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1324c25282
The build was broken for me with both GCC 8 and clang 11 due to the lookup of operator<<(). However, since the previous pattern of using a namespace then defining things in that namespace in... the global namespace... sort of... is very strange, and likely to cause further problems with ADL especially as we move to newer language versions and libraries, I opted to go all-out here and define things inside the appropriate namespace. This will probably resolve some earlier issues with clang and MSVC as well, since they each use different lookup rules that all have their own quirks around this stuff.
730 lines
15 KiB
C++
730 lines
15 KiB
C++
/*
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* Copyright (C) 2000-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2009-2010 David Robillard <d@drobilla.net>
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* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2014-2015 Robin Gareus <robin@gareus.org>
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*
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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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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <fcntl.h>
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#include <map>
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#include "temporal/time.h"
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#include "temporal/bbt_time.h"
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#include "pbd/error.h"
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#include "midi++/mmc.h"
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#include "midi++/port.h"
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#include "midi++/parser.h"
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#ifndef __INT_MAX__ // 'ssize_t' won't be defined yet
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// (except in later versions of MSVC)
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#if !defined (_MSC_VER) || (_MSC_VER < 1800)
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typedef long ssize_t;
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#endif
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#endif
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using namespace std;
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using namespace PBD;
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namespace MIDI {
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/**
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* As libtimecode is linked statically to libmidi++ this
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* is necessary to pull in all the symbols from libtimecode
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* so they are exported for other users of libtimecode.
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*/
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double tmp = Timecode::BBT_Time::ticks_per_beat;
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static std::map<int,string> mmc_cmd_map;
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static void build_mmc_cmd_map ()
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{
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pair<int,string> newpair;
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newpair.first = 0x1;
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newpair.second = "Stop";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x2;
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newpair.second = "Play";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x3;
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newpair.second = "DeferredPlay";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x4;
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newpair.second = "FastForward";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x5;
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newpair.second = "Rewind";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x6;
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newpair.second = "RecordStrobe";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x7;
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newpair.second = "RecordExit";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x8;
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newpair.second = "RecordPause";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x9;
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newpair.second = "Pause";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0xA;
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newpair.second = "Eject";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0xB;
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newpair.second = "Chase";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0xC;
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newpair.second = "CommandErrorReset";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0xD;
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newpair.second = "MmcReset";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x20;
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newpair.second = "Illegal Mackie Jog Start";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x21;
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newpair.second = "Illegal Mackie Jog Stop";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x40;
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newpair.second = "Write";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x41;
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newpair.second = "MaskedWrite";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x42;
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newpair.second = "Read";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x43;
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newpair.second = "Update";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x44;
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newpair.second = "Locate";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x45;
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newpair.second = "VariablePlay";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x46;
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newpair.second = "Search";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x47;
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newpair.second = "Shuttle";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x48;
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newpair.second = "Step";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x49;
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newpair.second = "AssignSystemMaster";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x4A;
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newpair.second = "GeneratorCommand";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x4B;
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newpair.second = "MtcCommand";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x4C;
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newpair.second = "Move";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x4D;
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newpair.second = "Add";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x4E;
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newpair.second = "Subtract";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x4F;
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newpair.second = "DropFrameAdjust";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x50;
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newpair.second = "Procedure";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x51;
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newpair.second = "Event";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x52;
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newpair.second = "Group";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x53;
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newpair.second = "CommandSegment";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x54;
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newpair.second = "DeferredVariablePlay";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x55;
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newpair.second = "RecordStrobeVariable";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x7C;
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newpair.second = "Wait";
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mmc_cmd_map.insert (newpair);
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newpair.first = 0x7F;
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newpair.second = "Resume";
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mmc_cmd_map.insert (newpair);
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}
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MachineControl::MachineControl ()
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{
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build_mmc_cmd_map ();
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_receive_device_id = 0x7f;
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_send_device_id = 0x7f;
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}
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void
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MachineControl::set_ports (MIDI::Port* ip, MIDI::Port* op)
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{
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port_connections.drop_connections ();
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_input_port = ip;
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_output_port = op;
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_input_port->parser()->mmc.connect_same_thread (port_connections, boost::bind (&MachineControl::process_mmc_message, this, _1, _2, _3));
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_input_port->parser()->start.connect_same_thread (port_connections, boost::bind (&MachineControl::spp_start, this));
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_input_port->parser()->contineu.connect_same_thread (port_connections, boost::bind (&MachineControl::spp_continue, this));
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_input_port->parser()->stop.connect_same_thread (port_connections, boost::bind (&MachineControl::spp_stop, this));
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}
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void
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MachineControl::set_receive_device_id (MIDI::byte id)
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{
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_receive_device_id = id & 0x7f;
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}
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void
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MachineControl::set_send_device_id (MIDI::byte id)
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{
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_send_device_id = id & 0x7f;
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}
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bool
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MachineControl::is_mmc (MIDI::byte *sysex_buf, size_t len)
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{
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if (len < 4 || len > 48) {
