David Robillard
d357eca668
Anything related to the storage of events/values over a range of time lives in evoral. This includes MidiModel (Evoral::Sequence) and automation data (AutomationList (Evoral::ControlList), Automatable (Evoral::ControlSet), etc). libs/evoral synced with http://svn.drobilla.net/lad/trunk/evoral r1511. git-svn-id: svn://localhost/ardour2/branches/3.0@3754 d708f5d6-7413-0410-9779-e7cbd77b26cf
972 lines
21 KiB
C++
972 lines
21 KiB
C++
/*
|
|
Copyright (C) 2006 Paul Davis
|
|
Written by Dave Robillard, 2006
|
|
|
|
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
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
*/
|
|
|
|
#include <vector>
|
|
|
|
#include <sys/time.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <errno.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 "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()) {
|
|
throw failed_constructor ();
|
|
}
|
|
|
|
assert(_name.find("/") == string::npos);
|
|
}
|
|
|
|
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. file must exist */
|
|
|
|
if (set_state (node)) {
|
|
throw failed_constructor ();
|
|
}
|
|
|
|
if (init (_name, true)) {
|
|
throw failed_constructor ();
|
|
}
|
|
|
|
if (open()) {
|
|
throw failed_constructor ();
|
|
}
|
|
|
|
assert(_name.find("/") == string::npos);
|
|
}
|
|
|
|
SMFSource::~SMFSource ()
|
|
{
|
|
if (removable()) {
|
|
unlink (_path.c_str());
|
|
}
|
|
}
|
|
|
|
bool
|
|
SMFSource::removable () const
|
|
{
|
|
return (_flags & Removable) && ((_flags & RemoveAtDestroy) ||
|
|
((_flags & RemovableIfEmpty) && is_empty()));
|
|
}
|
|
|
|
int
|
|
SMFSource::init (string pathstr, bool must_exist)
|
|
{
|
|
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;
|
|
}
|
|
|
|
/** 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)
|
|
{
|
|
// FIXME: obviously this is slooow
|
|
|
|
fseek(_fd, _header_size, 0);
|
|
|
|
while ( ! feof(_fd) ) {
|
|
const uint32_t delta_time = read_var_len();
|
|
|
|
if (delta_time > start)
|
|
return delta_time;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
*/
|
|
|
|
/** 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;
|
|
}
|
|
|
|
assert(delta_t);
|
|
assert(size);
|
|
assert(buf);
|
|
|
|
try {
|
|
*delta_t = SMFReader::read_var_len(_fd);
|
|
} catch (...) {
|
|
return -1; // Premature EOF
|
|
}
|
|
|
|
if (feof(_fd)) {
|
|
return -1; // Premature EOF
|
|
}
|
|
|
|
const int status = fgetc(_fd);
|
|
|
|
if (status == EOF) {
|
|
return -1; // Premature EOF
|
|
}
|
|
|
|
//printf("Status @ %X = %X\n", (unsigned)ftell(_fd) - 1, status);
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
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_size = 0;
|
|
uint8_t* ev_buffer = 0;
|
|
|
|
size_t scratch_size = 0; // keep track of scratch to minimize reallocs
|
|
|
|
// 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);
|
|
if (ret == -1) { // EOF
|
|
//cerr << "SMF - EOF\n";
|
|
break;
|
|
}
|
|
|
|
time += ev_delta_t; // accumulate delta 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;
|
|
|
|
if (ev_frame_time <= start + cnt)
|
|
dst.write(ev_frame_time - negative_stamp_offset, ev_size, ev_buffer);
|
|
else
|
|
break;
|
|
}
|
|
|
|
_read_data_count += ev_size;
|
|
|
|
if (ev_size > scratch_size)
|
|
scratch_size = ev_size;
|
|
else
|
|
ev_size = scratch_size; // minimize realloc in read_event
|
|
}
|
|
|
|
return cnt;
|
|
}
|
|
|
|
/** All stamps in audio frames */
|
|
nframes_t
|
|
SMFSource::write_unlocked (MidiRingBuffer& src, nframes_t cnt)
|
|
{
|
|
_write_data_count = 0;
|
|
|
|
double time;
|
|
size_t size;
|
|
|
|
size_t buf_capacity = 4;
|
|
uint8_t* buf = (uint8_t*)malloc(buf_capacity);
|
|
|
|
