trunk/src/Sampler.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005 - 2007 Christian Schoenebeck                       *
 *                                                                         *
 *   This library 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 library 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 library; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include <sstream>

#include "Sampler.h"

#include "engines/EngineFactory.h"
#include "engines/EngineChannelFactory.h"
#include "drivers/audio/AudioOutputDeviceFactory.h"
#include "drivers/midi/MidiInputDeviceFactory.h"
#include "drivers/midi/MidiInstrumentMapper.h"
#include "network/lscpserver.h"

namespace LinuxSampler {

    // ******************************************************************
    // * SamplerChannel

    SamplerChannel::SamplerChannel(Sampler* pS) {
        pSampler           = pS;
        pEngineChannel     = NULL;
        pAudioOutputDevice = NULL;
        pMidiInputDevice   = NULL;
        iMidiPort          = 0;
        midiChannel        = midi_chan_all;
        iIndex             = -1;
    }

    SamplerChannel::~SamplerChannel() {
        if (pEngineChannel) {
            Engine* engine = pEngineChannel->GetEngine();
            if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);

            MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
            if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
            if (pEngineChannel) {
                if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
                EngineChannelFactory::Destroy(pEngineChannel);

                // reconnect engine if it still exists
                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
            }
        }
    }

    void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
        dmsg(2,("SamplerChannel: Assigning engine type..."));

        // create new engine channel
        EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
        if (!pNewEngineChannel) throw Exception("Unknown engine type");

        //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
        pNewEngineChannel->iSamplerChannelIndex = Index();

        // dereference midi input port.
        MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
        // disconnect old engine channel
        if (pEngineChannel) {
            Engine* engine = pEngineChannel->GetEngine();
            if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);

            if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
            if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
            EngineChannelFactory::Destroy(pEngineChannel);

            // reconnect engine if it still exists
            const std::set<Engine*>& engines = EngineFactory::EngineInstances();
            if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
        }

        // connect new engine channel
        if (pAudioOutputDevice) {
            pNewEngineChannel->Connect(pAudioOutputDevice);
            pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
        }
        if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
        pEngineChannel = pNewEngineChannel;

        // from now on get MIDI device and port from EngineChannel object
        this->pMidiInputDevice = NULL;
        this->iMidiPort        = 0;

        pEngineChannel->StatusChanged(true);

        dmsg(2,("OK\n"));
    }

    void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
        if(pAudioOutputDevice == pDevice) return;

        // disconnect old device
        if (pAudioOutputDevice && pEngineChannel) {
            Engine* engine = pEngineChannel->GetEngine();
            pAudioOutputDevice->Disconnect(engine);

            pEngineChannel->DisconnectAudioOutputDevice();

            // reconnect engine if it still exists
            const std::set<Engine*>& engines = EngineFactory::EngineInstances();
            if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
        }

        // connect new device
        pAudioOutputDevice = pDevice;
        if (pEngineChannel) {
            pEngineChannel->Connect(pAudioOutputDevice);
            pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
        }
    }

    void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
       SetMidiInput(pDevice, 0, GetMidiInputChannel());
    }

    void SamplerChannel::SetMidiInputPort(int MidiPort) {
       SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
    }

    void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
       SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
    }

    void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
        if (!pDevice) throw Exception("No MIDI input device assigned.");

        // get old and new midi input port
        MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
        MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);

        // disconnect old device port
        if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
        // remember new device, port and channel if not engine channel yet created
        if (!pEngineChannel) {
            this->pMidiInputDevice = pDevice;
            this->iMidiPort        = iMidiPort;
            this->midiChannel      = MidiChannel;
        }

        // connect new device port
        if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
        // Ooops.
        if (pNewMidiInputPort == NULL)
            throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
    }

    EngineChannel* SamplerChannel::GetEngineChannel() {
        return pEngineChannel;
    }

    midi_chan_t SamplerChannel::GetMidiInputChannel() {
        if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
        return this->midiChannel;
    }

    int SamplerChannel::GetMidiInputPort() {
        MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
        if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
        return iMidiPort;
    }

    AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
        return pAudioOutputDevice;
    }

    MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
        if (pEngineChannel)
            pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
        return pMidiInputDevice;
    }

    uint SamplerChannel::Index() {
        if (iIndex >= 0) return iIndex;

        Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin();
        for (; iter != pSampler->mSamplerChannels.end(); iter++) {
            if (iter->second == this) {
                iIndex = iter->first;
                return iIndex;
            }
        }

        throw Exception("Internal error: SamplerChannel index not found");
    }

    MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
        MidiInputPort* pMidiInputPort = NULL;
        MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
        if (pMidiInputDevice)
            pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
        return pMidiInputPort;
    }


    // ******************************************************************
    // * Sampler

    Sampler::Sampler() {
    }

    Sampler::~Sampler() {
        Reset();
    }

    uint Sampler::SamplerChannels() {
        return mSamplerChannels.size();
    }

    SamplerChannel* Sampler::AddSamplerChannel() {
        // if there's no sampler channel yet
        if (!mSamplerChannels.size()) {
            SamplerChannel* pChannel = new SamplerChannel(this);
            mSamplerChannels[0] = pChannel;
            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1));
            return pChannel;
        }

        // get the highest used sampler channel index
        uint lastIndex = (--(mSamplerChannels.end()))->first;

        // check if we reached the index limit
        if (lastIndex + 1 < lastIndex) {
            // search for an unoccupied sampler channel index starting from 0
            for (uint i = 0; i < lastIndex; i++) {
                if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue;
                // we found an unused index, so insert the new channel there
                SamplerChannel* pChannel = new SamplerChannel(this);
                mSamplerChannels[i] = pChannel;
                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));
                return pChannel;
            }
            throw Exception("Internal error: could not find unoccupied sampler channel index.");
        }

        // we have not reached the index limit so we just add the channel past the highest index
        SamplerChannel* pChannel = new SamplerChannel(this);
        mSamplerChannels[lastIndex + 1] = pChannel;
        LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1));
        return pChannel;
    }

    SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {
        return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL;
    }

    std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() {
        return mSamplerChannels;
    }

    void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {
        SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
        for (; iterChan != mSamplerChannels.end(); iterChan++) {
            if (iterChan->second == pSamplerChannel) {
                mSamplerChannels.erase(iterChan);
                delete pSamplerChannel;
                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));
                return;
            }
        }
    }

    void Sampler::RemoveSamplerChannel(uint uiSamplerChannel) {
        SamplerChannel* pChannel = GetSamplerChannel(uiSamplerChannel);
        if (!pChannel) return;
        RemoveSamplerChannel(pChannel);
    }

    std::vector<String> Sampler::AvailableAudioOutputDrivers() {
        return AudioOutputDeviceFactory::AvailableDrivers();
    }

    std::vector<String> Sampler::AvailableMidiInputDrivers() {
        return MidiInputDeviceFactory::AvailableDrivers();
    }

    std::vector<String> Sampler::AvailableEngineTypes() {
        return EngineFactory::AvailableEngineTypes();
    }

    AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
        // create new device
        AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);

        // add new audio device to the audio device list
        for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
            if (!mAudioOutputDevices[i]) {
                mAudioOutputDevices[i] = pDevice;
                break;
            }
        }

        LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, AudioOutputDevices()));
        return pDevice;
    }

    uint Sampler::AudioOutputDevices() {
        return mAudioOutputDevices.size();
    }

    uint Sampler::MidiInputDevices() {
        return mMidiInputDevices.size();
    }

    std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
        return mAudioOutputDevices;
    }

    std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
        return mMidiInputDevices;
    }

    void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
        AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
        for (; iter != mAudioOutputDevices.end(); iter++) {
            if (iter->second == pDevice) {
                // check if there are still sampler engines connected to this device
                for (uint i = 0; i < SamplerChannels(); i++)
                    if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");

                // disable device
                pDevice->Stop();

                // remove device from the device list
                mAudioOutputDevices.erase(iter);

                // destroy and free device from memory
                delete pDevice;

                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, AudioOutputDevices()));
                break;
            }
        }
    }

    void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
        MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
        for (; iter != mMidiInputDevices.end(); iter++) {
            if (iter->second == pDevice) {
                // check if there are still sampler engines connected to this device
                for (uint i = 0; i < SamplerChannels(); i++)
                    if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");

                // disable device
                pDevice->StopListen();

                // remove device from the device list
                mMidiInputDevices.erase(iter);

                // destroy and free device from memory
                delete pDevice;

                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, MidiInputDevices()));
                break;
            }
        }
    }

    MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
        // create new device
        MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);

        // add new device to the midi device list
        for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
                if (!mMidiInputDevices[i]) {
                        mMidiInputDevices[i] = pDevice;
                        break;
                }
        }

        LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, MidiInputDevices()));
        return pDevice;
    }

    int Sampler::GetVoiceCount() {
        int count = 0;
        std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();

        for(; it != EngineFactory::EngineInstances().end(); it++) {
            count += (*it)->VoiceCount();
        }

        return count;
    }

    void Sampler::Reset() {
        // delete sampler channels
        try {
            while (true) {
                    SamplerChannelMap::iterator iter = mSamplerChannels.begin();
                    if (iter == mSamplerChannels.end()) break;
                    RemoveSamplerChannel(iter->second);
            }
        }
        catch(...) {
            std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
            exit(EXIT_FAILURE);
        }

        // delete midi input devices
        try {
            while (true) {
                    MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
                    if (iter == mMidiInputDevices.end()) break;
                    DestroyMidiInputDevice(iter->second);
            }
        }
        catch(...) {
            std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
            exit(EXIT_FAILURE);
        }

        // delete audio output devices
        try {
            while (true) {
                    AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
                    if (iter == mAudioOutputDevices.end()) break;
                    DestroyAudioOutputDevice(iter->second);
            }
        }
        catch(...) {
            std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
            exit(EXIT_FAILURE);
        }

        // delete MIDI instrument maps
        try {
            MidiInstrumentMapper::RemoveAllMaps();
        }
        catch(...) {
            std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
            exit(EXIT_FAILURE);
        }
    }

