Create runtime stubs for compute driver.

Change-Id: I8e0250a642844a2ad3ff6efc38e385445b7da032
diff --git a/RenderScriptDefines.h b/RenderScriptDefines.h
index bb275b5..308437d 100644
--- a/RenderScriptDefines.h
+++ b/RenderScriptDefines.h
@@ -52,6 +52,18 @@
 
 typedef void (* RsBitmapCallback_t)(void *);
 
+typedef struct {
+    float m[16];
+} rs_matrix4x4;
+
+typedef struct {
+    float m[9];
+} rs_matrix3x3;
+
+typedef struct {
+    float m[4];
+} rs_matrix2x2;
+
 enum RsDeviceParam {
     RS_DEVICE_PARAM_FORCE_SOFTWARE_GL,
     RS_DEVICE_PARAM_COUNT