June 2014 - Pharo-dev - lists.pharo.org

zip filesystem test cases?

by Tudor Girba

Hi, I am looking into how to fix the Zip FileSystem: https://pharo.fogbugz.com/f/cases/12826/Zip-FileSystem-does-not-work Has any of you ever used it before? Also, Camillo mentioned that he saw some test cases, but I could not find any (I also checked in the repo of Lukas). Does any of you have some more information? Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow"

June 17, 2014

Re: [Pharo-dev] Do we need SourceWebBrowser in the image?

by Sven Van Caekenberghe

I suspect the idea is that it can function as a fallback for opening an external browser on a URL. On 17 Jun 2014, at 22:49, Tudor Girba <tudor(a)tudorgirba.com> wrote: > I do not see why we would need this class at all. Certainly not in the image. > > Doru > > > On Tue, Jun 17, 2014 at 10:45 PM, stepharo <stepharo(a)free.fr> wrote: > this is a browser opening the result of one get: on a url in a workspace. > > Stef > > > > > > -- > www.tudorgirba.com > > "Every thing has its own flow"

June 17, 2014

Re: [Pharo-dev] Performance for Video Games(Woden Video)

by Ronie Salgado

> > using OSWindow and SDL2, I suppose? > Yes, I am. > how can I play with that? > In the video description a put a link to my page of OSWindow, in which I have an outdated Woden image. Using Monticello with that image it should be possible to use the latest version. I think its awesome that you try to make a 3d game engine for Pharo. I know > its not an easy task by a long mark, its tons of hard work to have > something reliable. Thank you for your efforts and if you want a beta > tester I will be more than happy to help you. > By using some libraries such as Bullet for physics, OpenAL for 3D audio it is not too much work. For generating the Bullet binding I will be using Swig (the binding generator). For music, libogg and libvorbis. It is not too much. In the end, our biggest concern is rendering and game logic, Saying that I am highly skeptical . There is a reason why 3d engines rarely > become popular in dynamic languages. Performance. Same reason why > C/C++dominate 3d graphics and audio synthesis. > Static compiler optimizations that provides a deterministic runtime performance and lack of modern system programming languages such as D. Their great advantage is in their support for primitive types, which have a well defined memory layout and accesses. Currently, we can do that kind of stuff by using NativeBoost, but it is very hard to use. We will see about this problem in his due time. 2014-06-16 4:13 GMT-04:00 kilon alios <kilon.alios(a)gmail.com>: > I think its awesome that you try to make a 3d game engine for Pharo. I > know its not an easy task by a long mark, its tons of hard work to have > something reliable. Thank you for your efforts and if you want a beta > tester I will be more than happy to help you. > > Saying that I am highly skeptical . There is a reason why 3d engines > rarely become popular in dynamic languages. Performance. Same reason why > C/C++dominate 3d graphics and audio synthesis. > > I agree that sending things to GPU will greatly boost performance for > Pharo not just for Graphics but for all sort of things. CUDA and OpenCL can > be used for loads of different computations and a good modern GPU can offer > 8 times the performance of a good CPU. > > On the other hand having a good 3d game engine for Pharo is a thousand > times better than not having such a thing at all. So keep rocking :) > > > On Fri, Jun 13, 2014 at 6:16 AM, Ronie Salgado <roniesalg(a)gmail.com> > wrote: > >> I am working on making a video game engine in Pharo. Recently added a FPS >> counter and recorded some samples: http://youtu.be/-2ida5Q1mbg . >> >> Lets say I was quite surprised, so I have yet a lot more to optimize, but >> a good trick seems to be making some computation in the GPU. >> >> In this video, I show 6 early examples. The water example is still >> incomplete, missing reflection/refractions, but it shows what happens when >> I compute the water waves using a shader in the GPU. >> >> Please, pay a close attention to the FPS count. >> >> BTW, it feels slow because of the screen capture and the tearing is there >> because I haven't enabled vsync, but I have support for it. >> >> Greetings, >> Ronie Salgado >> > >

June 17, 2014

Re: [Pharo-dev] Do we need SourceWebBrowser in the image?

by Tudor Girba

I do not see why we would need this class at all. Certainly not in the image. Doru On Tue, Jun 17, 2014 at 10:45 PM, stepharo <stepharo(a)free.fr> wrote: > this is a browser opening the result of one get: on a url in a workspace. > > Stef > > > -- www.tudorgirba.com "Every thing has its own flow"

June 17, 2014

Do we need SourceWebBrowser in the image?

by stepharo

this is a browser opening the result of one get: on a url in a workspace. Stef

June 17, 2014

Re: [Pharo-dev] ConfigurationOfSandstoneDB?

by stepharo

On 17/6/14 22:29, Udo Schneider wrote: > On 17.06.14 19:17, Stephan Eggermont wrote:> The official repo is: > That's the repo I'm using manually at the moment. > > > Last change was a year ago, so it might need some changes. > Yep - I needed to fix some FileSystem calls. Also it seems the > original configuration got lost over time. I think I'll post my fixes > and a configuration on my SH page. you can commit in the metacello repository. and probably ask the right to commit to the original repo and if you do not get an answer clone it fully. There is nothing worse than having bit there and there. The are gofer script in DeepIntoPharo Gofer chapter to copy repositories. > > Thanks, > > Udo > > > > > >

June 17, 2014

Re: [Pharo-dev] ConfigurationOfSandstoneDB?

