#include <set>
-
#include <glibmm/thread.h>
#include "pbd/basename.h"
#include "ardour/dB.h"
#include "ardour/playlist.h"
#include "ardour/midi_source.h"
+#include "ardour/region_factory.h"
#include "ardour/types.h"
#include "ardour/midi_ring_buffer.h"
using namespace ARDOUR;
using namespace PBD;
-/** Basic MidiRegion constructor (one channel) */
-MidiRegion::MidiRegion (boost::shared_ptr<MidiSource> src)
- : Region (src)
+namespace ARDOUR {
+ namespace Properties {
+ PBD::PropertyDescriptor<void*> midi_data;
+ PBD::PropertyDescriptor<Evoral::MusicalTime> length_beats;
+ }
+}
+
+void
+MidiRegion::make_property_quarks ()
+{
+ Properties::midi_data.property_id = g_quark_from_static_string (X_("midi-data"));
+ DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for midi-data = %1\n", Properties::midi_data.property_id));
+ Properties::length_beats.property_id = g_quark_from_static_string (X_("length-beats"));
+ DEBUG_TRACE (DEBUG::Properties, string_compose ("quark for length-beats = %1\n", Properties::length_beats.property_id));
+}
+
+void
+MidiRegion::register_properties ()
{
- assert(_name.val().find("/") == string::npos);
- midi_source(0)->Switched.connect_same_thread (*this, boost::bind (&MidiRegion::switch_source, this, _1));
+ add_property (_length_beats);
}
/* Basic MidiRegion constructor (many channels) */
MidiRegion::MidiRegion (const SourceList& srcs)
: Region (srcs)
+ , _length_beats (Properties::length_beats, midi_source(0)->length_beats())
{
+ register_properties ();
+
+ midi_source(0)->ModelChanged.connect_same_thread (_source_connection, boost::bind (&MidiRegion::model_changed, this));
+ model_changed ();
assert(_name.val().find("/") == string::npos);
- midi_source(0)->Switched.connect_same_thread (*this, boost::bind (&MidiRegion::switch_source, this, _1));
+ assert(_type == DataType::MIDI);
}
+MidiRegion::MidiRegion (boost::shared_ptr<const MidiRegion> other)
+ : Region (other)
+ , _length_beats (Properties::length_beats, (Evoral::MusicalTime) 0)
+{
+ update_length_beats ();
+ register_properties ();
+
+ assert(_name.val().find("/") == string::npos);
+ midi_source(0)->ModelChanged.connect_same_thread (_source_connection, boost::bind (&MidiRegion::model_changed, this));
+ model_changed ();
+}
/** Create a new MidiRegion, that is part of an existing one */
-MidiRegion::MidiRegion (boost::shared_ptr<const MidiRegion> other, frameoffset_t offset, bool offset_relative)
- : Region (other, offset, offset_relative)
+MidiRegion::MidiRegion (boost::shared_ptr<const MidiRegion> other, frameoffset_t offset)
+ : Region (other, offset)
+ , _length_beats (Properties::length_beats, (Evoral::MusicalTime) 0)
{
+ BeatsFramesConverter bfc (_session.tempo_map(), _position);
+ Evoral::MusicalTime const offset_beats = bfc.from (offset);
+
+ _length_beats = other->_length_beats - offset_beats;
+
+ register_properties ();
+
assert(_name.val().find("/") == string::npos);
- midi_source(0)->Switched.connect_same_thread (*this, boost::bind (&MidiRegion::switch_source, this, _1));
+ midi_source(0)->ModelChanged.connect_same_thread (_source_connection, boost::bind (&MidiRegion::model_changed, this));
+ model_changed ();
}
-MidiRegion::MidiRegion (boost::shared_ptr<MidiSource> src, const XMLNode& node)
- : Region (src, node)
+MidiRegion::~MidiRegion ()
{
- if (set_state (node, Stateful::loading_state_version)) {
- throw failed_constructor();
- }
+}
- midi_source(0)->Switched.connect_same_thread (*this, boost::bind (&MidiRegion::switch_source, this, _1));
- assert(_name.val().find("/") == string::npos);
- assert(_type == DataType::MIDI);
+/** Create a new MidiRegion that has its own version of some/all of the Source used by another.
