Problema GD And BMP

[kakashi]

Ciao ragazzi ho un problema con le librerie GD.
Ho una classe Php che mi permette di fare i resize immagini.
Ho aggiunto una funzione per convertire le Bmp in Jpg, ma lo script mi va in errore e mi fa il resize sempre una volta invece di farli tutti insieme

class Resize_Image {

var $image_to_resize;
var $new_width;
var $new_height;
var $ratio;
var $new_image_name;
var $save_folder;

function resize()
{
if(!file_exists($this->image_to_resize))
{
  exit("File ".$this->image_to_resize." does not exist.");
}

$info = GetImageSize($this->image_to_resize);

if(empty($info))
{
  exit("The file ".$this->image_to_resize." doesn't seem to be an image.");
}

$width = $info[0];
$height = $info[1];
$mime = $info['mime'];

/* Keep Aspect Ratio? */

if($this->ratio)
{
    if($width > $this->new_width || $height > $this->new_height){
        if($width > $height){
            $factor = (float)$this->new_width / (float)$width;
            $this->new_height = $factor * $height;
        }
        else
        {
            $factor = (float)$this->new_height / (float)$height;
            $this->new_width = $factor * $width;
        }
    }
    else
    {
        $this->new_width = $width ;
        $this->new_height = $height;
    }
}

// What sort of image?
$type = substr(strrchr($mime, '/'), 1);

switch ($type)
{
case 'jpeg':
case 'jpg' :
case 'JPG' :
    $image_create_func = 'ImageCreateFromJPEG';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'png':
    $image_create_func = 'ImageCreateFromPNG';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'bmp':
    $image_create_func = 'ImageCreateFromBMP';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'gif':
    $image_create_func = 'ImageCreateFromGIF';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'vnd.wap.wbmp':
    $image_create_func = 'ImageCreateFromWBMP';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'xbm':
    $image_create_func = 'ImageCreateFromXBM';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

default:
    $image_create_func = 'ImageCreateFromJPEG';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
}

function imagecreatefrombmp($p_sFile)
    {
        //    Load the image into a string
        $file    =    fopen($p_sFile,"rb");
        $read    =    fread($file,10);
        while(!feof($file)&&($read<>""))
            $read    .=    fread($file,1024);
       
        $temp    =    unpack("H*",$read);
        $hex    =    $temp[1];
        $header    =    substr($hex,0,108);
       
        //    Process the header
        //    Structure: [url]http://www.fastgraph.com/help/bmp_header_format.html[/url]
        if (substr($header,0,4)=="424d")
        {
            //    Cut it in parts of 2 bytes
            $header_parts    =    str_split($header,2);
           
            //    Get the width        4 bytes
            $width            =    hexdec($header_parts[19].$header_parts[18]);
           
            //    Get the height        4 bytes
            $height            =    hexdec($header_parts[23].$header_parts[22]);
           
            //    Unset the header params
            unset($header_parts);
        }
       
        //    Define starting X and Y
        $x                =    0;
        $y                =    1;
       
        //    Create newimage
        $image            =    imagecreatetruecolor($width,$height);
       
        //    Grab the body from the image
        $body            =    substr($hex,108);

        //    Calculate if padding at the end-line is needed
        //    Divided by two to keep overview.
        //    1 byte = 2 HEX-chars
        $body_size        =    (strlen($body)/2);
        $header_size    =    ($width*$height);

        //    Use end-line padding? Only when needed
        $usePadding        =    ($body_size>($header_size*3)+4);
       
        //    Using a for-loop with index-calculation instaid of str_split to avoid large memory consumption
        //    Calculate the next DWORD-position in the body
        for ($i=0;$i<$body_size;$i+=3)
        {
            //    Calculate line-ending and padding
            if ($x>=$width)
            {
                //    If padding needed, ignore image-padding
                //    Shift i to the ending of the current 32-bit-block
                if ($usePadding)
                    $i    +=    $width%4;
               
                //    Reset horizontal position
                $x    =    0;
               
                //    Raise the height-position (bottom-up)
                $y++;
               
                //    Reached the image-height? Break the for-loop
                if ($y>$height)
                    break;
            }
           
            //    Calculation of the RGB-pixel (defined as BGR in image-data)
            //    Define $i_pos as absolute position in the body
            $i_pos    =    $i*2;
            $r        =    hexdec($body[$i_pos+4].$body[$i_pos+5]);
            $g        =    hexdec($body[$i_pos+2].$body[$i_pos+3]);
            $b        =    hexdec($body[$i_pos].$body[$i_pos+1]);
           
            //    Calculate and draw the pixel
            $color    =    imagecolorallocate($image,$r,$g,$b);
            imagesetpixel($image,$x,$height-$y,$color);
           
