public static SEQ Load(byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
// All SEP/SEQ stuff is big-endian, like MIDI
if (data.Length < 15)
{
ErrorManager.SignalError("SEQ: Data is too short");
}
int magic = BEBitConv.FromInt32(data, 0);
int version = BEBitConv.FromInt32(data, 4);
if (magic != Magic)
{
ErrorManager.SignalIgnorableError("SEQ: Magic number is wrong");
}
if (version != Version)
{
ErrorManager.SignalIgnorableError("SEQ: Version number is wrong");
}
short resolution = BEBitConv.FromInt16(data, 8);
int tempo = MIDIConv.From3BE(data, 10);
short rhythm = BEBitConv.FromInt16(data, 13);
byte[] scoredata = new byte [data.Length - 15];
Array.Copy(data, 15, scoredata, 0, scoredata.Length);
return(new SEQ(resolution, tempo, rhythm, scoredata));
}
public static VAB Join(VH vh, SampleLine[] vb)
{
if (vh == null)
{
throw new ArgumentNullException("vh");
}
if (vb == null)
{
throw new ArgumentNullException("vb");
}
if (vh.VBSize != vb.Length)
{
ErrorManager.SignalIgnorableError("VAB: VB size field mismatch");
}
SampleSet[] waves = new SampleSet [vh.Waves.Count];
int offset = 0;
for (int i = 0; i < vh.Waves.Count; i++)
{
int wavelength = vh.Waves[i];
if (offset + wavelength > vb.Length)
{
ErrorManager.SignalError("VAB: Wave ends out of bounds");
}
SampleLine[] wavelines = new SampleLine[wavelength];
for (int j = 0; j < wavelength; j++)
{
wavelines[j] = vb[offset + j];
}
offset += wavelength;
waves[i] = new SampleSet(wavelines);
}
return(new VAB(vh.IsOldVersion, vh.Volume, vh.Panning, vh.Attribute1, vh.Attribute2, vh.Programs, waves));
}
public override Entry Load(byte[][] items, int eid)
{
if (items == null)
{
throw new ArgumentNullException("items");
}
if (items.Length != 2)
{
ErrorManager.SignalError("WavebankEntry: Wrong number of items");
}
if (items[0].Length != 8)
{
ErrorManager.SignalError("WavebankEntry: First item length is wrong");
}
int id = BitConv.FromInt32(items[0], 0);
int length = BitConv.FromInt32(items[0], 4);
if (id < 0 || id > 6)
{
ErrorManager.SignalIgnorableError("WavebankEntry: ID is invalid");
}
if (length != items[1].Length)
{
ErrorManager.SignalIgnorableError("WavebankEntry: Length field mismatch");
}
return(new WavebankEntry(id, SampleSet.Load(items[1]), eid));
}
public static VHTone Load(byte[] data)
{
if (data.Length != 32)
{
throw new ArgumentException("Value must be 32 bytes long.", "data");
}
byte priority = data[0];
byte mode = data[1];
byte volume = data[2];
byte panning = data[3];
byte centernote = data[4];
byte pitchshift = data[5];
byte minimumnote = data[6];
byte maximumnote = data[7];
byte vibratowidth = data[8];
byte vibratotime = data[9];
byte portamentowidth = data[10];
byte portamentotime = data[11];
byte pitchbendminimum = data[12];
byte pitchbendmaximum = data[13];
byte reserved1 = data[14];
byte reserved2 = data[15];
short adsr1 = BitConv.FromInt16(data, 16);
short adsr2 = BitConv.FromInt16(data, 18);
// Unused 2 bytes here
short wave = BitConv.FromInt16(data, 22);
short reserved3 = BitConv.FromInt16(data, 24);
short reserved4 = BitConv.FromInt16(data, 26);
short reserved5 = BitConv.FromInt16(data, 28);
short reserved6 = BitConv.FromInt16(data, 30);
if (reserved1 != 0xB1)
{
