AJ Kelly
76 lines
3.1 KiB
C++
76 lines
3.1 KiB
C++
/* AdjustSync - Allows for adjusting the sync of a song. */
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#ifndef AdjustSync_H
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#define AdjustSync_H
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/* This class defines two ways of adjusting the sync of a song.
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* The first adjusts only the offset, "on the fly". It can adjust either the
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* song itself or the machine. The other style adjusts both the BPM and the
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* offset of the song, but it needs more data. */
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class TimingData;
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class AdjustSync
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{
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public:
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static TimingData *s_pTimingDataOriginal;
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static float s_fGlobalOffsetSecondsOriginal;
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/* We only want to call the Reset methods before a song, not immediately after
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* a song. If we reset it at the end of a song, we have to carefully check
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* the logic to make sure we never reset it before the user gets a chance to
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* save or revert the change. Resetting at the start of the song is
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* sufficient. */
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static void ResetOriginalSyncData();
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static void ResetAutosync();
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static bool IsSyncDataChanged();
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static void SaveSyncChanges();
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static void RevertSyncChanges();
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static void HandleAutosync( float fNoteOffBySeconds, float fStepTime );
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static void HandleSongEnd();
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static void AutosyncOffset();
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static void AutosyncTempo();
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static void GetSyncChangeTextGlobal( vector<RString> &vsAddTo );
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static void GetSyncChangeTextSong( vector<RString> &vsAddTo );
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static const int OFFSET_SAMPLE_COUNT = 56;
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static float s_fAutosyncOffset[OFFSET_SAMPLE_COUNT];
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static int s_iAutosyncOffsetSample;
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static float s_fStandardDeviation;
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// Measured in seconds. If the average error is too high, we
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// reject the recorded data for the Least Squares Regression.
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static const float ERROR_TOO_HIGH;
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static vector< pair<float, float> > s_vAutosyncTempoData;
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static float s_fAverageError;
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static int s_iStepsFiltered;
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};
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#endif
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/*
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* (c) 2003-2006 Chris Danford, John Bauer
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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