} // namespace LinuxSampler
1	schoenebeck	53	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5	schoenebeck	61	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	schoenebeck	1008	* Copyright (C) 2005 - 2007 Christian Schoenebeck *
7	schoenebeck	53	* *
8	schoenebeck	1008	* This library is free software; you can redistribute it and/or modify *
9	schoenebeck	53	* it under the terms of the GNU General Public License as published by *
10			* the Free Software Foundation; either version 2 of the License, or *
11			* (at your option) any later version. *
12			* *
13	schoenebeck	1008	* This library is distributed in the hope that it will be useful, *
14	schoenebeck	53	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16			* GNU General Public License for more details. *
17			* *
18			* You should have received a copy of the GNU General Public License *
19	schoenebeck	1008	* along with this library; if not, write to the Free Software *
20	schoenebeck	53	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21			* MA 02111-1307 USA *
22			***************************************************************************/
23
24	schoenebeck	123	#include <sstream>
25
26	schoenebeck	53	#include "Sampler.h"
27
28	iliev	778	#include "engines/EngineFactory.h"
29	schoenebeck	411	#include "engines/EngineChannelFactory.h"
30	schoenebeck	203	#include "drivers/audio/AudioOutputDeviceFactory.h"
31			#include "drivers/midi/MidiInputDeviceFactory.h"
32	schoenebeck	1008	#include "drivers/midi/MidiInstrumentMapper.h"
33	senkov	359	#include "network/lscpserver.h"
34	schoenebeck	53
35			namespace LinuxSampler {
36
37			// ******************************************************************
38			// * SamplerChannel
39
40			SamplerChannel::SamplerChannel(Sampler* pS) {
41			pSampler = pS;
42	schoenebeck	411	pEngineChannel = NULL;
43	schoenebeck	675	pAudioOutputDevice = NULL;
44	capela	159	pMidiInputDevice = NULL;
45	schoenebeck	675	iMidiPort = 0;
46			midiChannel = midi_chan_all;
47	schoenebeck	53	iIndex = -1;
48			}
49
50			SamplerChannel::~SamplerChannel() {
51	schoenebeck	411	if (pEngineChannel) {
52	persson	840	Engine* engine = pEngineChannel->GetEngine();
53			if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
54
55	schoenebeck	675	MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
56	schoenebeck	411	if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
57	schoenebeck	420	if (pEngineChannel) {
58			if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
59	schoenebeck	660	EngineChannelFactory::Destroy(pEngineChannel);
60	persson	840
61			// reconnect engine if it still exists
62			const std::set<Engine*>& engines = EngineFactory::EngineInstances();
63			if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
64	schoenebeck	420	}
65	schoenebeck	53	}
66			}
67
68	schoenebeck	880	void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
69	schoenebeck	411	dmsg(2,("SamplerChannel: Assigning engine type..."));
70	schoenebeck	53
71	schoenebeck	411	// create new engine channel
72			EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
73	schoenebeck	880	if (!pNewEngineChannel) throw Exception("Unknown engine type");
74	schoenebeck	53
75	schoenebeck	660	//FIXME: hack to allow fast retrieval of engine channel's sampler channel index
76			pNewEngineChannel->iSamplerChannelIndex = Index();
77
78	capela	159	// dereference midi input port.
79	schoenebeck	675	MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
80			// disconnect old engine channel
81	schoenebeck	411	if (pEngineChannel) {
82	persson	840	Engine* engine = pEngineChannel->GetEngine();
83			if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
84
85	schoenebeck	411	if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
86	schoenebeck	412	if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
87	schoenebeck	660	EngineChannelFactory::Destroy(pEngineChannel);
88	persson	840
89			// reconnect engine if it still exists
90			const std::set<Engine*>& engines = EngineFactory::EngineInstances();
91			if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
92	schoenebeck	53	}
93
94	schoenebeck	411	// connect new engine channel
95	schoenebeck	412	if (pAudioOutputDevice) {
96			pNewEngineChannel->Connect(pAudioOutputDevice);
97			pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
98			}
99	persson	846	if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
100	schoenebeck	675	pEngineChannel = pNewEngineChannel;
101
102			// from now on get MIDI device and port from EngineChannel object
103			this->pMidiInputDevice = NULL;
104			this->iMidiPort = 0;
105
106	iliev	730	pEngineChannel->StatusChanged(true);
107
108	schoenebeck	64	dmsg(2,("OK\n"));
109	schoenebeck	53	}
110
111	schoenebeck	123	void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
112	iliev	960	if(pAudioOutputDevice == pDevice) return;
113
114	schoenebeck	53	// disconnect old device
115	persson	840	if (pAudioOutputDevice && pEngineChannel) {
116			Engine* engine = pEngineChannel->GetEngine();
117			pAudioOutputDevice->Disconnect(engine);
118
119			pEngineChannel->DisconnectAudioOutputDevice();
120
121			// reconnect engine if it still exists
122			const std::set<Engine*>& engines = EngineFactory::EngineInstances();
123			if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
124			}
125
126	schoenebeck	53	// connect new device
127			pAudioOutputDevice = pDevice;
128	schoenebeck	412	if (pEngineChannel) {
129			pEngineChannel->Connect(pAudioOutputDevice);
130			pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
131			}
132	schoenebeck	53	}
133
134	capela	159	void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
135	schoenebeck	675	SetMidiInput(pDevice, 0, GetMidiInputChannel());
136	capela	159	}
137	schoenebeck	203
138	capela	159	void SamplerChannel::SetMidiInputPort(int MidiPort) {