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return false;
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}
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if (sysex_buf[1] != 0x7f) {
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return false;
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}
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if (sysex_buf[3] != 0x6 && /* MMC Command */
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sysex_buf[3] != 0x7) { /* MMC Response */
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return false;
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}
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return true;
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}
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void
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MachineControl::process_mmc_message (Parser &, MIDI::byte *msg, size_t len)
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{
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size_t skiplen;
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byte *mmc_msg;
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bool single_byte;
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/* Reject if its not for us. 0x7f is the "all-call" device ID */
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/* msg[0] = 0x7f (MMC sysex ID(
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msg[1] = device ID
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msg[2] = 0x6 (MMC command) or 0x7 (MMC response)
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msg[3] = MMC command code
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msg[4] = (typically) byte count for following part of command
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*/
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#if 0
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cerr << "*** me = " << (int) _receive_device_id << " MMC message: len = " << len << "\n\t";
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for (size_t i = 0; i < len; i++) {
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cerr << hex << (int) msg[i] << dec << ' ';
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}
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cerr << endl;
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#endif
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if (_receive_device_id != 0x7f && msg[1] != 0x7f && msg[1] != _receive_device_id) {
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return;
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}
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mmc_msg = &msg[3];
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len -= 3;
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do {
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single_byte = false;
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/* this works for all non-single-byte "counted"
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commands. we set it to 1 for the exceptions.
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*/
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std::map<int,string>::iterator x = mmc_cmd_map.find ((int)mmc_msg[0]);
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string cmdname = "unknown";
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if (x != mmc_cmd_map.end()) {
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cmdname = (*x).second;
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}
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#if 0
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cerr << "+++ MMC type "
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<< hex
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<< ((int) *mmc_msg)
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<< dec
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<< " \"" << cmdname << "\" "
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<< " len = " << len
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<< endl;
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#endif
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switch (*mmc_msg) {
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/* SINGLE-BYTE, UNCOUNTED COMMANDS */
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case cmdStop:
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Stop (*this);
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single_byte = true;
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break;
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case cmdPlay:
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Play (*this);
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single_byte = true;
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break;
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case cmdDeferredPlay:
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DeferredPlay (*this);
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single_byte = true;
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break;
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case cmdFastForward:
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FastForward (*this);
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single_byte = true;
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break;
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case cmdRewind:
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Rewind (*this);
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single_byte = true;
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break;
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case cmdRecordStrobe:
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RecordStrobe (*this);
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single_byte = true;
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break;
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case cmdRecordExit:
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RecordExit (*this);
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single_byte = true;
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break;
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case cmdRecordPause:
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RecordPause (*this);
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single_byte = true;
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break;
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case cmdPause:
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Pause (*this);
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single_byte = true;
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break;
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case cmdEject:
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Eject (*this);
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single_byte = true;
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break;
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case cmdChase:
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Chase (*this);
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single_byte = true;
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break;
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case cmdCommandErrorReset:
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CommandErrorReset (*this);
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single_byte = true;
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break;
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case cmdMmcReset:
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MmcReset (*this);
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single_byte = true;
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break;
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case cmdIllegalMackieJogStart:
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JogStart (*this);
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single_byte = true;
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break;
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case cmdIllegalMackieJogStop:
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JogStop (*this);
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single_byte = true;
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break;
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/* END OF SINGLE-BYTE, UNCOUNTED COMMANDS */
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case cmdMaskedWrite:
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do_masked_write (mmc_msg, len);
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break;
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case cmdLocate:
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do_locate (mmc_msg, len);
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break;
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case cmdShuttle:
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do_shuttle (mmc_msg, len);
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break;
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case cmdStep:
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do_step (mmc_msg, len);
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break;
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case cmdWrite:
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case cmdRead:
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case cmdUpdate:
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case cmdVariablePlay:
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case cmdSearch:
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case cmdAssignSystemMaster:
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case cmdGeneratorCommand:
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case cmdMtcCommand:
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case cmdMove:
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case cmdAdd:
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case cmdSubtract:
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case cmdDropFrameAdjust:
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case cmdProcedure:
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case cmdEvent:
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case cmdGroup:
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case cmdCommandSegment:
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case cmdDeferredVariablePlay:
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case cmdRecordStrobeVariable:
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case cmdWait:
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case cmdResume:
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error << "MIDI::MachineControl: unimplemented MMC command "
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<< hex << (int) *mmc_msg << dec
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<< endmsg;
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break;
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default:
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error << "MIDI::MachineControl: unknown MMC command "
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<< hex << (int) *mmc_msg << dec
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<< endmsg;
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break;
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}
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/* increase skiplen to cover the command byte and
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count byte (if it existed).
