I'm not sure if this is really the best way to do event types (should it just be a completely static enum in evoral, or completely dynamic and provided by the type map, or a mix like currently?), but previously the event type was frequently set to either total garbage, or parameter types, which are a different thing. This fixes all those cases, and makes Evoral::EventType an enum so the compiler will warn about implicit conversions from int.
791 lines
20 KiB
C++
791 lines
20 KiB
C++
/*
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Copyright (C) 2006 Paul Davis
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Author: David Robillard
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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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*/
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#include <vector>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <errno.h>
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#include <regex.h>
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#include "pbd/file_utils.h"
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#include "pbd/stl_delete.h"
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#include "pbd/strsplit.h"
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#include "pbd/gstdio_compat.h"
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#include <glibmm/miscutils.h>
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#include <glibmm/fileutils.h>
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#include "evoral/Control.hpp"
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#include "evoral/SMF.hpp"
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#include "ardour/debug.h"
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#include "ardour/midi_channel_filter.h"
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#include "ardour/midi_model.h"
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#include "ardour/midi_ring_buffer.h"
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#include "ardour/midi_state_tracker.h"
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#include "ardour/parameter_types.h"
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#include "ardour/session.h"
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#include "ardour/smf_source.h"
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#include "pbd/i18n.h"
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using namespace ARDOUR;
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using namespace Glib;
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using namespace PBD;
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using namespace Evoral;
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using namespace std;
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/** Constructor used for new internal-to-session files. File cannot exist. */
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SMFSource::SMFSource (Session& s, const string& path, Source::Flag flags)
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: Source(s, DataType::MIDI, path, flags)
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, MidiSource(s, path, flags)
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, FileSource(s, DataType::MIDI, path, string(), flags)
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, Evoral::SMF()
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, _open (false)
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, _last_ev_time_beats(0.0)
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, _last_ev_time_frames(0)
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, _smf_last_read_end (0)
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, _smf_last_read_time (0)
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{
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/* note that origin remains empty */
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if (init (_path, false)) {
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throw failed_constructor ();
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}
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assert (!Glib::file_test (_path, Glib::FILE_TEST_EXISTS));
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existence_check ();
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_flags = Source::Flag (_flags | Empty);
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/* file is not opened until write */
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if (flags & Writable) {
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return;
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}
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if (open (_path)) {
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throw failed_constructor ();
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}
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_open = true;
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}
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/** Constructor used for external-to-session files. File must exist. */
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SMFSource::SMFSource (Session& s, const string& path)
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: Source(s, DataType::MIDI, path, Source::Flag (0))
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, MidiSource(s, path, Source::Flag (0))
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, FileSource(s, DataType::MIDI, path, string(), Source::Flag (0))
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, Evoral::SMF()
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, _open (false)
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, _last_ev_time_beats(0.0)
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, _last_ev_time_frames(0)
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, _smf_last_read_end (0)
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, _smf_last_read_time (0)
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{
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/* note that origin remains empty */
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if (init (_path, true)) {
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throw failed_constructor ();
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}
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assert (Glib::file_test (_path, Glib::FILE_TEST_EXISTS));
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existence_check ();
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if (_flags & Writable) {
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/* file is not opened until write */
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return;
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}
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if (open (_path)) {
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throw failed_constructor ();
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}
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_open = true;
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}
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/** Constructor used for existing internal-to-session files. */
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SMFSource::SMFSource (Session& s, const XMLNode& node, bool must_exist)
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: Source(s, node)
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, MidiSource(s, node)
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, FileSource(s, node, must_exist)
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, _open (false)
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, _last_ev_time_beats(0.0)
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, _last_ev_time_frames(0)
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, _smf_last_read_end (0)
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, _smf_last_read_time (0)
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{
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if (set_state(node, Stateful::loading_state_version)) {
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throw failed_constructor ();
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}
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/* we expect the file to exist, but if no MIDI data was ever added
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it will have been removed at last session close. so, we don't
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require it to exist if it was marked Empty.
