added checks for imageantialias function existence

php-imagine · Feb 27, 2011 · f80c68a · f80c68a
1 parent 7139ab9
commit f80c68a
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Showing 2 changed files with 34 additions and 14 deletions.
diff --git a/lib/Imagine/Gd/Image.php b/lib/Imagine/Gd/Image.php
@@ -67,11 +67,14 @@ final public function copy()
         }
 
         if (false === imagealphablending($copy, false) ||
-            false === imagesavealpha($copy, true) ||
-            false === imageantialias($copy, true)) {
+            false === imagesavealpha($copy, true)) {
             throw new RuntimeException('Image copy operation failed');
         }
 
+        if (function_exists('imageantialias')) {
+            imageantialias($copy, true);
+        }
+
         if (false === imagecopymerge($copy, $this->resource, 0, 0, 0,
             0, $size->getWidth(), $size->getHeight(), 100)) {
             throw new RuntimeException('Image copy operation failed');
@@ -101,7 +104,10 @@ final public function crop(PointInterface $start, BoxInterface $size)
 
         imagealphablending($dest, false);
         imagesavealpha($dest, true);
-        imageantialias($dest, true);
+
+        if (function_exists('imageantialias')) {
+            imageantialias($dest, true);
+        }
 
         if (false === imagecopymerge($dest, $this->resource, 0, 0,
             $start->getX(), $start->getY(), $width, $height, 100)) {
@@ -165,7 +171,10 @@ final public function resize(BoxInterface $size)
 
         imagealphablending($dest, false);
         imagesavealpha($dest, true);
-        imageantialias($dest, true);
+
+        if (function_exists('imageantialias')) {
+            imageantialias($dest, true);
+        }
 
         if (false === imagecopyresampled($dest, $this->resource, 0, 0, 0, 0,
             $width, $height, imagesx($this->resource), imagesy($this->resource)
@@ -258,7 +267,10 @@ final public function flipHorizontally()
 
         imagealphablending($dest, false);
         imagesavealpha($dest, true);
-        imageantialias($dest, true);
+
+        if (function_exists('imageantialias')) {
+            imageantialias($dest, true);
+        }
 
         for ($i = 0; $i < $width; $i++) {
             if (false === imagecopymerge($dest, $this->resource, $i, 0,
@@ -286,7 +298,10 @@ final public function flipVertically()
 
         imagealphablending($dest, false);
         imagesavealpha($dest, true);
-        imageantialias($dest, true);
+
+        if (function_exists('imageantialias')) {
+            imageantialias($dest, true);
+        }
 
         for ($i = 0; $i < $height; $i++) {
             if (false === imagecopymerge($dest, $this->resource, 0, $i,

diff --git a/lib/Imagine/Gd/Imagine.php b/lib/Imagine/Gd/Imagine.php
@@ -68,13 +68,16 @@ public function create(BoxInterface $size, Color $color = null)
         $color = $color ? $color : new Color('fff');
 
         if (false === imagealphablending($resource, false) ||
-            false === imagesavealpha($resource, true) ||
-            false === imageantialias($resource, true)) {
+            false === imagesavealpha($resource, true)) {
             throw new RuntimeException(
                 'Could not set alphablending, savealpha and antialias values'
             );
         }
 
+        if (function_exists('imageantialias')) {
+            imageantialias($resource, true);
+        }
+
         $color = imagecolorallocatealpha(
             $resource, $color->getRed(), $color->getGreen(), $color->getBlue(),
             round(127 * $color->getAlpha() / 100)
@@ -131,14 +134,15 @@ public function open($path)
         }
 
         if (false === imagealphablending($resource, false) ||
-            false === imagesavealpha($resource, true) ||
-            false === imageantialias($resource, true)) {
+            false === imagesavealpha($resource, true)) {
             throw new RuntimeException(
                 'Could not set alphablending, savealpha and antialias values'
             );
         }
 
-        imageantialias($resource, true);
+        if (function_exists('imageantialias')) {
+            imageantialias($resource, true);
+        }
 
         return new Image($resource);
     }
@@ -156,14 +160,15 @@ public function load($string)
         }
 
         if (false === imagealphablending($resource, false) ||
-            false === imagesavealpha($resource, true) ||
-            false === imageantialias($resource, true)) {
+            false === imagesavealpha($resource, true)) {
             throw new RuntimeException(
                 'Could not set alphablending, savealpha and antialias values'
             );
         }
 
-        imageantialias($resource, true);
+        if (function_exists('imageantialias')) {
+            imageantialias($resource, true);
+        }
 
         return new Image($resource);
     }