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*/
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if (!single_byte) {
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skiplen = mmc_msg[1] + 2;
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} else {
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skiplen = 1;
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}
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if (len <= skiplen) {
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break;
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}
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mmc_msg += skiplen;
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len -= skiplen;
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} while (len > 1); /* skip terminating EOX byte */
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}
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int
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MachineControl::do_masked_write (MIDI::byte *msg, size_t len)
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{
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/* return the number of bytes "consumed" */
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int retval = msg[1] + 2; /* bytes following + 2 */
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switch (msg[2]) {
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case 0x4f: /* Track Record Ready Status */
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write_track_status (&msg[3], len - 3, msg[2]);
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break;
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case 0x62: /* track mute */
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write_track_status (&msg[3], len - 3, msg[2]);
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break;
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default:
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warning << "MIDI::MachineControl: masked write to "
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<< hex << (int) msg[2] << dec
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<< " not implemented"
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<< endmsg;
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}
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return retval;
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}
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void
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MachineControl::write_track_status (MIDI::byte *msg, size_t /*len*/, MIDI::byte reg)
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{
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size_t n;
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ssize_t base_track;
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/* Bits 0-4 of the first byte are for special tracks:
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bit 0: video
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bit 1: reserved
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bit 2: time code
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bit 3: aux track a
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bit 4: aux track b
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the format of the message (its an MMC Masked Write) is:
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0x41 Command Code
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<count> byte count of following data
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<name> byte value of the field being written
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<byte #> byte number of target byte in the
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bitmap being written to
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<mask> ones in the mask indicate which bits will be changed
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<data> new data for the byte being written
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by the time this code is executing, msg[0] is the
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byte number of the target byte. if its zero, we
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are writing to a special byte in the standard
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track bitmap, in which the first 5 bits are
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special. hence the bits for tracks 1 + 2 are bits
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5 and 6 of the first byte of the track
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bitmap. so:
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change track 1: msg[0] = 0; << first byte of track bitmap
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msg[1] = 0100000; << binary: bit 5 set
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change track 2: msg[0] = 0; << first byte of track bitmap
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msg[1] = 1000000; << binary: bit 6 set
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change track 3: msg[0] = 1; << second byte of track bitmap
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msg[1] = 0000001; << binary: bit 0 set
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the (msg[0] * 8) - 6 computation is an attempt to
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extract the value of the first track: ie. the one
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that would be indicated by bit 0 being set.
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so, if msg[0] = 0, msg[1] = 0100000 (binary),
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what happens is that base_track = -5, but by the
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time we check the correct bit, n = 5, and so the
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computed track for the status change is 0 (first
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track).
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if msg[0] = 1, then the base track for any change is 2 (the third track), and so on.
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*/
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/* XXX check needed to make sure we don't go outside the
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supported number of tracks.
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*/
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if (msg[0] == 0) {
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base_track = -5;
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} else {
|
|
base_track = (msg[0] * 8) - 6;
|
|
}
|
|
|
|
for (n = 0; n < 7; n++) {
|
|
if (msg[1] & (1<<n)) {
|
|
|
|
/* Only touch tracks that have the "mask"
|
|
bit set.