ErrorManager.SignalIgnorableError("VHTone: Reserved value 1 is wrong");
}
if (reserved2 != 0xB2)
{
ErrorManager.SignalIgnorableError("VHTone: Reserved value 2 is wrong");
}
if (reserved3 != 0xC0)
{
ErrorManager.SignalIgnorableError("VHTone: Reserved value 3 is wrong");
}
if (reserved4 != 0xC1)
{
ErrorManager.SignalIgnorableError("VHTone: Reserved value 4 is wrong");
}
if (reserved5 != 0xC2)
{
ErrorManager.SignalIgnorableError("VHTone: Reserved value 5 is wrong");
}
if (reserved6 != 0xC3)
{
ErrorManager.SignalIgnorableError("VHTone: Reserved value 6 is wrong");
}
return(new VHTone(priority, mode, volume, panning, centernote, pitchshift, minimumnote, maximumnote, vibratowidth, vibratotime, portamentowidth, portamentotime, pitchbendminimum, pitchbendmaximum, adsr1, adsr2, wave));
}
public sealed override Chunk Load(int chunkid, byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (data.Length != Chunk.Length)
{
throw new ArgumentException("Data must be 65536 bytes long.");
}
int id = BitConv.FromInt32(data, 4);
int entrycount = BitConv.FromInt32(data, 8);
int checksum = BitConv.FromInt32(data, 12);
int headersize = 20 + entrycount * 4;
if (id != chunkid)
{
ErrorManager.SignalIgnorableError("EntryChunk: Chunk id is incorrect");
}
if (entrycount < 0)
{
ErrorManager.SignalError("EntryChunk: Entry count is negative");
}
if (checksum != Chunk.CalculateChecksum(data))
{
ErrorManager.SignalIgnorableError("Chunk: Checksum is wrong");
}
if (headersize > data.Length)
{
ErrorManager.SignalError("EntryChunk: Data is too short");
}
Entry[] entries = new Entry [entrycount];
byte[] entrydata;
for (int i = 0; i < entrycount; i++)
{
int entrystart = BitConv.FromInt32(data, 16 + i * 4);
int entryend = BitConv.FromInt32(data, 20 + i * 4);
if (entrystart < 0)
{
ErrorManager.SignalError("EntryChunk: Entry begins out of bounds");
}
if (entryend < entrystart)
{
ErrorManager.SignalError("EntryChunk: Entry ends before it begins");
}
if (entryend > data.Length)
{
ErrorManager.SignalError("EntryChunk: Entry ends out of bounds");
}
int entrysize = entryend - entrystart;
entrydata = new byte [entrysize];
Array.Copy(data, entrystart, entrydata, 0, entrysize);
entries[i] = Entry.Load(entrydata);
}
return(Load(entries));
}
public static UnprocessedEntry Load(byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (data.Length < 16)
{
ErrorManager.SignalError("Entry: Data is too short");
}
int magic = BitConv.FromInt32(data, 0);
int eid = BitConv.FromInt32(data, 4);
int type = BitConv.FromInt32(data, 8);
int itemcount = BitConv.FromInt32(data, 12);
if (magic != Magic)
{
ErrorManager.SignalIgnorableError("Entry: Magic number is wrong");
}
if (itemcount < 0)
{
ErrorManager.SignalError("Entry: Item count is negative");
}
if (data.Length < 20 + itemcount * 4)
{
ErrorManager.SignalError("Entry: Data is too short");
}
byte[][] items = new byte [itemcount][];
byte[] itemdata;
for (int i = 0; i < itemcount; i++)
{
int itemstart = BitConv.FromInt32(data, 16 + i * 4);
int itemend = BitConv.FromInt32(data, 20 + i * 4);
if (itemstart < 0)
{
ErrorManager.SignalError("Entry: Item begins out of bounds");
}
if (itemend < itemstart)
{
ErrorManager.SignalError("Entry: Item ends before it begins");
}
if (itemend > data.Length)
{
