Merge pull request #1155 from falkTX/stable-1.1

Initial version of Carla plugin for LMMS

CMakeLists.txt

@@ -29,6 +29,7 @@ INCLUDE(DetectMachine)
 OPTION(WANT_ALSA	"Include ALSA (Advanced Linux Sound Architecture) support" ON)
 OPTION(WANT_CALF	"Include CALF LADSPA plugins" ON)
 OPTION(WANT_CAPS	"Include C* Audio Plugin Suite (LADSPA plugins)" ON)
+OPTION(WANT_CARLA	"Include Carla plugin" ON)
 OPTION(WANT_CMT		"Include Computer Music Toolkit LADSPA plugins" ON)
 OPTION(WANT_JACK	"Include JACK (Jack Audio Connection Kit) support" ON)
 OPTION(WANT_OGGVORBIS	"Include OGG/Vorbis support" ON)
@@ -157,6 +158,18 @@ SET(STATUS_TAP "not built as requested")
 ENDIF(WANT_TAP)
 
 
+# check for CARLA
+IF(WANT_CARLA)
+	PKG_CHECK_MODULES(CARLA carla-standalone>=1.9.5)
+	IF(CARLA_FOUND)
+		SET(LMMS_HAVE_CARLA TRUE)
+		SET(STATUS_CARLA "OK")
+	ELSE(CARLA_FOUND)
+		SET(STATUS_CARLA "not found, please install the latest carla")
+	ENDIF(CARLA_FOUND)
+ENDIF(WANT_CARLA)
+
+
 # check for SDL
 IF(WANT_SDL)
 	SET(SDL_BUILDING_LIBRARY TRUE)
@@ -606,6 +619,7 @@ MESSAGE(
 MESSAGE(
 "Optional plugins\n"
 "----------------\n"
+"* Carla Patchbay & Rack       : ${STATUS_CARLA}\n"
 "* SoundFont2 player           : ${STATUS_FLUIDSYNTH}\n"
 "* Stk Mallets                 : ${STATUS_STK}\n"
 "* VST-instrument hoster       : ${STATUS_VST}\n"

plugins/CMakeLists.txt

@@ -2,6 +2,9 @@ ADD_SUBDIRECTORY(Amplifier)
 ADD_SUBDIRECTORY(audio_file_processor)
 ADD_SUBDIRECTORY(BassBooster)
 ADD_SUBDIRECTORY(bit_invader)
+ADD_SUBDIRECTORY(carlabase)
+ADD_SUBDIRECTORY(carlapatchbay)
+ADD_SUBDIRECTORY(carlarack)
 ADD_SUBDIRECTORY(DualFilter)
 ADD_SUBDIRECTORY(dynamics_processor)
 ADD_SUBDIRECTORY(flp_import)

plugins/carlabase/CMakeLists.txt

@@ -0,0 +1,12 @@
+if(LMMS_HAVE_CARLA)
+        INCLUDE(BuildPlugin)
+        INCLUDE_DIRECTORIES(${CARLA_INCLUDE_DIRS})
+        LINK_DIRECTORIES(${CARLA_LIBRARY_DIRS})
+        LINK_LIBRARIES(${CARLA_LIBRARIES})
+        BUILD_PLUGIN(carlabase carla.cpp carla.h MOCFILES carla.h)
+        SET_TARGET_PROPERTIES(carlabase
+                PROPERTIES SKIP_BUILD_RPATH TRUE
+                BUILD_WITH_INSTALL_RPATH TRUE
+                INSTALL_RPATH_USE_LINK_PATH TRUE
+                INSTALL_RPATH "${CARLA_RPATH}")
+endif(LMMS_HAVE_CARLA)