            //    Raise the horizontal position
            $x++;
        }
       
        //    Unset the body / free the memory
        unset($body);
       
        //    Return image-object
        return $image;
    } 
    if($type != "bmp"){
        // New Image
        $image_c = ImageCreateTrueColor($this->new_width, $this->new_height);    
        $new_image = $image_create_func($this->image_to_resize);
        ImageCopyResampled($image_c, $new_image, 0, 0, 0, 0, $this->new_width, $this->new_height, $width, $height);
    }

            if($this->save_folder)
            {
               if($this->new_image_name)
               {
               $new_name = $this->new_image_name.'.'.$new_image_ext;
               }
               else
               {
               $new_name = $this->new_thumb_name(basename($this->image_to_resize)).'_resized.'.$new_image_ext;
               }

            $save_path = $this->save_folder.$new_name;
            }
            else
            {
            /* Show the image without saving it to a folder */
               header("Content-Type: ".$mime);

               $image_save_func($image_c,60);

               $save_path = '';
            }
        if($type != "bmp"){
            $process = $image_save_func($image_c, $save_path,60);
        }
            return array('result' => $process, 'new_file_path' => $save_path);

        }

    function new_thumb_name($filename)
    {
        $string = trim($filename);
        $string = strtolower($string);
        $string = trim(ereg_replace("[^ A-Za-z0-9_]", " ", $string));
        $string = ereg_replace("[ tnr]+", "_", $string);
        $string = str_replace(" ", '_', $string);
        $string = ereg_replace("[ _]+", "_", $string);

        return $string;
    } 

L'errore che mi da è questo Fatal error: Cannot redeclare imagecreatefrombmp() (previously declared in C:\AppServ\www\libs\thumbnail.inc.php:767) in C:\AppServ\www\libs\thumbnail.inc.php on line 767

sapete aiutarmi??

[kakashi]

ho risolto cosi, Grazie cmq XD

class Resize_Image {

var $image_to_resize;
var $new_width;
var $new_height;
var $ratio;
var $new_image_name;
var $save_folder;

function resize()
{
if(!file_exists($this->image_to_resize))
{
  exit("File ".$this->image_to_resize." does not exist.");
}

$info = GetImageSize($this->image_to_resize);

if(empty($info))
{
  exit("The file ".$this->image_to_resize." doesn't seem to be an image.");
}

$width = $info[0];
$height = $info[1];
$mime = $info['mime'];

/* Keep Aspect Ratio? */

if($this->ratio)
{
    if($width > $this->new_width || $height > $this->new_height){
        if($width > $height){
            $factor = (float)$this->new_width / (float)$width;
            $this->new_height = $factor * $height;
        }
        else
        {
            $factor = (float)$this->new_height / (float)$height;
            $this->new_width = $factor * $width;
        }
    }
    else
    {
        $this->new_width = $width ;
        $this->new_height = $height;
    }
}

// What sort of image?
$type = substr(strrchr($mime, '/'), 1);

function ConvertBMP2GD($src, $dest = false) {
    if(!($src_f = fopen($src, "rb"))) {
        return false;
    }
    if(!($dest_f = fopen($dest, "wb"))) {
        return false;
    }
    $header = unpack("vtype/Vsize/v2reserved/Voffset", fread($src_f,14));
    $info = unpack("Vsize/Vwidth/Vheight/vplanes/vbits/Vcompression/Vimagesize/Vxres/Vyres/Vncolor/Vimportant",fread($src_f, 40));

    extract($info);
    extract($header);

    if($type != 0x4D42) { // signature "BM"
        return false;
    }

    $palette_size = $offset - 54;
    $ncolor = $palette_size / 4;
    $gd_header = "";
    // true-color vs. palette
    $gd_header .= ($palette_size == 0) ? "\xFF\xFE" : "\xFF\xFF";
    $gd_header .= pack("n2", $width, $height);
    $gd_header .= ($palette_size == 0) ? "\x01" : "\x00";
    if($palette_size) {
        $gd_header .= pack("n", $ncolor);
    }
    // no transparency
    $gd_header .= "\xFF\xFF\xFF\xFF";

    fwrite($dest_f, $gd_header);

    if($palette_size) {
        $palette = fread($src_f, $palette_size);
        $gd_palette = "";
        $j = 0;
        while($j < $palette_size) {
            $b = $palette{$j++};
            $g = $palette{$j++};
            $r = $palette{$j++};
            $a = $palette{$j++};
            $gd_palette .= "$r$g$b$a";
        }
    $gd_palette .= str_repeat("\x00\x00\x00\x00", 256 - $ncolor);
    fwrite($dest_f, $gd_palette);
    }

