/*
- Copyright (C) 2006 Paul Davis
- Written by Dave Robillard, 2006
+ Copyright (C) 2006 Paul Davis
+ Author: David Robillard
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <unistd.h>
#include <errno.h>
-#include <pbd/mountpoint.h>
-#include <pbd/pathscanner.h>
-#include <pbd/stl_delete.h>
-#include <pbd/strsplit.h>
+#include "pbd/mountpoint.h"
+#include "pbd/pathscanner.h"
+#include "pbd/stl_delete.h"
+#include "pbd/strsplit.h"
#include <glibmm/miscutils.h>
-#include <ardour/smf_source.h>
-#include <ardour/session.h>
-#include <ardour/midi_ring_buffer.h>
-#include <ardour/midi_util.h>
-#include <ardour/tempo.h>
-#include <ardour/audioengine.h>
-#include <ardour/smf_reader.h>
-#include <ardour/event_type_map.h>
+#include "evoral/Control.hpp"
+
+#include "ardour/audioengine.h"
+#include "ardour/event_type_map.h"
+#include "ardour/midi_model.h"
+#include "ardour/midi_ring_buffer.h"
+#include "ardour/midi_state_tracker.h"
+#include "ardour/session.h"
+#include "ardour/smf_source.h"
+#include "ardour/debug.h"
#include "i18n.h"
using namespace ARDOUR;
-
-string SMFSource::_search_path;
-
-/*sigc::signal<void,struct tm*, time_t> SMFSource::HeaderPositionOffsetChanged;
-bool SMFSource::header_position_negative;
-uint64_t SMFSource::header_position_offset;
-*/
-
-SMFSource::SMFSource (Session& s, std::string path, Flag flags)
- : MidiSource (s, region_name_from_path(path, false))
- , _flags (Flag(flags | Writable)) // FIXME: this needs to be writable for now
- , _allow_remove_if_empty(true)
- , _fd (0)
- , _last_ev_time(0)
- , _track_size(4) // 4 bytes for the ever-present EOT event
- , _header_size(22)
- , _empty(true)
-{
- /* constructor used for new internal-to-session files. file cannot exist */
-
- if (init (path, false)) {
- throw failed_constructor ();
- }
-
- if (open()) {
+using namespace Glib;
+using namespace PBD;
+
+/** Constructor used for new internal-to-session files. File cannot exist. */
+SMFSource::SMFSource (Session& s, const string& path, Source::Flag flags)
+ : Source(s, DataType::MIDI, path, flags)
+ , MidiSource(s, path, flags)
+ , FileSource(s, DataType::MIDI, path, string(), flags)
+ , Evoral::SMF()
+ , _last_ev_time_beats(0.0)
+ , _last_ev_time_frames(0)
+ , _smf_last_read_end (0)
+ , _smf_last_read_time (0)
+{
+ /* note that origin remains empty */
+
+ if (init(_path, false)) {
throw failed_constructor ();
}
- assert(_name.find("/") == string::npos);
+ /* file is not opened until write */
}
-SMFSource::SMFSource (Session& s, const XMLNode& node)
- : MidiSource (s, node)
- , _flags (Flag (Writable|CanRename))
- , _allow_remove_if_empty(true)
- , _fd (0)
- , _last_ev_time(0)
- , _track_size(4) // 4 bytes for the ever-present EOT event
- , _header_size(22)
- , _empty(true)
+/** Constructor used for existing internal-to-session files. */
+SMFSource::SMFSource (Session& s, const XMLNode& node, bool must_exist)
+ : Source(s, node)
+ , MidiSource(s, node)
+ , FileSource(s, node, must_exist)
+ , _last_ev_time_beats(0.0)
+ , _last_ev_time_frames(0)
+ , _smf_last_read_end (0)
+ , _smf_last_read_time (0)
{
- /* constructor used for existing internal-to-session files. file must exist */
-
- if (set_state (node)) {
+ if (set_state(node, Stateful::loading_state_version)) {
throw failed_constructor ();
}
-
- if (init (_name, true)) {
+
+ if (init(_path, true)) {
throw failed_constructor ();
}
-
- if (open()) {
+
+ if (open(_path)) {
throw failed_constructor ();
}
-
- assert(_name.find("/") == string::npos);
+
+ _open = true;
}
SMFSource::~SMFSource ()
}
}
-bool
-SMFSource::removable () const
-{
- return (_flags & Removable) && ((_flags & RemoveAtDestroy) ||
- ((_flags & RemovableIfEmpty) && is_empty()));
-}
-
int
-SMFSource::init (string pathstr, bool must_exist)
+SMFSource::open_for_write ()
{
- bool is_new = false;
-
- if (!find (pathstr, must_exist, is_new)) {
- cerr << "cannot find " << pathstr << " with me = " << must_exist << endl;
- return -1;
- }
-
- if (is_new && must_exist) {
- return -1;
- }
-
- assert(_name.find("/") == string::npos);
- return 0;
+ if (create (_path)) {
+ return -1;
+ }
+ _open = true;
+ return 0;
}
-/** Attempt to open the SMF file for reading and writing.