plugins/carlabase/carla.cpp

@@ -0,0 +1,528 @@
+/*
+ * carla.cpp - Carla for LMMS
+ *
+ * Copyright (C) 2014 Filipe Coelho <falktx@falktx.com>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include "carla.h"
+
+#define REAL_BUILD // FIXME this shouldn't be needed
+#include "CarlaHost.h"
+
+#include "engine.h"
+#include "song.h"
+#include "InstrumentPlayHandle.h"
+#include "InstrumentTrack.h"
+
+#include <QApplication>
+#include <QFileDialog>
+#include <QPushButton>
+#include <QTimerEvent>
+#include <QVBoxLayout>
+
+#include <cstring>
+
+// this doesn't seem to be defined anywhere
+static const double ticksPerBeat = 48.0;
+
+/*
+ * Current TODO items:
+ *  - get plugin instance name (to use in external window title)
+ *  - offline mode change callback
+ *  - midi output
+ *  - background artwork
+ *
+ * All other items are to be done in Carla itself.
+ */
+
+// -----------------------------------------------------------------------
+
+#define handlePtr ((CarlaInstrument*)handle)
+
+static uint32_t host_get_buffer_size(NativeHostHandle handle)
+{
+    return handlePtr->handleGetBufferSize();
+}
+
+static double host_get_sample_rate(NativeHostHandle handle)
+{
+    return handlePtr->handleGetSampleRate();
+}
+
+static bool host_is_offline(NativeHostHandle handle)
+{
+    return handlePtr->handleIsOffline();
+}
+
+static const NativeTimeInfo* host_get_time_info(NativeHostHandle handle)
+{
+    return handlePtr->handleGetTimeInfo();
+}
+
+static bool host_write_midi_event(NativeHostHandle, const NativeMidiEvent*)
+{
+    return false; // unsupported?
+}
+
+static void host_ui_parameter_changed(NativeHostHandle handle, uint32_t index, float value)
+{
+    handlePtr->handleUiParameterChanged(index, value);
+}
+
+static void host_ui_custom_data_changed(NativeHostHandle handle, const char* key, const char* value)
+{
+    // unused
+}
+
+static void host_ui_closed(NativeHostHandle handle)
+{
+    handlePtr->handleUiClosed();
+}
+
+static intptr_t host_dispatcher(NativeHostHandle handle, NativeHostDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)
+{
+    return handlePtr->handleDispatcher(opcode, index, value, ptr, opt);
+}
+
+#undef handlePtr
+
+// -----------------------------------------------------------------------
+
+static const char* host_ui_open_file(NativeHostHandle, bool isDir, const char* title, const char* filter)
+{
+    static QByteArray retStr;
+    const QFileDialog::Options options(isDir ? QFileDialog::ShowDirsOnly : 0x0);
+
+    retStr = QFileDialog::getOpenFileName(QApplication::activeWindow(), title, "", filter, NULL, options).toUtf8();
+
+    return retStr.isEmpty() ? NULL : retStr.constData();
+}
+
+static const char* host_ui_save_file(NativeHostHandle, bool isDir, const char* title, const char* filter)
+{
+    static QByteArray retStr;
+    const QFileDialog::Options options(isDir ? QFileDialog::ShowDirsOnly : 0x0);
+
+    retStr = QFileDialog::getSaveFileName(QApplication::activeWindow(), title, "", filter, NULL, options).toUtf8();
+
+    return retStr.isEmpty() ? NULL : retStr.constData();
+}
+
+// -----------------------------------------------------------------------
+
+CARLA_EXPORT
+const NativePluginDescriptor* carla_get_native_patchbay_plugin();
+
+CARLA_EXPORT
+const NativePluginDescriptor* carla_get_native_rack_plugin();
+
+// -----------------------------------------------------------------------
+
+CarlaInstrument::CarlaInstrument(InstrumentTrack* const instrumentTrack, const Descriptor* const descriptor, const bool isPatchbay)
+    : Instrument(instrumentTrack, descriptor),
+      kIsPatchbay(isPatchbay),
+      fHandle(NULL),
+      fDescriptor(isPatchbay ? carla_get_native_patchbay_plugin() : carla_get_native_rack_plugin()),
