  | 80046 packages online |
|
 |
| | | | | No screenshot available |
|
IFF-RGFX: An extended graphics file format for
Win/AOS/MOS/AROS - opt. using libzip
Author: Andreas R. Kleinert
Date: V1.0 16 Nov 1997 (16.11.1997)
V1.1 26 Nov 1997 (26.11.1997)
V1.2 07 Dec 1997 (07.12.1997)
V2.0 28 Aug 2004 (28.08.2004)
V3.0 31 Jan 2006 (31.01.2006)
V3.1 01 Feb 2007 (01.02.2006)
V3.2 17 Apr 2007 (17.04.2007)
V3.3 03 Feb 2008 (03.02.2008)
V3.4 28 Mar 2009 (28.03.2009)
V3.5 07 Jan 2010 (07.01.2010)
V3.6 17 Jan 2010 (17.01.2010)
Contact: Andreas Kleinert <info ar-kleinert.de>
Credits: Peter Bornhall, Marcel Offermans, Achim Stegemann
Abstract:
RGFX currently supports compressed and uncompressed:
- planar graphics ( <= 8 Bit)
- chunky graphics ( <= 8 Bit)
- 15 Bit graphics as RGB ( 3x 5 Bit)
- 16 Bit graphics as ARGB (1 + 3x 5 Bit)
- 24 Bit graphics as RGB triples ( 3x 8 Bit)
- 32 Bit graphics as ARGB quadruples (8 + 3x 8 Bit)
- 48 Bit graphics as RGB triples ( 3x 16 Bit)
- 64 Bit graphics as ARGB quadruples (16 + 3x 16 Bit)
With optional PNG-style alpha channel for each
24/48 bit pixel or a single transparent color
for colormapped images (upto 8 bit).
Typical structure of a RGFX file (recommended):
FORM-RGFX
RGHD image header
RSCM viemode information
RDIP DIPF information
RCOL color and transparency information
RFLG optional; further flags
NAME optional
AUTH optional
ANNO optional
Copy optional
EXIF optional; see IFF-META spec
IPTC optional; see IFF-META spec
XMP0 optional; see IFF-META spec
XMP1 optional; see IFF-META spec
ICCP optional; see IFF-META spec
ICCN optional; see IFF-META spec
GAMA optional; see IFF-META/ILBM64 spec
CHRM optional; see IFF-META/ILBM64 spec
SRGB optional; see IFF-META/ILBM64 spec
RBOD the graphics itself
All additional (optional) chunks should appear
somewhere between RCOL and RBOD.
Please refer to rgfx.h for the chunk specifications
and permitted standard chunks as far as not specified
elsewhere.
A few optional third party RGFX chunks are also discussed.
These are not part of the format specification and
should be considered private, proprietary extensions.
|
Contents of dev/misc/IFF-RGFX.lha PERMSSN UID GID PACKED SIZE RATIO METHOD CRC STAMP NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic] 977 2301 42.5% -lh5- 60c3 Mar 28 2009 IFF-RGFX/IFF-RGFX.readme
[generic] 1095 2419 45.3% -lh5- 7b2e Mar 28 2009 IFF-RGFX/RGFX-Chunks.txt
[generic] 1559 3436 45.4% -lh5- cb42 Mar 28 2009 IFF-RGFX/RGFX-Remarks.txt
[generic] 4164 13290 31.3% -lh5- e72f Mar 28 2009 IFF-RGFX/rgfx.h
---------- ----------- ------- ------- ------ ---------- ------------ -------------
Total 4 files 7795 21446 36.3% Mar 28 2009
|
|
|
 |
Aminet © 1992-2012 Urban
Müller and
the Aminet team.
Aminet contact address: <aminet aminet net> |