Black Background of Gif ? help me

[fwcanlam]

I try to create new gif from gift creator tool, but it has black background. So, how to fix it ? Please help me !

[jdecool]

Hi, could you send the original gif ?

[fwcanlam]

thanks for reply me, @jdecool This is all. they have transparent background.

[jdecool]

I can't check your problem today.

I will make some tests this weekend.

In addition to your images, can you create a gift with the code you used to generate your image ?

Thanks.

[fwcanlam]

`<?php $rootpath = ''; require('incfiles/core.php'); use PHPImageWorkshop\ImageWorkshop; require_once($phpbb_root_path.'PHPImageWorkshop/ImageWorkshop.php'); class GifCreator { /**

• @var string The gif string source (old: this->GIF) */ private $gif;

  /**

• @var string Encoder version (old: this->VER) */ private $version;

  /**

• @var boolean Check the image is build or not (old: this->IMG) */ private $imgBuilt;

  /**

• @var array Frames string sources (old: this->BUF) */ private $frameSources;

  /**

• @var integer Gif loop (old: this->LOP) */ private $loop;

  /**

• @var integer Gif dis (old: this->DIS) */ private $dis;

  /**

• @var integer Gif color (old: this->COL) */ private $colour;

  /**

• @var array (old: this->ERR) */ private $errors;

  // Methods // ===================================================================================

  /**

• Constructor */ public function __construct() { $this->reset();

  // Static data
  $this->version = 'GifCreator: Under development';
  $this->errors = array(
      'ERR00' => 'Does not supported function for only one image.',
      'ERR01' => 'Source is not a GIF image.',
      'ERR02' => 'You have to give resource image variables, image URL or image binary sources in $frames array.',
      'ERR03' => 'Does not make animation from animated GIF source.',
  );

  }

  /**

• Create the GIF string (old: GIFEncoder)
• @param array $frames An array of frame: can be file paths, resource image variables, binary sources or image URLs
• @param array $durations An array containing the duration of each frame
• @param integer $loop Number of GIF loops before stopping animation (Set 0 to get an infinite loop)

• @return string The GIF string source */ public function create($frames = array(), $durations = array(), $loop = 0) { if (!is_array($frames) && !is_array($GIF_tim)) {

      throw new \Exception($this->version.': '.$this->errors['ERR00']);
  }
  
  $this->loop = ($loop > -1) ? $loop : 0;
  $this->dis = 2;
  
  for ($i = 0; $i < count($frames); $i++) {
  
      if (is_resource($frames[$i])) { // Resource var
  
          $resourceImg = $frames[$i];
  
          ob_start();
          imagegif($frames[$i]);
          $this->frameSources[] = ob_get_contents();
          ob_end_clean();
  
      } elseif (is_string($frames[$i])) { // File path or URL or Binary source code
  
          if (file_exists($frames[$i]) || filter_var($frames[$i], FILTER_VALIDATE_URL)) { // File path
  
              $frames[$i] = file_get_contents($frames[$i]);                    
          }
  
          $resourceImg = imagecreatefromstring($frames[$i]);
  
          ob_start();
          imagegif($resourceImg);
          $this->frameSources[] = ob_get_contents();
          ob_end_clean();
  
      } else { // Fail
  
          throw new \Exception($this->version.': '.$this->errors['ERR02'].' ('.$mode.')');
      }
  
      if ($i == 0) {
  
          $colour = imagecolortransparent($resourceImg);
      }
  
      if (substr($this->frameSources[$i], 0, 6) != 'GIF87a' && substr($this->frameSources[$i], 0, 6) != 'GIF89a') {
  
          throw new \Exception($this->version.': '.$i.' '.$this->errors['ERR01']);
      }
  
      for ($j = (13 + 3 * (2 << (ord($this->frameSources[$i] { 10 }) & 0x07))), $k = TRUE; $k; $j++) {
  
          switch ($this->frameSources[$i] { $j }) {
  
              case '!':
  
                  if ((substr($this->frameSources[$i], ($j + 3), 8)) == 'NETSCAPE') {
  
                      throw new \Exception($this->version.': '.$this->errors['ERR03'].' ('.($i + 1).' source).');
                  }
  
              break;
  
              case ';':
  
                  $k = false;
              break;
          }
      }
  
      unset($resourceImg);
  }
  
  if (isset($colour)) {
  
      $this->colour = $colour;
  
  } else {
  
      $red = $green = $blue = 0;
      $this->colour = ($red > -1 && $green > -1 && $blue > -1) ? ($red | ($green << 8) | ($blue << 16)) : -1;
  }
  
