March 2011 - Pharo-dev - lists.pharo.org

[Pharo-project] [OT] GTK3 directions - what about Morphic ?

by laurent laffont

Hi, I've seen: - you can style GTK3 with CSS: http://gnomejournal.org/article/107/styling-gtk-with-css - GTK3 apps can be rendered in a web browser: http://blogs.gnome.org/alexl/2010/11/23/gtk3-vs-html5/ This sounds sexy. I wonder how hard it would be to have SimpleMorphic go in this direction. And whether this is useful or not. Laurent.

March 16, 2011

Re: [Pharo-project] Issue 3581 in pharo: [Failing test] 1.1.1 Full: MethodWrappers.Tests.ObjectAsOneTimeMethodWrapperTest.testInstallOnClassCategory

by pharo＠googlecode.com

Updates: Status: Closed Comment #13 on issue 3581 by marianopeck: [Failing test] 1.1.1 Full: MethodWrappers.Tests.ObjectAsOneTimeMethodWrapperTest.testInstallOnClassCategory http://code.google.com/p/pharo/issues/detail?id=3581 Yes, that's perfect. THe other possibility was to implemented this way_ ObjectAsMethodWrapper>>flushCache <primitive: 116> Anyway, I commit your version because in this case it is cleaner. Name: MethodWrappers-MarianoMartinezPeck.6 Author: MarianoMartinezPeck Time: 16 March 2011, 10:57:08 am UUID: 48366448-4da1-4351-98f5-8a5f16d52be2 Ancestors: MethodWrappers-MarianoMartinezPeck.5 Implement ObjectAsMethodWrapper>>flushCache so that it flush the entries in the cache that match the selector

March 16, 2011

[Pharo-project] ConfigurationOfSandstoneDb working in 1.2

by Torsten Bergmann

FYI: from an offlist discussion: ConfigurationOfSandstoneDb was updated (version 1.2) to work on Pharo 1.2. Thanks to Ramon Leon. Bye T. -- Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de

March 16, 2011

Re: [Pharo-project] Cog/FFI Return Values

by Mariano Martinez Peck

http://code.google.com/p/cog/issues/list On Wed, Mar 16, 2011 at 8:03 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr > wrote: > ken > > it would be good to enter a bug entry on the cog vm bug tracker. > > Stef > > On Mar 15, 2011, at 11:19 PM, Ken Treis wrote: > > > For kicks, I tried running the GemStone tools in a Cog VM. It *almost* > works. Apparently this sort of call: > > > >> apiGciPerform: anOopType a: aString a: anArray a: anInteger > >> > >> <apicall: OopType64 'GciPerform' (OopType64 char* ulong long) > > >> ^self externalCallFailed > > > > ... works differently now. In the old (non-Cog) VM, it return an instance > of OopType64. In Cog, it returns a SmallInteger. > > > > The function itself returns a uint64_t, so apparently the OopType64 class > (a subclass of ExternalStructure) is being used to trick the FFI into > automatically wrapping the return value in the way we want. > > > > 1. Is this trick no longer supported/legit (assuming it ever was)? > > 2. Is there a better way to accomplish the same thing, or do we just have > to do the wrapping ourselves now? > > > > I'm pretty new to the FFI, so forgive me if the premise is wrong. All I > know is that it doesn't work the way it used to. :) > > > > -- > > Ken Treis > > Miriam Technologies, Inc. > > > > > > >

March 16, 2011

Re: [Pharo-project] Lumiere on Linux?