if (_model && ! _model->writing())
|
|
_model->start_write();
|
|
|
|
Evoral::Event ev(0.0, 4, NULL, true);
|
|
|
|
while (true) {
|
|
bool ret = src.full_peek(sizeof(double), (uint8_t*)&time);
|
|
if (!ret || time - _timeline_position > _length + cnt)
|
|
break;
|
|
|
|
ret = src.read_prefix(&time, &size);
|
|
if (!ret)
|
|
break;
|
|
|
|
if (size > buf_capacity) {
|
|
buf_capacity = size;
|
|
buf = (uint8_t*)realloc(buf, size);
|
|
}
|
|
|
|
ret = src.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;
|
|
|
|
ev.set(buf, size, time);
|
|
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);
|
|
}
|
|
|
|
fflush(_fd);
|
|
free(buf);
|
|
|
|
const nframes_t oldlen = _length;
|
|
update_length(oldlen, cnt);
|
|
|
|
ViewDataRangeReady (_timeline_position + oldlen, cnt); /* EMIT SIGNAL */
|
|
|
|
return cnt;
|
|
}
|
|
|
|
|
|
void
|
|
SMFSource::append_event_unlocked(EventTimeUnit unit, const Evoral::Event& ev)
|
|
{
|
|
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");*/
|
|
|
|
assert(ev.time() >= 0);
|
|
|
|
if (ev.time() < _last_ev_time) {
|
|
cerr << "SMFSource: Warning: Skipping event with ev.time() < _last_ev_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);
|
|
} else {
|
|
assert(unit == Beats);
|
|
delta_time = (uint32_t)((ev.time() - _last_ev_time) * _ppqn);
|
|
}
|
|
|
|
|
|
const size_t stamp_size = write_var_len(delta_time);
|
|
fwrite(ev.buffer(), 1, ev.size(), _fd);
|
|
|
|
_track_size += stamp_size + ev.size();
|
|
_write_data_count += ev.size();
|
|
_last_ev_time = ev.time();
|
|
|
|
if (ev.size() > 0)
|
|
_empty = false;
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
const XMLProperty* prop;
|
|
|
|
if (MidiSource::set_state (node)) {
|
|
return -1;
|
|
}
|
|
|
|
if ((prop = node.property (X_("flags"))) != 0) {
|
|
|
|
int ival;
|
|
sscanf (prop->value().c_str(), "0x%x", &ival);
|
|
_flags = Flag (ival);
|
|
|
|
} else {
|
|
|
|
_flags = Flag (0);
|
|
|
|
}
|
|
|
|
assert(_name.find("/") == string::npos);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
SMFSource::mark_for_remove ()
|
|
{
|
|
if (!writable()) {
|
|
return;
|
|
}
|
|
_flags = Flag (_flags | RemoveAtDestroy);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
void
|
|
SMFSource::mark_streaming_write_completed ()
|
|
{
|
|
MidiSource::mark_streaming_write_completed();
|
|
|
|
if (!writable()) {
|
|
return;
|
|
}
|
|
|
|
_model->set_edited(false);
|
|
flush_header();
|
|
flush_footer();
|
|
}
|
|
|
|
void
|
|
SMFSource::mark_take (string id)
|
|
{
|
|
if (writable()) {
|
|
_take_id = id;
|
|
}
|
|
}
|
|
|
|
int
|
|
SMFSource::move_to_trash (const string trash_dir_name)
|
|
{
|
|
string newpath;
|
|
|
|
if (!writable()) {
|
|
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 (access (newpath.c_str(), F_OK) == 0) {
|
|
|
|
/* the new path already exists, try versioning */
|
|
|
|
char buf[PATH_MAX+1];
|
|
int version = 1;
|
|
string newpath_v;
|
|
|
|
snprintf (buf, sizeof (buf), "%s.%d", newpath.c_str(), version);
|
|
newpath_v = buf;
|
|
|
|
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;
|
|
}
|
|
|
|
} else {
|
|
|
|
/* it doesn't exist, or we can't read it or something */
|
|
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
_path = newpath;
|
|
peakpath = "";
|
|
#endif
|
|
/* file can not be removed twice, since the operation is not idempotent */
|
|
|
|
_flags = Flag (_flags & ~(RemoveAtDestroy|Removable|RemovableIfEmpty));
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool
|
|
SMFSource::safe_file_extension(const Glib::ustring& file)
|
|
{
|
|
return (file.rfind(".mid") != Glib::ustring::npos);
|
|
}
|
|
|
|
// FIXME: Merge this with audiofilesource somehow (make a generic filesource?)