139	schoenebeck	675	SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
140	capela	159	}
141	schoenebeck	203
142	schoenebeck	675	void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
143			SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
144	capela	159	}
145	schoenebeck	203
146	schoenebeck	675	void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
147	schoenebeck	880	if (!pDevice) throw Exception("No MIDI input device assigned.");
148	schoenebeck	675
149			// get old and new midi input port
150			MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
151			MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
152
153	capela	159	// disconnect old device port
154	schoenebeck	675	if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
155			// remember new device, port and channel if not engine channel yet created
156			if (!pEngineChannel) {
157			this->pMidiInputDevice = pDevice;
158			this->iMidiPort = iMidiPort;
159			this->midiChannel = MidiChannel;
160			}
161
162	capela	159	// connect new device port
163	schoenebeck	675	if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
164	capela	159	// Ooops.
165	schoenebeck	675	if (pNewMidiInputPort == NULL)
166	schoenebeck	880	throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
167	schoenebeck	53	}
168
169	schoenebeck	411	EngineChannel* SamplerChannel::GetEngineChannel() {
170			return pEngineChannel;
171	schoenebeck	53	}
172
173	schoenebeck	675	midi_chan_t SamplerChannel::GetMidiInputChannel() {
174			if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
175	capela	159	return this->midiChannel;
176	schoenebeck	53	}
177
178	capela	159	int SamplerChannel::GetMidiInputPort() {
179	schoenebeck	675	MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
180			if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
181			return iMidiPort;
182	capela	159	}
183
184	schoenebeck	53	AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
185			return pAudioOutputDevice;
186			}
187
188	senkov	155	MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
189	schoenebeck	675	if (pEngineChannel)
190			pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
191	capela	159	return pMidiInputDevice;
192	senkov	155	}
193
194	schoenebeck	53	uint SamplerChannel::Index() {
195			if (iIndex >= 0) return iIndex;
196
197	schoenebeck	209	Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin();
198			for (; iter != pSampler->mSamplerChannels.end(); iter++) {
199			if (iter->second == this) {
200			iIndex = iter->first;
201			return iIndex;
202	schoenebeck	53	}
203			}
204
205	schoenebeck	880	throw Exception("Internal error: SamplerChannel index not found");
206	schoenebeck	53	}
207
208	schoenebeck	675	MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
209	schoenebeck	221	MidiInputPort* pMidiInputPort = NULL;
210	schoenebeck	675	MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
211	capela	159	if (pMidiInputDevice)
212	schoenebeck	221	pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
213	capela	159	return pMidiInputPort;
214			}
215	schoenebeck	53
216	schoenebeck	212
217
218	schoenebeck	53	// ******************************************************************
219			// * Sampler
220
221			Sampler::Sampler() {
222			}
223
224			Sampler::~Sampler() {
225	schoenebeck	212	Reset();
226	schoenebeck	53	}
227
228			uint Sampler::SamplerChannels() {
229	schoenebeck	209	return mSamplerChannels.size();
230	schoenebeck	53	}
231
232			SamplerChannel* Sampler::AddSamplerChannel() {
233	schoenebeck	209	// if there's no sampler channel yet
234			if (!mSamplerChannels.size()) {
235			SamplerChannel* pChannel = new SamplerChannel(this);
236			mSamplerChannels[0] = pChannel;
237	schoenebeck	556	LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1));
238	schoenebeck	209	return pChannel;
239			}
240
241			// get the highest used sampler channel index
242			uint lastIndex = (--(mSamplerChannels.end()))->first;
243
244			// check if we reached the index limit
245			if (lastIndex + 1 < lastIndex) {
246			// search for an unoccupied sampler channel index starting from 0
247			for (uint i = 0; i < lastIndex; i++) {
248			if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue;
249			// we found an unused index, so insert the new channel there
250			SamplerChannel* pChannel = new SamplerChannel(this);
251			mSamplerChannels[i] = pChannel;
252	schoenebeck	556	LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));
253	schoenebeck	209	return pChannel;
254			}
255	schoenebeck	880	throw Exception("Internal error: could not find unoccupied sampler channel index.");
256	schoenebeck	209	}
257
258			// we have not reached the index limit so we just add the channel past the highest index
259	schoenebeck	53	SamplerChannel* pChannel = new SamplerChannel(this);
260	schoenebeck	209	mSamplerChannels[lastIndex + 1] = pChannel;
261	schoenebeck	556	LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1));
262	schoenebeck	53	return pChannel;
263			}
264
265			SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {
266	schoenebeck	209	return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL;
267	schoenebeck	53	}
268
269	schoenebeck	209	std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() {
270			return mSamplerChannels;
271			}
272
273	schoenebeck	53	void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {
274	schoenebeck	209	SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
275			for (; iterChan != mSamplerChannels.end(); iterChan++) {
276			if (iterChan->second == pSamplerChannel) {
277			mSamplerChannels.erase(iterChan);
278	schoenebeck	53	delete pSamplerChannel;
279	schoenebeck	556	LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));
280	schoenebeck	53	return;
281			}
282			}
283			}
284
285			void Sampler::RemoveSamplerChannel(uint uiSamplerChannel) {
286			SamplerChannel* pChannel = GetSamplerChannel(uiSamplerChannel);
