Definition at line 70 of file JackClient.cpp.
References client, error(), inBufPtr, inFrame, input_port, iPhase, jack_shutdown(), outBufPtr, outFrame, output_port, srate_callback(), xx_global_process_xx(), xx_nChans_xx, and xx_nFrames_xx.
00070 :Stk () 00071 { 00072 xx_nChans_xx = this->nChans = nChans; 00073 xx_nFrames_xx = nFrames; 00074 inFrame = new double[nChans]; 00075 outFrame = new double[nChans]; 00076 input_port = new jack_port_t *[nChans]; 00077 output_port = new jack_port_t *[nChans]; 00078 inBufPtr = new jack_default_audio_sample_t *[nChans]; 00079 outBufPtr = new jack_default_audio_sample_t *[nChans]; 00080 00081 iPhase = new double[nChans]; // sample frame of output channels 00082 for (int i = 0; i < nChans; i++) 00083 iPhase[i] = 0.0; 00084 00085 /* tell the JACK server to call error() whenever it 00086 * experiences an error. Notice that this callback is 00087 * global to this process, not specific to each client. 00088 * 00089 * This is set here so that it can catch errors in the 00090 * connection process 00091 */ 00092 jack_set_error_function (error); 00093 00094 /* try to become a client of the JACK server */ 00095 00096 if ((client = jack_client_new (name)) == 0) 00097 { 00098 printf ("jack server not running?\n"); 00099 // return 1; 00100 } 00101 00102 /* tell the JACK server to call `process()' whenever 00103 * there is work to be done. 00104 */ 00105 00106 jack_set_process_callback (client, xx_global_process_xx, 0); 00107 00108 /* tell the JACK server to call `srate()' whenever 00109 * the sample rate of the system changes. 00110 */ 00111 00112 00113 jack_set_sample_rate_callback (client, srate_callback, 0); 00114 00115 /* tell the JACK server to call `jack_shutdown()' if 00116 * it ever shuts down, either entirely, or if it 00117 * just decides to stop calling us. 00118 */ 00119 00120 jack_on_shutdown (client, jack_shutdown, 0); 00121 00122 /* display the current sample rate. once the client is activated 00123 * (see below), you should rely on your own sample rate 00124 * callback (see above) for this value. 00125 */ 00126 00127 printf ("engine sample rate: %u\n", jack_get_sample_rate (client)); 00128 00129 /* create two ports */ 00130 for (int i = 0; i < nChans; i++) 00131 { 00132 QString iName, oName; 00133 QTextOStream (&iName) << "input" << i; 00134 QTextOStream (&oName) << "output" << i; 00135 00136 input_port[i] = 00137 jack_port_register (client, iName, 00138 JACK_DEFAULT_AUDIO_TYPE, 00139 JackPortIsInput, 0); 00140 output_port[i] = 00141 jack_port_register (client, oName, 00142 JACK_DEFAULT_AUDIO_TYPE, 00143 JackPortIsOutput, 0); 00144 } 00145 }
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