ErrorManager.SignalError("Entry: Item ends out of bounds");
}
int itemsize = itemend - itemstart;
itemdata = new byte [itemsize];
Array.Copy(data, itemstart, itemdata, 0, itemsize);
items[i] = itemdata;
}
return(new UnprocessedEntry(items, eid, type));
}
public override Entry Load(byte[][] items, int eid)
{
if (items == null)
{
throw new ArgumentNullException("items");
}
T4Item[] t4items = new T4Item [items.Length];
for (int i = 0; i < items.Length; i++)
{
t4items[i] = T4Item.Load(items[i]);
if (t4items[i].Unknown1 != ((i == 0 || i == items.Length - 1) ? 0 : 1))
{
ErrorManager.SignalIgnorableError("T4Entry: Item unknown field is wrong");
}
}
return(new T4Entry(t4items, eid));
}
public static VHProgram Load(byte[] data, byte[] tonedata, bool isoldversion)
{
if (data.Length != 16)
{
throw new ArgumentException("Value must be 16 bytes long.", "data");
}
if (tonedata.Length != 32 * 16)
{
throw new ArgumentException("Value must be 512 bytes long.", "tonedata");
}
byte tonecount = data[0];
byte volume = data[1];
byte priority = data[2];
byte mode = data[3];
byte panning = data[4];
byte reserved1 = data[5];
short attribute = BitConv.FromInt16(data, 6);
int reserved2 = BitConv.FromInt32(data, 8);
int reserved3 = BitConv.FromInt32(data, 12);
if (tonecount < 0 || tonecount > 16)
{
ErrorManager.SignalError("VHProgram: Tone count is wrong");
}
if (reserved1 != (isoldversion ? 0x00 : 0xFF))
{
ErrorManager.SignalIgnorableError("VHProgram: Reserved value 1 is wrong");
}
if (reserved2 != -1)
{
ErrorManager.SignalIgnorableError("VHProgram: Reserved value 2 is wrong");
}
if (reserved3 != -1)
{
ErrorManager.SignalIgnorableError("VHProgram: Reserved value 3 is wrong");
}
VHTone[] tones = new VHTone [tonecount];
for (int i = 0; i < tonecount; i++)
{
byte[] thistonedata = new byte [32];
Array.Copy(tonedata, i * 32, thistonedata, 0, 32);
tones[i] = VHTone.Load(thistonedata);
}
return(new VHProgram(isoldversion, volume, priority, mode, panning, attribute, tones));
}
public static UnprocessedChunk Load(byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (data.Length != Length)
{
throw new ArgumentException("Value must be 65536 bytes long.", "data");
}
short magic = BitConv.FromInt16(data, 0);
if (magic != Magic)
{
ErrorManager.SignalIgnorableError("Chunk: Magic number is wrong");
}
return(new UnprocessedChunk(data));
}
public static EntityProperty Load(byte type, byte elementsize, short unknown, bool last, byte[] data)
{
if (((type & 128) != 0) != last)
{
ErrorManager.SignalIgnorableError("EntityProperty: Flag 128 has an unexpected value");
}
bool issparse = (type & 64) != 0;
bool hasmetavalues = (type & 32) != 0;
type &= 31;
if (loaders.ContainsKey(type))
{
return(loaders[type].Load(elementsize, unknown, issparse, hasmetavalues, data));
}
else
{
return(new EntityUnknownProperty(type, elementsize, unknown, issparse, hasmetavalues, data));
}
}
internal override void LoadToField(object obj, FieldInfo field)
{
if (field.FieldType == typeof(string))
{
if (Rows.Count == 1)
{
if (Rows[0].MetaValue == null)
{
byte[] bytestr = new byte [Rows[0].Values.Count];
for (int i = 0; i < bytestr.Length; i++)
{
bytestr[i] = Rows[0].Values[i];
}
string str = System.Text.Encoding.UTF8.GetString(bytestr);
