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/engine/src/universe.cpp

/*
  Q Light Controller Plus
  universe.cpp

  Copyright (c) Massimo Callegari

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0.txt

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

#include <QXmlStreamReader>
#include <QXmlStreamWriter>
#include <QDebug>
#include <math.h>

#include "channelmodifier.h"
#include "inputoutputmap.h"
#include "genericfader.h"
#include "qlcioplugin.h"
#include "outputpatch.h"
#include "grandmaster.h"
#include "mastertimer.h"
#include "inputpatch.h"
#include "qlcmacros.h"
#include "universe.h"
#include "function.h"
#include "qlcfile.h"
#include "utils.h"

#define RELATIVE_ZERO_8BIT   0x7F
#define RELATIVE_ZERO_16BIT  0x7F00

#define KXMLUniverseNormalBlend "Normal"
#define KXMLUniverseMaskBlend "Mask"
#define KXMLUniverseAdditiveBlend "Additive"
#define KXMLUniverseSubtractiveBlend "Subtractive"

Universe::Universe(quint32 id, GrandMaster *gm, QObject *parent)
    : QThread(parent)
    , m_id(id)
    , m_grandMaster(gm)
    , m_passthrough(false)
    , m_monitor(false)
    , m_inputPatch(NULL)
    , m_fbPatch(NULL)
    , m_channelsMask(new QByteArray(UNIVERSE_SIZE, char(0)))
    , m_modifiedZeroValues(new QByteArray(UNIVERSE_SIZE, char(0)))
    , m_running(false)
#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
    , m_fadersMutex(QMutex::Recursive)
#endif
    , m_usedChannels(0)
    , m_totalChannels(0)
    , m_totalChannelsChanged(false)
    , m_intensityChannelsChanged(false)
    , m_preGMValues(new QByteArray(UNIVERSE_SIZE, char(0)))
    , m_postGMValues(new QByteArray(UNIVERSE_SIZE, char(0)))
    , m_lastPostGMValues(new QByteArray(UNIVERSE_SIZE, char(0)))
    , m_blackoutValues(new QByteArray(UNIVERSE_SIZE, char(0)))
    , m_passthroughValues()
{
    m_modifiers.fill(NULL, UNIVERSE_SIZE);

    m_name = QString("Universe %1").arg(id + 1);

    connect(m_grandMaster, SIGNAL(valueChanged(uchar)),
            this, SLOT(slotGMValueChanged()));
}

Universe::~Universe()
{
    if (isRunning() == true)
    {
        // isRunning is inconsistent with m_running,
        // so double check if the thread is really in the run loop
        while (m_running == false)
            usleep(10000);

        m_running = false;
        wait(1000);
    }

    delete m_inputPatch;
    int opCount = m_outputPatchList.count();
    for (int i = 0; i < opCount; i++)
    {
        OutputPatch *patch = m_outputPatchList.takeLast();
        delete patch;
    }
    delete m_fbPatch;
}

void Universe::setName(QString name)
{
    if (name.isEmpty())
        m_name = QString("Universe %1").arg(m_id + 1);
    else
        m_name = name;
    emit nameChanged();
}

QString Universe::name() const
{
    return m_name;
}

void Universe::setID(quint32 id)
{
    m_id = id;
}

quint32 Universe::id() const
{
    return m_id;
}

ushort Universe::usedChannels()
{
    return m_usedChannels;
}

ushort Universe::totalChannels()
{
    return m_totalChannels;
}

bool Universe::hasChanged()
{
    bool changed =
        memcmp(m_lastPostGMValues->constData(), m_postGMValues->constData(), m_usedChannels) != 0;
    if (changed)
        memcpy(m_lastPostGMValues->data(), m_postGMValues->constData(), m_usedChannels);
    return changed;
}

void Universe::setPassthrough(bool enable)
{
    if (enable == m_passthrough)
        return;

    qDebug() << "Set universe" << id() << "passthrough to" << enable;

    disconnectInputPatch();

    if (enable && m_passthroughValues.isNull())
    {
        // When passthrough is disabled, we don't release the array, since it's only ~512 B and
        // we would have to synchronize with other threads

        // When enabling passthrough, make sure the array is allocated BEFORE m_passthrough is set to
        // true. That way we only have to check for m_passthrough, and do not need to check
        // m_passthroughValues.isNull()
        m_passthroughValues.reset(new QByteArray(UNIVERSE_SIZE, char(0)));
    }

    m_passthrough = enable;

    connectInputPatch();

    emit passthroughChanged();
}

bool Universe::passthrough() const
{
    return m_passthrough;
}

void Universe::setMonitor(bool enable)
{
    m_monitor = enable;
}

bool Universe::monitor() const
{
    return m_monitor;
}

void Universe::slotGMValueChanged()
{
    {
        for (int i = 0; i < m_intensityChannels.size(); ++i)
        {
            int channel = m_intensityChannels.at(i);
            updatePostGMValue(channel);
        }
    }

    if (m_grandMaster->channelMode() == GrandMaster::AllChannels)
    {
        for (int i = 0; i < m_nonIntensityChannels.size(); ++i)
        {
            int channel = m_nonIntensityChannels.at(i);
            updatePostGMValue(channel);
        }
    }
}

