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extract transparency fix from #8050

This commit is contained in:
Georg Ehrke 2014-07-30 12:16:03 +02:00 committed by Morris Jobke
parent 38e309b0fe
commit fa461befbc
1 changed files with 8 additions and 0 deletions
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8
lib/private/image.php
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@ -870,6 +870,14 @@ class OC_Image {
imagedestroy($process);
return false;
}
// preserve transparency
if($this->imageType == IMAGETYPE_GIF or $this->imageType == IMAGETYPE_PNG) {
imagecolortransparent($process, imagecolorallocatealpha($process, 0, 0, 0, 127));
imagealphablending($process, false);
imagesavealpha($process, true);
}
imagecopyresampled($process, $this->resource, 0, 0, $x, $y, $w, $h, $w, $h);
if ($process == false) {
OC_Log::write('core', __METHOD__.'(): Error resampling process image '.$w.'x'.$h, OC_Log::ERROR);