Reece Wilson
f43251c8fc
[+] AuFS::UpdateTimes
[+] AuFS::UpdateFileTimes
[+] AuFS::CompressEx
[*] AuFS::Compress now rejects files that look to be already compressed
[+] AuFS::DecompressEx
[+] AuFS::Create
[+] AuFS::WriteNewFile
[+] AuFS::WriteNewString
[+] AuFs::FileAttrsList
[+] AuFs::FileAttrsGet
[+] AuFs::FileAttrsSet
[+] DirectoryLogger::uMaxLogsOrZeroBeforeCompress
[+] ISocketChannel.AddEventListener
[+] ISocketChannel.AddEventListener
[+] DirectoryLogger.uMaxLogsOrZeroBeforeCompress
[*] Fix UNIX regression
[*] Fix up stream socket channel realloc IPC
[*] Fix shutdown regression in pretty much everything thanks to 8ff81df1's dumbass fix
(fixes fence regression on shutdown)
[*] Fix DirDeleterEx formatting of reported failed paths
[*] Fix up file not truncated if already exists bugs. Extended and alternative apis added.
[*] Fix ICompressionStream::ReadEx returning the wrong read value
[+] Legacy compression API can now self-correct once newer stream processor objects are added
100 lines
2.1 KiB
C++
100 lines
2.1 KiB
C++
/***
|
|
Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
|
|
|
|
File: AuCompression.hpp
|
|
Date: 2021-6-17
|
|
Author: Reece
|
|
***/
|
|
#pragma once
|
|
|
|
namespace Aurora::Compression
|
|
{
|
|
static const AuUInt64 kChunkSize = 128 * 1024;
|
|
|
|
/// * compression type + bits -> internal zlib windowBits
|
|
static bool CompressionLevelFromExternalApi(const DecompressInfo &info, AuInt8 &out)
|
|
{
|
|
out = 0;
|
|
|
|
if (!info.bHasWindowbits)
|
|
{
|
|
if (info.alg == ECompressionType::eGZip)
|
|
{
|
|
out = 15 | 16;
|
|
}
|
|
else if (info.alg == ECompressionType::eDeflate)
|
|
{
|
|
out = -15;
|
|
}
|
|
else
|
|
{
|
|
out = 15;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (info.uWindowBits < 0)
|
|
{
|
|
return {};
|
|
}
|
|
|
|
if (info.uWindowBits > 15)
|
|
{
|
|
return {};
|
|
}
|
|
|
|
if (info.alg == ECompressionType::eGZip)
|
|
{
|
|
out = info.uWindowBits | 16;
|
|
}
|
|
else if (info.alg == ECompressionType::eDeflate)
|
|
{
|
|
out = 0 - info.uWindowBits;
|
|
}
|
|
else
|
|
{
|
|
out = info.uWindowBits;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/// * compression type + bits -> internal zlib windowBits
|
|
static bool CompressionLevelFromExternalApi(const CompressInfo &info, AuInt8 &out)
|
|
{
|
|
out = 0;
|
|
|
|
if (!info.uWindowBits)
|
|
{
|
|
if (info.type == ECompressionType::eGZip)
|
|
{
|
|
out = 15 | 16;
|
|
}
|
|
else if (info.type == ECompressionType::eDeflate)
|
|
{
|
|
out = -15;
|
|
}
|
|
else
|
|
{
|
|
out = 15;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (info.type == ECompressionType::eGZip)
|
|
{
|
|
out = info.uWindowBits | 16;
|
|
}
|
|
else if (info.type == ECompressionType::eDeflate)
|
|
{
|
|
out = 0 - info.uWindowBits;
|
|
}
|
|
else
|
|
{
|
|
out = info.uWindowBits;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
} |