Short: PNG image datatype V45.27 Author: oliver@futaura.co.uk (Oliver Roberts) Uploader: oliver futaura co uk (Oliver Roberts) Type: util/dtype Version: 45.27 Requires: OS 3.0+,picture.datatype v43 Architecture: m68k-amigaos; ppc-amigaos; ppc-morphos; ppc-warpup Changes since previous Aminet release: - Updated with libpng 1.6.39 and zlib 1.2.13. 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 1.6.39 and zlib 1.2.13 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.