if (str.EndsWith("\0"))
{
str = str.Remove(str.Length - 1);
}
else
{
ErrorManager.SignalIgnorableError("EntityProperty: String is not null-terminated");
}
field.SetValue(obj, str);
}
else
{
ErrorManager.SignalError("EntityProperty: Property has an unexpected metavalue");
}
}
else
{
ErrorManager.SignalError("EntityProperty: Property has more rows than expected");
}
}
else
{
base.LoadToField(obj, field);
}
}
public static SEP Load(byte[] data, int seqcount)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (seqcount < 0)
{
throw new ArgumentOutOfRangeException("seqcount");
}
// All SEP/SEQ stuff is big-endian, like MIDI
if (data.Length < 6)
{
ErrorManager.SignalError("SEP: Data is too short");
}
int magic = BEBitConv.FromInt32(data, 0);
short version = BEBitConv.FromInt16(data, 4);
if (magic != Magic)
{
ErrorManager.SignalIgnorableError("SEP: Magic number is wrong");
}
if (version != Version)
{
ErrorManager.SignalIgnorableError("SEP: Version number is wrong");
}
int offset = 6;
SEQ[] seqs = new SEQ [seqcount];
for (int i = 0; i < seqcount; i++)
{
if (data.Length < offset + 13)
{
ErrorManager.SignalError("SEP: Data is too short");
}
short seqid = BEBitConv.FromInt16(data, offset);
short resolution = BEBitConv.FromInt16(data, offset + 2);
// tempo is 3 (yes, three) bytes
int tempo = MIDIConv.From3BE(data, offset + 4);
short rhythm = BEBitConv.FromInt16(data, offset + 7);
int length = BEBitConv.FromInt32(data, offset + 9);
if (seqid != i)
{
ErrorManager.SignalIgnorableError("SEP: Track number is wrong");
}
if (length < 0)
{
ErrorManager.SignalError("SEP: Track length is negative");
}
offset += 13;
if (data.Length < offset + length)
{
ErrorManager.SignalError("SEP: Data is too short");
}
byte[] seqdata = new byte [length];
Array.Copy(data, offset, seqdata, 0, length);
seqs[i] = new SEQ(resolution, tempo, rhythm, seqdata);
offset += length;
}
return(new SEP(seqs));
}
public sealed override EntityProperty Load(byte elementsize, short unknown, bool issparse, bool hasmetavalues, byte[] data)
{
if (elementsize != ElementSize)
{
ErrorManager.SignalError("EntityProperty: Element size is wrong");
}
if (unknown < 0)
{
ErrorManager.SignalError("EntityProperty: Unknown value is invalid");
}
List <EntityPropertyRow <T> > rows = new List <EntityPropertyRow <T> >();
for (int i = 0; i < unknown; i++)
{
rows.Add(new EntityPropertyRow <T>());
}
int offset = 0;
if (issparse)
{
if (offset + 2 * unknown > data.Length)
{
ErrorManager.SignalError("EntityProperty: Not enough data");
}
foreach (EntityPropertyRow <T> row in rows)
{
int valuecount = (ushort)BitConv.FromInt16(data, offset);
offset += 2;
for (int i = 0; i < valuecount; i++)
{
row.Values.Add(new T());
}
}
}
else
{
if (offset + 2 > data.Length)
{
ErrorManager.SignalError("EntityProperty: Not enough data");
}
int valuecount = (ushort)BitConv.FromInt16(data, offset);
offset += 2;
foreach (EntityPropertyRow <T> row in rows)
{
for (int i = 0; i < valuecount; i++)
{
row.Values.Add(new T());
}
}
}
if (hasmetavalues)
{
if (offset + 2 * unknown > data.Length)
{
ErrorManager.SignalError("EntityProperty: Not enough data");
}
foreach (EntityPropertyRow <T> row in rows)
{
short metavalue = BitConv.FromInt16(data, offset);
offset += 2;