+      fMidiEventCount(0)
+{
+    fHost.handle      = this;
+    fHost.uiName      = NULL;
+    fHost.uiParentId  = 0;
+
+    // figure out prefix from dll filename
+    QString dllName(carla_get_library_filename());
+
+#if defined(CARLA_OS_LINUX)
+    fHost.resourceDir = strdup(QString(dllName.split("/lib/carla")[0] + "/share/carla/resources/").toUtf8().constData());
+#else
+    fHost.resourceDir = NULL;
+#endif
+
+    fHost.get_buffer_size        = host_get_buffer_size;
+    fHost.get_sample_rate        = host_get_sample_rate;
+    fHost.is_offline             = host_is_offline;
+    fHost.get_time_info          = host_get_time_info;
+    fHost.write_midi_event       = host_write_midi_event;
+    fHost.ui_parameter_changed   = host_ui_parameter_changed;
+    fHost.ui_custom_data_changed = host_ui_custom_data_changed;
+    fHost.ui_closed              = host_ui_closed;
+    fHost.ui_open_file           = host_ui_open_file;
+    fHost.ui_save_file           = host_ui_save_file;
+    fHost.dispatcher             = host_dispatcher;
+
+    std::memset(&fTimeInfo, 0, sizeof(NativeTimeInfo));
+    fTimeInfo.bbt.valid = true; // always valid
+
+    fHandle = fDescriptor->instantiate(&fHost);
+    Q_ASSERT(fHandle != NULL);
+
+    if (fHandle != NULL && fDescriptor->activate != NULL)
+        fDescriptor->activate(fHandle);
+
+    // we need a play-handle which cares for calling play()
+    InstrumentPlayHandle * iph = new InstrumentPlayHandle( this );
+    engine::mixer()->addPlayHandle( iph );
+
+    connect(engine::mixer(), SIGNAL(sampleRateChanged()), this, SLOT(sampleRateChanged()));
+}
+
+CarlaInstrument::~CarlaInstrument()
+{
+    engine::mixer()->removePlayHandles( instrumentTrack() );
+
+    if (fHost.resourceDir != NULL)
+    {
+        std::free((char*)fHost.resourceDir);
+        fHost.resourceDir = NULL;
+    }
+
+    if (fHost.uiName != NULL)
+    {
+        std::free((char*)fHost.uiName);
+        fHost.uiName = NULL;
+    }
+
+    if (fHandle == NULL)
+        return;
+
+    if (fDescriptor->deactivate != NULL)
+        fDescriptor->deactivate(fHandle);
+
+    if (fDescriptor->cleanup != NULL)
+        fDescriptor->cleanup(fHandle);
+
+    fHandle = NULL;
+}
+
+// -------------------------------------------------------------------
+
+uint32_t CarlaInstrument::handleGetBufferSize() const
+{
+    return engine::mixer()->framesPerPeriod();
+}
+
+double CarlaInstrument::handleGetSampleRate() const
+{
+    return engine::mixer()->processingSampleRate();
+}
+
+bool CarlaInstrument::handleIsOffline() const
+{
+    return false; // TODO
+}
+
+const NativeTimeInfo* CarlaInstrument::handleGetTimeInfo() const
+{
+    return &fTimeInfo;
+}
+
+void CarlaInstrument::handleUiParameterChanged(const uint32_t /*index*/, const float /*value*/) const
+{
+}
+
+void CarlaInstrument::handleUiClosed()
+{
+    emit uiClosed();
+}
+
+intptr_t CarlaInstrument::handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt)
+{
+    intptr_t ret = 0;
+
+    switch (opcode)
+    {
+    case HOST_OPCODE_NULL:
+        break;
+    case HOST_OPCODE_UPDATE_PARAMETER:
+    case HOST_OPCODE_UPDATE_MIDI_PROGRAM:
+    case HOST_OPCODE_RELOAD_PARAMETERS:
+    case HOST_OPCODE_RELOAD_MIDI_PROGRAMS:
+    case HOST_OPCODE_RELOAD_ALL:
+        // nothing
+        break;
+    case HOST_OPCODE_UI_UNAVAILABLE:
+        handleUiClosed();
+        break;
+    }
+
+    return ret;
+
+    // unused for now
+    (void)index; (void)value; (void)ptr; (void)opt;
+}
+
+// -------------------------------------------------------------------
+
+Instrument::Flags CarlaInstrument::flags() const
+{
