185 lines
3.7 KiB
C++
185 lines
3.7 KiB
C++
/*
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Copyright (C) 1998 Paul Barton-Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: port.cc 11871 2012-04-10 16:27:01Z paul $
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*/
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#include <iostream>
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#include <cstdio>
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#include <fcntl.h>
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#include <errno.h>
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#include "pbd/xml++.h"
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#include "pbd/error.h"
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#include "pbd/failed_constructor.h"
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#include "pbd/convert.h"
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#include "pbd/strsplit.h"
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#include "pbd/stacktrace.h"
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#include "midi++/types.h"
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#include "midi++/port.h"
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#include "midi++/channel.h"
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using namespace MIDI;
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using namespace std;
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using namespace PBD;
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string Port::state_node_name = "MIDI-port";
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Port::Port (string const & name, Flags flags)
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: _flags (flags)
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, _centrally_parsed (true)
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{
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init (name, flags);
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}
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Port::Port (const XMLNode& node)
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: _centrally_parsed (true)
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{
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Descriptor desc (node);
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init (desc.tag, desc.flags);
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/* derived class must call ::set_state() */
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}
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void
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Port::init (string const & name, Flags flags)
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{
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_ok = false; /* derived class must set to true if constructor
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succeeds.
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*/
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_parser = 0;
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_tagname = name;
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_flags = flags;
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_parser = new Parser ();
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for (int i = 0; i < 16; i++) {
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_channel[i] = new Channel (i, *this);
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_channel[i]->connect_signals ();
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}
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}
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Port::~Port ()
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{
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for (int i = 0; i < 16; i++) {
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delete _channel[i];
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}
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delete _parser;
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}
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/** Send a clock tick message.
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* \return true on success.
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*/
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bool
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Port::clock (timestamp_t timestamp)
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{
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static byte clockmsg = 0xf8;
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if (sends_output()) {
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return midimsg (&clockmsg, 1, timestamp);
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}
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return false;
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}
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std::ostream & MIDI::operator << ( std::ostream & os, const MIDI::Port & port )
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{
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using namespace std;
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os << "MIDI::Port { ";
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os << "name: " << port.name();
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os << "; ";
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os << "ok: " << port.ok();
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os << "; ";
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os << " }";
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return os;
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}
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Port::Descriptor::Descriptor (const XMLNode& node)
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{
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const XMLProperty *prop;
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bool have_tag = false;
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bool have_mode = false;
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if ((prop = node.property ("tag")) != 0) {
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tag = prop->value();
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have_tag = true;
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}
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if ((prop = node.property ("mode")) != 0) {
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if (strings_equal_ignore_case (prop->value(), "output") || strings_equal_ignore_case (prop->value(), "out")) {
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flags = IsOutput;
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} else if (strings_equal_ignore_case (prop->value(), "input") || strings_equal_ignore_case (prop->value(), "in")) {
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flags = IsInput;
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}
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have_mode = true;
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}
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if (!have_tag || !have_mode) {
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throw failed_constructor();
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}
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}
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XMLNode&
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Port::get_state () const
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{
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XMLNode* root = new XMLNode (state_node_name);
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root->add_property ("tag", _tagname);
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if (_flags == IsInput) {
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root->add_property ("mode", "input");
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} else {
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root->add_property ("mode", "output");
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}
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#if 0
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byte device_inquiry[6];
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device_inquiry[0] = 0xf0;
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device_inquiry[0] = 0x7e;
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device_inquiry[0] = 0x7f;
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device_inquiry[0] = 0x06;
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device_inquiry[0] = 0x02;
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device_inquiry[0] = 0xf7;
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write (device_inquiry, sizeof (device_inquiry), 0);
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#endif
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return *root;
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}
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void
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Port::set_state (const XMLNode& node)
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{
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const XMLProperty* prop;
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if ((prop = node.property ("tag")) == 0 || prop->value() != _tagname) {
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return;
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}
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}
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bool
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Port::centrally_parsed() const
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{
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return _centrally_parsed;
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}
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