X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_region.cc;h=9b7a4b87480471c17a01a30d01c4d72d356559f1;hb=33da74c8e353ac56194956cae8e2b7d74ec1a1b0;hp=c4816d812179e28204b7998cb52009f5d470d93a;hpb=82232f06ba3eea4a2b4342ad91fab552f4044402;p=ardour.git diff --git a/libs/ardour/midi_region.cc b/libs/ardour/midi_region.cc index c4816d8121..9b7a4b8748 100644 --- a/libs/ardour/midi_region.cc +++ b/libs/ardour/midi_region.cc @@ -1,5 +1,5 @@ /* - 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 @@ -29,17 +29,18 @@ #include -#include -#include +#include "pbd/basename.h" +#include "pbd/xml++.h" +#include "pbd/enumwriter.h" -#include -#include -#include -#include -#include -#include -#include -#include +#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 @@ -48,170 +49,111 @@ using namespace std; using namespace ARDOUR; /** Basic MidiRegion constructor (one channel) */ -MidiRegion::MidiRegion (boost::shared_ptr src, jack_nframes_t start, jack_nframes_t length) +MidiRegion::MidiRegion (boost::shared_ptr 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)) { - save_state ("initial state"); - assert(_name.find("/") == string::npos); + midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source)); } /* Basic MidiRegion constructor (one channel) */ -MidiRegion::MidiRegion (boost::shared_ptr src, jack_nframes_t start, jack_nframes_t length, const string& name, layer_t layer, Flag flags) +MidiRegion::MidiRegion (boost::shared_ptr src, nframes_t start, nframes_t length, const string& name, layer_t layer, Flag flags) : Region (src, start, length, name, DataType::MIDI, layer, flags) { - save_state ("initial state"); - assert(_name.find("/") == string::npos); + midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source)); } /* Basic MidiRegion constructor (many channels) */ -MidiRegion::MidiRegion (SourceList& srcs, jack_nframes_t start, jack_nframes_t length, const string& name, layer_t layer, Flag flags) +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) { - save_state ("initial state"); - assert(_name.find("/") == string::npos); + midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source)); } /** Create a new MidiRegion, that is part of an existing one */ -MidiRegion::MidiRegion (boost::shared_ptr other, jack_nframes_t offset, jack_nframes_t length, const string& name, layer_t layer, Flag flags) +MidiRegion::MidiRegion (boost::shared_ptr other, nframes_t offset, nframes_t length, const string& name, layer_t layer, Flag flags) : Region (other, offset, length, name, layer, flags) { - save_state ("initial state"); - assert(_name.find("/") == string::npos); + midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source)); } MidiRegion::MidiRegion (boost::shared_ptr other) : Region (other) { - save_state ("initial state"); - assert(_name.find("/") == string::npos); + midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source)); } MidiRegion::MidiRegion (boost::shared_ptr src, const XMLNode& node) : Region (src, node) { - if (set_state (node)) { + if (set_state (node, Stateful::loading_state_version)) { throw failed_constructor(); } - save_state ("initial state"); - + 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) +MidiRegion::MidiRegion (const SourceList& srcs, const XMLNode& node) : Region (srcs, node) { - if (set_state (node)) { + if (set_state (node, Stateful::loading_state_version)) { throw failed_constructor(); } - save_state ("initial state"); - + midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegion::switch_source)); assert(_name.find("/") == string::npos); assert(_type == DataType::MIDI); } MidiRegion::~MidiRegion () { - GoingAway (); /* EMIT SIGNAL */ } -StateManager::State* -MidiRegion::state_factory (std::string why) const +void +MidiRegion::set_position_internal (nframes_t pos, bool allow_bbt_recompute) { - RegionState* state = new RegionState (why); + BeatsFramesConverter old_converter(_session, _position - _start); + double length_beats = old_converter.from(_length); - Region::store_state (*state); + Region::set_position_internal(pos, allow_bbt_recompute); - return state; -} + BeatsFramesConverter new_converter(_session, pos - _start); -Change -MidiRegion::restore_state (StateManager::State& sstate) -{ - RegionState* state = dynamic_cast (&sstate); - Change what_changed = Region::restore_and_return_flags (*state); - - if (_flags != Flag (state->_flags)) { - - //uint32_t old_flags = _flags; - - _flags = Flag (state->_flags); - } - - what_changed = Change (what_changed); - - return what_changed; + set_length(new_converter.to(length_beats), 0); } -UndoAction -MidiRegion::get_memento() const +nframes_t +MidiRegion::read_at (MidiRingBuffer& out, sframes_t position, nframes_t dur, uint32_t chan_n, NoteMode mode, MidiStateTracker* tracker) const { - return sigc::bind (mem_fun (*(const_cast (this)), &StateManager::use_state), _current_state_id); + return _read_at (_sources, out, position, dur, chan_n, mode, tracker); } -jack_nframes_t -MidiRegion::read_at (MidiRingBuffer& out, jack_nframes_t position, - jack_nframes_t dur, - uint32_t chan_n, jack_nframes_t read_frames, jack_nframes_t skip_frames) const +nframes_t +MidiRegion::master_read_at (MidiRingBuffer& out, sframes_t position, nframes_t dur, uint32_t chan_n, NoteMode mode) const { - return _read_at (_sources, out, position, dur, chan_n, read_frames, skip_frames); + return _read_at (_master_sources, out, position, dur, chan_n, mode); /* no tracker */ } -jack_nframes_t -MidiRegion::master_read_at (MidiRingBuffer& out, jack_nframes_t position, - jack_nframes_t dur, uint32_t chan_n) const +nframes_t +MidiRegion::_read_at (const SourceList& /*srcs*/, + MidiRingBuffer& dst, sframes_t position, nframes_t dur, uint32_t chan_n, + NoteMode mode, MidiStateTracker* tracker) const { - return _read_at (_master_sources, out, position, dur, chan_n, 0, 0); -} + nframes_t internal_offset = 0; + nframes_t src_offset = 0; + nframes_t to_read = 0; -jack_nframes_t -MidiRegion::_read_at (const SourceList& srcs, MidiRingBuffer& dst, - jack_nframes_t position, jack_nframes_t dur, - uint32_t chan_n, jack_nframes_t read_frames, jack_nframes_t skip_frames) const -{ -/* - MidiEvent ev; - RawMidi data[4]; - - const char note = rand()%30 + 30; - - ev.buffer = data; - ev.time = position; - ev.size = 3; - data[0] = 0x90; - data[1] = note; - data[2] = 120; - dst.write(ev); - - ev.buffer = data; - ev.time = (jack_nframes_t)(position + (9/10.0 * dur)); - assert(ev.time < position + dur); - ev.size = 3; - data[0] = 0x80; - data[1] = note; - data[2] = 64; - dst.write(ev); - - _read_data_count += dur; - - return dur; -*/ - jack_nframes_t internal_offset = 0; - jack_nframes_t src_offset = 0; - jack_nframes_t to_read = 0; - /* precondition: caller has verified that we cover the desired section */ assert(chan_n == 0); - + if (position < _position) { internal_offset = 0; src_offset = _position - position; @@ -224,7 +166,6 @@ MidiRegion::_read_at (const SourceList& srcs, MidiRingBuffer& dst, if (internal_offset >= _length) { return 0; /* read nothing */ } - if ((to_read = min (dur, _length - internal_offset)) == 0) { return 0; /* read nothing */ @@ -240,40 +181,67 @@ MidiRegion::_read_at (const SourceList& srcs, MidiRingBuffer& dst, _read_data_count = 0; boost::shared_ptr src = midi_source(chan_n); - if (src->read (dst, _start + internal_offset, to_read, _position) != to_read) { + src->set_note_mode(mode); + + 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 + + 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 + tracker + ) != to_read) { return 0; /* "read nothing" */ } - _read_data_count += src->read_data_count(); // FIXME: semantics? + _read_data_count += src->read_data_count(); return to_read; } - + 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)); + + // 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); + _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); - - child = node.add_child ("Envelope"); - - if ( ! full) { - child->add_property ("default", "yes"); + 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) { @@ -284,32 +252,52 @@ MidiRegion::state (bool full) } int -MidiRegion::set_state (const XMLNode& node) +MidiRegion::set_live_state (const XMLNode& node, int version, 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, version, 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); + } + + 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); } - /* Now find child items */ - for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) { - - XMLNode *child; - //XMLProperty *prop; - - child = (*niter); - - /** Hello, children */ + if (send) { + send_change (what_changed); } return 0; } +int +MidiRegion::set_state (const XMLNode& node, int version) +{ + /* Region::set_state() calls the virtual set_live_state(), + which will get us back to AudioRegion::set_live_state() + to handle the relevant stuff. + */ + + return Region::set_state (node, version); +} + void MidiRegion::recompute_at_end () { @@ -317,7 +305,7 @@ MidiRegion::recompute_at_end () * (non destructively) "chop" notes that pass the end boundary, to * prevent stuck notes. */ -} +} void MidiRegion::recompute_at_start () @@ -332,30 +320,15 @@ MidiRegion::recompute_at_start () } int -MidiRegion::separate_by_channel (Session& session, vector& v) const +MidiRegion::separate_by_channel (ARDOUR::Session&, vector< boost::shared_ptr >&) const { -#if 0 - 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)); - } -#endif + // TODO + return -1; +} - // Actually, I would prefer not if that's alright +int +MidiRegion::exportme (ARDOUR::Session&, ARDOUR::ExportSpecification&) +{ return -1; } @@ -366,3 +339,18 @@ MidiRegion::midi_source (uint32_t n) const return boost::dynamic_pointer_cast(source(n)); } + +void +MidiRegion::switch_source(boost::shared_ptr src) +{ + boost::shared_ptr msrc = boost::dynamic_pointer_cast(src); + if (!msrc) + return; + + // MIDI regions have only one source + _sources.clear(); + _sources.push_back(msrc); + + set_name(msrc->name()); +} +