- *
- * Currently SMFSource is always read/write.
- *
- * \return 0 on success
- * -1 if the file can not be opened for reading,
- * -2 if the file can not be opened for writing
- */
-int
-SMFSource::open()
-{
- //cerr << "Opening SMF file " << path() << " writeable: " << writable() << endl;
-
- assert(writable()); // FIXME;
-
- _fd = fopen(path().c_str(), "r+");
-
- // File already exists
- if (_fd) {
- fseek(_fd, _header_size - 4, 0);
- uint32_t track_size_be = 0;
- fread(&track_size_be, 4, 1, _fd);
- _track_size = GUINT32_FROM_BE(track_size_be);
- _empty = _track_size > 4;
- //cerr << "SMF - read track size " << _track_size << endl;
-
- // We're making a new file
- } else {
- _fd = fopen(path().c_str(), "w+");
- if (_fd == NULL) {
- cerr << "ERROR: Can not open SMF file " << path() << " for writing: " <<
- strerror(errno) << endl;
- return -2;
- }
- _track_size = 4;
- _empty = true;
-
- // Write a tentative header just to pad things out so writing happens in the right spot
- flush_header();
- flush_footer();
- }
-
- return (_fd == 0) ? -1 : 0;
-}
-
-void
-SMFSource::close()
-{
- if (_fd) {
- flush_header();
- flush_footer();
- fclose(_fd);
- _fd = NULL;
- }
-}
-
-void
-SMFSource::seek_to_footer_position()
-{
- uint8_t buffer[4];
-
- // lets check if there is a track end marker at the end of the data
- fseek(_fd, -4, SEEK_END);
- //cerr << "SMFSource::seek_to_footer_position: At position: " << ftell(_fd);
- size_t read_bytes = fread(buffer, sizeof(uint8_t), 4, _fd);
- /*cerr << " read size: " << read_bytes << " buffer: ";
- for (size_t i=0; i < read_bytes; ++i) {
- printf("%x ", buffer[i]);
- }
- printf("\n");
- */
-
- if( (read_bytes == 4) &&
- buffer[0] == 0x00 &&
- buffer[1] == 0xFF &&
- buffer[2] == 0x2F &&
- buffer[3] == 0x00) {
- // there is one, so overwrite it
- fseek(_fd, -4, SEEK_END);
- } else {
- // there is none, so append
- fseek(_fd, 0, SEEK_END);
- }
-}
-
-int
-SMFSource::flush_header()
-{
- // FIXME: write timeline position somehow?
-
- //cerr << path() << " SMF Flushing header\n";
-
- assert(_fd);
-
- const uint16_t type = GUINT16_TO_BE(0); // SMF Type 0 (single track)
- const uint16_t ntracks = GUINT16_TO_BE(1); // Number of tracks (always 1 for Type 0)
- const uint16_t division = GUINT16_TO_BE(_ppqn); // Pulses per quarter note (beat)
-
- char data[6];
- memcpy(data, &type, 2);
- memcpy(data+2, &ntracks, 2);
- memcpy(data+4, &division, 2);
-
- _fd = freopen(path().c_str(), "r+", _fd);
- assert(_fd);
- fseek(_fd, 0, SEEK_SET);
- write_chunk("MThd", 6, data);
- write_chunk_header("MTrk", _track_size);
-
- fflush(_fd);
-
- return 0;
-}
-
-int
-SMFSource::flush_footer()
-{
- //cerr << path() << " SMF Flushing footer\n";
- seek_to_footer_position();
- write_footer();
- seek_to_footer_position();
-
- return 0;
-}
-
-void
-SMFSource::write_footer()
-{
- write_var_len(0);
- char eot[3] = { 0xFF, 0x2F, 0x00 }; // end-of-track meta-event
- fwrite(eot, 1, 3, _fd);
- fflush(_fd);
-}
-
-/** Returns the offset of the first event in the file with a time past @a start,
- * relative to the start of the source.
- *
- * Returns -1 if not found.
- */
-/*
-long
-SMFSource::find_first_event_after(nframes_t start)
+/** All stamps in audio frames */
+framecnt_t
+SMFSource::read_unlocked (Evoral::EventSink<framepos_t>& destination, framepos_t const source_start,
+ framepos_t start, framecnt_t duration,
+ MidiStateTracker* tracker) const
{
- // FIXME: obviously this is slooow
-
- fseek(_fd, _header_size, 0);
-
- while ( ! feof(_fd) ) {
- const uint32_t delta_time = read_var_len();
+ int ret = 0;
+ uint64_t time = 0; // in SMF ticks, 1 tick per _ppqn
- if (delta_time > start)
- return delta_time;
- }
+ if (writable() && !_open) {
+ /* nothing to read since nothing has ben written */
+ return duration;
+ }
- return -1;
-}
-*/
+ DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: start %1 duration %2\n", start, duration));
-/** Read an event from the current position in file.
- *
- * File position MUST be at the beginning of a delta time, or this will die very messily.
