public byte[] GetRawSongs()
{
if (this.id == 0)
{
var dataLength = 0;
//get data length, for faster concat
for (int i = 0; i < songList.Count; i++)
{
dataLength += songList[i].rawData.Length;
}
byte[] midiData = new byte[dataLength];
int index = 0;
//do fast concat
for (int i = 0; i < songList.Count; i++)
{
var songRawData = CGeneric.GiveMeArray(songList[i].rawData, 0, songList[i].rawData.Length);
for (int j = 0; j < songList[i].rawData.Length; j++)
{
midiData[index + j] = songRawData[j];
}
index += songList[i].rawData.Length;
}
return(midiData);
}
else
{
return(midi);
}
}
private void DecomposeSounds()
{
nbInstruments = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, 0x20, 4));
int indexSoundPtr = 0;
int soundLength = 0;
for (int i = 0; i < nbInstruments; i++)
{
Sound sound = new Sound();
sound.start = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, indexSoundPtr + 0x30, 4));
soundLength = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, indexSoundPtr + 0x34, 4));
//grab sound data
sound.rawData = CGeneric.GiveMeArray(waveTable, sound.start, soundLength);
sound.loop.offset = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, indexSoundPtr + 0x3C, 4));
sound.predictor.offset = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, indexSoundPtr + 0x40, 4));
//loop
if (sound.loop.offset != 0)
{
sound.loop.start = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, sound.loop.offset, 4));
sound.loop.end = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, sound.loop.offset + 4, 4));
sound.loop.count = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, sound.loop.offset + 8, 4));
sound.loop.state = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, sound.loop.offset + 0xC, 0x20));
}
//predictors
sound.predictor.order = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, sound.predictor.offset, 4));
sound.predictor.nPredictors = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(ptrTable, sound.predictor.offset + 4, 4));
sound.predictor.predictors = CGeneric.GiveMeArray(ptrTable, sound.predictor.offset + 8, sound.predictor.order * sound.predictor.nPredictors * 8 * 2);
sound.predictor.predictorShort = new short[sound.predictor.predictors.Length / 2];
for (int j = 0; j < sound.predictor.predictorShort.Length; j++)
{
sound.predictor.predictorShort[j] = BitConverter.ToInt16(new[] { sound.predictor.predictors[j * 2 + 1], sound.predictor.predictors[j * 2] }, 0);
}
if (sound.loop.offset != 0)
{
indexSoundPtr = sound.loop.offset;
}
else
{
indexSoundPtr += 0xA0;
}
soundList.Add(sound);
}
}
/// <summary>
///
/// </summary>
/// <param name="wavData">the waveData</param>
/// <param name="predictorOrder"></param>
/// <param name="predictors"></param>
/// <param name="npredictors"></param>
/// <returns></returns>
public static short[] Decode(byte[] wavData, int predictorOrder, short[] predictors, int npredictors)
{
int index;
int pred;
short[] output = new short[wavData.Length * 2];
short[] tmpOut = new short[8];
//flip the predictors
short[] preds = new short[32 * npredictors];
for (int j = 0; j < (8 * predictorOrder * npredictors); j++)
{
preds[j] = predictors[j];
}
int indexIn = 0;
int indexOut = 0;
int i = (wavData.Length / 9) * 9;
while (i > 0)
{
index = (wavData[indexIn] >> 4) & 0xF;
pred = (wavData[indexIn] & 0xF);
i--;
short[] pred1 = new short[16];
for (int j = 0; j < 16; j++)
{
pred1[j] = preds[pred * 16 + j];
}
indexIn++;
tmpOut = Decode8(CGeneric.GiveMeArray(wavData, indexIn, 8), index, pred1, tmpOut, pred);
Array.Copy(tmpOut, 0, output, indexOut, 8);
indexIn += 4;
i -= 4;
indexOut += 8;
tmpOut = Decode8(CGeneric.GiveMeArray(wavData, indexIn, i == 4 ? i:8), index, pred1, tmpOut, pred);
Array.Copy(tmpOut, 0, output, indexOut, 8);
indexIn += 4;
i -= 4;
indexOut += 8;
}
//trim 00 end padding
return(output.Take(indexOut).ToArray());
}
private int DecomposeSong()
{
int songTotalLength = 0;
for (int i = 0; i < songDataAddress.Length; i += 8)
{
//starting address song0
int songAddress = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(songDataAddress, i, 4));
int songLength = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(songDataAddress, i + 4, 4)) - songAddress;
//grab the start address of song
byte[] songRawData = CGeneric.GiveMeArray(rawData, songAddress - positionPtrStart, songLength);
Song song = new Song(songRawData);
songList.Add(song);
songTotalLength += songLength;
}
return(songTotalLength);
}
//search for N64 PtrTable V2 for cutting soundbank
private void ChunkSoundBank()
{
byte[] tmpRawDataN64PtrTable = new byte[16];
//initialized to 16 to avoid first soundbank set to 0..