/************************************************************************
 * Faders
 ************************************************************************/

QSharedPointer<GenericFader> Universe::requestFader(Universe::FaderPriority priority)
{
    int insertPos = 0;
    QSharedPointer<GenericFader> fader = QSharedPointer<GenericFader>(new GenericFader());
    fader->setPriority(priority);

    {
        QMutexLocker fadersLocker(&m_fadersMutex);
        if (m_faders.isEmpty())
        {
            m_faders.append(fader);
        }
        else
        {
            for (int i = m_faders.count() - 1; i >= 0; i--)
            {
                QSharedPointer<GenericFader> f = m_faders.at(i);
                if (!f.isNull() && f->priority() <= fader->priority())
                {
                    insertPos = i + 1;
                    break;
                }
            }

            m_faders.insert(insertPos, fader);
        }

        qDebug() << "[Universe]" << id() << ": Generic fader with priority" << fader->priority()
                 << "registered at pos" << insertPos << ", count" << m_faders.count();
    }
    return fader;
}

void Universe::dismissFader(QSharedPointer<GenericFader> fader)
{
    QMutexLocker fadersLocker(&m_fadersMutex);
    int index = m_faders.indexOf(fader);
    if (index >= 0)
    {
        m_faders.takeAt(index);
        fader.clear();
    }
}

void Universe::requestFaderPriority(QSharedPointer<GenericFader> fader, Universe::FaderPriority priority)
{
    QMutexLocker fadersLocker(&m_fadersMutex);
    if (m_faders.contains(fader) == false)
        return;

    int pos = m_faders.indexOf(fader);
    int newPos = 0;

    for (int i = m_faders.count() - 1; i >= 0; i--)
    {
        QSharedPointer<GenericFader> f = m_faders.at(i);
        if (!f.isNull() && f->priority() <= priority)
        {
            newPos = i;
            fader->setPriority(priority);
            break;
        }
    }

    if (newPos != pos)
    {
        m_faders.move(pos, newPos);
        qDebug() << "[Universe]" << id() << ": Generic fader moved from" << pos
                 << "to" << m_faders.indexOf(fader) << ". Count:" << m_faders.count();
    }
}

QList<QSharedPointer<GenericFader> > Universe::faders()
{
    return m_faders;
}

void Universe::setFaderPause(quint32 functionID, bool enable)
{
    QMutexLocker fadersLocker(&m_fadersMutex);
    QMutableListIterator<QSharedPointer<GenericFader> > it(m_faders);
    while (it.hasNext())
    {
        QSharedPointer<GenericFader> fader = it.next();
        if (fader.isNull() || fader->parentFunctionID() != functionID)
            continue;

        fader->setPaused(enable);
    }
}

void Universe::setFaderFadeOut(int fadeTime)
{
    QMutexLocker fadersLocker(&m_fadersMutex);
    foreach (QSharedPointer<GenericFader> fader, m_faders)
    {
        if (!fader.isNull() && fader->parentFunctionID() != Function::invalidId())
            fader->setFadeOut(true, uint(fadeTime));
    }
}

void Universe::tick()
{
    m_semaphore.release(1);
}

void Universe::processFaders()
{
    flushInput();
    zeroIntensityChannels();

    {
        QMutexLocker fadersLocker(&m_fadersMutex);
        QMutableListIterator<QSharedPointer<GenericFader> > it(m_faders);
        while (it.hasNext())
        {
            QSharedPointer<GenericFader> fader = it.next(); //m_faders.at(i);
            if (fader.isNull())
                continue;

            // destroy a fader if it's been requested
            // and it's not fading out
            if (fader->deleteRequested() && !fader->isFadingOut())
            {
                fader->removeAll();
                it.remove();
                fader.clear();
                continue;
            }

            if (fader->isEnabled() == false)
                continue;