- * ev.buffer must be of size ev.size, and large enough for the event. The returned event
- * will have it's time field set to it's delta time, in SMF tempo-based ticks, using the
- * rate given by ppqn() (it is the caller's responsibility to calculate a real time).
- *
- * \a size should be the capacity of \a buf. If it is not large enough, \a buf will
- * be freed and a new buffer allocated in its place, the size of which will be placed
- * in size.
- *
- * Returns event length (including status byte) on success, 0 if event was
- * skipped (eg a meta event), or -1 on EOF (or end of track).
- */
-int
-SMFSource::read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const
-{
- if (feof(_fd)) {
- return -1;
- }
+ _read_data_count = 0;
- assert(delta_t);
- assert(size);
- assert(buf);
+ // Output parameters for read_event (which will allocate scratch in buffer as needed)
+ uint32_t ev_delta_t = 0;
+ uint32_t ev_type = 0;
+ uint32_t ev_size = 0;
+ uint8_t* ev_buffer = 0;
- try {
- *delta_t = SMFReader::read_var_len(_fd);
- } catch (...) {
- return -1; // Premature EOF
- }
-
- if (feof(_fd)) {
- return -1; // Premature EOF
- }
+ size_t scratch_size = 0; // keep track of scratch to minimize reallocs
- const int status = fgetc(_fd);
+ BeatsFramesConverter converter(_session.tempo_map(), source_start);
- if (status == EOF) {
- return -1; // Premature EOF
- }
+ const uint64_t start_ticks = (uint64_t)(converter.from(start) * ppqn());
+ DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: start in ticks %1\n", start_ticks));
- //printf("Status @ %X = %X\n", (unsigned)ftell(_fd) - 1, status);
+ if (_smf_last_read_end == 0 || start != _smf_last_read_end) {
+ DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: seek to %1\n", start));
+ Evoral::SMF::seek_to_start();
+ while (time < start_ticks) {
+ gint ignored;
- if (status == 0xFF) {
- if (feof(_fd)) {
- return -1; // Premature EOF
- }
- const int type = fgetc(_fd);
- if ((unsigned char)type == 0x2F) {
- return -1; // hit end of track
- } else {
- *size = 0;
- return 0;
+ ret = read_event(&ev_delta_t, &ev_size, &ev_buffer, &ignored);
+ if (ret == -1) { // EOF
+ _smf_last_read_end = start + duration;
+ return duration;
+ }
+ time += ev_delta_t; // accumulate delta time
}
+ } else {
+ DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked: set time to %1\n", _smf_last_read_time));
+ time = _smf_last_read_time;
}
-
- const int event_size = midi_event_size((unsigned char)status) + 1;
- if (event_size <= 0) {
- *size = 0;
- return 0;
- }
-
- // Make sure we have enough scratch buffer
- if (*size < (unsigned)event_size)
- *buf = (uint8_t*)realloc(*buf, event_size);
-
- *size = event_size;
-
- (*buf)[0] = (unsigned char)status;
- if (event_size > 1)
- fread((*buf) + 1, 1, *size - 1, _fd);
-
- /*printf("SMFSource %s read event: delta = %u, size = %u, data = ", _name.c_str(), *delta_t, *size);
- for (size_t i=0; i < *size; ++i) {
- printf("%X ", (*buf)[i]);
- }
- printf("\n");*/
-
- return (int)*size;
-}
-
-/** All stamps in audio frames */
-nframes_t
-SMFSource::read_unlocked (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset, nframes_t negative_stamp_offset) const
-{
- //cerr << "SMF read_unlocked " << name() << " read " << start << ", count=" << cnt << ", offset=" << stamp_offset << endl;
-
- // 64 bits ought to be enough for anybody
- uint64_t time = 0; // in SMF ticks, 1 tick per _ppqn
-
- _read_data_count = 0;
- // Output parameters for read_event (which will allocate scratch in buffer as needed)
- uint32_t ev_delta_t = 0;
- uint32_t ev_type = 0;
- uint32_t ev_size = 0;
- uint8_t* ev_buffer = 0;
+ _smf_last_read_end = start + duration;
- size_t scratch_size = 0; // keep track of scratch to minimize reallocs
+ while (true) {
+ gint ignored; /* XXX don't ignore note id's ??*/
- // FIXME: don't seek to start and search every read (brutal!)
- fseek(_fd, _header_size, SEEK_SET);
-
- // FIXME: assumes tempo never changes after start
- const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
- _session.engine().frame_rate(),
- _session.tempo_map().meter_at(_timeline_position));
-
- const uint64_t start_ticks = (uint64_t)((start / frames_per_beat) * _ppqn);
-
- while (!feof(_fd)) {
- int ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
+ ret = read_event(&ev_delta_t, &ev_size, &ev_buffer, &ignored);
if (ret == -1) { // EOF
- //cerr << "SMF - EOF\n";
break;
}
-
- ev_type = EventTypeMap::instance().midi_event_type(ev_buffer[0]);
-
+
time += ev_delta_t; // accumulate delta time
+ _smf_last_read_time = time;
if (ret == 0) { // meta-event (skipped, just accumulate time)
- //cerr << "SMF - META\n";
continue;
}
- if (time >= start_ticks) {
- const nframes_t ev_frame_time = (nframes_t)(
- ((time / (double)_ppqn) * frames_per_beat)) + stamp_offset;
+ ev_type = EventTypeMap::instance().midi_event_type(ev_buffer[0]);
+
+ DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF read_unlocked delta %1, time %2, buf[0] %3, type %4\n",
+ ev_delta_t, time, ev_buffer[0], ev_type));
+
+ assert(time >= start_ticks);
+
+ /* Note that we add on the source start time (in session frames) here so that ev_frame_time
+ is in session frames.
