This is the command grfcodec 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
GRFCodec — A tool to convert a GRF file into graphics files and meta data, and vice versa.
SYNOPSIS
grfcodec [-sv] [-d | -e] [options] GRF‐file [Directory]
<GRF‐File> denotes the .GRF file you want to work on, e.g. TRG1.GRF
<Directory> is where the individual sprites should be saved. If omitted, they will
default to a subdirectory called sprites/.
OPTIONS
-? Display the help message.
-e Encode a GRF file. The GRF‐file to pass is the file where to encode to. The
source of the GRF‐file, i.e. the .nfo, will be looked for in
sprites/GRF‐file.nfo. All graphics files will be searched for relative from the
location of the GRF‐file.
-d Decode a GRF file. The GRF‐file to pass is the file to decode. The result will
be in sprites/GRF‐file.nfo and sprites/GRF‐file.png.
-s Silences the progress output in interactive mode
-v Display the version.
Options for decoding:
-w num Write spritesheets files with the given width (default 800, minimum 16)
-h num Split spritesheets when they reach this height (default no limit, minimum 16)
-b num Organize sprites in boxes of this size (default 16)
-o ssf Sets the format of generated spritesheets. See -o ? for a list.
-p pal Use this palette instead of the default. See -p ? for a list.
-t Disable decoding of plain text characters as strings.
-x Disable production of unquoted escape sequences.
-xx Disable production of both quoted and unquoted escape sequences.
This has the side effect of producing a version 6 .nfo, instead of a version 7
.nfo.
-X List sprite numbers in the image file in hex.
Options for encoding:
-c Crop extraneous transparent blue from real sprites
-u Save uncompressed data (probably not a good idea)
-q Suppress warning messages
-g num Create a GRF file with the given container version. Valid versions are 1 and 2,
where the latter allows bigger sprites, larger sounds, and multiple zoom levels
and bit depths for the sprites.
-n Try both compression algorithms and use the most efficient. This might cause
trouble when loading the NewGRF in TTDPatch.
Options for both encoding and decoding:
-m num Apply colour translation to all sprites except character‐glyphs.
-M num Apply colour translation to all sprites.
If both of these are specified, only the last is obeyed. -m ? or -M ? for a
list of colour translations.
Use grfcodec online using onworks.net services