by stepharo

Hi MetacelloRepository is not read-only. Everybody can post there. We should just be logged. And now there is even a public area. Now did you check if the SandstoneBD repository contains a more recent configurationOf? Stef > All, > > I'm searching for an up-to-date version of ConfigurationOfSandstoneDB. > > In the past I used the MetacelloRepository on SS. However this doesn't > seem to be updated anymore (as a side-effect of SS being made read-only). > > So can anybody point me to an updated version of > ConfigurationOfSandstoneDB or even better to an "official" successor > of MetacelloRepository? > > Thanks, > > Udo > > > >

June 17, 2014

Re: [Pharo-dev] prepared inclusion of OSWindow

by Ronie Salgado

Hi Stef We don't need OSWindow-X11. I am keeping it for history purpose. It is also unmaintained. indicates > package: 'NBXLib-Core'; and I wonder why Oops, my mistake. A copy pasta. I am waiting for the inclusion to perform more testing and repairing the bugs present in Windows. Best regards, Ronie 2014-06-17 15:50 GMT-04:00 stepharo <stepharo(a)free.fr>: > Hi Igor and Ronie > > following igor advice I'm preparing to integration OSWindow in Pharo. I > copied all the packages to Pharo/OSWindow. > > Now to fully work I imagine that SDL2 should be linked to the VM so that > it can work. > I need to know which package make sense to be loaded > > > I imagine that this is > OSWindow-Core > OSWindow-SDL2 > > https://pharo.fogbugz.com/default.asp?12743#103040 > > indicates > package: 'NBXLib-Core'; and I wonder why > > Why do we need also the OSWindow-X11 if we use SDL > Stef > >

June 17, 2014

Re: [Pharo-dev] [ann] beacon - a slim announcement-based logging engine

by Tudor Girba

Hi Norbert, On Tue, Jun 17, 2014 at 5:09 PM, Norbert Hartl <norbert(a)hartl.name> wrote: ... > If you have an hammer everything looks like a nail. > > > Right. In my case it is just a gut feeling I had all the time. Might be it > turns out that announcements are not the way to go. But I want to look at > it. > Thanks. > To me it just kills my fun. > > I understand and Iâm sorry if the mail I wrote supported that. To be > really honest I had the same feeling when I talked with Sven and Doru. It > appeared to me that everyone wanted to place his own solution. But I like > to take the chance that we get something out where a lot of people are > happy with. On the other hand SystemLogger is not final. It can be improved > and we should improve it. Now it is the time to collaborate and tame our > egos. Otherwise there will be three half baked approaches, one in zinc, one > in GT* tools and one in pharo. That would be the worst outcome. In order to > prevent that I wanted to talk. Just that! > Indeed. I think nobody wants that. But the very fact that we are talking about ideas and that we all want to compare with one another will exactly lead us to one strong solution :) My plan is to: > > - look at beacon to see what Doru has in his mind. Maybe I get a good idea > from it > - then I would look at Svenâs new code to see the difference to Doruâs and > to actual see if that works for more than a framework > I think they are the same conceptually. On the one hand, Sven's code is more specific to Zinc, but the cool thing about it is that we get real use cases for typed events. > - finally I would like to look at the SystemLogger design again and > improve it where it might be improved. > - then there will be a new version of SystemLogger. Thatâs it. > > I personally donât plan to skip SystemLogger in favour of beacon or zinc > log. > Nor should you :). We should build one whatever the name is. Let's just take the time to compare the concepts and we see afterwards. beacon is a proof of concept but there are AFAIK no formatters, outputs and > so on. > I think Beacon is actually a full implementation of a logger. There are as many outputs as there are in the core of SystemLogger. As for formatters, I explicitly did not want them in the core because I think we should not favor text too prominently. I think that scrolling through a text file is not a good direction and that we should instead build logging analysis tools as I tried to explain in the blog post. The video of Sven shows how this can look in practice. So it is not even a replacement for SystemLogger. Zinc log is a log system > for a single framework called zinc. Iâm not sure it can be useful for > anything else and I donât think Sven is hitting in that direction. I want a > basic logging support that either has a central access for pain free > logging or it has multiple announcers (maybe one per module/framework) that > can be composed to a log source that can be attached to some kind of > dispatcher. I donât know. That I need to figure out > Great. Doru > > Norbert > > We all should review the other implementations and all of us should be > open minded for any reason why the own implementation is probably _not_ the > way to go. > I wish we can find an agreement about an optimal implementation we like to > promote. > > Norbert > > > It is called Beacon, it is based entirely on Announcements, it has > ~200 lines of code, it has no tags or levels, and in my opinion it is fully > functional. > > You can see a detailed description here including some informal > comparisons with SystemLogger: > http://www.humane-assessment.com/blog/beacon > > Please let me know what you think. I would be happy to join forces to > reach a mature solution that is both versatile and that can show how Pharo > is different. > > So should we see it as a competitor to SystemLogger? > (you will say of course not) but I do not understand. > > > > Cheers, > Doru > > -- > www.tudorgirba.com > > "Every thing has its own flow" > > > > > > -- www.tudorgirba.com "Every thing has its own flow"

June 17, 2014

special meaning of keystroke Ctrl+D

by Nicolai Hess

Someone knows for why this is needed: KeyboardEvent>>#hasSpecialCTRLKeyValue " 4 - Character end 1 - Character home " ^ self controlKeyPressed and: [ keyValue <= 26 & (keyValue ~= 4) & (keyValue ~= 1) ] I know that the Ctrl-Key changes some keyvalues and so, the keycharacters have to be recomputed from the keyvalue(look at senders of #hasSpecialCTRLKeyValue). But why are 4 and 1 excluded? At least on windows, ctrl+d is mapped to "4" and with the above method ctrl+d is never recognized as ctrl+d but as ctrl+end.

June 17, 2014