VM Maker: VMMaker-dtl.356.mcz

 
David T. Lewis uploaded a new version of VMMaker to project VM Maker:
http://source.squeak.org/VMMaker/VMMaker-dtl.356.mcz

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

Name: VMMaker-dtl.356
Author: dtl
Time: 16 December 2014, 9:20:35.462 pm
UUID: b4a4af04-ab24-45ac-9c5e-7fb83c764a85
Ancestors: VMMaker-dtl.355

VMMaker 4.13.9 - Update ScratchPlugin from VMMaker.oscog-tpr.989 plus previous updates by Eliot:

Name: VMMaker.oscog-tpr.989
Author: tpr
Time: 16 December 2014, 2:59:27.229 pm
Update the ScratchPlugin bilinear scaling prim to include the correct alpha channel value for non-transparent output pixels.

=============== Diff against VMMaker-dtl.355 ===============

Item was removed:
- ----- Method: ScratchPlugin class>>declareCVarsIn: (in category 'translation') -----
- declareCVarsIn: aCCodeGenerator
- "self translate"
-
- super declareCVarsIn: aCCodeGenerator.
- aCCodeGenerator
- addHeaderFile: '<math.h>';
- addHeaderFile: '<stdlib.h>';
- addHeaderFile: '<string.h>'.
- !

Item was changed:
  ----- Method: ScratchPlugin>>primOpenPortNamed (in category 'serial port') -----
  primOpenPortNamed
  "Open the port with the given name and baud rate."
 
  | nameStr src nameOop baudRate count portNum |
  <export: true>
  <var: 'nameStr' declareC: 'char nameStr[1000]'>
+ <var: 'src' type: #'char *'>
- <var: 'src' declareC: 'char * src'>
 
  nameOop := interpreterProxy stackValue: 1.
  baudRate := interpreterProxy stackIntegerValue: 0.
 
+ interpreterProxy success: (interpreterProxy isBytes: nameOop).
- ((interpreterProxy isIntegerObject: nameOop) or:
- [(interpreterProxy isBytes: nameOop) not]) ifTrue: [
- interpreterProxy success: false.
- ^ 0].
 
  interpreterProxy failed ifTrue: [^ 0].
 
+ src := self cCoerce: (interpreterProxy firstIndexableField: nameOop) to: #'char *'.
- src := self cCoerce: (interpreterProxy firstIndexableField: nameOop) to: 'char *'.
  count := interpreterProxy stSizeOf: nameOop.
  0 to: count - 1 do: [:i | nameStr at: i put: (src at: i)].
  nameStr at: count put: 0.
 
+ portNum := self SerialPortOpen: nameStr PortNamed: baudRate.
- portNum := self cCode: 'SerialPortOpenPortNamed(nameStr, baudRate)'.
  portNum = -1 ifTrue: [interpreterProxy success: false. ^ 0].
 
  interpreterProxy "pop args and rcvr, push result"
  pop: 3
  thenPush: (interpreterProxy integerObjectOf: portNum).
 
  ^ 0
  !

Item was changed:
  ----- Method: ScratchPlugin>>primRead (in category 'serial port') -----
  primRead
  "Read data from the given serial port into the given buffer (a ByteArray or String). Answer the number of bytes read."
 
+ | portNum bufOop bytesRead |
- | portNum bufOop bufPtr bufSize bytesRead |
  <export: true>
- <var: 'bufPtr' declareC: 'char *bufPtr'>
 
  portNum := interpreterProxy stackIntegerValue: 1.
  bufOop := interpreterProxy stackValue: 0.
 
+ interpreterProxy success: (interpreterProxy isBytes: bufOop).
+ interpreterProxy failed ifTrue: [^ 0].
- ((interpreterProxy isIntegerObject: bufOop) or:
- [(interpreterProxy isBytes: bufOop) not]) ifTrue: [
- interpreterProxy success: false.
- ^ 0].
- bufPtr := self cCoerce: (interpreterProxy firstIndexableField: bufOop) to: 'char *'.
- bufSize := interpreterProxy stSizeOf: bufOop.
- interpreterProxy failed ifTrue: [^ nil].
 