  $this->gifAddHeader();
  
  for ($i = 0; $i < count($this->frameSources); $i++) {
  
      $this->addGifFrames($i, $durations[$i]);
  }
  
  $this->gifAddFooter();
  
  return $this->gif;

  }

  // Internals // ===================================================================================

  /**

• Add the header gif string in its source (old: GIFAddHeader) */ public function gifAddHeader() { $cmap = 0;

  if (ord($this->frameSources[0] { 10 }) & 0x80) {
  
      $cmap = 3 * (2 << (ord($this->frameSources[0] { 10 }) & 0x07));
  
      $this->gif .= substr($this->frameSources[0], 6, 7);
      $this->gif .= substr($this->frameSources[0], 13, $cmap);
      $this->gif .= "!\377\13NETSCAPE2.0\3\1".$this->encodeAsciiToChar($this->loop)."\0";
  }

  }

  /**

• Add the frame sources to the GIF string (old: GIFAddFrames)
• @param integer $i

• @param integer $d / public function addGifFrames($i, $d) { $Locals_str = 13 + 3 (2 << (ord($this->frameSources[ $i ] { 10 }) & 0x07));

  $Locals_end = strlen($this->frameSources[$i]) - $Locals_str - 1;
  $Locals_tmp = substr($this->frameSources[$i], $Locals_str, $Locals_end);
  
  $Global_len = 2 << (ord($this->frameSources[0 ] { 10 }) & 0x07);
  $Locals_len = 2 << (ord($this->frameSources[$i] { 10 }) & 0x07);
  
  $Global_rgb = substr($this->frameSources[0], 13, 3 * (2 << (ord($this->frameSources[0] { 10 }) & 0x07)));
  $Locals_rgb = substr($this->frameSources[$i], 13, 3 * (2 << (ord($this->frameSources[$i] { 10 }) & 0x07)));
  
  $Locals_ext = "!\xF9\x04".chr(($this->dis << 2) | 1 + 0).chr(($d >> 0 ) & 0xFF).chr(($d >> 8) & 0xFF)."\x0\x0";
  
  if ($this->colour > -1 && ord($this->frameSources[$i] { 10 }) & 0x80) {
  
      for ($j = 0; $j < (2 << (ord($this->frameSources[$i] { 10 } ) & 0x07)); $j++) {
  
          if (ord($Locals_rgb { 3 * $j + 0 }) == (($this->colour >> 16) & 0xFF) &&
              ord($Locals_rgb { 3 * $j + 1 }) == (($this->colour >> 8) & 0xFF) &&
              ord($Locals_rgb { 3 * $j + 2 }) == (($this->colour >> 0) & 0xFF)
          ) {
              $Locals_ext = "!\xF9\x04".chr(($this->dis << 2) + 1).chr(($d >> 0) & 0xFF).chr(($d >> 8) & 0xFF).chr($j)."\x0";
              break;
          }
      }
  }
  
  switch ($Locals_tmp { 0 }) {
  
      case '!':
  
          $Locals_img = substr($Locals_tmp, 8, 10);
          $Locals_tmp = substr($Locals_tmp, 18, strlen($Locals_tmp) - 18);
  
      break;
  
      case ',':
  
          $Locals_img = substr($Locals_tmp, 0, 10);
          $Locals_tmp = substr($Locals_tmp, 10, strlen($Locals_tmp) - 10);
  
      break;
  }
  
  if (ord($this->frameSources[$i] { 10 }) & 0x80 && $this->imgBuilt) {
  
      if ($Global_len == $Locals_len) {
  
          if ($this->gifBlockCompare($Global_rgb, $Locals_rgb, $Global_len)) {
  
              $this->gif .= $Locals_ext.$Locals_img.$Locals_tmp;
  
          } else {
  
              $byte = ord($Locals_img { 9 });
              $byte |= 0x80;
              $byte &= 0xF8;
              $byte |= (ord($this->frameSources[0] { 10 }) & 0x07);
              $Locals_img { 9 } = chr($byte);
              $this->gif .= $Locals_ext.$Locals_img.$Locals_rgb.$Locals_tmp;
          }
  
      } else {
  
          $byte = ord($Locals_img { 9 });
          $byte |= 0x80;
          $byte &= 0xF8;
          $byte |= (ord($this->frameSources[$i] { 10 }) & 0x07);
          $Locals_img { 9 } = chr($byte);
          $this->gif .= $Locals_ext.$Locals_img.$Locals_rgb.$Locals_tmp;
      }
  
  } else {
  
      $this->gif .= $Locals_ext.$Locals_img.$Locals_tmp;
  }
  
  $this->imgBuilt = true;

