etoys-dev December 2006

etoys-dev@lists.squeakfoundation.org

14 participants
20 discussions

[Etoys] New RPMs
by Bert Freudenberg 11 Dec '06

11 Dec '06

Hi folks, I just released new packages, for both image and VM. If you configured yum, this should work: yum update etoys squeak-vm Otherwise, you can download from http://etoys.laptop.org/ We have switched to the 2.0 update stream now. When running in Sugar, the image is notified when the activity is focused so it can turn off sounds while in background (see class SugarLauncher). You can test this without Sugar by creating a command pipe manually: mkfifo /tmp/squeak cat > /tmp/squeak In a second shell, run etoys: etoys sugarPipe /tmp/squeak Make a project that repeatedly plays some sound. Then, in the first shell, type DEACTIVATE to turn sound off and ACTIVATE to reactivate it. A welcome addition would be a way to test this outside Sugar. It should work on OS/X although I do not have tested it, yet. Might work on Windows, don't know if it has named pipes. Anyway, some testing would be nice. A second new addition is Diego's V4LPlugin that allows to access the camera under Linux. I patched it to recognize the palette used on the Btest machine's camera. It's working - yay Diego! :) - Bert -

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[Etoys] Small progress of sound delay issue.
by Takashi Yamamiya 08 Dec '06

08 Dec '06

Hi, I'm still working with sound issue. There is not great progress though, I could find some direction how to deal with it. I guess latency is reduced almost from 0.5 ms to 0.3 ms with this patch. This is just current status. (you can use it to copy vm-sound-ALSA to /usr/lib/squeak/3.9-9/) What I did is; - Setting periods count to two. (more periods cause more latency). - Use "plughw:0,0" device instead of "default" The defect is the sound quality becomes bad! So, I will try another way. I think mmap is good to the purpose. API document said snd_pcm_avail_update() is used with mmap. http://www.alsa-project.org/alsa-doc/alsa-lib/group___p_c_m.html#g8bb836bd0… Cheers, - Takashi Index: platforms/unix/vm-sound-ALSA/sqUnixSoundALSA.c =================================================================== --- platforms/unix/vm-sound-ALSA/sqUnixSoundALSA.c (revision 1586) +++ platforms/unix/vm-sound-ALSA/sqUnixSoundALSA.c (working copy) @@ -33,7 +33,7 @@ #include <errno.h> -static char *sound_device = "default"; +static char *sound_device = "plughw:0,0"; static char *sound_playback = "Master"; static char *sound_capture = "Capture"; @@ -87,9 +87,10 @@ int err; snd_pcm_hw_params_t *hwparams; snd_pcm_sw_params_t *swparams; - snd_pcm_uframes_t frames; unsigned int uval; int dir; + int periodsCount = 2; + snd_pcm_uframes_t bufferSize; if (output_handle) sound_Stop(); @@ -104,10 +105,15 @@ snd_pcm_hw_params_set_channels(output_handle, hwparams, output_channels); uval= samplesPerSec; snd_pcm_hw_params_set_rate_near(output_handle, hwparams, &uval, &dir); - frames= frameCount; - snd_pcm_hw_params_set_period_size_near(output_handle, hwparams, &frames, &dir); + snd(pcm_hw_params_set_periods_near(output_handle, hwparams, &periodsCount, &dir), "pcm_hw_params_set_periods_near"); + bufferSize = frameCount * periodsCount; + snd(pcm_hw_params_set_buffer_size_near(output_handle, hwparams, &bufferSize), "pcm_hw_params_set_buffer_size_near"); + snd(pcm_hw_params(output_handle, hwparams), "sound_Start: snd_pcm_hw_params"); + fprintf(stderr, "Request: frames=%i, periods=%i\n", frameCount, 2); + fprintf(stderr, "Result: frames=%i, periods=%i\n", bufferSize / periodsCount, periodsCount); + snd_pcm_sw_params_alloca(&swparams); snd(pcm_sw_params_current(output_handle, swparams), "sound_Start: snd_pcm_sw_params_current"); snd(pcm_sw_params_set_start_threshold(output_handle, swparams, frameCount * SQ_SND_PLAY_START_THRESHOLD), "sound_Start: snd_pcm_sw_params_set_start_threshold");

