first version

kirby/src/Image/Darkroom/GdLib.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Kirby\Image\Darkroom;
+
+ini_set('memory_limit', '512M');
+
+use Exception;
+use claviska\SimpleImage;
+use Kirby\Image\Darkroom;
+
+class GdLib extends Darkroom
+{
+    public function process(string $file, array $options = []): array
+    {
+        $options = $this->preprocess($file, $options);
+
+        $image = new SimpleImage();
+        $image->fromFile($file);
+
+        $image = $this->resize($image, $options);
+        $image = $this->autoOrient($image, $options);
+        $image = $this->blur($image, $options);
+        $image = $this->grayscale($image, $options);
+
+        $image->toFile($file, null, $options['quality']);
+
+        return $options;
+    }
+
+    protected function autoOrient(SimpleImage $image, $options)
+    {
+        if ($options['autoOrient'] === false) {
+            return $image;
+        }
+
+        return $image->autoOrient();
+    }
+
+    protected function resize(SimpleImage $image, array $options)
+    {
+        if ($options['crop'] === false) {
+            return $image->resize($options['width'], $options['height']);
+        }
+
+        return $image->thumbnail($options['width'], $options['height'] ?? $options['width'], $options['crop']);
+    }
+
+    protected function blur(SimpleImage $image, array $options)
+    {
+        if ($options['blur'] === false) {
+            return $image;
+        }
+
+        return $image->blur('gaussian', (int)$options['blur']);
+    }
+
+    protected function grayscale(SimpleImage $image, array $options)
+    {
+        if ($options['grayscale'] === false) {
+            return $image;
+        }
+
+        return $image->desaturate();
+    }
+}