+ */
+ const framepos_t ev_frame_time = converter.to(time / (double)ppqn()) + source_start;
+
+ if (ev_frame_time < start + duration) {
+ destination.write (ev_frame_time, ev_type, ev_size, ev_buffer);
- if (ev_frame_time <= start + cnt)
- dst.write(ev_frame_time - negative_stamp_offset, ev_type, ev_size, ev_buffer);
- else
- break;
+ if (tracker) {
+ if (ev_buffer[0] & MIDI_CMD_NOTE_ON) {
+ tracker->add (ev_buffer[1], ev_buffer[0] & 0xf);
+ } else if (ev_buffer[0] & MIDI_CMD_NOTE_OFF) {
+ tracker->remove (ev_buffer[1], ev_buffer[0] & 0xf);
+ }
+ }
+ } else {
+ break;
}
_read_data_count += ev_size;
- if (ev_size > scratch_size)
+ if (ev_size > scratch_size) {
scratch_size = ev_size;
- else
- ev_size = scratch_size; // minimize realloc in read_event
+ }
+ ev_size = scratch_size; // ensure read_event only allocates if necessary
}
-
- return cnt;
+
+ return duration;
}
-/** All stamps in audio frames */
-nframes_t
-SMFSource::write_unlocked (MidiRingBuffer& src, nframes_t cnt)
+/** Write data to this source from a MidiRingBuffer.
+ * @param source Buffer to read from.
+ * @param position This source's start position in session frames.
+ */
+framecnt_t
+SMFSource::write_unlocked (MidiRingBuffer<framepos_t>& source, framepos_t position, framecnt_t duration)
{
+ if (!_writing) {
+ mark_streaming_write_started ();
+ }
+
_write_data_count = 0;
-
- EventTime time;
- EventType type;
- uint32_t size;
-
- size_t buf_capacity = 4;
- uint8_t* buf = (uint8_t*)malloc(buf_capacity);
-
- if (_model && ! _model->writing())
+
+ framepos_t time;
+ Evoral::EventType type;
+ uint32_t size;
+
+ size_t buf_capacity = 4;
+ uint8_t* buf = (uint8_t*)malloc(buf_capacity);
+
+ if (_model && ! _model->writing()) {
_model->start_write();
+ }
+
+ Evoral::MIDIEvent<framepos_t> ev;
- Evoral::MIDIEvent ev(0, 0.0, 4, NULL, true);
+ cerr << "SMFSource::write unlocked, begins writing from src buffer\n";
while (true) {
- bool ret = src.peek_time(&time);
- if (!ret || time - _timeline_position > _length + cnt)
+ bool ret = source.peek ((uint8_t*)&time, sizeof (time));
+ if (!ret || time > _last_write_end + duration) {
+ DEBUG_TRACE (DEBUG::MidiIO, string_compose ("SMFSource::write_unlocked: dropping event @ %1 because ret %4 or it is later than %2 + %3\n",
+ time, _last_write_end, duration, ret));
break;
+ }
- ret = src.read_prefix(&time, &type, &size);
- if (!ret)
+ ret = source.read_prefix(&time, &type, &size);
+ if (!ret) {
+ cerr << "ERROR: Unable to read event prefix, corrupt MIDI ring buffer" << endl;
break;
+ }
if (size > buf_capacity) {
buf_capacity = size;
buf = (uint8_t*)realloc(buf, size);
}
- ret = src.read_contents(size, buf);
+ ret = source.read_contents(size, buf);
if (!ret) {
cerr << "ERROR: Read time/size but not buffer, corrupt MIDI ring buffer" << endl;
break;
}
-
- assert(time >= _timeline_position);
- time -= _timeline_position;
-
+
+ /* convert from session time to time relative to the source start */
+ assert(time >= position);
+ time -= position;
+
ev.set(buf, size, time);
ev.set_event_type(EventTypeMap::instance().midi_event_type(ev.buffer()[0]));
- if (! (ev.is_channel_event() || ev.is_smf_meta_event() || ev.is_sysex()) ) {
- //cerr << "SMFSource: WARNING: caller tried to write non SMF-Event of type " << std::hex << int(ev.buffer()[0]) << endl;
+ ev.set_id (Evoral::next_event_id());
+
+ if (!(ev.is_channel_event() || ev.is_smf_meta_event() || ev.is_sysex())) {
+ /*cerr << "SMFSource: WARNING: caller tried to write non SMF-Event of type "
+ << std::hex << int(ev.buffer()[0]) << endl;*/
continue;
}
-
- append_event_unlocked(Frames, ev);
- if (_model)
- _model->append(ev);
+ cerr << "SMFSource:: calling append_event_unlocked_frames()\n";
+ append_event_unlocked_frames(ev, position);
}
- fflush(_fd);
- free(buf);
-
- const nframes_t oldlen = _length;
- update_length(oldlen, cnt);
+ Evoral::SMF::flush();
+ free (buf);
- ViewDataRangeReady (_timeline_position + oldlen, cnt); /* EMIT SIGNAL */
-
- return cnt;
+ return duration;
}
-
+
+/** Append an event with a timestamp in beats (double) */
