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/***************************************************************************
playerinfo.cpp - Helper class to have easy access
to a lot of data (singleton)
-------------------
copyright : (C) 2007 by Wesley Stessens
***************************************************************************/
/***************************************************************************
* *
* 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 *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "mixer/playerinfo.h"
#include <QMutexLocker>
#include "control/controlobject.h"
#include "engine/channels/enginechannel.h"
#include "engine/enginexfader.h"
#include "mixer/playermanager.h"
namespace {
const int kPlayingDeckUpdateIntervalMillis = 2000;
PlayerInfo* s_pPlayerInfo = nullptr;
}
PlayerInfo::PlayerInfo()
: m_pCOxfader(new ControlProxy("[Master]","crossfader", this)),
m_currentlyPlayingDeck(-1) {
startTimer(kPlayingDeckUpdateIntervalMillis);
}
PlayerInfo::~PlayerInfo() {
m_loadedTrackMap.clear();
clearControlCache();
}
// static
PlayerInfo& PlayerInfo::instance() {
if (!s_pPlayerInfo) {
s_pPlayerInfo = new PlayerInfo();
}
return *s_pPlayerInfo;
}
// static
void PlayerInfo::destroy() {
delete s_pPlayerInfo;
s_pPlayerInfo = nullptr;
}
TrackPointer PlayerInfo::getTrackInfo(const QString& group) {
QMutexLocker locker(&m_mutex);
return m_loadedTrackMap.value(group);
}
void PlayerInfo::setTrackInfo(const QString& group, const TrackPointer& track) {
TrackPointer pOld;
{ // Scope
QMutexLocker locker(&m_mutex);
pOld = m_loadedTrackMap.value(group);
m_loadedTrackMap.insert(group, track);
}
if (pOld) {
emit trackUnloaded(group, pOld);
}
emit trackLoaded(group, track);
}
bool PlayerInfo::isTrackLoaded(const TrackPointer& pTrack) const {
QMutexLocker locker(&m_mutex);
QMapIterator<QString, TrackPointer> it(m_loadedTrackMap);
while (it.hasNext()) {
it.next();
if (it.value() == pTrack) {
return true;
}
}
return false;
}
QMap<QString, TrackPointer> PlayerInfo::getLoadedTracks() {
QMutexLocker locker(&m_mutex);
QMap<QString, TrackPointer> ret = m_loadedTrackMap;
return ret;
}
bool PlayerInfo::isFileLoaded(const QString& track_location) const {
QMutexLocker locker(&m_mutex);
QMapIterator<QString, TrackPointer> it(m_loadedTrackMap);
while (it.hasNext()) {
it.next();
TrackPointer pTrack = it.value();
if (pTrack) {
if (pTrack->getLocation() == track_location) {
return true;
}
}
}
return false;
}
void PlayerInfo::timerEvent(QTimerEvent* pTimerEvent) {
Q_UNUSED(pTimerEvent);
updateCurrentPlayingDeck();
}
void PlayerInfo::updateCurrentPlayingDeck() {
QMutexLocker locker(&m_mutex);
double maxVolume = 0;
int maxDeck = -1;
for (int i = 0; i < (int)PlayerManager::numDecks(); ++i) {
DeckControls* pDc = getDeckControls(i);
if (pDc->m_play.get() == 0.0) {
continue;
}
if (pDc->m_pregain.get() <= 0.25) {
continue;
}
double fvol = pDc->m_volume.get();
if (fvol == 0.0) {
continue;
}
double xfl, xfr;
// TODO: supply correct parameters to the function. If the hamster style
// for the crossfader is enabled, the result is currently wrong.
EngineXfader::getXfadeGains(m_pCOxfader->get(), 1.0, 0.0, MIXXX_XFADER_ADDITIVE, false,
&xfl, &xfr);
int orient = pDc->m_orientation.get();
double xfvol;
if (orient == EngineChannel::LEFT) {
xfvol = xfl;
} else if (orient == EngineChannel::RIGHT) {
xfvol = xfr;
} else {
xfvol = 1.0;
}
double dvol = fvol * xfvol;
if (dvol > maxVolume) {
maxDeck = i;
maxVolume = dvol;
}
}
if (maxDeck != m_currentlyPlayingDeck) {
m_currentlyPlayingDeck = maxDeck;
locker.unlock();
emit currentPlayingDeckChanged(maxDeck);
emit currentPlayingTrackChanged(getCurrentPlayingTrack());
}
}
int PlayerInfo::getCurrentPlayingDeck() {
QMutexLocker locker(&m_mutex);
return m_currentlyPlayingDeck;
}
TrackPointer PlayerInfo::getCurrentPlayingTrack() {
int deck = getCurrentPlayingDeck();
if (deck >= 0) {
return getTrackInfo(PlayerManager::groupForDeck(deck));
}
return TrackPointer();
}
PlayerInfo::DeckControls* PlayerInfo::getDeckControls(int i) {
if (m_deckControlList.count() == i) {
QString group = PlayerManager::groupForDeck(i);
m_deckControlList.append(new DeckControls(group));
}
return m_deckControlList[i];
}
void PlayerInfo::clearControlCache() {
for (int i = 0; i < m_deckControlList.count(); ++i) {
delete m_deckControlList[i];
}
m_deckControlList.clear();
}
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