增加圆角处理

ImageTool.php

@@ -48,6 +48,7 @@ class ImageTool
             default:
                 $resource = null;
         }
+        imagesavealpha($resource, true);
 
         return $resource;
     }
@@ -63,9 +64,8 @@ class ImageTool
     {
         $options = array_merge([
             'position' => [0, 0],
-            'pct'      => 100,
         ], $options);
-        imagecopymerge(
+        imagecopy(
             $resource,
             $addResource,
             $options['position'][0],
@@ -73,8 +73,7 @@ class ImageTool
             0,
             0,
             imagesx($addResource),
-            imagesy($addResource),
+            imagesy($addResource)
-            $options['pct']
         );
 
         return $resource;
@@ -157,6 +156,58 @@ class ImageTool
         return $targetResource;
     }
 
+    /**
+     * 图片圆角处理
+     * @param $resource
+     * @param int $size
+     */
+    public static function radius(&$resource, $size = 10)
+    {
+        $w = imagesx($resource);
+        $h = imagesy($resource);
+        if (empty($size)) {
+            $radius = min($w, $h) / 2;
+        } else {
+            $radius = $size / 2;
+        }
+        $img = imagecreatetruecolor($w, $h);
+        imagesavealpha($img, true);
+        $bg = imagecolorallocatealpha($img, 255, 255, 255, 127);
+        imagefill($img, 0, 0, $bg);
+        $r = $radius;
+        for ($x = 0; $x < $w; $x++) {
+            for ($y = 0; $y < $h; $y++) {
+                $rgbColor = imagecolorat($resource, $x, $y);
+                if (($x >= $radius && $x <= ($w - $radius)) || ($y >= $radius && $y <= ($h - $radius))) {
+                    imagesetpixel($img, $x, $y, $rgbColor);
+                } else {
+                    $yx = $r;
+                    $yy = $r;
+                    if (((($x - $yx) * ($x - $yx) + ($y - $yy) * ($y - $yy)) <= ($r * $r))) {
+                        imagesetpixel($img, $x, $y, $rgbColor);
+                    }
+                    $yx = $w - $r;
+                    $yy = $r;
+                    if (((($x - $yx) * ($x - $yx) + ($y - $yy) * ($y - $yy)) <= ($r * $r))) {
+                        imagesetpixel($img, $x, $y, $rgbColor);
+                    }
+                    $yx = $r;
+                    $yy = $h - $r;
+                    if (((($x - $yx) * ($x - $yx) + ($y - $yy) * ($y - $yy)) <= ($r * $r))) {
+                        imagesetpixel($img, $x, $y, $rgbColor);
+                    }
+                    $yx = $w - $r;
+                    $yy = $h - $r;
+                    if (((($x - $yx) * ($x - $yx) + ($y - $yy) * ($y - $yy)) <= ($r * $r))) {
+                        imagesetpixel($img, $x, $y, $rgbColor);
+                    }
+                }
+            }
+        }
+
+        $resource = $img;
+    }
+
     /**
      * 保存图片
      * @param $resource

main.php

@@ -8,6 +8,7 @@ $maskResource1 = ImageTool::createResourceFromFile('resource/mask.png');
 $maskResource2 = ImageTool::createResourceFromFile('resource/mask.jpg');
 $maskResource3 = ImageTool::createResourceFromFile('resource/base.jpg');
 
+ImageTool::radius($maskResource1, 40);
 // 合并图片
 ImageTool::merge($baseResource, $maskResource1, [
     'position' => [100, 100],