Added old abandoned KDE3 version of the RoseGarden MIDI tool

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/rosegarden@1097595 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 391 insertions, 0 deletions

diff --git a/src/sound/SoundDriver.cpp b/src/sound/SoundDriver.cpp
new file mode 100644
index 0000000..aab641c
--- /dev/null
+++ b/src/sound/SoundDriver.cpp
@@ -0,0 +1,391 @@
+// -*- c-indentation-style:"stroustrup" c-basic-offset: 4 -*-
+/*
+    Rosegarden
+    A sequencer and musical notation editor.
+ 
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <[email protected]>,
+        Chris Cannam        <[email protected]>,
+        Richard Bown        <[email protected]>
+ 
+    The moral right of the authors to claim authorship of this work
+    has been asserted.
+ 
+    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 <stdlib.h>
+
+#include "SoundDriver.h"
+#include "WAVAudioFile.h"
+#include "MappedStudio.h"
+#include "AudioPlayQueue.h"
+
+#include <unistd.h>
+#include <sys/time.h>
+#include <pthread.h> // for mutex
+
+//#define DEBUG_SOUND_DRIVER 1
+
+namespace Rosegarden
+{
+
+// ---------- SoundDriver -----------
+//
+
+
+SoundDriver::SoundDriver(MappedStudio *studio, const std::string &name):
+        m_name(name),
+        m_driverStatus(NO_DRIVER),
+        m_playStartPosition(0, 0),
+        m_startPlayback(false),
+        m_playing(false),
+        m_midiRecordDevice(0),
+        m_recordStatus(RECORD_OFF),
+        m_midiRunningId(MidiInstrumentBase),
+        m_audioRunningId(AudioInstrumentBase),
+        //    m_audioQueueScavenger(4, 50),
+        m_audioQueue(0),
+        m_lowLatencyMode(true),
+        m_audioRecFileFormat(RIFFAudioFile::FLOAT),
+        m_studio(studio),
+        m_sequencerDataBlock(0),
+        m_externalTransport(0),
+        m_mmcStatus(TRANSPORT_OFF),
+        m_mtcStatus(TRANSPORT_OFF),
+        m_mmcId(0),            // default MMC id of 0
+        m_midiClockEnabled(false),
+        m_midiClockInterval(0, 0),
+        m_midiClockSendTime(RealTime::zeroTime),
+        m_midiSongPositionPointer(0)
+{
+    m_audioQueue = new AudioPlayQueue();
+}
+
+
+SoundDriver::~SoundDriver()
+{
+    std::cout << "SoundDriver::~SoundDriver (exiting)" << std::endl;
+    delete m_audioQueue;
+}
+
+MappedInstrument*
+SoundDriver::getMappedInstrument(InstrumentId id)
+{
+    std::vector<MappedInstrument*>::const_iterator it;
+
+    for (it = m_instruments.begin(); it != m_instruments.end(); it++) {
+        if ((*it)->getId() == id)
+            return (*it);
+    }
+
+    return 0;
+}
+
+void
+SoundDriver::initialiseAudioQueue(const std::vector<MappedEvent> &events)
+{
+    AudioPlayQueue *newQueue = new AudioPlayQueue();
+
+    for (std::vector<MappedEvent>::const_iterator i = events.begin();
+            i != events.end(); ++i) {
+
+        // Check for existence of file - if the sequencer has died
+        // and been restarted then we're not always loaded up with
+        // the audio file references we should have.  In the future
+        // we could make this just get the gui to reload our files
+        // when (or before) this fails.
