bool MP2kSeq::GetHeaderInfo(void) {
if (dwOffset + 2 > vgmfile->GetEndOffset()) {
return false;
}
nNumTracks = GetShort(dwOffset);
// if there are no tracks or there are more tracks than allowed
// return an error; the sequence shall be deleted
if (nNumTracks == 0 || nNumTracks > 24) {
return false;
}
if (dwOffset + 8 + nNumTracks * 4 > vgmfile->GetEndOffset()) {
return false;
}
VGMHeader *seqHdr = AddHeader(dwOffset, 8 + nNumTracks * 4, L"Sequence Header");
seqHdr->AddSimpleItem(dwOffset, 1, L"Number of Tracks");
seqHdr->AddSimpleItem(dwOffset + 1, 1, L"Unknown");
seqHdr->AddSimpleItem(dwOffset + 2, 1, L"Priority");
seqHdr->AddSimpleItem(dwOffset + 3, 1, L"Reverb");
uint32_t dwInstPtr = GetWord(dwOffset + 4);
seqHdr->AddPointer(dwOffset + 4, 4, dwInstPtr - 0x8000000, true, L"Instrument Pointer");
for (unsigned int i = 0; i < nNumTracks; i++) {
uint32_t dwTrackPtrOffset = dwOffset + 8 + i * 4;
uint32_t dwTrackPtr = GetWord(dwTrackPtrOffset);
seqHdr->AddPointer(dwTrackPtrOffset, 4, dwTrackPtr - 0x8000000, true, L"Track Pointer");
}
SetPPQN(0x30);
return true;
}
bool RareSnesSeq::GetHeaderInfo(void)
{
SetPPQN(SEQ_PPQN);
VGMHeader* seqHeader = AddHeader(dwOffset, MAX_TRACKS * 2 + 2, L"Sequence Header");
uint32_t curHeaderOffset = dwOffset;
for (int i = 0; i < MAX_TRACKS; i++)
{
uint16_t trkOff = GetShort(curHeaderOffset);
seqHeader->AddPointer(curHeaderOffset, 2, trkOff, (trkOff != 0), L"Track Pointer");
curHeaderOffset += 2;
}
initialTempo = GetByte(curHeaderOffset);
seqHeader->AddTempo(curHeaderOffset++, 1, L"Tempo");
seqHeader->AddUnknownItem(curHeaderOffset++, 1);
return true; //successful
}