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[Etoys] [fix] PasteUpMorph shall not accept ScriptEditorMorph
by Karl 05 Dec '06

05 Dec '06

When you have a Playfield/PasteUpMorph open in the world you had to be careful where you placed the ScriptEditorMorphs otherwise they would embed them self into the Playfield and some annoying cropping would occur. karl 'From OLPC2.0 of ''24 October 2006'' [latest update: #1134] on 1 December 2006 at 4:47:57 pm'! !PasteUpMorph methodsFor: 'dropping/grabbing' stamp: 'kfr 12/1/2006 12:55'! acceptDroppingMorph: dropped event: evt "The supplied morph, known to be acceptable to the receiver, is now to be assimilated; the precipitating event is supplied" | mm tfm aMorph | aMorph _ self morphToDropFrom: dropped. self isWorldMorph ifTrue:["Add the given morph to this world and start stepping it if it wants to be." self addMorphFront: aMorph. (aMorph fullBounds intersects: self viewBox) ifFalse: [Beeper beep. aMorph position: self bounds center]] ifFalse:[(dropped isKindOf: ScriptEditorMorph) ifTrue:[self world acceptDroppingMorph: aMorph event: evt] ifFalse:[super acceptDroppingMorph: aMorph event: evt]]. aMorph submorphsDo: [:m | (m isKindOf: HaloMorph) ifTrue: [m delete]]. aMorph allMorphsDo: "Establish any penDown morphs in new world" [:m | m player ifNotNil: [m player getPenDown ifTrue: [((mm _ m player costume) notNil and: [(tfm _ mm owner transformFrom: self) notNil]) ifTrue: [self noteNewLocation: (tfm localPointToGlobal: mm referencePosition) forPlayer: m player]]]]. self isPartsBin ifTrue: [aMorph isPartsDonor: true. aMorph stopSteppingSelfAndSubmorphs. aMorph suspendEventHandler] ifFalse: [self world startSteppingSubmorphsOf: aMorph]. self presenter morph: aMorph droppedIntoPasteUpMorph: self. self showingListView ifTrue: [self sortSubmorphsBy: (self valueOfProperty: #sortOrder). self currentWorld abandonAllHalos]! !

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[Etoys] [BUG]SelectionMorph does not understand: #target
by karl 04 Dec '06

04 Dec '06

Trying to delete 2 or more items with the SelectionMorph give a DNU. Select 2 or more items, click the X handle: boom. Karl

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[Etoys] [ENH]BookMorph buttons more visible
by karl 02 Dec '06

02 Dec '06

A enhancement that make the BookMorph buttons stand out a little more. Karl 'From OLPC2.0 of ''24 October 2006'' [latest update: #1134] on 2 December 2006 at 8:19:11 pm'! !BooklikeMorph methodsFor: 'page controls' stamp: 'kfr 11/19/2006 19:11'! makePageControlsFrom: controlSpecs "From the controlSpecs, create a set of page control and return them -- this method does *not* add the controls to the receiver." | c col row b lastGuy | c _ (color saturation > 0.1) ifTrue: [color slightlyLighter] ifFalse: [color slightlyDarker]. col _ AlignmentMorph newColumn. col color: c; borderWidth: 0; layoutInset: 0. col hResizing: #spaceFill; vResizing: #shrinkWrap; extent: 5@5. row _ AlignmentMorph newRow. row color: c; borderWidth: 0; layoutInset: 0. row hResizing: #spaceFill; vResizing: #shrinkWrap; extent: 5@5. row on: #mouseDown send: #moveViaTitle to: self. controlSpecs do: [:spec | spec == #spacer ifTrue: [row addTransparentSpacerOfSize: (10 @ 0)] ifFalse: [spec == #variableSpacer ifTrue: [row addMorphBack: AlignmentMorph newVariableTransparentSpacer] ifFalse: [b _ SimpleButtonMorph new target: self; borderWidth: 2; borderColor: Color black; color: c darker. b label: spec first font: Preferences standardMenuFont; actionSelector: spec second; borderWidth: 0; setBalloonText: spec third. row addMorphBack: b. (((lastGuy _ spec last asLowercase) includesSubString: 'menu') or: [lastGuy includesSubString: 'designations']) ifTrue: [b actWhen: #buttonDown]]]]. "pop up menu on mouseDown" col addMorphBack: row. ^ col! !

