view transform/Transform.cpp @ 537:3cc4b7cd2aa5

* Merge from one-fftdataserver-per-fftmodel branch.  This bit of
reworking (which is not described very accurately by the title of
the branch) turns the MatrixFile object into something that either
reads or writes, but not both, and separates the FFT file cache
reader and writer implementations separately.  This allows the
FFT data server to have a single thread owning writers and one reader
per "customer" thread, and for all locking to be vastly simplified
and concentrated in the data server alone (because none of the
classes it makes use of is used in more than one thread at a time).
The result is faster and more trustworthy code.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006-2007 Chris Cannam and QMUL.
   
    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.  See the file
    COPYING included with this distribution for more information.
*/

#include "Transform.h"

#include "plugin/PluginIdentifier.h"

#include "plugin/FeatureExtractionPluginFactory.h"

#include <QXmlAttributes>

#include <QDomDocument>
#include <QDomElement>
#include <QDomNamedNodeMap>
#include <QDomAttr>

#include <QTextStream>

#include <iostream>

Transform::Transform() :
    m_summaryType(NoSummary),
    m_stepSize(0),
    m_blockSize(0),
    m_windowType(HanningWindow),
    m_sampleRate(0)
{
}

Transform::Transform(QString xml) :
    m_summaryType(NoSummary),
    m_stepSize(0),
    m_blockSize(0),
    m_windowType(HanningWindow),
    m_sampleRate(0)
{
    QDomDocument doc;
    
    QString error;
    int errorLine;
    int errorColumn;

    if (!doc.setContent(xml, false, &error, &errorLine, &errorColumn)) {
        std::cerr << "Transform::Transform: Error in parsing XML: "
                  << error.toStdString() << " at line " << errorLine
                  << ", column " << errorColumn << std::endl;
        std::cerr << "Input follows:" << std::endl;
        std::cerr << xml.toStdString() << std::endl;
        std::cerr << "Input ends." << std::endl;
        return;
    }
    
    QDomElement transformElt = doc.firstChildElement("transform");
    QDomNamedNodeMap attrNodes = transformElt.attributes();
    QXmlAttributes attrs;

    for (unsigned int i = 0; i < attrNodes.length(); ++i) {
        QDomAttr attr = attrNodes.item(i).toAttr();
        if (!attr.isNull()) attrs.append(attr.name(), "", "", attr.value());
    }

    setFromXmlAttributes(attrs);

    for (QDomElement paramElt = transformElt.firstChildElement("parameter");
         !paramElt.isNull();
         paramElt = paramElt.nextSiblingElement("parameter")) {

        QDomNamedNodeMap paramAttrs = paramElt.attributes();

        QDomAttr nameAttr = paramAttrs.namedItem("name").toAttr();
        if (nameAttr.isNull() || nameAttr.value() == "") continue;
        
        QDomAttr valueAttr = paramAttrs.namedItem("value").toAttr();
        if (valueAttr.isNull() || valueAttr.value() == "") continue;

        setParameter(nameAttr.value(), valueAttr.value().toFloat());
    }

    for (QDomElement configElt = transformElt.firstChildElement("configuration");
         !configElt.isNull();
         configElt = configElt.nextSiblingElement("configuration")) {

        QDomNamedNodeMap configAttrs = configElt.attributes();

        QDomAttr nameAttr = configAttrs.namedItem("name").toAttr();
        if (nameAttr.isNull() || nameAttr.value() == "") continue;
        
        QDomAttr valueAttr = configAttrs.namedItem("value").toAttr();
        if (valueAttr.isNull() || valueAttr.value() == "") continue;

        setConfigurationValue(nameAttr.value(), valueAttr.value());
    }
}

Transform::~Transform()
{
}

bool
Transform::operator==(const Transform &t) const
{
    return 
        m_id == t.m_id &&
        m_parameters == t.m_parameters &&
        m_configuration == t.m_configuration &&
        m_program == t.m_program &&
        m_summaryType == t.m_summaryType &&
        m_stepSize == t.m_stepSize &&
        m_blockSize == t.m_blockSize &&
        m_windowType == t.m_windowType &&
        m_startTime == t.m_startTime &&
        m_duration == t.m_duration &&
        m_sampleRate == t.m_sampleRate;
}

