/[svn]/linuxsampler/trunk/src/drivers/audio/AudioOutputDeviceJack.cpp
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revision 200 by schoenebeck, Tue Jul 13 22:04:16 2004 UTC revision 497 by persson, Sun Apr 10 11:55:44 2005 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005 Christian Schoenebeck                              *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 23  Line 24 
24  #include "AudioOutputDeviceJack.h"  #include "AudioOutputDeviceJack.h"
25  #include "AudioOutputDeviceFactory.h"  #include "AudioOutputDeviceFactory.h"
26    
27    #include <errno.h>
28    
29  #if HAVE_JACK  #if HAVE_JACK
30    
31    #ifndef HAVE_JACK_CLIENT_NAME_SIZE
32    #define jack_client_name_size() 33
33    #endif
34    
35  namespace LinuxSampler {  namespace LinuxSampler {
36    
37      REGISTER_AUDIO_OUTPUT_DRIVER(AudioOutputDeviceJack);      /// number of currently existing JACK audio output devices in LinuxSampler
38        static int existingJackDevices = 0;
39    
40    // *************** AudioChannelJack::ParameterName ***************
41    // *
42    
43        AudioOutputDeviceJack::AudioChannelJack::ParameterName::ParameterName(AudioChannelJack* pChannel) : AudioChannel::ParameterName(ToString(pChannel->ChannelNr)) {
44            this->pChannel = pChannel;
45        }
46    
47        void AudioOutputDeviceJack::AudioChannelJack::ParameterName::OnSetValue(String s) {
48            if (jack_port_set_name(pChannel->hJackPort, s.c_str())) throw AudioOutputException("Failed to rename JACK port");
49        }
50    
51    
52    
53    // *************** AudioChannelJack::ParameterJackBindings ***************
54    // *
55    
56        AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::ParameterJackBindings(AudioChannelJack* pChannel) : DeviceRuntimeParameterStrings(std::vector<String>()) {
57            this->pChannel = pChannel;
58        }
59    
60        String AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::Description() {
61            return "Bindings to other JACK clients";
62        }
63    
64        bool AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::Fix() {
65            return false;
66        }
67    
68      /* Common parameters for now they'll have to be registered here. */      std::vector<String> AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::PossibilitiesAsString() {
69      REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterActive);          const char** pPortNames = jack_get_ports(pChannel->pDevice->hJackClient, NULL, NULL, JackPortIsInput);
70      REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterSampleRate);          if (!pPortNames) return std::vector<String>();
71      REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterChannels);          std::vector<String> result;
72            for (int i = 0; pPortNames[i]; i++) result.push_back(pPortNames[i]);
73            //free(pPortNames); FIXME: pPortNames should be freed here
74            return result;
75        }
76    
77        void AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::OnSetValue(std::vector<String> vS) {
78            String src_name = ((DeviceCreationParameterString*)pChannel->pDevice->Parameters["NAME"])->ValueAsString() + ":" +
79                              ((DeviceRuntimeParameterString*)pChannel->Parameters["NAME"])->ValueAsString();
80            // disconnect all current bindings first
81            for (int i = 0; i < Bindings.size(); i++) {
82                String dst_name = Bindings[i];
83                int res = jack_disconnect(pChannel->pDevice->hJackClient, src_name.c_str(), dst_name.c_str());
84            }
85            // connect new bindings
86            for (int i = 0; i < vS.size(); i++) {
87                String dst_name = vS[i];
88                int res = jack_connect(pChannel->pDevice->hJackClient, src_name.c_str(), dst_name.c_str());
89                if (res == EEXIST) throw AudioOutputException("Jack: Connection to port '" + dst_name + "' already established");
90                else if (res)      throw AudioOutputException("Jack: Cannot connect port '" + src_name + "' to port '" + dst_name + "'");
91            }
92            // remember bindings
93            Bindings = vS;
94        }
95    
96        String AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::Name() {
97            return "JACK_BINDINGS";
98        }
99    
100    
101    
102    // *************** AudioChannelJack ***************
103    // *
104    
105        AudioOutputDeviceJack::AudioChannelJack::AudioChannelJack(uint ChannelNr, AudioOutputDeviceJack* pDevice) throw (AudioOutputException) : AudioChannel(ChannelNr, CreateJackPort(ChannelNr, pDevice), pDevice->uiMaxSamplesPerCycle) {