row.MetaValue = metavalue;
}
}
Aligner.Align(ref offset, 4);
byte[] elementdata = new byte [elementsize];
foreach (EntityPropertyRow <T> row in rows)
{
if (offset + row.Values.Count * elementsize > data.Length)
{
ErrorManager.SignalError("EntityProperty: Not enough data");
}
for (int i = 0; i < row.Values.Count; i++)
{
Array.Copy(data, offset, elementdata, 0, elementsize);
offset += elementsize;
row.Values[i] = LoadElement(elementdata);
}
}
Aligner.Align(ref offset, 4);
if (offset != data.Length)
{
ErrorManager.SignalIgnorableError("EntityProperty: More data than expected");
}
return(Load(rows));
}
public static VH Load(byte[] data)
{
if (data.Length < 2592)
{
ErrorManager.SignalError("VH: Data is too short");
}
int magic = BitConv.FromInt32(data, 0);
int version = BitConv.FromInt32(data, 4);
if (magic != Magic)
{
ErrorManager.SignalIgnorableError("VH: Magic number is wrong");
}
bool isoldversion;
if (version == Version)
{
isoldversion = false;
}
else if (version == OldVersion)
{
ErrorManager.SignalIgnorableError("VH: VABv6 (crash 1) is not fully supported");
isoldversion = true;
}
else
{
ErrorManager.SignalIgnorableError("VH: Version number is wrong");
isoldversion = true;
}
int id = BitConv.FromInt32(data, 8);
int size = BitConv.FromInt32(data, 12);
short reserved1 = BitConv.FromInt16(data, 16);
short programcount = BitConv.FromInt16(data, 18);
short tonecount = BitConv.FromInt16(data, 20);
short wavecount = BitConv.FromInt16(data, 22);
byte volume = data[24];
byte panning = data[25];
byte attribute1 = data[26];
byte attribute2 = data[27];
int reserved2 = BitConv.FromInt32(data, 28);
if (id != 0)
{
ErrorManager.SignalIgnorableError("VH: ID is wrong");
}
if (size < data.Length)
{
ErrorManager.SignalError("VH: Size field mismatch");
}
if ((size - data.Length) % 16 != 0)
{
ErrorManager.SignalError("VH: Size field is invalid");
}
int vbsize = (size - data.Length) / 16;
if (reserved1 != -0x1112)
{
ErrorManager.SignalIgnorableError("VH: Reserved value 1 is wrong");
}
if (programcount < 0 || programcount > 128)
{
ErrorManager.SignalError("VH: Program count is invalid");
}
if (tonecount < 0 || tonecount > 2048)
{
ErrorManager.SignalError("VH: Tone count is invalid");
}
if (wavecount < 0 || wavecount > 254)
{
ErrorManager.SignalError("VH: Wave count is invalid");
}
if (reserved2 != -1)
{
ErrorManager.SignalIgnorableError("VH: Reserved value 2 is wrong");
}
if (data.Length < 2592 + 32 * 16 * programcount)
{
ErrorManager.SignalError("VH: Data is too short");
}
Dictionary <int, VHProgram> programs = new Dictionary <int, VHProgram>();
for (int i = 0; i < 128; i++)
{
byte[] programdata = new byte [16];
Array.Copy(data, 32 + 16 * i, programdata, 0, 16);
if (programdata[0] == 0)
{
continue;
}
if (programs.Count == programcount)
{
ErrorManager.SignalError("VH: Program count field mismatch");
}
byte[] tonedata = new byte [32 * 16];
Array.Copy(data, 32 + 16 * 128 + 32 * 16 * programs.Count, tonedata, 0, 32 * 16);
programs.Add(i, VHProgram.Load(programdata, tonedata, isoldversion));
}
if (programs.Count != programcount)
{
ErrorManager.SignalError("VH: Program count field mismatch");
}
int[] waves = new int [wavecount];
for (int i = 0; i < wavecount; i++)
{
