/*
- Copyright (C) 2006 Paul Davis
- Written by Dave Robillard, 2006
+ 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
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ $Id: midiregion.cc 746 2006-08-02 02:44:23Z drobilla $
*/
#include <cmath>
#include <glibmm/thread.h>
-#include <pbd/basename.h>
-#include <pbd/xml++.h>
+#include "pbd/basename.h"
+#include "pbd/xml++.h"
+#include "pbd/enumwriter.h"
-#include <ardour/midi_region.h>
-#include <ardour/session.h>
-#include <ardour/gain.h>
-#include <ardour/dB.h>
-#include <ardour/playlist.h>
-#include <ardour/midi_source.h>
+#include "ardour/midi_region.h"
+#include "ardour/session.h"
+#include "ardour/gain.h"
+#include "ardour/dB.h"
+#include "ardour/playlist.h"
+#include "ardour/midi_source.h"
+#include "ardour/types.h"
+#include "ardour/midi_ring_buffer.h"
#include "i18n.h"
#include <locale.h>
using namespace std;
using namespace ARDOUR;
-MidiRegionState::MidiRegionState (string why)
- : RegionState (why)
+/** 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))
{
+ assert(_name.find("/") == string::npos);
+ midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
}
-MidiRegion::MidiRegion (MidiSource& src, jack_nframes_t start, jack_nframes_t length, bool announce)
- : Region (start, length, PBD::basename_nosuffix(src.name()), 0, Region::Flag(Region::DefaultFlags|Region::External))
+/* 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)
{
- /* basic MidiRegion constructor */
-
- sources.push_back (&src);
- master_sources.push_back (&src);
- src.GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
-
- save_state ("initial state");
-
- if (announce) {
- CheckNewRegion (this); /* EMIT SIGNAL */
- }
+ assert(_name.find("/") == string::npos);
+ midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
}
-MidiRegion::MidiRegion (MidiSource& src, jack_nframes_t start, jack_nframes_t length, const string& name, layer_t layer, Flag flags, bool announce)
- : Region (start, length, name, layer, flags)
+/* 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)
{
- /* basic MidiRegion constructor */
-
- sources.push_back (&src);
- master_sources.push_back (&src);
- src.GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
-
- save_state ("initial state");
-
- if (announce) {
- CheckNewRegion (this); /* EMIT SIGNAL */
- }
+ assert(_name.find("/") == string::npos);
+ midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
}
-MidiRegion::MidiRegion (SourceList& srcs, jack_nframes_t start, jack_nframes_t length, const string& name, layer_t layer, Flag flags, bool announce)
- : Region (start, length, name, layer, flags)
-{
- /* basic MidiRegion constructor */
-#if 0
- for (SourceList::iterator i=srcs.begin(); i != srcs.end(); ++i) {
- sources.push_back (*i);
- master_sources.push_back (*i);
- (*i)->GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
- }
+/** 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)
{
- /* create a new MidiRegion, that is part of an existing one */
-
- set<MidiSource*> unique_srcs;
-
- for (SourceList::const_iterator i= other.sources.begin(); i != other.sources.end(); ++i) {
- sources.push_back (*i);
- (*i)->GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
- unique_srcs.insert (*i);
- }
-
- for (SourceList::const_iterator i = other.master_sources.begin(); i != other.master_sources.end(); ++i) {
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
- }
- master_sources.push_back (*i);
- }
-
- save_state ("initial state");
-
- if (announce) {
- CheckNewRegion (this); /* EMIT SIGNAL */
- }
-#endif
+ assert(_name.find("/") == string::npos);
+ midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
}
-MidiRegion::MidiRegion (const MidiRegion &other)
+MidiRegion::MidiRegion (boost::shared_ptr<const MidiRegion> other)
: Region (other)
