深圳市一览网络股份有限
公司
ShenZhen Elanw Network 

Co.,Ltd.

地址：南山科技园南区数字技术园
B2 栋 4A 
Add: Room A,4th Floor,Block 
B2,Digi-Tech Park ,

电话（Tel）:0755-86133725
传真（Fax）:0755-22632616
网址
（Web）:www.YL1001.com

　

 

        

/** 

        

* GIF Encoder function.

        

* Combines the parsed GIF frames into one single animation.

        

*/

        

private

 

function

 encode(

$new_filename

,

$newwidth

,

$newheight

){

            

$mystring

 = "";

            

$this

->pointer = 0;

            

$this

->imagedata = 

array

();

            

$this

->imageinfo = 

array

();

            

$this

->handle = 0;

            

$this

->index=0;

 

            

$k

=0;

            

foreach

(

$this

->parsedfiles 

as

 

$imagepart

){

                

$this

->loadfile(

$imagepart

);

                

$this

->get_gif_header();

                

$this

->get_application_data();

                

$this

->get_comment_data();

                

$this

->get_graphics_extension(0);

                

$this

->get_image_block(0);

 

                

//get transparent color index and color

                

if

(isset(

$this

->encdata[

$this

->index-1]))

                    

$gxdata

 = 

$this

->encdata[

$this

->index-1]["graphicsextension"];

                

else

                    

$gxdata

 = null;

                

$ghdata

 = 

$this

->imageinfo["gifheader"];

                

$trcolor

 = "";

                

$hastransparency

=(

$gxdata

[3]&&1==1);

 

                

if

(

$hastransparency

){

                    

$trcx

 = ord(

$gxdata

[6]);

                    

$trcolor

 = 

substr

(

$ghdata

,13+

$trcx

*3,3);

                

}

 

                

//global color table to image data;

                

$this

->transfercolortable(

$this

->imageinfo["gifheader"],

$this

->imagedata[

$this

->index-1]

["imagedata"]); 
 

                

$imageblock

 = &

$this

->imagedata[

$this

->index-1]["imagedata"];

 

                

//if transparency exists transfer transparency index