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*/
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try {
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if (init (_path, true)) {
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throw failed_constructor ();
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}
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} catch (MissingSource& err) {
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if (_flags & Source::Empty) {
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/* we don't care that the file was not found, because
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it was empty. But FileSource::init() will have
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failed to set our _path correctly, so we have to do
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this ourselves. Use the first entry in the search
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path for MIDI files, which is assumed to be the
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correct "main" location.
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*/
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std::vector<string> sdirs = s.source_search_path (DataType::MIDI);
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_path = Glib::build_filename (sdirs.front(), _path);
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/* This might be important, too */
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_file_is_new = true;
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} else {
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/* pass it on */
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throw;
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}
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}
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if (!(_flags & Source::Empty)) {
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assert (Glib::file_test (_path, Glib::FILE_TEST_EXISTS));
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existence_check ();
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} else {
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assert (_flags & Source::Writable);
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/* file will be opened on write */
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return;
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}
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if (open (_path)) {
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throw failed_constructor ();
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}
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_open = true;
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}
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SMFSource::~SMFSource ()
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{
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if (removable()) {
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::g_unlink (_path.c_str());
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}
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}
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int
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SMFSource::open_for_write ()
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{
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if (create (_path)) {
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return -1;
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}
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_open = true;
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return 0;
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}
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void
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SMFSource::close ()
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{
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/* nothing to do: file descriptor is never kept open */
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}
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/** All stamps in audio frames */
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framecnt_t
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SMFSource::read_unlocked (const Lock& lock,
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Evoral::EventSink<framepos_t>& destination,
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framepos_t const source_start,
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framepos_t start,
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framecnt_t duration,
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Evoral::Range<framepos_t>* loop_range,
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MidiStateTracker* tracker,
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MidiChannelFilter* filter) const
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{
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int ret = 0;
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uint64_t time = 0; // in SMF ticks, 1 tick per _ppqn
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if (writable() && !_open) {
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/* nothing to read since nothing has ben written */
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return duration;
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}
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: start %1 duration %2\n", start, duration));
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// Output parameters for read_event (which will allocate scratch in buffer as needed)
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uint32_t ev_delta_t = 0;
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uint32_t ev_size = 0;
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uint8_t* ev_buffer = 0;
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size_t scratch_size = 0; // keep track of scratch to minimize reallocs
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BeatsFramesConverter converter(_session.tempo_map(), source_start);
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const uint64_t start_ticks = converter.from(start).to_ticks();
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: start in ticks %1\n", start_ticks));
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if (_smf_last_read_end == 0 || start != _smf_last_read_end) {
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: seek to %1\n", start));
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Evoral::SMF::seek_to_start();
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while (time < start_ticks) {
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gint ignored;
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ret = read_event(&ev_delta_t, &ev_size, &ev_buffer, &ignored);
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if (ret == -1) { // EOF
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_smf_last_read_end = start + duration;
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return duration;
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}
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time += ev_delta_t; // accumulate delta time
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}
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} else {
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: set time to %1\n", _smf_last_read_time));
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time = _smf_last_read_time;
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}
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_smf_last_read_end = start + duration;
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while (true) {
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gint ignored; /* XXX don't ignore note id's ??*/
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ret = read_event(&ev_delta_t, &ev_size, &ev_buffer, &ignored);
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if (ret == -1) { // EOF
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break;
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}
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time += ev_delta_t; // accumulate delta time
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_smf_last_read_time = time;
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if (ret == 0) { // meta-event (skipped, just accumulate time)
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continue;
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}
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DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked delta %1, time %2, buf[0] %3\n",
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ev_delta_t, time, ev_buffer[0]));
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assert(time >= start_ticks);
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/* Note that we add on the source start time (in session frames) here so that ev_frame_time
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is in session frames.
