/*
- Copyright (C) 2000-2006 Paul Davis
+ Copyright (C) 2000-2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <set>
-#include <sigc++/bind.h>
-#include <sigc++/class_slot.h>
-
#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 std;
using namespace ARDOUR;
+using namespace PBD;
+
+namespace ARDOUR {
+ namespace Properties {
+ PBD::PropertyDescriptor<void*> midi_data;
+ PBD::PropertyDescriptor<Evoral::MusicalTime> length_beats;
+ }
+}
-/** Basic MidiRegion constructor (one channel) */
-MidiRegion::MidiRegion (boost::shared_ptr<MidiSource> src, nframes_t start, nframes_t length)
- : Region (src, start, length, PBD::basename_nosuffix(src->name()), DataType::MIDI, 0, Region::Flag(Region::DefaultFlags|Region::External))
+void
+MidiRegion::make_property_quarks ()
{
- assert(_name.find("/") == string::npos);
- midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
+ 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));
}
-/* Basic MidiRegion constructor (one channel) */
-MidiRegion::MidiRegion (boost::shared_ptr<MidiSource> src, nframes_t start, nframes_t length, const string& name, layer_t layer, Flag flags)
- : Region (src, start, length, name, DataType::MIDI, layer, flags)
+void
+MidiRegion::register_properties ()
{
- assert(_name.find("/") == string::npos);
- midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
+ add_property (_length_beats);
}
/* Basic MidiRegion constructor (many channels) */
-MidiRegion::MidiRegion (const SourceList& srcs, nframes_t start, nframes_t length, const string& name, layer_t layer, Flag flags)
- : Region (srcs, start, length, name, DataType::MIDI, layer, flags)
+MidiRegion::MidiRegion (const SourceList& srcs)
+ : Region (srcs)
+ , _length_beats (Properties::length_beats, (Evoral::MusicalTime) 0)
{
- assert(_name.find("/") == string::npos);
- midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
-}
+ update_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);
+ assert(_type == DataType::MIDI);
+}
/** Create a new MidiRegion, that is part of an existing one */
-MidiRegion::MidiRegion (boost::shared_ptr<const MidiRegion> other, nframes_t offset, nframes_t length, const string& name, layer_t layer, Flag flags)
- : Region (other, offset, length, name, layer, flags)
+MidiRegion::MidiRegion (boost::shared_ptr<const MidiRegion> other, frameoffset_t offset, bool offset_relative)
+ : Region (other, offset, offset_relative)
+ , _length_beats (Properties::length_beats, (Evoral::MusicalTime) 0)
{
- assert(_name.find("/") == string::npos);
- midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
+ 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 ();
}
-MidiRegion::MidiRegion (boost::shared_ptr<const MidiRegion> other)
- : Region (other)
+MidiRegion::~MidiRegion ()
{
- assert(_name.find("/") == string::npos);
- midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
}
-MidiRegion::MidiRegion (boost::shared_ptr<MidiSource> src, const XMLNode& node)
- : Region (src, node)
+/** Create a new MidiRegion that has its own version of some/all of the Source used by another.
+ */
+boost::shared_ptr<MidiRegion>
+MidiRegion::clone ()
{
- if (set_state (node)) {
- throw failed_constructor();
- }
+ BeatsFramesConverter bfc (_session.tempo_map(), _position);
+ Evoral::MusicalTime const bbegin = bfc.from (_start);
+ Evoral::MusicalTime const bend = bfc.from (_start + _length);
- midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
- assert(_name.find("/") == string::npos);
- assert(_type == DataType::MIDI);
-}
+ boost::shared_ptr<MidiSource> ms = midi_source(0)->clone (bbegin, bend);
-MidiRegion::MidiRegion (const SourceList& srcs, const XMLNode& node)
- : Region (srcs, node)
-{
- if (set_state (node)) {
- throw failed_constructor();
- }
+ PropertyList plist;
- midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
- assert(_name.find("/") == string::npos);
- assert(_type == DataType::MIDI);
+ 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 ()
+void
+MidiRegion::set_length_internal (framecnt_t len)
{
+ Region::set_length_internal (len);
+ update_length_beats ();
}
void
-MidiRegion::set_position_internal (nframes_t pos, bool allow_bbt_recompute)
+MidiRegion::update_length_beats ()
{
- BeatsFramesConverter old_converter(_session, _position - _start);
- double length_beats = old_converter.from(_length);
-
- Region::set_position_internal(pos, allow_bbt_recompute);
-
- BeatsFramesConverter new_converter(_session, pos - _start);
+ cerr << name() << " Updating length beats, currently = " << _length_beats << " w/length = " << _length << endl;