void
-SMFSource::append_event_unlocked(EventTimeUnit unit, const Evoral::Event& ev)
+SMFSource::append_event_unlocked_beats (const Evoral::Event<double>& ev)
{
- if (ev.size() == 0)
+ assert(_writing);
+ if (ev.size() == 0) {
return;
-
- /*printf("SMFSource: %s - append_event_unlocked chan = %u, time = %lf, size = %u, data = ",
- name().c_str(), (unsigned)ev.channel(), ev.time(), ev.size());
- for (size_t i=0; i < ev.size(); ++i) {
- printf("%X ", ev.buffer()[i]);
}
- printf("\n");*/
-
+
+ /*printf("SMFSource: %s - append_event_unlocked_beats ID = %d time = %lf, size = %u, data = ",
+ name().c_str(), ev.id(), ev.time(), ev.size());
+ for (size_t i = 0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");*/
+
assert(ev.time() >= 0);
-
- if (ev.time() < _last_ev_time) {
- cerr << "SMFSource: Warning: Skipping event with ev.time() < _last_ev_time" << endl;
+ if (ev.time() < _last_ev_time_beats) {
+ cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
return;
}
-
- uint32_t delta_time = 0;
-
- if (unit == Frames) {
- // FIXME: assumes tempo never changes after start
- const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
- _session.engine().frame_rate(),
- _session.tempo_map().meter_at(_timeline_position));
-
- delta_time = (uint32_t)((ev.time() - _last_ev_time) / frames_per_beat * _ppqn);
+
+ Evoral::event_id_t event_id;
+
+ if (ev.id() < 0) {
+ event_id = Evoral::next_event_id();
} else {
- assert(unit == Beats);
- delta_time = (uint32_t)((ev.time() - _last_ev_time) * _ppqn);
+ event_id = ev.id();
}
-
- const size_t stamp_size = write_var_len(delta_time);
- fwrite(ev.buffer(), 1, ev.size(), _fd);
+ if (_model) {
+ _model->append (ev, event_id);
+ }
- _track_size += stamp_size + ev.size();
- _write_data_count += ev.size();
- _last_ev_time = ev.time();
+ _length_beats = max(_length_beats, ev.time());
- if (ev.size() > 0)
- _empty = false;
-}
+ const double delta_time_beats = ev.time() - _last_ev_time_beats;
+ const uint32_t delta_time_ticks = (uint32_t)lrint(delta_time_beats * (double)ppqn());
+ Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer(), event_id);
+ _last_ev_time_beats = ev.time();
+
+ _write_data_count += ev.size();
-XMLNode&
-SMFSource::get_state ()
-{
- XMLNode& root (MidiSource::get_state());
- char buf[16];
- snprintf (buf, sizeof (buf), "0x%x", (int)_flags);
- root.add_property ("flags", buf);
- return root;
}
-int
-SMFSource::set_state (const XMLNode& node)
+/** Append an event with a timestamp in frames (framepos_t) */
+void
+SMFSource::append_event_unlocked_frames (const Evoral::Event<framepos_t>& ev, framepos_t position)
{
- const XMLProperty* prop;
-
- if (MidiSource::set_state (node)) {
- return -1;
+ assert(_writing);
+ if (ev.size() == 0) {
+ cerr << "SMFSource: asked to append zero-size event\n";
+ return;
}
- if ((prop = node.property (X_("flags"))) != 0) {
-
- int ival;
- sscanf (prop->value().c_str(), "0x%x", &ival);
- _flags = Flag (ival);
+ /* printf("SMFSource: %s - append_event_unlocked_frames ID = %d time = %u, size = %u, data = ",
+ name().c_str(), ev.id(), ev.time(), ev.size());
+ for (size_t i=0; i < ev.size(); ++i) printf("%X ", ev.buffer()[i]); printf("\n");*/
- } else {
+ if (ev.time() < _last_ev_time_frames) {
+ cerr << "SMFSource: Warning: Skipping event with non-monotonic time" << endl;
+ return;
+ }
- _flags = Flag (0);
+ BeatsFramesConverter converter(_session.tempo_map(), position);
+ const double ev_time_beats = converter.from(ev.time());
+ Evoral::event_id_t event_id;
+ if (ev.id() < 0) {
+ event_id = Evoral::next_event_id();
+ } else {
+ event_id = ev.id();
}
- assert(_name.find("/") == string::npos);
+ if (_model) {
+ const Evoral::Event<double> beat_ev (ev.event_type(),
+ ev_time_beats,
+ ev.size(),
+ (uint8_t*)ev.buffer());
+ _model->append (beat_ev, event_id);
+ }
- return 0;
-}
+ _length_beats = max(_length_beats, ev_time_beats);
-void
-SMFSource::mark_for_remove ()
-{
- if (!writable()) {
- return;
- }
- _flags = Flag (_flags | RemoveAtDestroy);
-}
