RT。翻译成C++的,能翻译为DELPHI的就更好啦class PhpPsdReader {var $infoArray;     var $fp;

    var $fileName;

      var $tempFileName;

         var $colorBytesLength;
function PhpPsdReader($fileName) 
{
    set_time_limit(0);

    $this->infoArray = array();

    $this->fileName = $fileName;

    $this->fp = fopen($this->fileName,'r');
    if (fread($this->fp,4)=='8BPS') 
   {        $this->infoArray['version id'] = $this->_getInteger(2);

        fseek($this->fp,6,SEEK_CUR); // 6 bytes of 0's

        $this->infoArray['channels'] = $this->_getInteger(2);

        $this->infoArray['rows'] = $this->_getInteger(4);

        $this->infoArray['columns'] = $this->_getInteger(4);

$this->infoArray['colorDepth'] = $this->_getInteger(2);

$this->infoArray['colorMode'] = $this->_getInteger(2);

/* COLOR MODE DATA SECTION */ 
//4bytes Length The length of the following color data.

$this->infoArray['colorModeDataSectionLength'] = $this->_getInteger(4);

fseek($this->fp,$this->infoArray['colorModeDataSectionLength'],SEEK_CUR); 
// ignore this snizzle
/*  IMAGE RESOURCES */

$this->infoArray['imageResourcesSectionLength'] = $this->_getInteger(4);

fseek($this->fp,$this->infoArray['imageResourcesSectionLength'],SEEK_CUR); 
$this->infoArray['layerMaskDataSectionLength'] = $this->_getInteger(4);

fseek($this->fp,$this->infoArray['layerMaskDataSectionLength'],SEEK_CUR); 
$this->infoArray['compressionType'] = $this->_getInteger(2);

$this->infoArray['oneColorChannelPixelBytes'] = $this->infoArray['colorDepth']/8;
$this->colorBytesLength = $this->infoArray['rows']*$this->infoArray['columns']*$this->infoArray ['oneColorChannelPixelBytes'];
if ($this->infoArray['colorMode']==2) 
{
$this->infoArray['error'] = 'images with indexed colours are not supported yet';
return false;
}
  } else 
        {
$this->infoArray['error'] = 'invalid or unsupported psd';

return false;

}

}

function getImage() 
{
         switch($this->infoArray['compressionType']) 
{
case 1:
$this->infoArray['scanLinesByteCounts'] = array();
for ($i=0; $i<($this->infoArray['rows']*$this->infoArray['channels']); $i++) 
$this->infoArray['scanLinesByteCounts'][] = $this->_getInteger(2); $this->tempFileName = tempnam(realpath('/tmp'),'decompressedImageData');
$tfp = fopen($this->tempFileName,'wb');
foreach ($this->infoArray['scanLinesByteCounts'] as $scanLinesByteCount) 
{
fwrite($tfp,$this->_getPackedBitsDecoded(fread($this->fp,$scanLinesByteCount)));
}
fclose($tfp);
fclose($this->fp);
$this->fp = fopen($this->tempFileName,'r');
default:
break;
}
$image = imagecreatetruecolor($this->infoArray['columns'],$this->infoArray['rows']);
for ($rowPointer = 0; ($rowPointer < $this->infoArray['rows']); $rowPointer++) 
{
    for ($columnPointer = 0; ($columnPointer < $this->infoArray['columns']); $columnPointer++) 
   {
switch ($this->infoArray['colorMode']) 
{

case 2:  exit;
                  break;

case 0:
               if ($columnPointer == 0)  $bitPointer = 0;
             if ($bitPointer==0)  $currentByteBits = str_pad(base_convert(bin2hex(fread($this->fp,1)), 16, 2),8,'0',STR_PAD_LEFT);
                $r = $g = $b = (($currentByteBits[$bitPointer]=='1')?0:255);
       $bitPointer++;
if ($bitPointer==8) $bitPointer = 0;
break;
case 1:
case 8: // 8 is indexed with 1 color..., so grayscale

$r = $g = $b = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
break;
case 4: // CMYK
$c = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
$currentPointerPos = ftell($this->fp)
fseek($this->fp,$this->colorBytesLength-1,SEEK_CUR);
$m = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
fseek($this->fp,$this->colorBytesLength-1,SEEK_CUR);
$y = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
fseek($this->fp,$this->colorBytesLength-1,SEEK_CUR);
$k = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
fseek($this->fp,$currentPointerPos);

