/[svn]/linuxsampler/trunk/src/drivers/audio/AudioOutputDeviceJack.cpp
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revision 221 by schoenebeck, Fri Aug 20 17:25:19 2004 UTC revision 374 by schoenebeck, Sat Feb 12 00:36:08 2005 UTC
# Line 23  Line 23 
23  #include "AudioOutputDeviceJack.h"  #include "AudioOutputDeviceJack.h"
24  #include "AudioOutputDeviceFactory.h"  #include "AudioOutputDeviceFactory.h"
25    
26    #include <errno.h>
27    
28  #if HAVE_JACK  #if HAVE_JACK
29    
30  namespace LinuxSampler {  namespace LinuxSampler {
31    
32      REGISTER_AUDIO_OUTPUT_DRIVER(AudioOutputDeviceJack);      /// number of currently existing JACK audio output devices in LinuxSampler
33        static int existingJackDevices = 0;
34    
35    // *************** AudioChannelJack::ParameterName ***************
36    // *
37    
38        AudioOutputDeviceJack::AudioChannelJack::ParameterName::ParameterName(AudioChannelJack* pChannel) : AudioChannel::ParameterName(ToString(pChannel->ChannelNr)) {
39            this->pChannel = pChannel;
40        }
41    
42        void AudioOutputDeviceJack::AudioChannelJack::ParameterName::OnSetValue(String s) {
43            if (jack_port_set_name(pChannel->hJackPort, s.c_str())) throw AudioOutputException("Failed to rename JACK port");
44        }
45    
46    
47    
48    // *************** AudioChannelJack::ParameterJackBindings ***************
49    // *
50    
51        AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::ParameterJackBindings(AudioChannelJack* pChannel) : DeviceRuntimeParameterStrings(std::vector<String>()) {
52            this->pChannel = pChannel;
53        }
54    
55        String AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::Description() {
56            return "Bindings to other JACK clients";
57        }
58    
59        bool AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::Fix() {
60            return false;
61        }
62    
63        std::vector<String> AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::PossibilitiesAsString() {
64            const char** pPortNames = jack_get_ports(pChannel->pDevice->hJackClient, NULL, NULL, JackPortIsInput);
65            if (!pPortNames) return std::vector<String>();
66            std::vector<String> result;
67            for (int i = 0; pPortNames[i]; i++) result.push_back(pPortNames[i]);
68            //free(pPortNames); FIXME: pPortNames should be freed here
69            return result;
70        }
71    
72        void AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::OnSetValue(std::vector<String> vS) {
73            // TODO: we should remove all existing bindings before we connect new ones here
74            String src_name = "LinuxSampler:" + ((DeviceRuntimeParameterString*)pChannel->Parameters["NAME"])->ValueAsString();
75            for (int i = 0; i < vS.size(); i++) {
76                String dst_name = vS[i];
77                int res = jack_connect(pChannel->pDevice->hJackClient, src_name.c_str(), dst_name.c_str());
78                if (res == EEXIST) throw AudioOutputException("Jack: Connection to port '" + dst_name + "' already established");
79                else if (res)      throw AudioOutputException("Jack: Cannot connect port '" + src_name + "' to port '" + dst_name + "'");
80            }
81        }
82    
83        String AudioOutputDeviceJack::AudioChannelJack::ParameterJackBindings::Name() {
84            return "JACK_BINDINGS";
85        }
86    
87    
88    
89    // *************** AudioChannelJack ***************
90    // *
91    
92        AudioOutputDeviceJack::AudioChannelJack::AudioChannelJack(uint ChannelNr, AudioOutputDeviceJack* pDevice) throw (AudioOutputException) : AudioChannel(ChannelNr, CreateJackPort(ChannelNr, pDevice), pDevice->uiMaxSamplesPerCycle) {
93            this->pDevice   = pDevice;
94            this->ChannelNr = ChannelNr;
95            Parameters["NAME"]          = new ParameterName(this);
96            Parameters["JACK_BINDINGS"] = new ParameterJackBindings(this);
97        }
98    
99        AudioOutputDeviceJack::AudioChannelJack::~AudioChannelJack() {
100            //TODO: delete JACK port
101        }
102    
103        float* AudioOutputDeviceJack::AudioChannelJack::CreateJackPort(uint ChannelNr, AudioOutputDeviceJack* pDevice) throw (AudioOutputException) {
104            String port_id = ToString(ChannelNr);
105            hJackPort = jack_port_register(pDevice->hJackClient, port_id.c_str(), JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
106            if (!hJackPort) throw AudioOutputException("Jack: Cannot register Jack output port.");
107            return (float*) jack_port_get_buffer(hJackPort, pDevice->uiMaxSamplesPerCycle);
108        }
109    
110      /* Common parameters for now they'll have to be registered here. */  
111      REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterActive);  
112      REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterSampleRate);  // *************** AudioOutputDeviceJack::ParameterName ***************
113      REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterChannels);  // *
114    
115        AudioOutputDeviceJack::ParameterName::ParameterName() : DeviceCreationParameterString() {
116            InitWithDefault(); // use default name
117        }
118    
119        AudioOutputDeviceJack::ParameterName::ParameterName(String s) throw (LinuxSamplerException) : DeviceCreationParameterString(s) {
