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Replace remaining uses of zlib crc32 with Common/Hash.h

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This commit is contained in:
Pokechu22
2021-12-10 13:34:40 -08:00
parent 2652aed85c
commit 0c19f895d3
6 changed files with 38 additions and 23 deletions
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24
Source/Core/Common/Hash.cpp
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@ -534,11 +534,25 @@ void SetHash64Function()
u32 ComputeCRC32(std::string_view data)
{
const Bytef* buf = reinterpret_cast<const Bytef*>(data.data());
uInt len = static_cast<uInt>(data.size());
return ComputeCRC32(reinterpret_cast<const u8*>(data.data()), static_cast<u32>(data.size()));
}
u32 ComputeCRC32(const u8* ptr, u32 length)
{
return UpdateCRC32(StartCRC32(), ptr, length);
}
u32 StartCRC32()
{
return crc32(0L, Z_NULL, 0);
}
u32 UpdateCRC32(u32 crc, const u8* ptr, u32 length)
{
static_assert(std::is_same_v<const u8*, const Bytef*>);
static_assert(std::is_same_v<u32, uInt>);
// Use zlib's crc32 implementation to compute the hash
u32 hash = crc32(0L, Z_NULL, 0);
hash = crc32(hash, buf, len);
return hash;
// crc32_z (which takes a size_t) would be better, but it isn't available on Android
return crc32(crc, ptr, length);
}
} // namespace Common