+    return IsSingleStreamed|IsMidiBased|IsNotBendable;
+}
+
+QString CarlaInstrument::nodeName() const
+{
+    return  descriptor()->name;
+}
+
+void CarlaInstrument::saveSettings(QDomDocument& doc, QDomElement& parent)
+{
+    if (fHandle == NULL || fDescriptor->get_state == NULL)
+        return;
+
+    char* const state = fDescriptor->get_state(fHandle);
+
+    if (state == NULL)
+        return;
+
+    QDomDocument carlaDoc("carla");
+
+    if (carlaDoc.setContent(QString(state)))
+    {
+        QDomNode n = doc.importNode(carlaDoc.documentElement(), true);
+        parent.appendChild(n);
+    }
+
+    std::free(state);
+}
+
+void CarlaInstrument::loadSettings(const QDomElement& elem)
+{
+    if (fHandle == NULL || fDescriptor->set_state == NULL)
+        return;
+
+    QDomDocument carlaDoc("carla");
+    carlaDoc.appendChild(carlaDoc.importNode(elem.firstChildElement(), true ));
+
+    fDescriptor->set_state(fHandle, carlaDoc.toString(0).toUtf8().constData());
+}
+
+void CarlaInstrument::play(sampleFrame* workingBuffer)
+{
+    const uint bufsize = engine::mixer()->framesPerPeriod();
+
+    std::memset(workingBuffer, 0, sizeof(sample_t)*bufsize*DEFAULT_CHANNELS);
+
+    if (fHandle == NULL)
+    {
+        instrumentTrack()->processAudioBuffer(workingBuffer, bufsize, NULL);
+        return;
+    }
+
+    // set time info
+    song* const s = engine::getSong();
+    fTimeInfo.playing  = s->isPlaying();
+    fTimeInfo.frame    = s->getPlayPos(s->playMode()).frames(engine::framesPerTick());
+    fTimeInfo.usecs    = s->getMilliseconds()*1000;
+    fTimeInfo.bbt.bar  = s->getTacts() + 1;
+    fTimeInfo.bbt.beat = s->getBeat() + 1;
+    fTimeInfo.bbt.tick = s->getBeatTicks();
+    fTimeInfo.bbt.barStartTick   = ticksPerBeat*s->getTimeSigModel().getNumerator()*s->getTacts();
+    fTimeInfo.bbt.beatsPerBar    = s->getTimeSigModel().getNumerator();
+    fTimeInfo.bbt.beatType       = s->getTimeSigModel().getDenominator();
+    fTimeInfo.bbt.ticksPerBeat   = ticksPerBeat;
+    fTimeInfo.bbt.beatsPerMinute = s->getTempo();
+
+    float buf1[bufsize];
+    float buf2[bufsize];
+    float* rBuf[] = { buf1, buf2 };
+    std::memset(buf1, 0, sizeof(float)*bufsize);
+    std::memset(buf2, 0, sizeof(float)*bufsize);
+
+    {
+        const QMutexLocker ml(&fMutex);
+        fDescriptor->process(fHandle, rBuf, rBuf, bufsize, fMidiEvents, fMidiEventCount);
+        fMidiEventCount = 0;
+    }
+
+    for (uint i=0; i < bufsize; ++i)
+    {
+        workingBuffer[i][0] = buf1[i];
+        workingBuffer[i][1] = buf2[i];
+    }
+
+    instrumentTrack()->processAudioBuffer(workingBuffer, bufsize, NULL);
+}
+
+bool CarlaInstrument::handleMidiEvent(const MidiEvent& event, const MidiTime&, f_cnt_t offset)
+{
+    const QMutexLocker ml(&fMutex);
+
+    if (fMidiEventCount >= kMaxMidiEvents)
+        return false;
+
+    NativeMidiEvent& nEvent(fMidiEvents[fMidiEventCount++]);
+    std::memset(&nEvent, 0, sizeof(NativeMidiEvent));
+
+    nEvent.port    = 0;
+    nEvent.time    = offset;
+    nEvent.data[0] = event.type() | (event.channel() & 0x0F);
+
+    switch (event.type())
+    {
+    case MidiNoteOn:
+        if (event.velocity() > 0)
+        {
+            if (event.key() < 0 || event.key() > MidiMaxKey)
+                break;
+
+            nEvent.data[1] = event.key();
+            nEvent.data[2] = event.velocity();
+            nEvent.size    = 3;
+            break;
+        }
+        else
+        {
+            nEvent.data[0] = MidiNoteOff | (event.channel() & 0x0F);
+            // nobreak
+        }
+
+    case MidiNoteOff:
+        if (event.key() < 0 || event.key() > MidiMaxKey)
+            break;
+
+        nEvent.data[1] = event.key();
