diff --git a/project/src/common/ExternalInterface.cpp b/project/src/common/ExternalInterface.cpp
index ed6880059..41d4cab39 100644
--- a/project/src/common/ExternalInterface.cpp
+++ b/project/src/common/ExternalInterface.cpp
@@ -3691,6 +3691,67 @@ value lime_bitmap_data_dump_bits(value inSurface)
 DEFINE_PRIM(lime_bitmap_data_dump_bits,1);
 
 
+value lime_surface_get_base(value inSurface)
+{
+   Surface *surf;
+   if (AbstractToObject(inSurface,surf))
+   {
+      return alloc_int((intptr_t)surf->GetBase());
+   }
+   return alloc_null();
+}
+DEFINE_PRIM(lime_surface_get_base,1);
+
+
+value lime_surface_get_stride(value inSurface)
+{
+   Surface *surf;
+   if (AbstractToObject(inSurface,surf))
+   {
+      return alloc_int(surf->GetStride());
+   }
+   return alloc_null();
+}
+DEFINE_PRIM(lime_surface_get_stride,1);
+
+
+value lime_surface_begin_render(value inSurface, value inRect)
+{
+   Surface *surf;
+   if (AbstractToObject(inSurface,surf))
+   {
+      Rect rect;
+      FromValue(rect,inRect);
+      surf->BeginRender(rect);
+   }
+   return alloc_null();
+}
+DEFINE_PRIM(lime_surface_begin_render,2);
+
+
+value lime_surface_end_render(value inSurface)
+{
+   Surface *surf;
+   if (AbstractToObject(inSurface,surf))
+   {
+      surf->EndRender();
+   }
+   return alloc_null();
+}
+DEFINE_PRIM(lime_surface_end_render,1);
+
+
+/*value lime_surface_get_pixel_format(value inSurface)
+{
+   Surface *surf;
+   if (AbstractToObject(inSurface,surf))
+   {
+      return alloc_int(surf->GetStride());
+   }
+   return alloc_null();
+}*/
+
+
 
 // --- Video --------------------------------------------------
 
diff --git a/project/src/platform/android/JNI.cpp b/project/src/platform/android/JNI.cpp
index 5e87afbfe..2b20c6a6e 100644
--- a/project/src/platform/android/JNI.cpp
+++ b/project/src/platform/android/JNI.cpp
@@ -1187,7 +1187,7 @@ DEFINE_PRIM(lime_jni_call_member,3);
 value lime_jni_get_env()
 {
    JNIEnv *env = GetEnv();
-   return alloc_int((int)env);
+   return alloc_int((intptr_t)env);
 }
 DEFINE_PRIM(lime_jni_get_env,0);