+ */
+boost::shared_ptr<MidiRegion>
+MidiRegion::clone ()
+{
+ BeatsFramesConverter bfc (_session.tempo_map(), _position);
+ Evoral::MusicalTime const bbegin = bfc.from (_start);
+ Evoral::MusicalTime const bend = bfc.from (_start + _length);
+
+ boost::shared_ptr<MidiSource> ms = midi_source(0)->clone (bbegin, bend);
+
+ PropertyList plist;
+
+ plist.add (Properties::name, ms->name());
+ plist.add (Properties::whole_file, true);
+ plist.add (Properties::start, _start);
+ plist.add (Properties::length, _length);
+ plist.add (Properties::length_beats, _length_beats);
+ plist.add (Properties::layer, 0);
+
+ return boost::dynamic_pointer_cast<MidiRegion> (RegionFactory::create (ms, plist, true));
}
-MidiRegion::MidiRegion (const SourceList& srcs, const XMLNode& node)
- : Region (srcs, node)
+void
+MidiRegion::post_set (const PropertyChange& pc)
{
- if (set_state (node, Stateful::loading_state_version)) {
- throw failed_constructor();
+ if (pc.contains (Properties::length) && !pc.contains (Properties::length_beats)) {
+ update_length_beats ();
}
+}
- midi_source(0)->Switched.connect_same_thread (*this, boost::bind (&MidiRegion::switch_source, this, _1));
- assert(_name.val().find("/") == string::npos);
- assert(_type == DataType::MIDI);
+void
+MidiRegion::set_length_internal (framecnt_t len)
+{
+ Region::set_length_internal (len);
+ update_length_beats ();
}
-MidiRegion::~MidiRegion ()
+void
+MidiRegion::update_length_beats ()
{
+ BeatsFramesConverter converter (_session.tempo_map(), _position);
+ _length_beats = converter.from (_length);
}
void
MidiRegion::set_position_internal (framepos_t pos, bool allow_bbt_recompute)
{
- BeatsFramesConverter old_converter(_session.tempo_map(), _position - _start);
- double length_beats = old_converter.from(_length);
-
- Region::set_position_internal(pos, allow_bbt_recompute);
-
- BeatsFramesConverter new_converter(_session.tempo_map(), pos - _start);
-
- set_length(new_converter.to(length_beats), 0);
+ Region::set_position_internal (pos, allow_bbt_recompute);
+ /* zero length regions don't exist - so if _length_beats is zero, this object
+ is under construction.
+ */
+ if (_length_beats) {
+ /* leave _length_beats alone, and change _length to reflect the state of things
+ at the new position (tempo map may dictate a different number of frames
+ */
+ BeatsFramesConverter converter (_session.tempo_map(), _position);
+ Region::set_length_internal (converter.to (_length_beats));
+ }
}
framecnt_t
-MidiRegion::read_at (Evoral::EventSink<nframes_t>& out, framepos_t position, framecnt_t dur, uint32_t chan_n, NoteMode mode, MidiStateTracker* tracker) const
+MidiRegion::read_at (Evoral::EventSink<framepos_t>& out, framepos_t position, framecnt_t dur, uint32_t chan_n, NoteMode mode, MidiStateTracker* tracker) const
{
return _read_at (_sources, out, position, dur, chan_n, mode, tracker);
}
framecnt_t
-MidiRegion::master_read_at (MidiRingBuffer<nframes_t>& out, framepos_t position, framecnt_t dur, uint32_t chan_n, NoteMode mode) const
+MidiRegion::master_read_at (MidiRingBuffer<framepos_t>& out, framepos_t position, framecnt_t dur, uint32_t chan_n, NoteMode mode) const
{
return _read_at (_master_sources, out, position, dur, chan_n, mode); /* no tracker */
}
framecnt_t
-MidiRegion::_read_at (const SourceList& /*srcs*/, Evoral::EventSink<nframes_t>& dst, framepos_t position, framecnt_t dur, uint32_t chan_n,
+MidiRegion::_read_at (const SourceList& /*srcs*/, Evoral::EventSink<framepos_t>& dst, framepos_t position, framecnt_t dur, uint32_t chan_n,
NoteMode mode, MidiStateTracker* tracker) const
{
frameoffset_t internal_offset = 0;
- frameoffset_t src_offset = 0;
framecnt_t to_read = 0;
/* precondition: caller has verified that we cover the desired section */
}
if (position < _position) {
+ /* we are starting the read from before the start of the region */
internal_offset = 0;
- src_offset = _position - position;
- dur -= src_offset;
+ dur -= _position - position;
} else {
+ /* we are starting the read from after the start of the region */
internal_offset = position - _position;
- src_offset = 0;
}
if (internal_offset >= _length) {
boost::shared_ptr<MidiSource> src = midi_source(chan_n);
src->set_note_mode(mode);
+
+ /*
+ cerr << "MR read @ " << position << " * " << to_read
+ << " _position = " << _position
+ << " _start = " << _start
+ << " intoffset = " << internal_offset
+ << endl;
+ */
- framepos_t output_buffer_position = 0;
- framepos_t negative_output_buffer_position = 0;
- if (_position >= _start) {
- // handle resizing of beginnings of regions correctly
- output_buffer_position = _position - _start;