int wave = BitConv.FromInt16(data, 32 + 16 * 128 + 32 * 16 * programcount + 2 + i * 2);
if (wave % 2 != 0)
{
ErrorManager.SignalError("VH: Wave size is invalid");
}
waves[i] = wave / 2;
}
return(new VH(isoldversion, vbsize, volume, panning, attribute1, attribute2, programs, waves));
}
private static byte[] ReadChunk(byte[] data, ref int offset, out bool compressed)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (offset < 0 || offset > data.Length)
{
throw new ArgumentOutOfRangeException("offset");
}
if (data.Length < offset + 2)
{
ErrorManager.SignalError("NSF.ReadChunk: Data is too short");
}
byte[] result = new byte [Chunk.Length];
short magic = BitConv.FromInt16(data, offset);
if (magic == Chunk.Magic)
{
compressed = false;
if (data.Length < offset + Chunk.Length)
{
ErrorManager.SignalError("NSF.ReadChunk: Data is too short");
}
Array.Copy(data, offset, result, 0, Chunk.Length);
offset += Chunk.Length;
}
else if (magic == Chunk.CompressedMagic)
{
compressed = true;
int pos = 0;
if (data.Length < offset + 12)
{
ErrorManager.SignalError("NSF.ReadChunk: Data is too short");
}
short zero = BitConv.FromInt16(data, offset + 2);
int length = BitConv.FromInt32(data, offset + 4);
int skip = BitConv.FromInt32(data, offset + 8);
if (zero != 0)
{
ErrorManager.SignalIgnorableError("NSF.ReadChunk: Zero value is wrong");
}
if (length < 0 || length > Chunk.Length)
{
ErrorManager.SignalError("NSF.ReadChunk: Length field is invalid");
}
if (skip < 0)
{
ErrorManager.SignalError("NSF.ReadChunk: Skip value is negative");
}
offset += 12;
while (pos < length)
{
if (data.Length < offset + 1)
{
ErrorManager.SignalError("NSF.ReadChunk: Data is too short");
}
byte prefix = data[offset];
offset++;
if ((prefix & 0x80) != 0)
{
prefix &= 0x7F;
if (data.Length < offset + 1)
{
ErrorManager.SignalError("NSF.ReadChunk: Data is too short");
}
int seek = data[offset];
offset++;
int span = seek & 7;
seek >>= 3;
seek |= prefix << 5;
if (span == 7)
{
span = 64;
}
else
{
span += 3;
}
if (pos - seek < 0)
{
ErrorManager.SignalError("NSF.ReadChunk: Repeat begins out of bounds");
}
if (pos + span > Chunk.Length)
{
ErrorManager.SignalError("NSF.ReadChunk: Repeat ends out of bounds");
}
// Do NOT use Array.Copy as
// overlap is possible i.e. span
// may be greater than seek
for (int i = 0; i < span; i++)
{
result[pos + i] = result[pos - seek + i];
}
pos += span;
}
else
{
if (data.Length < offset + prefix)
{
ErrorManager.SignalError("NSF.ReadChunk: Data is too short");
}
Array.Copy(data, offset, result, pos, prefix);
offset += prefix;
pos += prefix;
}
}
if (data.Length < offset + skip)
{
ErrorManager.SignalError("NSF.ReadChunk: Data is too short");
}
offset += skip;
if (data.Length < offset + (Chunk.Length - length))
{
ErrorManager.SignalError("NSF.ReadChunk: Data is too short");
}
Array.Copy(data, offset, result, pos, Chunk.Length - length);
offset += (Chunk.Length - length);
}
else
{
compressed = false; // Fixes a stupid compile error
ErrorManager.SignalError("NSF.ReadChunk: Unknown magic number");
}
return(result);
}
public static NSF Load(byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
int offset = 0;
int?firstid = null;
List <UnprocessedChunk> prelude = null;
List <Chunk> chunks = new List <Chunk>();
