Short:        TIFF datatype V45.5 (68k,OS4,WarpOS,MorphOS)
Author:       oliver@futaura.co.uk (Oliver Roberts)
Uploader:     oliver futaura co uk (Oliver Roberts)
Type:         util/dtype
Version:      45.5
Requires:     OS 3.0+,picture.datatype v43+
Architecture: m68k-amigaos; ppc-warpup; ppc-morphos

Changes since previous Aminet release:

 - Added native AmigaOS 4 version.
 - Enabled LZW decoding support.
 - Added support for CIELab colourspace images.
 - Improved YCbCr colour conversion support.
 - Updated to libtiff 3.6.1.
 - Updated to zlib 1.2.1.
 - Added Polish installer translation.


FEATURES

 - Supports 5.0 and 6.0 TIFF spec, including Packbits, Thunderscan,
   CCITT (fax), Pixar, LogLuv (CIE and SGILog), LZW, Deflate (zip) and
   JPEG compression schemes (old and new), plus uncompressed files.

 - Image types supported include RGB (24-bit and 48-bit), palette based
   greyscale (1-bit, 2-bit, 4-bit, 8-bit and 16-bit), CMYK (32-bit and
   64-bit) and YCbCr

 - Can also handle Xerox image files (XIF), as used by Pagis Pro

 - 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 OS4, WarpOS and MorphOS versions

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

 - Specific support for the AmigaOS picture.datatype v44+, when available

 - The dithering feature of the AmigaOS picture.datatype v44+ can be
   configured to your liking (e.g. disabled for 15/16-bit displays)

 - Based on libtiff 3.6.1 and zlib 1.2.1


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+, 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

 OS4 version

 - PPC accelerator card / AmigaOne
 - AmigaOS 4.0 pre-release or newer

 MorphOS version

 - PPC accelerator card / Pegasos
 - MorphOS beta release 1 or higher