120        }
121    
122        String AudioOutputDeviceJack::ParameterName::Description() {
123            return "Arbitrary JACK client name";
124        }
125    
126        bool AudioOutputDeviceJack::ParameterName::Fix() {
127            return true;
128        }
129    
130        bool AudioOutputDeviceJack::ParameterName::Mandatory() {
131            return false;
132        }
133    
134        std::map<String,DeviceCreationParameter*> AudioOutputDeviceJack::ParameterName::DependsAsParameters() {
135            return std::map<String,DeviceCreationParameter*>(); // no dependencies
136        }
137    
138        std::vector<String> AudioOutputDeviceJack::ParameterName::PossibilitiesAsString(std::map<String,String> Parameters) {
139            return std::vector<String>();
140        }
141    
142        optional<String> AudioOutputDeviceJack::ParameterName::DefaultAsString(std::map<String,String> Parameters) {
143            return (existingJackDevices) ? "LinuxSampler" + ToString(existingJackDevices) : "LinuxSampler";
144        }
145    
146        void AudioOutputDeviceJack::ParameterName::OnSetValue(String s) throw (LinuxSamplerException) {
147            // not possible, as parameter is fix
148        }
149    
150        String AudioOutputDeviceJack::ParameterName::Name() {
151            return "NAME";
152        }
153    
154    
155    
156    // *************** AudioOutputDeviceJack ***************
157    // *
158    
159      /**      /**
160       * Open and initialize connection to the JACK system.       * Open and initialize connection to the JACK system.
# Line 41  namespace LinuxSampler { Line 163  namespace LinuxSampler {
163       * @throws AudioOutputException  on error       * @throws AudioOutputException  on error
164       * @see AcquireChannels()       * @see AcquireChannels()
165       */       */
166      AudioOutputDeviceJack::AudioOutputDeviceJack(std::map<String,DeviceCreationParameter*> Parameters) : AudioOutputDevice(std::map<String,DeviceCreationParameter*>()) {      AudioOutputDeviceJack::AudioOutputDeviceJack(std::map<String,DeviceCreationParameter*> Parameters) : AudioOutputDevice(Parameters) {
167          if ((hJackClient = jack_client_new("LinuxSampler")) == 0)          if (((DeviceCreationParameterString*)Parameters["NAME"])->ValueAsString().size() >= jack_client_name_size())
168                throw LinuxSamplerException("JACK client name too long");
169    
170            if ((hJackClient = jack_client_new(((DeviceCreationParameterString*)Parameters["NAME"])->ValueAsString().c_str())) == 0)
171              throw AudioOutputException("Seems Jack server not running.");              throw AudioOutputException("Seems Jack server not running.");
172    
173            existingJackDevices++;
174    
175          jack_set_process_callback(hJackClient, __libjack_process_callback, this);          jack_set_process_callback(hJackClient, __libjack_process_callback, this);
176          jack_on_shutdown(hJackClient, __libjack_shutdown_callback, this);          jack_on_shutdown(hJackClient, __libjack_shutdown_callback, this);
177          if (jack_activate(hJackClient))          if (jack_activate(hJackClient))
# Line 52  namespace LinuxSampler { Line 179  namespace LinuxSampler {
179    
180          uiMaxSamplesPerCycle = jack_get_buffer_size(hJackClient);          uiMaxSamplesPerCycle = jack_get_buffer_size(hJackClient);
181    
182  #if 0          // create audio channels
183          // create amount of audio channels and jack output ports we need for autoconnect          AcquireChannels(((DeviceCreationParameterInt*)Parameters["CHANNELS"])->ValueAsInt());
184          for (uint p = 0; p < AutoConnectPorts; p++) {  
185              // create jack output port          // finally activate device if desired
186              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  
187      }      }
188    
189      AudioOutputDeviceJack::~AudioOutputDeviceJack() {      AudioOutputDeviceJack::~AudioOutputDeviceJack() {
         // destroy all audio channels  
         for (int c = 0; c < Channels.size(); c++) delete Channels[c];  
190          // destroy jack client          // destroy jack client
191          jack_client_close(hJackClient);          jack_client_close(hJackClient);
192            existingJackDevices--;
193      }      }
194    
195      /**      /**
# Line 110  namespace LinuxSampler { Line 219  namespace LinuxSampler {
219          csIsPlaying.PushAndUnlock(false);          csIsPlaying.PushAndUnlock(false);
220      }      }
221    
222      void AudioOutputDeviceJack::AcquireChannels(uint uiChannels) {      AudioChannel* AudioOutputDeviceJack::CreateChannel(uint ChannelNr) {
223          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()));  
             }  
         }  
224      }      }
225    
226      uint AudioOutputDeviceJack::MaxSamplesPerCycle() {      uint AudioOutputDeviceJack::MaxSamplesPerCycle() {
# Line 149  namespace LinuxSampler { Line 244  namespace LinuxSampler {
244      }      }
245    
246      String AudioOutputDeviceJack::Version() {      String AudioOutputDeviceJack::Version() {
247         String s = "$Revision: 1.10 $";         String s = "$Revision: 1.15 $";
248         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
249      }      }
250    
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