bool
Transform::operator<(const Transform &t) const
{
    if (m_id != t.m_id) {
        return m_id < t.m_id;
    }
    if (m_parameters != t.m_parameters) {
        return mapLessThan<QString, float>(m_parameters, t.m_parameters);
    }
    if (m_configuration != t.m_configuration) {
        return mapLessThan<QString, QString>(m_configuration, t.m_configuration);
    }
    if (m_program != t.m_program) {
        return m_program < t.m_program;
    }
    if (m_summaryType != t.m_summaryType) {
        return int(m_summaryType) < int(t.m_summaryType);
    }
    if (m_stepSize != t.m_stepSize) {
        return m_stepSize < t.m_stepSize;
    }
    if (m_blockSize != t.m_blockSize) {
        return m_blockSize < t.m_blockSize;
    }
    if (m_windowType != t.m_windowType) {
        return m_windowType < t.m_windowType;
    }
    if (m_startTime != t.m_startTime) {
        return m_startTime < t.m_startTime;
    }
    if (m_duration != t.m_duration) {
        return m_duration < t.m_duration;
    }
    if (m_sampleRate != t.m_sampleRate) {
        return m_sampleRate < t.m_sampleRate;
    }
    return false;
}

void
Transform::setIdentifier(TransformId id)
{
    m_id = id;
}

TransformId
Transform::getIdentifier() const
{
    return m_id;
}

QString
Transform::createIdentifier(QString type, QString soName, QString label,
                            QString output)
{
    QString pluginId = PluginIdentifier::createIdentifier(type, soName, label);
    return pluginId + ":" + output;
}

void
Transform::parseIdentifier(QString identifier,
                           QString &type, QString &soName,
                           QString &label, QString &output)
{
    output = identifier.section(':', 3);
    PluginIdentifier::parseIdentifier(identifier.section(':', 0, 2),
                                      type, soName, label);
}

Transform::Type
Transform::getType() const
{
    if (FeatureExtractionPluginFactory::instanceFor(getPluginIdentifier())) {
        return FeatureExtraction;
    } else {
        // We don't have an unknown/invalid return value, so always
        // return this
        return RealTimeEffect;
    }
}

QString
Transform::getPluginIdentifier() const
{
    return m_id.section(':', 0, 2);
}

QString
Transform::getOutput() const
{
    return m_id.section(':', 3);
}

void
Transform::setPluginIdentifier(QString pluginIdentifier)
{
    m_id = pluginIdentifier + ':' + getOutput();
}

void
Transform::setOutput(QString output)
{
    m_id = getPluginIdentifier() + ':' + output;
}

TransformId
Transform::getIdentifierForPluginOutput(QString pluginIdentifier,
                                        QString output)
{
    return pluginIdentifier + ':' + output;
}

const Transform::ParameterMap &
Transform::getParameters() const
{
    return m_parameters;
}

void
Transform::setParameters(const ParameterMap &pm)
{
    m_parameters = pm;
}

void
Transform::setParameter(QString name, float value)
{
//    std::cerr << "Transform::setParameter(" << name.toStdString()
//              << ") -> " << value << std::endl;
    m_parameters[name] = value;
}

const Transform::ConfigurationMap &
Transform::getConfiguration() const
{
    return m_configuration;
}

void
Transform::setConfiguration(const ConfigurationMap &cm)
{
    m_configuration = cm;
}

void
Transform::setConfigurationValue(QString name, QString value)
{
    std::cerr << "Transform::setConfigurationValue(" << name.toStdString()
              << ") -> " << value.toStdString() << std::endl;
    m_configuration[name] = value;
}

QString
Transform::getPluginVersion() const
{
    return m_pluginVersion;
}

void
Transform::setPluginVersion(QString version)
{
    m_pluginVersion = version;
}

QString
Transform::getProgram() const
{
    return m_program;
}

void
Transform::setProgram(QString program)
{
    m_program = program;
}

Transform::SummaryType
Transform::getSummaryType() const
{
    return m_summaryType;
}

void
Transform::setSummaryType(SummaryType type)
{
    m_summaryType = type;
}
    
size_t
Transform::getStepSize() const
{
    return m_stepSize;
}

void
Transform::setStepSize(size_t s)
{
    m_stepSize = s;
}
    
size_t
Transform::getBlockSize() const
{
    return m_blockSize;
}

void
Transform::setBlockSize(size_t s)
{
    m_blockSize = s;
}

WindowType
Transform::getWindowType() const
{
    return m_windowType;
}

void
Transform::setWindowType(WindowType type)
{
    m_windowType = type;
}

RealTime
Transform::getStartTime() const
{
    return m_startTime;
}

void
Transform::setStartTime(RealTime t)
{
    m_startTime = t;
}

RealTime
Transform::getDuration() const
{
    return m_duration;
}

void
Transform::setDuration(RealTime d)
{
    m_duration = d;
}
    
float
Transform::getSampleRate() const
{
    return m_sampleRate;
}

void
Transform::setSampleRate(float rate)
{
    m_sampleRate = rate;
}

void
Transform::toXml(QTextStream &out, QString indent, QString extraAttributes) const
{
    out << indent;