|
|
bool
|
|
SMFSource::find (string pathstr, bool must_exist, bool& isnew)
|
|
{
|
|
string::size_type pos;
|
|
bool ret = false;
|
|
|
|
isnew = false;
|
|
|
|
/* clean up PATH:CHANNEL notation so that we are looking for the correct path */
|
|
|
|
if ((pos = pathstr.find_last_of (':')) == string::npos) {
|
|
pathstr = pathstr;
|
|
} else {
|
|
pathstr = pathstr.substr (0, pos);
|
|
}
|
|
|
|
if (pathstr[0] != '/') {
|
|
|
|
/* non-absolute pathname: find pathstr in search path */
|
|
|
|
vector<string> dirs;
|
|
int cnt;
|
|
string fullpath;
|
|
string keeppath;
|
|
|
|
if (_search_path.length() == 0) {
|
|
PBD::error << _("FileSource: search path not set") << endmsg;
|
|
goto out;
|
|
}
|
|
|
|
split (_search_path, dirs, ':');
|
|
|
|
cnt = 0;
|
|
|
|
for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
|
|
|
|
fullpath = *i;
|
|
if (fullpath[fullpath.length()-1] != '/') {
|
|
fullpath += '/';
|
|
}
|
|
fullpath += pathstr;
|
|
|
|
if (access (fullpath.c_str(), R_OK) == 0) {
|
|
keeppath = fullpath;
|
|
++cnt;
|
|
}
|
|
}
|
|
|
|
if (cnt > 1) {
|
|
|
|
PBD::error << string_compose (_("FileSource: \"%1\" is ambigous when searching %2\n\t"), pathstr, _search_path) << endmsg;
|
|
goto out;
|
|
|
|
} else if (cnt == 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;
|
|
}
|
|
}
|
|
|
|
_name = pathstr;
|
|
_path = keeppath;
|
|
ret = true;
|
|
|
|
} 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;
|
|
}
|
|
|
|
/* a new file */
|
|
|
|
isnew = true;
|
|
ret = true;
|
|
|
|
} else {
|
|
|
|
/* already exists */
|
|
|
|
ret = true;
|
|
}
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
SMFSource::set_search_path (string p)
|
|
{
|
|
_search_path = p;
|
|
}
|
|
|
|
|
|
void
|
|
SMFSource::set_allow_remove_if_empty (bool yn)
|
|
{
|
|
if (writable()) {
|
|
_allow_remove_if_empty = yn;
|
|
}
|
|
}
|
|
|
|
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);
|
|
|
|
if (newpath.empty()) {
|
|
PBD::error << string_compose (_("programming error: %1"), "cannot generate a changed midi path") << endmsg;
|
|
return -1;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
_name = Glib::path_get_basename (newpath);
|
|
_path = newpath;
|
|
|
|
return 0;//rename_peakfile (peak_path (_path));
|
|
}
|
|
|
|
bool
|
|
SMFSource::is_empty () const
|
|
{
|
|
return _empty;
|
|
}
|
|
|
|
|
|
void
|
|
SMFSource::write_chunk_header(const char id[4], uint32_t length)
|
|
{
|
|
const uint32_t length_be = GUINT32_TO_BE(length);
|
|
|
|
fwrite(id, 1, 4, _fd);
|
|
fwrite(&length_be, 4, 1, _fd);
|
|
}
|
|
|
|
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)
|
|
{
|
|
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;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
SMFSource::load_model(bool lock, bool force_reload)
|
|
{
|
|
if (_writing)
|
|
return;
|
|
|
|
if (lock)
|
|
Glib::Mutex::Lock lm (_lock);
|
|
|
|
if (_model && !force_reload && !_model->empty())
|
|
return;
|
|
|
|
if (! _model) {
|
|
_model = boost::shared_ptr<MidiModel>(new MidiModel(this));
|
|
cerr << _name << " loaded new model " << _model.get() << endl;
|
|
} 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() = (double)time * frames_per_beat / (double)_ppqn;
|
|
_model->append(ev);
|
|
}
|
|
|
|
if (ev.size() > scratch_size)
|
|
scratch_size = ev.size();
|
|
else
|
|
ev.size() = scratch_size;
|
|
}
|
|
|
|
_model->end_write(false);
|
|
_model->set_edited(false);
|
|
|
|
free(buf);
|
|
}
|
|
|
|
|
|
void
|
|
SMFSource::destroy_model()
|
|
{
|
|
//cerr << _name << " destroying model " << _model.get() << endl;
|
|
_model.reset();
|
|
}
|
|
|