{
- /* Pure copy constructor */
-
- set<MidiSource*> unique_srcs;
-
- for (SourceList::const_iterator i = other.sources.begin(); i != other.sources.end(); ++i) {
- sources.push_back (*i);
- (*i)->GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
- unique_srcs.insert (*i);
- }
-
- for (SourceList::const_iterator i = other.master_sources.begin(); i != other.master_sources.end(); ++i) {
- master_sources.push_back (*i);
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
- }
- }
-
- save_state ("initial state");
-
- /* NOTE: no CheckNewRegion signal emitted here. This is the copy constructor */
+ assert(_name.find("/") == string::npos);
+ midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
}
-MidiRegion::MidiRegion (MidiSource& src, const XMLNode& node)
- : Region (node)
+MidiRegion::MidiRegion (boost::shared_ptr<MidiSource> src, const XMLNode& node)
+ : Region (src, node)
{
- sources.push_back (&src);
- master_sources.push_back (&src);
- src.GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
-
if (set_state (node)) {
throw failed_constructor();
}
- save_state ("initial state");
-
- CheckNewRegion (this); /* EMIT SIGNAL */
+ midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
+ assert(_name.find("/") == string::npos);
+ assert(_type == DataType::MIDI);
}
-MidiRegion::MidiRegion (SourceList& srcs, const XMLNode& node)
- : Region (node)
+MidiRegion::MidiRegion (const SourceList& srcs, const XMLNode& node)
+ : Region (srcs, node)
{
- /* basic MidiRegion constructor */
-
- set<MidiSource*> unique_srcs;
-
- for (SourceList::iterator i=srcs.begin(); i != srcs.end(); ++i) {
- sources.push_back (*i);
- (*i)->GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
- unique_srcs.insert (*i);
- }
-
- for (SourceList::iterator i = srcs.begin(); i != srcs.end(); ++i) {
- master_sources.push_back (*i);
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->GoingAway.connect (mem_fun (*this, &MidiRegion::source_deleted));
- }
- }
-
if (set_state (node)) {
throw failed_constructor();
}
- save_state ("initial state");
-
- CheckNewRegion (this); /* EMIT SIGNAL */
+ midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source));
+ assert(_name.find("/") == string::npos);
+ assert(_type == DataType::MIDI);
}
MidiRegion::~MidiRegion ()
{
- GoingAway (this);
}
-StateManager::State*
-MidiRegion::state_factory (std::string why) const
-{
- MidiRegionState* state = new MidiRegionState (why);
-
- Region::store_state (*state);
-
- return state;
-}
-
-Change
-MidiRegion::restore_state (StateManager::State& sstate)
+void
+MidiRegion::set_position_internal (nframes_t pos, bool allow_bbt_recompute)
{
- MidiRegionState* state = dynamic_cast<MidiRegionState*> (&sstate);
+ BeatsFramesConverter old_converter(_session, _position - _start);
+ double length_beats = old_converter.from(_length);
- Change what_changed = Region::restore_and_return_flags (*state);
+ Region::set_position_internal(pos, allow_bbt_recompute);
- if (_flags != Flag (state->_flags)) {
-
- //uint32_t old_flags = _flags;
-
- _flags = Flag (state->_flags);
-
- }
-
- /* XXX need a way to test stored state versus current for envelopes */
-
- what_changed = Change (what_changed);
+ BeatsFramesConverter new_converter(_session, pos - _start);
- return what_changed;
+ set_length(new_converter.to(length_beats), 0);
}
-UndoAction
-MidiRegion::get_memento() const
+nframes_t
+MidiRegion::read_at (MidiRingBuffer<nframes_t>& out, sframes_t position, nframes_t dur, uint32_t chan_n, NoteMode mode) const
{
- return sigc::bind (mem_fun (*(const_cast<MidiRegion *> (this)), &StateManager::use_state), _current_state_id);
+ return _read_at (_sources, out, position, dur, chan_n, mode);
}
-bool
-MidiRegion::verify_length (jack_nframes_t len)
+nframes_t
