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TITLE:GIF89a Overlap for PHP
CENTER:''GIF98a Overlap PHP extension''
RIGHT:(c) 2008/09/18- yoya@awm.jp
#contents
----
- PHP extension for [[GifOverlap]]
- http://sourceforge.net/projects/gifovlap/

* spec [#spec]

** API [#api]
 class GIFOverlap {
     function stack($gif_data);  return true/false
     function output();        return $gif_data
     function output();          return $gif_data
 }

** usage [#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 [#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 [#sf]

** registration [#sf-reg]

*** public description [#m689334a]
 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 [#ibb90097]
 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 [#rel]

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

- [[GifOverlap]]
- [[giflib]] | [[GIF]]