/*
* JAIV2 KeyRegion Structure
* 0x00 byte baseKey
* 0x01 byte[0x3] unused;
* 0x04 int32 velocityRegionCount
* VelocityRegion[velocityRegionCount] velocities; // NOTE THESE ARENT POINTERS, THESE ARE ACTUAL OBJECTS.
*/
public JInstrumentKey readKeyRegion(BeBinaryReader binStream, int Base)
{
JInstrumentKey newKey = new JInstrumentKey();
newKey.Velocities = new JInstrumentKeyVelocity[0x81]; // Create region array
//-------
//Console.WriteLine(binStream.BaseStream.Position);
newKey.baseKey = binStream.ReadByte(); // Store base key
binStream.BaseStream.Seek(3, SeekOrigin.Current);; // Skip 3 bytes
var velRegCount = binStream.ReadInt32(); // Grab vel region count
var velLow = 0; // Again, these are regions -- see LoadInstrument for this exact code ( a few lines above )
for (int i = 0; i < velRegCount; i++)
{
var breg = readKeyVelRegion(binStream, Base); // Read the vel region.
for (int b = 0; b < breg.baseVel - velLow; b++)
{
// They're velocity regions, so we're going to have a toothy / gappy piano. So we need to span the missing gaps with the previous region config.
// This means that if the last key was 4, and the next key was 8 -- whatever parameters 4 had will span keys 4 5 6 and 7.
newKey.Velocities[b] = breg;
newKey.Velocities[127] = breg;
}
velLow = breg.baseVel;
}
return(newKey);
}
public JInstrument loadPercussionInstrument(BeBinaryReader binStream, int Base)
{
if (binStream.ReadInt32() != Perc)
{
throw new InvalidDataException("Perc section started with unexpected data");
}
var newPERC = new JInstrument();
newPERC.IsPercussion = true;
newPERC.Pitch = 1f;
newPERC.Volume = 1f;
var count = binStream.ReadInt32();
var ptrs = Helpers.readInt32Array(binStream, count);
var iKeys = new JInstrumentKey[count];
for (int i = 0; i < count; i++)
{
var PmapOffset = ptrs[i];
if (PmapOffset > 0)
{
var newKey = new JInstrumentKey();
newKey.Velocities = new JInstrumentKeyVelocity[0x81];
var pmapDataOffs = PmapOffset + Base; // OH LOOK ANOTHER RELATIVE TO BANK BASE.
binStream.BaseStream.Position = pmapDataOffs;
if (binStream.ReadInt32() != Pmap)
{
Console.WriteLine("ERROR: Invalid PMAP data {0:X} -- Potential misalignment!", binStream.BaseStream.Position);
continue;
}
newKey.Volume = binStream.ReadInt32();
newKey.Pitch = binStream.ReadInt32();
//binStream.ReadInt32(); // byte panning
binStream.BaseStream.Seek(8, SeekOrigin.Current); // runtime.
var velRegCount = binStream.ReadInt32();
var velLow = 0;
for (int b = 0; b < velRegCount; b++)
{
var breg = readKeyVelRegion(binStream, Base);
for (int c = 0; c < breg.baseVel - velLow; c++)
{
// They're velocity regions, so we're going to have a toothy / gappy piano. So we need to span the missing gaps with the previous region config.
// This means that if the last key was 4, and the next key was 8 -- whatever parameters 4 had will span keys 4 5 6 and 7.
newKey.Velocities[c] = breg; // store the region
newKey.Velocities[127] = breg;
}
velLow = breg.baseVel; // store the velocity for spanning
}
iKeys[i] = newKey;
}
}
newPERC.Keys = iKeys;
newPERC.oscillatorCount = 0;
return(newPERC);
}
/*
* JAIV1 PER2 Structure
* 0x00 int32 0x50455232 'PER2'
* 0x04 byte[0x84] unused; // the actual f**k? Waste of 0x84 perfectly delicious bytes.
* 0x8C *PercussionKey[100]
*
* PER2 PercussionKey Structure
* float pitch;
* float volume;
* byte[0x8] unused?