            //qDebug() << "Processing fader" << fader->name() << fader->channelsCount();
            fader->write(this);
        }
    }

    bool dataChanged = hasChanged();
    const QByteArray postGM = m_postGMValues->mid(0, m_usedChannels);
    dumpOutput(postGM, dataChanged);

    if (dataChanged)
        emit universeWritten(id(), postGM);
}

void Universe::run()
{
    m_running = true;
    int timeout = int(MasterTimer::tick()) * 2;

    qDebug() << "Universe thread started" << id();

    while (m_running)
    {
        if (m_semaphore.tryAcquire(1, timeout) == false)
        {
            //qWarning() << "Semaphore not acquired on universe" << id();
            continue;
        }
#if 0
        if (m_faders.count())
            qDebug() << "<<<<<<<< UNIVERSE TICK - id" << id() << "faders:" << m_faders.count();
#endif
        processFaders();
    }

    qDebug() << "Universe thread stopped" << id();
}

/************************************************************************
 * Values
 ************************************************************************/

void Universe::reset()
{
    m_preGMValues->fill(0);
    m_blackoutValues->fill(0);

    if (m_passthrough)
        (*m_postGMValues) = (*m_passthroughValues);
    else
        m_postGMValues->fill(0);

    m_modifiers.fill(NULL, UNIVERSE_SIZE);
    m_passthrough = false; // not releasing m_passthroughValues, see comment in setPassthrough
}

void Universe::reset(int address, int range)
{
    if (address >= UNIVERSE_SIZE)
        return;

    if (address + range > UNIVERSE_SIZE)
       range = UNIVERSE_SIZE - address;

    memset(m_preGMValues->data() + address, 0, range * sizeof(*m_preGMValues->data()));
    memset(m_blackoutValues->data() + address, 0, range * sizeof(*m_blackoutValues->data()));
    memcpy(m_postGMValues->data() + address, m_modifiedZeroValues->data() + address, range * sizeof(*m_postGMValues->data()));

    applyPassthroughValues(address, range);
}

void Universe::applyPassthroughValues(int address, int range)
{
    if (!m_passthrough)
        return;

    for (int i = address; i < address + range && i < UNIVERSE_SIZE; i++)
    {
        if (static_cast<uchar>(m_postGMValues->at(i)) < static_cast<uchar>(m_passthroughValues->at(i))) // HTP merge
        {
            (*m_postGMValues)[i] = (*m_passthroughValues)[i];
        }
    }
}

void Universe::zeroIntensityChannels()
{
    updateIntensityChannelsRanges();
    int const* channels = m_intensityChannelsRanges.constData();
    for (int i = 0; i < m_intensityChannelsRanges.size(); ++i)
    {
        short channel = channels[i] >> 16;
        short size = channels[i] & 0xffff;

        reset(channel, size);
    }
}

QHash<int, uchar> Universe::intensityChannels()
{
    QHash <int, uchar> intensityList;
    for (int i = 0; i < m_intensityChannels.size(); ++i)
    {
        int channel = m_intensityChannels.at(i);
        intensityList[channel] = m_preGMValues->at(channel);
    }
    return intensityList;
}

uchar Universe::postGMValue(int address) const
{
    if (address >= m_postGMValues->size())
        return 0;

    return uchar(m_postGMValues->at(address));
}

const QByteArray* Universe::postGMValues() const
{
    return m_postGMValues.data();
}

Universe::BlendMode Universe::stringToBlendMode(QString mode)
{
    if (mode == KXMLUniverseNormalBlend)
        return NormalBlend;
    else if (mode == KXMLUniverseMaskBlend)
        return MaskBlend;
    else if (mode == KXMLUniverseAdditiveBlend)
        return AdditiveBlend;
    else if (mode == KXMLUniverseSubtractiveBlend)
        return SubtractiveBlend;

    return NormalBlend;
}

QString Universe::blendModeToString(Universe::BlendMode mode)
{
    switch(mode)
    {
        default:
        case NormalBlend:
            return QString(KXMLUniverseNormalBlend);
        break;
        case MaskBlend:
            return QString(KXMLUniverseMaskBlend);
        break;
        case AdditiveBlend:
            return QString(KXMLUniverseAdditiveBlend);
        break;
        case SubtractiveBlend:
            return QString(KXMLUniverseSubtractiveBlend);
        break;
    }
}

const QByteArray Universe::preGMValues() const
{
    return *m_preGMValues;
}

uchar Universe::preGMValue(int address) const
{
    if (address >= m_preGMValues->size())
        return 0U;

    return static_cast<uchar>(m_preGMValues->at(address));
}

uchar Universe::applyGM(int channel, uchar value)
{
    if ((m_grandMaster->channelMode() == GrandMaster::Intensity && m_channelsMask->at(channel) & Intensity) ||
        (m_grandMaster->channelMode() == GrandMaster::AllChannels))
    {
        if (m_grandMaster->valueMode() == GrandMaster::Limit)
            value = MIN(value, m_grandMaster->value());
        else
            value = char(floor((double(value) * m_grandMaster->fraction()) + 0.5));
    }

    return value;
}

uchar Universe::applyModifiers(int channel, uchar value)
{
    if (m_modifiers.at(channel) != NULL)
        return m_modifiers.at(channel)->getValue(value);

    return value;
}

uchar Universe::applyPassthrough(int channel, uchar value)
{
    if (m_passthrough)
    {
        const uchar passthroughValue = static_cast<uchar>(m_passthroughValues->at(channel));
        if (value < passthroughValue) // HTP merge
        {
            return passthroughValue;
        }
    }

    return value;
}

void Universe::updatePostGMValue(int channel)
{
    uchar value = preGMValue(channel);

    if (value != 0)
        value = applyGM(channel, value);

    value = applyModifiers(channel, value);
    value = applyPassthrough(channel, value);