by Fernando Olivero

I've never tried AlienOpenGL using Linux, i was using a MAC. It only requires a VM that works with Alien. As i mentioned, if people are interested in having the abstractions of cameras and scenes of Lumiere, it would be worth decoupling Lumiere-AlienOpenGL, by providing: Lumiere-NBoost OpenGL or Lumiere-CroquetOpenGL. The coupling is loose, since Lumiere only adds an abstraction layer on top of the existing OpenGL binding, and also provides Scenes <-->Morphic interaction. Fernando On Sun, Mar 13, 2011 at 2:55 PM, Schwab,Wilhelm K <bschwab(a)anest.ufl.edu> wrote: > Using libGL.so.1 gives similar results :( > > > > ________________________________________ > From: pharo-project-bounces(a)lists.gforge.inria.fr [pharo-project-bounces(a)lists.gforge.inria.fr] On Behalf Of Lemuus [lemuus(a)gmail.com] > Sent: Saturday, March 12, 2011 9:48 PM > To: Pharo-project(a)lists.gforge.inria.fr > Subject: Re: [Pharo-project] Lumiere on Linux? > > I think that the correct choice is libGL.so,but I'm just guessing. > > On Sat, Mar 12, 2011 at 9:43 PM, Schwab,Wilhelm K <bschwab(a)anest.ufl.edu<mailto:bschwab@anest.ufl.edu>> wrote: > I tried the 1.2 one-click with Lumiere. Â Following the collaboractive book, > > Â Gofer it > Â Â Â squeaksource: 'Lumiere'; > Â Â Â package: 'ConfigurationOfLumiere'; > Â Â Â load. > Â Â Â ( Smalltalk globals classNamed:'ConfigurationOfLumiere' ) perform: #loadDefault. > > led to a warning about DisplayList(??), but seemed to work otherwise. Â Trying an example such as #testRenderingSphere gave an error trying open OpenGL.framework, which I had trouble finding on Linux. Â Changing AlienOpenGLLibrary>>libraryName to answer 'libglut.so.3' gets it to the point of a segment fault, shown below. Â Is glut the correct choice, or do I need to get or specify some other library? > > Bill > > > > > Segmentation fault > > Smalltalk stack dump: > 0xbfd1714c I AlienOpenGLLibrary>glMatrixMode: 2033044028: a(n) AlienOpenGLLibrary > 0xbfd17170 M [] in AlienOpenGLLibraryExamples>testRenderingSphere 2033042940: a(n) AlienOpenGLLibraryExamples > 0xbfd17190 M BlockClosure>ensure: 2033043980: a(n) BlockClosure > 0xbfd171b4 M AlienOpenGLLibraryExamples>testRenderingSphere 2033042940: a(n) AlienOpenGLLibraryExamples > 0xbfd171d4 I AlienOpenGLLibraryExamples class>run: 2024758496: a(n) AlienOpenGLLibraryExamples class > 0xbfd171f0 M AlienOpenGLLibraryExamples class>? 2024758496: a(n) AlienOpenGLLibraryExamples class > 0xbfd17228 I Compiler>evaluate:in:to:notifying:ifFail:logged: 2032491124: a(n) Compiler > 0xbfd17268 I [] in OBTextMorphEditorWithShout(SmalltalkEditor)>evaluateSelection 2025101912: a(n) OBTextMorphEditorWithShout > 0xbfd17284 M BlockClosure>on:do: 2032491080: a(n) BlockClosure > 0xbfd172b8 I OBTextMorphEditorWithShout(SmalltalkEditor)>evaluateSelection 2025101912: a(n) OBTextMorphEditorWithShout > 0xbfd172d0 M [] in OBPluggableTextMorphWithShout(PluggableTextMorph)>doIt 2024962936: a(n) OBPluggableTextMorphWithShout > 0xbfd172f8 I [] in OBPluggableTextMorphWithShout(PluggableTextMorph)>handleEdit: 2024962936: a(n) OBPluggableTextMorphWithShout > 0xbfd17318 I OBTextMorphWithShout(TextMorph)>handleEdit: 2024964024: a(n) OBTextMorphWithShout > 0xbfd17340 I OBPluggableTextMorphWithShout(PluggableTextMorph)>handleEdit: 2024962936: a(n) OBPluggableTextMorphWithShout > 0xbfd1735c M OBPluggableTextMorphWithShout(PluggableTextMorph)>doIt 2024962936: a(n) OBPluggableTextMorphWithShout > 0xbfd17378 M OBDefinitionPanel(OBTextPanel)>perform:orSendTo: 2024940940: a(n) OBDefinitionPanel > 0xbfd173a8 I [] in ToggleMenuItemMorph(MenuItemMorph)>invokeWithEvent: 2031928172: a(n) ToggleMenuItemMorph > 0xbfd173c8 M BlockClosure>ensure: 2032477540: a(n) BlockClosure > 0xbfd173f0 I CursorWithMask(Cursor)>showWhile: 2002515888: a(n) CursorWithMask > 0xbfd17418 I ToggleMenuItemMorph(MenuItemMorph)>invokeWithEvent: 2031928172: a(n) ToggleMenuItemMorph > 0xbfd1743c I ToggleMenuItemMorph(MenuItemMorph)>mouseUp: 2031928172: