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"
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COPYRIGHT (c) 1993 by Claus Gittinger
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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0
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ImageReader subclass:#FaceReader
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'Graphics-Images support'
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0
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!
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!FaceReader class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1993 by Claus Gittinger
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All Rights Reserved
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5
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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!
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version
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"
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99
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$Header: /cvs/stx/stx/libview2/FaceReader.st,v 1.12 1995-08-30 17:53:50 claus Exp $
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"
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!
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documentation
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"
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this class knows how to read face files.
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(this format is used for peoples faces - which can be optained from some
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ftp-servers, to improve mail- and/or newsreaders :-)
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"
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! !
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!FaceReader class methodsFor:'initialization'!
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initialize
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Image fileFormats at:'.face' put:self.
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! !
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!FaceReader methodsFor:'reading from file'!
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fromStream:aStream
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|line
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dstIndex "{ Class: SmallInteger }"
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bytesPerRow
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lo "{ Class: SmallInteger }"
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hi "{ Class: SmallInteger }"
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val "{ Class: SmallInteger }"
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inHeader s depth|
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inStream := aStream.
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line := aStream nextLine.
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line isNil ifTrue:[
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^ nil
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].
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inHeader := true.
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[inHeader] whileTrue:[
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(line startsWith:'Image:') ifTrue:[
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s := ReadStream on:line.
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s position:7.
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width := Number readFrom:s.
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height := Number readFrom:s.
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depth := Number readFrom:s.
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inHeader := false.
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].
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line := aStream nextLine
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].
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depth == 8 ifFalse:[
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self error:'only depth 8 supported'
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0
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].
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[line isEmpty] whileTrue:[
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line := aStream nextLine.
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0
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].
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bytesPerRow := width * depth // 8.
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((width * depth \\ 8) ~~ 0) ifTrue:[
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bytesPerRow := bytesPerRow + 1
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0
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].
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1
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data := ByteArray uninitializedNew:(bytesPerRow * height).
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dstIndex := data size.
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[line notNil] whileTrue:[
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1 to:(line size) by:2 do:[:cI |
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hi := (line at:cI) digitValue.
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lo := (line at:(cI + 1)) digitValue.
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val := (hi bitShift:4) bitOr:lo.
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data at:dstIndex put:val.
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dstIndex := dstIndex - 1
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].
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line := aStream nextLine
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0
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].
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photometric := #whiteIs0.
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samplesPerPixel := 1.
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bitsPerSample := #(8)
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"FaceReader fromFile:'../goodies/faces/next.com/steve.face'"
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"this is NOT steve jobs :-)"
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! !
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