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Added fastimagecopyresampled

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This commit is contained in:
Tobias Reich 2014-04-28 11:47:30 +02:00
parent b55589eea3
commit 119d674002
2 changed files with 34 additions and 2 deletions
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4
php/modules/Photo.php
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@ -216,12 +216,12 @@ class Photo extends Module {
}
# Create thumb
imagecopyresampled($thumb, $sourceImg, 0, 0, $startWidth, $startHeight, $width, $height, $newSize, $newSize);
fastimagecopyresampled($thumb, $sourceImg, 0, 0, $startWidth, $startHeight, $width, $height, $newSize, $newSize);
imagejpeg($thumb, $newUrl, $this->settings['thumbQuality']);
imagedestroy($thumb);
# Create retina thumb
imagecopyresampled($thumb2x, $sourceImg, 0, 0, $startWidth, $startHeight, $width*2, $height*2, $newSize, $newSize);
fastimagecopyresampled($thumb2x, $sourceImg, 0, 0, $startWidth, $startHeight, $width*2, $height*2, $newSize, $newSize);
imagejpeg($thumb2x, $newUrl2x, $this->settings['thumbQuality']);
imagedestroy($thumb2x);

32
php/modules/misc.php
View File

@ -108,4 +108,36 @@ function get_hashed_password($password) {
}
function fastimagecopyresampled(&$dst_image, $src_image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h, $quality = 4) {
###
# Plug-and-Play fastimagecopyresampled function replaces much slower imagecopyresampled.
# Just include this function and change all "imagecopyresampled" references to "fastimagecopyresampled".
# Typically from 30 to 60 times faster when reducing high resolution images down to thumbnail size using the default quality setting.
# Author: Tim Eckel - Date: 09/07/07 - Version: 1.1 - Project: FreeRingers.net - Freely distributable - These comments must remain.
#
# Optional "quality" parameter (defaults is 3). Fractional values are allowed, for example 1.5. Must be greater than zero.
# Between 0 and 1 = Fast, but mosaic results, closer to 0 increases the mosaic effect.
# 1 = Up to 350 times faster. Poor results, looks very similar to imagecopyresized.
# 2 = Up to 95 times faster. Images appear a little sharp, some prefer this over a quality of 3.
# 3 = Up to 60 times faster. Will give high quality smooth results very close to imagecopyresampled, just faster.
# 4 = Up to 25 times faster. Almost identical to imagecopyresampled for most images.
# 5 = No speedup. Just uses imagecopyresampled, no advantage over imagecopyresampled.
###
if (empty($src_image) || empty($dst_image) || $quality <= 0) { return false; }
if ($quality < 5 && (($dst_w * $quality) < $src_w || ($dst_h * $quality) < $src_h)) {
$temp = imagecreatetruecolor($dst_w * $quality + 1, $dst_h * $quality + 1);
imagecopyresized($temp, $src_image, 0, 0, $src_x, $src_y, $dst_w * $quality + 1, $dst_h * $quality + 1, $src_w, $src_h);
imagecopyresampled($dst_image, $temp, $dst_x, $dst_y, 0, 0, $dst_w, $dst_h, $dst_w * $quality, $dst_h * $quality);
imagedestroy($temp);
} else imagecopyresampled($dst_image, $src_image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
return true;
}
?>