diff --git a/src/gfx/surface.rs b/src/gfx/surface.rs
new file mode 100644
index 00000000000..1702b62d9a4
--- /dev/null
+++ b/src/gfx/surface.rs
@@ -0,0 +1,9 @@
+enum format {
+    fo_rgba_8888;
+    // TODO: RGB 565
+}
+
+type surface = {
+    format: format
+};
+
diff --git a/src/image/encode/tga.rs b/src/image/encode/tga.rs
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/src/servo.rc b/src/servo.rc
index 6a870e63b9b..ff2b9e8cddd 100755
--- a/src/servo.rc
+++ b/src/servo.rc
@@ -13,6 +13,16 @@ mod dom {
     mod rcu;
 }
 
+mod gfx {
+    mod surface;
+}
+
+mod image {
+    mod encode {
+        mod tga;
+    }
+}
+
 mod layout {
     mod base;
 }