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Implement Qualcomm Sahara VIP and fix a few bugs

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* Qualcomm Sahara VIP
* Project Cleanup
* Allow unlocking an already unlocked phone
This commit is contained in:
Gustave Monce
2021-08-11 14:33:49 +02:00
parent 9f4c92f437
commit c5fcb1ec8d
72 changed files with 987 additions and 861 deletions
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7zip/Compress/LZ/LzBinTree.cs
+27 -36
View File
@@ -33,7 +33,7 @@ namespace SevenZip.Compression.LZ
public void SetType(int numHashBytes)
{
HASH_ARRAY = (numHashBytes > 2);
HASH_ARRAY = numHashBytes > 2;
if (HASH_ARRAY)
{
kNumHashDirectBytes = 0;
@@ -97,7 +97,7 @@ namespace SevenZip.Compression.LZ
UInt32 windowReservSize = ((historySize + keepAddBufferBefore +
matchMaxLen + keepAddBufferAfter) / 2) + 256;
base.Create(historySize + keepAddBufferBefore, matchMaxLen + keepAddBufferAfter, windowReservSize);
Create(historySize + keepAddBufferBefore, matchMaxLen + keepAddBufferAfter, windowReservSize);
_matchMaxLen = matchMaxLen;
@@ -112,10 +112,10 @@ namespace SevenZip.Compression.LZ
if (HASH_ARRAY)
{
hs = historySize - 1;
hs |= (hs >> 1);
hs |= (hs >> 2);
hs |= (hs >> 4);
hs |= (hs >> 8);
hs |= hs >> 1;
hs |= hs >> 2;
hs |= hs >> 4;
hs |= hs >> 8;
hs >>= 1;
hs |= 0xFFFF;
if (hs > (1 << 24))
@@ -160,13 +160,13 @@ namespace SevenZip.Compression.LZ
{
UInt32 temp = CRC.Table[_bufferBase[cur]] ^ _bufferBase[cur + 1];
hash2Value = temp & (kHash2Size - 1);
temp ^= ((UInt32)(_bufferBase[cur + 2]) << 8);
temp ^= (UInt32)_bufferBase[cur + 2] << 8;
hash3Value = temp & (kHash3Size - 1);
hashValue = (temp ^ (CRC.Table[_bufferBase[cur + 3]] << 5)) & _hashMask;
}
else
{
hashValue = _bufferBase[cur] ^ ((UInt32)(_bufferBase[cur + 1]) << 8);
hashValue = _bufferBase[cur] ^ ((UInt32)_bufferBase[cur + 1] << 8);
}
UInt32 curMatch = _hash[kFixHashSize + hashValue];
@@ -176,28 +176,22 @@ namespace SevenZip.Compression.LZ
UInt32 curMatch3 = _hash[kHash3Offset + hash3Value];
_hash[hash2Value] = _pos;
_hash[kHash3Offset + hash3Value] = _pos;
if (curMatch2 > matchMinPos)
if (curMatch2 > matchMinPos && _bufferBase[_bufferOffset + curMatch2] == _bufferBase[cur])
{
if (_bufferBase[_bufferOffset + curMatch2] == _bufferBase[cur])
{
distances[offset++] = maxLen = 2;
distances[offset++] = _pos - curMatch2 - 1;
}
distances[offset++] = maxLen = 2;
distances[offset++] = _pos - curMatch2 - 1;
}
if (curMatch3 > matchMinPos)
if (curMatch3 > matchMinPos && _bufferBase[_bufferOffset + curMatch3] == _bufferBase[cur])
{
if (_bufferBase[_bufferOffset + curMatch3] == _bufferBase[cur])
if (curMatch3 == curMatch2)
{
if (curMatch3 == curMatch2)
{
offset -= 2;
}
distances[offset++] = maxLen = 3;
distances[offset++] = _pos - curMatch3 - 1;
curMatch2 = curMatch3;
offset -= 2;
}
distances[offset++] = maxLen = 3;
distances[offset++] = _pos - curMatch3 - 1;
curMatch2 = curMatch3;
}
if (offset != 0 && curMatch2 == curMatch)
@@ -210,21 +204,18 @@ namespace SevenZip.Compression.LZ
_hash[kFixHashSize + hashValue] = _pos;
UInt32 ptr0 = (_cyclicBufferPos << 1) + 1;
UInt32 ptr1 = (_cyclicBufferPos << 1);
UInt32 ptr1 = _cyclicBufferPos << 1;
UInt32 len0, len1;
len0 = len1 = kNumHashDirectBytes;
if (kNumHashDirectBytes != 0)
if (kNumHashDirectBytes != 0 && curMatch > matchMinPos)
{
if (curMatch > matchMinPos)
if (_bufferBase[_bufferOffset + curMatch + kNumHashDirectBytes] !=
_bufferBase[cur + kNumHashDirectBytes])
{
if (_bufferBase[_bufferOffset + curMatch + kNumHashDirectBytes] !=
_bufferBase[cur + kNumHashDirectBytes])
{
distances[offset++] = maxLen = kNumHashDirectBytes;
distances[offset++] = _pos - curMatch - 1;
}
distances[offset++] = maxLen = kNumHashDirectBytes;
distances[offset++] = _pos - curMatch - 1;
}
}
@@ -314,21 +305,21 @@ namespace SevenZip.Compression.LZ
UInt32 temp = CRC.Table[_bufferBase[cur]] ^ _bufferBase[cur + 1];
UInt32 hash2Value = temp & (kHash2Size - 1);
_hash[hash2Value] = _pos;
temp ^= ((UInt32)(_bufferBase[cur + 2]) << 8);
temp ^= (UInt32)_bufferBase[cur + 2] << 8;
UInt32 hash3Value = temp & (kHash3Size - 1);
_hash[kHash3Offset + hash3Value] = _pos;
hashValue = (temp ^ (CRC.Table[_bufferBase[cur + 3]] << 5)) & _hashMask;
}
else
{
hashValue = _bufferBase[cur] ^ ((UInt32)(_bufferBase[cur + 1]) << 8);
hashValue = _bufferBase[cur] ^ ((UInt32)_bufferBase[cur + 1] << 8);
}
UInt32 curMatch = _hash[kFixHashSize + hashValue];
_hash[kFixHashSize + hashValue] = _pos;
UInt32 ptr0 = (_cyclicBufferPos << 1) + 1;
UInt32 ptr1 = (_cyclicBufferPos << 1);
UInt32 ptr1 = _cyclicBufferPos << 1;
UInt32 len0, len1;
len0 = len1 = kNumHashDirectBytes;
7zip/Compress/LZ/LzInWindow.cs
+3 -6
View File
@@ -50,7 +50,7 @@ namespace SevenZip.Compression.LZ
while (true)
{
int size = (int)((0 - _bufferOffset) + _blockSize - _streamPos);
int size = (int)(0 - _bufferOffset + _blockSize - _streamPos);
if (size == 0)
{
return;
@@ -125,12 +125,9 @@ namespace SevenZip.Compression.LZ
// index + limit have not to exceed _keepSizeAfter;
public UInt32 GetMatchLen(Int32 index, UInt32 distance, UInt32 limit)
{
if (_streamEndWasReached)
if (_streamEndWasReached && _pos + index + limit > _streamPos)
{
if (_pos + index + limit > _streamPos)
{
limit = _streamPos - (UInt32)(_pos + index);
}
limit = _streamPos - (UInt32)(_pos + index);
}
distance++;