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NetPlay save data synchronization

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This adds the functionality of sending the host's save data (raw memory
cards, as well as GCI files and Wii saves with a matching GameID) to
all other clients. The data is compressed using LZO1X to greatly reduce
its size while keeping compression/decompression fast. Save
synchronization is enabled by default, and toggleable with a checkbox
in the NetPlay dialog.

On clicking start, if the option is enabled, game boot will be delayed
until all players have received the save data sent by the host. If any
player fails to receive it properly, boot will be cancelled to prevent
desyncs.
This commit is contained in:
Techjar 2018-07-04 17:01:50 -04:00
parent f5e8af7b6c
commit 4407854e9c
32 changed files with 1250 additions and 209 deletions
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54
Source/Core/Core/ConfigManager.cpp
View file

@ -227,8 +227,6 @@ void SConfig::SaveCoreSettings(IniFile& ini)
core->Set("AudioLatency", iLatency);
core->Set("AudioStretch", m_audio_stretch);
core->Set("AudioStretchMaxLatency", m_audio_stretch_max_latency);
core->Set("MemcardAPath", m_strMemoryCardA);
core->Set("MemcardBPath", m_strMemoryCardB);
core->Set("AgpCartAPath", m_strGbaCartA);
core->Set("AgpCartBPath", m_strGbaCartB);
core->Set("SlotA", m_EXIDevice[0]);
@ -505,8 +503,6 @@ void SConfig::LoadCoreSettings(IniFile& ini)
core->Get("AudioLatency", &iLatency, 20);
core->Get("AudioStretch", &m_audio_stretch, false);
core->Get("AudioStretchMaxLatency", &m_audio_stretch_max_latency, 80);
core->Get("MemcardAPath", &m_strMemoryCardA);
core->Get("MemcardBPath", &m_strMemoryCardB);
core->Get("AgpCartAPath", &m_strGbaCartA);
core->Get("AgpCartBPath", &m_strGbaCartB);
core->Get("SlotA", (int*)&m_EXIDevice[0], ExpansionInterface::EXIDEVICE_MEMORYCARDFOLDER);
@ -947,62 +943,12 @@ bool SConfig::SetPathsAndGameMetadata(const BootParameters& boot)
// Set up paths
const std::string region_dir = GetDirectoryForRegion(ToGameCubeRegion(m_region));
CheckMemcardPath(SConfig::GetInstance().m_strMemoryCardA, region_dir, true);
CheckMemcardPath(SConfig::GetInstance().m_strMemoryCardB, region_dir, false);
m_strSRAM = File::GetUserPath(F_GCSRAM_IDX);
m_strBootROM = GetBootROMPath(region_dir);
return true;
}
void SConfig::CheckMemcardPath(std::string& memcardPath, const std::string& gameRegion,
bool isSlotA)
{
std::string ext("." + gameRegion + ".raw");
if (memcardPath.empty())
{
// Use default memcard path if there is no user defined name
std::string defaultFilename = isSlotA ? GC_MEMCARDA : GC_MEMCARDB;
memcardPath = File::GetUserPath(D_GCUSER_IDX) + defaultFilename + ext;
}
else
{
std::string filename = memcardPath;
std::string region = filename.substr(filename.size() - 7, 3);
bool hasregion = false;
hasregion |= region.compare(USA_DIR) == 0;
hasregion |= region.compare(JAP_DIR) == 0;
hasregion |= region.compare(EUR_DIR) == 0;
if (!hasregion)
{
// filename doesn't have region in the extension
if (File::Exists(filename))
{
// If the old file exists we are polite and ask if we should copy it
std::string oldFilename = filename;
filename.replace(filename.size() - 4, 4, ext);
if (PanicYesNoT("Memory Card filename in Slot %c is incorrect\n"
"Region not specified\n\n"
"Slot %c path was changed to\n"
"%s\n"
"Would you like to copy the old file to this new location?\n",
isSlotA ? 'A' : 'B', isSlotA ? 'A' : 'B', filename.c_str()))
{
if (!File::Copy(oldFilename, filename))
PanicAlertT("Copy failed");
}
}
memcardPath = filename; // Always correct the path!
}
else if (region.compare(gameRegion) != 0)
{
// filename has region, but it's not == gameRegion
// Just set the correct filename, the EXI Device will create it if it doesn't exist
memcardPath = filename.replace(filename.size() - ext.size(), ext.size(), ext);
}
}
}
DiscIO::Language SConfig::GetCurrentLanguage(bool wii) const
{
int language_value;