Preliminary MIDI plugin support.

[ardour.git] / libs / ardour / audioengine.cc

diff --git a/libs/ardour/audioengine.cc b/libs/ardour/audioengine.cc
index 8ca85c4fe852fcb2ce237959f73ca095bcfd7a09..51a6ae71fbb15bca4ecbc90cd677dad5f3dbb78a 100644 (file)
--- a/libs/ardour/audioengine.cc
+++ b/libs/ardour/audioengine.cc
@@ -140,14 +140,14 @@ AudioEngine::start ()
 
        if (!_running) {
 
+               nframes_t blocksize = jack_get_buffer_size (_jack);
+               
                if (session) {
-                       nframes_t blocksize = jack_get_buffer_size (_jack);
-
                        BootMessage (_("Connect session to engine"));
 
                        session->set_block_size (blocksize);
                        session->set_frame_rate (jack_get_sample_rate (_jack));
-
+                       
                        /* page in as much of the session process code as we
                           can before we really start running.
                        */
@@ -188,6 +188,8 @@ AudioEngine::start ()
                }
 
                start_metering_thread();
+
+               _raw_buffer_sizes[DataType::AUDIO] = blocksize * sizeof(float);
        }
 
        return _running ? 0 : -1;
@@ -466,6 +468,7 @@ int
 AudioEngine::jack_bufsize_callback (nframes_t nframes)
 {
        _buffer_size = nframes;
+       _raw_buffer_sizes[DataType::AUDIO] = nframes * sizeof(float);
        _usecs_per_cycle = (int) floor ((((double) nframes / frame_rate())) * 1000000.0);
        last_monitor_check = 0;
 
@@ -603,7 +606,11 @@ AudioEngine::register_port (DataType dtype, const string& portname, bool input)
                } else {
                        throw unknown_type();
                }
-
+               
+               size_t& old_buffer_size  = _raw_buffer_sizes[newport->type()];
+               size_t  port_buffer_size = newport->raw_buffer_size(0);
+               if (port_buffer_size > old_buffer_size)
+                       old_buffer_size = port_buffer_size;
 
                RCUWriter<Ports> writer (ports);
                boost::shared_ptr<Ports> ps = writer.get_copy ();
@@ -729,7 +736,7 @@ AudioEngine::disconnect (const string& source, const string& destination)
        Port* src = get_port_by_name_locked (s);
        Port* dst = get_port_by_name_locked (d);
 
-               if (src) {
+       if (src) {
                        ret = src->disconnect (d);
        } else if (dst) {
                        ret = dst->disconnect (s);
@@ -772,6 +779,13 @@ AudioEngine::frame_rate ()
        }
 }
 
+size_t
+AudioEngine::raw_buffer_size (DataType t)
+{
+       std::map<DataType,size_t>::const_iterator s = _raw_buffer_sizes.find(t);
+       return (s != _raw_buffer_sizes.end()) ? s->second : 0;
+}
+
 ARDOUR::nframes_t
 AudioEngine::frames_per_cycle ()
 {
@@ -1184,7 +1198,6 @@ AudioEngine::disconnect_from_jack ()
                return 0;
        }
 
-
        if (_running) {
                stop_metering_thread ();
        }
@@ -1197,6 +1210,7 @@ AudioEngine::disconnect_from_jack ()
 
        _buffer_size = 0;
        _frame_rate = 0;
+       _raw_buffer_sizes.clear();
 
        if (_running) {
                _running = false;