* int32 velocityRegionCount
* VelocityRegion[velocityRegionCount] velocities
*
*/
public JInstrument loadPercussionInstrument(BeBinaryReader binStream, int Base)
{
var Inst = new JInstrument();
if (binStream.ReadUInt32() != PER2) // Check if first 4 bytes are PER2
{
throw new InvalidDataException("Data is not an PER2");
}
Inst.Pitch = 1.0f;
Inst.Volume = 1.0f;
Inst.IsPercussion = true;
binStream.BaseStream.Seek(0x84, SeekOrigin.Current);
JInstrumentKey[] keys = new JInstrumentKey[100];
int[] keyPointers = new int[100];
keyPointers = Helpers.readInt32Array(binStream, 100); // read the pointers.
for (int i = 0; i < 100; i++) // Loop through all pointers.
{
if (keyPointers[i] == 0)
{
continue;
}
binStream.BaseStream.Position = keyPointers[i] + Base; // Set position to key pointer pos (relative to base)
var newKey = new JInstrumentKey();
newKey.Pitch = binStream.ReadSingle(); // read the pitch
newKey.Volume = binStream.ReadSingle(); // read the volume
binStream.BaseStream.Seek(8, SeekOrigin.Current); // runtime values, skip
var velRegCount = binStream.ReadInt32(); // read count of regions we have
newKey.Velocities = new JInstrumentKeyVelocity[0xff]; // 0xFF just in case.
int[] velRegPointers = Helpers.readInt32Array(binStream, velRegCount);
var velLow = 0; // Again, these are regions -- see LoadInstrument for this exact code ( a few lines above )
for (int b = 0; b < velRegCount; b++)
{
binStream.BaseStream.Position = velRegPointers[b] + Base;
var breg = readKeyVelRegion(binStream, Base); // Read the vel region.
for (int c = 0; c < breg.baseVel - velLow; c++)
{
// They're velocity regions, so we're going to have a toothy / gappy piano. So we need to span the missing gaps with the previous region config.
// This means that if the last key was 4, and the next key was 8 -- whatever parameters 4 had will span keys 4 5 6 and 7.
newKey.Velocities[c] = breg; // store the region
newKey.Velocities[127] = breg;
}
velLow = breg.baseVel; // store the velocity for spanning
}
keys[i] = newKey;
}
Inst.Keys = keys;
return(Inst);
}
/* JAIV2 Instrument Structure
* 0x00 int32 = 0x496E7374 'Inst'
* 0x04 int32 oscillatorCount
* 0x08 int32[oscillatorCount] oscillatorIndicies
* ???? int32 0
* ???? int32 keyRegionCount
* ???? keyRegion[keyRegionCount]
* ???? float gain
* ???? float freqmultiplier
*
*/
public JInstrument loadInstrument(BeBinaryReader binStream, int Base)
{
var newInst = new JInstrument();
newInst.IsPercussion = false; // Instrument isn't percussion
// This is wrong, they come at the end of the instrument
//newInst.Pitch = 1; // So these kinds of instruments don't initialize with a pitch value, which is strange.
//newInst.Volume = 1; // I guess they figured that it was redundant since they're already doing it in 3 other places.
if (binStream.ReadInt32() != Inst)
{
throw new InvalidDataException("Inst section started with unexpected data");
}
var osciCount = binStream.ReadInt32(); // Read the count of the oscillators.
newInst.oscillatorCount = (byte)osciCount; // Hope no instrument never ever ever has > 255 oscillators lol.
newInst.oscillators = new JOscillator[osciCount]; // Initialize the instrument with the proper amount of oscillaotrs
for (int i = 0; i < osciCount; i++) // Loop through and read each oscillator.
{
var osciIndex = binStream.ReadInt32(); // Each oscillator is stored as a 32 bit index.
newInst.oscillators[i] = bankOscillators[osciIndex]; // We loaded the oscillators already, I hope. So this will grab them by their index.
}
var notpadding = binStream.ReadInt32(); // NOT PADDING. F**K. Probably effects.
Helpers.readInt32Array(binStream, notpadding);
var keyRegCount = binStream.ReadInt32();
var keyLow = 0; // For region spanning.
JInstrumentKey[] keys = new JInstrumentKey[0x81]; // Always go for one more.
for (int i = 0; i < keyRegCount; i++) // Loop through all pointers.
