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authorRobin Gareus <robin@gareus.org>2017-09-09 02:23:13 +0200
committerRobin Gareus <robin@gareus.org>2017-09-09 03:08:46 +0200
commit2ca3009143452669e415237a667f99eb9fc57285 (patch)
tree7c5e8126159a04f3430dd1abf0a2b92b9462ac59 /libs/ardour/plugin.cc
parent483ad807ce2e97f9a09c138456598e7bd9ed6651 (diff)
Allow to send MIDI data directly to a plugin
Diffstat (limited to 'libs/ardour/plugin.cc')
-rw-r--r--libs/ardour/plugin.cc18
1 files changed, 16 insertions, 2 deletions
diff --git a/libs/ardour/plugin.cc b/libs/ardour/plugin.cc
index 7c312011be..64f00cf1c4 100644
--- a/libs/ardour/plugin.cc
+++ b/libs/ardour/plugin.cc
@@ -101,6 +101,7 @@ Plugin::Plugin (AudioEngine& e, Session& s)
, _have_presets (false)
, _have_pending_stop_events (false)
, _parameter_changed_since_last_preset (false)
+ , _immediate_events(6096) // FIXME: size?
{
_pending_stop_events.ensure_buffers (DataType::MIDI, 1, 4096);
}
@@ -116,6 +117,7 @@ Plugin::Plugin (const Plugin& other)
, _have_presets (false)
, _have_pending_stop_events (false)
, _parameter_changed_since_last_preset (false)
+ , _immediate_events(6096) // FIXME: size?
{
_pending_stop_events.ensure_buffers (DataType::MIDI, 1, 4096);
}
@@ -345,16 +347,28 @@ Plugin::preset_by_uri (const string& uri)
}
}
+bool
+Plugin::write_immediate_event (size_t size, const uint8_t* buf)
+{
+ if (!Evoral::midi_event_is_valid (buf, size)) {
+ return false;
+ }
+ return (_immediate_events.write (0, Evoral::MIDI_EVENT, size, buf) == size);
+}
+
int
Plugin::connect_and_run (BufferSet& bufs,
framepos_t /*start*/, framepos_t /*end*/, double /*speed*/,
ChanMapping /*in_map*/, ChanMapping /*out_map*/,
- pframes_t /* nframes */, framecnt_t /*offset*/)
+ pframes_t nframes, framecnt_t /*offset*/)
{
if (bufs.count().n_midi() > 0) {
- /* Track notes that we are sending to the plugin */
+ if (_immediate_events.read_space() && nframes > 0) {
+ _immediate_events.read (bufs.get_midi (0), 0, 1, nframes - 1, true);
+ }
+ /* Track notes that we are sending to the plugin */
const MidiBuffer& b = bufs.get_midi (0);
_tracker.track (b.begin(), b.end());