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*/
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const framepos_t ev_frame_time = converter.to(Evoral::Beats::ticks_at_rate(time, ppqn())) + source_start;
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if (loop_range) {
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loop_range->squish (ev_frame_time);
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}
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if (ev_frame_time < start + duration) {
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if (!filter || !filter->filter(ev_buffer, ev_size)) {
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destination.write (ev_frame_time, Evoral::MIDI_EVENT, ev_size, ev_buffer);
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if (tracker) {
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tracker->track(ev_buffer);
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}
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}
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} else {
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break;
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}
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if (ev_size > scratch_size) {
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scratch_size = ev_size;
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}
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ev_size = scratch_size; // ensure read_event only allocates if necessary
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}
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return duration;
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}
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framecnt_t
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SMFSource::write_unlocked (const Lock& lock,
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MidiRingBuffer<framepos_t>& source,
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framepos_t position,
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framecnt_t cnt)
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{
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if (!_writing) {
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mark_streaming_write_started (lock);
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}
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framepos_t time;
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Evoral::EventType type;
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uint32_t size;
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size_t buf_capacity = 4;
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uint8_t* buf = (uint8_t*)malloc(buf_capacity);
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if (_model && !_model->writing()) {
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_model->start_write();
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}
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Evoral::Event<framepos_t> ev;
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while (true) {
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/* Get the event time, in frames since session start but ignoring looping. */
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bool ret;
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if (!(ret = source.peek ((uint8_t*)&time, sizeof (time)))) {
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/* Ring is empty, no more events. */
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break;
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}
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if ((cnt != max_framecnt) &&
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(time > position + _capture_length + cnt)) {
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/* The diskstream doesn't want us to write everything, and this
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event is past the end of this block, so we're done for now. */
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break;
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}
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/* Read the time, type, and size of the event. */
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if (!(ret = source.read_prefix (&time, &type, &size))) {
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error << _("Unable to read event prefix, corrupt MIDI ring") << endmsg;
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break;
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}
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/* Enlarge body buffer if necessary now that we know the size. */
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if (size > buf_capacity) {
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buf_capacity = size;
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buf = (uint8_t*)realloc(buf, size);
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}
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/* Read the event body into buffer. */
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ret = source.read_contents(size, buf);
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if (!ret) {
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error << _("Event has time and size but no body, corrupt MIDI ring") << endmsg;
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break;
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}
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/* Convert event time from absolute to source relative. */
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if (time < position) {
