Untitled

<?php


function alpha_blending ($image, $watermark, $image_x, $image_y) {
   
        ## lets blend source pixels with source alpha into destination =)
        for ($y = 0; $y < imagesy($watermark); $y++) {
            for ($x = 0; $x < imagesx($watermark); $x++) {
                           
                $argb_s = imagecolorat ($watermark,$x,$y);
                $argb_d = imagecolorat ($image,$x+$image_x,$y+$image_y);
                           
                $a_s = ($argb_s >> 24) << 1; 
                $r_s = $argb_s >> 16 & 0xFF;
                $g_s = $argb_s >>  8 & 0xFF;
                $b_s = $argb_s & 0xFF;
                               
                $r_d = $argb_d >> 16 & 0xFF;
                $g_d = $argb_d >>  8 & 0xFF;
                $b_d = $argb_d & 0xFF;
                               
                ## source pixel 100% opaque (alpha == 0)
                if ($a_s == 0) {
                    $r_d = $r_s; $g_d = $g_s; $b_d = $b_s;
                }
                
                ## source pixel 100% transparent (alpha == 255)
                else if ($a_s > 253) {
                
                ## using source alpha only, we have to mix (100-"some") percent
                ## of source with "some" percent of destination.
                
                } else {
                    $r_d = (($r_s * (0xFF-$a_s)) >> 8) + (($r_d * $a_s) >> 8);
                    $g_d = (($g_s * (0xFF-$a_s)) >> 8) + (($g_d * $a_s) >> 8);
                    $b_d = (($b_s * (0xFF-$a_s)) >> 8) + (($b_d * $a_s) >> 8);
                }
                               
                $rgb_d = imagecolorallocatealpha ($image, $r_d, $g_d, $b_d, 0);
                imagesetpixel ($image, $x+$image_x, $y+$image_y, $rgb_d);
            }
        }
    }

$pics = array();
global $pics;
function makehtml($pics)
{
	print "Creating picIndex.html\n";
	foreach( $pics as $fname ) {
	print "we still know about $fname\n";    
 	}
} 
 


function makeindex ($dirname)
{
print "inside makeindex\n";
	$dir = opendir( $dirname );
    
    while( $fname = readdir( $dir ) )
    {
		
		if ( preg_match( "//", $fname ) )
			{//print $fname;
			}
		if ( is_dir ("$dirname/$fname") && $fname != '.' && $fname != "..")
			{
				print "$dirname/$fname";
				return makeindex("$dirname/$fname");//recurse here
			}	
			
	   	if ( preg_match( "/[.]JPG$/", $fname ) )
    	    $pics []= $fname;
    	if ( preg_match( "/[.]jpg$/", $fname ) )
    	    $pics []= $fname;
    }
    closedir( $dir );
    sort ( $pics );
    
    
    foreach( $pics as $fname )
    {
           
   		$watermark = imagecreatefrompng( "watermark.png" );				   	
        $image = imagecreatefromjpeg( "$dirname/$fname" ); 

	   	$overlapX =imagesx( $image) - imagesx( $watermark);
   		$overlapY = imagesy( $image) - imagesy( $watermark);    
        
        
        alpha_blending($image, $watermark, $overlapX, $overlapY);
        
        print "Creating watermark for $fname\n";       
        
        imagejpeg( $image, "WaterPics/$fname" );
        


        $im = imagecreatefromjpeg( "$dirname/$fname" );
        $ox = imagesx( $im );
        $oy = imagesy( $im );
	    $nx = 150;
        $ny = floor( $oy * ( $nx / $ox ) );
        $ny = 113;

		        
        $nm = imagecreatetruecolor( $nx, $ny );

		$wm = $ox/$nx;
		$hm = $oy/$ny;
		$h_height = $ny/2;
		$w_height = $nx/2;
			

		//resize the picture

		if ( $ox > $oy ) {
			$adjusted_width = $ox/ $hm;
			$half_widht = $half_width / 2;
			$int_width = $half_width - $w_height;
			
	       	imagecopyresampled($nm,$im,-$int_widht,0,0,0,$adjusted_width,$ny,$ox,$oy);
	
		}
		else if ( $ox < $oy ) {
			$adjusted_height = $oy / $wm;
			$half_height = $adjusted_height / 2;
			$int_height = $half_height - $h_height;		

        	imagecopyresampled($nm,$im,0,-$int_height,0,0,$nx,$adjusted_height,$ox,$oy);
			
		}
		
		else {
		    imagecopyresized( $nm, $im, 0, 0, 0, 0, $nx, $ny, $ox, $oy );

		} 


        print "Creating thumb for $fname\n";
        //create thumbnail from image
        imagejpeg( $nm, "ThumbPics/$fname" );
        
        
		//destroy all image files when finished using them        
        imagedestroy($image);
        imagedestroy($watermark);
		imagedestroy($im);
		imagedestroy($nm);

  	}


      
    

      
    ob_start();

	?>

<html>
<head><title>Thumbnails</title></head>
<body>
<table cellspacing="0" cellpadding="2">
 	<tr>
    <?php
    	$index = 0;
        foreach( $pics as $fname ) {
        ?>
    <td valign="middle" align="center">
    <a href="WaterPics/<?php echo( $fname ); ?>" target="_blank"><img src="ThumbPics/<?php echo( $fname );
    	?>" border="0" /></a>
    </td>
    <?php
   		$index += 1;
        if ( $index % 4 == 0 ) { echo( "</tr><tr>" ); }
        } 
        ?>
     </tr>
     </table>
</body>
</html>
<?php
	$html = ob_get_clean();
	$fh = fopen( "picIndex.html", "w" );
	fwrite( $fh, $html );
	fclose( $fh );
?> 

<?php

}      	



$startdirname = "pix";
makeindex($startdirname);
makehtml($pics);
?>