X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fmidi_region.cc;h=936ce047eec35f2620641a37f2a3f0bbc9e37bf3;hb=d9cebc2edf8accded23c6f2a1caab73eb47a50fd;hp=27861677fd47a7ca2a3a52757c3dbf1cc5ff4e24;hpb=0f2f4d8efc7f3e1144c6f51fd17c1ab309056c3e;p=ardour.git diff --git a/libs/ardour/midi_region.cc b/libs/ardour/midi_region.cc index 27861677fd..936ce047ee 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 @@ -24,115 +24,91 @@ #include -#include -#include #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 using namespace std; using namespace ARDOUR; - -/** Basic MidiRegion constructor (one channel) */ -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)) -{ - assert(_name.find("/") == string::npos); -} - -/* Basic MidiRegion constructor (one channel) */ -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) -{ - assert(_name.find("/") == string::npos); -} +using namespace PBD; /* Basic MidiRegion constructor (many channels) */ -MidiRegion::MidiRegion (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) { - assert(_name.find("/") == string::npos); + 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 is part of an existing one */ -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) +MidiRegion::MidiRegion (boost::shared_ptr other, frameoffset_t offset, bool offset_relative) + : Region (other, offset, offset_relative) { - assert(_name.find("/") == string::npos); + assert(_name.val().find("/") == string::npos); + midi_source(0)->Switched.connect_same_thread (*this, boost::bind (&MidiRegion::switch_source, this, _1)); } -MidiRegion::MidiRegion (boost::shared_ptr other) - : Region (other) +MidiRegion::~MidiRegion () { - assert(_name.find("/") == string::npos); } -MidiRegion::MidiRegion (boost::shared_ptr src, const XMLNode& node) - : Region (src, node) +void +MidiRegion::set_position_internal (framepos_t pos, bool allow_bbt_recompute) { - if (set_state (node)) { - throw failed_constructor(); - } - - assert(_name.find("/") == string::npos); - assert(_type == DataType::MIDI); -} + BeatsFramesConverter old_converter(_session.tempo_map(), _position - _start); + double length_beats = old_converter.from(_length); -MidiRegion::MidiRegion (SourceList& srcs, const XMLNode& node) - : Region (srcs, node) -{ - if (set_state (node)) { - throw failed_constructor(); - } + Region::set_position_internal(pos, allow_bbt_recompute); - assert(_name.find("/") == string::npos); - assert(_type == DataType::MIDI); -} + BeatsFramesConverter new_converter(_session.tempo_map(), pos - _start); -MidiRegion::~MidiRegion () -{ + set_length(new_converter.to(length_beats), 0); } -nframes_t -MidiRegion::read_at (MidiRingBuffer& out, nframes_t position, nframes_t dur, uint32_t chan_n) const +framecnt_t +MidiRegion::read_at (Evoral::EventSink& 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); + return _read_at (_sources, out, position, dur, chan_n, mode, tracker); } -nframes_t -MidiRegion::master_read_at (MidiRingBuffer& out, nframes_t position, nframes_t dur, uint32_t chan_n) const +framecnt_t +MidiRegion::master_read_at (MidiRingBuffer& out, framepos_t position, framecnt_t dur, uint32_t chan_n, NoteMode mode) const { - return _read_at (_master_sources, out, position, dur, chan_n); + return _read_at (_master_sources, out, position, dur, chan_n, mode); /* no tracker */ } -nframes_t -MidiRegion::_read_at (const SourceList& srcs, MidiRingBuffer& dst, nframes_t position, nframes_t dur, uint32_t chan_n) const +framecnt_t +MidiRegion::_read_at (const SourceList& /*srcs*/, Evoral::EventSink& dst, framepos_t position, framecnt_t dur, uint32_t chan_n, + NoteMode mode, MidiStateTracker* tracker) const { - // cerr << _name << "._read_at(" << position << ") - " << _position << endl; + frameoffset_t internal_offset = 0; + frameoffset_t src_offset = 0; + framecnt_t to_read = 0; - nframes_t internal_offset = 0; - nframes_t src_offset = 0; - nframes_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) { internal_offset = 0; src_offset = _position - position; @@ -145,23 +121,44 @@ MidiRegion::_read_at (const SourceList& srcs, MidiRingBuffer& dst, nframes_t pos 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()) { - return 0; /* read nothing */ - } - _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); + + 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;*/ + + 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" */ } @@ -169,18 +166,16 @@ MidiRegion::_read_at (const SourceList& srcs, MidiRingBuffer& dst, nframes_t pos 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); + + // XXX these should move into Region for (uint32_t n=0; n < _sources.size(); ++n) { snprintf (buf2, sizeof(buf2), "source-%d", n); @@ -188,13 +183,10 @@ MidiRegion::state (bool full) 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) { @@ -205,30 +197,9 @@ MidiRegion::state (bool full) } int -MidiRegion::set_state (const XMLNode& node) +MidiRegion::set_state (const XMLNode& node, int version) { - const XMLNodeList& nlist = node.children(); - const XMLProperty *prop; - LocaleGuard lg (X_("POSIX")); - - Region::set_state (node); - - if ((prop = node.property ("flags")) != 0) { - _flags = Flag (strtol (prop->value().c_str(), (char **) 0, 16)); - } - - /* Now find child items */ - for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) { - - XMLNode *child; - //XMLProperty *prop; - - child = (*niter); - - /** Hello, children */ - } - - return 0; + return Region::set_state (node, version); } void @@ -238,7 +209,7 @@ MidiRegion::recompute_at_end () * (non destructively) "chop" notes that pass the end boundary, to * prevent stuck notes. */ -} +} void MidiRegion::recompute_at_start () @@ -253,33 +224,15 @@ 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 { - // Separate by MIDI channel? bit different from audio since this is separating based - // on the actual contained data and destructively modifies and creates new sources.. - -#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; } @@ -290,3 +243,18 @@ 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()); +} +