+ const framepos_t delta_time_frames = ev.time() - _last_ev_time_frames;
+ const double delta_time_beats = converter.from(delta_time_frames);
+ const uint32_t delta_time_ticks = (uint32_t)(lrint(delta_time_beats * (double)ppqn()));
-void
-SMFSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame)
-{
- MidiSource::mark_streaming_midi_write_started (mode, start_frame);
- _last_ev_time = 0;
- fseek(_fd, _header_size, SEEK_SET);
-}
+ Evoral::SMF::append_event_delta(delta_time_ticks, ev.size(), ev.buffer(), event_id);
+ _last_ev_time_frames = ev.time();
-void
-SMFSource::mark_streaming_write_completed ()
-{
- MidiSource::mark_streaming_write_completed();
+ _write_data_count += ev.size();
- if (!writable()) {
- return;
- }
-
- _model->set_edited(false);
- flush_header();
- flush_footer();
}
-void
-SMFSource::mark_take (string id)
+XMLNode&
+SMFSource::get_state ()
{
- if (writable()) {
- _take_id = id;
- }
+ XMLNode& node = MidiSource::get_state();
+ node.add_property (X_("origin"), _origin);
+ return node;
}
int
-SMFSource::move_to_trash (const string trash_dir_name)
+SMFSource::set_state (const XMLNode& node, int version)
{
- string newpath;
-
- if (!writable()) {
+ if (Source::set_state (node, version)) {
return -1;
}
- /* don't move the file across filesystems, just
- stick it in the 'trash_dir_name' directory
- on whichever filesystem it was already on.
- */
-
- newpath = Glib::path_get_dirname (_path);
- newpath = Glib::path_get_dirname (newpath);
-
- newpath += '/';
- newpath += trash_dir_name;
- newpath += '/';
- newpath += Glib::path_get_basename (_path);
+ if (MidiSource::set_state (node, version)) {
+ return -1;
+ }
- if (access (newpath.c_str(), F_OK) == 0) {
+ if (FileSource::set_state (node, version)) {
+ return -1;
+ }
- /* the new path already exists, try versioning */
-
- char buf[PATH_MAX+1];
- int version = 1;
- string newpath_v;
+ return 0;
+}
- snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), version);
- newpath_v = buf;
+void
+SMFSource::mark_streaming_midi_write_started (NoteMode mode)
+{
+ /* CALLER MUST HOLD LOCK */
- while (access (newpath_v.c_str(), F_OK) == 0 && version < 999) {
- snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), ++version);
- newpath_v = buf;
- }
-
- if (version == 999) {
- PBD::error << string_compose (_("there are already 1000 files with names like %1; versioning discontinued"),
- newpath)
- << endmsg;
- } else {
- newpath = newpath_v;
- }
+ 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;
+ }
- } else {
+ MidiSource::mark_streaming_midi_write_started (mode);
+ Evoral::SMF::begin_write ();
+ _last_ev_time_beats = 0.0;
+ _last_ev_time_frames = 0;
+}
- /* it doesn't exist, or we can't read it or something */
+void
+SMFSource::mark_streaming_write_completed ()
+{
+ Glib::Mutex::Lock lm (_lock);
+ MidiSource::mark_streaming_write_completed();
+ if (!writable()) {
+ return;
}
- if (::rename (_path.c_str(), newpath.c_str()) != 0) {
- PBD::error << string_compose (_("cannot rename midi file source from %1 to %2 (%3)"),
- _path, newpath, strerror (errno))
- << endmsg;
- return -1;
- }
-#if 0
- if (::unlink (peakpath.c_str()) != 0) {
- PBD::error << string_compose (_("cannot remove peakfile %1 for %2 (%3)"),
- peakpath, _path, strerror (errno))
- << endmsg;
- /* try to back out */
- rename (newpath.c_str(), _path.c_str());
- return -1;
+ if (_model) {
+ _model->set_edited(false);
}
-
- _path = newpath;
- peakpath = "";
-#endif
- /* file can not be removed twice, since the operation is not idempotent */
- _flags = Flag (_flags & ~(RemoveAtDestroy|Removable|RemovableIfEmpty));
+ Evoral::SMF::end_write ();
- return 0;
+ /* data in the file now, not removable */
+
+ mark_nonremovable ();
}
bool
-SMFSource::safe_file_extension(const Glib::ustring& file)
+SMFSource::safe_midi_file_extension (const string& file)
{
- return (file.rfind(".mid") != Glib::ustring::npos);
+ return (file.rfind(".mid") != string::npos) || (file.rfind (".MID") != string::npos);
}
-// FIXME: Merge this with audiofilesource somehow (make a generic filesource?)
