Brad Fitzpatrick > Perlbal-1.70 > Perlbal::Plugin::Palimg

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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 begining 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://lists.danga.com/mailman/listinfo/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

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