+ bytesRead := self Serial: portNum
+ Port: (self cCoerce: (interpreterProxy firstIndexableField: bufOop) to: 'char *')
+ Read: (interpreterProxy stSizeOf: bufOop).
- bytesRead := self cCode: 'SerialPortRead(portNum, bufPtr, bufSize)'.
 
  interpreterProxy pop: 3.   "pop args and rcvr"
  interpreterProxy pushInteger: bytesRead. "push result"
+ ^ 0!
- ^ 0
- !

Item was changed:
  ----- Method: ScratchPlugin>>primWrite (in category 'serial port') -----
  primWrite
  "Write data to the given serial port from the given buffer (a ByteArray or String). Answer the number of bytes written."
 
+ | portNum bufOop bytesWritten |
- | portNum bufOop bufPtr bufSize bytesWritten |
  <export: true>
- <var: 'bufPtr' declareC: 'char *bufPtr'>
 
  portNum := interpreterProxy stackIntegerValue: 1.
  bufOop := interpreterProxy stackValue: 0.
 
+ interpreterProxy success: (interpreterProxy isBytes: bufOop).
+ interpreterProxy failed ifTrue: [^ 0].
- ((interpreterProxy isIntegerObject: bufOop) or:
- [(interpreterProxy isBytes: bufOop) not]) ifTrue: [
- interpreterProxy success: false.
- ^ 0].
- bufPtr := self cCoerce: (interpreterProxy firstIndexableField: bufOop) to: 'char *'.
- bufSize := interpreterProxy stSizeOf: bufOop.
- interpreterProxy failed ifTrue: [^ nil].
 
+ bytesWritten := self Serial: portNum
+ Port: (self cCoerce: (interpreterProxy firstIndexableField: bufOop) to: 'char *')
+ Write: (interpreterProxy stSizeOf: bufOop).
- bytesWritten := self cCode: 'SerialPortWrite(portNum, bufPtr, bufSize)'.
 
+ interpreterProxy pop: 3.   "pop args and rcvr"
- interpreterProxy pop: 3.   "pop args and rcvr"
  interpreterProxy pushInteger: bytesWritten. "push result"
+ ^ 0!
- ^ 0
- !

Item was changed:
  ----- Method: ScratchPlugin>>primitiveFisheye (in category 'other filters') -----
  primitiveFisheye
 
  | inOop outOop width in out sz height centerX centerY dx dy ang pix power r srcX srcY scaledPower |
  <export: true>
+ <var: 'in' type: #'unsigned int *'>
+ <var: 'out' type: #'unsigned int *'>
+ <var: 'dx' type: #double>
+ <var: 'dy' type: #double>
+ <var: 'ang' type: #double>
+ <var: 'r' type: #double>
+ <var: 'scaledPower' type: #double>
- <var: 'in' declareC: 'unsigned int *in'>
- <var: 'out' declareC: 'unsigned int *out'>
- <var: 'scaleX' declareC: 'double scaleX'>
- <var: 'scaleY' declareC: 'double scaleY'>
- <var: 'whirlRadians' declareC: 'double whirlRadians'>
- <var: 'radiusSquared' declareC: 'double radiusSquared'>
- <var: 'dx' declareC: 'double dx'>
- <var: 'dy' declareC: 'double dy'>
- <var: 'd' declareC: 'double d'>
- <var: 'factor' declareC: 'double factor'>
- <var: 'ang' declareC: 'double ang'>
- <var: 'sina' declareC: 'double sina'>
- <var: 'cosa' declareC: 'double cosa'>
- <var: 'r' declareC: 'double r'>
- <var: 'scaledPower' declareC: 'double scaledPower'>
 
  inOop := interpreterProxy stackValue: 3.
  outOop := interpreterProxy stackValue: 2.
  width := interpreterProxy stackIntegerValue: 1.
  power := interpreterProxy stackIntegerValue: 0.
  in := self checkedUnsignedIntPtrOf: inOop.
  out := self checkedUnsignedIntPtrOf: outOop.
  sz := interpreterProxy stSizeOf: inOop.
  interpreterProxy success: ((interpreterProxy stSizeOf: outOop) = sz).
  interpreterProxy failed ifTrue: [^ nil].
 