287			if (!pChannel) return;
288			RemoveSamplerChannel(pChannel);
289			}
290
291	schoenebeck	123	std::vector<String> Sampler::AvailableAudioOutputDrivers() {
292			return AudioOutputDeviceFactory::AvailableDrivers();
293			}
294	schoenebeck	53
295	schoenebeck	900	std::vector<String> Sampler::AvailableMidiInputDrivers() {
296			return MidiInputDeviceFactory::AvailableDrivers();
297			}
298
299			std::vector<String> Sampler::AvailableEngineTypes() {
300			return EngineFactory::AvailableEngineTypes();
301			}
302
303	schoenebeck	880	AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
304	schoenebeck	53	// create new device
305	schoenebeck	123	AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
306	schoenebeck	53
307	schoenebeck	64	// add new audio device to the audio device list
308	schoenebeck	123	for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
309			if (!mAudioOutputDevices[i]) {
310			mAudioOutputDevices[i] = pDevice;
311			break;
312			}
313			}
314	schoenebeck	64
315	iliev	981	LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, AudioOutputDevices()));
316	schoenebeck	53	return pDevice;
317			}
318
319	schoenebeck	123	uint Sampler::AudioOutputDevices() {
320			return mAudioOutputDevices.size();
321	schoenebeck	53	}
322
323	senkov	155	uint Sampler::MidiInputDevices() {
324			return mMidiInputDevices.size();
325			}
326
327	schoenebeck	123	std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
328			return mAudioOutputDevices;
329			}
330
331	senkov	155	std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
332			return mMidiInputDevices;
333			}
334
335	schoenebeck	880	void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
336	schoenebeck	123	AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
337			for (; iter != mAudioOutputDevices.end(); iter++) {
338			if (iter->second == pDevice) {
339			// check if there are still sampler engines connected to this device
340			for (uint i = 0; i < SamplerChannels(); i++)
341	schoenebeck	880	if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");
342	schoenebeck	123
343			// disable device
344			pDevice->Stop();
345
346	persson	837	// remove device from the device list
347			mAudioOutputDevices.erase(iter);
348
349	schoenebeck	123	// destroy and free device from memory
350			delete pDevice;
351	persson	837
352	iliev	981	LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_audio_device_count, AudioOutputDevices()));
353	persson	837	break;
354	schoenebeck	123	}
355			}
356			}
357
358	schoenebeck	880	void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
359	senkov	155	MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
360			for (; iter != mMidiInputDevices.end(); iter++) {
361			if (iter->second == pDevice) {
362			// check if there are still sampler engines connected to this device
363			for (uint i = 0; i < SamplerChannels(); i++)
364	schoenebeck	880	if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");
365	schoenebeck	53
366	senkov	155	// disable device
367			pDevice->StopListen();
368
369	persson	837	// remove device from the device list
370			mMidiInputDevices.erase(iter);
371
372	senkov	155	// destroy and free device from memory
373			delete pDevice;
374	persson	837
375	iliev	981	LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, MidiInputDevices()));
376	persson	837	break;
377	senkov	155	}
378	schoenebeck	53	}
379	senkov	155	}
380	schoenebeck	53
381	schoenebeck	880	MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
382	senkov	155	// create new device
383	schoenebeck	551	MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
384	senkov	155
385			// add new device to the midi device list
386			for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
387			if (!mMidiInputDevices[i]) {
388			mMidiInputDevices[i] = pDevice;
389			break;
390			}
391			}
392	schoenebeck	64
393	iliev	981	LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_midi_device_count, MidiInputDevices()));
394	schoenebeck	53	return pDevice;
395			}
396
397	iliev	778	int Sampler::GetVoiceCount() {
398			int count = 0;
399			std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
400
401			for(; it != EngineFactory::EngineInstances().end(); it++) {
402			count += (*it)->VoiceCount();
403			}
404
405			return count;
406			}
407
408	schoenebeck	212	void Sampler::Reset() {
409			// delete sampler channels
410			try {
411	senkov	329	while (true) {
412			SamplerChannelMap::iterator iter = mSamplerChannels.begin();
413			if (iter == mSamplerChannels.end()) break;
414			RemoveSamplerChannel(iter->second);
415	schoenebeck	212	}
416			}
417			catch(...) {
418			std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
419			exit(EXIT_FAILURE);
420			}
421
422			// delete midi input devices
423			try {
424	senkov	329	while (true) {
425			MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
426			if (iter == mMidiInputDevices.end()) break;
427			DestroyMidiInputDevice(iter->second);
428	schoenebeck	212	}
429			}
430			catch(...) {
431			std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
432			exit(EXIT_FAILURE);
433			}
434
435			// delete audio output devices
436			try {
437	senkov	329	while (true) {
438			AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
439			if (iter == mAudioOutputDevices.end()) break;
440			DestroyAudioOutputDevice(iter->second);
441	schoenebeck	212	}
442			}
443			catch(...) {
444			std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
445			exit(EXIT_FAILURE);
446			}
447	schoenebeck	1008
448			// delete MIDI instrument maps
449			try {
450			MidiInstrumentMapper::RemoveAllMaps();
451			}
452			catch(...) {
453			std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI instrument maps, exiting.\n" << std::flush;
454			exit(EXIT_FAILURE);
455			}
456	schoenebeck	212	}
457
458	schoenebeck	53	} // namespace LinuxSampler