    $scan_line_size = (($bits * $width) + 7) >> 3;
    $scan_line_align = ($scan_line_size & 0x03) ? 4 - ($scan_line_size &
    0x03) : 0;

    for($i = 0, $l = $height - 1; $i < $height; $i++, $l--) {
        // BMP stores scan lines starting from bottom
        fseek($src_f, $offset + (($scan_line_size + $scan_line_align) *
        $l));
        $scan_line = fread($src_f, $scan_line_size);
        if($bits == 24) {
            $gd_scan_line = "";
            $j = 0;
            while($j < $scan_line_size) {
                $b = $scan_line{$j++};
                $g = $scan_line{$j++};
                $r = $scan_line{$j++};
                $gd_scan_line .= "\x00$r$g$b";
            }
        }
        else if($bits == 8) {
            $gd_scan_line = $scan_line;
        }
        else if($bits == 4) {
            $gd_scan_line = "";
            $j = 0;
            while($j < $scan_line_size) {
                $byte = ord($scan_line{$j++});
                $p1 = chr($byte >> 4);
                $p2 = chr($byte & 0x0F);
                $gd_scan_line .= "$p1$p2";
            } 
            $gd_scan_line = substr($gd_scan_line, 0, $width);
        }
        else if($bits == 1)
        {
            $gd_scan_line = "";
            $j = 0;
            while($j < $scan_line_size) {
            $byte = ord($scan_line{$j++});
            $p1 = chr((int) (($byte & 0x80) != 0));
            $p2 = chr((int) (($byte & 0x40) != 0));
            $p3 = chr((int) (($byte & 0x20) != 0));
            $p4 = chr((int) (($byte & 0x10) != 0));
            $p5 = chr((int) (($byte & 0x08) != 0));
            $p6 = chr((int) (($byte & 0x04) != 0));
            $p7 = chr((int) (($byte & 0x02) != 0));
            $p8 = chr((int) (($byte & 0x01) != 0));
            $gd_scan_line .= "$p1$p2$p3$p4$p5$p6$p7$p8";
        } 
            $gd_scan_line = substr($gd_scan_line, 0, $width);
        }

        fwrite($dest_f, $gd_scan_line);
    }
    fclose($src_f);
    fclose($dest_f);
    return true;
}

function imagecreatefrombmp($filename) {
    $tmp_name = tempnam("/tmp", "GD");
    if(ConvertBMP2GD($filename, $tmp_name))
    {
        $img = imagecreatefromgd($tmp_name);
        unlink($tmp_name);
        return $img;
    } 
    return false;
} 

switch ($type)
{
case 'jpeg':
case 'jpg' :
case 'JPG' :
    $image_create_func = 'ImageCreateFromJPEG';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'png':
    $image_create_func = 'ImageCreateFromPNG';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'bmp':
    //$image_create_func = 'imagecreatefrombmp';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'gif':
    $image_create_func = 'ImageCreateFromGIF';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'vnd.wap.wbmp':
    $image_create_func = 'ImageCreateFromWBMP';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

case 'xbm':
    $image_create_func = 'ImageCreateFromXBM';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
    break;

default:
    $image_create_func = 'ImageCreateFromJPEG';
    $image_save_func = 'ImageJPEG';
    $new_image_ext = 'jpg';
}

        // New Image
        $image_c = ImageCreateTrueColor($this->new_width, $this->new_height);    
        if($type != "bmp"){
            $new_image = $image_create_func($this->image_to_resize);}
        else{
            $new_image = imagecreatefrombmp($this->image_to_resize);}
        ImageCopyResampled($image_c, $new_image, 0, 0, 0, 0, $this->new_width, $this->new_height, $width, $height);

            if($this->save_folder)
            {
               if($this->new_image_name)
               {
                    $new_name = $this->new_image_name.'.'.$new_image_ext;
               }
               else
               {
                    $new_name = $this->new_thumb_name(basename($this->image_to_resize)).'.'.$new_image_ext;
               }

                    $save_path = $this->save_folder.$new_name;
            }
            else
            {
                /* Show the image without saving it to a folder */
               header("Content-Type: ".$mime);
               $image_save_func($image_c,60);
               $save_path = '';
            }
            $process = $image_save_func($image_c, $save_path,60);
            return array('result' => $process, 'new_file_path' => $save_path);

    function new_thumb_name($filename)
    {
        $string = trim($filename);
        $string = strtolower($string);
        $string = trim(ereg_replace("[^ A-Za-z0-9_]", " ", $string));
        $string = ereg_replace("[ tnr]+", "_", $string);
        $string = str_replace(" ", '_', $string);
        $string = ereg_replace("[ _]+", "_", $string);

        return $string;
    }
}
}