- } else {
- // when _start is greater than _position, we have to subtract
- // _start from the note times in the midi source
- negative_output_buffer_position = _start;
- }
-
- /*cerr << "MR read @ " << position << " * " << to_read
- << " _position = " << _position
- << " _start = " << _start
- << " offset = " << output_buffer_position
- << " negoffset = " << negative_output_buffer_position
- << " intoffset = " << internal_offset
- << endl;*/
+ /* This call reads events from a source and writes them to `dst' timed in session frames */
if (src->midi_read (
dst, // destination buffer
- _position - _start, // start position of the source in this read context
+ _position - _start, // start position of the source in session frames
_start + internal_offset, // where to start reading in the source
to_read, // read duration in frames
- output_buffer_position, // the offset in the output buffer
- negative_output_buffer_position, // amount to substract from note times
- tracker
+ tracker,
+ _filtered_parameters
) != to_read) {
return 0; /* "read nothing" */
}
}
XMLNode&
-MidiRegion::state (bool full)
+MidiRegion::state ()
{
- XMLNode& node (Region::state (full));
- char buf[64];
- char buf2[64];
- LocaleGuard lg (X_("POSIX"));
-
- // XXX these should move into Region
-
- for (uint32_t n=0; n < _sources.size(); ++n) {
- snprintf (buf2, sizeof(buf2), "source-%d", n);
- _sources[n]->id().print (buf, sizeof(buf));
- node.add_property (buf2, buf);
- }
-
- for (uint32_t n=0; n < _master_sources.size(); ++n) {
- snprintf (buf2, sizeof(buf2), "master-source-%d", n);
- _master_sources[n]->id().print (buf, sizeof (buf));
- node.add_property (buf2, buf);
- }
-
- if (full && _extra_xml) {
- node.add_child_copy (*_extra_xml);
- }
-
- return node;
+ return Region::state ();
}
int
MidiRegion::set_state (const XMLNode& node, int version)
{
- return Region::set_state (node, version);
+ int ret = Region::set_state (node, version);
+
+ if (ret == 0) {
+ update_length_beats ();
+ }
+
+ return ret;
}
void
MidiRegion::recompute_at_end ()
{
/* our length has changed
- * (non destructively) "chop" notes that pass the end boundary, to
- * prevent stuck notes.
+ * so what? stuck notes are dealt with via a note state tracker
*/
}
return boost::dynamic_pointer_cast<MidiSource>(source(n));
}
-
void
-MidiRegion::switch_source(boost::shared_ptr<Source> src)
+MidiRegion::model_changed ()
{
- boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
- if (!msrc)
+ if (!model()) {
return;
+ }
+
+ /* build list of filtered Parameters, being those whose automation state is not `Play' */
+
+ _filtered_parameters.clear ();
- // MIDI regions have only one source
- _sources.clear();
- _sources.push_back(msrc);
+ Automatable::Controls const & c = model()->controls();
- set_name(msrc->name());
+ for (Automatable::Controls::const_iterator i = c.begin(); i != c.end(); ++i) {
+ boost::shared_ptr<AutomationControl> ac = boost::dynamic_pointer_cast<AutomationControl> (i->second);
+ assert (ac);
+ if (ac->alist()->automation_state() != Play) {
+ _filtered_parameters.insert (ac->parameter ());
+ }
+ }
+
+ /* watch for changes to controls' AutoState */
+ midi_source()->AutomationStateChanged.connect_same_thread (
+ _model_connection, boost::bind (&MidiRegion::model_automation_state_changed, this, _1)
+ );
+
+ model()->ContentsChanged.connect_same_thread (
+ _model_contents_connection, boost::bind (&MidiRegion::model_contents_changed, this));
+}
+
+void
+MidiRegion::model_contents_changed ()
+{
+ send_change (PropertyChange (Properties::midi_data));
}
+void
+MidiRegion::model_automation_state_changed (Evoral::Parameter const & p)
+{
+ /* Update our filtered parameters list after a change to a parameter's AutoState */
+
+ boost::shared_ptr<AutomationControl> ac = model()->automation_control (p);
+ assert (ac);
+
+ if (ac->alist()->automation_state() == Play) {
+ _filtered_parameters.erase (p);
+ } else {
+ _filtered_parameters.insert (p);
+ }
+
+ /* the source will have an iterator into the model, and that iterator will have been set up
+ for a given set of filtered_parameters, so now that we've changed that list we must invalidate
+ the iterator.
+ */
+ Glib::Mutex::Lock lm (midi_source(0)->mutex());
+ midi_source(0)->invalidate ();
+}
+
+/** This is called when a trim drag has resulted in a -ve _start time for this region.
+ * Fix it up by adding some empty space to the source.
+ */
+void
+MidiRegion::fix_negative_start ()
+{
+ BeatsFramesConverter c (_session.tempo_map(), _position);
+
+ model()->insert_silence_at_start (c.from (-_start));
+ _start = 0;
+}
projects / ardour.git / blobdiff