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util/dtype/WarpPNGdt.lha

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Showing:m68k-amigaosppc-amigaosppc-morphosi386-arosi386-amithlonppc-warpupppc-powerupgeneric
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Short:PNG image datatype V45.24
Author:oliver at futaura.co.uk (Oliver Roberts)
Uploader:oliver futaura co uk (Oliver Roberts)
Type:util/dtype
Version:45.24
Requires:OS 3.0+,picture.datatype v43
Architecture:m68k-amigaos; ppc-amigaos; ppc-morphos; ppc-warpup
Date:2021-10-20
Download:http://aminet.net/util/dtype/WarpPNGdt.lha - View contents
Readme:http://aminet.net/util/dtype/WarpPNGdt.readme
Downloads:8060

Changes since previous Aminet release:

 - When the OS3.2 V47 picture.datatype is in use, decoding speed will
   now be 5-10% faster for both 68k and WarpOS.
 - When the OS4 V54 picture.datatype is in use, decoding speed will
   now be 5-10% faster and up to 25% faster for interlaced images.
 - Significantly reduced memory usage when decoding interlaced
   images, if using the OS3.2 V47 or OS4 V54 picture.datatype.
 - Benchmarks now performed using PicDTBench.


FEATURES

 - Supports both normal and interlaced PNG files

 - Gamma correction options allow the output image to be changed to
   suit your monitor/environment

 - Alpha channel handling can be configured to output RGBA bitmaps, or
   RGB bitmaps either by combining the alpha information internally
   using a configurable background colour or simply stripping it

 - Highly optimized datatype dispatch engine, and fast PNG decoder,
   resulting in a very efficient, compact and quick PNG 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 libpng 1.6.37 and zlib 1.2.11


REQUIREMENTS

WarpPNG is a PNG datatype which utilizes and requires the following:

 68k version

 - Kickstart 3.0 or higher
 - 68020 processor or higher (optimized versions included)
 - picture.datatype v43 or higher
   (supplied with AmigaOS 3.1.4, 3.2, 3.5, 3.9, CyberGraphX, P96 or AfA OS)

 WarpOS version

 - Kickstart 3.0 or higher
 - PPC accelerator card + 68040/060
 - WarpUp Release 5.0 or higher
 - picture.datatype v43 or higher
   (supplied with AmigaOS 3.1.4, 3.2, 3.5, 3.9, CyberGraphX, P96 or AfA OS)

 OS4 version

 - PPC accelerator card / AmigaOne / SAM
 - AmigaOS 4.0 or higher

 MorphOS version

 - PPC accelerator card / Pegasos / Efika
 - MorphOS 1.4 or higher

Note that a graphics card is not necessary.


Contents of util/dtype/WarpPNGdt.lha
PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[unknown]                25676   41652  61.6% -lh5- d8b0 Oct 17 16:34 WarpPNGdt/Classes/Datatypes/WarpPNG.datatype.020
[unknown]                  126     140  90.0% -lh5- 3a04 Oct 17 17:27 WarpPNGdt/Classes/Datatypes/WarpPNG.datatype.030.pch
[unknown]                 3541    4808  73.6% -lh5- 85d0 Oct 17 17:27 WarpPNGdt/Classes/Datatypes/WarpPNG.datatype.040.pch
[unknown]                 6219    8560  72.7% -lh5- cebd Oct 17 17:27 WarpPNGdt/Classes/Datatypes/WarpPNG.datatype.060.pch
[unknown]                17406   33072  52.6% -lh5- 0cfd Oct 17 17:27 WarpPNGdt/Classes/Datatypes/WarpPNG.datatype.mos.pch
[unknown]                35632   66368  53.7% -lh5- b4ab Oct 17 17:26 WarpPNGdt/Classes/Datatypes/WarpPNG.datatype.os4
[unknown]                35794   66880  53.5% -lh5- 718b Oct 17 17:26 WarpPNGdt/Classes/Datatypes/WarpPNG.datatype.wos
[unknown]                  121     134  90.3% -lh5- 6b72 Oct 17 17:27 WarpPNGdt/Devs/Datatypes/PNG
[unknown]                 1767    2519  70.1% -lh5- 1f25 Jan  3  2000 WarpPNGdt/Devs/Datatypes/PNG.info
[unknown]                 5922   18314  32.3% -lh5- ec2c Oct 17 15:36 WarpPNGdt/Install_WarpPNG
[unknown]                 1540    2025  76.0% -lh5- 001b Jan  3  2000 WarpPNGdt/Install_WarpPNG.info
[unknown]                 9285   14636  63.4% -lh5- e89d May 16  1996 WarpPNGdt/spatch
[unknown]                14641   41584  35.2% -lh5- dfa7 Oct 20 18:56 WarpPNGdt/WarpPNG.guide
[unknown]                 2308    2924  78.9% -lh5- 9746 Dec 15  1999 WarpPNGdt/WarpPNG.guide.info
[unknown]                 2406    3144  76.5% -lh5- 330f Mar  7  2001 WarpPNGdt.info
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total        15 files  162384  306760  52.9%            Oct 21 01:34

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