    (*m_postGMValues)[channel] = static_cast<char>(value);
}

/************************************************************************
 * Patches
 ************************************************************************/

bool Universe::isPatched()
{
    if (m_inputPatch != NULL || m_outputPatchList.count() || m_fbPatch != NULL)
        return true;

    return false;
}

bool Universe::setInputPatch(QLCIOPlugin *plugin,
                             quint32 input, QLCInputProfile *profile)
{
    qDebug() << "[Universe] setInputPatch - ID:" << m_id << ", plugin:" << ((plugin == NULL)?"None":plugin->name())
             << ", input:" << input << ", profile:" << ((profile == NULL)?"None":profile->name());
    if (m_inputPatch == NULL)
    {
        if (plugin == NULL || input == QLCIOPlugin::invalidLine())
            return true;

        m_inputPatch = new InputPatch(m_id, this);
        connectInputPatch();
    }
    else
    {
        if (input == QLCIOPlugin::invalidLine())
        {
            disconnectInputPatch();
            delete m_inputPatch;
            m_inputPatch = NULL;
            emit inputPatchChanged();
            return true;
        }
    }

    if (m_inputPatch != NULL)
    {
        bool result = m_inputPatch->set(plugin, input, profile);
        emit inputPatchChanged();
        return result;
    }

    return true;
}

bool Universe::setOutputPatch(QLCIOPlugin *plugin, quint32 output, int index)
{
    if (index < 0)
        return false;

    qDebug() << "[Universe] setOutputPatch - ID:" << m_id
             << ", plugin:" << ((plugin == NULL) ? "None" : plugin->name()) << ", output:" << output;

    // replace or delete an existing patch
    if (index < m_outputPatchList.count())
    {
        if (plugin == NULL || output == QLCIOPlugin::invalidLine())
        {
            // need to delete an existing patch
            OutputPatch *patch = m_outputPatchList.takeAt(index);
            delete patch;
            emit outputPatchesCountChanged();
            return true;
        }

        OutputPatch *patch = m_outputPatchList.at(index);
        bool result = patch->set(plugin, output);
        emit outputPatchChanged();
        return result;
    }
    else
    {
        if (plugin == NULL || output == QLCIOPlugin::invalidLine())
            return false;

        // add a new patch
        OutputPatch *patch = new OutputPatch(m_id, this);
        bool result = patch->set(plugin, output);
        m_outputPatchList.append(patch);
        emit outputPatchesCountChanged();
        return result;
    }

    return false;
}

bool Universe::setFeedbackPatch(QLCIOPlugin *plugin, quint32 output)
{
    qDebug() << Q_FUNC_INFO << "plugin:" << plugin << "output:" << output;
    if (m_fbPatch == NULL)
    {
        if (plugin == NULL || output == QLCIOPlugin::invalidLine())
            return false;

        m_fbPatch = new OutputPatch(m_id, this);
    }
    else
    {
        if (plugin == NULL || output == QLCIOPlugin::invalidLine())
        {
            delete m_fbPatch;
            m_fbPatch = NULL;
            emit hasFeedbackChanged();
            return true;
        }
    }
    if (m_fbPatch != NULL)
    {
        bool result = m_fbPatch->set(plugin, output);
        emit hasFeedbackChanged();
        return result;
    }

    return false;
}

bool Universe::hasFeedback() const
{
    return m_fbPatch != NULL ? true : false;
}

InputPatch *Universe::inputPatch() const
{
    return m_inputPatch;
}

OutputPatch *Universe::outputPatch(int index) const
{
    if (index < 0 || index >= m_outputPatchList.count())
        return NULL;

    return m_outputPatchList.at(index);
}

int Universe::outputPatchesCount() const
{
    return m_outputPatchList.count();
}

OutputPatch *Universe::feedbackPatch() const
{
    return m_fbPatch;
}

void Universe::dumpOutput(const QByteArray &data, bool dataChanged)
{
    if (m_outputPatchList.count() == 0)
        return;

    foreach (OutputPatch *op, m_outputPatchList)
    {
        if (m_totalChannelsChanged == true)
            op->setPluginParameter(PLUGIN_UNIVERSECHANNELS, m_totalChannels);

        if (op->blackout())
            op->dump(m_id, *m_blackoutValues, dataChanged);
        else
            op->dump(m_id, data, dataChanged);
    }
    m_totalChannelsChanged = false;
}

void Universe::flushInput()
{
    if (m_inputPatch == NULL)
        return;

    m_inputPatch->flush(m_id);
}

void Universe::slotInputValueChanged(quint32 universe, quint32 channel, uchar value, const QString &key)
{
    if (m_passthrough)
    {
        if (universe == m_id)
        {
            qDebug() << "write" << channel << value;

            if (channel >= UNIVERSE_SIZE)
                return;

            if (channel >= m_usedChannels)
                m_usedChannels = channel + 1;

