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C++ MidiTrack::setType方法代码示例

本文整理汇总了C++中MidiTrack::setType方法的典型用法代码示例。如果您正苦于以下问题:C++ MidiTrack::setType方法的具体用法?C++ MidiTrack::setType怎么用?C++ MidiTrack::setType使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在MidiTrack的用法示例。


在下文中一共展示了MidiTrack::setType方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: importMidi

bool LOS::importMidi(const QString name, bool merge)/*{{{*/
{
    bool popenFlag;
    FILE* fp = fileOpen(this, name, QString(".mid"), "r", popenFlag);
    if (fp == 0)
        return true;
    MidiFile mf(fp);
    bool rv = mf.read();
    popenFlag ? pclose(fp) : fclose(fp);
    if (rv)
    {
        QString s(tr("reading midifile\n  "));
        s += name;
        s += tr("\nfailed: ");
        s += mf.error();
        QMessageBox::critical(this, QString("LOS"), s);
        return rv;
    }
    //
    //  evaluate song Type (GM, XG, GS, unknown)
    //
    MType t = song->midiType();
    if (!merge)
    {
        t = mf.mtype();
        song->setMType(t);
    }
    MidiInstrument* instr = 0;
    for (iMidiInstrument i = midiInstruments.begin(); i != midiInstruments.end(); ++i)
    {
        MidiInstrument* mi = *i;
        if ((mi->iname() == "GM" && ((t == MT_UNKNOWN) || (t == MIDI_TYPE_GM)))
                || ((mi->iname() == "GS") && (t == MT_GS))
                || ((mi->iname() == "XG") && (t == MT_XG)))
        {
            instr = mi;
            break;
        }
    }
    if (instr == 0)
    {
        // the standard instrument files (GM, GS, XG) must be present
        printf("no instrument, type %d\n", t);
        return true;
        //abort();
    }

    MidiFileTrackList* etl = mf.trackList();
    int division = mf.division();

    //
    // create MidiTrack and copy events to ->events()
    //    - combine note on/off events
    //    - calculate tick value for internal resolution
    //
    for (iMidiFileTrack t = etl->begin(); t != etl->end(); ++t)
    {
        MPEventList* el = &((*t)->events);
        if (el->empty())
            continue;
        //
        // if we split the track, SYSEX and META events go into
        // the first target track

        bool first = true;
        // somewhat silly and slooow:
        for (int port = 0; port < kMaxMidiPorts; ++port)
        {
            for (int channel = 0; channel < kMaxMidiChannels; ++channel)
            {
                //
                // check if there are any events for port/channel in track:
                //
                iMPEvent i;
                for (i = el->begin(); i != el->end(); ++i)
                {
                    MidiPlayEvent ev = *i;
                    if (ev.type() != ME_SYSEX && ev.type() != ME_META
                            && ev.channel() == channel && ev.port() == port)
                        break;
                }
                if (i == el->end())
                    continue;
                MidiTrack* track = new MidiTrack();
                if ((*t)->isDrumTrack)
                {
                    track->setType(Track::DRUM);
                }

                track->setOutChannel(channel);
                track->setOutPort(port);

                MidiPort* mport = &midiPorts[track->outPort()];
                // this overwrites any instrument set for this port:
                mport->setInstrument(instr);

                EventList* mel = track->events();
                //buildMidiEventList(mel, el, track, division, first);
                // Don't do loops.
                buildMidiEventList(mel, el, track, division, first, false);
//.........这里部分代码省略.........
开发者ID:peter1000,项目名称:los,代码行数:101,代码来源:importmidi.cpp


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