  }

  /**

• Add the gif string footer char (old: GIFAddFooter) */ public function gifAddFooter() { $this->gif .= ';'; }

  /**

• Compare two block and return the version (old: GIFBlockCompare)
• @param string $globalBlock
• @param string $localBlock
• @param integer $length

• @return integer */ public function gifBlockCompare($globalBlock, $localBlock, $length) { for ($i = 0; $i < $length; $i++) {

      if ($globalBlock { 3 * $i + 0 } != $localBlock { 3 * $i + 0 } ||
          $globalBlock { 3 * $i + 1 } != $localBlock { 3 * $i + 1 } ||
          $globalBlock { 3 * $i + 2 } != $localBlock { 3 * $i + 2 }) {
  
          return 0;
      }
  }
  
  return 1;

  }

  /**

• Encode an ASCII char into a string char (old: GIFWord)
• $param integer $char ASCII char

• @return string */ public function encodeAsciiToChar($char) { return (chr($char & 0xFF).chr(($char >> 8) & 0xFF)); }

  /**

• Reset and clean the current object */ public function reset() { $this->frameSources; $this->gif = 'GIF89a'; // the GIF header $this->imgBuilt = false; $this->loop = 0; $this->dis = 2; $this->colour = -1; }

  // Getter / Setter // ===================================================================================

  /**

• Get the final GIF image string (old: GetAnimation)
• @return string */ public function getGif() { return $this->gif; } } $base = ImageWorkshop::initFromPath($rootpath.'/learnecom/images/blank.png'); //tao anh trong $base2 = ImageWorkshop::initFromPath($rootpath.'/learnecom/images/blank.png'); //tao anh trong (2)

$canh=ImageWorkshop::initFromPath($rootpath.'/learnecom/images/canh/2.png'); $base->addLayerOnTop($canh, 0, 10, "LB");

$canh=ImageWorkshop::initFromPath($rootpath.'/learnecom/equip/quanao/m/5.png'); $base->addLayerOnTop($canh, 0, 0, "LB"); $base2->addLayerOnTop($canh, 0, 0, "LB"); $canh=ImageWorkshop::initFromPath($rootpath.'/learnecom/equip/bieucam/m/3.png'); $base->addLayerOnTop($canh, 0, 0, "LB"); $canh=ImageWorkshop::initFromPath($rootpath.'/learnecom/equip/bieucam/m/3-2.png'); $base2->addLayerOnTop($canh, 0, 0, "LB"); $canh=ImageWorkshop::initFromPath($rootpath.'/learnecom/images/toc/1.png'); $base->addLayerOnTop($canh, 0, 0, "LB"); $base2->addLayerOnTop($canh, 0, 0, "LB");

$canh=ImageWorkshop::initFromPath($rootpath.'/learnecom/images/kinh/7.png'); $base->addLayerOnTop($canh, 0, 0, "LB");

$canh=ImageWorkshop::initFromPath($rootpath.'/learnecom/images/non/25.png'); $base->addLayerOnTop($canh, 0, 0, "LB");

$canh=ImageWorkshop::initFromPath($rootpath.'/learnecom/images/vukhi/2.png'); $base->addLayerOnTop($canh, 0, 0, "LB");

$desiredWidth = 120; $desiredHeight = 150; $image = $base->getResult(); $image2 = $base2->getResult(); $frames = array($image,$image2); $durations = array(150, 50); $gc = new GifCreator(); $gc->create($frames, $durations, 0); $gifBinary = $gc->getGif(); header('Content-type: image/gif'); echo $gifBinary; exit; ?>` This is simple, right ?

[fwcanlam]

This is my result today, But it has an error. I cant fix it. Can you help me ? My code: [code] $image = $base->getResult(); $image2 = $base2->getResult();

ob_start(); $new = imagecreatetruecolor(120, 150); $fill = imagecolorallocate($new, 0, 0, 0,127); imagecolortransparent($image, $fill); imagefill($image, 0, 0, $fill); imagealphablending($image, false); imagegif($image); $frames[]=ob_get_contents(); $framed[]=150; // Delay in the animation. ob_end_clean(); ob_start();

$fill = imagecolorallocate($image2, 0,0,0, 127); imagecolortransparent($image2, $fill); imagefill($image2, 0, 0, $fill); imagealphablending($image2, false); imagegif($image2); $frames[]=ob_get_contents(); $framed[]=50; // Delay in the animation. ob_end_clean();

$gif = new GIFEncoder($frames,$framed,0,2,0,0,0,'bin');

header('Content-type: image/png'); echo $gif->GetAnimation(); exit; [/code] Original: