GIF89a Overlap for PHP

• PHP extension for GifOverlap
• http://sourceforge.net/projects/gifovlap/

spec

API

class GIFOverlap {
    function stack($gif_data);  return true/false
    function output();          return $gif_data
}

usage

new $go = new GIFOverlap(get_file_contents('background.gif'));
$go->stack(get_file_contents('avatar.gif'));
$go->stack(get_file_contents('item.gif'));
echo $go->output; 

milestone

• one frame image overlap with transparent index
• php binding
• pre-alpha release
• 256 color optimization
• animation
• trimming and dispose
• alpha release
• test test test...

SF.NET

registration

public description

GIF89a Overlap PHP extension.

modify giflib/util/gifovly.c overlay routine to overlap,
add GIF89a extend function - transparent and GIF animation.

ref) http://pwiki.awm.jp/~yoya/?gifovlap

registration description

sorry, i cancel gifovly project.

giflib/util/gifovly.c inspired me.
gifovly.c is based begore GIF89 spec,
no transparent, no animation.

I think so good extend gifovlay.c
to GIF89a function include,
modify overlay to overlap routine, 
and provide php extension make us happy.

ex)
 new $go = new GIFOverlap();
 $go->add(get_file_contents('background.gif'));
 $go->add(get_file_contents('avatar.gif'));
 $go->add(get_file_contents('item.gif'));
 echo $go->output(); // item.gif overlap avatar.gif overlap background.gif

My poor english, But I beleave heartful communication.

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relative

• http://d.hatena.ne.jp/sodex/20070508/1178595667

• GifOverlap
• giflib | GIF