comparison vamp/vamp.h @ 160:e841e2365b48

* Some work on symbol visibility in the shared object

     /** Release a feature set returned from process or getRemainingFeatures. */
     void (*releaseFeatureSet)(VampFeatureList *);
 
 } VampPluginDescriptor;
 
+
+#ifdef __GNUC__
+#pragma GCC visibility push(default)
+#endif
+#ifdef __MSVC__
+__declspec(dllexport)
+#endif
+
+
 /** Get the descriptor for a given plugin index in this library.
     Return NULL if the index is outside the range of valid indices for
     this plugin library.
 
     The hostApiVersion argument tells the library code the highest

     supported by the library that is no higher than that supported by
     the host.  Provided the descriptor has the correct vampApiVersion
     field for its actual compatibility level, the host should be able
     to do the right thing with it: use it if possible, discard it
     otherwise.
+
+    This is the only symbol that a Vamp plugin actually needs to
+    export from its shared object; all others can be hidden.  See the
+    accompanying documentation for notes on how to achieve this with
+    certain compilers.
 */
 const VampPluginDescriptor *vampGetPluginDescriptor
     (unsigned int hostApiVersion, unsigned int index);
 
+
+#ifdef __GNUC__
+#pragma GCC visibility pop
+#endif
+
 /** Function pointer type for vampGetPluginDescriptor. */
 typedef const VampPluginDescriptor *(*VampGetPluginDescriptorFunction)
     (unsigned int, unsigned int);
 
 #ifdef __cplusplus