Added missing DuplexPot files

git-svn-id: http://svn.drobilla.net/lad/grauph@63 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 68 insertions, 0 deletions

diff --git a/src/libs/engine/DuplexPort.h b/src/libs/engine/DuplexPort.h
new file mode 100644
index 00000000..1abf6a4d
--- /dev/null
+++ b/src/libs/engine/DuplexPort.h
@@ -0,0 +1,68 @@
+/* This file is part of Om.  Copyright (C) 2006 Dave Robillard.
+ * 
+ * Om is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Om is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef DUPLEXPORT_H
+#define DUPLEXPORT_H
+
+#include <string>
+#include "types.h"
+#include "Array.h"
+#include "Buffer.h"
+#include "InputPort.h"
+#include "OutputPort.h"
+using std::string;
+
+namespace Om {
+	
+class MidiMessage;
+class Node;
+
+
+/** A duplex port (which is both an InputPort and an OutputPort)
+ *
+ * This is used for Patch ports, since they need to appear as both an input
+ * and an output port based on context.  Eg. a patch output appears as an
+ * input inside the patch, so nodes inside the patch can feed it data.
+ *
+ * \ingroup engine
+ */
+template <typename T>
+class DuplexPort : public InputPort<T>, public OutputPort<T>
+{
+public:
+	DuplexPort(Node* parent, const string& name, size_t index, size_t poly, DataType type, size_t buffer_size, bool is_output);
+	virtual ~DuplexPort() {}
+
+	virtual void prepare_buffers(size_t nframes) {}
+	
+	virtual bool is_input()  const { return !_is_output; }
+	virtual bool is_output() const { return _is_output; }
+
+protected:
+	// Prevent copies (undefined)
+	DuplexPort(const DuplexPort<T>& copy);
+	DuplexPort& operator=(const Port&);
+
+	bool _is_output;
+};
+
+
+template class DuplexPort<sample>;
+template class DuplexPort<MidiMessage>;
+
+} // namespace Om
+
+#endif // DUPLEXPORT_H