Custom thubmanil image type (extension)

2 files changed, 37 insertions, 10 deletions

diff --git a/inc/config.php b/inc/config.php
index 6b7a7e8c..9493419f 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -153,6 +153,12 @@
 	$config['thumb_width']	= 255;
 	$config['thumb_height']	= 255;
 	
+	// Thumbnail extension, empty for inherited (png recommended)
+	$config['thumb_ext'] = '';
+	
+	// Thumbnail quality (compression level), from 0 to 9
+	$config['thumb_quality'] = 7;
+	
 	// When a thumbnailed image is going to be the same (in dimension), just copy the entire file and use that as a thumbnail instead of resizing/redrawing
 	$config['minimum_copy_resize'] = true;
 	
@@ -205,8 +211,8 @@
 	// These can be URLs OR base64 (data URI scheme)
 	//$config['image_sticky']		= $config['dir']['static'] . 'sticky.gif';
 	//$config['image_locked']		= $config['dir']['static'] . 'locked.gif';
-	//$config['image_deleted']	= $config['dir']['static'] . 'deleted.png';
-	//$config['image_zip']		= $config['dir']['static'] . 'zip.png';
+	//$config['image_deleted']	= $config['dir']['static'] . 'deleted.';
+	//$config['image_zip']		= $config['dir']['static'] . 'zip.';
 	
 	
 	// If you want to put images and other dynamic-static stuff on another (preferably cookieless) domain, you can use this:
@@ -511,7 +517,7 @@
 	$config['ie_mime_type_detection'] = '/<(?:body|head|html|img|plaintext|pre|script|table|title|a href|channel|scriptlet)/';
 	
 	// Allowed file extensions
-	$config['allowed_ext'] = Array('jpg', 'jpeg', 'bmp', 'gif', 'png');
+	$config['allowed_ext'] = Array('jpg', 'jpeg', 'bmp', 'gif', '');
 	
 	// The names on the post buttons. (On most imageboards, these are both "Post".)
 	$config['button_newtopic']	= 'New Topic';
diff --git a/inc/functions.php b/inc/functions.php
index 07777b5d..b99788c5 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1361,7 +1361,7 @@
 		return $image;
 	}
 
-	function resize($src, $width, $height, $destination_pic, $max_width, $max_height) {
+	function resize($src, $width, $height, $destination_pic, $max_width, $max_height, $ext) {	
 		$return = Array();
 
 		$x_ratio = $max_width / $width;
@@ -1382,13 +1382,34 @@
 		$return['height'] = $tn_height;
 
 		$tmp = imagecreatetruecolor($tn_width, $tn_height);
-		imagecolortransparent($tmp, imagecolorallocatealpha($tmp, 0, 0, 0, 0));
-		imagealphablending($tmp, false);
-		imagesavealpha($tmp, true);
-
+		
+		if($ext == 'png' || $ext == 'gif') {
+			imagecolortransparent($tmp, imagecolorallocatealpha($tmp, 0, 0, 0, 0));
+			imagesavealpha($tmp, true);
+		}
+		if($ext == 'png')
+			imagealphablending($tmp, false);
+		
 		imagecopyresampled($tmp, $src, 0, 0, 0, 0, $tn_width, $tn_height, $width, $height);
-
-		imagepng($tmp, $destination_pic, 4);
+		
+		switch($ext) {
+			case 'jpg':
+			case 'jpeg':
+				imagejpeg($tmp, $destination_pic);
+				break;
+			case 'png':
+				imagepng($tmp, $destination_pic, $config['thumb_quality']);
+				break;
+			case 'gif':
+				imagegif($tmp, $destination_pic);
+				break;
+			case 'bmp':
+				imagebmp($tmp, $destination_pic);
+				break;
+			default:
+				error('Unknwon file extension.');
+		}
+		
 		imagedestroy($src);
 		imagedestroy($tmp);