protected override bool ReadFile(BinaryReader r)
{
var length = (int)r.BaseStream.Length;
if (length < FileHeader.Size) {
return false;
}
var bytes = r.ReadBytes((int)FileHeader.Size);
var seg = new ArraySegment<byte>(bytes);
Header.ReadFile(seg);
if (Header.HeaderCount == 0 || Header.TailerCount == 0 || Header.TailerCount != Header.HeaderCount) {
return false;
}
var skip = 770 * Header.PaletteCount;
var hstart = (int)(skip + FileHeader.Size);
var hlen = (int)(SectionHeader.Size * Header.HeaderCount);
var tstart = (int)(hstart + hlen + Header.BodySize);
var tlen = (int)(SectionTailer.Size * Header.TailerCount);
if (tstart + tlen < length) {
return false;
}
r.BaseStream.Seek(skip, SeekOrigin.Current);
var hbytes = r.ReadBytes(hlen);
for (var i = 0; i < Header.HeaderCount; ++i) {
seg = new ArraySegment<byte>(hbytes, i * SectionHeader.Size, SectionHeader.Size);
var S = new Section();
Sections.Add(S);
if (!S.Head.ReadFile(seg)) {
return false;
}
}
var SectionBodyData = r.ReadBytes((int)Header.BodySize);
var tbytes = r.ReadBytes(tlen);
for (var i = 0; i < Header.TailerCount; ++i) {
var S = Sections[i];
seg = new ArraySegment<byte>(tbytes, i * SectionTailer.Size, SectionTailer.Size);
if (!S.Tail.ReadFile(seg)) {
return false;
}
}
seg = new ArraySegment<byte>(SectionBodyData);
for (var i = 0; i < Header.TailerCount; ++i) {
var S = Sections[i];
S.PrepareBody();
S.ReadFile(seg);
}
return true;
}
