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Warppngdt | | Description: | PNG image datatype V45.22 | | Download: | warppngdt.lha (TIPS: Use the right click menu if your browser takes you back here all the time) | | Size: | 180kb | | Version: | 45.22 | | Date: | 29 Apr 2020 | | Author: | oliver@futaura.co.uk (Oliver Roberts) | | Submitter: | uploader | | Homepage: | http://www.warpdt.co.uk/ | | Category: | datatype/image | | Replaces: | datatype/image/warppngdt.lha | | License: | Other | | Distribute: | yes | | Min OS Version: | 4.0 | | FileID: | 11260 | | | | | Comments: | 1 | | Snapshots: | 0 | | Videos: | 0 | | Downloads: | 67 (Current version) | | 686 (Accumulated) | | Votes: | 1 (0/0) (30 days/7 days) | |
      Changes since previous Aminet release:
- Updated with libpng 1.6.37.
- Minor optimizations and cleanups.
- MorphOS and WarpOS versions recompiled with VBCC 0.9g.
- OS4 version recompiled with GCC 8.1.0.
- All benchmarks recomputed after the repair of my A1200, with
SCSI2SD replacing my SCSI HDD and disabling all debug tools.
- Added new set of benchmarks for OS4.
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:
- 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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