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More powerful SMF::open interface.

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git-svn-id: svn://localhost/ardour2/branches/3.0@4554 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
David Robillard 2009-02-14 17:54:45 +00:00
parent d439459589
commit b2a051f6c6
4 changed files with 31 additions and 25 deletions
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28
libs/evoral/src/SMF.cpp
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@ -42,40 +42,46 @@ SMF<Time>::~SMF()
* Currently SMF is always read/write.
*
* \return 0 on success
* -1 if the file can not be opened
* -1 if the file can not be opened or created
* -2 if the file exists but specified track does not
*/
template<typename Time>
int
SMF<Time>::open(const std::string& path) THROW_FILE_ERROR
SMF<Time>::open(const std::string& path, bool create, int track) THROW_FILE_ERROR
{
if (_smf) {
smf_delete(_smf);
}
_path = path;
assert(_path != "");
_smf = smf_load(_path.c_str());
if (!_smf) {
if (!create) {
return -1;
}
_smf = smf_new();
if (smf_set_ppqn(_smf, _ppqn) != 0) {
throw FileError();
}
if(_smf == NULL) {
if (_smf == NULL) {
return -1;
}
_smf_track = smf_track_new();
assert(_smf_track);
smf_add_track(_smf, _smf_track);
for (int i = 0; i < track; ++i) {
_smf_track = smf_track_new();
assert(_smf_track);
smf_add_track(_smf, _smf_track);
}
}
_smf_track = smf_get_track_by_number(_smf, 1);
assert(_smf_track);
_smf_track = smf_get_track_by_number(_smf, track);
if (!_smf_track)
return -2;
cerr << "number of events: " << _smf_track->number_of_events << endl;
cerr << "Track " << track << " # events: " << _smf_track->number_of_events << endl;
_empty = !(_smf_track->number_of_events > 0);