August 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Again: Basic Questions about NativeBoost

by Igor Stasenko

On 28 August 2012 14:02, drush66 <davorin.rusevljan(a)gmail.com> wrote: > Does NB support writing callbacks in smalltalk that can be called by external > library? > the support is there.. but it is not functional .. yet. So, the answer is: NO. But no, you can write callbacks using smalltalk, if that smalltalk is assember code, which you will generate to implement callback in native form. So, then answer is: YES .. or still NO, depending if you willing to do that :) Yeah.. thanks for reminder. i need to deal with that part -- Best regards, Igor Stasenko.

Aug. 28, 2012

Re: [Pharo-project] [ANN] NativeBoost v 1.3

by Igor Stasenko

On 28 August 2012 16:31, S Krish <krishnamachari.sudhakar(a)gmail.com> wrote: >> > Cannot parse. You want to integrate it till it fails? :) > > > Yes.. keep it in from now on in the main base till it shows up as unusable. > I do not mind occasional instability.. or something I can workaround... :). > i think you meant 'i will use it till i find a better alternative'. That's fine. I do not pretend to have best of the best, which will answer all of your needs :) > Need to learn and deep dive to use it to exploit its potential ... which is > huge.. at the minimum as a replacement to FFI.. I guess more efficiently.. > you don't need to guess. You can measure it. :) > > **** > > Rest is all fine.. its a great piece of work.. will dive into ARM / et als > when I do need them over the next year.. > > > On Tue, Aug 28, 2012 at 2:12 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: >> >> On 28 August 2012 08:48, S Krish <krishnamachari.sudhakar(a)gmail.com> >> wrote: >> > It works for most parts. There are few examples I will send in a note >> > that >> > is broken. >> > >> > viz: AthensSurfaceExamples >> #exampleStrokeRect should probably in its >> > subclass AthensCairoSurfaceExamples >> > >> > * #exampleDrawText.. and believe other Text drawing expect FreeTypeFont >> > only >> > as asserted ... but are sent StrikeFont.. >> > >> > * AthensTestRenderTest >> #testWindowRender fails as the >> > PluggableTextMorph >> >>> initialize has a an empty text #setText: '' call.. >> > >> >> this is what i do, when i get something working, i have a small >> "doits" which then eventually turned into methods like above. >> some of them became obsolete as project evolves.. and need to be >> changed/cleaned up. >> Certainly, i need to do a pass on it to keep things clean and free >> from confusion. >> >> > Need to go down lot more.. and play with it.. seems really neat for >> > external >> > module callout.. >> > >> > Great stuff, need to get down to bottom of it.. incentive enough to >> > re-learn >> > the necessary bits about assembly lang. Will look at integrating this >> > permanently with my works till it fails to live up as stable.. >> > >> Cannot parse. You want to integrate it till it fails? :) >> >> > >> > BTW: is it extensible to ARM..? I believe so.. also for Raspberry kind >> > of >> > kits.. >> > >> > Long way off to try that out.. but just interested in knowing.. >> > >> All of the code is in image, at our disposal. >> So, it is doable, of course. The only question is who is willing to do >> that and invest his/her time on it. :) >> >> >> >> -- >> Best regards, >> Igor Stasenko. >> > -- Best regards, Igor Stasenko.

Aug. 28, 2012

Re: [Pharo-project] Who broke UTF8TextConverter?