+        //
+        AudioFile *audioFile = getAudioFile(i->getAudioID());
+
+        if (audioFile) {
+            MappedAudioFader *fader =
+                dynamic_cast<MappedAudioFader*>
+                (getMappedStudio()->getAudioFader(i->getInstrument()));
+
+            if (!fader) {
+                std::cerr << "WARNING: SoundDriver::initialiseAudioQueue: no fader for audio instrument " << i->getInstrument() << std::endl;
+                continue;
+            }
+
+            unsigned int channels = fader->getPropertyList(
+                                        MappedAudioFader::Channels)[0].toInt();
+
+            //#define DEBUG_PLAYING_AUDIO
+#ifdef DEBUG_PLAYING_AUDIO
+
+            std::cout << "Creating playable audio file: id " << audioFile->getId() << ", event time " << i->getEventTime() << ", time now " << getSequencerTime() << ", start marker " << i->getAudioStartMarker() << ", duration " << i->getDuration() << ", instrument " << i->getInstrument() << " channels " << channels << std::endl;
+#endif
+
+            RealTime bufferLength = getAudioReadBufferLength();
+            int bufferFrames = RealTime::realTime2Frame
+                               (bufferLength, getSampleRate());
+
+            PlayableAudioFile *paf = 0;
+
+            try {
+                paf = new PlayableAudioFile(i->getInstrument(),
+                                            audioFile,
+                                            i->getEventTime(),
+                                            i->getAudioStartMarker(),
+                                            i->getDuration(),
+                                            bufferFrames,
+                                            getSmallFileSize() * 1024,
+                                            channels,
+                                            getSampleRate());
+            } catch (...) {
+                continue;
+            }
+
+            paf->setRuntimeSegmentId(i->getRuntimeSegmentId());
+
+            if (i->isAutoFading()) {
+                paf->setAutoFade(true);
+                paf->setFadeInTime(i->getFadeInTime());
+                paf->setFadeOutTime(i->getFadeInTime());
+
+                //#define DEBUG_AUTOFADING
+#ifdef DEBUG_AUTOFADING
+
+                std::cout << "SoundDriver::initialiseAudioQueue - "
+                << "PlayableAudioFile is AUTOFADING - "
+                << "in = " << i->getFadeInTime()
+                << ", out = " << i->getFadeOutTime()
+                << std::endl;
+#endif
+
+            }
+#ifdef DEBUG_AUTOFADING
+            else {
+                std::cout << "PlayableAudioFile has no AUTOFADE"
+                << std::endl;
+            }
+#endif
+
+            newQueue->addScheduled(paf);
+        } else {
+            std::cerr << "SoundDriver::initialiseAudioQueue - "
+            << "can't find audio file reference for id " << i->getAudioID()
+            << std::endl;
+
+            std::cerr << "SoundDriver::initialiseAudioQueue - "
+            << "try reloading the current Rosegarden file"
+            << std::endl;
+        }
+    }
+
+    std::cout << "SoundDriver::initialiseAudioQueue -- new queue has "
+    << newQueue->size() << " files"
+    << std::endl;
+
+    if (newQueue->empty()) {
+        if (m_audioQueue->empty()) {
+            delete newQueue;
+            return ;
+        }
+    }
+
+    AudioPlayQueue *oldQueue = m_audioQueue;
+    m_audioQueue = newQueue;
+    if (oldQueue)
+        m_audioQueueScavenger.claim(oldQueue);
+}
+
+void
+SoundDriver::clearAudioQueue()
+{
+    std::cout << "SoundDriver::clearAudioQueue" << std::endl;
+
+    if (m_audioQueue->empty())
+        return ;
+
+    AudioPlayQueue *newQueue = new AudioPlayQueue();
+    AudioPlayQueue *oldQueue = m_audioQueue;
+    m_audioQueue = newQueue;
+    if (oldQueue)
+        m_audioQueueScavenger.claim(oldQueue);
+}
+void
+SoundDriver::cancelAudioFile(MappedEvent *mE)
+{
+    std::cout << "SoundDriver::cancelAudioFile" << std::endl;
+
+    if (!m_audioQueue)
+        return ;
+
+    // For now we only permit cancelling unscheduled files.
+
+    const AudioPlayQueue::FileList &files = m_audioQueue->getAllUnscheduledFiles();
+    for (AudioPlayQueue::FileList::const_iterator fi = files.begin();
+            fi != files.end(); ++fi) {
+        PlayableAudioFile *file = *fi;
+        if (mE->getRuntimeSegmentId() == -1) {
+
+            // ERROR? The comparison between file->getAudioFile()->getId() of type unsigned int
+            //        and mE->getAudioID() of type int.