            (*m_passthroughValues)[channel] = value;

            updatePostGMValue(channel);
        }
    }
    else
        emit inputValueChanged(universe, channel, value, key);
}

void Universe::connectInputPatch()
{
    if (m_inputPatch == NULL)
        return;

    if (!m_passthrough)
        connect(m_inputPatch, SIGNAL(inputValueChanged(quint32,quint32,uchar,const QString&)),
                this, SIGNAL(inputValueChanged(quint32,quint32,uchar,QString)));
    else
        connect(m_inputPatch, SIGNAL(inputValueChanged(quint32,quint32,uchar,const QString&)),
                this, SLOT(slotInputValueChanged(quint32,quint32,uchar,const QString&)));
}

void Universe::disconnectInputPatch()
{
    if (m_inputPatch == NULL)
        return;

    if (!m_passthrough)
        disconnect(m_inputPatch, SIGNAL(inputValueChanged(quint32,quint32,uchar,const QString&)),
                this, SIGNAL(inputValueChanged(quint32,quint32,uchar,QString)));
    else
        disconnect(m_inputPatch, SIGNAL(inputValueChanged(quint32,quint32,uchar,const QString&)),
                this, SLOT(slotInputValueChanged(quint32,quint32,uchar,const QString&)));
}

/************************************************************************
 * Channels capabilities
 ************************************************************************/

void Universe::setChannelCapability(ushort channel, QLCChannel::Group group, ChannelType forcedType)
{
    if (channel >= (ushort)m_channelsMask->length())
        return;

    if (Utils::vectorRemove(m_intensityChannels, channel))
        m_intensityChannelsChanged = true;
    Utils::vectorRemove(m_nonIntensityChannels, channel);

    if (forcedType != Undefined)
    {
        (*m_channelsMask)[channel] = char(forcedType);
        if ((forcedType & HTP) == HTP)
        {
            //qDebug() << "--- Channel" << channel << "forced type HTP";
            Utils::vectorSortedAddUnique(m_intensityChannels, channel);
            m_intensityChannelsChanged = true;
            if (group == QLCChannel::Intensity)
            {
                //qDebug() << "--- Channel" << channel << "Intensity + HTP";
                (*m_channelsMask)[channel] = char(HTP | Intensity);
            }
        }
        else if ((forcedType & LTP) == LTP)
        {
            //qDebug() << "--- Channel" << channel << "forced type LTP";
            Utils::vectorSortedAddUnique(m_nonIntensityChannels, channel);
        }
    }
    else
    {
        if (group == QLCChannel::Intensity)
        {
            //qDebug() << "--- Channel" << channel << "Intensity + HTP";
            (*m_channelsMask)[channel] = char(HTP | Intensity);
            Utils::vectorSortedAddUnique(m_intensityChannels, channel);
            m_intensityChannelsChanged = true;
        }
        else
        {
            //qDebug() << "--- Channel" << channel << "LTP";
            (*m_channelsMask)[channel] = char(LTP);
            Utils::vectorSortedAddUnique(m_nonIntensityChannels, channel);
        }
    }

    // qDebug() << Q_FUNC_INFO << "Channel:" << channel << "mask:" << QString::number(m_channelsMask->at(channel), 16);
    if (channel >= m_totalChannels)
    {
        m_totalChannels = channel + 1;
        m_totalChannelsChanged = true;
    }
}

uchar Universe::channelCapabilities(ushort channel)
{
    if (channel >= (ushort)m_channelsMask->length())
        return Undefined;

    return m_channelsMask->at(channel);
}

void Universe::setChannelDefaultValue(ushort channel, uchar value)
{
    if (channel >= m_totalChannels)
    {
        m_totalChannels = channel + 1;
        m_totalChannelsChanged = true;
    }

    if (channel >= m_usedChannels)
        m_usedChannels = channel + 1;

    (*m_preGMValues)[channel] = value;
    updatePostGMValue(channel);
}

void Universe::setChannelModifier(ushort channel, ChannelModifier *modifier)
{
    if (channel >= (ushort)m_modifiers.count())
        return;

    m_modifiers[channel] = modifier;

    if (modifier != NULL)
    {
        (*m_modifiedZeroValues)[channel] = modifier->getValue(0);

        if (channel >= m_totalChannels)
        {
            m_totalChannels = channel + 1;
            m_totalChannelsChanged = true;
        }

        if (channel >= m_usedChannels)
            m_usedChannels = channel + 1;
    }

    updatePostGMValue(channel);
}

ChannelModifier *Universe::channelModifier(ushort channel)
{
    if (channel >= (ushort)m_modifiers.count())
        return NULL;