by Igor Stasenko

On 28 August 2012 14:45, Henrik Sperre Johansen <henrik.s.johansen(a)veloxit.no> wrote: > On 28.08.2012 14:35, Igor Stasenko wrote: >> >> or it was like that from the birth?? >> >> arrrrgghhhh... >> >> | stream | >> stream := WriteStream on: (ByteArray new: 100). >> >> UTF8TextConverter new nextPut: (Character value: 129 ) toStream: stream. >> >> stream contents >> #[129] >> >> This is WRONG! RTFM, about utf8 encoding, please! :) >> >> --------- >> >> nextPut: aCharacter toStream: aStream >> | leadingChar nBytes mask shift ucs2code | >> aStream isBinary ifTrue: [^aCharacter storeBinaryOn: aStream]. >> >> in my case, stream is binary, so it goes directly to #storeBinaryOn: >> >> storeBinaryOn: aStream >> "Store the receiver on a binary (file) stream" >> value < 256 >> ifTrue:[aStream basicNextPut: value] >> ifFalse:[aStream nextInt32Put: value]. >> >> This is not even close to UTF8. >> If character code is less than 256, it will store a single byte (wtf?), >> and if more than that, it will store 32-bit integer value in >> big-endian order (wtf raisedToPower: 2).. >> >> i wonder , for what purpose we actually having this code path? this >> stuff is completely useless. >> according to implementation of storeBinaryOn: >> there's no way how you can read the same character value back. >> because it can be 1 byte or 4 bytes.. but you simply cannot determine >> which one. >> this is one of the reasons we using utf8 encoding, btw ;) >> > It's been this way from the start. so, it was broken from the start? the point is, that i am talking specifically about UTF8Converter... i don't care about any grade of polymorphism/megamorphism/whatevermorphism inherited from TextConverters.. but by simplest logic, my ignorant expectation was that UTF8Converter should convert its input into utf8 form or die trying.. but not something which not even remotely related to utf8.. wtf? Because if i don't need it to be converted to utf8, then why i would bother using it in a first place? > You want to sanely encode to in-memory bytearrays, use the Zn converters. > You want to conveniently switch between putting binary and encoded contents > to a filestream (and do so efficiently), use the TextConverters. > conveniently? are you joking? :) conveniently is when i say things once, either: newstream := converter on: stream. x timesRepeat: [ newstream nextPut: oneElement ]. or stream addConverter: myconverter. x timesRepeat: [ stream nextPut: oneElement ]. but instead i forced to use it like: x timesRepeat: [ converter nextPut: oneElement onStream: stream ] it is neither convenient, nor optimal, because you operating with three entities in a loop: - stream, converter and element, while you really need only two. But aside of that, is there a reason why we must have 2 implementations of very same thing in our 'clean' system? If we have that , i think, we should stop calling it clean :) Sven told, why he implemented his own - just because the existing one is inherently broken (well, it was more polite form if i remember). Maybe Sven is too polite to put it straight or don't wants to shake the very foundations of our beautiful text conversion ecosystem.. But i don't mind to say it: TextConverters is piece of crap and we need to throw it out and replaced with something better or review/refactor/(choose your path).. So if some of you feel offended, i am sorry. You're a good guy/girl, who produced this code. The problem is that code doesn't follows "The principle of a least wtf". :) -- Best regards, Igor Stasenko.

Aug. 28, 2012

Re: [Pharo-project] Why it takes much more time to load stuff in 2.0 comparing to 1.4?

by Igor Stasenko

On 28 August 2012 14:55, Camillo Bruni <camillobruni(a)gmail.com> wrote: > run it in the profiler and compare the results. > I am very interested int he results :P we can try it tomorrow, if you will be there :) > > On 2012-08-28, at 04:06, Igor Stasenko <siguctua(a)gmail.com> wrote: > >> I was checking how ConfigurationOfNativeBoost behaves on 1.4 >> and i noticed that it loads like 3-5 times faster comparing to 2.0.. >> >> and i refusing to believe this is because of different network latency, >> because most time which it spends during loading in 2.0 is showing >> "compiling / installing" >> progress but not "downloading". >> >> -- >> Best regards, >> Igor Stasenko. >> > > -- Best regards, Igor Stasenko.

Aug. 28, 2012

[Pharo-project] The MC diff tool highligting is broken

by Igor Stasenko

in 2.0 it highlights random portions of text, completely out of sync with real difference. and if you resize the window, it doesn't changes, it doesn't follows the text.. (i think this can be a good hint to look for a place to fix) -- Best regards, Igor Stasenko.

Aug. 28, 2012

Re: [Pharo-project] Multiple worlds

by Patrick Barroca

Hello, You can check this entry in Laurent's blog. http://magaloma.blogspot.fr/2011/06/multiple-worlds-for-twm.html On Tue, Aug 28, 2012 at 4:34 PM, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > Hello again, > > A follow-up question. > > I loaded the TilingWindowManager (TWM) by Laurent Laffont. > ( MetacelloConfigurationBrowser open. ) > > TWM is supposed to support multiple virtual desktops. > How do I start using this feature? > > E.g. a pointer to a blog entry? > > Thank you in advance. > > --Hannes > > On 8/28/12, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > > Hello > > > > Any news on having multiple virtual desktops in Pharo? > > > > I currently use Pharo 1.4, maybe it is in 2.0? > > > > Regards > > --Hannes > > > > On 5/2/12, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > >> Esteban > >> > >> Having multiple virtual desktops is cool and this is not the full > project > >> syndrome so we should check the code and if it is small > >> and nice integrate it. > >> > >> Stef > >> > >> > >>> Hi, > >>> > >>> I propose to just close the issue... having different words don't seems > >>> to > >>> match with current pharo approach and future envisioned scenarios. > >>> (I'm sorry if someone is expecting that) > >>> > >>> best, > >>> Esteban > >>> > >>> On May 2, 2012, at 3:28 PM, Marcus Denker wrote: > >>> > >>>> > >>>> On May 2, 2012, at 3:23 PM, H. Hirzel wrote: > >>>> > >>>>> Hello > >>>>> > >>>>> This issue > >>>>> http://code.google.com/p/pharo/issues/detail?id=3545 > >>>>> is about the feature of having multiple worlds. Status is 'Accepted'. > >>>>> > >>>> Accepted means accepted for thinking about, there is no commitment. > >>>> > >>>>> I assume it is now in Pharo 1.4. > >>>>> > >>>>> How can I use it. > >>>>> > >>>>> The code I found from Sean is > >>>>> > >>>>> "Add a world:" > >>>>> WorldManager instance createOrSwitchToWorldNamed: 'JustAnotherWorld'. > >>>>> > >>>>> "Return to the default world:" > >>>>> WorldManager instance createOrSwitchToWorldNamed: 'Pharo'. > >>>>> > >>>>> What are the proper instructions? > >>>> > >>>> > >>>> It's a bug tracker entry. Not a package for users to use. > >>>> > >>>> Marcus > >>>> > >>>> -- > >>>> Marcus Denker -- http://marcusdenker.de > >>>> > >>>> > >>> > >>> > >> > >> > >> > > > > -- Patrick Barroca

