Add getPointer for USAGE_SHARED allocations.

Change-Id: I13a2af09bbbeec6cc6131b935979ac21c02820be
diff --git a/cpp/rsDispatch.h b/cpp/rsDispatch.h
index 0bd1283..ca708ad 100644
--- a/cpp/rsDispatch.h
+++ b/cpp/rsDispatch.h
@@ -85,6 +85,7 @@
 typedef void (*ScriptGroupExecuteFnPtr) (RsContext, RsScriptGroup);
 typedef void (*AllocationIoSendFnPtr) (RsContext, RsAllocation);
 typedef void (*AllocationIoReceiveFnPtr) (RsContext, RsAllocation);
+typedef void * (*AllocationGetPointerFnPtr) (RsContext, RsAllocation, uint32_t lod, RsAllocationCubemapFace face, uint32_t z, uint32_t array, size_t *stride);
 
 typedef struct {
     // inserted by hand from rs.h
@@ -156,6 +157,7 @@
     ScriptGroupExecuteFnPtr ScriptGroupExecute;
     AllocationIoSendFnPtr AllocationIoSend;
     AllocationIoReceiveFnPtr AllocationIoReceive;
+    AllocationGetPointerFnPtr AllocationGetPointer;
 } dispatchTable;
 
 #endif