Short: AkLJPG-dt V43.75 (LJPG, 68000-060) Author: Andreas_Kleinert@t-online.de Uploader: Andreas_Kleinert@t-online.de Type: util/dtype (68000, 020/030, 040 and 060 versions inside) ***************** NEWS FLASH ***************** V43.75 (27.05.97) : - HAM indicator seems to have been broken since some releases (viewmode field, HAM_KEY) - added new viewmode generation routine, expecial for HAM modes, which takes care of AGA HAM capabilities and PAL/NTSC - added correct viewmode generation for all other modes, too - aspect ratio fields of BitMapHeader structure now are filled according the selected viewmode - added new akT V43.70 (-> Roger Hâgensen) ***************** NEWS FLASH ***************** akLJPG.datatype - licenseable FREEWARE - © 1997 by Andreas Ralph Kleinert. All rights reserved. (see also additional copyright notices inside the archive) A PerSuaSiVe SoftWorX PRODUCT. Needs Kickstart V3.x Program information ------------------- akLJPG.datatype is a new JPEG datatype, which is based on the Lossless JPEG Codec V1.0 - which is a lossless JPEG format not directly related to the JFIF JPEG file format. It supports reading of LJPG graphics files. LJPG is a freely distributable lossless JPEG image compression package. There's a port of the encoding program "pnmtoljpg" available on Aminet as gfx/pbm/pnmtoljpg.lha, which compresses a Portable Pixmap (PPM, PNM-P6) or Portable Graymap image (PGM, PNM-P5) to a lossles JPEG (LJPG) image using the JPEG standard (DIS) lossless mode of operation. This datatype decodes a ljpg image to either 24 Bit RGB or 256 grayscales depending on the number of color components stored in the LJPG image file. With V39-V42 picture.datatype it either produces (upto) 256 color palette-based or HAM6/8 output (256 colors exported unmodified, 24 Bit data either dithered or converted to HAM6/HAM8) with Ralph Schmidt's picture.datatype V43 24 Bit may be done unmodified (the same applies to Picasso96's picture.datatype V43). You must use the included preferences program for best configuration. See program archive for copyright and distribution information. ============================= Archive contents ============================= Original Packed Ratio Date Time Name -------- ------- ----- --------- -------- ------------- 4924 2635 46.4% 23-May-97 11:26:28 +akT 990 511 48.3% 23-May-97 11:26:28 +akt.txt 36236 17887 50.6% 27-May-97 19:40:28 +akLJPG.datatype 36240 17882 50.6% 27-May-97 19:40:36 +akLJPG.datatype.030 36228 17878 50.6% 27-May-97 19:40:48 +akLJPG.datatype.040 36236 17887 50.6% 27-May-97 19:40:56 +akLJPG.datatype.060 88 82 6.8% 25-Mar-97 14:17:42 +LJPG 467 281 39.8% 25-Mar-97 14:17:42 +LJPG.info 19566 7451 61.9% 27-May-97 19:41:38 +akLJPG.guide 12315 4436 63.9% 27-May-97 19:42:26 +Commercial_1 2608 866 66.7% 25-Mar-97 15:48:40 +Install 3234 497 84.6% 25-Mar-97 15:48:18 +Install.info 624 238 61.8% 25-Mar-97 15:47:30 +Datatypes.info 3252 517 84.1% 25-Mar-97 15:47:30 +akLJPG.info 22464 9371 58.2% 27-May-97 19:40:56 +akLJPGPrefs 624 238 61.8% 25-Mar-97 16:30:22 akLJPG-Datatype.info -------- ------- ----- --------- -------- 216096 98657 54.3% 28-May-97 02:01:48 16 files