Continue development of es2.0 user shader support for renderscript.  This change cleans up ProgramVertex creation and adds support for passing input, output, and constant type info.
diff --git a/libs/rs/rsContext.h b/libs/rs/rsContext.h
index 426f921..790aca6 100644
--- a/libs/rs/rsContext.h
+++ b/libs/rs/rsContext.h
@@ -194,6 +194,15 @@
         uint32_t mMajorVersion;
         uint32_t mMinorVersion;
 
+        int32_t mMaxVaryingVectors;
+        int32_t mMaxTextureImageUnits;
+
+        int32_t mMaxFragmentTextureImageUnits;
+        int32_t mMaxFragmentUniformVectors;
+
+        int32_t mMaxVertexAttribs;
+        int32_t mMaxVertexUniformVectors;
+        int32_t mMaxVertexTextureUnits;
     } mGL;
 
     uint32_t mWidth;