-bool
-SMFSource::find (string pathstr, bool must_exist, bool& isnew)
+void
+SMFSource::load_model (bool lock, bool force_reload)
{
- string::size_type pos;
- bool ret = false;
+ if (_writing) {
+ return;
+ }
- isnew = false;
+ boost::shared_ptr<Glib::Mutex::Lock> lm;
+ if (lock)
+ lm = boost::shared_ptr<Glib::Mutex::Lock>(new Glib::Mutex::Lock(_lock));
- /* clean up PATH:CHANNEL notation so that we are looking for the correct path */
+ if (_model && !force_reload) {
+ return;
+ }
- if ((pos = pathstr.find_last_of (':')) == string::npos) {
- pathstr = pathstr;
+ if (!_model) {
+ _model = boost::shared_ptr<MidiModel> (new MidiModel (shared_from_this ()));
} else {
- pathstr = pathstr.substr (0, pos);
+ _model->clear();
}
- if (pathstr[0] != '/') {
+ if (writable() && !_open) {
+ return;
+ }
- /* non-absolute pathname: find pathstr in search path */
+ _model->start_write();
+ Evoral::SMF::seek_to_start();
- vector<string> dirs;
- int cnt;
- string fullpath;
- string keeppath;
+ uint64_t time = 0; /* in SMF ticks */
+ Evoral::Event<double> ev;
- if (_search_path.length() == 0) {
- PBD::error << _("FileSource: search path not set") << endmsg;
- goto out;
- }
+ size_t scratch_size = 0; // keep track of scratch and minimize reallocs
- split (_search_path, dirs, ':');
+ uint32_t delta_t = 0;
+ uint32_t size = 0;
+ uint8_t* buf = NULL;
+ int ret;
+ gint event_id;
+ bool have_event_id = false;
- cnt = 0;
-
- for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
+ while ((ret = read_event (&delta_t, &size, &buf, &event_id)) >= 0) {
+
+ time += delta_t;
- fullpath = *i;
- if (fullpath[fullpath.length()-1] != '/') {
- fullpath += '/';
+ if (ret == 0) {
+
+ /* meta-event : did we get an event ID ?
+ */
+
+ if (event_id >= 0) {
+ have_event_id = true;
}
- fullpath += pathstr;
-
- if (access (fullpath.c_str(), R_OK) == 0) {
- keeppath = fullpath;
- ++cnt;
- }
+
+ continue;
}
- if (cnt > 1) {
+ if (ret > 0) {
- PBD::error << string_compose (_("FileSource: \"%1\" is ambigous when searching %2\n\t"), pathstr, _search_path) << endmsg;
- goto out;
+ /* not a meta-event */
- } else if (cnt == 0) {
+ ev.set (buf, size, time / (double)ppqn());
+ ev.set_event_type(EventTypeMap::instance().midi_event_type(buf[0]));
- if (must_exist) {
- PBD::error << string_compose(_("Filesource: cannot find required file (%1): while searching %2"), pathstr, _search_path) << endmsg;
- goto out;
- } else {
- isnew = true;
+ if (!have_event_id) {
+ event_id = Evoral::next_event_id();
}
- }
-
- _name = pathstr;
- _path = keeppath;
- ret = true;
+#ifndef NDEBUG
+ std::string ss;
- } else {
-
- /* external files and/or very very old style sessions include full paths */
-
- _path = pathstr;
- _name = pathstr.substr (pathstr.find_last_of ('/') + 1);
-
- if (access (_path.c_str(), R_OK) != 0) {
-
- /* file does not exist or we cannot read it */
-
- if (must_exist) {
- PBD::error << string_compose(_("Filesource: cannot find required file (%1): %2"), _path, strerror (errno)) << endmsg;
- goto out;
- }
-
- if (errno != ENOENT) {
- PBD::error << string_compose(_("Filesource: cannot check for existing file (%1): %2"), _path, strerror (errno)) << endmsg;
- goto out;
+ for (uint32_t xx = 0; xx < size; ++xx) {
+ char b[8];
+ snprintf (b, sizeof (b), "0x%x ", buf[xx]);
+ ss += b;
}
-
- /* a new file */
- isnew = true;
- ret = true;
+ DEBUG_TRACE (DEBUG::MidiSourceIO, string_compose ("SMF %6 load model delta %1, time %2, size %3 buf %4, type %5\n",
+ delta_t, time, size, ss , ev.event_type(), name()));
+#endif
- } else {
-
- /* already exists */
-
- ret = true;
- }
- }
-
- out:
- return ret;
-}
-
-void
-SMFSource::set_search_path (string p)
-{
- _search_path = p;
-}
+ _model->append (ev, event_id);
+ if (ev.size() > scratch_size) {
+ scratch_size = ev.size();
+ }
-void
-SMFSource::set_allow_remove_if_empty (bool yn)
-{
- if (writable()) {
- _allow_remove_if_empty = yn;
- }
-}
+ ev.size() = scratch_size; // ensure read_event only allocates if necessary
-int
-SMFSource::set_source_name (string newname, bool destructive)
-{
- //Glib::Mutex::Lock lm (_lock); FIXME