+            if (file->getInstrument() == mE->getInstrument() &&
+                    int(file->getAudioFile()->getId() == mE->getAudioID())) {
+                file->cancel();
+            }
+        } else {
+            if (file->getRuntimeSegmentId() == mE->getRuntimeSegmentId() &&
+                    file->getStartTime() == mE->getEventTime()) {
+                file->cancel();
+            }
+        }
+    }
+}
+
+const AudioPlayQueue *
+SoundDriver::getAudioQueue() const
+{
+    return m_audioQueue;
+}
+
+
+void
+SoundDriver::setMappedInstrument(MappedInstrument *mI)
+{
+    std::vector<MappedInstrument*>::iterator it;
+
+    // If we match then change existing entry
+    for (it = m_instruments.begin(); it != m_instruments.end(); it++) {
+        if ((*it)->getId() == mI->getId()) {
+            (*it)->setChannel(mI->getChannel());
+            (*it)->setType(mI->getType());
+            delete mI;
+            return ;
+        }
+    }
+
+    // else create a new one
+    m_instruments.push_back(mI);
+
+    std::cout << "SoundDriver: setMappedInstrument() : "
+    << "type = " << mI->getType() << " : "
+    << "channel = " << (int)(mI->getChannel()) << " : "
+    << "id = " << mI->getId() << std::endl;
+
+}
+
+unsigned int
+SoundDriver::getDevices()
+{
+    return m_devices.size();
+}
+
+MappedDevice
+SoundDriver::getMappedDevice(DeviceId id)
+{
+    MappedDevice retDevice;
+    std::vector<MappedInstrument*>::iterator it;
+
+    std::vector<MappedDevice*>::iterator dIt = m_devices.begin();
+    for (; dIt != m_devices.end(); dIt++) {
+        if ((*dIt)->getId() == id)
+            retDevice = **dIt;
+    }
+
+    // If we match then change existing entry
+    for (it = m_instruments.begin(); it != m_instruments.end(); it++) {
+        if ((*it)->getDevice() == id)
+            retDevice.push_back(*it);
+    }
+
+#ifdef DEBUG_SOUND_DRIVER
+    std::cout << "SoundDriver::getMappedDevice(" << id << ") - "
+    << "name = \"" << retDevice.getName()
+    << "\" type = " << retDevice.getType()
+    << " direction = " << retDevice.getDirection()
+    << " connection = \"" << retDevice.getConnection() << "\""
+    << " recording = " << retDevice.isRecording()
+    << std::endl;
+#endif
+
+    return retDevice;
+}
+
+
+
+bool
+SoundDriver::addAudioFile(const std::string &fileName, unsigned int id)
+{
+    AudioFile *ins = 0;
+
+    try {
+        ins = new WAVAudioFile(id, fileName, fileName);
+        ins->open();
+        m_audioFiles.push_back(ins);
+
+        //    std::cout << "Sequencer::addAudioFile() = \"" << fileName << "\"" << std::endl;
+
+        return true;
+
+    } catch (SoundFile::BadSoundFileException e) {
+        std::cerr << "SoundDriver::addAudioFile: Failed to add audio file " << fileName << ": " << e.getMessage() << std::endl;
+        delete ins;
+        return false;
+    }
+}
+
+bool
+SoundDriver::removeAudioFile(unsigned int id)
+{
+    std::vector<AudioFile*>::iterator it;
+    for (it = m_audioFiles.begin(); it != m_audioFiles.end(); it++) {
+        if ((*it)->getId() == id) {
+            std::cout << "Sequencer::removeAudioFile() = \"" <<
+            (*it)->getFilename() << "\"" << std::endl;
+
+            delete (*it);
+            m_audioFiles.erase(it);
+            return true;
+        }
+    }
+
+    return false;
+}
+
+AudioFile*
+SoundDriver::getAudioFile(unsigned int id)
+{
+    std::vector<AudioFile*>::iterator it;
+    for (it = m_audioFiles.begin(); it != m_audioFiles.end(); it++) {
+        if ((*it)->getId() == id)
+            return *it;
+    }
+
+    return 0;
+}
+
+void
+SoundDriver::clearAudioFiles()
+{
+    //    std::cout << "SoundDriver::clearAudioFiles() - clearing down audio files"
+    //              << std::endl;
+
+    std::vector<AudioFile*>::iterator it;
+    for (it = m_audioFiles.begin(); it != m_audioFiles.end(); it++)
+        delete(*it);
+
+    m_audioFiles.erase(m_audioFiles.begin(), m_audioFiles.end());
+}
+
+void
+SoundDriver::sleep(const RealTime &rt)
+{
+    // The usleep man page says it's deprecated and we should use
+    // nanosleep.  And that's what we did.  But it seems quite a few
+    // people don't have nanosleep, so we're reverting to usleep.
+
+    unsigned long usec = rt.sec * 1000000 + rt.usec();
+    usleep(usec);
+}
+
+
+}
+