| Andres,
Thanks for this info. (Also, to the responses from Michael and Anthony.)
I've studied the TamTamMini excerpts, and am not sure I follow very well.
But...
Does this mean I can write the following lines in the main body of my
script:
def onKeyPress(self, widget, event):
pass
and then in the functions where I want individual ASCII keypresses to be
passed to sensekey (in an active csd), simply include the following:
self.connect('key-press-event'), self.w.onKeyPress)
where the "w" references the main loop?
I gather this does not require any channel passing to the csd, the input
going instead straight to sensekey? (I presume this because I don't see a
channel name anywhere.)
Any/all clarification much appreciated.
If it's at all feasible, I'd think that sensekey data passing could be most
gratefully handled through csndsugui. Or is this not so?
Art Hunkins
----- Original Message -----
From: "Andres Cabrera"
To: "Art Hunkins" ; "Developer discussions"
Sent: Wednesday, May 06, 2009 11:30 AM
Subject: Re: [Cs-dev] [Csnd] sensekey and Sugar (OLPC)
Hi Art,
The rainbow-daemon is the security system for Sugar/OLPC. It is very
restrictive, so things that usually work on other systems require
certain changes to work on Sugar. Since you are already using python,
I would recommend taking a look at how things are done in TamTam,
which also receives keyboard events and passes them to csound. They
grab the keyboard events in python (from the main Activity subclass):
http://git.sugarlabs.org/projects/tamtam-branch/repos/mainline/blobs/master/TamTamMini.activity/TamTamMini.py#line53
and then pass the to csound via the software bus:
http://git.sugarlabs.org/projects/tamtam-branch/repos/mainline/blobs/master/TamTamMini.activity/Mini/miniTamTamMain.py#line552
Cheers,
Andrés
On Tue, May 5, 2009 at 1:02 PM, Art Hunkins wrote:
> There is definately a problem with sensekey being run in Sugar. Apparently
> it has to do with X windows, as this is what the log file indicates.
>
> The attached test csd runs fine from the console on the OLPC, including
> printing out the ASCII characters as struck on the keyboard (which is the
> expected behavior).
>
> In Sugar, however, the run aborts immediately; the log file carries on
> about
> an X window system error. (The other attached file is the simplest
> possible
> Python GUI.)
>
> When kasc is initialized to 0, and this line substituted for sensekey
> (only
> the single line is changed, as indicated in the csd), the 10-second file
> runs fine - except, of course, there is no alternation of pitches when
> pressing ASCII keys. Obviously the problem involves sensekey and X
> windows.
>
> Can one of the developers investigate (Victor, Brian, Andres, or anyone
> else
> involved with OLPCsound), or indicate where I should turn?
>
> I've 4 csd's in my current OLPC Activity project; the two using MIDI
> controllers are working fine in Sugar, the two using ASCII keystrokes as a
> control mechanism (through sensekey) are hanging me up completely.
>
> The two attached files are intended to be inserted into Victor's Wave
> activity - in the Waves.activity directory. The attached waves.py replaces
> Victor's of the same name. As mentioned above, the sensekey.csd runs fine
> from the console and command line: csound sensekey.csd (from wherever
> sensekey.csd is located).
>
> I really hope this sensekey issue can be sorted, and made to work in
> Sugar.
> 50% of my project depends on it.
>
> As always, I much appreciate the help.
>
> Art Hunkins
>
> ----- Original Message ----- From: "Art Hunkins"
> To:
> Sent: Friday, May 01, 2009 9:57 PM
> Subject: Re: [Csnd] sensekey and Sugar (OLPC)
>
>
>> A followup:
>>
>> A similar sensekey/ASCII-based csd issues two slightly different error
>> messages (with the same run abort):
>>
>> rainbow-daemon: Fatal IO error 0 (Success) on X server :0.0
>> or
>> rainbow-daemon: Fatal IO error 11 (Resource temporarily unavailable) on X
>> server :0.0
>>
>> Sometimes the run returns to Sugar, sometimes not.
>>
>> The scripting seems to be right, and nearly identical for the two csd's.
>>
>> Art Hunkins
>>
>> ----- Original Message ----- From: "Art Hunkins"
>> To:
>> Sent: Friday, May 01, 2009 9:28 PM
>> Subject: [Csnd] sensekey and Sugar (OLPC)
>>
>>
>>> I have a csd that runs impeccably from the XO console, but fails in
>>> Sugar
>>> (a Python script is running as an XO project; I've been making
>>> progress).
>>> I'm fairly certain the problem is sensekey, or the way in which Sugar is
>>> (or
>>> isn't) dealing with ASCII keystrokes.
>>>
>>> The Sugar error occurs precisely at the first ASCII keystroke (prior to
>>> that, the run is fine). With the keystroke, the run aborts and exits to
>>> Sugar.
>>>
>>> The log shows the error message to be:
>>> rainbow-daemon: Fatal IO error 12 (Cannot allocate memory) on X server
>>> :0.0
>>> then a bit later:
>>> Csound tidy up: Segmentation fault
>>>
>>> What do I need to change?
>>>
>>> Art Hunkins
>>>
>>>
>>> Send bugs reports to this list.
>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>>> csound"
>>
>
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--
Andrés
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