- string oldpath = _path;
- string newpath = Session::change_midi_path_by_name (oldpath, _name, newname, destructive);
+ _length_beats = max(_length_beats, ev.time());
+ }
- if (newpath.empty()) {
- PBD::error << string_compose (_("programming error: %1"), "cannot generate a changed midi path") << endmsg;
- return -1;
- }
+ /* event ID's must immediately precede the event they are for
+ */
- if (rename (oldpath.c_str(), newpath.c_str()) != 0) {
- PBD::error << string_compose (_("cannot rename midi file for %1 to %2"), _name, newpath) << endmsg;
- return -1;
+ have_event_id = false;
}
- _name = Glib::path_get_basename (newpath);
- _path = newpath;
+ _model->end_write (_length_beats, false, true);
+ //_model->end_write (false);
+ _model->set_edited (false);
- return 0;//rename_peakfile (peak_path (_path));
-}
+ _model_iter = _model->begin();
-bool
-SMFSource::is_empty () const
-{
- return _empty;
+ free(buf);
}
-
void
-SMFSource::write_chunk_header(const char id[4], uint32_t length)
+SMFSource::destroy_model ()
{
- const uint32_t length_be = GUINT32_TO_BE(length);
-
- fwrite(id, 1, 4, _fd);
- fwrite(&length_be, 4, 1, _fd);
+ //cerr << _name << " destroying model " << _model.get() << endl;
+ _model.reset();
}
void
-SMFSource::write_chunk(const char id[4], uint32_t length, void* data)
-{
- write_chunk_header(id, length);
-
- fwrite(data, 1, length, _fd);
-}
-
-/** Returns the size (in bytes) of the value written. */
-size_t
-SMFSource::write_var_len(uint32_t value)
+SMFSource::flush_midi ()
{
- size_t ret = 0;
-
- uint32_t buffer = value & 0x7F;
-
- while ( (value >>= 7) ) {
- buffer <<= 8;
- buffer |= ((value & 0x7F) | 0x80);
- }
-
- while (true) {
- //printf("Writing var len byte %X\n", (unsigned char)buffer);
- ++ret;
- fputc(buffer, _fd);
- if (buffer & 0x80)
- buffer >>= 8;
- else
- break;
+ if (!writable() || (writable() && !_open)) {
+ return;
}
- return ret;
+ Evoral::SMF::end_write ();
+ /* data in the file means its no longer removable */
+ mark_nonremovable ();
}
void
-SMFSource::load_model(bool lock, bool force_reload)
+SMFSource::set_path (const string& p)
{
- if (_writing)
- return;
-
- if (lock)
- Glib::Mutex::Lock lm (_lock);
-
- if (_model && !force_reload && !_model->empty())
- return;
+ FileSource::set_path (p);
+ SMF::set_path (_path);
+}
- if (! _model) {
- _model = boost::shared_ptr<MidiModel>(new MidiModel(this));
- cerr << _name << " loaded new model " << _model.get() << endl;
+/** Ensure that this source has some file on disk, even if it's just a SMF header */
+void
+SMFSource::ensure_disk_file ()
+{
+ 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 ();
+ _model = mm;
} else {
- cerr << _name << " reloading model " << _model.get()
- << " (" << _model->n_notes() << " notes)" <<endl;
- _model->clear();
- }
-
- _model->start_write();
-
- fseek(_fd, _header_size, SEEK_SET);
-
- uint64_t time = 0; /* in SMF ticks */
- Evoral::Event ev;
-
- size_t scratch_size = 0; // keep track of scratch and minimize reallocs
-
- // FIXME: assumes tempo never changes after start
- const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
- _session.engine().frame_rate(),
- _session.tempo_map().meter_at(_timeline_position));
-
- uint32_t delta_t = 0;
- uint32_t size = 0;
- uint8_t* buf = NULL;
- int ret;
- while ((ret = read_event(&delta_t, &size, &buf)) >= 0) {
-
- ev.set(buf, size, 0.0);
- time += delta_t;
-
- if (ret > 0) { // didn't skip (meta) event
- // make ev.time absolute time in frames
- ev.time() = time * frames_per_beat / (EventTime)_ppqn;
- ev.set_event_type(EventTypeMap::instance().midi_event_type(buf[0]));
- _model->append(ev);
+ /* 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 ();
}
- if (ev.size() > scratch_size)
- scratch_size = ev.size();
- else
- ev.size() = scratch_size;
+ /* Flush, which will definitely put something on disk */
+ flush_midi ();
}
-
- _model->end_write(false);
- _model->set_edited(false);
-
- free(buf);
-}
-
-
-void
-SMFSource::destroy_model()
-{
- //cerr << _name << " destroying model " << _model.get() << endl;
- _model.reset();
}
projects / ardour.git / blobdiff