public BMG(string filename)
{
using (BinaryReaderX br = new BinaryReaderX(File.OpenRead(filename)))
{
br.BaseStream.Position = 8;
if (br.ReadInt32() == br.BaseStream.Length)
{
br.ByteOrder = byteOrder = ByteOrder.LittleEndian;
}
else
{
br.ByteOrder = byteOrder = ByteOrder.BigEndian;
}
br.BaseStream.Position = 0;
header = br.ReadStruct <MESGHeader>();
br.BaseStream.Position = 0x20;
var strs = new List <string>();
for (int i = 0; i < header.sectionCount; i++)
{
br.BaseStream.Position = (br.BaseStream.Position + align - 1) & ~(align - 1);
var magic = br.ReadString(4);
var secSize = br.ReadInt32();
switch (magic)
{
//Text Index Table
case "INF1":
var itemCount = br.ReadInt16();
var itemLength = br.ReadInt16();
br.BaseStream.Position += 4;
for (int j = 0; j < itemCount; j++)
{
items.Add(new Item {
strOffset = br.ReadInt32(), attr = br.ReadBytes(itemLength - 4)
});
}
break;
case "DAT1":
if (items[0].strOffset == 2)
{
usedEncoding = Enc.UTF16;
}
else if (items[0].strOffset == 1)
{
usedEncoding = Enc.SJIS;
}
using (var br2 = new BinaryReaderX(new MemoryStream(br.ReadBytes(secSize - 8))))
{
for (int j = 0; j < items.Count; j++)
{
br2.BaseStream.Position = items[j].strOffset;
var str = GetString(br2.ReadBytes((j == items.Count - 1) ?
(int)(br2.BaseStream.Length - br2.BaseStream.Position) :
(int)(items[j + 1].strOffset - br2.BaseStream.Position)));
strs.Add(str);
}
break;
}
case "MID1":
midUsed = true;
var idCount = br.ReadInt16();
midUnk1 = br.ReadInt16();
br.BaseStream.Position += 4;
for (int j = 0; j < idCount; j++)
{
var id = br.ReadInt32();
Labels.Add(new Label
{
Name = "Entry" + id,
Text = strs[j],
TextID = id
});
}
break;
}
}
if (Labels.Count <= 0)
{
for (int i = 0; i < strs.Count; i++)
{
Labels.Add(new Label
{
Name = "Entry" + i,
Text = strs[i],
TextID = i
});
}
}
}
}
public BMG(string filename)
{
using (BinaryReaderX br = new BinaryReaderX(File.OpenRead(filename)))
{
header = br.ReadStruct <MESGHeader>();
if (header.fileSize == br.BaseStream.Length)
{
br.ByteOrder = byteOrder = ByteOrder.LittleEndian;
}
else
{
br.ByteOrder = byteOrder = ByteOrder.BigEndian;
br.BaseStream.Position = 0;
header = br.ReadStruct <MESGHeader>(); // Reload the header now that the byte order is set.
}
br.BaseStream.Position = headerSize;
switch (header.encoding)
{
case BmgEncoding.ASCII:
encoding = Encoding.ASCII;
break;
case BmgEncoding.ShiftJIS:
encoding = Encoding.GetEncoding("shift-jis");
break;
case BmgEncoding.UTF16:
encoding = byteOrder == ByteOrder.BigEndian ? Encoding.BigEndianUnicode : Encoding.Unicode;
break;
default:
encoding = Encoding.Unicode;
break;
}
// INF1 (Info) section must be loaded first to properly calculate the size of each DAT1 (data) entry.
// I'm fairly certain the specification guarantees that the INF1 section will immediately follow the BMG header,
// but better safe than sorry. It won't cause performance issues for files that follow the specification.
do
{
// Since sections are 32-byte aligned, we can just search in 32 byte increments.
if (br.ReadString(4) != "INF1")
{
br.BaseStream.Position += 0x1C;
}
else
{
break;
}
} while (br.BaseStream.Position < br.BaseStream.Length);
// Parse the INF1 items.
var infSectionSize = br.ReadUInt32();
var itemCount = br.ReadUInt16();
var itemSize = br.ReadUInt16();
br.BaseStream.Position += 4;
for (var i = 0; i < itemCount; i++)
{
items.Add(new Item {
strOffset = br.ReadInt32(), attr = br.ReadBytes(itemSize - 4)
});
}
// Reset the stream position to immediately after the header.
br.BaseStream.Position = headerSize;
var strs = new List <string>();
for (var i = 0; i < header.sectionCount - 1; i++)
{
br.BaseStream.Position = (br.BaseStream.Position + align) & ~align;
var magic = br.ReadString(4);
var secSize = br.ReadInt32();
switch (magic)
{
case "DAT1":
using (var br2 = new BinaryReaderX(new MemoryStream(br.ReadBytes(secSize - 8))))
{
for (var j = 0; j < items.Count; j++)
{
br2.BaseStream.Position = items[j].strOffset;
var currentItem = items[j];
Item nextItem = null;
// Skip any 0 offset entries.
var idx = j + 1;
while (idx++ < items.Count)
{
nextItem = items[j + 1];
if (nextItem.strOffset != 0)
{
break;
}
nextItem = null;
}
var size = (nextItem?.strOffset ?? (int)br.BaseStream.Length) - currentItem.strOffset;
strs.Add(GetString(br2.ReadBytes(size)));
}
}
break;
case "MID1":
midUsed = true;
var idCount = br.ReadInt16();
midUnk1 = br.ReadInt16();
br.BaseStream.Position += 4;
for (var j = 0; j < idCount; j++)
{
var id = br.ReadInt32();
Labels.Add(new Label
{
Name = "Entry" + id,
Text = strs[j],
TextID = id
});
}
break;
}
}
if (Labels.Count <= 0)
{
for (int i = 0; i < strs.Count; i++)
{
Labels.Add(new Label
{
Name = "Entry" + i,
Text = strs[i],
TextID = i
});
}
}
}
}