a(n) ToggleMenuItemMorph > 0xbfd17458 M ToggleMenuItemMorph(MenuItemMorph)>handleMouseUp: 2031928172: a(n) ToggleMenuItemMorph > 0xbfd17474 M MouseButtonEvent>sentTo: 2032130572: a(n) MouseButtonEvent > 0xbfd17490 M ToggleMenuItemMorph(Morph)>handleEvent: 2031928172: a(n) ToggleMenuItemMorph > 0xbfd174c0 M MorphicEventDispatcher>dispatchDefault:with: 2032130556: a(n) MorphicEventDispatcher > 0xbfd174e0 M MorphicEventDispatcher>dispatchEvent:with: 2032130556: a(n) MorphicEventDispatcher > 0xbfd17500 M ToggleMenuItemMorph(Morph)>processEvent:using: 2031928172: a(n) ToggleMenuItemMorph > 0xbfd17534 M MorphicEventDispatcher>dispatchDefault:with: 2032130556: a(n) MorphicEventDispatcher > 0xbfd17554 M MorphicEventDispatcher>dispatchEvent:with: 2032130556: a(n) MorphicEventDispatcher > 0xbfd17574 M MenuMorph(Morph)>processEvent:using: 2031927856: a(n) MenuMorph > 0xbfd17594 M MenuMorph(Morph)>processEvent: 2031927856: a(n) MenuMorph > 0xbfd175b0 M MenuMorph>handleFocusEvent: 2031927856: a(n) MenuMorph > 0xbfd175d8 M [] in HandMorph>sendFocusEvent:to:clear: 2002449320: a(n) HandMorph > 0xbfd175f4 M [] in PasteUpMorph>becomeActiveDuring: 2003523448: a(n) PasteUpMorph > 0xbfd17610 M BlockClosure>on:do: 2032130460: a(n) BlockClosure > 0xbfd1763c M PasteUpMorph>becomeActiveDuring: 2003523448: a(n) PasteUpMorph > 0xbfd17660 M HandMorph>sendFocusEvent:to:clear: 2002449320: a(n) HandMorph > 0xbfd17688 M HandMorph>sendEvent:focus:clear: 2002449320: a(n) HandMorph > 0xbfd176ac M HandMorph>sendMouseEvent: 2002449320: a(n) HandMorph > 0xbfd176d0 M HandMorph>handleEvent: 2002449320: a(n) HandMorph > 0xbfd176fc M HandMorph>processEvents 2002449320: a(n) HandMorph > 0xbfd17714 M [] in WorldState>doOneCycleNowFor: 2004924588: a(n) WorldState > 0xbfd17738 M Array(SequenceableCollection)>do: 2001081712: a(n) Array > 0xbfd17754 M WorldState>handsDo: 2004924588: a(n) WorldState > 0xbfd17770 M WorldState>doOneCycleNowFor: 2004924588: a(n) WorldState > 0xbfd1778c M WorldState>doOneCycleFor: 2004924588: a(n) WorldState > 0xbfd101bc M WorldState>doOneSubCycleFor: 2004924588: a(n) WorldState > 0xbfd101d8 M PasteUpMorph>doOneSubCycle 2003523448: a(n) PasteUpMorph > 0xbfd10200 I MenuMorph>invokeModalAt:in:allowKeyboard: 2031927856: a(n) MenuMorph > 0xbfd1022c I MenuMorph>invokeModal: 2031927856: a(n) MenuMorph > 0xbfd10250 I MenuMorph>invokeModal 2031927856: a(n) MenuMorph > 0xbfd10274 I OBPluggableTextMorphWithShout(PluggableTextMorph)>yellowButtonActivity: 2024962936: a(n) OBPluggableTextMorphWithShout > 0xbfd10298 I OBTextMorphWithShout(TextMorphForEditView)>mouseDown: 2024964024: a(n) OBTextMorphWithShout > 0xbfd102b4 M OBTextMorphWithShout(Morph)>handleMouseDown: 2024964024: a(n) OBTextMorphWithShout > 0xbfd102d0 M MouseButtonEvent>sentTo: 2031927788: a(n) MouseButtonEvent > 0xbfd102ec M OBTextMorphWithShout(Morph)>handleEvent: 2024964024: a(n) OBTextMorphWithShout > 0xbfd10328 M MorphicEventDispatcher>dispatchMouseDown:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd10348 M MorphicEventDispatcher>dispatchEvent:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd10368 M OBTextMorphWithShout(Morph)>processEvent:using: 2024964024: a(n) OBTextMorphWithShout > 0xbfd103a8 M MorphicEventDispatcher>dispatchMouseDown:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd103c8 M MorphicEventDispatcher>dispatchEvent:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd103e8 M TransformMorph(Morph)>processEvent:using: 2024963800: a(n) TransformMorph > 0xbfd10428 M MorphicEventDispatcher>dispatchMouseDown:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd10448 M MorphicEventDispatcher>dispatchEvent:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd10468 M OBPluggableTextMorphWithShout(Morph)>processEvent:using: 2024962936: a(n) OBPluggableTextMorphWithShout > 0xbfd104a8 M MorphicEventDispatcher>dispatchMouseDown:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd104c8 M MorphicEventDispatcher>dispatchEvent:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd104e8 