ShuriZma
/
pcsx2
mirror of https://github.com/PCSX2/pcsx2.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

SaveState: Switch to zstd compression 

zstd can be 10x+ fast compressing, 2x+ decompressing at default levels,
and provides slightly better ratios.

There's a hidden option in the config, SavestateZstdCompression, which
you can set to false if you want to use deflate.
This commit is contained in:
Connor McLaughlin 2022-04-12 18:41:22 +10:00 committed by refractionpcsx2
parent a22c634cd4
commit 6991f819f3
3 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
pcsx2/Config.h
View File

@ -939,6 +939,7 @@ struct Pcsx2Config
// when enabled uses BOOT2 injection, skipping sony bios splashes
UseBOOT2Injection : 1,
BackupSavestate : 1,
SavestateZstdCompression : 1,
// enables simulated ejection of memory cards when loading savestates
McdEnableEjection : 1,
McdFolderAutoManage : 1,

2
pcsx2/Pcsx2Config.cpp
View File

@ -1021,6 +1021,7 @@ Pcsx2Config::Pcsx2Config()
EnableGameFixes = true;
#endif
BackupSavestate = true;
SavestateZstdCompression = true;
#ifdef __WXMSW__
McdCompressNTFS = true;
@ -1060,6 +1061,7 @@ void Pcsx2Config::LoadSave(SettingsWrapper& wrap)
SettingsWrapBitBool(HostFs);
SettingsWrapBitBool(BackupSavestate);
SettingsWrapBitBool(SavestateZstdCompression);
SettingsWrapBitBool(McdEnableEjection);
SettingsWrapBitBool(McdFolderAutoManage);
SettingsWrapBitBool(MultitapPort0_Enabled);

7
pcsx2/SaveState.cpp
View File

@ -806,10 +806,9 @@ static void ZipStateToDiskOnThread(std::unique_ptr<ArchiveEntryList> srclist, st
// discard zip file if we fail saving something
ScopedGuard zip_discarder([&zf]() { zip_discard(zf.release()); });
// use deflate compression by default
// TODO: switch to zstd
constexpr u32 compression = ZIP_CM_DEFLATE;
constexpr u32 compression_level = 0;
// use zstd compression, it can be 10x+ faster for saving.
const u32 compression = EmuConfig.SavestateZstdCompression ? ZIP_CM_ZSTD : ZIP_CM_DEFLATE;
const u32 compression_level = 0;
// version indicator
{