  "calculate height, center, scales, radius, whirlRadians, and radiusSquared"
  height := sz // width.
  centerX := width // 2.
  centerY := height // 2.
 
  height := sz // width.
  centerX := width // 2.
  centerY := height // 2.
  scaledPower := power / 100.0.
 
  0 to: width - 1 do: [:x |
  0 to: height - 1 do: [:y |
  dx := (x - centerX) / centerX asFloat.
  dy := (y - centerY) / centerY asFloat.
  r := ((dx * dx) + (dy * dy)) sqrt raisedTo: scaledPower.
  r <= 1.0
  ifTrue: [
  ang := self cCode: 'atan2(dy,dx)'.
  srcX := (1024 * (centerX + ((r * ang cos) * centerX))) asInteger.
  srcY := (1024 * (centerY + ((r * ang sin) * centerY))) asInteger]
  ifFalse: [
  srcX := 1024 * x.
  srcY := 1024 * y].
  pix := self interpolatedFrom: in
  x: srcX
  y: srcY
  width: width
  height: height.
  out at: ((y * width) + x "+ 1 for Squeak") put: pix]].
 
  interpreterProxy pop: 4.  "pop args, leave rcvr on stack"
  ^ 0
  !

Item was changed:
  ----- Method: ScratchPlugin>>primitiveIsHidden (in category 'os functions') -----
  primitiveIsHidden
  "Answer true if the file or folder with the given path should be hidden from the user. On Windows, this is the value of the 'hidden' file property."
 
  | pathOop src count fullPath result |
  <export: true>
  <var: 'fullPath' declareC: 'char fullPath[1000]'>
+ <var: 'src' type: #'char *'>
- <var: 'src' declareC: 'char * src'>
 
  pathOop := interpreterProxy stackValue: 0.
 
+ interpreterProxy success: (interpreterProxy isBytes: pathOop).
- ((interpreterProxy isIntegerObject: pathOop) or:
- [(interpreterProxy isBytes: pathOop) not]) ifTrue: [
- interpreterProxy success: false].
 
  interpreterProxy failed ifTrue: [^ 0].
 
+ src := self cCoerce: (interpreterProxy firstIndexableField: pathOop) to: #'char *'.
- src := self cCoerce: (interpreterProxy firstIndexableField: pathOop) to: 'char *'.
  count := interpreterProxy stSizeOf: pathOop.
  count >= 1000 ifTrue: [interpreterProxy success: false. ^ 0].
  0 to: count - 1 do: [:i | fullPath at: i put: (src at: i)].
  fullPath at: count put: 0.
 
+ result := self IsFileOrFolderHidden: fullPath.
- result := self cCode: 'IsFileOrFolderHidden(fullPath)'.
 
  interpreterProxy pop: 2.  "pop arg and rcvr"
  interpreterProxy pushBool: result ~= 0.  "push result"
+ ^ 0!
- ^ 0
-
- !

Item was changed:
  ----- Method: ScratchPlugin>>primitiveOpenURL (in category 'os functions') -----
  primitiveOpenURL
  "Open a web browser on the given URL."
 
  | urlStr src urlOop count |
  <export: true>
  <var: 'urlStr' declareC: 'char urlStr[2000]'>
+ <var: 'src' type: #'char *'>
- <var: 'src' declareC: 'char * src'>
 
  urlOop := interpreterProxy stackValue: 0.
 
+ interpreterProxy success: (interpreterProxy isBytes: urlOop).
- ((interpreterProxy isIntegerObject: urlOop) or:
- [(interpreterProxy isBytes: urlOop) not]) ifTrue: [
- interpreterProxy success: false].
 
  interpreterProxy failed ifTrue: [^ 0].
 