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error << _("Event time is before MIDI source position") << endmsg;
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break;
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}
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time -= position;
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ev.set(buf, size, time);
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ev.set_event_type(Evoral::MIDI_EVENT);
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ev.set_id(Evoral::next_event_id());
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if (!(ev.is_channel_event() || ev.is_smf_meta_event() || ev.is_sysex())) {
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continue;
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}
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append_event_frames(lock, ev, position);
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}
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Evoral::SMF::flush ();
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free (buf);
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return cnt;
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}
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/** Append an event with a timestamp in beats */
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void
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SMFSource::append_event_beats (const Glib::Threads::Mutex::Lock& lock,
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const Evoral::Event<Evoral::Beats>& ev)
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{
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if (!_writing || ev.size() == 0) {
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return;
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}
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#if 0
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printf("SMFSource: %s - append_event_beats ID = %d time = %lf, size = %u, data = ",
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name().c_str(), ev.id(), ev.time(), ev.size());
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for (size_t i = 0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");
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#endif
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Evoral::Beats time = ev.time();
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if (time < _last_ev_time_beats) {
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const Evoral::Beats difference = _last_ev_time_beats - time;
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if (difference.to_double() / (double)ppqn() < 1.0) {
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/* Close enough. This problem occurs because Sequence is not
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actually ordered due to fuzzy time comparison. I'm pretty sure
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this is inherently a bad idea which causes problems all over the
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place, but tolerate it here for now anyway. */
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time = _last_ev_time_beats;
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} else {
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/* Out of order by more than a tick. */
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warning << string_compose(_("Skipping event with unordered beat time %1 < %2 (off by %3 beats, %4 ticks)"),
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ev.time(), _last_ev_time_beats, difference, difference.to_double() / (double)ppqn())
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<< endmsg;
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return;
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}
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}
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Evoral::event_id_t event_id;
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if (ev.id() < 0) {
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event_id = Evoral::next_event_id();
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} else {
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event_id = ev.id();
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}
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if (_model) {
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_model->append (ev, event_id);
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}
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_length_beats = max(_length_beats, time);
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const Evoral::Beats delta_time_beats = time - _last_ev_time_beats;
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const uint32_t delta_time_ticks = delta_time_beats.to_ticks(ppqn());
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Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer(), event_id);
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_last_ev_time_beats = time;
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_flags = Source::Flag (_flags & ~Empty);
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}
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/** Append an event with a timestamp in frames (framepos_t) */
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void
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SMFSource::append_event_frames (const Glib::Threads::Mutex::Lock& lock,
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const Evoral::Event<framepos_t>& ev,