+        nEvent.data[2] = event.velocity();
+        nEvent.size    = 3;
+        break;
+
+    case MidiKeyPressure:
+        nEvent.data[1] = event.key();
+        nEvent.data[2] = event.velocity();
+        nEvent.size    = 3;
+        break;
+
+    case MidiControlChange:
+        nEvent.data[1] = event.controllerNumber();
+        nEvent.data[2] = event.controllerValue();
+        nEvent.size    = 3;
+        break;
+
+    case MidiProgramChange:
+        nEvent.data[1] = event.program();
+        nEvent.size    = 2;
+        break;
+
+    case MidiChannelPressure:
+        nEvent.data[1] = event.channelPressure();
+        nEvent.size    = 2;
+        break;
+
+    case MidiPitchBend:
+        nEvent.data[1] = event.pitchBend() & 0x7f;
+        nEvent.data[2] = event.pitchBend() >> 7;
+        nEvent.size    = 3;
+        break;
+
+    default:
+        // unhandled
+        --fMidiEventCount;
+        break;
+    }
+
+    return true;
+}
+
+PluginView* CarlaInstrument::instantiateView(QWidget* parent)
+{
+    if (QWidget* const window = parent->window())
+        fHost.uiParentId = window->winId();
+    else
+        fHost.uiParentId = 0;
+
+    std::free((char*)fHost.uiName);
+
+    // TODO - get plugin instance name
+    //fHost.uiName = strdup(parent->windowTitle().toUtf8().constData());
+    fHost.uiName = strdup(kIsPatchbay ? "CarlaPatchbay-LMMS" : "CarlaRack-LMMS");
+
+    return new CarlaInstrumentView(this, parent);
+}
+
+void CarlaInstrument::sampleRateChanged()
+{
+    fDescriptor->dispatcher(fHandle, PLUGIN_OPCODE_SAMPLE_RATE_CHANGED, 0, 0, nullptr, handleGetSampleRate());
+}
+
+// -------------------------------------------------------------------
+
+CarlaInstrumentView::CarlaInstrumentView(CarlaInstrument* const instrument, QWidget* const parent)
+    : InstrumentView(instrument, parent),
+      fHandle(instrument->fHandle),
+      fDescriptor(instrument->fDescriptor),
+      fTimerId(fHandle != NULL && fDescriptor->ui_idle != NULL ? startTimer(30) : 0)
+{
+    setAutoFillBackground(true);
+
+    //QPalette pal;
+    //pal.setBrush(backgroundRole(), PLUGIN_NAME::getIconPixmap("artwork"));
+    //setPalette(pal);
+
+    QVBoxLayout * l = new QVBoxLayout( this );
+    l->setContentsMargins( 20, 80, 10, 10 );
+    l->setSpacing( 10 );
+
+    m_toggleUIButton = new QPushButton( tr( "Show GUI" ), this );
+    m_toggleUIButton->setCheckable( true );
+    m_toggleUIButton->setChecked( false );
+    //m_toggleUIButton->setIcon( embed::getIconPixmap( "zoom" ) );
+    //m_toggleUIButton->setFont( pointSize<8>( m_toggleUIButton->font() ) );
+    connect( m_toggleUIButton, SIGNAL( clicked(bool) ), this, SLOT( toggleUI( bool ) ) );
+
+    m_toggleUIButton->setWhatsThis(
+                tr( "Click here to show or hide the graphical user interface (GUI) of Carla." ) );
+
+    l->addWidget( m_toggleUIButton );
+    l->addStretch();
+
+    connect(instrument, SIGNAL(uiClosed()), this, SLOT(uiClosed()));
+}
+
+CarlaInstrumentView::~CarlaInstrumentView()
+{
+    if (m_toggleUIButton->isChecked())
+        toggleUI(false);
+}
+
+void CarlaInstrumentView::toggleUI(bool visible)
+{
+    if (fHandle != NULL && fDescriptor->ui_show != NULL)
+        fDescriptor->ui_show(fHandle, visible);
+}
+
+void CarlaInstrumentView::uiClosed()
+{
+    m_toggleUIButton->setChecked(false);
+}
+
+void CarlaInstrumentView::modelChanged()
+{
+}
+
+void CarlaInstrumentView::timerEvent(QTimerEvent* event)
+{
+    if (event->timerId() == fTimerId)
+        fDescriptor->ui_idle(fHandle);
+
+    InstrumentView::timerEvent(event);
+}
+
+// -------------------------------------------------------------------
+
+#include "moc_carla.cxx"