+ src := self cCoerce: (interpreterProxy firstIndexableField: urlOop) to: #'char *'.
- src := self cCoerce: (interpreterProxy firstIndexableField: urlOop) to: 'char *'.
  count := interpreterProxy stSizeOf: urlOop.
  count >= 2000 ifTrue: [interpreterProxy success: false. ^ 0].
  0 to: count - 1 do: [:i | urlStr at: i put: (src at: i)].
  urlStr at: count put: 0.
 
+ self OpenURL: urlStr.
- self cCode: 'OpenURL(urlStr)'.
 
  interpreterProxy pop: 1.  "pop arg, leave rcvr on stack"
+ ^ 0!
- ^ 0
-
- !

Item was changed:
  ----- Method: ScratchPlugin>>primitiveScale (in category 'scaling') -----
  primitiveScale
  "Scale using bilinear interpolation."
+ "This version isn't really able to do much with full ARGB based images; the A channel will be ignored and only fully transparent pixels will be treated as transparent. The output pixel will be either fully transparent or fully opaque."
 
  | inOop inW inH outOop outW outH in out inX inY xIncr yIncr outPix w1 w2 w3 w4 t p1 p2 p3 p4 tWeight |
  <export: true>
  <var: 'in' declareC: 'int *in'>
  <var: 'out' declareC: 'int *out'>
 
  inOop := interpreterProxy stackValue: 5.
  inW := interpreterProxy stackIntegerValue: 4.
  inH := interpreterProxy stackIntegerValue: 3.
  outOop := interpreterProxy stackValue: 2.
  outW := interpreterProxy stackIntegerValue: 1.
  outH := interpreterProxy stackIntegerValue: 0.
 
  interpreterProxy success: (interpreterProxy stSizeOf: inOop) = (inW * inH).
  interpreterProxy success: (interpreterProxy stSizeOf: outOop) = (outW * outH).
  in := self checkedUnsignedIntPtrOf: inOop.
  out := self checkedUnsignedIntPtrOf: outOop.
  interpreterProxy failed ifTrue: [^ nil].
 
  inX := inY := 0. "source x and y, scaled by 1024"
  xIncr := (inW * 1024) // outW. "source x increment, scaled by 1024"
  yIncr := (inH * 1024) // outH. "source y increment, scaled by 1024"
 
  0 to: (outH - 1) do: [:outY |
  inX := 0.
  0 to: (outW - 1) do: [:outX |
  "compute weights, scaled by 2^20"
  w1 := (1024 - (inX bitAnd: 1023)) * (1024 - (inY bitAnd: 1023)).
  w2 := (inX bitAnd: 1023) * (1024 - (inY bitAnd: 1023)).
  w3 := (1024 - (inX bitAnd: 1023)) * (inY bitAnd: 1023).
  w4 := (inX bitAnd: 1023) * (inY bitAnd: 1023).
 
  "get source pixels"
  t := ((inY >> 10) * inW) + (inX >> 10).
  p1 := in at: t.
  ((inX >> 10) < (inW - 1)) ifTrue: [p2 := in at: t + 1] ifFalse: [p2 := p1].
  (inY >> 10) < (inH - 1) ifTrue: [t := t + inW].  "next row"
  p3 := in at: t.
  ((inX >> 10) < (inW - 1)) ifTrue: [p4 := in at: t + 1] ifFalse: [p4 := p3].
 
  "deal with transparent pixels"
+ "Note as above - only transparent not translucent"
  tWeight := 0.
  p1 = 0 ifTrue: [p1 := p2. tWeight := tWeight + w1].
  p2 = 0 ifTrue: [p2 := p1. tWeight := tWeight + w2].
  p3 = 0 ifTrue: [p3 := p4. tWeight := tWeight + w3].
  p4 = 0 ifTrue: [p4 := p3. tWeight := tWeight + w4].
  p1 = 0 ifTrue: [p1 := p3. p2 := p4].  "both top pixels were transparent; use bottom row"
  p3 = 0 ifTrue: [p3 := p1. p4 := p2].  "both bottom pixels were transparent; use top row"
 
