Perlbal::Plugin::Palimg(3p)

NAME
Perlbal::Plugin::Palimg - plugin that allows Perlbal to serve palette altered images

VERSION
This documentation refers to "Perlbal::Plugin::Palimg" that ships with Perlbal 1.50

DESCRIPTION
Palimg is a perlbal plugin that allows you to modify "GIF" and "PNG" on the fly. Put the images you want to be able to modify into the "DOCROOT/palimg/" directory. You modify them by adding "/pSPEC" to the end of the url, where SPEC is one of the below defined commands (gradient, tint, etc).

CONFIGURING PERLBAL
To configure your Perlbal installation to use Palimg you'll need to "LOAD" the plugin then add a service parameter to a "web_server" service to activate it.

Example "perlbal.conf":

    LOAD palimg

    CREATE SERVICE palex
       SET listen         = ${ip:eth0}:80
       SET role           = web_server
       SET plugins        = palimg
       SET docroot        = /usr/share/doc/
       SET dirindexing    = 0
    ENABLE palex

GRADIENTS
You can change the gradient of the image by adding "/pg0011111164ffffff" to the end of the url. 00 is the index where the gradient starts and 111111 is the color (in hex) of the beginning of the gradient. 64 is the index of the end of the gradient and "ffffff" is the color of the end of the gradient. Note that all colors specified in hex should be lowercase.

Example:

        http://192.168.0.1/palimg/logo.gif/pg01aaaaaa99cccccc

TINTING
You can tint the image by adding "/pt000000aaaaaa" to the end of the url. 000000 should be replaced with the color to tint towards. "aaaaaa" is optional and defines the "dark" tint color. Both colors should be specified as lowercase hex numbers.

Example:

        http://192.168.0.1/palimg/logo.gif/pt1c1c1c22dba1

PALETTE REPLACEMENT
You can specify a palette to replace the palette of the image. Do this by adding up to six sets of seven hex lowercase numbers prefixed with "/p" to the end of the URL.

Example:

        http://192.168.0.1/palimg/logo.gif/p01234567890abcfffffffcccccccddddddd

BUGS AND LIMITATIONS
There are no known bugs in this module.

Please report problems to the Perlbal mailing list, http://groups.google.com/group/perlbal

Patches are welcome.

AUTHORS
Brad Fitzpatrick <brad@danga.com> Mark Smith <junior@danga.com>

LICENSE AND COPYRIGHT
Artistic/GPLv2, at your choosing.

Copyright 2004, Danga Interactive Copyright 2005-2007, Six Apart Ltd