    bool haveContent = true;
    if (m_parameters.empty() && m_configuration.empty()) haveContent = false;

    out << QString("<transform\n    id=\"%1\"\n    pluginVersion=\"%2\"\n    program=\"%3\"\n    stepSize=\"%4\"\n    blockSize=\"%5\"\n    windowType=\"%6\"\n    startTime=\"%7\"\n    duration=\"%8\"\n    sampleRate=\"%9\"")
        .arg(encodeEntities(m_id))
        .arg(encodeEntities(m_pluginVersion))
        .arg(encodeEntities(m_program))
        .arg(m_stepSize)
        .arg(m_blockSize)
        .arg(encodeEntities(Window<float>::getNameForType(m_windowType).c_str()))
        .arg(encodeEntities(m_startTime.toString().c_str()))
        .arg(encodeEntities(m_duration.toString().c_str()))
        .arg(m_sampleRate);

    if (m_summaryType != NoSummary) {
        out << QString("\n    summaryType=\"%1\"").arg(summaryTypeToString(m_summaryType));
    }

    if (extraAttributes != "") {
        out << " " << extraAttributes;
    }

    if (haveContent) {

        out << ">\n";

        for (ParameterMap::const_iterator i = m_parameters.begin();
             i != m_parameters.end(); ++i) {
            out << indent << "  "
                << QString("<parameter name=\"%1\" value=\"%2\"/>\n")
                .arg(encodeEntities(i->first))
                .arg(i->second);
        }
        
        for (ConfigurationMap::const_iterator i = m_configuration.begin();
             i != m_configuration.end(); ++i) {
            out << indent << "  "
                << QString("<configuration name=\"%1\" value=\"%2\"/>\n")
                .arg(encodeEntities(i->first))
                .arg(encodeEntities(i->second));
        }

        out << indent << "</transform>\n";

    } else {

        out << "/>\n";
    }
}

Transform::SummaryType
Transform::stringToSummaryType(QString str)
{
    str = str.toLower();
    if (str == "minimum" || str == "min") return Minimum;
    if (str == "maximum" || str == "max") return Maximum;
    if (str == "mean") return Mean;
    if (str == "median") return Median;
    if (str == "mode") return Mode;
    if (str == "sum") return Sum;
    if (str == "variance") return Variance;
    if (str == "standard-deviation" || str == "standardDeviation" ||
        str == "standard deviation" || str == "sd") return StandardDeviation;
    if (str == "count") return Count;
    if (str == "") return NoSummary;
    std::cerr << "Transform::stringToSummaryType: unknown summary type \""
              << str.toStdString() << "\"" << std::endl;
    return NoSummary;
}

QString
Transform::summaryTypeToString(SummaryType type)
{
    switch (type) {
    case Minimum: return "min";
    case Maximum: return "max";
    case Mean: return "mean";
    case Median: return "median";
    case Mode: return "mode";
    case Sum: return "sum";
    case Variance: return "variance";
    case StandardDeviation: return "sd";
    case Count: return "count";
    case NoSummary: return "";
    default:
        std::cerr << "Transform::summaryTypeToString: unexpected summary type "
                  << int(type) << std::endl;
        return "";
    }
}

void
Transform::setFromXmlAttributes(const QXmlAttributes &attrs)
{
    if (attrs.value("id") != "") {
        setIdentifier(attrs.value("id"));
    }

    if (attrs.value("pluginVersion") != "") {
        setPluginVersion(attrs.value("pluginVersion"));
    }

    if (attrs.value("program") != "") {
        setProgram(attrs.value("program"));
    }

    if (attrs.value("stepSize") != "") {
        setStepSize(attrs.value("stepSize").toInt());
    }

    if (attrs.value("blockSize") != "") {
        setBlockSize(attrs.value("blockSize").toInt());
    }

    if (attrs.value("windowType") != "") {
        setWindowType(Window<float>::getTypeForName
                      (attrs.value("windowType").toStdString()));
    }

    if (attrs.value("startTime") != "") {
        setStartTime(RealTime::fromString(attrs.value("startTime").toStdString()));
    }

    if (attrs.value("duration") != "") {
        setStartTime(RealTime::fromString(attrs.value("duration").toStdString()));
    }
    
    if (attrs.value("sampleRate") != "") {
        setSampleRate(attrs.value("sampleRate").toFloat());
    }

    if (attrs.value("summaryType") != "") {
        setSummaryType(stringToSummaryType(attrs.value("summaryType")));
    }
}