    return m_modifiers.at(channel);
}

void Universe::updateIntensityChannelsRanges()
{
    if (!m_intensityChannelsChanged)
        return;

    m_intensityChannelsChanged = false;

    m_intensityChannelsRanges.clear();
    short currentPos = -1;
    short currentSize = 0;

    for (int i = 0; i < m_intensityChannels.size(); ++i)
    {
        int channel = m_intensityChannels.at(i);
        if (currentPos + currentSize == channel)
            ++currentSize;
        else
        {
            if (currentPos != -1)
                m_intensityChannelsRanges.append((currentPos << 16) | currentSize);
            currentPos = channel;
            currentSize = 1;
        }
    }
    if (currentPos != -1)
        m_intensityChannelsRanges.append((currentPos << 16) | currentSize);

    qDebug() << Q_FUNC_INFO << ":" << m_intensityChannelsRanges.size() << "ranges";
}

/****************************************************************************
 * Writing
 ****************************************************************************/

bool Universe::write(int address, uchar value, bool forceLTP)
{
    Q_ASSERT(address < UNIVERSE_SIZE);

    //qDebug() << "[Universe]" << id() << ": write channel" << address << ", value:" << value;

    if (address >= m_usedChannels)
        m_usedChannels = address + 1;

    if (m_channelsMask->at(address) & HTP)
    {
        if (forceLTP == false && value < (uchar)m_preGMValues->at(address))
        {
            qDebug() << "[Universe] HTP check not passed" << address << value;
            return false;
        }
    }
    else
    {
        // preserve non HTP channels for blackout
        (*m_blackoutValues)[address] = char(value);
    }

    (*m_preGMValues)[address] = char(value);

    updatePostGMValue(address);

    return true;
}

bool Universe::writeMultiple(int address, quint32 value, int channelCount)
{
    for (int i = 0; i < channelCount; i++)
    {
        //qDebug() << "[Universe]" << id() << ": write channel" << (address + i) << ", value:" << QString::number(((uchar *)&value)[channelCount - 1 - i]);

        // preserve non HTP channels for blackout
        if ((m_channelsMask->at(address + i) & HTP) == 0)
            (*m_blackoutValues)[address + i] = ((uchar *)&value)[channelCount - 1 - i];

        (*m_preGMValues)[address + i] = ((uchar *)&value)[channelCount - 1 - i];

        updatePostGMValue(address + i);
    }

    return true;
}

bool Universe::writeRelative(int address, quint32 value, int channelCount)
{
    Q_ASSERT(address < UNIVERSE_SIZE);

    //qDebug() << "Write relative channel" << address << "value" << value;

    if (address + channelCount >= m_usedChannels)
        m_usedChannels = address + channelCount;

    if (channelCount == 1)
    {
        short newVal = uchar((*m_preGMValues)[address]);
        newVal += short(value) - RELATIVE_ZERO_8BIT;
        (*m_preGMValues)[address] = char(CLAMP(newVal, 0, UCHAR_MAX));
        (*m_blackoutValues)[address] = char(CLAMP(newVal, 0, UCHAR_MAX));
        updatePostGMValue(address);
    }
    else
    {
        quint32 currentValue = 0;
        for (int i = 0; i < channelCount; i++)
            currentValue = (currentValue << 8) + uchar(m_preGMValues->at(address + i));

        currentValue = qint32(CLAMP((qint32)currentValue + (qint32)value - RELATIVE_ZERO_16BIT, 0, 0xFFFF));

        for (int i = 0; i < channelCount; i++)
        {
            (*m_preGMValues)[address + i] = ((uchar *)&currentValue)[channelCount - 1 - i];
            (*m_blackoutValues)[address + i] = ((uchar *)&currentValue)[channelCount - 1 - i];
            updatePostGMValue(address + i);
        }
    }

    return true;
}

bool Universe::writeBlended(int address, quint32 value, int channelCount, Universe::BlendMode blend)
{
    if (address + channelCount >= m_usedChannels)
        m_usedChannels = address + channelCount;

    quint32 currentValue = 0;
    for (int i = 0; i < channelCount; i++)
        currentValue = (currentValue << 8) + uchar(m_preGMValues->at(address + i));

    switch (blend)
    {
        case NormalBlend:
        {
            if ((m_channelsMask->at(address) & HTP) && value < currentValue)
            {
                qDebug() << "[Universe] HTP check not passed" << address << value;
                return false;
            }
        }
        break;
        case MaskBlend:
        {
            if (value)
            {
                qDebug() << "Current value" << currentValue << "value" << value;
                if (currentValue)
                    value = float(currentValue) * (float(value) / pow(255.0, channelCount));
                else
                    value = 0;
            }
        }
        break;
        case AdditiveBlend:
        {
            //qDebug() << "Universe write additive channel" << channel << ", value:" << currVal << "+" << value;
            value = fmin(float(currentValue + value), pow(255.0, channelCount));
        }
        break;
        case SubtractiveBlend:
        {
            if (value >= currentValue)
                value = 0;
            else
                value = currentValue - value;
        }
        break;
        default:
            qDebug() << "[Universe] Blend mode not handled. Implement me!" << blend;
            return false;
        break;
    }