+MidiRegion::master_read_at (MidiRingBuffer<nframes_t>& out, sframes_t position, nframes_t dur, uint32_t chan_n, NoteMode mode) const
{
- for (uint32_t n=0; n < sources.size(); ++n) {
- if (_start > sources[n]->length() - len) {
- return false;
- }
- }
- return true;
+ return _read_at (_master_sources, out, position, dur, chan_n, mode);
}
-bool
-MidiRegion::verify_start_and_length (jack_nframes_t new_start, jack_nframes_t new_length)
+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
{
- for (uint32_t n=0; n < sources.size(); ++n) {
- if (new_length > sources[n]->length() - new_start) {
- return false;
- }
- }
- return true;
-}
-bool
-MidiRegion::verify_start (jack_nframes_t pos)
-{
- for (uint32_t n=0; n < sources.size(); ++n) {
- if (pos > sources[n]->length() - _length) {
- return false;
- }
- }
- return true;
-}
-
-bool
-MidiRegion::verify_start_mutable (jack_nframes_t& new_start)
-{
- for (uint32_t n=0; n < sources.size(); ++n) {
- if (new_start > sources[n]->length() - _length) {
- new_start = sources[n]->length() - _length;
- }
- }
- return true;
-}
+ nframes_t internal_offset = 0;
+ nframes_t src_offset = 0;
+ nframes_t to_read = 0;
-jack_nframes_t
-MidiRegion::read_at (unsigned char *buf, unsigned char *mixdown_buffer, char * workbuf, jack_nframes_t position,
- jack_nframes_t cnt,
- uint32_t chan_n, jack_nframes_t read_frames, jack_nframes_t skip_frames) const
-{
- return _read_at (sources, buf, mixdown_buffer, workbuf, position, cnt, chan_n, read_frames, skip_frames);
-}
-
-jack_nframes_t
-MidiRegion::master_read_at (unsigned char *buf, unsigned char *mixdown_buffer, char * workbuf, jack_nframes_t position,
- jack_nframes_t cnt, uint32_t chan_n) const
-{
- return _read_at (master_sources, buf, mixdown_buffer, workbuf, position, cnt, chan_n, 0, 0);
-}
-
-jack_nframes_t
-MidiRegion::_read_at (const SourceList& srcs, unsigned char *buf, unsigned char *mixdown_buffer, char * workbuf,
- jack_nframes_t position, jack_nframes_t cnt,
- uint32_t chan_n, jack_nframes_t read_frames, jack_nframes_t skip_frames) const
-{
- jack_nframes_t internal_offset;
- jack_nframes_t buf_offset;
- jack_nframes_t to_read;
-
/* precondition: caller has verified that we cover the desired section */
- if (chan_n >= sources.size()) {
- return 0; /* read nothing */
- }
+ assert(chan_n == 0);
if (position < _position) {
internal_offset = 0;
- buf_offset = _position - position;
- cnt -= buf_offset;
+ src_offset = _position - position;
+ dur -= src_offset;
} else {
internal_offset = position - _position;
- buf_offset = 0;
+ src_offset = 0;
}
if (internal_offset >= _length) {
return 0; /* read nothing */
}
-
- if ((to_read = min (cnt, _length - internal_offset)) == 0) {
+ if ((to_read = min (dur, _length - internal_offset)) == 0) {
return 0; /* read nothing */
}
- if (opaque()) {
- /* overwrite whatever is there */
- mixdown_buffer = buf + buf_offset;
- } else {
- mixdown_buffer += buf_offset;
- }
+ // FIXME: non-opaque MIDI regions not yet supported
+ assert(opaque());
if (muted()) {
return 0; /* read nothing */
_read_data_count = 0;
- if (srcs[chan_n]->read (mixdown_buffer, _start + internal_offset, to_read, workbuf) != to_read) {
- return 0; /* "read nothing" */
- }
-
- _read_data_count += srcs[chan_n]->read_data_count();
+ boost::shared_ptr<MidiSource> src = midi_source(chan_n);
+ src->set_note_mode(mode);
- if (!opaque()) {
+ 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 0
+ cerr << "\t\tsource read from " << _position << " - " << _start << " (" << _position - _start << ") "
+ << " start in source " << _start << " + " << internal_offset << " (" << _start + internal_offset << ") "
+ << " dur = " << to_read
+ << " offset = " << output_buffer_position
+ << " negoffset = " << negative_output_buffer_position
+ << endl;
+#endif
- /* gack. the things we do for users.
