This is the command ppmtoilbm that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
ppmtoilbm - convert a portable pixmap into an ILBM file
SYNOPSIS
ppmtoilbm [-maxplanes|-mp N] [-fixplanes|-fp N] [-ham6|-ham8] [-dcbits|-dcplanesrgb]
[-normal|-hamif|-hamforce|-24if|-24force| -dcif|-dcforce|-cmaponly] [-ecs|-aga]
[-compress|-nocompress] [-cmethod type] [-mapppmfile] [-savemem] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces an ILBM file as output. Supported ILBM types
are:
Normal ILBMs with 1-16 planes.
Amiga HAM with 3-16 planes.
24 bit.
Color map (BMHD + CMAP chunk only, nPlanes = 0).
Unofficial direct color.
1-16 planes for each color component.
Chunks written:
BMHD, CMAP, CAMG (only for HAM), BODY (not for colormap files) unofficial DCOL
chunk for direct color ILBM
OPTIONS
Options marked with (*) can be prefixed with a "no", e.g. "-nohamif". All options can be
abbreviated to their shortest unique prefix.
-maxplanes | -mp n
(default 5, minimum 1, maximum 16) Maximum planes to write in a normal ILBM. If
the pixmap does not fit into <n> planes, ppmtoilbm writes a HAM file (if -hamif is
used), a 24bit file (if -24if is used) or a direct color file (if -dcif is used) or
aborts with an error.
-fixplanes | -fp n
(min 1, max 16) If a normal ILBM is written, it will have exactly <n> planes.
-hambits | -hamplanes n
(default 6, min 3, max 16) Select number of planes for HAM picture. The current
Amiga hardware supports 6 and 8 planes, so for now you should only use this values.
-normal (default)
Turns off -hamif/-24if/-dcif, -hamforce/-24force/-dcforce and -cmaponly. Also sets
compression type to byterun1.
-hamif (*)
-24if (*)
-dcif (*)
Write a HAM/24bit/direct color file if the pixmap does not fit into <maxplanes>
planes.
-hamforce (*)
-24force (*)
-dcforce (*)
Write a HAM/24bit/direct color file.
-dcbits | -dcplanes r g b
(default 5, min 1, max 16). Select number of bits for red, green & blue in a
direct color ILBM.
-ecs (default)
Shortcut for: -hamplanes 6 -maxplanes 5
-aga
Shortcut for: -hamplanes 8 -maxplanes 8
-ham6
Shortcut for: -hamplanes 6 -hamforce
-ham8 Shortcut for: -hamplanes 8 -hamforce
-compress (*) (default)
-cmethod none|byterun1
Compress the BODY chunk. The default compression method is byterun1. Compression
requires building the ILBM image in memory; turning compression off allows stream-
writing of the image, but the resulting file will usually be 30% to 50% larger.
Another alternative is the -savemem option, this will keep memory requirements for
compression at a minimum, but is very slow.
-map ppmfile
Write a normal ILBM using the colors in <ppmfile> as the colormap. The colormap
file also determines the number of planes, a -maxplanes or -fixplanes option is
ignored.
-cmaponly
Write a colormap file: only BMHD and CMAP chunks, no BODY chunk, nPlanes = 0.
-savemem
See the -compress option.
Use ppmtoilbm online using onworks.net services
