>/Joakim
>>
>>
>>-------------------------------------------------------
>>This SF.Net email is sponsored by: IBM Linux Tutorials
>>Free Linux tutorial presented by Daniel Robbins, President and CEO
>>of GenToo technologies. Learn everything from fundamentals to
>>system
>>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=cli
>>ck _______________________________________________
>>jazzplusplus-devel mailing list
>>jaz...@li...
>>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>>    
>>
>
>
>
>-------------------------------------------------------
>This SF.Net email is sponsored by: IBM Linux Tutorials
>Free Linux tutorial presented by Daniel Robbins, President and CEO of
>GenToo technologies. Learn everything from fundamentals to system
>administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
>_______________________________________________
>jazzplusplus-devel mailing list
>jaz...@li...
>https://lists.sourceforge.net/lists/listinfo/jazzplusplus-devel
>  
>