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[Etoys] [BUG]ScriptEditorMorph>>acceptDroppingMorph: aMorph event: evt
by Karl 02 Dec '06

02 Dec '06

There is a small bug in ScriptEditorMorph>>acceptDroppingMorph: aMorph event: evt when you drop a WatcherWrapper on a test tile. The ScriptEditorMorph creates a form of the dropped tile to animate the tile sliding into it. But when the dropped morph is a WatcherWrapper the form is wider than the tile morph the WatcherWrapper gets replaced with and thus a drawing artifact is left on the screen. Look at attached image. I'm not sure how fix this. Karl

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[Etoys] [FIX]Position of picked up tile morph
by Karl 02 Dec '06

02 Dec '06

Some tiles (like a new script) get a big offset when they are picked up from the viewer. To me it seems like a a feature that is obsolete. I commented out the offset part and the look and feel is more consistent. Karl 'From OLPC2.0 of ''24 October 2006'' [latest update: #1134] on 2 December 2006 at 12:02:51 pm'! !PhraseTileMorph methodsFor: 'mouse' stamp: 'kfr 12/2/2006 12:01'! mouseDown: evt "Handle a mouse-down on the receiver" | ed guyToTake dup enclosingPhrase | self removeHighlightFeedback. self isPartsDonor ifTrue: [dup _ self duplicate. dup eventHandler: nil. "Remove viewer-related evt mouseover feedback" evt hand attachMorph: dup. dup position: evt position" + (-25@8)". "So that the drag vs. click logic works" dup formerPosition: evt position. ^ self]. submorphs isEmpty ifTrue: [^ self]. guyToTake _ self. [(enclosingPhrase _ guyToTake ownerThatIsA: PhraseTileMorph) notNil] whileTrue: [guyToTake _ enclosingPhrase]. "This logic always grabs the outermost phrase, for now anyway" "the below had comment: 'picking me out of another phrase'" "owner class == TilePadMorph ifTrue: [(ss _ submorphs first) class == TilePadMorph ifTrue: [ss _ ss submorphs first]. guyToTake _ ss veryDeepCopy]." (ed _ self enclosingEditor) ifNil: [^ evt hand grabMorph: guyToTake]. evt hand grabMorph: guyToTake. ed startStepping. ed mouseEnterDragging: evt. ed setProperty: #justPickedUpPhrase toValue: true. ! !

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[Etoys] Re: Camera support and ALSA diffs
by Ian Piumarta 02 Dec '06

02 Dec '06

Bert, ALSA diffs and camera support (renamed to VideoForLinuxPlugin) is committed. Please check that video and sound works in your image with these sources. Thanks! Cheers, Ian

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[Etoys] sound player shutdown when initiating painting
by Scott Wallace 01 Dec '06

01 Dec '06

I just noticed that playback of sound using the EventRecorder stops abruptly if the event-recording includes a painting session. Just before the paint palette appears on playback, sound playback simply stops. I've tracked this down to the recent addition of WorldStethoscope code, in which a "SoundPlayer shutDown" call was added to PasteUpMorph >> stopRunningAll. So it seems that either #stopRunningAll should be restored to its original functionality, which was to suspend all ticking scripts but not to mess with sound playback, or else we can change the get-ready- to-paint code so that it no longer calls #stopRunningAll, but instead calls some to-be-written method that does the original intended work of #stopRunningAll, but without the additional clobbering of sound. What do you think? Cheers, -- Scott

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[Etoys] Bug in fill in the blank
by karl 01 Dec '06

01 Dec '06

Seem like a bug in fill in the blank widget when there is a big text in it's heading. Look at attachment. karl

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etoys-dev December 2006