$r = round(($c * $k) / (pow(2,$this->infoArray['colorDepth'])-1));
$g = round(($m * $k) / (pow(2,$this->infoArray['colorDepth'])-1));
$b = round(($y * $k) / (pow(2,$this->infoArray['colorDepth'])-1));   break;   case 9: // hunter Lab
   // i still need an understandable lab2rgb convert algorithm... if you have one, please let me know!
$l = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
$currentPointerPos = ftell($this->fp);

fseek($this->fp,$this->colorBytesLength-1,SEEK_CUR);
$a = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
fseek($this->fp,$this->colorBytesLength-1,SEEK_CUR);
$b =  $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
fseek($this->fp,$currentPointerPos);
$r = $l;
$g = $a;

$b = $b;
break;

default:
$r = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
$currentPointerPos = ftell($this->fp);

fseek($this->fp,$this->colorBytesLength-1,SEEK_CUR);

$g = $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
fseek($this->fp,$this->colorBytesLength-1,SEEK_CUR);

$b =  $this->_getInteger($this->infoArray['oneColorChannelPixelBytes']);
fseek($this->fp,$currentPointerPos);

break;
}
if (($this->infoArray['oneColorChannelPixelBytes']==2)) 
{

$r = $r >> 8;

$g = $g >> 8;

$b = $b >> 8;

} else if (($this->infoArray['oneColorChannelPixelBytes']==4)) 
{

$r = $r >> 24;

$g = $g >> 24;

$b = $b >> 24;

}
$pixelColor = imagecolorallocate($image,$r,$g,$b);

imagesetpixel($image,$columnPointer,$rowPointer,$pixelColor);

     }

   }

fclose($this->fp);

if (isset($this->tempFileName)) 
unlink($this->tempFileName);

return $image;

}
/**
 *
 * PRIVATE FUNCTIONS
 *
 */
function _getPackedBitsDecoded($string) 
{
 /*
The PackBits algorithm will precede a block of data with a one byte header n, where n is interpreted as   follows:
n Meaning
0 to 127 Copy the next n + 1 symbols verbatim

  -127 to -1 Repeat the next symbol 1 - n times

  -128 Do nothing
Decoding:
Step 1. Read the block header (n).

Step 2. If the header is an EOF exit.

Step 3. If n is non-negative, copy the next n + 1 symbols to the output stream and go to step 1.
Step 4. If n is negative, write 1 - n copies of the next symbol to the output stream and go to step 1. */ $stringPointer = 0;

$returnString = '';
while (1) 
{

     if (isset($string[$stringPointer])) 
        $headerByteValue = $this->_unsignedToSigned(hexdec(bin2hex($string[$stringPointer])),1);
     else 
                return $returnString;

     $stringPointer++;
    if ($headerByteValue >= 0) 
    {

for ($i=0; $i <= $headerByteValue; $i++) 
{

$returnString .= $string[$stringPointer];
$stringPointer++;

}

    } 
    else 
   {

if ($headerByteValue != -128) 
{

$copyByte = $string[$stringPointer];

$stringPointer++;
for ($i=0; $i < (1-$headerByteValue); $i++) 
{

$returnString .= $copyByte; }

}

   }

}

}
function _unsignedToSigned($int,$byteSize=1) 
{

switch($byteSize) 
{

case 1:

if ($int<128) 
    return $int;

else 
    return -256+$int;

break;
case 2:

if ($int<32768) 
    return $int;

else 
    return -65536+$int;
case 4:

if ($int<2147483648) 
    return $int;

else 
    return -4294967296+$int;
default:
return $int;

}

}
function _hexReverse($hex) 
{

$output = '';

if (strlen($hex)%2) return false;

for ($pointer = strlen($hex);$pointer>=0;$pointer-=2) 
$output .= substr($hex,$pointer,2);

return $output;

}
function _getInteger($byteCount=1) 
{

switch ($byteCount) 
{

case 4:
// for some strange reason this is still broken...
return @reset(unpack('N',fread($this->fp,4))); break;
case 2:

return @reset(unpack('n',fread($this->fp,2)));

break;
default:eturn hexdec($this->_hexReverse(bin2hex(fread($this->fp,$byteCount))));

}

}
}/**
 * Returns an image identifier representing the image obtained from the given filename, using only GD, returns an empty string on failure
 *
 * @param string $fileName
 * @return image identifier
 */
function imagecreatefrompsd($fileName) 
{

$psdReader = new PhpPsdReader($fileName);

if (isset($psdReader->infoArray['error'])) 
return '';

else 
return $psdReader->getImage();
}
?>

解决方案 »

  1.   

    还不如直接在网上找C++ 或是DELPHI的代码... 
      

  2.   

    不会 C++ ,学过 delphi ,不过上课都在 CS
      

  3.   

    这个代码是将psd源文件改成大家都可以看到的图片格式
      

  4.   

    晕倒,这个不是C++和PHP代码,请楼主先学好基础再发。
      

  5.   

    不是PHP的 ? 那这到底是哪门子语言哪?
    我根本没学过PHP