[etoys-dev] Etoys Inbox: Sound-kfr.23.mcz

commits at source.squeak.org commits at source.squeak.org
Thu Feb 23 10:33:09 EST 2012


A new version of Sound was added to project Etoys Inbox:
http://source.squeak.org/etoysinbox/Sound-kfr.23.mcz

==================== Summary ====================

Name: Sound-kfr.23
Author: kfr
Time: 23 February 2012, 4:32:48 pm
UUID: 0c62a595-a9df-1941-b595-0195b44bc759
Ancestors: Sound-kfr.22

Use left and right sound volume, as integers.

=============== Diff against Sound-kfr.22 ===============

Item was changed:
  ----- Method: AbstractSound>>playSampleCount:into:startingAt: (in category 'playing') -----
  playSampleCount: n into: aSoundBuffer startingAt: startIndex
  	"Mix the next n samples of this sound into the given buffer starting at the given index. Update the receiver's control parameters periodically."
  
  	| fullVol samplesBetweenControlUpdates pastEnd i remainingSamples count |
+ 	fullVol := (AbstractSound scaleFactor * SoundPlayer soundVolume) rounded . 
- 	fullVol := AbstractSound scaleFactor * SoundPlayer soundVolume average.
  	samplesBetweenControlUpdates _ self samplingRate // self controlRate.
  	pastEnd _ startIndex + n.  "index just after the last sample"
  	i _ startIndex.
  	[i < pastEnd] whileTrue: [
  		remainingSamples _ self samplesRemaining.
  		remainingSamples <= 0 ifTrue: [^ self].
  		count _ pastEnd - i.
  		samplesUntilNextControl < count ifTrue: [count _ samplesUntilNextControl].
  		remainingSamples < count ifTrue: [count _ remainingSamples].
+ 		self mixSampleCount: count into: aSoundBuffer startingAt: i leftVol: fullVol first rightVol: fullVol second.
- 		self mixSampleCount: count into: aSoundBuffer startingAt: i leftVol: fullVol rightVol: fullVol.
  		samplesUntilNextControl _ samplesUntilNextControl - count.
  		samplesUntilNextControl <= 0 ifTrue: [
  			self doControl.
  			samplesUntilNextControl _ samplesBetweenControlUpdates].
  		i _ i + count].
  !



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