{
var bkey = readKeyRegion(binStream, Base); // Read the key region
//Console.WriteLine("KREG BASE KEY {0}", bkey.baseKey);
for (int b = 0; b < bkey.baseKey - keyLow; b++)
{
// They're key regions, so we're going to have a toothy / gappy piano. So we need to span the missing gaps with the previous region config.
// This means that if the last key was 4, and the next key was 8 -- whatever parameters 4 had will span keys 4 5 6 and 7.
keys[b + keyLow] = bkey; // span the keys
keys[127] = bkey;
}
keyLow = bkey.baseKey; // Store our last key
}
newInst.Keys = keys;
newInst.Volume = binStream.ReadSingle(); // ^^
newInst.Pitch = binStream.ReadSingle(); // Pitch and volume come last???
// WE HAVE READ EVERY BYTE IN THE INST, WOOO
return(newInst);
}
/*
* JAIV1 INST Structure
* 0x00 int32 0x494E5354 'INST'
* 0x04 int32 0 - unused?
* 0x08 float frequencyMultiplier
* 0x0C float gainMultiplier
* 0x10 int32 oscillator table offset
* 0x14 int32 oscillator table count
* 0x18 int32 effect table offset
* 0x1C int32 effect table size
* 0x20 int32 sensor object table
* 0x24 int32 sensor object table count
* 0x28 int32 key_region_count
* 0x2C *KeyRegion[key_region_count]
*
*/
public JInstrument loadInstrument(BeBinaryReader binStream, int Base)
{
var Inst = new JInstrument();
if (binStream.ReadUInt32() != INST) // Check if first 4 bytes are INST
{
throw new InvalidDataException("Data is not an INST");
}
binStream.ReadUInt32(); // oh god oh god oh god its null
Inst.Pitch = binStream.ReadSingle();
Inst.Volume = binStream.ReadSingle();
var osc1Offset = binStream.ReadUInt32();
var osc2Offset = binStream.ReadUInt32();
binStream.ReadUInt32(); // *NOT IMPLEMENTED* //
binStream.ReadUInt32(); // *NOT IMPLEMENTED* //
binStream.ReadUInt32(); // *NOT IMPLEMENTED* //
binStream.ReadUInt32(); // *NOT IMPLEMENTED* //
// * trashy furry screaming * //
int keyregCount = binStream.ReadInt32(); // Read number of key regions
JInstrumentKey[] keys = new JInstrumentKey[0x81]; // Always go for one more.
int[] keyRegionPointers = new int[keyregCount];
keyRegionPointers = Helpers.readInt32Array(binStream, keyregCount);
var keyLow = 0; // For region spanning.
for (int i = 0; i < keyregCount; i++) // Loop through all pointers.
{
binStream.BaseStream.Position = keyRegionPointers[i] + Base; // Set position to key pointer pos (relative to base)
var bkey = readKeyRegion(binStream, Base); // Read the key region
for (int b = 0; b < bkey.baseKey - keyLow; b++)
{
// They're key regions, so we're going to have a toothy / gappy piano. So we need to span the missing gaps with the previous region config.
// This means that if the last key was 4, and the next key was 8 -- whatever parameters 4 had will span keys 4 5 6 and 7.
keys[b + keyLow] = bkey; // span the keys
keys[127] = bkey;
}
keyLow = bkey.baseKey; // Store our last key
}
Inst.Keys = keys;
byte oscCount = 0;
if (osc1Offset > 0)
{
oscCount++;
}
if (osc2Offset > 0)
{
oscCount++;
}
Inst.oscillatorCount = oscCount; // Redundant?
Inst.oscillators = new JOscillator[oscCount]; // new oscillator array
if (osc1Offset != 0) // if the oscillator isnt null
{
binStream.BaseStream.Position = osc1Offset + Base; // seek to it's position
Inst.oscillators[0] = loadOscillator(binStream, Base); // then load it.
}
if (osc2Offset != 0) // if the second oscillator isn't null
{
binStream.BaseStream.Position = osc2Offset + Base; // seek to its position
Inst.oscillators[1] = loadOscillator(binStream, Base); // and load it.
}
return(Inst);
}