    writeMultiple(address, value, channelCount);

    return true;
}

/*********************************************************************
 * Load & Save
 *********************************************************************/

bool Universe::loadXML(QXmlStreamReader &root, int index, InputOutputMap *ioMap)
{
    if (root.name() != KXMLQLCUniverse)
    {
        qWarning() << Q_FUNC_INFO << "Universe node not found";
        return false;
    }

    int outputIndex = 0;

    QXmlStreamAttributes attrs = root.attributes();

    if (attrs.hasAttribute(KXMLQLCUniverseName))
        setName(attrs.value(KXMLQLCUniverseName).toString());

    if (attrs.hasAttribute(KXMLQLCUniversePassthrough))
    {
        if (attrs.value(KXMLQLCUniversePassthrough).toString() == KXMLQLCTrue ||
            attrs.value(KXMLQLCUniversePassthrough).toString() == "1")
            setPassthrough(true);
        else
            setPassthrough(false);
    }
    else
    {
        setPassthrough(false);
    }

    while (root.readNextStartElement())
    {
        QXmlStreamAttributes pAttrs = root.attributes();

        if (root.name() == KXMLQLCUniverseInputPatch)
        {
            QString plugin = KInputNone;
            quint32 inputLine = QLCIOPlugin::invalidLine();
            QString inputUID;
            QString profile = KInputNone;

            if (pAttrs.hasAttribute(KXMLQLCUniversePlugin))
                plugin = pAttrs.value(KXMLQLCUniversePlugin).toString();
            if (pAttrs.hasAttribute(KXMLQLCUniverseLineUID))
                inputUID = pAttrs.value(KXMLQLCUniverseLineUID).toString();
            if (pAttrs.hasAttribute(KXMLQLCUniverseLine))
                inputLine = pAttrs.value(KXMLQLCUniverseLine).toString().toUInt();
            if (pAttrs.hasAttribute(KXMLQLCUniverseProfileName))
                profile = pAttrs.value(KXMLQLCUniverseProfileName).toString();

            // apply the parameters just loaded
            ioMap->setInputPatch(index, plugin, inputUID, inputLine, profile);

            QXmlStreamReader::TokenType tType = root.readNext();
            if (tType == QXmlStreamReader::Characters)
                tType = root.readNext();

            // check if there is a PluginParameters tag defined
            if (tType == QXmlStreamReader::StartElement)
            {
                if (root.name() == KXMLQLCUniversePluginParameters)
                    loadXMLPluginParameters(root, InputPatchTag, 0);
                root.skipCurrentElement();
            }
        }
        else if (root.name() == KXMLQLCUniverseOutputPatch)
        {
            QString plugin = KOutputNone;
            QString outputUID;
            quint32 outputLine = QLCIOPlugin::invalidLine();

            if (pAttrs.hasAttribute(KXMLQLCUniversePlugin))
                plugin = pAttrs.value(KXMLQLCUniversePlugin).toString();
            if (pAttrs.hasAttribute(KXMLQLCUniverseLineUID))
                outputUID = pAttrs.value(KXMLQLCUniverseLineUID).toString();
            if (pAttrs.hasAttribute(KXMLQLCUniverseLine))
                outputLine = pAttrs.value(KXMLQLCUniverseLine).toString().toUInt();

            // apply the parameters just loaded
            ioMap->setOutputPatch(index, plugin, outputUID, outputLine, false, outputIndex);

            QXmlStreamReader::TokenType tType = root.readNext();
            if (tType == QXmlStreamReader::Characters)
                tType = root.readNext();

            // check if there is a PluginParameters tag defined
            if (tType == QXmlStreamReader::StartElement)
            {
                if (root.name() == KXMLQLCUniversePluginParameters)
                    loadXMLPluginParameters(root, OutputPatchTag, outputIndex);
                root.skipCurrentElement();
            }

            outputIndex++;
        }
        else if (root.name() == KXMLQLCUniverseFeedbackPatch)
        {
            QString plugin = KOutputNone;
            QString outputUID;
            quint32 output = QLCIOPlugin::invalidLine();

            if (pAttrs.hasAttribute(KXMLQLCUniversePlugin))
                plugin = pAttrs.value(KXMLQLCUniversePlugin).toString();
            if (pAttrs.hasAttribute(KXMLQLCUniverseLineUID))
                outputUID = pAttrs.value(KXMLQLCUniverseLineUID).toString();
            if (pAttrs.hasAttribute(KXMLQLCUniverseLine))
                output = pAttrs.value(KXMLQLCUniverseLine).toString().toUInt();

