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util/dtype/JFIFdt44.lha

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Short:JFIF (JPEG) picture datatype 44.10
Author:gni at gecko.de (Gunther Nikl), Henryk Richter
Uploader:henryk richter gmx net (Henryk Richter)
Type:util/dtype
Version:44.10
Architecture:m68k-amigaos >= 3.0.0
Distribution:NoCD
Date:2019-12-08
Download:http://aminet.net/util/dtype/JFIFdt44.lha - View contents
Readme:http://aminet.net/util/dtype/JFIFdt44.readme
Downloads:684
This release of JFIFdt incorporates improvements to the datatype
dispatch code alongside with an updated jpeg library. Assembly level
optimization has been done in order to improve runtime performance
considerably. 

The datatype is an all-in-one binary for any 68020+ Amiga.
A 68000 version (without assembly optimizations) is provided as well.

Changes in this release

 - fixed memory free calls within active memory pools (no actual
   leaks but complaints by MuGuardianAngel)
 - support for XMP JFIF files

Feature overview

 - supports normal and progressive JFIFs with all its flavours
 - supports HAM output (HAM6 as well as HAM8)
 - switches to V43 mode if a picture.datatype V43 or newer is found
 - asynchronous file I/O to speedup image loading and decoding
 - utilizes WritePixelLine8() for chunky-to-planar in V42 mode
 - automatic colour quantizing of true-colour data for V42
 - can be configured to suit personal preferences
 - OS 3.5+ support (minimum OS3.0)
 - FBlit support
 - based on libjpeg-turbo
 - ASM optimizations to Huffman decoding, iDCT and color 
   transform (68020+)
 - AMMX optimization for Apollo Core Gold 2.7 and later
 - FPU and AMMX availability is checked before use at runtime
 - all-in-one binary for 68020+


Contents of util/dtype/JFIFdt44.lha
 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[Amiga]                   1256    2432  51.6% -lh5- 03da Dec  8 10:58 jfifdt44.10/Changes.readme
[Amiga]                  43644   80912  53.9% -lh5- 078a Dec  2 20:18 jfifdt44.10/Classes/Datatypes-68000/jfif.datatype
[Amiga]                  44239   78196  56.6% -lh5- dd3c Dec  2 20:18 jfifdt44.10/Classes/Datatypes/jfif.datatype
[Amiga]                    245     282  86.9% -lh5- 2ab8 Dec  2 20:17 jfifdt44.10/Devs/Datatypes/JFIF
[Amiga]                   1978    2279  86.8% -lh5- aa94 Dec  2 20:17 jfifdt44.10/Devs/Datatypes/JFIF.info
[Amiga]                   6862   16282  42.1% -lh5- 6e56 Dec  8 11:00 jfifdt44.10/JFIFdt.guide
[Amiga]                   1887    2299  82.1% -lh5- 8ebf Dec  2 20:17 jfifdt44.10/JFIFdt.guide.info
[Amiga]                    858    1512  56.7% -lh5- ef2c Dec  8 11:41 jfifdt44.10/JFIFdt44.readme
[Amiga]                 707097  707097 100.0% -lh0- 058d Dec  8 11:38 jfifdt44.10/Source.zip
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         9 files  808066  891291  90.7%            Dec  8 16:39

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