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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2002-2011 Werner Schweer
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#include "score.h"
#include "excerpt.h"
#include "instrument.h"
#include "part.h"
namespace Ms {
//---------------------------------------------------------
// rebuildMidiMapping
//---------------------------------------------------------
void MasterScore::rebuildMidiMapping()
{
Score* playbackScore = _playbackScore ? _playbackScore : this;
setPlaybackScore(nullptr);
removeDeletedMidiMapping();
int maxport = updateMidiMapping();
reorderMidiMapping();
rebuildExcerptsMidiMapping();
masterScore()->setMidiPortCount(maxport);
setPlaybackScore(playbackScore);
}
//---------------------------------------------------------
// checkMidiMapping
// midi mapping is simple if all ports and channels
// don't decrease and don't have 'holes' except drum tracks
//---------------------------------------------------------
void MasterScore::checkMidiMapping()
{
isSimpleMidiMaping = true;
rebuildMidiMapping();
QList<bool> drum;
drum.reserve(int(_midiMapping.size()));
for (Part* part : parts()) {
const InstrumentList* il = part->instruments();
for (auto i = il->begin(); i != il->end(); ++i) {
const Instrument* instr = i->second;
for (int j = 0; j < instr->channel().size(); ++j)
drum.append(instr->useDrumset());
}
}
int lastChannel = -1; // port*16+channel
int lastDrumPort = -1;
int index = 0;
for (const MidiMapping& m : _midiMapping) {
if (index >= drum.size())
break;
if (drum[index]) {
lastDrumPort++;
if (m.port() != lastDrumPort) {
isSimpleMidiMaping = false;
return;
}
}
else {
lastChannel++;
if (lastChannel % 16 == 9)
lastChannel++;
int p = lastChannel / 16;
int c = lastChannel % 16;
if (m.port() != p || m.channel() != c) {
isSimpleMidiMaping = false;
return;
}
}
index++;
}
}
//---------------------------------------------------------
// getNextFreeMidiMapping
//---------------------------------------------------------
int MasterScore::getNextFreeMidiMapping(int p, int ch)
{
if (ch != -1 && p != -1)
return p*16+ch;
else if (ch != -1 && p == -1) {
for (int port = 0;; port++) {
if (!occupiedMidiChannels.contains(port*16+ch)) {
occupiedMidiChannels.insert(port*16+ch);
return port*16+ch;
}
}
}
else if (ch == -1 && p != -1) {
for (int channel = 0; channel < 16; channel++) {
if (channel != 9 && !occupiedMidiChannels.contains(p*16+channel)) {
occupiedMidiChannels.insert(p*16+channel);
return p*16+channel;
}
}
}
for (;;searchMidiMappingFrom++) {
if (searchMidiMappingFrom % 16 != 9 && !occupiedMidiChannels.contains(searchMidiMappingFrom)) {
occupiedMidiChannels.insert(searchMidiMappingFrom);
return searchMidiMappingFrom;
}
}
}
//---------------------------------------------------------
// getNextFreeDrumMidiMapping
//---------------------------------------------------------
int MasterScore::getNextFreeDrumMidiMapping()
{
for (int i = 0;; i++) {
if (!occupiedMidiChannels.contains(i*16+9)) {
occupiedMidiChannels.insert(i*16+9);
return i*16+9;
}
}
}
//---------------------------------------------------------
// rebuildExcerptsMidiMapping
//---------------------------------------------------------
void MasterScore::rebuildExcerptsMidiMapping()
{
for (Excerpt* ex : excerpts()) {
for (Part* p : ex->partScore()->parts()) {
const Part* masterPart = p->masterPart();
if (!masterPart->score()->isMaster()) {
qWarning("reorderMidiMapping: no part in master score is linked");
continue;
}
Q_ASSERT(p->instruments()->size() == masterPart->instruments()->size());
for (const auto& item : *masterPart->instruments()) {
const Instrument* iMaster = item.second;
const int tick = item.first;
Instrument* iLocal = p->instrument(Fraction::fromTicks(tick));
const int nchannels = iMaster->channel().size();
if (iLocal->channel().size() != nchannels) {
// may happen, e.g., if user changes an instrument
(*iLocal) = (*iMaster);
continue;
}
for (int c = 0; c < nchannels; ++c) {
Channel* cLocal = iLocal->channel(c);
const Channel* cMaster = iMaster->channel(c);
cLocal->setChannel(cMaster->channel());
}
}
}
}
}
//---------------------------------------------------------
// reorderMidiMapping
// Set mappings in order you see in Add->Instruments
//---------------------------------------------------------
void MasterScore::reorderMidiMapping()
{
using std::swap;
int sequenceNumber = 0;
for (Part* part : parts()) {
const InstrumentList* il = part->instruments();
for (auto i = il->begin(); i != il->end(); ++i) {
const Instrument* instr = i->second;
for (Channel* channel : instr->channel()) {
if (!(_midiMapping[sequenceNumber].part() == part
&& _midiMapping[sequenceNumber].masterChannel == channel)) {
int shouldBe = channel->channel();
swap(_midiMapping[sequenceNumber], _midiMapping[shouldBe]);
_midiMapping[sequenceNumber].articulation()->setChannel(sequenceNumber);
channel->setChannel(sequenceNumber);
_midiMapping[shouldBe].articulation()->setChannel(shouldBe);