+ BeatsFramesConverter converter (_session.tempo_map(), _position);
+ _length_beats = converter.from (_length);
+ cerr << "\tnew value: " << _length_beats << endl;
+}
- set_length(new_converter.to(length_beats), 0);
+void
+MidiRegion::set_position_internal (framepos_t pos, bool allow_bbt_recompute)
+{
+ 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 - _start);
+ Region::set_length_internal (converter.to (_length_beats));
+ }
}
-nframes_t
-MidiRegion::read_at (MidiRingBuffer<nframes_t>& out, sframes_t position, nframes_t dur, uint32_t chan_n, NoteMode mode) const
+framecnt_t
+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);
+ return _read_at (_sources, out, position, dur, chan_n, mode, tracker);
}
-nframes_t
-MidiRegion::master_read_at (MidiRingBuffer<nframes_t>& out, sframes_t position, nframes_t dur, uint32_t chan_n, NoteMode mode) const
+framecnt_t
+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);
+ return _read_at (_master_sources, out, position, dur, chan_n, mode); /* no tracker */
}
-nframes_t
-MidiRegion::_read_at (const SourceList& /*srcs*/, MidiRingBuffer<nframes_t>& dst, nframes_t position, nframes_t dur, uint32_t chan_n, NoteMode mode) const
+framecnt_t
+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
{
- nframes_t internal_offset = 0;
- nframes_t src_offset = 0;
- nframes_t to_read = 0;
-
+ frameoffset_t internal_offset = 0;
+ framecnt_t to_read = 0;
+
/* precondition: caller has verified that we cover the desired section */
assert(chan_n == 0);
-
+
+ if (muted()) {
+ return 0; /* read nothing */
+ }
+
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) {
return 0; /* read nothing */
}
-
- if ((to_read = min (dur, _length - internal_offset)) == 0) {
- return 0; /* read nothing */
- }
- // FIXME: non-opaque MIDI regions not yet supported
- assert(opaque());
-
- if (muted()) {
+ if ((to_read = min (dur, _length - internal_offset)) == 0) {
return 0; /* read nothing */
}
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;
+ */
+
+ /* This call reads events from a source and writes them to `dst' timed in session frames */
- nframes_t output_buffer_position = 0;
- nframes_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;
- }
-
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
- ) != to_read) {
+ tracker,
+ _filtered_parameters
+ ) != to_read) {
return 0; /* "read nothing" */
}
return to_read;
}
-
+
XMLNode&
-MidiRegion::state (bool full)
+MidiRegion::state ()
{
- XMLNode& node (Region::state (full));
- char buf[64];
- char buf2[64];
- LocaleGuard lg (X_("POSIX"));
-
- node.add_property ("flags", enum_2_string (_flags));
-
- // 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_live_state (const XMLNode& node, Change& what_changed, bool send)
+MidiRegion::set_state (const XMLNode& node, int version)
{
- const XMLProperty *prop;
- LocaleGuard lg (X_("POSIX"));
-
- Region::set_live_state (node, what_changed, false);
-
- uint32_t old_flags = _flags;
-
- if ((prop = node.property ("flags")) != 0) {
- _flags = Flag (string_2_enum (prop->value(), _flags));
-
- //_flags = Flag (strtol (prop->value().c_str(), (char **) 0, 16));
-
- _flags = Flag (_flags & ~Region::LeftOfSplit);
- _flags = Flag (_flags & ~Region::RightOfSplit);
- }
-
- if ((old_flags ^ _flags) & Muted) {
- what_changed = Change (what_changed|MuteChanged);
- }
- if ((old_flags ^ _flags) & Opaque) {
- what_changed = Change (what_changed|OpacityChanged);
- }
- if ((old_flags ^ _flags) & Locked) {
- what_changed = Change (what_changed|LockChanged);
- }
-
- if (send) {
- send_change (what_changed);
- }
-
- return 0;
-}
+ int ret = Region::set_state (node, version);
-int
-MidiRegion::set_state (const XMLNode& node)
-{
- /* Region::set_state() calls the virtual set_live_state(),
- which will get us back to AudioRegion::set_live_state()
- to handle the relevant stuff.
- */
+ if (ret == 0) {
+ update_length_beats ();
+ }
- return Region::set_state (node);
+ 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
*/
-}
+}
void
MidiRegion::recompute_at_start ()
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 ();
+
+ Automatable::Controls const & c = model()->controls();
+
+ 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);
- // MIDI regions have only one source
- _sources.clear();
- _sources.push_back(msrc);
+ if (ac->alist()->automation_state() == Play) {
+ _filtered_parameters.erase (p);
+ } else {
+ _filtered_parameters.insert (p);
+ }
- set_name(msrc->name());
+ /* 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