Timerix/DTLib.XXHash
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This commit is contained in:
Oleksandr Melnyk 2022-06-11 20:18:30 +03:00
parent 5d6d07a006
commit f0fa8aa22d
1 changed files with 12 additions and 16 deletions
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28
src/Standart.Hash.xxHash/__inline__xxHash32.cs
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@ -28,28 +28,26 @@ public partial class xxHash32
do
{
// XXH32_round
v1 += *((uint*) input) * XXH_PRIME32_2;
v1 += *((uint*) (input+0)) * XXH_PRIME32_2;
v1 = (v1 << 13) | (v1 >> (32 - 13));
v1 *= XXH_PRIME32_1;
input += 4;
// XXH32_round
v2 += *((uint*) input) * XXH_PRIME32_2;
v2 += *((uint*) (input+4)) * XXH_PRIME32_2;
v2 = (v2 << 13) | (v2 >> (32 - 13));
v2 *= XXH_PRIME32_1;
input += 4;
// XXH32_round
v3 += *((uint*) input) * XXH_PRIME32_2;
v3 += *((uint*) (input+8)) * XXH_PRIME32_2;
v3 = (v3 << 13) | (v3 >> (32 - 13));
v3 *= XXH_PRIME32_1;
input += 4;
// XXH32_round
v4 += *((uint*) input) * XXH_PRIME32_2;
v4 += *((uint*) (input+12)) * XXH_PRIME32_2;
v4 = (v4 << 13) | (v4 >> (32 - 13));
v4 *= XXH_PRIME32_1;
input += 4;
input += 16;
} while (input < limit);
h32 = ((v1 << 1) | (v1 >> (32 - 1))) +
@ -103,28 +101,26 @@ public partial class xxHash32
do
{
// XXH32_round
v1 += *((uint*)ptr) * XXH_PRIME32_2;
v1 += *((uint*)(ptr + 0)) * XXH_PRIME32_2;
v1 = (v1 << 13) | (v1 >> (32 - 13));
v1 *= XXH_PRIME32_1;
ptr += 4;
// XXH32_round
v2 += *((uint*)ptr) * XXH_PRIME32_2;
v2 += *((uint*)(ptr + 4)) * XXH_PRIME32_2;
v2 = (v2 << 13) | (v2 >> (32 - 13));
v2 *= XXH_PRIME32_1;
ptr += 4;
// XXH32_round
v3 += *((uint*)ptr) * XXH_PRIME32_2;
v3 += *((uint*)(ptr + 8)) * XXH_PRIME32_2;
v3 = (v3 << 13) | (v3 >> (32 - 13));
v3 *= XXH_PRIME32_1;
ptr += 4;
// XXH32_round
v4 += *((uint*)ptr) * XXH_PRIME32_2;
v4 += *((uint*)(ptr + 12)) * XXH_PRIME32_2;
v4 = (v4 << 13) | (v4 >> (32 - 13));
v4 *= XXH_PRIME32_1;
ptr += 4;
ptr += 16;
} while (ptr < limit);
}