39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
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#include "jacksendreturn.hxx"
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#include "jack.hxx"
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extern Jack* jack;
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JackSendReturn::JackSendReturn(int trackid, AudioProcessor *prev, jack_client_t *client)
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:m_trackid(trackid), m_previousProcessor(prev)
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{
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char name[50];
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sprintf(name, "Send_track_%d\0",trackid);
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m_sendport=jack_port_register(client,name,JACK_DEFAULT_AUDIO_TYPE,JackPortIsOutput,0);
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sprintf(name, "Return_track_%d\0",trackid);
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m_returnport=jack_port_register(client,name,JACK_DEFAULT_AUDIO_TYPE,JackPortIsInput,0);
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}
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void JackSendReturn::process(unsigned int nframes, Buffers *buffers)
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{
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//Reset send buffer
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memset(buffers->audio[Buffers::SEND_TRACK_0+m_trackid],0,nframes*sizeof(float));
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//Process previous AudioProcessor
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m_previousProcessor->process(nframes,buffers);
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float* send=(float*)jack_port_get_buffer(m_sendport,(jack_nframes_t)nframes);
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float* ret=(float*)jack_port_get_buffer(m_returnport,(jack_nframes_t)nframes);
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//Copy result of previous AudioProcessor to send port
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memcpy(send,buffers->audio[Buffers::SEND_TRACK_0+m_trackid],nframes*sizeof(float));
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//Get connection status
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bool connected=jack_port_connected(m_returnport);
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//Is return port connected?
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//Yes then grab the audio data from the connected port
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//No: get the audio from the previous AudioProcessor
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if(connected)
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memcpy(buffers->audio[Buffers::RETURN_TRACK_0+m_trackid],ret,nframes*sizeof(float));
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else
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memcpy(buffers->audio[Buffers::RETURN_TRACK_0+m_trackid],
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buffers->audio[Buffers::SEND_TRACK_0+m_trackid],nframes*sizeof(float));
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}
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