  outPix := 0.
  tWeight < 500000 ifTrue: [  "compute an (opaque) output pixel if less than 50% transparent"
  t := (w1 * ((p1 >> 16) bitAnd: 255)) + (w2 * ((p2 >> 16) bitAnd: 255)) + (w3 * ((p3 >> 16) bitAnd: 255)) + (w4 * ((p4 >> 16) bitAnd: 255)).
  outPix := ((t >> 20) bitAnd: 255) << 16.
  t := (w1 * ((p1 >> 8) bitAnd: 255)) + (w2 * ((p2 >> 8) bitAnd: 255)) + (w3 * ((p3 >> 8) bitAnd: 255)) + (w4 * ((p4 >> 8) bitAnd: 255)).
  outPix := outPix bitOr: (((t >> 20) bitAnd: 255) << 8).
  t := (w1 * (p1 bitAnd: 255)) + (w2 * (p2 bitAnd: 255)) + (w3 * (p3 bitAnd: 255)) + (w4 * (p4 bitAnd: 255)).
  outPix := outPix bitOr: ((t >> 20) bitAnd: 255).
+ "If the result is black, remember to make it Squeak-standard-fake-black"
+ outPix = 0 ifTrue: [outPix := 1].
+ "add the A channel to make it really opaque"
+ outPix := outPix bitOr: 16rFF000000].
- outPix = 0 ifTrue: [outPix := 1]].
 
  out at: (outY * outW) + outX put: outPix.
  inX := inX + xIncr].
  inY := inY + yIncr].
 
  interpreterProxy pop: 6.  "pop args, leave rcvr on stack"
  ^ 0
  !

Item was changed:
  ----- Method: ScratchPlugin>>primitiveSetUnicodePasteBuffer (in category 'os functions') -----
  primitiveSetUnicodePasteBuffer
  "Set the Mac OS X Unicode paste buffer."
 
  | utf16 strOop count |
  <export: true>
+ <var: 'utf16' declareC: 'short *utf16'>
- <var: 'utf16' declareC: 'short int *utf16'>
 
  strOop := interpreterProxy stackValue: 0.
 
+ interpreterProxy success: (interpreterProxy isBytes: strOop).
- ((interpreterProxy isIntegerObject: strOop) or:
- [(interpreterProxy isBytes: strOop) not]) ifTrue: [
- interpreterProxy success: false].
 
  interpreterProxy failed ifTrue: [^ 0].
 
+ utf16 := self cCoerce: (interpreterProxy firstIndexableField: strOop) to: #'short *'.
- utf16 := self cCoerce: (interpreterProxy firstIndexableField: strOop) to: 'short int *'.
  count := interpreterProxy stSizeOf: strOop.
 
+ self SetUnicodePaste: utf16 Buffer: count.
- self cCode: 'SetUnicodePasteBuffer(utf16, count)'.
 
  interpreterProxy pop: 1.  "pop arg, leave rcvr on stack"
+ ^ 0!
- ^ 0
-
- !

Item was changed:
  ----- Method: ScratchPlugin>>primitiveSetWindowTitle (in category 'os functions') -----
  primitiveSetWindowTitle
  "Set the title of the Scratch window."
 
  | titleStr src titleOop count |
  <export: true>
  <var: 'titleStr' declareC: 'char titleStr[1000]'>
+ <var: 'src' type: #'char *'>
- <var: 'src' declareC: 'char * src'>
 
  titleOop := interpreterProxy stackValue: 0.
 
+ interpreterProxy success: (interpreterProxy isBytes: titleOop).
- ((interpreterProxy isIntegerObject: titleOop) or:
- [(interpreterProxy isBytes: titleOop) not]) ifTrue: [
- interpreterProxy success: false].
 
  interpreterProxy failed ifTrue: [^ 0].
 
+ src := self cCoerce: (interpreterProxy firstIndexableField: titleOop) to: #'char *'.
- src := self cCoerce: (interpreterProxy firstIndexableField: titleOop) to: 'char *'.
  count := interpreterProxy stSizeOf: titleOop.
  count >= 1000 ifTrue: [interpreterProxy success: false. ^ 0].
  0 to: count - 1 do: [:i | titleStr at: i put: (src at: i)].
  titleStr at: count put: 0.
 