            // apply the parameters just loaded
            ioMap->setOutputPatch(index, plugin, outputUID, output, true);

            QXmlStreamReader::TokenType tType = root.readNext();
            if (tType == QXmlStreamReader::Characters)
                tType = root.readNext();

            // check if there is a PluginParameters tag defined
            if (tType == QXmlStreamReader::StartElement)
            {
                if (root.name() == KXMLQLCUniversePluginParameters)
                    loadXMLPluginParameters(root, FeedbackPatchTag, 0);
                root.skipCurrentElement();
            }
        }
        else
        {
            qWarning() << Q_FUNC_INFO << "Unknown Universe tag:" << root.name();
            root.skipCurrentElement();
        }
    }

    return true;
}

bool Universe::loadXMLPluginParameters(QXmlStreamReader &root, PatchTagType currentTag, int patchIndex)
{
    if (root.name() != KXMLQLCUniversePluginParameters)
    {
        qWarning() << Q_FUNC_INFO << "PluginParameters node not found";
        return false;
    }

    QXmlStreamAttributes pluginAttrs = root.attributes();
    for (int i = 0; i < pluginAttrs.count(); i++)
    {
        QXmlStreamAttribute attr = pluginAttrs.at(i);
        if (currentTag == InputPatchTag)
        {
            InputPatch *ip = inputPatch();
            if (ip != NULL)
                ip->setPluginParameter(attr.name().toString(), attr.value().toString());
        }
        else if (currentTag == OutputPatchTag)
        {
            OutputPatch *op = outputPatch(patchIndex);
            if (op != NULL)
                op->setPluginParameter(attr.name().toString(), attr.value().toString());
        }
        else if (currentTag == FeedbackPatchTag)
        {
            OutputPatch *fbp = feedbackPatch();
            if (fbp != NULL)
                fbp->setPluginParameter(attr.name().toString(), attr.value().toString());
        }
    }
    root.skipCurrentElement();

    return true;
}

bool Universe::saveXML(QXmlStreamWriter *doc) const
{
    Q_ASSERT(doc != NULL);

    doc->writeStartElement(KXMLQLCUniverse);
    doc->writeAttribute(KXMLQLCUniverseName, name());
    doc->writeAttribute(KXMLQLCUniverseID, QString::number(id()));

    if (passthrough() == true)
        doc->writeAttribute(KXMLQLCUniversePassthrough, KXMLQLCTrue);

    if (inputPatch() != NULL)
    {
        savePatchXML(doc, KXMLQLCUniverseInputPatch, inputPatch()->pluginName(), inputPatch()->inputName(),
            inputPatch()->input(), inputPatch()->profileName(), inputPatch()->getPluginParameters());
    }
    foreach (OutputPatch *op, m_outputPatchList)
    {
        savePatchXML(doc, KXMLQLCUniverseOutputPatch, op->pluginName(), op->outputName(),
            op->output(), "", op->getPluginParameters());
    }
    if (feedbackPatch() != NULL)
    {
        savePatchXML(doc, KXMLQLCUniverseFeedbackPatch, feedbackPatch()->pluginName(), feedbackPatch()->outputName(),
            feedbackPatch()->output(), "", feedbackPatch()->getPluginParameters());
    }

    /* End the <Universe> tag */
    doc->writeEndElement();

    return true;
}

void Universe::savePatchXML(
    QXmlStreamWriter *doc,
    const QString &tag,
    const QString &pluginName,
    const QString &lineName,
    quint32 line,
    QString profileName,
    QMap<QString, QVariant> parameters) const
{
    // sanity check: don't save invalid data
    if (pluginName.isEmpty() || pluginName == KInputNone || line == QLCIOPlugin::invalidLine())
        return;

    doc->writeStartElement(tag);
    doc->writeAttribute(KXMLQLCUniversePlugin, pluginName);
    doc->writeAttribute(KXMLQLCUniverseLineUID, lineName);
    doc->writeAttribute(KXMLQLCUniverseLine, QString::number(line));
    if (!profileName.isEmpty() && profileName != KInputNone)
        doc->writeAttribute(KXMLQLCUniverseProfileName, profileName);

    savePluginParametersXML(doc, parameters);
    doc->writeEndElement();
}

bool Universe::savePluginParametersXML(QXmlStreamWriter *doc,
                                       QMap<QString, QVariant> parameters) const
{
    Q_ASSERT(doc != NULL);

    if (parameters.isEmpty())
        return false;

    doc->writeStartElement(KXMLQLCUniversePluginParameters);
    QMapIterator<QString, QVariant> it(parameters);
    while (it.hasNext())
    {
        it.next();
        QString pName = it.key();
        QVariant pValue = it.value();
        doc->writeAttribute(pName, pValue.toString());
    }
    doc->writeEndElement();

    return true;
}


mcallegari / qlcplus / 13633248611

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