Overhaul plugin module and add variable run-length ladspa + dssi processing. Please see ChangeLog.

1 files changed, 64 insertions, 0 deletions

diff --git a/muse2/muse/controlfifo.h b/muse2/muse/controlfifo.h
new file mode 100644
index 00000000..a0b6bfd0
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+++ b/muse2/muse/controlfifo.h
@@ -0,0 +1,64 @@
+//=============================================================================
+//  MusE
+//  Linux Music Editor
+//
+//  Copyright (C) 1999-2010 by Werner Schweer and others
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.
+//
+//  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.
+//=============================================================================
+
+#ifndef __CONTROLFIFO_H__
+#define __CONTROLFIFO_H__
+
+#define CONTROL_FIFO_SIZE 8192
+
+//---------------------------------------------------------
+//  ControlEvent
+//  Item struct for ControlFifo. 
+//---------------------------------------------------------
+
+struct ControlEvent
+{
+  // Unique: Whether the item must not be skipped, even if it has the same 
+  //  (possibly rounded) frame and index as the previous item. This is mainly for 
+  //  dssi-vst guis, they require acknowledgment of every message.
+  bool unique; 
+  unsigned idx;
+  float value;
+  unsigned frame;    
+};
+
+//---------------------------------------------------------
+//  ControlFifo
+//---------------------------------------------------------
+
+class ControlFifo
+{
+      ControlEvent fifo[CONTROL_FIFO_SIZE];
+      volatile int size;
+      int wIndex;
+      int rIndex;
+
+   public:
+      ControlFifo()  { clear(); }
+      bool put(const ControlEvent& event);   // returns true on fifo overflow
+      ControlEvent get();
+      const ControlEvent& peek(int n = 0);
+      void remove();
+      bool isEmpty() const { return size == 0; }
+      void clear()         { size = 0, wIndex = 0, rIndex = 0; }
+      int getSize() const  { return size; }
+};
+
+
+#endif
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