|
|
*/
|
|
|
|
bool val = (msg[2] & (1<<n));
|
|
|
|
switch (reg) {
|
|
case 0x4f:
|
|
trackRecordStatus[base_track+n] = val;
|
|
TrackRecordStatusChange (*this, base_track+n, val);
|
|
break;
|
|
|
|
case 0x62:
|
|
trackMute[base_track+n] = val;
|
|
TrackMuteChange (*this, base_track+n, val);
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
int
|
|
MachineControl::do_locate (MIDI::byte *msg, size_t /*msglen*/)
|
|
{
|
|
if (msg[2] == 0) {
|
|
warning << "MIDI::MMC: locate [I/F] command not supported"
|
|
<< endmsg;
|
|
return 0;
|
|
}
|
|
|
|
/* regular "target" locate command */
|
|
|
|
Locate (*this, &msg[3]);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
MachineControl::do_step (MIDI::byte *msg, size_t /*msglen*/)
|
|
{
|
|
int steps = msg[2] & 0x3f;
|
|
|
|
if (msg[2] & 0x40) {
|
|
steps = -steps;
|
|
}
|
|
|
|
Step (*this, steps);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
MachineControl::do_shuttle (MIDI::byte *msg, size_t /*msglen*/)
|
|
{
|
|
size_t forward;
|
|
byte sh = msg[2];
|
|
byte sm = msg[3];
|
|
byte sl = msg[4];
|
|
size_t left_shift;
|
|
size_t integral;
|
|
size_t fractional;
|
|
float shuttle_speed;
|
|
|
|
if (sh & (1<<6)) {
|
|
forward = false;
|
|
} else {
|
|
forward = true;
|
|
}
|
|
|
|
left_shift = (sh & 0x38);
|
|
|
|
integral = ((sh & 0x7) << left_shift) | (sm >> (7 - left_shift));
|
|
fractional = ((sm << left_shift) << 7) | sl;
|
|
|
|
shuttle_speed = integral +
|
|
((float)fractional / (1 << (14 - left_shift)));
|
|
|
|
Shuttle (*this, shuttle_speed, forward);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
MachineControl::enable_send (bool yn)
|
|
{
|
|
_enable_send = yn;
|
|
}
|
|
|
|
/** Send a MMC command to a the MMC port.
|
|
* @param c command.
|
|
*/
|
|
void
|
|
MachineControl::send (MachineControlCommand const & c, timestamp_t when)
|
|
{
|
|
if (_output_port == 0 || !_enable_send) {
|
|
// cerr << "Not delivering MMC " << _mmc->port() << " - " << session_send_mmc << endl;
|
|
return;
|
|
}
|
|
|
|
MIDI::byte buffer[32];
|
|
MIDI::byte* b = c.fill_buffer (this, buffer);
|
|
|
|
if (_output_port->midimsg (buffer, b - buffer, when)) {
|
|
error << "MMC: cannot send command" << endmsg;
|
|
}
|
|
}
|
|
|
|
void
|
|
MachineControl::spp_start ()
|
|
{
|
|
SPPStart (); /* EMIT SIGNAL */
|
|
}
|
|
|
|
void
|
|
MachineControl::spp_continue ()
|
|
{
|
|
SPPContinue (); /* EMIT SIGNAL */
|
|
}
|
|
|
|
void
|
|
MachineControl::spp_stop ()
|
|
{
|
|
SPPStop (); /* EMIT SIGNAL */
|
|
}
|
|
|
|
MachineControlCommand::MachineControlCommand (MachineControl::Command c)
|
|
: _command (c)
|
|
{
|
|
|
|
}
|
|
|
|
MachineControlCommand::MachineControlCommand (Timecode::Time t)
|
|
: _command (MachineControl::cmdLocate)
|
|
, _time (t)
|
|
{
|
|
|
|
}
|
|
|
|
MIDI::byte *
|
|
MachineControlCommand::fill_buffer (MachineControl* mmc, MIDI::byte* b) const
|
|
{
|
|
*b++ = 0xf0; // SysEx
|
|
*b++ = 0x7f; // Real-time SysEx ID for MMC
|
|
*b++ = mmc->send_device_id();
|
|
*b++ = 0x6; // MMC command
|
|
|
|
*b++ = _command;
|
|
|
|
if (_command == MachineControl::cmdLocate) {
|
|
*b++ = 0x6; // byte count
|
|
*b++ = 0x1; // "TARGET" subcommand
|
|
*b++ = _time.hours % 24;
|
|
*b++ = _time.minutes;
|
|
*b++ = _time.seconds;
|
|
*b++ = _time.frames;
|
|
*b++ = _time.subframes;
|
|
}
|
|
|
|
*b++ = 0xf7;
|
|
|
|
return b;
|
|
}
|
|
|
|
}
|