Factor out sequencing related things into an independant new library: "evoral".

Anything related to the storage of events/values over a range of time lives in evoral.
This includes MidiModel (Evoral::Sequence) and automation data (AutomationList (Evoral::ControlList),
	Automatable (Evoral::ControlSet), etc).
libs/evoral synced with http://svn.drobilla.net/lad/trunk/evoral r1511.


git-svn-id: svn://localhost/ardour2/branches/3.0@3754 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 58 insertions, 0 deletions

diff --git a/libs/evoral/evoral/Curve.hpp b/libs/evoral/evoral/Curve.hpp
new file mode 100644
index 0000000000..7cfc6bcb69
--- /dev/null
+++ b/libs/evoral/evoral/Curve.hpp
@@ -0,0 +1,58 @@
+/* This file is part of Evoral.
+ * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * Copyright (C) 2000-2008 Paul Davis
+ * 
+ * Evoral 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.
+ * 
+ * Evoral 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 EVORAL_CURVE_HPP
+#define EVORAL_CURVE_HPP
+
+#include <inttypes.h>
+#include <boost/utility.hpp>
+
+namespace Evoral {
+
+class ControlList;
+
+class Curve : public boost::noncopyable
+{
+public:
+	Curve (const ControlList& cl);
+
+	bool rt_safe_get_vector (double x0, double x1, float *arg, int32_t veclen);
+	void get_vector (double x0, double x1, float *arg, int32_t veclen);
+
+	void solve ();
+	
+	void mark_dirty() const { _dirty = true; }
+
+private:
+	double unlocked_eval (double where);
+	double multipoint_eval (double x);
+
+	void _get_vector (double x0, double x1, float *arg, int32_t veclen);
+
+	mutable bool       _dirty;
+	const ControlList& _list;
+};
+
+} // namespace Evoral
+
+extern "C" {
+	void curve_get_vector_from_c (void *arg, double, double, float*, int32_t);
+}
+
+#endif // EVORAL_CURVE_HPP
+