From a609e6895a96db134697acce266e0cb94488f60b Mon Sep 17 00:00:00 2001 From: Bent Bisballe Nyeng Date: Mon, 20 May 2013 08:26:48 +0200 Subject: Centralise jackclient code for reuse among the jack client modules. Implement most of the jackaudio output module (probably broken atm.). --- drumgizmo/output/jackaudio/jackaudio.cc | 206 ++++++++++++++++++++++++++++++++ 1 file changed, 206 insertions(+) create mode 100644 drumgizmo/output/jackaudio/jackaudio.cc (limited to 'drumgizmo/output') diff --git a/drumgizmo/output/jackaudio/jackaudio.cc b/drumgizmo/output/jackaudio/jackaudio.cc new file mode 100644 index 0000000..9410915 --- /dev/null +++ b/drumgizmo/output/jackaudio/jackaudio.cc @@ -0,0 +1,206 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * jackaudio.cc + * + * Sat Apr 30 21:11:54 CEST 2011 + * Copyright 2011 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo 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. + * + * DrumGizmo 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 DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include + +#include +#include + +#define NOTE_ON 0x90 + +#include "../../jackclient.h" +#include + +class JackAudio : public JackProcess { +public: + JackAudio(); + ~JackAudio(); + bool init(int channels, char *cnames[]); + + void setParm(std::string parm, std::string value); + + bool start(); + void stop(); + + void pre(size_t size); + void run(int channel, sample_t* data, size_t size); + void post(size_t size); + + void jack_process(jack_nframes_t nframes); + +private: + JackClient *jackclient; + jack_port_t *output_port[64]; + size_t nchannels; + sample_t **channels; +}; + +JackAudio::JackAudio() +{ +} + +JackAudio::~JackAudio() +{ +} + +bool JackAudio::init(int nchannels, char *cnames[]) +{ + this->nchannels = nchannels; + channels = (sample_t**)malloc(nchannels * sizeof(sample_t*)); + + for(int i = 0; i < nchannels; i++) { + char buf[32]; + sprintf(buf, "%d", i + 1); + std::string name; + name += buf; + name += "-"; + name += cnames[i]; + output_port[i] = jack_port_register(jackclient->jack_client, + name.c_str(), + JACK_DEFAULT_AUDIO_TYPE, + JackPortIsOutput, 0); + channels[i] = (sample_t*)malloc(2048 * sizeof(sample_t)); + } + return true; +} + +void JackAudio::setParm(std::string parm, std::string value) +{ + if(parm == "jack_client") { + sscanf(value.c_str(), "%p", &jackclient); + if(jackclient) jackclient->addJackProcess(this); + } +} + +bool JackAudio::start() +{ + return true; +} + +void JackAudio::stop() +{ +} + +void JackAudio::pre(size_t size) +{ +} + +void JackAudio::run(int channel, sample_t* data, size_t size) +{ + // Copy engine data to ringbuffer. + for(int i = 0; i < size; i++) { + channels[channel][i] = data[i]; + } +} + +void JackAudio::post(size_t size) +{ +} + +void JackAudio::jack_process(jack_nframes_t nframes) +{ + printf("o"); fflush(stdout); + for(int c = 0; c < nchannels; c++) { + jack_default_audio_sample_t *out = + (jack_default_audio_sample_t *) jack_port_get_buffer(output_port[c], + nframes); + for(int i = 0; i < nframes; i++) { + out[i] = channels[c][i]; + } + } +} + +extern "C" { + void *create() + { + return new JackAudio(); + } + + void destroy(void *h) + { + JackAudio *jack = (JackAudio*)h; + delete jack; + } + + bool init(void *h, int cs, char *cnames[]) + { + JackAudio *jack = (JackAudio*)h; + return jack->init(cs, cnames); + } + + void setparm(void *h, const char *parm, const char *value) + { + JackAudio *jack = (JackAudio*)h; + jack->setParm(parm, value); + } + + bool start(void *h) + { + JackAudio *jack = (JackAudio*)h; + return jack->start(); + } + + void stop(void *h) + { + JackAudio *jack = (JackAudio*)h; + jack->stop(); + } + + void pre(void *h, size_t s) + { + JackAudio *jack = (JackAudio*)h; + jack->pre(s); + } + + void run(void *h, int ch, sample_t *data, size_t size) + { + JackAudio *jack = (JackAudio*)h; + jack->run(ch, data, size); + } + + void post(void *h, size_t s) + { + JackAudio *jack = (JackAudio*)h; + jack->post(s); + } +} + +#ifdef TEST_AUDIOINPUTENGINEJACKAUDIO +//Additional dependency files +//deps: +//Required cflags (autoconf vars may be used) +//cflags: +//Required link options (autoconf vars may be used) +//libs: +#include "test.h" + +TEST_BEGIN; + +// TODO: Put some testcode here (see test.h for usable macros). + +TEST_END; + +#endif/*TEST_AUDIOINPUTENGINEJACKAUDIO*/ -- cgit v1.2.3