Short:    TIFF datatype V44.5 (68k,WarpOS,MorphOS)
Author:   oliver@futaura.co.uk (Oliver Roberts)
Uploader: oliver@futaura.co.uk (Oliver Roberts)
Version:  44.5
Type:     util/dtype
Requires: OS 3.0+,picture.datatype v43+

Changes since previous release:

 - Raised minimum WarpUp requirements from V4 to V5, due to cache flush
   bugs in V4 which cause images to be displayed incorrectly (black
   stripes, corrupt images or completely black images).  These bugs
   affected v44.4.  WarpUp V5 does not have these problems.
 - Cleaned up the WarpOS version, fixing some potential problems that
   could happen when an error occurred.
 - The installer now allows the destination of datatype files to be
   changed.


FEATURES

 - Supports 5.0 and 6.0 TIFF spec, including Packbits, Thunderscan,
   CCITT (fax), Pixar, LogLuv (CIE and SGILog) and Deflate (zip)
   encodings, and uncompressed files.  LZW and JPEG encodings are
   currently unsupported

 - Image types supported include RGB (24-bit and 48-bit), palette based
   and greyscale (1-bit, 4-bit, 8-bit and 16-bit)

 - Supports image data organized as strips, tiles or separate components

 - For multi-image files, applications may choose which picture to decode

 - Scaling options for high resolution fax images

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

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

 - PowerPC support with native WarpOS and native MorphOS versions

 - Alter the pen allocation precision when images are remapped to an
   8-bit display

 - Specific support for the OS 3.5/3.9 picture.datatype, when available

 - The dithering feature of the OS 3.5/3.9 picture.datatype can be
   configured to your liking (e.g. disabled for 15/16-bit displays)

 - Based on libtiff 3.5.6-beta and zlib 1.1.3


REQUIREMENTS

WarpTIFF is a TIFF 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 5.0 or higher

 MorphOS version

 - PPC accelerator card
 - MorphOS beta release 1 or higher

Note that a graphics card is not necessary.


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

Original  Packed Ratio    Date     Time    Name
-------- ------- ----- --------- --------  -------------
    3144    2408 23.4% 07-Mar-01 16:14:10  WarpTIFFdt.info
  149740   41408 72.3% 19-Oct-01 15:08:24 +WarpTIFF.datatype.020
     156     133 14.7% 19-Oct-01 15:08:26 +WarpTIFF.datatype.030.pch
   14596    9101 37.6% 19-Oct-01 15:08:34 +WarpTIFF.datatype.040.pch
   17740   10857 38.7% 19-Oct-01 15:08:40 +WarpTIFF.datatype.060.pch
  246696   63796 74.1% 19-Oct-01 15:02:18 +WarpTIFF.datatype.elf
  214536   54688 74.5% 19-Oct-01 15:00:50 +WarpTIFF.datatype.wos
     310     267 13.8% 31-Jul-01 15:46:52 +TIFF
    2519    1769 29.7% 31-Jul-01 15:47:10 +TIFF.info
   13327    4110 69.1% 19-Oct-01 17:03:24 +Install_WarpTIFF
    2026    1539 24.0% 27-Jul-01 16:45:12 +Install_WarpTIFF.info
   14636    9285 36.5% 16-May-96 12:42:42 +spatch
   26405    9837 62.7% 19-Oct-01 18:03:02 +WarpTIFF.guide
    2924    2310 20.9% 27-Jul-01 16:48:40 +WarpTIFF.guide.info
-------- ------- ----- --------- --------
  708755  211508 70.1% 24-Oct-101 02:28:20   14 files