1 files changed, 78 insertions, 0 deletions
diff --git a/src/server/internals/Delay.hpp b/src/server/internals/Delay.hpp
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+++ b/src/server/internals/Delay.hpp
@@ -0,0 +1,78 @@
+/* This file is part of Ingen.
+ * Copyright 2007-2011 David 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 INGEN_INTERNALS_DELAY_HPP
+#define INGEN_INTERNALS_DELAY_HPP
+
+#include <string>
+#include <math.h>
+#include "types.hpp"
+#include "NodeImpl.hpp"
+
+namespace Ingen {
+namespace Server {
+
+class InputPort;
+class OutputPort;
+class InternalPlugin;
+class BufferFactory;
+
+namespace Internals {
+
+class DelayNode : public NodeImpl
+{
+public:
+	DelayNode(
+			InternalPlugin*    plugin,
+			BufferFactory&     bufs,
+			const std::string& path,
+			bool               polyphonic,
+			PatchImpl*         parent,
+			SampleRate         srate);
+
+	~DelayNode();
+
+	void activate(BufferFactory& bufs);
+
+	void process(ProcessContext& context);
+
+	static InternalPlugin* internal_plugin(Shared::LV2URIMap& uris);
+
+	float delay_samples() const { return _delay_samples; }
+
+private:
+	inline float& buffer_at(long phase) const { return _buffer[phase & _buffer_mask]; }
+
+	InputPort*  _delay_port;
+	InputPort*  _in_port;
+	OutputPort* _out_port;
+
+	typedef long Phase;
+
+	float*   _buffer;
+	uint32_t _buffer_length;
+	uint32_t _buffer_mask;
+	Phase    _write_phase;
+	float    _last_delay_time;
+	float    _delay_samples;
+};
+
+} // namespace Server
+} // namespace Ingen
+} // namespace Internals
+
+#endif // INGEN_INTERNALS_DELAY_HPP