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speed-up smf_track_delete() from O(N^2) to O(n)

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This commit is contained in:
Robin Gareus 2015-09-19 00:38:32 +02:00
parent 2ef2ea0b59
commit 7648824773
1 changed files with 9 additions and 4 deletions
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13
libs/evoral/src/libsmf/smf.c
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@ -133,15 +133,20 @@ smf_track_delete(smf_track_t *track)
assert(track);
assert(track->events_array);
/* Remove all the events, from last to first. */
while (track->events_array->len > 0)
smf_event_delete((smf_event_t*)g_ptr_array_index(track->events_array, track->events_array->len - 1));
/* Remove all the events */
for (unsigned int i=0; i < track->events_array->len; ++i) {
smf_event_t* ev = g_ptr_array_index(track->events_array, i);
free (ev->midi_buffer);
free (ev);
}
g_ptr_array_remove_range(track->events_array, 0, track->events_array->len);
track->number_of_events = 0;
if (track->smf)
smf_track_remove_from_smf(track);
assert(track->events_array->len == 0);
assert(track->number_of_events == 0);
g_ptr_array_free(track->events_array, TRUE);
memset(track, 0, sizeof(smf_track_t));