106            this->pDevice   = pDevice;
107            this->ChannelNr = ChannelNr;
108            Parameters["NAME"]          = new ParameterName(this);
109            Parameters["JACK_BINDINGS"] = new ParameterJackBindings(this);
110        }
111    
112        AudioOutputDeviceJack::AudioChannelJack::~AudioChannelJack() {
113            //TODO: delete JACK port
114        }
115    
116        float* AudioOutputDeviceJack::AudioChannelJack::CreateJackPort(uint ChannelNr, AudioOutputDeviceJack* pDevice) throw (AudioOutputException) {
117            String port_id = ToString(ChannelNr);
118            hJackPort = jack_port_register(pDevice->hJackClient, port_id.c_str(), JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
119            if (!hJackPort) throw AudioOutputException("Jack: Cannot register Jack output port.");
120            return (float*) jack_port_get_buffer(hJackPort, pDevice->uiMaxSamplesPerCycle);
121        }
122    
123    
124    
125    // *************** AudioOutputDeviceJack::ParameterName ***************
126    // *
127    
128        AudioOutputDeviceJack::ParameterName::ParameterName() : DeviceCreationParameterString() {
129            InitWithDefault(); // use default name
130        }
131    
132        AudioOutputDeviceJack::ParameterName::ParameterName(String s) throw (LinuxSamplerException) : DeviceCreationParameterString(s) {
133        }
134    
135        String AudioOutputDeviceJack::ParameterName::Description() {
136            return "Arbitrary JACK client name";
137        }
138    
139        bool AudioOutputDeviceJack::ParameterName::Fix() {
140            return true;
141        }
142    
143        bool AudioOutputDeviceJack::ParameterName::Mandatory() {
144            return false;
145        }
146    
147        std::map<String,DeviceCreationParameter*> AudioOutputDeviceJack::ParameterName::DependsAsParameters() {
148            return std::map<String,DeviceCreationParameter*>(); // no dependencies
149        }
150    
151        std::vector<String> AudioOutputDeviceJack::ParameterName::PossibilitiesAsString(std::map<String,String> Parameters) {
152            return std::vector<String>();
153        }
154    
155        optional<String> AudioOutputDeviceJack::ParameterName::DefaultAsString(std::map<String,String> Parameters) {
156            return (existingJackDevices) ? "LinuxSampler" + ToString(existingJackDevices) : "LinuxSampler";
157        }
158    
159        void AudioOutputDeviceJack::ParameterName::OnSetValue(String s) throw (LinuxSamplerException) {
160            // not possible, as parameter is fix
161        }
162    
163        String AudioOutputDeviceJack::ParameterName::Name() {
164            return "NAME";
165        }
166    
167    
168    
169    // *************** AudioOutputDeviceJack ***************
170    // *
171    
172      /**      /**
173       * Open and initialize connection to the JACK system.       * Open and initialize connection to the JACK system.
# Line 41  namespace LinuxSampler { Line 176  namespace LinuxSampler {
176       * @throws AudioOutputException  on error       * @throws AudioOutputException  on error
177       * @see AcquireChannels()       * @see AcquireChannels()
178       */       */
179      AudioOutputDeviceJack::AudioOutputDeviceJack(std::map<String,DeviceCreationParameter*> Parameters) : AudioOutputDevice(std::map<String,DeviceCreationParameter*>()) {      AudioOutputDeviceJack::AudioOutputDeviceJack(std::map<String,DeviceCreationParameter*> Parameters) : AudioOutputDevice(Parameters) {
180          if ((hJackClient = jack_client_new("LinuxSampler")) == 0)          if (((DeviceCreationParameterString*)Parameters["NAME"])->ValueAsString().size() >= jack_client_name_size())
181                throw LinuxSamplerException("JACK client name too long");
182    
183            if ((hJackClient = jack_client_new(((DeviceCreationParameterString*)Parameters["NAME"])->ValueAsString().c_str())) == 0)
184              throw AudioOutputException("Seems Jack server not running.");              throw AudioOutputException("Seems Jack server not running.");
185    
186            existingJackDevices++;
187    
188          jack_set_process_callback(hJackClient, __libjack_process_callback, this);          jack_set_process_callback(hJackClient, __libjack_process_callback, this);
189          jack_on_shutdown(hJackClient, __libjack_shutdown_callback, this);          jack_on_shutdown(hJackClient, __libjack_shutdown_callback, this);
190          if (jack_activate(hJackClient))          if (jack_activate(hJackClient))
# Line 52  namespace LinuxSampler { Line 192  namespace LinuxSampler {
192    
