Bug #15549 Updated: only incomplet output

[sander]

 ID:               15549
 Updated by:       [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
-Status:           Open
+Status:           Bogus
 Bug Type:         GD related
 Operating System: Windows XP with apache
 PHP Version:      4.0.6
 New Comment:

The bug system is not the appropriate forum for asking support
questions. For a list of a range of more appropriate places to ask
for help using PHP, please visit http://www.php.net/support.php

GD is not thread safe (at least, not on Windows).


Previous Comments:
------------------------------------------------------------------------

[2002-02-14 05:25:22] [EMAIL PROTECTED]

The gd version is 2.0 or higher(phpinfo);
and the php version is 4.0.6

------------------------------------------------------------------------

[2002-02-14 05:12:12] [EMAIL PROTECTED]

I have written a script which sample a resized image and create a
copyrightstring on it. Then it should output the result on display. In
most of times its makes wonderfull, but sometimes its output incomplet
or empty images. Its happends every 10 times of try to load an image.
Here is the complete script:

function display_resized_image( $image, $newimage_extension,
$newimage_height,$newimage_width,$quality=80,$tmpimagetype="image/jpeg")
{
        $image_size=getimagesize($image);
        $image_width=$image_size[0];
        $image_height=$image_size[1];
        
        //### get image
        $pathexploted=pathinfo($image);
        $image_extension=$pathexploted["extension"];
        if ($image_extension=="jpg" || $image_extension=="png" ||
$image_extension=="tmp")
        {
                
                if ($image_extension=="jpg")
                {
                        $image_extension="jpeg";
                }
                if ($image_extension=="tmp")
                {
                        $tmptype=explode("/",$tmpimagetype);
                        if ($tmptype[0]=="image")
                        {
                                switch($tmptype[1])
                                {
                                        case "jpeg":
                                                $image_extension="jpeg";
                                                break;
                                        case "jpg":
                                                $image_extension="jpeg";
                                                break;
                                        case "png":
                                                $image_extension="png";
                                                break;
                                }
                        }
                        else
                        {
                                return -11;
                        }
                }       
                $function="imagecreatefrom" . $image_extension;
                $image = $function($image);
        }
        else
        {
                return -12;
        }
        //### calculate new size
        if ($newimage_height==-1 && $newimage_width==-1)
        {
                $newimage_height=$image_height;
                $newimage_width=$image_width;
        }
        else
        {
                if ($newimage_width==-1)
                {
                        $newimage_width=($image_width*$newimage_height)/$image_height;
                }
                if ($newimage_height==-1)
                {
                        $newimage_height=($image_height*$newimage_width)/$image_width;
                }
        }       
        
        //### create buffer image and sample resized image
        $buffer = imagecreatetruecolor($newimage_width,$newimage_height);
        imagecopyresampled($buffer,$image,0,0,0,0,$newimage_width
,$newimage_height,$image_width,$image_height);
        
        if ($newimage_width>=250)
        {
                //### Copyrightbild erstellen
                $cpbuffer = imagecreatetruecolor(300,30);
                imagestring ($cpbuffer, 5, 45, 8, "(C)2002 www.shopforkids.de",
imagecolorexact($cpbuffer, 255, 255, 255));
                
                //### alising line
                $linebuffer = imagecreatetruecolor(300,2);
                //### Copyrightbild einblenden
                
imagecopymerge($buffer,$cpbuffer,$newimage_width-300,$newimage_height-30,0,0,300,30,40);

                
imagecopymerge($buffer,$linebuffer,$newimage_width-300,$newimage_height-32,0,0,300,2,20);

        }
                
        //### shows images
        if ($newimage_extension=="jpg" || $newimage_extension=="png" ||
$newimage_extension=="jpeg")
        {
                if ($newimage_extension=="jpg")
                {
                        $newimage_extension="jpeg";
                }
                Header("Content-type: image/" . $newimage_extension);
                $function="image" . $newimage_extension;
                //$function="imagepng";
                if ($function=="imagejpeg")
                {
                        $function($buffer,"",$quality);
                }
                else
                {
                        $function($buffer);
                }
        }
        else
        {
                return -21;
        }
imagedestroy($buffer);
imagedestroy($cpbuffer);
imagedestroy($linebuffer);
}
Im sorry for my bad english.
Michael Berg

------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=15549&edit=1