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framepos_t position)
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{
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if (!_writing || ev.size() == 0) {
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return;
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}
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// printf("SMFSource: %s - append_event_frames ID = %d time = %u, size = %u, data = ",
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// name().c_str(), ev.id(), ev.time(), ev.size());
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// for (size_t i=0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");
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if (ev.time() < _last_ev_time_frames) {
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warning << string_compose(_("Skipping event with unordered frame time %1 < %2"),
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ev.time(), _last_ev_time_frames)
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<< endmsg;
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return;
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}
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BeatsFramesConverter converter(_session.tempo_map(), position);
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const Evoral::Beats ev_time_beats = converter.from(ev.time());
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Evoral::event_id_t event_id;
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if (ev.id() < 0) {
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event_id = Evoral::next_event_id();
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} else {
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event_id = ev.id();
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}
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if (_model) {
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const Evoral::Event<Evoral::Beats> beat_ev (ev.event_type(),
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ev_time_beats,
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ev.size(),
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const_cast<uint8_t*>(ev.buffer()));
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_model->append (beat_ev, event_id);
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}
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_length_beats = max(_length_beats, ev_time_beats);
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const Evoral::Beats last_time_beats = converter.from (_last_ev_time_frames);
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const Evoral::Beats delta_time_beats = ev_time_beats - last_time_beats;
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const uint32_t delta_time_ticks = delta_time_beats.to_ticks(ppqn());
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Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer(), event_id);
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_last_ev_time_frames = ev.time();
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_flags = Source::Flag (_flags & ~Empty);
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}
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XMLNode&
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SMFSource::get_state ()
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{
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XMLNode& node = MidiSource::get_state();
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node.add_property (X_("origin"), _origin);
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return node;
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}
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int
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SMFSource::set_state (const XMLNode& node, int version)
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{
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if (Source::set_state (node, version)) {
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return -1;
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}
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if (MidiSource::set_state (node, version)) {
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return -1;
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}
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if (FileSource::set_state (node, version)) {
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return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
SMFSource::mark_streaming_midi_write_started (const Lock& lock, NoteMode mode)
|
|
{
|
|
if (!_open && open_for_write()) {
|
|
error << string_compose (_("cannot open MIDI file %1 for write"), _path) << endmsg;
|
|
/* XXX should probably throw or return something */
|
|
return;
|
|
}
|
|
|
|
MidiSource::mark_streaming_midi_write_started (lock, mode);
|
|
Evoral::SMF::begin_write ();
|
|
_last_ev_time_beats = Evoral::Beats();
|
|
_last_ev_time_frames = 0;
|
|
}
|
|
|
|
void
|
|
SMFSource::mark_streaming_write_completed (const Lock& lock)
|
|
{
|
|
mark_midi_streaming_write_completed (lock, Evoral::Sequence<Evoral::Beats>::DeleteStuckNotes);
|
|
}
|
|
|
|
void
|
|
SMFSource::mark_midi_streaming_write_completed (const Lock& lm, Evoral::Sequence<Evoral::Beats>::StuckNoteOption stuck_notes_option, Evoral::Beats when)
|
|
{
|
|
MidiSource::mark_midi_streaming_write_completed (lm, stuck_notes_option, when);
|
|
|
|
if (!writable()) {
|
|
warning << string_compose ("attempt to write to unwritable SMF file %1", _path) << endmsg;
|
|
return;
|
|
}
|
|
|
|
if (_model) {
|
|
