1 files changed, 76 insertions, 0 deletions
diff --git a/libs/surfaces/maschine2/m2device.h b/libs/surfaces/maschine2/m2device.h
new file mode 100644
index 0000000000..40349ab152
--- /dev/null
+++ b/libs/surfaces/maschine2/m2device.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2016 Robin Gareus <robin@gareus.org>
+ *
+ * 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, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef _ardour_surfaces_maschine2hardware_h_
+#define _ardour_surfaces_maschine2hardware_h_
+
+#include <hidapi.h>
+#include <cairomm/refptr.h>
+#include <cairomm/surface.h>
+#include "pbd/signals.h"
+
+namespace ArdourSurface {
+
+class M2Contols;
+
+/** Abstraction for various variants:
+ *  - NI Maschine Mikro
+ *  - NI Maschine
+ *  - NI Maschine Studio
+ */
+
+class M2Device
+{
+	public:
+		M2Device ()
+			: _splashcnt (0)
+			, _blink_counter (0)
+			, _blink_shade (0.f)
+			{}
+		virtual ~M2Device () {}
+
+		virtual void clear (bool splash = false) {
+			if (splash) {
+				_splashcnt = 0;
+			} else {
+				_splashcnt = _splashtime;
+			}
+			_blink_counter = 0;
+			_blink_shade = 0.f;
+		}
+
+		virtual void read (hid_device*, M2Contols*) = 0;
+		virtual void write (hid_device*, M2Contols*) = 0;
+		virtual Cairo::RefPtr<Cairo::ImageSurface> surface () = 0;
+
+		PBD::Signal0<bool> vblank;
+
+	protected:
+		void bump_blink () {
+			_blink_counter = (_blink_counter + 1) % 12;
+			_blink_shade = fabsf (1.f - _blink_counter / 6.f);
+		}
+
+		uint32_t _splashcnt;
+		static const uint32_t _splashtime = 25 * 3;
+		unsigned int _blink_counter;
+		float        _blink_shade;
+};
+
+} /* namespace */
+#endif /* _ardour_surfaces_maschine2_h_*/