   EXTRACT EXTENTION   V. 1.0



UNPACK DIFFERENT PICTURE FORMAT BY GNTER FELDMANN (C ) 1992

THIS EXTENTION IS A JOIN FROM THE GEM-IMG EXTENTION AND THE DEGAS EXTENTION  V 1.0


INSTALATION :

MOVE THE "EXTRACT.EXK" INTO YOUR STOS FOLDER AND THE COMPILER FEIL
"ETRACT.ECK" INTO THE COMPILER FOLDER.


COMMAND LISTING :

IMG EXTRACT
X = IMG COMPRESS
ELITE EXTRACT

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UNPACK AND PACK FROM IMG FORMAT

        IMG EXTRACT SOURCEADR, DESTANATIONADR, BREADTH, HEIGHT

THIS COMMAND UNPACK ONE ON THE SOURCE ADRESS LOAD IMG PICTURE ON THE DESTANATION ADRESS. BREADTH AND HEIGHT GIVE THE WISH PICTURE SIZE INTO PIXEL.
TO YOU WAND UNPACK THE OVERALL PICTURE, GIVE ON SOURCE ADR AND DESTANATION ADR. AS WELL OVERALL BREADTH AND HEIGHT YOU FOUND THE EXTENT IN THE IMG-HEADER : BREADTH INTO THE 7 WORD AND HEIGHT INTO 8 WORD FROM THE HEADER.
YOU CAN UNPACK PICTURE TILL 4 BITPLANES.


X = IMG COMPRESS ( SOURCE ADR, DETAIL BREADTH, PICTURE BREADTH,
                   PICTURE HEIGHT, IMG-END ADR )


z.B.
      x=IMG COMPRESS(START(10),640,640,400,START(11)+LENGHT(11))
               (PACK FROM A MONOCHROM SCREENS)
      x=IMG COMPRESS(START(10)+180,320,200,START(11)+LENGTH(11))
               (PACK FROM A MONOCHROM DETAIL160,2 to 480,202)
      x=IMG COMPRESS(START(10),320,320,200,START(11)+LENGTH(11))
               (PACK FROM A  LOW-RESOLUTION-PICTURE)
               u.s.w.

     SAVE THE EXAMPLE: BSAVE "NAME.IMG",x to START(11)+LENGTH(11)

 UNPACK FROM A DEGA ( ELITE ) PICTURE  PC? FORMAT

ELITE EXTRACT  SOURCE ADR, DESTINATION ADR

THIS COMMAND UNPACK ONE ON SOURCE ADR LOAD, PACK DEGAS PICTURE AT DESTANATION ADR AND ISCONTIUNE THE COLOUR PALETTE




             TRANSLATION FROM GERMAN DOCUMENT INTO ENGLISH

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