+ self SetScratchWindowTitle: titleStr.
- self cCode: 'SetScratchWindowTitle(titleStr)'.
 
  interpreterProxy pop: 1.  "pop arg, leave rcvr on stack"
+ ^ 0!
- ^ 0
-
- !

Item was changed:
  ----- Method: ScratchPlugin>>primitiveShortToLongPath (in category 'os functions') -----
  primitiveShortToLongPath
  "On Windows, convert a short file/path name into a long one. Fail on other platforms."
 
  | shortPath longPath ptr shortPathOop result count resultOop |
  <export: true>
  <var: 'shortPath' declareC: 'char shortPath[1000]'>
  <var: 'longPath' declareC: 'char longPath[1000]'>
+ <var: 'ptr' type: #'char *'>
- <var: 'ptr' declareC: 'char * ptr'>
 
  shortPathOop := interpreterProxy stackValue: 0.
 
+ (interpreterProxy isBytes: shortPathOop) ifFalse:
+ [interpreterProxy success: false. ^ 0].
- ((interpreterProxy isIntegerObject: shortPathOop) or:
- [(interpreterProxy isBytes: shortPathOop) not]) ifTrue: [
- interpreterProxy success: false. ^ 0].
 
+ ptr := self cCoerce: (interpreterProxy firstIndexableField: shortPathOop) to: #'char *'.
- ptr := self cCoerce: (interpreterProxy firstIndexableField: shortPathOop) to: 'char *'.
  count := interpreterProxy stSizeOf: shortPathOop.
  count >= 1000 ifTrue: [interpreterProxy success: false. ^ 0].
  0 to: count - 1 do: [:i | shortPath at: i put: (ptr at: i)].
  shortPath at: count put: 0.
 
  result := self cCode: 'WinShortToLongPath(shortPath, longPath, 1000)'.
  result = -1 ifTrue: [interpreterProxy success: false. ^ 0].
 
+ count := self strlen: longPath.
- count := self cCode: 'strlen(longPath)'.
  resultOop := interpreterProxy instantiateClass: interpreterProxy classString indexableSize: count.
+ ptr := self cCoerce: (interpreterProxy firstIndexableField: resultOop) to: #'char *'.
- ptr := self cCoerce: (interpreterProxy firstIndexableField: resultOop) to: 'char *'.
  0 to: count - 1 do: [:i | ptr at: i put: (longPath at: i)].
 
  interpreterProxy pop: 2 thenPush: resultOop.  "pop arg and rcvr, push result"
+ ^ 0!
- ^ 0
- !

Item was changed:
  ----- Method: ScratchPlugin>>primitiveWaterRipples1 (in category 'other filters') -----
  primitiveWaterRipples1
   
  | in out aArray bArray ripply temp pix dx dy dist inOop outOop width allPix aArOop bArOop height t1 blops x y power val val2 dx2 dy2 newLoc |
  <export: true>
  <var: 'in' declareC: 'unsigned int *in'>
  <var: 'out' declareC: 'unsigned int *out'>
  <var: 'aArray' declareC: 'double *aArray'>
  <var: 'bArray' declareC: 'double *bArray'>
  <var: 'ripply' declareC: 'int ripply'>
  <var: 'temp' declareC: 'double temp'>
  <var: 'pix' declareC: 'unsigned int pix'>
  <var: 'dist' declareC: 'double dist'>
  <var: 'dx2' declareC: 'double dx2'>
  <var: 'dy2' declareC: 'double dy2'>
 
  inOop := interpreterProxy stackValue: 5.
  outOop := interpreterProxy stackValue: 4.
  width := interpreterProxy stackIntegerValue: 3.
  in := self checkedUnsignedIntPtrOf: inOop.
  out := self checkedUnsignedIntPtrOf: outOop.
  allPix := interpreterProxy stSizeOf: inOop.
  ripply := interpreterProxy stackIntegerValue: 2.
  aArOop := interpreterProxy stackValue: 1.
  bArOop := interpreterProxy stackValue: 0.
  aArray := self checkedFloatPtrOf: aArOop.
  bArray := self checkedFloatPtrOf: bArOop.
  interpreterProxy success: ((interpreterProxy stSizeOf: outOop) = allPix).
  interpreterProxy failed ifTrue: [^ nil].
 