Aug. 28, 2012

Re: [Pharo-project] Multiple worlds // how to switch between them...

by H. Hirzel

To be more precise. Is there another way than WorldManager instance createOrSwitchToWorldNamed: 'myOtherDesktop'. and then back with WorldManager instance createOrSwitchToWorldNamed: 'Pharo'. On 8/28/12, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > Hello again, > > A follow-up question. > > I loaded the TilingWindowManager (TWM) by Laurent Laffont. > ( MetacelloConfigurationBrowser open. ) > > TWM is supposed to support multiple virtual desktops. > How do I start using this feature? > > E.g. a pointer to a blog entry? > > Thank you in advance. > > --Hannes > > On 8/28/12, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: >> Hello >> >> Any news on having multiple virtual desktops in Pharo? >> >> I currently use Pharo 1.4, maybe it is in 2.0? >> >> Regards >> --Hannes >> >> On 5/2/12, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >>> Esteban >>> >>> Having multiple virtual desktops is cool and this is not the full >>> project >>> syndrome so we should check the code and if it is small >>> and nice integrate it. >>> >>> Stef >>> >>> >>>> Hi, >>>> >>>> I propose to just close the issue... having different words don't seems >>>> to >>>> match with current pharo approach and future envisioned scenarios. >>>> (I'm sorry if someone is expecting that) >>>> >>>> best, >>>> Esteban >>>> >>>> On May 2, 2012, at 3:28 PM, Marcus Denker wrote: >>>> >>>>> >>>>> On May 2, 2012, at 3:23 PM, H. Hirzel wrote: >>>>> >>>>>> Hello >>>>>> >>>>>> This issue >>>>>> http://code.google.com/p/pharo/issues/detail?id=3545 >>>>>> is about the feature of having multiple worlds. Status is 'Accepted'. >>>>>> >>>>> Accepted means accepted for thinking about, there is no commitment. >>>>> >>>>>> I assume it is now in Pharo 1.4. >>>>>> >>>>>> How can I use it. >>>>>> >>>>>> The code I found from Sean is >>>>>> >>>>>> "Add a world:" >>>>>> WorldManager instance createOrSwitchToWorldNamed: 'JustAnotherWorld'. >>>>>> >>>>>> "Return to the default world:" >>>>>> WorldManager instance createOrSwitchToWorldNamed: 'Pharo'. >>>>>> >>>>>> What are the proper instructions? >>>>> >>>>> >>>>> It's a bug tracker entry. Not a package for users to use. >>>>> >>>>> Marcus >>>>> >>>>> -- >>>>> Marcus Denker -- http://marcusdenker.de >>>>> >>>>> >>>> >>>> >>> >>> >>> >> >

Aug. 28, 2012

Re: [Pharo-project] Multiple worlds

by H. Hirzel

Hello again, A follow-up question. I loaded the TilingWindowManager (TWM) by Laurent Laffont. ( MetacelloConfigurationBrowser open. ) TWM is supposed to support multiple virtual desktops. How do I start using this feature? E.g. a pointer to a blog entry? Thank you in advance. --Hannes On 8/28/12, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > Hello > > Any news on having multiple virtual desktops in Pharo? > > I currently use Pharo 1.4, maybe it is in 2.0? > > Regards > --Hannes > > On 5/2/12, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >> Esteban >> >> Having multiple virtual desktops is cool and this is not the full project >> syndrome so we should check the code and if it is small >> and nice integrate it. >> >> Stef >> >> >>> Hi, >>> >>> I propose to just close the issue... having different words don't seems >>> to >>> match with current pharo approach and future envisioned scenarios. >>> (I'm sorry if someone is expecting that) >>> >>> best, >>> Esteban >>> >>> On May 2, 2012, at 3:28 PM, Marcus Denker wrote: >>> >>>> >>>> On May 2, 2012, at 3:23 PM, H. Hirzel wrote: >>>> >>>>> Hello >>>>> >>>>> This issue >>>>> http://code.google.com/p/pharo/issues/detail?id=3545 >>>>> is about the feature of having multiple worlds. Status is 'Accepted'. >>>>> >>>> Accepted means accepted for thinking about, there is no commitment. >>>> >>>>> I assume it is now in Pharo 1.4. >>>>> >>>>> How can I use it. >>>>> >>>>> The code I found from Sean is >>>>> >>>>> "Add a world:" >>>>> WorldManager instance createOrSwitchToWorldNamed: 'JustAnotherWorld'. >>>>> >>>>> "Return to the default world:" >>>>> WorldManager instance createOrSwitchToWorldNamed: 'Pharo'. >>>>> >>>>> What are the proper instructions? >>>> >>>> >>>> It's a bug tracker entry. Not a package for users to use. >>>> >>>> Marcus >>>> >>>> -- >>>> Marcus Denker -- http://marcusdenker.de >>>> >>>> >>> >>> >> >> >> >

