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Changes since previous release: - Can now load image files conforming to the BigTIFF specification. - Added JPEG AltiVec speed optimizations for the OS4 and MorphOS versions making decoding speed of baseline images 1.5x faster on a G4 and 1.9x faster on a PA6T, with fancy upsampling off, on average. These optimizations can be toggled off/on using the new USE_ALTIVEC setting. - JPEG Huffman decoder in PowerPC versions is now 5-10% faster. - Applications may now configure the datatype settings via a local variable, overriding any global user settings present in ENV:. - Replaced usage of old Exec and Dos OS4 functions with the new ones. - Updated with libtiff 4.0.6, zlib 1.2.8 and jpeglib 9b. - OS4 version and MorphOS AltiVec code recompiled with GCC 5.2.0. - MorphOS and WarpOS versions recompiled with VBCC 0.9d. v45.8 - Can now decode images that use the JBIG compression scheme. - Added support for images that use 32 bits per sample. - Fixed decoding of 64-bit CMYK images. - Fixed decoding of planar RGB/CMYK images. - Fixed decoding of XIF images and old JPEG compressed files which got broken in 45.7. - Rewrote the XIF image support to work with the latest libtiff. - Enabled recognition of Microsoft Document Imaging TIFF files. - Updated with libtiff 3.9.4, zlib 1.2.5 and jpeglib 8c. - Added workaround for a bug in OS4 which can cause a crash when a requester is opened (bug fixed in intuition.library 53.32). - Fixed (VBCC fix) potential system lockup when calling the GM_RENDER method in the WarpOS version (e.g. when using Multiview with the AfA OS picture.datatype). - Added workaround for a bug in OS4's datatypes.library DTST_MEMORY handling. - Enabled virtual memory usage in OS4 version. - MorphOS and WarpOS versions recompiled with VBCC 0.9a. - OS4 version recompiled with latest SDK. - Added AmiUpdate support. - Updated Spanish installer strings. v45.7 - Updated to libtiff 3.8.2 and zlib 1.2.3. - WarpOS and 68k versions upto 30% faster and 60% faster for MorphOS. - Fixed crash and memory trashing problem when decoding fax images. - Fixed cases where fax images were decoded as negative images. - Fixed bugs in the CMYK to RGB conversion. - Fixed broken 8-bit greyscale image decoding in the MorphOS version. - Asynchronous i/o now uses dos/SendPkt instead of exec/PutMsg. - Overhauled IEEE math lib usage in the 68k versions, fixing problems with precision in the 020/030 versions and removing the restriction of only being able to decode one image at a time. - Updated with the latest WarpDT engine build. - MorphOS and WarpOS versions recompiled with VBCC 0.8j. v45.6 - Fixed a bug that could cause YCbCr colour based images to be corrupted during conversion to RGB. - Updated to libtiff 3.7.1. - MorphOS and WarpOS versions recompiled with VBCC 0.8g. - Updated French installer. FEATURES - Supports 5.0 and 6.0 TIFF and BigTIFF specification files, including those using Packbits, Thunderscan, CCITT (fax), Pixar, LogLuv (CIE and SGILog), LZW, Deflate (zip), JBIG and JPEG (old and new) compression schemes, plus uncompressed files - Image types supported include RGB (24-bit, 48-bit and 96-bit), palette based / greyscale (1-bit, 2-bit, 4-bit, 8-bit, 16-bit and 32-bit), CMYK (32-bit, 64-bit and 128-bit), YCbCr and CIELab - Can handle Xerox / ScanSoft Pagis XIF files (eXtended Image Format) - 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 - AltiVec speed optimizations (JPEG decompression) for OS4 and MorphOS - 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 4.0.6, zlib 1.2.8, jpeglib 9b/6b and libjpeg-turbo 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 / 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.
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