plugins/carlabase/carla.h

@@ -0,0 +1,109 @@
+/*
+ * carla.h - Carla for LMMS
+ *
+ * Copyright (C) 2014 Filipe Coelho <falktx@falktx.com>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef CARLA_H
+#define CARLA_H
+
+#include "CarlaNative.h"
+
+#include "Instrument.h"
+#include "InstrumentView.h"
+
+class QPushButton;
+
+class PLUGIN_EXPORT CarlaInstrument : public Instrument
+{
+    Q_OBJECT
+
+public:
+    static const uint32_t kMaxMidiEvents = 512;
+
+    CarlaInstrument(InstrumentTrack* const instrumentTrack, const Descriptor* const descriptor, const bool isPatchbay);
+    virtual ~CarlaInstrument();
+
+    // CarlaNative functions
+    uint32_t handleGetBufferSize() const;
+    double handleGetSampleRate() const;
+    bool handleIsOffline() const;
+    const NativeTimeInfo* handleGetTimeInfo() const;
+    void handleUiParameterChanged(const uint32_t index, const float value) const;
+    void handleUiClosed();
+    intptr_t handleDispatcher(const NativeHostDispatcherOpcode opcode, const int32_t index, const intptr_t value, void* const ptr, const float opt);
+
+    // LMMS functions
+    virtual Flags flags() const;
+    virtual QString nodeName() const;
+    virtual void saveSettings(QDomDocument& doc, QDomElement& parent);
+    virtual void loadSettings(const QDomElement& elem);
+    virtual void play(sampleFrame* workingBuffer);
+    virtual bool handleMidiEvent(const MidiEvent& event, const MidiTime& time, f_cnt_t offset);
+    virtual PluginView* instantiateView(QWidget* parent);
+
+signals:
+    void uiClosed();
+
+private slots:
+    void sampleRateChanged();
+
+private:
+    const bool kIsPatchbay;
+
+    NativePluginHandle fHandle;
+    NativeHostDescriptor fHost;
+    const NativePluginDescriptor* fDescriptor;
+
+    uint32_t        fMidiEventCount;
+    NativeMidiEvent fMidiEvents[kMaxMidiEvents];
+    NativeTimeInfo  fTimeInfo;
+
+    // this is only needed because note-offs are being sent during play
+    QMutex fMutex;
+
+    friend class CarlaInstrumentView;
+};
+
+class CarlaInstrumentView : public InstrumentView
+{
+    Q_OBJECT
+
+public:
+    CarlaInstrumentView(CarlaInstrument* const instrument, QWidget* const parent);
+    virtual ~CarlaInstrumentView();
+
+private slots:
+    void toggleUI(bool);
+    void uiClosed();
+
+private:
+    virtual void modelChanged();
+    virtual void timerEvent(QTimerEvent*);
+
+    NativePluginHandle fHandle;
+    const NativePluginDescriptor* fDescriptor;
+    int fTimerId;
+
+    QPushButton * m_toggleUIButton;
+};
+
+#endif