M OBGroupingMorph(Morph)>processEvent:using: 2024957608: a(n) OBGroupingMorph > 0xbfd10528 M MorphicEventDispatcher>dispatchMouseDown:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd10548 M MorphicEventDispatcher>dispatchEvent:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd10568 M OBSystemWindow(Morph)>processEvent:using: 2024944124: a(n) OBSystemWindow > 0xbfd105a8 M MorphicEventDispatcher>dispatchMouseDown:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd105c8 M MorphicEventDispatcher>dispatchEvent:with: 2031927596: a(n) MorphicEventDispatcher > 0xbfd105e8 M PasteUpMorph(Morph)>processEvent:using: 2003523448: a(n) PasteUpMorph > 0xbfd10610 M PasteUpMorph>processEvent:using: 2003523448: a(n) PasteUpMorph > 0xbfd10630 M PasteUpMorph(Morph)>processEvent: 2003523448: a(n) PasteUpMorph > 0xbfd10650 M HandMorph>sendEvent:focus:clear: 2002449320: a(n) HandMorph > 0xbfd10674 M HandMorph>sendMouseEvent: 2002449320: a(n) HandMorph > 0xbfd10698 M HandMorph>handleEvent: 2002449320: a(n) HandMorph > 0xbfd106c4 M HandMorph>processEvents 2002449320: a(n) HandMorph > 0xbfd106dc M [] in WorldState>doOneCycleNowFor: 2004924588: a(n) WorldState > 0xbfd10700 M Array(SequenceableCollection)>do: 2001081712: a(n) Array > 0xbfd1071c M WorldState>handsDo: 2004924588: a(n) WorldState > 0xbfd10738 M WorldState>doOneCycleNowFor: 2004924588: a(n) WorldState > 0xbfd10754 M WorldState>doOneCycleFor: 2004924588: a(n) WorldState > 0xbfd10770 M PasteUpMorph>doOneCycle 2003523448: a(n) PasteUpMorph > 0xbfd10790 I [] in Project class>spawnNewProcess 2004397340: a(n) Project class > 2025126836 s [] in BlockClosure>newProcess > > Most recent primitives > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > at:put: > basicNew > new: > at:put: > at:put: > value:value: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > basicNew > at:put: > at:put: > at:put: > at:put: > basicNew: > at:put: > at:put: > basicNew: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > species > new: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > species > new: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > basicNew: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > basicNew: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > at:put: > new > value:value: > value:value: > basicNew > size > basicNew > byteAt:put: > byteAt:put: > bitXor: > size > species > basicNew: > replaceFrom:to:with:startingAt: > basicNew: > replaceFrom:to:with:startingAt: > replaceFrom:to:with:startingAt: > basicNew: > basicNew > at:put: > species > basicNew: > replaceFrom:to:with:startingAt: > replaceFrom:to:with:startingAt: > size > at:put: > species > basicNew: > replaceFrom:to:with:startingAt: > size > size > size > perform:withArguments: > perform:withArguments: > species > basicNew > new: > value: > perform:withArguments: > at:put: > perform:withArguments: > species > new: > species > new: > species > new: > replaceFrom:to:with:startingAt: > newMethod:header: > at:put: > at:put: > at:put: > objectAt:put: > objectAt:put: > objectAt:put: > objectAt:put: > basicNew > size > objectAt: > basicNew > objectAt: > at:put: > at:put: > at:put: > at:put: > value > objectAt: > size > objectAt: > objectAt: > objectAt: > objectAt: > objectAt: > objectAt:put: > objectAt: > objectAt:put: > withArgs:executeMethod: > basicNew > perform: > basicNew > @ > basicNew > primCreateRenderer:x:y:w:h: > millisecondClockValue > signal > primSignal:atMilliseconds: > millisecondClockValue > wait > primGetNextEvent: > millisecondClockValue > wait > signal > millisecondClockValue > primSignal:atMilliseconds: > millisecondClockValue > wait > signal > wait > at:put: > primRender:getProperty: > basicNew > primLoadLibrary: > basicNew: > sizeFieldPut: > unsignedLongAt:put: > basicNew > new: > value > value > basicNew: > sizeFieldPut: > unsignedLongAt:put: > basicNew > at:put: > primFindSymbol: > basicNew: > sizeFieldPut: > addressFieldPut: > primFFICallResult:with: > Aborted > > > > >