Aug. 28, 2012

Re: [Pharo-project] [ANN] NativeBoost v 1.3

by S Krish

> Cannot parse. You want to integrate it till it fails? :) Yes.. keep it in from now on in the main base till it shows up as unusable. I do not mind occasional instability.. or something I can workaround... :). Need to learn and deep dive to use it to exploit its potential ... which is huge.. at the minimum as a replacement to FFI.. I guess more efficiently.. **** Rest is all fine.. its a great piece of work.. will dive into ARM / et als when I do need them over the next year.. On Tue, Aug 28, 2012 at 2:12 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: > On 28 August 2012 08:48, S Krish <krishnamachari.sudhakar(a)gmail.com> > wrote: > > It works for most parts. There are few examples I will send in a note > that > > is broken. > > > > viz: AthensSurfaceExamples >> #exampleStrokeRect should probably in its > > subclass AthensCairoSurfaceExamples > > > > * #exampleDrawText.. and believe other Text drawing expect FreeTypeFont > only > > as asserted ... but are sent StrikeFont.. > > > > * AthensTestRenderTest >> #testWindowRender fails as the > PluggableTextMorph > >>> initialize has a an empty text #setText: '' call.. > > > > this is what i do, when i get something working, i have a small > "doits" which then eventually turned into methods like above. > some of them became obsolete as project evolves.. and need to be > changed/cleaned up. > Certainly, i need to do a pass on it to keep things clean and free > from confusion. > > > Need to go down lot more.. and play with it.. seems really neat for > external > > module callout.. > > > > Great stuff, need to get down to bottom of it.. incentive enough to > re-learn > > the necessary bits about assembly lang. Will look at integrating this > > permanently with my works till it fails to live up as stable.. > > > Cannot parse. You want to integrate it till it fails? :) > > > > > BTW: is it extensible to ARM..? I believe so.. also for Raspberry kind of > > kits.. > > > > Long way off to try that out.. but just interested in knowing.. > > > All of the code is in image, at our disposal. > So, it is doable, of course. The only question is who is willing to do > that and invest his/her time on it. :) > > > > -- > Best regards, > Igor Stasenko. > >

Aug. 28, 2012

Re: [Pharo-project] Multiple worlds

by H. Hirzel

Hello Any news on having multiple virtual desktops in Pharo? I currently use Pharo 1.4, maybe it is in 2.0? Regards --Hannes On 5/2/12, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Esteban > > Having multiple virtual desktops is cool and this is not the full project > syndrome so we should check the code and if it is small > and nice integrate it. > > Stef > > >> Hi, >> >> I propose to just close the issue... having different words don't seems to >> match with current pharo approach and future envisioned scenarios. >> (I'm sorry if someone is expecting that) >> >> best, >> Esteban >> >> On May 2, 2012, at 3:28 PM, Marcus Denker wrote: >> >>> >>> On May 2, 2012, at 3:23 PM, H. Hirzel wrote: >>> >>>> Hello >>>> >>>> This issue >>>> http://code.google.com/p/pharo/issues/detail?id=3545 >>>> is about the feature of having multiple worlds. Status is 'Accepted'. >>>> >>> Accepted means accepted for thinking about, there is no commitment. >>> >>>> I assume it is now in Pharo 1.4. >>>> >>>> How can I use it. >>>> >>>> The code I found from Sean is >>>> >>>> "Add a world:" >>>> WorldManager instance createOrSwitchToWorldNamed: 'JustAnotherWorld'. >>>> >>>> "Return to the default world:" >>>> WorldManager instance createOrSwitchToWorldNamed: 'Pharo'. >>>> >>>> What are the proper instructions? >>> >>> >>> It's a bug tracker entry. Not a package for users to use. >>> >>> Marcus >>> >>> -- >>> Marcus Denker -- http://marcusdenker.de >>> >>> >> >> > > >

Aug. 28, 2012