diff --git a/src/SDL2.cs b/src/SDL2.cs
index b674c90..cec969a 100644
--- a/src/SDL2.cs
+++ b/src/SDL2.cs
@@ -1973,6 +1973,14 @@ namespace SDL2
 			out int h
 		);
 
+        /* renderer refers to an SDL_Renderer* */
+        [DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
+        public static extern void SDL_RenderGetScale(
+            IntPtr renderer,
+            out float scaleX,
+            out float scaleY
+        );
+
 		/* renderer refers to an SDL_Renderer* */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern int SDL_RenderGetViewport(
@@ -2018,6 +2026,14 @@ namespace SDL2
 			int h
 		);
 
+        /* renderer refers to an SDL_Renderer* */
+        [DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
+        public static extern int SDL_RenderSetScale(
+            IntPtr renderer,
+            float scaleX,
+            float scaleY
+        );
+
 		/* renderer refers to an SDL_Renderer* */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern int SDL_RenderSetViewport(