From 062241ca829244d5eaad0a84f279e03c8dced563 Mon Sep 17 00:00:00 2001
From: Ethan Lee <flibitijibibo@gmail.com>
Date: Mon, 18 Nov 2013 11:28:32 -0500
Subject: [PATCH] SDL2_image has SavePNG, woohoo!

---
 src/SDL2_image.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/SDL2_image.cs b/src/SDL2_image.cs
index 5df4bac..806b0b0 100644
--- a/src/SDL2_image.cs
+++ b/src/SDL2_image.cs
@@ -112,6 +112,14 @@ namespace SDL2
 				string[] xpm
 		);
 
+		/* surface refers to an SDL_Surface* */
+		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
+		public static extern int IMG_SavePNG(
+			IntPtr surface,
+			[In()] [MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(LPUtf8StrMarshaler))]
+				string file
+		);
+
 		#endregion
 	}
 }