193          uiMaxSamplesPerCycle = jack_get_buffer_size(hJackClient);          uiMaxSamplesPerCycle = jack_get_buffer_size(hJackClient);
194    
195  #if 0          // create audio channels
196          // create amount of audio channels and jack output ports we need for autoconnect          AcquireChannels(((DeviceCreationParameterInt*)Parameters["CHANNELS"])->ValueAsInt());
197          for (uint p = 0; p < AutoConnectPorts; p++) {  
198              // create jack output port          // finally activate device if desired
199              std::stringstream portid; portid << "LinuxSampler:" << p;          if (((DeviceCreationParameterBool*)Parameters["ACTIVE"])->ValueAsBool()) Play();
             jack_port_t* newport;  
             if (newport = jack_port_register(hJackClient, portid.str().c_str(), JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0)) {  
                 hJackPorts.push_back(newport);  
             }  
             else throw AudioOutputException("Jack: Cannot register Jack output port.");  
   
             // create LS audio channel  
             std::stringstream chanid; chanid << "Jack:" << p;  
             Channels.push_back(new AudioChannel((float*) jack_port_get_buffer(newport, uiMaxSamplesPerCycle), uiMaxSamplesPerCycle, chanid.str()));  
   
             // autoconnect port  
             if (jack_connect(hJackClient, portid.str().c_str(), AutoConnectPortIDs[p].c_str())) {  
                 std::stringstream err; err << "Jack: Cannot auto connect port " << p;  
                 throw AudioOutputException(err.str());  
             }  
         }  
 #endif  
200      }      }
201    
202      AudioOutputDeviceJack::~AudioOutputDeviceJack() {      AudioOutputDeviceJack::~AudioOutputDeviceJack() {
         // destroy all audio channels  
         for (int c = 0; c < Channels.size(); c++) delete Channels[c];  
203          // destroy jack client          // destroy jack client
204          jack_client_close(hJackClient);          jack_client_close(hJackClient);
205            existingJackDevices--;
206      }      }
207    
208      /**      /**
# Line 103  namespace LinuxSampler { Line 225  namespace LinuxSampler {
225      }      }
226    
227      bool AudioOutputDeviceJack::IsPlaying() {      bool AudioOutputDeviceJack::IsPlaying() {
228          csIsPlaying.GetUnsafe();          return csIsPlaying.GetUnsafe();
229      }      }
230    
231      void AudioOutputDeviceJack::Stop() {      void AudioOutputDeviceJack::Stop() {
232          csIsPlaying.PushAndUnlock(false);          csIsPlaying.PushAndUnlock(false);
233      }      }
234    
235      void AudioOutputDeviceJack::AcquireChannels(uint uiChannels) {      AudioChannel* AudioOutputDeviceJack::CreateChannel(uint ChannelNr) {
236          if (uiChannels > this->Channels.size()) {          return new AudioChannelJack(ChannelNr, this);
             for (int c = this->Channels.size(); c < uiChannels; c++) {  
                 // create new jack output port  
                 std::stringstream portid; portid << "LinuxSampler:" << c;  
                 jack_port_t* newport;  
                 if (newport = jack_port_register(hJackClient, portid.str().c_str(), JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0)) {  
                     hJackPorts.push_back(newport);  
                 }  
                 else throw AudioOutputException("Jack: Cannot register Jack output port.");  
   
                 // create LS audio channel  
                 std::stringstream chanid; chanid << "Jack:" << c;  
                 Channels.push_back(new AudioChannel((float*) jack_port_get_buffer(newport, uiMaxSamplesPerCycle), uiMaxSamplesPerCycle, chanid.str()));  
             }  
         }  
237      }      }
238    
239      uint AudioOutputDeviceJack::MaxSamplesPerCycle() {      uint AudioOutputDeviceJack::MaxSamplesPerCycle() {
# Line 137  namespace LinuxSampler { Line 245  namespace LinuxSampler {
245      }      }
246    
247      String AudioOutputDeviceJack::Name() {      String AudioOutputDeviceJack::Name() {
248          return "Jack";          return "JACK";
249      }      }
250    
251      String AudioOutputDeviceJack::Driver() {      String AudioOutputDeviceJack::Driver() {
# Line 149  namespace LinuxSampler { Line 257  namespace LinuxSampler {
257      }      }
258    
259      String AudioOutputDeviceJack::Version() {      String AudioOutputDeviceJack::Version() {
260         String s = "$Revision: 1.9 $";         String s = "$Revision: 1.19 $";
261         return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword         return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
262      }      }
263    
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