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Backed out changeset: 92ab3497a8f2

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This commit is contained in:
Grigory Chudov
2013-03-24 19:19:19 -04:00
parent 79b0cb069b
commit 86142e797c
3 changed files with 128 additions and 267 deletions
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42
CUETools.Codecs/BitReader.cs
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@@ -71,11 +71,11 @@ namespace CUETools.Codecs
#endregion
private byte* buffer_m;
public byte* bptr_m;
public int buffer_len_m;
public int have_bits_m;
public ulong cache_m;
public ushort crc16_m;
private byte* bptr_m;
private int buffer_len_m;
private int have_bits_m;
private ulong cache_m;
private ushort crc16_m;
public int Position
{
@@ -296,38 +296,6 @@ namespace CUETools.Codecs
return v;
}
public void read_int_block(int n, int k, int* r)
{
fill();
byte* bptr = bptr_m;
int have_bits = have_bits_m;
ulong cache = cache_m;
ushort crc = crc16_m;
fixed (ushort* t = Crc16.table)
{
for (int i = n; i > 0; i--)
{
while (have_bits < 56)
{
have_bits += 8;
byte b = *(bptr++);
cache |= (ulong)b << (64 - have_bits);
crc = (ushort)((crc << 8) ^ t[(crc >> 8) ^ b]);
}
int res = (int)((long)cache >> 64 - k);
cache <<= k;
have_bits -= k;
*(r++) = res;
}
}
have_bits_m = have_bits;
cache_m = cache;
bptr_m = bptr;
crc16_m = crc;
}
public void read_rice_block(int n, int k, int* r)
{
fill();