List <bool> preludecompression = null;
List <bool> chunkcompression = new List <bool>();
while (offset < data.Length)
{
bool compressed;
byte[] chunkdata = ReadChunk(data, ref offset, out compressed);
UnprocessedChunk chunk = Chunk.Load(chunkdata);
if (firstid == null)
{
firstid = chunk.ID;
}
else if (firstid == chunk.ID)
{
if (prelude != null)
{
ErrorManager.SignalError("NSF: Double prelude");
}
prelude = new List <UnprocessedChunk>();
foreach (UnprocessedChunk unprocessedchunk in chunks)
{
prelude.Add(unprocessedchunk);
}
chunks.Clear();
preludecompression = chunkcompression;
chunkcompression = new List <bool>();
}
chunkcompression.Add(compressed);
if (prelude != null && chunks.Count < prelude.Count)
{
for (int i = 0; i < Chunk.Length; i++)
{
if (prelude[chunks.Count].Data[i] != chunk.Data[i])
{
ErrorManager.SignalIgnorableError("NSF: Prelude data mismatch");
break;
}
}
}
chunks.Add(chunk);
}
if (prelude != null && chunks.Count < prelude.Count)
{
ErrorManager.SignalIgnorableError("NSF: Prelude is longer than actual data");
}
if (prelude != null)
{
ErrorManager.SignalIgnorableError("NSF: Prelude saving is not yet implemented");
}
foreach (bool compressed in chunkcompression)
{
if (compressed)
{
ErrorManager.SignalIgnorableError("NSF: Non-prelude chunk was compressed");
}
}
return(new NSF(chunks));
}
public static Entity Load(byte[] data)
{
if (data.Length < 16)
{
ErrorManager.SignalError("Entity: Data is too short");
}
int length = BitConv.FromInt32(data, 0);
int blank1 = BitConv.FromInt32(data, 4);
int blank2 = BitConv.FromInt32(data, 8);
int propertycount = BitConv.FromInt32(data, 12);
if (length != data.Length)
{
ErrorManager.SignalIgnorableError("Entity: Length field mismatch");
}
if (blank1 != 0 || blank2 != 0)
{
ErrorManager.SignalIgnorableError("Entity: Blank value is wrong");
}
if (propertycount < 0 || propertycount > ushort.MaxValue)
{
ErrorManager.SignalError("Entity: Property count is invalid");
}
if (data.Length < 16 + propertycount * 8)
{
ErrorManager.SignalError("Entity: Data is too short");
}
Dictionary <short, EntityProperty> properties = new Dictionary <short, EntityProperty>();
for (int i = 0; i < propertycount; i++)
{
short id = BitConv.FromInt16(data, 16 + i * 8);
int offset = (ushort)BitConv.FromInt16(data, 18 + i * 8) + 12;
int nextoffset = (i == propertycount - 1) ? data.Length : ((ushort)BitConv.FromInt16(data, 26 + i * 8) + 12);
byte type = data[20 + i * 8];
byte elementsize = data[21 + i * 8];
short unknown = BitConv.FromInt16(data, 22 + i * 8);
if (offset > data.Length)
{
ErrorManager.SignalError("Entity: Property begins out of bounds");
}
if (nextoffset < offset)
{
ErrorManager.SignalError("Entity: Property ends before it begins");
}
if (nextoffset > data.Length)
{
ErrorManager.SignalError("Entity: Property ends out of bounds");
}
if (properties.ContainsKey(id))
{
ErrorManager.SignalIgnorableError("Entity: Duplicate property");
}
else
{
byte[] propertydata = new byte [nextoffset - offset];
Array.Copy(data, offset, propertydata, 0, propertydata.Length);
EntityProperty property = EntityProperty.Load(type, elementsize, unknown, i == propertycount - 1, propertydata);
properties.Add(id, property);
}
}
return(new Entity(properties));
}