1bc8c067b9
Ardour is a full-featured, free and open-source hard disk recorder and digital audio workstation program suitable for professional use. It features unlimited audio tracks and buses, non-destructive, non-linear editing with unlimited undo, and anything-to-anywhere signal routing. It supports standard file formats, such as BWF, WAV, WAV64, AIFF and CAF, and it can use LADSPA, LV2, VST and AudioUnit plugin formats. with and ok ajacoutot@
137 lines
3.0 KiB
C++
137 lines
3.0 KiB
C++
/*
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* Copyright (c) 2012 Stefan Sperling <stsp@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <cstdlib>
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#include <poll.h>
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#include <pbd/xml++.h>
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#include <midi++/sndio_midiport.h>
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#include <midi++/types.h>
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#include "i18n.h"
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using namespace std;
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using namespace MIDI;
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SndioMidi_MidiPort::SndioMidi_MidiPort(const XMLNode& node) : Port(node)
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{
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const char *dev;
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Descriptor desc(node);
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if (strcmp(desc.device.c_str(), "ardour") == 0)
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dev = NULL; /* default */
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else
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dev = desc.device.c_str();
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hdl = mio_open(dev, MIO_IN | MIO_OUT, 1);
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if (hdl) {
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pfd = new struct pollfd[mio_nfds(hdl)];
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_ok = true;
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}
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}
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SndioMidi_MidiPort::~SndioMidi_MidiPort()
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{
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if (hdl) {
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mio_close(hdl);
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delete[] pfd;
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}
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}
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int SndioMidi_MidiPort::poll(int event) const
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{
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int n = mio_pollfd(hdl, pfd, event);
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if (n == 0)
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return -1;
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if (::poll(pfd, n, 100) < 0)
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return -1;
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int revents = mio_revents(hdl, pfd);
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if (revents & event) {
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for (unsigned int i = 0; i < sizeof(pfd)/sizeof(pfd[0]); i++) {
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if (pfd[i].revents & event)
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return pfd[i].fd;
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}
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}
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return -1;
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}
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int SndioMidi_MidiPort::read(byte *buf, size_t max)
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{
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if (mio_eof(hdl)) {
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cerr << "sndio MIDI read error" << endl;
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return 0;
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}
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if (input_parser) {
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size_t n = mio_read(hdl, buf, max);
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if (n == 0)
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return 0;
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input_parser->raw_preparse(*input_parser, buf, n);
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for (unsigned int i = 0; i < n; i++)
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input_parser->scanner(buf[i]);
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input_parser->raw_postparse(*input_parser, buf, n);
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return (int)n;
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}
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return 0;
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}
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int SndioMidi_MidiPort::write(byte *buf, size_t len)
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{
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if (mio_eof(hdl)) {
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cerr << "sndio MIDI write error" << endl;
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return 0;
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}
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return (int)mio_write(hdl, buf, len);
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}
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int
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SndioMidi_MidiPort::selectable() const
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{
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return poll(POLLIN|POLLOUT);
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}
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int
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SndioMidi_MidiPort::discover(vector<PortSet>& ports)
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{
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int ret = 0;
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/* Try to find usable sndio midi ports.
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* Users can add additional ports manually. */
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for (int n = 0; n < 8; n++) {
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std::string dev_name = "rmidi/" + n;
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struct mio_hdl *hdl;
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hdl = mio_open(dev_name.c_str(), MIO_IN | MIO_OUT, 1);
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if (hdl) {
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mio_close(hdl);
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XMLNode node(X_("MIDI-port"));
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node.add_property("tag", "ardour");
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node.add_property("device", dev_name);
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node.add_property("type", "sndio");
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node.add_property("mode", "duplex");
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ports.back().ports.push_back(node);
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ret = 1;
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}
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}
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return ret;
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}
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