factor/basis/images/loader/loader.factor

! Copyright (C) 2009 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: constructors kernel splitting unicode.case combinators
accessors images.bitmap images.tiff images io.backend
io.pathnames ;
IN: images.loader

ERROR: unknown-image-extension extension ;

: image-class ( path -- class )
    file-extension >lower {
        { "bmp" [ bitmap-image ] }
        { "tif" [ tiff-image ] }
        { "tiff" [ tiff-image ] }
        [ unknown-image-extension ]
    } case ;

: load-image ( path -- image )
    dup image-class new load-image* normalize-image ;