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authorDavid Robillard <d@drobilla.net>2007-07-24 19:26:47 +0000
committerDavid Robillard <d@drobilla.net>2007-07-24 19:26:47 +0000
commitbb1c49dfa484db080938cff6f8f70167c9026a1c (patch)
tree6f6382fcbfddfead6d5c32d19977aed8020d32e4 /src/libs/engine/Driver.hpp
parentf0f64e4425acfb8b8633a47faa70f87fc32a4399 (diff)
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Consistently rename all C++ files .cpp/.hpp.
Fix (some) inclusion guard names to not clash with other libs. git-svn-id: http://svn.drobilla.net/lad/ingen@613 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'src/libs/engine/Driver.hpp')
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diff --git a/src/libs/engine/Driver.hpp b/src/libs/engine/Driver.hpp
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+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ *
+ * Ingen 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.
+ *
+ * Ingen 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.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef DRIVER_H
+#define DRIVER_H
+
+#include <string>
+#include <boost/utility.hpp>
+#include <raul/Path.hpp>
+#include "DataType.hpp"
+
+namespace Ingen {
+
+class DuplexPort;
+
+
+/** Representation of a "system" (eg outside Ingen) port.
+ *
+ * This is the class through which the rest of the engine manages everything
+ * related to driver ports. Derived classes are expected to have a pointer to
+ * their driver (to be able to perform the operation necessary).
+ *
+ * \ingroup engine
+ */
+class DriverPort : boost::noncopyable {
+public:
+ virtual ~DriverPort() {}
+
+ /** Set the name of the system port */
+ virtual void set_name(const std::string& name) = 0;
+
+ bool is_input() { return _is_input; }
+
+protected:
+ /** is_input from the perspective outside of ingen */
+ DriverPort(bool is_input) : _is_input(is_input) {}
+
+ bool _is_input;
+};
+
+
+/** Driver abstract base class.
+ *
+ * A Driver is, from the perspective of GraphObjects (nodes, patches, ports) an
+ * interface for managing system ports. An implementation of Driver basically
+ * needs to manage DriverPorts, and handle writing/reading data to/from them.
+ *
+ * \ingroup engine
+ */
+class Driver : boost::noncopyable
+{
+public:
+ Driver(DataType type)
+ : _type(type)
+ {}
+
+ virtual ~Driver() {}
+
+ virtual void activate() = 0;
+ virtual void deactivate() = 0;
+
+ virtual bool is_activated() const = 0;
+
+ /** Create a port ready to be inserted with add_input (non realtime).
+ *
+ * May return NULL if the Driver can not drive the port for some reason.
+ */
+ virtual DriverPort* create_port(DuplexPort* patch_port) = 0;
+
+ virtual void add_port(DriverPort* port) = 0;
+ virtual DriverPort* remove_port(const Raul::Path& path) = 0;
+
+protected:
+ DataType _type;
+};
+
+
+#if 0
+/** Dummy audio driver.
+ *
+ * Not abstract, all functions are dummies. One of these will be allocated and
+ * "used" if no working AUDIO driver is loaded. (Doing it this way as opposed to
+ * just making Driver have dummy functions makes sure any existing Driver
+ * derived class actually implements the required functions).
+ *
+ * \ingroup engine
+ */
+class DummyDriver : public Driver
+{
+public:
+ ~DummyDriver() {}
+
+ void activate() {}
+ void deactivate() {}
+
+ void enable() {}
+ void disable() {}
+
+ DriverPort* create_port(TypedPort<Sample>* patch_port) { return NULL; }
+};
+#endif
+
+
+} // namespace Ingen
+
+#endif // DRIVER_H