- */
+ if (src->midi_read (
+ dst, // destination buffer
+ _position - _start, // start position of the source in this read context
+ _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) {
+ return 0; /* "read nothing" */
+ }
- buf += buf_offset;
+ _read_data_count += src->read_data_count();
- for (jack_nframes_t n = 0; n < to_read; ++n) {
- buf[n] += mixdown_buffer[n];
- }
- }
-
return to_read;
}
-XMLNode&
-MidiRegion::get_state ()
-{
- return state (true);
-}
-
XMLNode&
MidiRegion::state (bool full)
{
XMLNode& node (Region::state (full));
- //XMLNode *child;
char buf[64];
char buf2[64];
LocaleGuard lg (X_("POSIX"));
- snprintf (buf, sizeof (buf), "0x%x", (int) _flags);
- node.add_property ("flags", buf);
+ node.add_property ("flags", enum_2_string (_flags));
- for (uint32_t n=0; n < sources.size(); ++n) {
+ // XXX these should move into Region
+
+ for (uint32_t n=0; n < _sources.size(); ++n) {
snprintf (buf2, sizeof(buf2), "source-%d", n);
- snprintf (buf, sizeof(buf), "%" PRIu64, sources[n]->id());
+ _sources[n]->id().print (buf, sizeof(buf));
node.add_property (buf2, buf);
}
- snprintf (buf, sizeof (buf), "%u", (uint32_t) sources.size());
- node.add_property ("channels", 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);
}
int
-MidiRegion::set_state (const XMLNode& node)
+MidiRegion::set_live_state (const XMLNode& node, Change& what_changed, bool send)
{
- const XMLNodeList& nlist = node.children();
const XMLProperty *prop;
LocaleGuard lg (X_("POSIX"));
- Region::set_state (node);
+ Region::set_live_state (node, what_changed, false);
+ uint32_t old_flags = _flags;
+
if ((prop = node.property ("flags")) != 0) {
- _flags = Flag (strtol (prop->value().c_str(), (char **) 0, 16));
+ _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);
}
- /* Now find envelope description and other misc child items */
-
- for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) {
-
- XMLNode *child;
- //XMLProperty *prop;
-
- child = (*niter);
- }
-
- return 0;
-}
-
-int
-MidiRegion::separate_by_channel (Session& session, vector<MidiRegion*>& v) const
-{
- SourceList srcs;
- string new_name;
-
- for (SourceList::const_iterator i = master_sources.begin(); i != master_sources.end(); ++i) {
-
- srcs.clear ();
- srcs.push_back (*i);
-
- /* generate a new name */
-
- if (session.region_name (new_name, _name)) {
- return -1;
- }
-
- /* create a copy with just one source */
-
- v.push_back (new MidiRegion (srcs, _start, _length, new_name, _layer, _flags));
- }
-
- return 0;
-}
-
-void
-MidiRegion::source_deleted (Source* ignored)
-{
- delete this;
-}
-
-void
-MidiRegion::lock_sources ()
-{
- SourceList::iterator i;
- set<MidiSource*> unique_srcs;
-
- for (i = sources.begin(); i != sources.end(); ++i) {
- unique_srcs.insert (*i);
- (*i)->use ();
+ if ((old_flags ^ _flags) & Muted) {
+ what_changed = Change (what_changed|MuteChanged);
}
-
- for (i = master_sources.begin(); i != master_sources.end(); ++i) {
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->use ();
- }
+ if ((old_flags ^ _flags) & Opaque) {
+ what_changed = Change (what_changed|OpacityChanged);
}
-}
-
-void
-MidiRegion::unlock_sources ()
-{
- SourceList::iterator i;
- set<MidiSource*> unique_srcs;
-
- for (i = sources.begin(); i != sources.end(); ++i) {
- unique_srcs.insert (*i);
- (*i)->release ();
+ if ((old_flags ^ _flags) & Locked) {
+ what_changed = Change (what_changed|LockChanged);
}
- for (i = master_sources.begin(); i != master_sources.end(); ++i) {
- if (unique_srcs.find (*i) == unique_srcs.end()) {
- (*i)->release ();
- }
+ if (send) {
+ send_change (what_changed);
}
-}
-
-vector<string>
-MidiRegion::master_source_names ()
-{
- SourceList::iterator i;
- vector<string> names;
- for (i = master_sources.begin(); i != master_sources.end(); ++i) {
- names.push_back((*i)->name());
- }
-
- return names;
-}
-
-bool
-MidiRegion::region_list_equivalent (const MidiRegion& other) const
-{
- return size_equivalent (other) && source_equivalent (other) && _name == other._name;
+ return 0;
}
-bool
-MidiRegion::source_equivalent (const MidiRegion& other) const
+int
+MidiRegion::set_state (const XMLNode& node)
{
- SourceList::const_iterator i;
- SourceList::const_iterator io;
+ /* Region::set_state() calls the virtual set_live_state(),
+ which will get us back to AudioRegion::set_live_state()
+ to handle the relevant stuff.