int sizeOfSoundBank = 16;
//searching N64PtrTableV2 pattern (each one will be stored in a soundbank)
int position = initialIndexAudioStart;
int positionNext = 0;
for (int i = 0; i <= 0x15; i++)
{
positionNext = CGeneric.SearchBytesInArray(rawData, CGeneric.patternN64PtrTableV2, 0, position + 16, 16);
//if it's the last, don't search the next, just search the end of the rom
if (positionNext == -1)
{
positionNext = CGeneric.SearchBytesInArray(rawData, CGeneric.endOfRom, 0, position + 16, 16);
}
sizeOfSoundBank = positionNext - position;
if (i == 0)//for the first soundBank, give
{
byte[] startingEndingAddress = CGeneric.GiveMeArray(rawData, RomLangAddress.GetMidiSongSoundBank0(), 0x238);
soundBankList.Add(new SoundBank(CGeneric.GiveMeArray(rawData, position, sizeOfSoundBank), soundBankList.Count, position, startingEndingAddress));
}
else
{
soundBankList.Add(new SoundBank(CGeneric.GiveMeArray(rawData, position, sizeOfSoundBank), soundBankList.Count));
}
position += sizeOfSoundBank;
sizeOfSoundBank = 16;
}
}
//chunk RawData into PtrTable, WaveTable and Sfx
private void ChunkRawData(int id)
{
//initialized to 16 to avoid first soundbank set to 0..
int sizeOfPtrTable = 0;
//searching waveTable (end of PtrTable) and write ptrTable rawData
sizeOfPtrTable = CGeneric.SearchBytesInArray(rawData, CGeneric.patternN64WaveTable, 0, 16, 16);
ptrTable = CGeneric.GiveMeArray(rawData, 0, sizeOfPtrTable);
//waveTable = CGeneric.GiveMeArray(rawData,ptrTable.Length,rawData.Length - ptrTable.Length);
int sizeSfx = 0;
int sizeMidi = 0;
//searching midi and sfx
switch (id)
{
case 0:
sizeMidi = DecomposeSong();
break;
//there is a midi song and sfx, so with a unknow wavetable length, we need to determine sfx and midi length..
case 1:
var startMidi = CGeneric.SearchBytesInArray(rawData, CGeneric.patternMidiSoundBank1, 0, 0, 16);
sizeMidi = RomLangAddress.GetSizeMidiSoundBank1();
sizeSfx = rawData.Length - (startMidi + sizeMidi);
break;
//there is song but no sfx
case 2:
sizeMidi = RomLangAddress.GetSizeMidiSoundBank2();
break;
//standard computed sfx size and no midi file (dirty check, but seems working pretty well).
default:
int tmpSfxEqualValue;
int tmpSfxEqualValue2;
int tmpSfxEqualValue3;
int tmpSfxNull;
for (int i = ptrTable.Length; i < rawData.Length - 16; i += 16)
{
//quick test, for avoiding cpu consuption
tmpSfxNull = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(rawData, i + 12, 4));
if (tmpSfxNull == 0)
{
tmpSfxEqualValue = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(rawData, i, 4));
tmpSfxEqualValue2 = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(rawData, i + 4, 4));
tmpSfxEqualValue3 = CGeneric.ConvertByteArrayToInt(CGeneric.GiveMeArray(rawData, i + 8, 4));
var tmpSfxEqualValue4 = tmpSfxEqualValue3++;
if (tmpSfxEqualValue != 0 && tmpSfxEqualValue == tmpSfxEqualValue2 && (tmpSfxEqualValue2 == tmpSfxEqualValue4 || tmpSfxEqualValue2 == tmpSfxEqualValue3))
{
sizeSfx = rawData.Length - i;
break;
}
}
}
break;
}
//store date with size found previously
waveTable = CGeneric.GiveMeArray(rawData, ptrTable.Length, rawData.Length - (ptrTable.Length + sizeMidi + sizeSfx));
midi = CGeneric.GiveMeArray(rawData, ptrTable.Length + waveTable.Length, sizeMidi);
sfx = CGeneric.GiveMeArray(rawData, ptrTable.Length + waveTable.Length + sizeMidi, sizeSfx);
}