changeset 130:225f0eb33154

Add simpler export macros header

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/PiperExport.h	Thu Nov 10 18:54:11 2016 +0000
@@ -0,0 +1,68 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Piper Vamp JSON Adapter
+
+    Centre for Digital Music, Queen Mary, University of London.
+    Copyright 2015-2016 QMUL.
+  
+    Permission is hereby granted, free of charge, to any person
+    obtaining a copy of this software and associated documentation
+    files (the "Software"), to deal in the Software without
+    restriction, including without limitation the rights to use, copy,
+    modify, merge, publish, distribute, sublicense, and/or sell copies
+    of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+    Except as contained in this notice, the names of the Centre for
+    Digital Music; Queen Mary, University of London; and Chris Cannam
+    shall not be used in advertising or otherwise to promote the sale,
+    use or other dealings in this Software without prior written
+    authorization.
+*/
+
+#ifndef PIPER_EXPORT_H
+#define PIPER_EXPORT_H
+
+#ifdef _VAMP_IN_PLUGINSDK
+#error You must include PiperExport.h before any other files that use the Vamp SDK
+#endif
+
+// Include all the Piper headers that an export program may need here:
+// for a simple Vamp plugin library, this one should be the only Piper
+// #include
+
+#include "PiperAdapter.h"
+#include "PiperPluginLibrary.h"
+
+// Convenience macros for the usual case with a static
+// PiperPluginLibrary object to export C wrappers for
+
+#define PIPER_EXPORT_LIBRARY(library)					\
+    extern "C" {							\
+	const char *piperRequestJson(const char *request) {		\
+	    return library.requestJson(request);			\
+	}								\
+	const char *piperProcessRaw(int handle,				\
+				    const float *const *inputBuffers,	\
+				    int sec,				\
+				    int nsec) {				\
+	    return library.processRaw(handle, inputBuffers, sec, nsec);	\
+	}								\
+	void piperFreeJson(const char *json) {				\
+	    return library.freeJson(json);				\
+	}								\
+    }
+
+#endif