plugins/carlapatchbay/CMakeLists.txt

@@ -0,0 +1,8 @@
+if(LMMS_HAVE_CARLA)
+	ADD_DEFINITIONS(-DCARLA_PLUGIN_PATCHBAY -DCARLA_PLUGIN_SYNTH)
+	INCLUDE(BuildPlugin)
+	INCLUDE_DIRECTORIES(${CARLA_INCLUDE_DIRS} "${CMAKE_CURRENT_SOURCE_DIR}/../carlabase")
+	LINK_DIRECTORIES("${CMAKE_CURRENT_BINARY_DIR}/../carlabase")
+	LINK_LIBRARIES(carlabase)
+	BUILD_PLUGIN(carlapatchbay carlapatchbay.cpp EMBEDDED_RESOURCES "${CMAKE_CURRENT_SOURCE_DIR}/*.png")
+endif(LMMS_HAVE_CARLA)

plugins/carlapatchbay/carlapatchbay.cpp

@@ -0,0 +1,51 @@
+/*
+ * carlapatchbay.cpp - Carla for LMMS (Patchbay)
+ *
+ * Copyright (C) 2014 Filipe Coelho <falktx@falktx.com>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include "carla.h"
+
+#include "embed.cpp"
+
+extern "C"
+{
+
+Plugin::Descriptor PLUGIN_EXPORT carlapatchbay_plugin_descriptor =
+{
+    STRINGIFY( PLUGIN_NAME ),
+    "Carla Patchbay",
+    QT_TRANSLATE_NOOP( "pluginBrowser",
+                       "Carla Patchbay Instrument" ),
+    "falkTX <falktx/at/falktx.com>",
+    0x0195,
+    Plugin::Instrument,
+    new PluginPixmapLoader( "logo" ),
+    NULL,
+    NULL
+} ;
+
+Plugin* PLUGIN_EXPORT lmms_plugin_main(Model*, void* data)
+{
+    return new CarlaInstrument(static_cast<InstrumentTrack*>(data), &carlapatchbay_plugin_descriptor, true);
+}
+
+}

plugins/carlarack/CMakeLists.txt

@@ -0,0 +1,8 @@
+if(LMMS_HAVE_CARLA)
+	ADD_DEFINITIONS(-DCARLA_PLUGIN_RACK -DCARLA_PLUGIN_SYNTH)
+	INCLUDE(BuildPlugin)
+	INCLUDE_DIRECTORIES(${CARLA_INCLUDE_DIRS} "${CMAKE_CURRENT_SOURCE_DIR}/../carlabase")
+	LINK_DIRECTORIES("${CMAKE_CURRENT_BINARY_DIR}/../carlabase")
+	LINK_LIBRARIES(carlabase)
+	BUILD_PLUGIN(carlarack carlarack.cpp EMBEDDED_RESOURCES "${CMAKE_CURRENT_SOURCE_DIR}/*.png")
+endif(LMMS_HAVE_CARLA)

plugins/carlarack/carlarack.cpp

@@ -0,0 +1,51 @@
+/*
+ * carlarack.cpp - Carla for LMMS (Rack)
+ *
+ * Copyright (C) 2014 Filipe Coelho <falktx@falktx.com>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include "carla.h"
+
+#include "embed.cpp"
+
+extern "C"
+{
+
+Plugin::Descriptor PLUGIN_EXPORT carlarack_plugin_descriptor =
+{
+    STRINGIFY( PLUGIN_NAME ),
+    "Carla Rack",
+    QT_TRANSLATE_NOOP( "pluginBrowser",
+                       "Carla Rack Instrument" ),
+    "falkTX <falktx/at/falktx.com>",
+    0x0195,
+    Plugin::Instrument,
+    new PluginPixmapLoader( "logo" ),
+    NULL,
+    NULL
+} ;
+
+Plugin* PLUGIN_EXPORT lmms_plugin_main(Model*, void* data)
+{
+    return new CarlaInstrument(static_cast<InstrumentTrack*>(data), &carlarack_plugin_descriptor, false);
+}
+
+}