Short:    JFIF-JPEG datatype V44.17 (68k,WarpOS,MorphOS)
Author:   oliver@futaura.co.uk (Oliver Roberts)
Uploader: oliver@futaura.co.uk (Oliver Roberts)
Version:  44.17
Type:     util/dtype
Requires: OS 3.0+,picture.datatype v43+
Replaces: util/dtype/WarpJPEG.dt.lha

Changes since previous release:

 - The dithering disabler feature (for when the OS3.5/3.9 picture.datatype
   is in use on hi/true colour displays) was flawed, since it only worked
   with images that were eventually attached to windows (e.g. Multiview).
   Now dithering will be disabled in all other cases too (e.g. Workbench /
   DOpus backdrops)


FEATURES

 - Supports regular JFIF files, and also many JPEG variant formats such
   as Exif, Adobe, Photoshop, Mavi, Windows, JCCK colorspace files and
   other less common formats

 - Supports both normal and progressive JPEG files

 - Highly optimized datatype dispatch engine, and fast JPEG decoder,
   resulting in a very efficient, compact and quick JPEG datatype

 - Asynchronous file i/o and double buffering techniques (WarpOS only),
   which speeds up image decoding
 
 - Optimized versions for 68020, 030, 040 and 060

 - Native PowerPC support for both WarpOS and MorphOS

 - Specific support for the OS 3.5/3.9 picture.datatype, when available
   (dithering is also automatically disabled for hi/true colour screens)


REQUIREMENTS

WarpJPEG is a JFIF/JPEG datatype which utilizes and requires the following:

 - Kickstart 3.0 or higher
 - picture.datatype v43 or higher
   (i.e. either of the ones supplied with AmigaOS 3.5/3.9, P96 or CGraphX)

 68k version

 - 68020 processor or higher (optimized versions included)

 WarpOS version

 - PPC accelerator card + 68040/060
 - WarpUp Release 4 (powerpc.library V15) or higher

 MorphOS version

 - PPC accelerator card
 - MorphOS beta release 1 or higher

Note that a graphics card is not necessary - the P96 or OS 3.5/3.9
picture.datatype will automatically dither images down to your display
requirements.


============================= Archive contents =============================

Original  Packed Ratio    Date     Time    Name
-------- ------- ----- --------- --------  -------------
    2802    1850 33.9% 15-Dec-99 16:37:44  WarpJPEGdt.info
   33536   19640 41.4% 19-Feb-01 11:30:32 +WarpJPEG.datatype.020
    1168     956 18.1% 19-Feb-01 11:30:34 +WarpJPEG.datatype.030.pch
    4280    3070 28.2% 19-Feb-01 11:30:36 +WarpJPEG.datatype.040.pch
    2708    2180 19.4% 19-Feb-01 11:30:36 +WarpJPEG.datatype.060.pch
   62496   26890 56.9% 19-Feb-01 11:28:28 +WarpJPEG.datatype.elf
   55088   25024 54.5% 19-Feb-01 11:27:08 +WarpJPEG.datatype.wos
     516     436 15.5% 02-Aug-00 17:31:42 +JPEG
    2519    1766 29.8% 15-Dec-99 14:24:28 +JPEG.info
    5960    1881 68.4% 11-Jan-01 15:22:12 +Install_WarpJPEG
    2026    1542 23.8% 02-Sep-00 00:37:36 +Install_WarpJPEG.info
   14636    9285 36.5% 16-May-96 12:42:42 +spatch
   21830    8228 62.3% 19-Feb-01 10:52:16 +WarpJPEG.guide
    2924    2308 21.0% 15-Dec-99 16:37:44 +WarpJPEG.guide.info
-------- ------- ----- --------- --------
  212489  105056 50.5% 22-Feb-101 00:43:00   14 files