March 16, 2011

Re: [Pharo-project] Lumiere on Linux?

by Fernando Olivero

Igor, i would love to have the time for working on the OpenGl bindings to NBoost for the MAC. And then combine your text rendering examples with Pango, to combine: Canvas + Text support. I guess once i finish my Phd i will have time! In any case i will try to dedicate some spare time whenever i can to this. Fernando On Wed, Mar 16, 2011 at 8:12 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > igor > > first a canvas because lot of people can help for using it and this will support parallelisation of actions. > > Stef > >> from this message i learn that i have to kick my ass and continue >> working on NativeBoost, >> including its OpenGL bindings. >> >> Too bad, there is not much people who can do low level assembly + VM >> hacking + openGL hacking >> and interested in pushing NB forward and/or collaborating with me :( >> >> On 16 March 2011 00:17, Fernando Olivero <fernando.olivero(a)usi.ch> wrote: >>> Hi Alex, Â i'm sad to hear that AlienOpenGL is not working for you, i'm >>> currently not mainting it. IMO opinion the Croquet OpengL and Igor's >>> native boost OpenGL are far better choices for interfacing with >>> OpenGL. >>> Lumiere is conceptually designed to work with any of the above, but >>> currently tied to AlienOpenGL. Wouldn't take much to plug the other >>> two, and you would get the high level abstractions over OpenGL that >>> Lumiere offers. >>> >>> Regarding the boost, it highly depends on the 3D application being >>> built. http://www.opengl.org/resources/code/samples/advanced/advanced97/notes/node… >>> Anyway, Croquet OpenGL does the computation on Smalltalk, (but i think >>> FloatArray is using a plugin).With Lumiere i left the matrix >>> calculations to OpenGL, but you get less functionality. >>> >>> The boost comes not from the matrix calculations but Â because of the >>> efficient rendering engine (parallel pipelines) implemented in low >>> level language, as opposed doing everything in Smalltalk. >>> Again, this depends on the 3D application being built. >>> >>> Regarding the tool that you mentioned, Â how do you simulate 3D, in the >>> 2D Morphic framework? I'm finding hard to understand how can you >>> achieve a Morphic cube. >>> >>> Saludos, >>> Fernando >>> >>> On Tue, Mar 15, 2011 at 7:29 PM, Alexandre Bergel >>> <alexandre.bergel(a)me.com> wrote: >>>>> Great. Â What about the usual "native code" speed boost? Â Are you writing a plugin, or is it all Smalltalk code? >>>> >>>> It is all Smalltalk code. We are not against native libraries, however we could not make it run. And so, after several months of intensive tries. So, in order to make some progress, we coded a 3d engine in Smalltalk. Actually, this is not difficult (for basic functionalities such as light, cubes, camera -- no texture and complex light rendering). I did a 2d engine for Mondrian. So having a 3d engine should not be that hard (actually it is not). The nice advantage, that it should work on the ipad, iphone, web, ... >>>> >>>> Other things, I would be surprise to have a significant boost by using OpenGL for rendering objects if all the matrix computations are realized in Smalltalk. Anyone can comment on it? >>>> >>>> Cheers, >>>> Alexandre >>>> >> >> >> -- >> Best regards, >> Igor Stasenko AKA sig. >> > >

