void CSongState::AssignToSection(CIntRange BeatRange, int SectionIdx)
{
CIntRange ChordRange, Offset;
ChordRange = FindChordRange(BeatRange, Offset);
// for each chord in range
for (int iChord = ChordRange.Start; iChord <= ChordRange.End; iChord++)
m_SectionMap[iChord] = SectionIdx; // assign chord to section
MakeSections(); // rebuild sections from section map
}
void CSongState::MergeImplicitSections()
{
int iImplicit = m_Section.FindImplicit(); // find first implicit section
if (iImplicit < 0) // if no implicit sections exist
return; // nothing to do
int nChords = GetChordCount();
for (int iChord = 0; iChord < nChords; iChord++) { // for each chord
// if chord belongs to any implicit section
if (m_Section[m_SectionMap[iChord]].Implicit())
m_SectionMap[iChord] = iImplicit; // assign it to first implicit section
}
MakeSections(); // rebuild sections from section map
}
void CELF2MAC<ELFSTRUCTURES,MACSTRUCTURES>::Convert() {
// Do the conversion
// Some compilers require this-> for accessing members of template base class,
// according to the so-called two-phase lookup rule.
// Call the subfunctions
ToFile.SetFileType(FILETYPE_MACHO_LE); // Set type of new file
MakeFileHeader(); // Make file header
MakeSectionsIndex(); // Make sections index translation table
FindUnusedSymbols(); // Check if symbols used, remove unused symbols
MakeSymbolTable(); // Make symbol table and string tables
MakeSections(); // Make sections and relocation tables
MakeBinaryFile(); // Put sections together
*this << ToFile; // Take over new file buffer
}
bool CSongState::ChangeLength(CIntRange& BeatRange, double Scale)
{
CIntRange ChordRange, Offset;
ChordRange = FindChordRange(BeatRange, Offset);
bool RoundingError = FALSE;
int NewSelDur = 0;
for (int iChord = ChordRange.Start; iChord <= ChordRange.End; iChord++) {
CSong::CChord& ch = m_Chord[iChord];
double fDur = ch.m_Duration * Scale; // scale chord duration
int iDur = round(fDur); // chord durations are stored as integers
if (fabs(iDur - fDur) > .01) // if rounding error exceeds +/- 1%
RoundingError = TRUE; // set flag
iDur = max(iDur, 1); // enforce minimum duration
ch.m_Duration = iDur; // update chord duration
NewSelDur += iDur; // add duration to selection length
}
MakeSections(); // rebuild sections from section map
// return scaled beat range to caller by overwriting beat range argument
int iStartBeat = GetStartBeat(ChordRange.Start);
BeatRange = CIntRange(iStartBeat, iStartBeat + NewSelDur - 1);
return(!RoundingError); // return false if rounding errors occurred
}
void CSongState::OnChordCountChange()
{
MergeDuplicateChords();
MakeSections(); // rebuild sections from section map
}