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[squeak-dev] Freetype bug on OSX

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Stephen Pair

[squeak-dev] Freetype bug on OSX

I'm hitting a failure in a BitBlt primitive when using GrafPort (part of Freetype). The stack details are below. It seems to happen after typing a character or two in the code pane of the class browser. Is this a known issue? Is there a simple fix?

- Stephen

12 April 2008 10:15:06 am

VM: Mac OS - a SmalltalkImage

Image: Squeak3.9 [latest update: #7067]

SecurityManager state:

Restricted: false

FileAccess: true

SocketAccess: true

Working Dir /Users/stephen/Squeak3.9-final-7067

Trusted Dir /foobar/tooBar/forSqueak/bogus

Untrusted Dir /Users/stephen/Library/Preferences/Squeak/Internet/My Squeak

GrafPort(Object)>>error:

Receiver: a GrafPort

Arguments and temporary variables:

aString: 'Error: a primitive has failed'

Receiver's instance variables:

destForm: DisplayScreen(1680x1050x32)

sourceForm: Form(11x1x32)

halftoneForm: nil

combinationRule: 41

destX: 797

destY: 434

width: 11

height: 1

sourceX: 0

sourceY: 0

clipX: 517

clipY: 363

clipWidth: 572

clipHeight: 189

colorMap: nil

alpha: nil

fillPattern: Color black

lastFont: FreeTypeFont('Verdana' 'Regular' 10)

lastFontForegroundColor: Color veryDarkGray

lastFontBackgroundColor: Color transparent

[] in WorldState>>displayWorldSafely: {[:err :rcvr | errCtx := thisContext. [errCtx := errCtx sender. [errCtx no...]}

Arguments and temporary variables:

aWorld: a PasteUpMorph(1622) [world]

err: 'Error: a primitive has failed'

rcvr: a GrafPort

errCtx: TextMorphForShout(TextMorph)>>drawOn:

errMorph: a TextMorphForShout(192)

BlockContext>>valueWithPossibleArgs:

Receiver: [] in WorldState>>displayWorldSafely: {[:err :rcvr | errCtx := thisContext. [errCtx := e...etc...

Arguments and temporary variables:

anArray: an Array('Error: a primitive has failed' a GrafPort)

Receiver's instance variables:

sender: BlockContext>>valueWithPossibleArgs:

pc: 121

stackp: 0

nargs: 2

startpc: 74

home: WorldState>>displayWorldSafely:

[] in BlockContext>>ifError: {[:ex | errorHandlerBlock valueWithPossibleArgs: {ex description. ex receiver}]}

Arguments and temporary variables:

errorHandlerBlock: [] in WorldState>>displayWorldSafely: {[:err :rcvr | errCtx...etc...

ex: Error: a primitive has failed

--- The full stack ---

GrafPort(Object)>>error:

[] in WorldState>>displayWorldSafely: {[:err :rcvr | errCtx := thisContext. [errCtx := errCtx sender. [errCtx no...]}

BlockContext>>valueWithPossibleArgs:

[] in BlockContext>>ifError: {[:ex | errorHandlerBlock valueWithPossibleArgs: {ex description. ex receiver}]}

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

BlockContext>>valueWithPossibleArgs:

[] in MethodContext(ContextPart)>>handleSignal: {[(self tempAt: 2) valueWithPossibleArgs: {exception}]}

BlockContext>>ensure:

MethodContext(ContextPart)>>handleSignal:

Error(Exception)>>signal

Error(Exception)>>signal:

GrafPort(Object)>>error:

GrafPort(Object)>>primitiveFailed

GrafPort(BitBlt)>>copyBitsColor:alpha:gammaTable:ungammaTable:

FreeTypeFont>>displayLineGlyphOn:from:to:

FreeTypeFont>>displayUnderlineOn:from:to:

LogicalFont>>displayUnderlineOn:from:to:

MultiDisplayScanner>>displayLine:offset:leftInRun:

MultiNewParagraph>>displayOn:using:at:

FormCanvas>>paragraph:bounds:color:

TextMorphForShout(TextMorph)>>drawOn:

FormCanvas(Canvas)>>draw:

FormCanvas(Canvas)>>drawMorph:

[] in TextMorphForShout(Morph)>>fullDrawOn: {[(aCanvas isVisible: self bounds) ifTrue: [aCanvas drawMorph: self]. self...]}

FormCanvas>>roundCornersOf:in:during:

FormCanvas(Canvas)>>roundCornersOf:during:

TextMorphForShout(Morph)>>fullDrawOn:

FormCanvas(Canvas)>>fullDraw:

FormCanvas(Canvas)>>fullDrawMorph:

[] in TransformMorph>>drawSubmorphsOn: {[:m | myCanvas fullDrawMorph: m]}

Array(SequenceableCollection)>>reverseDo:

[] in TransformMorph>>drawSubmorphsOn: {[:myCanvas | (self angle ~= 0.0 or: [self scale ~= 1.0]) ifTrue: [FreeT...]}

FormCanvas>>transformBy:clippingTo:during:smoothing:

TransformMorph>>drawSubmorphsOn:

[] in TransformMorph(Morph)>>fullDrawOn: {[(aCanvas isVisible: self bounds) ifTrue: [aCanvas drawMorph: self]. self...]}

FormCanvas>>roundCornersOf:in:during:

FormCanvas(Canvas)>>roundCornersOf:during:

TransformMorph(Morph)>>fullDrawOn:

FormCanvas(Canvas)>>fullDraw:

FormCanvas(Canvas)>>fullDrawMorph:

[] in PluggableShoutMorph(Morph)>>drawSubmorphsOn: {[:m | canvas fullDrawMorph: m]}

Array(SequenceableCollection)>>reverseDo:

[] in PluggableShoutMorph(Morph)>>drawSubmorphsOn: {[:canvas | submorphs reverseDo: [:m | canvas fullDrawMorph: m]]}

PluggableShoutMorph(Morph)>>drawSubmorphsOn:

...etc...

Andrew Tween

[squeak-dev] Re: Freetype bug on OSX

Hi,
>"Stephen Pair" <[hidden email]> wrote in message
>news:[hidden email]...
>I'm hitting a failure in a BitBlt primitive when using GrafPort (part of
>Freetype). The stack details are below. It seems to happen after typing a
>character or two in the code >pane of the class browser. Is this a known
>issue? Is there a simple fix?

The error occurs when displaying underlined or strikethrough text.

To fix it you need to install the modified bitblt plugin from here...
ftp://ftp.smalltalkconsulting.com/experimental/BitBltPlugin.v1.0.0b1.FreeTypePlus.bundle.zip

Cheers,
Andy

Stephen Pair

Re: [squeak-dev] Re: Freetype bug on OSX

On Sat, Apr 12, 2008 at 10:51 AM, Andrew Tween <[hidden email]> wrote:

Hi,

"Stephen Pair" <[hidden email]> wrote in message news:[hidden email]...

I'm hitting a failure in a BitBlt primitive when using GrafPort (part of Freetype). The stack details are below. It seems to happen after typing a character or two in the code >pane of the class browser. Is this a known issue? Is there a simple fix?

The error occurs when displaying underlined or strikethrough text.

To fix it you need to install the modified bitblt plugin from here...
ftp://ftp.smalltalkconsulting.com/experimental/BitBltPlugin.v1.0.0b1.FreeTypePlus.bundle.zip

Cheers,
Andy

Thanks!