Index: /branches/end_stage/ippTools/src/pxtools.h
===================================================================
--- /branches/end_stage/ippTools/src/pxtools.h	(revision 16084)
+++ /branches/end_stage/ippTools/src/pxtools.h	(revision 16085)
@@ -63,3 +63,100 @@
 }
 
+#define PXOPT_LOOKUP_STR(var, md, key, required, ret) \
+psString var; \
+{ \
+    bool status; \
+ \
+    var = psMetadataLookupStr(&status, md, key); \
+    if (!status) { \
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for %s", key); \
+        return ret; \
+    } \
+ \
+    if (required && (!var)) { \
+        psError(PS_ERR_UNKNOWN, true, "%s is required", key); \
+        return ret; \
+    } \
+}
+
+#define PXOPT_LOOKUP_F32(var, md, key, required, ret) \
+psF32 var; \
+{ \
+    bool status; \
+ \
+    var = psMetadataLookupF32(&status, md, key); \
+    if (!status) { \
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for %s", key); \
+        return ret; \
+    } \
+ \
+    if (required && isnan(var)) { \
+        psError(PS_ERR_UNKNOWN, true, "%s is required", key); \
+        return ret; \
+    } \
+}
+
+#define PXOPT_LOOKUP_F64(var, md, key, required, ret) \
+psF64 var; \
+{ \
+    bool status; \
+ \
+    var = psMetadataLookupF64(&status, md, key); \
+    if (!status) { \
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for %s", key); \
+        return ret; \
+    } \
+ \
+    if (required && isnan(var)) { \
+        psError(PS_ERR_UNKNOWN, true, "%s is required", key); \
+        return ret; \
+    } \
+}
+
+#define PXOPT_LOOKUP_U64(var, md, key, required, ret) \
+psU64 var; \
+{ \
+    bool status; \
+ \
+    var = psMetadataLookupU64(&status, md, key); \
+    if (!status) { \
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for %s", key); \
+        return ret; \
+    } \
+ \
+    if (required && (var != UINT64_MAX)) { \
+        psError(PS_ERR_UNKNOWN, true, "%s is required", key); \
+        return ret; \
+    } \
+}
+
+#define PXOPT_LOOKUP_S16(var, md, key, required, ret) \
+psS16 var; \
+{ \
+    bool status; \
+ \
+    var = psMetadataLookupS16(&status, md, key); \
+    if (!status) { \
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for %s", key); \
+        return ret; \
+    } \
+ \
+    if (required && (var != INT16_MAX)) { \
+        psError(PS_ERR_UNKNOWN, true, "%s is required", key); \
+        return ret; \
+    } \
+}
+
+#define PXOPT_LOOKUP_BOOL(var, md, key, ret) \
+bool var; \
+{ \
+    bool status; \
+ \
+    var = psMetadataLookupBool(&status, md, key); \
+    if (!status) { \
+        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for %s", key); \
+        return ret; \
+    } \
+}
+
 #endif // PXTOOLS_H