ldt/partstock
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fix alpha channel handling for png images

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This commit is contained in:
Thomas Weinhold 2020-09-27 00:57:02 +02:00
commit 236539c43d
1 changed files with 4 additions and 2 deletions
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6
part_picture.php
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@ -66,9 +66,11 @@ if ($mime_type == 'image/jpeg') {
$output_image = imagecreatetruecolor($output_width, $output_height); $output_image = imagecreatetruecolor($output_width, $output_height);
} else if ($mime_type == 'image/png') { } else if ($mime_type == 'image/png') {
$source_image = imagecreatefrompng($source_path); $source_image = imagecreatefrompng($source_path);
imagealphablending($source_image, true); imagealphablending($source_image, false);
imagesavealpha($source_image, true); imagesavealpha($source_image, true);
$output_image = imagecreate($output_width, $output_height); $output_image = imagecreatetruecolor($output_width, $output_height);
imagealphablending($output_image, false);
imagesavealpha($output_image, true);
} else { } else {
ErrorLog("Unkown mime type: " . $mime_type . "!"); ErrorLog("Unkown mime type: " . $mime_type . "!");
exit("Can't handle requested mime-type."); exit("Can't handle requested mime-type.");