_model->set_edited(false);
|
|
}
|
|
|
|
Evoral::SMF::end_write (_path);
|
|
|
|
/* data in the file now, not removable */
|
|
|
|
mark_nonremovable ();
|
|
}
|
|
|
|
bool
|
|
SMFSource::valid_midi_file (const string& file)
|
|
{
|
|
if (safe_midi_file_extension (file) ) {
|
|
return (SMF::test (file) );
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
SMFSource::safe_midi_file_extension (const string& file)
|
|
{
|
|
static regex_t compiled_pattern;
|
|
static bool compile = true;
|
|
const int nmatches = 2;
|
|
regmatch_t matches[nmatches];
|
|
|
|
if (Glib::file_test (file, Glib::FILE_TEST_EXISTS)) {
|
|
if (!Glib::file_test (file, Glib::FILE_TEST_IS_REGULAR)) {
|
|
/* exists but is not a regular file */
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (compile && regcomp (&compiled_pattern, "\\.[mM][iI][dD][iI]?$", REG_EXTENDED)) {
|
|
return false;
|
|
} else {
|
|
compile = false;
|
|
}
|
|
|
|
if (regexec (&compiled_pattern, file.c_str(), nmatches, matches, 0)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool compare_eventlist (
|
|
const std::pair< const Evoral::Event<Evoral::Beats>*, gint >& a,
|
|
const std::pair< const Evoral::Event<Evoral::Beats>*, gint >& b) {
|
|
return ( a.first->time() < b.first->time() );
|
|
}
|
|
|
|
void
|
|
SMFSource::load_model (const Glib::Threads::Mutex::Lock& lock, bool force_reload)
|
|
{
|
|
if (_writing) {
|
|
return;
|
|
}
|
|
|
|
if (_model && !force_reload) {
|
|
return;
|
|
}
|
|
|
|
if (!_model) {
|
|
_model = boost::shared_ptr<MidiModel> (new MidiModel (shared_from_this ()));
|
|
} else {
|
|
_model->clear();
|
|
}
|
|
|
|
invalidate(lock);
|
|
|
|
if (writable() && !_open) {
|
|
return;
|
|
}
|
|
|
|
_model->start_write();
|
|
Evoral::SMF::seek_to_start();
|
|
|
|
uint64_t time = 0; /* in SMF ticks */
|
|
Evoral::Event<Evoral::Beats> ev;
|
|
|
|
uint32_t scratch_size = 0; // keep track of scratch and minimize reallocs
|
|
|
|
uint32_t delta_t = 0;
|
|
uint32_t size = 0;
|
|
uint8_t* buf = NULL;
|
|
int ret;
|
|
gint event_id;
|
|
bool have_event_id;
|
|
|
|
// TODO simplify event allocation
|
|
std::list< std::pair< Evoral::Event<Evoral::Beats>*, gint > > eventlist;
|
|
|
|
for (unsigned i = 1; i <= num_tracks(); ++i) {
|
|
if (seek_to_track(i)) continue;
|
|
|
|
time = 0;
|
|
have_event_id = false;
|
|
|
|
while ((ret = read_event (&delta_t, &size, &buf, &event_id)) >= 0) {
|
|
|
|
time += delta_t;
|
|
|
|
if (ret == 0) {
|
|
/* meta-event : did we get an event ID ? */
|
|
if (event_id >= 0) {
|
|
have_event_id = true;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (ret > 0) {
|
|
/* not a meta-event */
|
|
|
|
if (!have_event_id) {
|
|
event_id = Evoral::next_event_id();
|
|
}
|
|
const Evoral::Beats event_time = Evoral::Beats::ticks_at_rate(time, ppqn());
|
|
#ifndef NDEBUG
|
|
std::string ss;
|
|
|
|
for (uint32_t xx = 0; xx < size; ++xx) {
|
|
char b[8];
|
|
snprintf (b, sizeof (b), "0x%x ", buf[xx]);
|
|
ss += b;
|
|
}
|
|
|
|
DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF %7 load model delta %1, time %2, size %3 buf %4, id %6\n",
|
|
delta_t, time, size, ss, event_id, name()));
|
|
#endif
|
|
|
|
eventlist.push_back(make_pair (
|
|
new Evoral::Event<Evoral::Beats> (
|
|
Evoral::MIDI_EVENT, event_time,
|
|
size, buf, true)
|
|
, event_id));
|
|
|
|
// Set size to max capacity to minimize allocs in read_event
|
|
scratch_size = std::max(size, scratch_size);
|
|
size = scratch_size;
|
|
|
|
_length_beats = max(_length_beats, event_time);
|
|
}
|
|
|
|
/* event ID's must immediately precede the event they are for */
|
|
have_event_id = false;
|
|
}
|
|
}
|
|
|
|
eventlist.sort(compare_eventlist);
|
|
|
|
std::list< std::pair< Evoral::Event<Evoral::Beats>*, gint > >::iterator it;
|
|
for (it=eventlist.begin(); it!=eventlist.end(); ++it) {
|
|
_model->append (*it->first, it->second);
|
|
delete it->first;
|
|
}
|
|
|
|
// cerr << "----SMF-SRC-----\n";
|
|
// _playback_buf->dump (cerr);
|
|
// cerr << "----------------\n";
|
|
|
|
_model->end_write (Evoral::Sequence<Evoral::Beats>::ResolveStuckNotes, _length_beats);
|
|
_model->set_edited (false);
|
|
invalidate(lock);
|
|
|
|
free(buf);
|
|
}
|
|
|
|
void
|
|
SMFSource::destroy_model (const Glib::Threads::Mutex::Lock& lock)
|
|
{
|
|
//cerr << _name << " destroying model " << _model.get() << endl;
|
|
_model.reset();
|
|
invalidate(lock);
|
|
}
|
|
|
|
void
|
|
SMFSource::flush_midi (const Lock& lock)
|
|
{
|
|
if (!writable() || _length_beats == 0.0) {
|
|
return;
|
|
}
|
|
|
|
ensure_disk_file (lock);
|
|
|
|
Evoral::SMF::end_write (_path);
|
|
/* data in the file means its no longer removable */
|
|
mark_nonremovable ();
|
|
|
|
invalidate(lock);
|
|
}
|
|
|
|
void
|
|
SMFSource::set_path (const string& p)
|
|
{
|
|
FileSource::set_path (p);
|
|
}
|
|
|
|
/** Ensure that this source has some file on disk, even if it's just a SMF header */
|
|
void
|
|
SMFSource::ensure_disk_file (const Lock& lock)
|
|
{
|
|
if (!writable()) {
|
|
return;
|
|
}
|
|
|
|
if (_model) {
|
|
/* We have a model, so write it to disk; see MidiSource::session_saved
|
|
for an explanation of what we are doing here.
|
|
*/
|
|
boost::shared_ptr<MidiModel> mm = _model;
|
|
_model.reset ();
|
|
mm->sync_to_source (lock);
|
|
_model = mm;
|
|
invalidate(lock);
|
|
} else {
|
|
/* No model; if it's not already open, it's an empty source, so create
|
|
and open it for writing.
|
|
*/
|
|
if (!_open) {
|
|
open_for_write ();
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
SMFSource::prevent_deletion ()
|
|
{
|
|
/* Unlike the audio case, the MIDI file remains mutable (because we can
|
|
edit MIDI data)
|
|
*/
|
|
|
|
_flags = Flag (_flags & ~(Removable|RemovableIfEmpty|RemoveAtDestroy));
|
|
}
|