March 16, 2011

[Pharo-project] Issue 3821 in pharo: makeStrong/makeWeak contains a bug

by pharo＠googlecode.com

Status: Accepted Owner: stephane...(a)gmail.com CC: siguc...(a)gmail.com, ryd...(a)gmail.com Labels: Milestone-1.3 New issue 3821 by stephane...(a)gmail.com: makeStrong/makeWeak contains a bug http://code.google.com/p/pharo/issues/detail?id=3821 makeStrong/makeWeak contains a bug, because it is using #becomeForward: but doesn't takes into account that subscription stored in a set , which is hash-based , so after become, the item will be at wrong position. So, we need to implement announcer>>replace: subscription with: newOne then a) we don't have to use become b) it will be thread safe, because you can protect replacement in subscription registry with monitor As an alternative, we can use Set instead of IdentitySet, and implement #hash and #== for subscriptions which don't changing when you switch between weak/strong. Then we can keep using #becomeForward: -- Best regards, Igor Stasenko AKA sig.

March 16, 2011

Re: [Pharo-project] Lumiere on Linux?

by StÃ©phane Ducasse

igor first a canvas because lot of people can help for using it and this will support parallelisation of actions. Stef > from this message i learn that i have to kick my ass and continue > working on NativeBoost, > including its OpenGL bindings. > > Too bad, there is not much people who can do low level assembly + VM > hacking + openGL hacking > and interested in pushing NB forward and/or collaborating with me :( > > On 16 March 2011 00:17, Fernando Olivero <fernando.olivero(a)usi.ch> wrote: >> Hi Alex, i'm sad to hear that AlienOpenGL is not working for you, i'm >> currently not mainting it. IMO opinion the Croquet OpengL and Igor's >> native boost OpenGL are far better choices for interfacing with >> OpenGL. >> Lumiere is conceptually designed to work with any of the above, but >> currently tied to AlienOpenGL. Wouldn't take much to plug the other >> two, and you would get the high level abstractions over OpenGL that >> Lumiere offers. >> >> Regarding the boost, it highly depends on the 3D application being >> built. http://www.opengl.org/resources/code/samples/advanced/advanced97/notes/node… >> Anyway, Croquet OpenGL does the computation on Smalltalk, (but i think >> FloatArray is using a plugin).With Lumiere i left the matrix >> calculations to OpenGL, but you get less functionality. >> >> The boost comes not from the matrix calculations but because of the >> efficient rendering engine (parallel pipelines) implemented in low >> level language, as opposed doing everything in Smalltalk. >> Again, this depends on the 3D application being built. >> >> Regarding the tool that you mentioned, how do you simulate 3D, in the >> 2D Morphic framework? I'm finding hard to understand how can you >> achieve a Morphic cube. >> >> Saludos, >> Fernando >> >> On Tue, Mar 15, 2011 at 7:29 PM, Alexandre Bergel >> <alexandre.bergel(a)me.com> wrote: >>>> Great. What about the usual "native code" speed boost? Are you writing a plugin, or is it all Smalltalk code? >>> >>> It is all Smalltalk code. We are not against native libraries, however we could not make it run. And so, after several months of intensive tries. So, in order to make some progress, we coded a 3d engine in Smalltalk. Actually, this is not difficult (for basic functionalities such as light, cubes, camera -- no texture and complex light rendering). I did a 2d engine for Mondrian. So having a 3d engine should not be that hard (actually it is not). The nice advantage, that it should work on the ipad, iphone, web, ... >>> >>> Other things, I would be surprise to have a significant boost by using OpenGL for rendering objects if all the matrix computations are realized in Smalltalk. Anyone can comment on it? >>> >>> Cheers, >>> Alexandre >>> > > > -- > Best regards, > Igor Stasenko AKA sig. >

