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Detect GC region based on the actual region value

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The county code isn't 100% reliable for detecting the region.
For instance, some games released in Korea have the country
code E even though they're region-locked to NTSC-J consoles.

This commit makes the GC disc region detection match the Wii
disc region detection (apart from the region value being in
a different place on the disc).
This commit is contained in:
JosJuice
2017-07-16 13:53:22 +02:00
parent fe10e8aa6c
commit ebf0f64a01
2 changed files with 12 additions and 6 deletions
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14
Source/Core/DiscIO/VolumeGC.cpp
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@ -60,14 +60,20 @@ std::string VolumeGC::GetGameID(const Partition& partition) const
Region VolumeGC::GetRegion() const
{
const std::optional<u8> country_code = ReadSwapped<u8>(3, PARTITION_NONE);
return country_code ? RegionSwitchGC(*country_code) : Region::UNKNOWN_REGION;
const std::optional<u32> region_code = ReadSwapped<u32>(0x458, PARTITION_NONE);
return region_code ? static_cast<Region>(*region_code) : Region::UNKNOWN_REGION;
}
Country VolumeGC::GetCountry(const Partition& partition) const
{
const std::optional<u8> country_code = ReadSwapped<u8>(3, partition);
return country_code ? CountrySwitch(*country_code) : Country::COUNTRY_UNKNOWN;
// The 0 that we use as a default value is mapped to COUNTRY_UNKNOWN and UNKNOWN_REGION
const u8 country_byte = ReadSwapped<u8>(3, partition).value_or(0);
const Region region = GetRegion();
if (RegionSwitchGC(country_byte) != region)
return TypicalCountryForRegion(region);
return CountrySwitch(country_byte);
}
std::string VolumeGC::GetMakerID(const Partition& partition) const