VST use scratch buffers for processing.

[ardour.git] / libs / ardour / ardour / async_midi_port.h

diff --git a/libs/ardour/ardour/async_midi_port.h b/libs/ardour/ardour/async_midi_port.h
index 896301b398d05dbb3a8d824308cbf11aebf50f94..cbe9bb1a9c73ee762c33304ae275e9ea4d81f04a 100644 (file)
--- a/libs/ardour/ardour/async_midi_port.h
+++ b/libs/ardour/ardour/async_midi_port.h
@@ -22,23 +22,26 @@
 #include <string>
 #include <iostream>
 
+#include <boost/function.hpp>
+
 #include "pbd/xml++.h"
 #include "pbd/crossthread.h"
 #include "pbd/signals.h"
 #include "pbd/ringbuffer.h"
 
 #include "evoral/Event.hpp"
-#include "evoral/EventRingBuffer.hpp"
 
 #include "midi++/types.h"
 #include "midi++/parser.h"
 #include "midi++/port.h"
 
+#include "ardour/event_ring_buffer.h"
+#include "ardour/libardour_visibility.h"
 #include "ardour/midi_port.h"
 
 namespace ARDOUR {
 
-       class AsyncMIDIPort : public ARDOUR::MidiPort, public MIDI::Port {
+class LIBARDOUR_API AsyncMIDIPort : public ARDOUR::MidiPort, public MIDI::Port {
 
   public:
         AsyncMIDIPort (std::string const &, PortFlags);
@@ -54,15 +57,22 @@ namespace ARDOUR {
        void parse (framecnt_t timestamp);
        int write (const MIDI::byte *msg, size_t msglen, MIDI::timestamp_t timestamp);
         int read (MIDI::byte *buf, size_t bufsize);
+       /* waits for output to be cleared */
        void drain (int check_interval_usecs);
-       int selectable () const {
-#ifdef PLATFORM_WINDOWS
-               return false;
-#else
-               return xthread.selectable();
-#endif
+
+       /* clears async request communication channel */
+       void clear () {
+               _xthread.drain ();
        }
 
+        CrossThreadChannel& xthread() {
+                return _xthread;
+        }
+
+       /* Not selectable; use ios() */
+       int selectable() const { return -1; }
+       void set_timer (boost::function<framecnt_t (void)>&);
+
        static void set_process_thread (pthread_t);
        static pthread_t get_process_thread () { return _process_thread; }
        static bool is_process_thread();
@@ -70,12 +80,12 @@ namespace ARDOUR {
   private:     
        bool                    _currently_in_cycle;
         MIDI::timestamp_t       _last_write_timestamp;
+       bool                    have_timer;
+       boost::function<framecnt_t (void)> timer;
        RingBuffer< Evoral::Event<double> > output_fifo;
-        Evoral::EventRingBuffer<MIDI::timestamp_t> input_fifo;
+        EventRingBuffer<MIDI::timestamp_t> input_fifo;
         Glib::Threads::Mutex output_fifo_lock;
-#ifndef PLATFORM_WINDOWS
-       CrossThreadChannel xthread;
-#endif
+       CrossThreadChannel _xthread;
 
        int create_port ();
 
@@ -89,7 +99,7 @@ namespace ARDOUR {
        void make_connections ();
        void init (std::string const &, Flags);
 
-        void flush_output_fifo (pframes_t);
+    void flush_output_fifo (pframes_t);
 
        static pthread_t _process_thread;
 };