// Copy up to length of bytes from input directly.
// This is used for uncompressed block.
public int CopyFrom(InputBuffer input, int length)
{
length = Math.Min(Math.Min(length, WindowSize - bytesUsed), input.AvailableBytes);
int copied;
// We might need wrap around to copy all bytes.
int tailLen = WindowSize - end;
if (length > tailLen)
{
// copy the first part
copied = input.CopyTo(window, end, tailLen);
if (copied == tailLen)
{
// only try to copy the second part if we have enough bytes in input
copied += input.CopyTo(window, 0, length - tailLen);
}
}
else
{
// only one copy is needed if there is no wrap around.
copied = input.CopyTo(window, end, length);
}
end = (end + copied) & WindowMask;
bytesUsed += copied;
return(copied);
}
public Int32 CopyFrom(InputBuffer input, Int32 length)
{
length = Math.Min(Math.Min(length, 32768 - this.bytesUsed), input.AvailableBytes);
Int32 num = 32768 - this.end;
Int32 num2;
if (length > num)
{
num2 = input.CopyTo(this.window, this.end, num);
if (num2 == num)
{
num2 += input.CopyTo(this.window, 0, length - num);
}
}
else
{
num2 = input.CopyTo(this.window, this.end, length);
}
this.end = (this.end + num2 & 32767);
this.bytesUsed += num2;
return(num2);
}
// Copy up to length of bytes from input directly.
// This is used for uncompressed block.
public int CopyFrom(InputBuffer input, int length) {
length = Math.Min(Math.Min(length, WindowSize - bytesUsed), input.AvailableBytes);
int copied;
// We might need wrap around to copy all bytes.
int tailLen = WindowSize - end;
if (length > tailLen) {
// copy the first part
copied = input.CopyTo(window, end, tailLen);
if (copied == tailLen) {
// only try to copy the second part if we have enough bytes in input
copied += input.CopyTo(window, 0, length - tailLen);
}
}
else {
// only one copy is needed if there is no wrap around.
copied = input.CopyTo(window, end, length);
}
end = (end + copied) & WindowMask;
bytesUsed += copied;
return copied;
}