rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 106 insertions, 0 deletions

diff --git a/libs/ardour/ardour/base_audio_port.h b/libs/ardour/ardour/base_audio_port.h
new file mode 100644
index 0000000000..791928fa03
--- /dev/null
+++ b/libs/ardour/ardour/base_audio_port.h
@@ -0,0 +1,106 @@
+/*
+    Copyright (C) 2002 Paul Davis 
+
+    This program 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.
+
+    This program 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 more 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id: port.h 712 2006-07-28 01:08:57Z drobilla $
+*/
+
+#ifndef __ardour_base_audio_port_h__
+#define __ardour_base_audio_port_h__
+
+#include <string>
+
+#include <sigc++/signal.h>
+
+#include <pbd/failed_constructor.h>
+
+#include <ardour/ardour.h>
+#include <ardour/port.h>
+#include <ardour/audio_buffer.h>
+
+namespace ARDOUR {
+
+class AudioEngine;
+
+class BaseAudioPort : public virtual Port {
+  public:
+	virtual ~BaseAudioPort();
+
+	DataType type() const { return DataType::AUDIO; }
+
+	virtual Buffer& get_buffer () {
+		assert (_buffer);
+		return *_buffer;
+	}
+
+	virtual AudioBuffer& get_audio_buffer() {
+		assert (_buffer);
+		return *_buffer;
+	}
+	
+	void reset ();
+
+	void reset_overs () {
+		/* XXX NOT THREAD SAFE */
+		_short_overs = 0;
+		_long_overs = 0;
+		_overlen = 0;
+	}
+
+	void reset_peak_meter () {
+		/* XXX NOT THREAD SAFE */
+		_peak = 0;
+	}
+	
+	void reset_meters () {
+		/* XXX NOT THREAD SAFE */
+		reset_peak_meter ();
+		reset_overs ();
+	}
+
+	float  peak_db() const { return _peak_db; }
+	Sample peak()    const { return _peak; }
+
+	uint32_t short_overs () const { return _short_overs; }
+	uint32_t long_overs ()  const { return _long_overs; }
+	
+	static void set_short_over_length (nframes_t);
+	static void set_long_over_length (nframes_t);
+
+	void set_mixdown_function (void (*func)(const std::set<Port*>&, AudioBuffer*, nframes_t, nframes_t, bool));
+
+  protected:
+	BaseAudioPort (const std::string& name, Flags flags);
+
+	AudioBuffer* _buffer;
+	nframes_t    _overlen;
+	Sample       _peak;
+	float        _peak_db;
+	uint32_t     _short_overs;
+	uint32_t     _long_overs;
+	bool         _own_buffer;
+
+	void (*_mixdown)(const std::set<Port*>&, AudioBuffer*, nframes_t, nframes_t, bool);
+
+	static void default_mixdown (const std::set<Port*>&, AudioBuffer*, nframes_t, nframes_t, bool);
+	
+	static nframes_t _long_over_length;
+	static nframes_t _short_over_length;
+};
+ 
+} // namespace ARDOUR
+
+#endif /* __ardour_base_audio_port_h__ */