+ */
- for (i = sources.begin(), io = other.sources.begin(); i != sources.end() && io != other.sources.end(); ++i, ++io) {
- if ((*i)->id() != (*io)->id()) {
- return false;
- }
- }
-
- for (i = master_sources.begin(), io = other.master_sources.begin(); i != master_sources.end() && io != other.master_sources.end(); ++i, ++io) {
- if ((*i)->id() != (*io)->id()) {
- return false;
- }
- }
-
- return true;
+ return Region::set_state (node);
}
-bool
-MidiRegion::overlap_equivalent (const MidiRegion& other) const
+void
+MidiRegion::recompute_at_end ()
{
- return coverage (other.first_frame(), other.last_frame()) != OverlapNone;
-}
+ /* our length has changed
+ * (non destructively) "chop" notes that pass the end boundary, to
+ * prevent stuck notes.
+ */
+}
-bool
-MidiRegion::equivalent (const MidiRegion& other) const
+void
+MidiRegion::recompute_at_start ()
{
- return _start == other._start &&
- _position == other._position &&
- _length == other._length;
+ /* as above, but the shift was from the front
+ * maybe bump currently active note's note-ons up so they sound here?
+ * that could be undesireable in certain situations though.. maybe
+ * remove the note entirely, including it's note off? something needs to
+ * be done to keep the played MIDI sane to avoid messing up voices of
+ * polyhonic things etc........
+ */
}
-bool
-MidiRegion::size_equivalent (const MidiRegion& other) const
+int
+MidiRegion::separate_by_channel (ARDOUR::Session&, vector< boost::shared_ptr<Region> >&) const
{
- return _start == other._start &&
- _length == other._length;
+ // TODO
+ return -1;
}
-#if 0
int
-MidiRegion::exportme (Session& session, AudioExportSpecification& spec)
+MidiRegion::exportme (ARDOUR::Session&, ARDOUR::ExportSpecification&)
{
- const jack_nframes_t blocksize = 4096;
- jack_nframes_t to_read;
- int status = -1;
-
- spec.channels = sources.size();
-
- if (spec.prepare (blocksize, session.frame_rate())) {
- goto out;
- }
-
- spec.pos = 0;
- spec.total_frames = _length;
-
- while (spec.pos < _length && !spec.stop) {
-
-
- /* step 1: interleave */
-
- to_read = min (_length - spec.pos, blocksize);
-
- if (spec.channels == 1) {
-
- if (sources.front()->read (spec.dataF, _start + spec.pos, to_read, 0) != to_read) {
- goto out;
- }
-
- } else {
-
- Sample buf[blocksize];
-
- for (uint32_t chan = 0; chan < spec.channels; ++chan) {
-
- if (sources[chan]->read (buf, _start + spec.pos, to_read, 0) != to_read) {
- goto out;
- }
-
- for (jack_nframes_t x = 0; x < to_read; ++x) {
- spec.dataF[chan+(x*spec.channels)] = buf[x];
- }
- }
- }
-
- if (spec.process (to_read)) {
- goto out;
- }
-
- spec.pos += to_read;
- spec.progress = (double) spec.pos /_length;
-
- }
-
- status = 0;
-
- out:
- spec.running = false;
- spec.status = status;
- spec.clear();
-
- return status;
+ return -1;
}
-#endif
-Region*
-MidiRegion::get_parent()
+boost::shared_ptr<MidiSource>
+MidiRegion::midi_source (uint32_t n) const
{
-#if 0
- Region* r = 0;
-
- if (_playlist) {
- r = _playlist->session().find_whole_file_parent (*this);
- }
-
- return r;
-#endif
- return NULL;
+ // Guaranteed to succeed (use a static cast?)
+ return boost::dynamic_pointer_cast<MidiSource>(source(n));
}
-bool
-MidiRegion::speed_mismatch (float sr) const
+void
+MidiRegion::switch_source(boost::shared_ptr<Source> src)
{
-#if 0
- if (sources.empty()) {
- /* impossible, but ... */
- return false;
- }
+ boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
+ if (!msrc)
+ return;
- float fsr = sources.front()->sample_rate();
+ // MIDI regions have only one source
+ _sources.clear();
+ _sources.push_back(msrc);
- return fsr == sr;
-#endif
- return false;
+ set_name(msrc->name());
}
projects / ardour.git / blobdiff