}
sequenceNumber++;
}
}
}
}
//---------------------------------------------------------
// removeDeletedMidiMapping
// Remove mappings to deleted instruments
//---------------------------------------------------------
void MasterScore::removeDeletedMidiMapping()
{
int removeOffset = 0;
int mappingSize = int(_midiMapping.size());
for (int index = 0; index < mappingSize; index++) {
Part* p = midiMapping(index)->part();
if (!parts().contains(p)) {
removeOffset++;
continue;
}
// Not all channels could exist
bool channelExists = false;
const InstrumentList* il = p->instruments();
for (auto i = il->begin(); i != il->end() && !channelExists; ++i) {
const Instrument* instr = i->second;
channelExists = (_midiMapping[index].articulation()->channel() != -1
&& instr->channel().contains(_midiMapping[index].masterChannel)
&& !(_midiMapping[index].port() == -1 && _midiMapping[index].channel() == -1));
if (channelExists)
break;
}
if (!channelExists) {
removeOffset++;
continue;
}
// Let's do a left shift by 'removeOffset' items if necessary
if (index != 0 && removeOffset != 0) {
_midiMapping[index-removeOffset] = std::move(_midiMapping[index]);
const int chanVal = _midiMapping[index-removeOffset].articulation()->channel();
_midiMapping[index-removeOffset].articulation()->setChannel(chanVal - removeOffset);
}
}
// We have 'removeOffset' deleted instruments, let's remove their mappings
for (int index = 0; index < removeOffset; index++)
_midiMapping.pop_back();
}
//---------------------------------------------------------
// updateMidiMapping
// Add mappings to new instruments and repair existing ones
//---------------------------------------------------------
int MasterScore::updateMidiMapping()
{
int maxport = 0;
occupiedMidiChannels.clear();
searchMidiMappingFrom = 0;
occupiedMidiChannels.reserve(int(_midiMapping.size())); // Bringing down the complexity of insertion to amortized O(1)
for (const MidiMapping& mm :_midiMapping) {
if (mm.port() == -1 || mm.channel() == -1)
continue;
occupiedMidiChannels.insert((int)(mm.port())*16+(int)mm.channel());
if (maxport < mm.port())
maxport = mm.port();
}
for (Part* part : parts()) {
const InstrumentList* il = part->instruments();
for (auto i = il->begin(); i != il->end(); ++i) {
const Instrument* instr = i->second;
bool drum = instr->useDrumset();
for (Channel* channel : instr->channel()) {
bool channelExists = false;
for (const MidiMapping& mapping: _midiMapping) {
if (channel == mapping.masterChannel && channel->channel() != -1) {
channelExists = true;
break;
}
}
// Channel could already exist, but have unassigned port or channel. Repair and continue
if (channelExists) {
if (_midiMapping[channel->channel()].port() == -1) {
const int nm = getNextFreeMidiMapping(-1, _midiMapping[channel->channel()].channel());
_midiMapping[channel->channel()]._port = nm / 16;
}
else if (_midiMapping[channel->channel()].channel() == -1) {
if (drum) {
_midiMapping[channel->channel()]._port = getNextFreeDrumMidiMapping() / 16;
_midiMapping[channel->channel()]._channel = 9;
continue;
}
int nm = getNextFreeMidiMapping(_midiMapping[channel->channel()].port());
_midiMapping[channel->channel()]._port = nm / 16;
_midiMapping[channel->channel()]._channel = nm % 16;
}
continue;
}
int midiPort;
int midiChannel;
if (drum) {
midiPort = getNextFreeDrumMidiMapping() / 16;
midiChannel = 9;
}
else {
int nm = getNextFreeMidiMapping();
midiPort = nm / 16;
midiChannel = nm % 16;
}
if (midiPort > maxport)
maxport = midiPort;
addMidiMapping(channel, part, midiPort, midiChannel);
}
}
}
return maxport;
}
//---------------------------------------------------------
// addMidiMapping
//---------------------------------------------------------
void MasterScore::addMidiMapping(Channel* channel, Part* part, int midiPort, int midiChannel)
{
if (!part->score()->isMaster())
return;
MidiMapping mm;
mm._part = part;
mm.masterChannel = channel;
mm._articulation.reset(new Channel(*channel));
mm.link = PartChannelSettingsLink(mm.articulation(), mm.masterChannel, /* excerpt */ false);
mm._port = midiPort;
mm._channel = midiChannel;
const int mscoreChannel = int(_midiMapping.size());
mm._articulation->setChannel(mscoreChannel);
mm.masterChannel->setChannel(mscoreChannel);
_midiMapping.push_back(std::move(mm));
}
//---------------------------------------------------------
// updateMidiMapping
//---------------------------------------------------------
void MasterScore::updateMidiMapping(Channel* channel, Part* part, int midiPort, int midiChannel)
{
const int c = channel->channel();
if (c < 0)
return;
if (c >= int(masterScore()->midiMapping().size())) {
qDebug("Can't set midi channel: midiMapping is empty!");
return;
}
MidiMapping& mm = _midiMapping[c];
if (midiChannel != -1)
mm._channel = midiChannel;
if (midiPort != -1)
mm._port = midiPort;
if (part)
mm._part = part->masterPart();
}
} // namespace Ms
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