  height := allPix // width.
 
  t1 := self cCode: 'rand()'.
  blops := t1 \\ ripply -1.
  0 to: blops /2-1 do: [:t |
  t1 := self cCode: 'rand()'.
  x := t1 \\ width.
  t1 := self cCode: 'rand()'.
  y := t1 \\ height.
  t1 := self cCode: 'rand()'.
  power := t1 \\ 8.
  -4 to: 4 do: [:g |
  -4 to: 4 do: [:h |
  dist := ((g*g) + (h*h)) asFloat.
  ((dist < 25) and: [dist > 0]) ifTrue: [
  dx := (x + g) asInteger.
  dy := (y + h) asInteger.
  ((dx >0) and: [(dy>0) and: [(dy < height) and: [dx < width]]]) ifTrue: [
  aArray at: ((dy)*width + dx) put: (power *(1.0 asFloat -(dist/(25.0 asFloat))) asFloat).
  ].
  ].
  ].
  ].
  ].
 
  1 to: width -2 do: [:f |
  1 to: height -2 do: [:d |
  val := (d)*width + f.
  aArray at: val put: (((
  (bArray at: (val+1)) + (bArray at: (val-1)) + (bArray at: (val + width)) + (bArray at: (val - width)) +
  ((bArray at: (val -1 -width))/2) + ((bArray at: (val-1+width))/2) + ((bArray at: (val+1-width))/2) + ((bArray at: (val+1+width))/2)) /4) - (aArray at: (val))).
  aArray at: (val) put: ((aArray at: (val))*(0.9 asFloat)).
  ].
  ].
 
  "temp := bArray.
  bArray := aArray.
  aArray := temp."
  0 to: width*height do: [:q |
  temp := bArray at: q.
  bArray at: q put: (aArray at: q).
  aArray at: q put: temp.
  ].
 
  0 to: height-1 do: [:j |
  0 to: width-1 do: [:i |
  ((i > 1) and: [(i<(width-1)) and: [(j>1) and: [(j<(height-1))]]]) ifTrue: [
  val2 := (j)*width + i.
  dx2 := ((((aArray at: (val2)) - (aArray at: (val2-1))) + ((aArray at: (val2+1)) - (aArray at: (val2)))) *64) asFloat.
  dy2 := ((((aArray at: (val2)) - (aArray at: (val2-width))) + ((aArray at: (val2+width)) - (aArray at: (val2)))) /64) asFloat.
+ (dx2 < -2) ifTrue: [dx2 := -2].
+ (dx2 >  2) ifTrue: [dx2 :=  2].
+ (dy2 < -2) ifTrue: [dy2 := -2].
+ (dy2 >  2) ifTrue: [dy2 :=  2].
- (dx2<2) ifTrue: [dx2 := -2].
- (dx2>2) ifTrue: [dx2 := 2].
- (dy2<2) ifTrue: [dy2 := -2].
- (dy2>2) ifTrue: [dy2 := 2].
  newLoc := ((j+dy2)*width + (i+dx2)) asInteger.
  ((newLoc < (width*height)) and: [newLoc >=0]) ifTrue: [
  pix := in at: newLoc]
  ifFalse: [
  pix := in at: (i +(j*width)) ].
  ]
  ifFalse: [
  pix := in at: (i +(j*width)) ].
  out at: (i + (j*width)) put: pix.
  ]].
 
  interpreterProxy pop: 6.  "pop args, leave rcvr on stack"
  ^ 0
  !

Item was changed:
  ----- Method: VMMaker class>>versionString (in category 'version testing') -----
  versionString
 
  "VMMaker versionString"
 
+ ^'4.13.9'!
- ^'4.13.8'!