March 16, 2011

Re: [Pharo-project] Cog/FFI Return Values

by StÃ©phane Ducasse

ken it would be good to enter a bug entry on the cog vm bug tracker. Stef On Mar 15, 2011, at 11:19 PM, Ken Treis wrote: > For kicks, I tried running the GemStone tools in a Cog VM. It *almost* works. Apparently this sort of call: > >> apiGciPerform: anOopType a: aString a: anArray a: anInteger >> >> <apicall: OopType64 'GciPerform' (OopType64 char* ulong long) > >> ^self externalCallFailed > > ... works differently now. In the old (non-Cog) VM, it return an instance of OopType64. In Cog, it returns a SmallInteger. > > The function itself returns a uint64_t, so apparently the OopType64 class (a subclass of ExternalStructure) is being used to trick the FFI into automatically wrapping the return value in the way we want. > > 1. Is this trick no longer supported/legit (assuming it ever was)? > 2. Is there a better way to accomplish the same thing, or do we just have to do the wrapping ourselves now? > > I'm pretty new to the FFI, so forgive me if the premise is wrong. All I know is that it doesn't work the way it used to. :) > > -- > Ken Treis > Miriam Technologies, Inc. > >

March 16, 2011

Re: [Pharo-project] Lumiere on Linux?

by Igor Stasenko

from this message i learn that i have to kick my ass and continue working on NativeBoost, including its OpenGL bindings. Too bad, there is not much people who can do low level assembly + VM hacking + openGL hacking and interested in pushing NB forward and/or collaborating with me :( On 16 March 2011 00:17, Fernando Olivero <fernando.olivero(a)usi.ch> wrote: > Hi Alex, Â i'm sad to hear that AlienOpenGL is not working for you, i'm > currently not mainting it. IMO opinion the Croquet OpengL and Igor's > native boost OpenGL are far better choices for interfacing with > OpenGL. > Lumiere is conceptually designed to work with any of the above, but > currently tied to AlienOpenGL. Wouldn't take much to plug the other > two, and you would get the high level abstractions over OpenGL that > Lumiere offers. > > Regarding the boost, it highly depends on the 3D application being > built. http://www.opengl.org/resources/code/samples/advanced/advanced97/notes/node… > Anyway, Croquet OpenGL does the computation on Smalltalk, (but i think > FloatArray is using a plugin).With Lumiere i left the matrix > calculations to OpenGL, but you get less functionality. > > The boost comes not from the matrix calculations but Â because of the > efficient rendering engine (parallel pipelines) implemented in low > level language, as opposed doing everything in Smalltalk. > Again, this depends on the 3D application being built. > > Regarding the tool that you mentioned, Â how do you simulate 3D, in the > 2D Morphic framework? I'm finding hard to understand how can you > achieve a Morphic cube. > > Saludos, > Fernando > > On Tue, Mar 15, 2011 at 7:29 PM, Alexandre Bergel > <alexandre.bergel(a)me.com> wrote: >>> Great. Â What about the usual "native code" speed boost? Â Are you writing a plugin, or is it all Smalltalk code? >> >> It is all Smalltalk code. We are not against native libraries, however we could not make it run. And so, after several months of intensive tries. So, in order to make some progress, we coded a 3d engine in Smalltalk. Actually, this is not difficult (for basic functionalities such as light, cubes, camera -- no texture and complex light rendering). I did a 2d engine for Mondrian. So having a 3d engine should not be that hard (actually it is not). The nice advantage, that it should work on the ipad, iphone, web, ... >> >> Other things, I would be surprise to have a significant boost by using OpenGL for rendering objects if all the matrix computations are realized in Smalltalk. Anyone can comment on it? >> >> Cheers, >> Alexandre >> -- Best regards, Igor Stasenko AKA sig.

March 16, 2011