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ZLIB: More faster.

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This commit is contained in:
Jeroen van Rijn
2021-06-23 22:18:17 +02:00
parent 342adb627d
commit 1cfe226686
4 changed files with 58 additions and 14 deletions
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core/hash/hash.odin
+11 -2
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@@ -2,16 +2,18 @@ package hash
import "core:mem"
@(optimization_mode="speed")
adler32 :: proc(data: []byte, seed := u32(1)) -> u32 {
ADLER_CONST :: 65521;
a, b: u32 = seed & 0xFFFF, seed >> 16;
for x in data {
#no_bounds_check for x in data {
a = (a + u32(x)) % ADLER_CONST;
b = (b + a) % ADLER_CONST;
}
return (b << 16) | a;
}
@(optimization_mode="speed")
djb2 :: proc(data: []byte) -> u32 {
hash: u32 = 5381;
for b in data {
@@ -20,6 +22,7 @@ djb2 :: proc(data: []byte) -> u32 {
return hash;
}
@(optimization_mode="speed")
fnv32 :: proc(data: []byte) -> u32 {
h: u32 = 0x811c9dc5;
for b in data {
@@ -28,6 +31,7 @@ fnv32 :: proc(data: []byte) -> u32 {
return h;
}
@(optimization_mode="speed")
fnv64 :: proc(data: []byte) -> u64 {
h: u64 = 0xcbf29ce484222325;
for b in data {
@@ -36,6 +40,7 @@ fnv64 :: proc(data: []byte) -> u64 {
return h;
}
@(optimization_mode="speed")
fnv32a :: proc(data: []byte) -> u32 {
h: u32 = 0x811c9dc5;
for b in data {
@@ -44,6 +49,7 @@ fnv32a :: proc(data: []byte) -> u32 {
return h;
}
@(optimization_mode="speed")
fnv64a :: proc(data: []byte) -> u64 {
h: u64 = 0xcbf29ce484222325;
for b in data {
@@ -52,6 +58,7 @@ fnv64a :: proc(data: []byte) -> u64 {
return h;
}
@(optimization_mode="speed")
jenkins :: proc(data: []byte) -> u32 {
hash: u32 = 0;
for b in data {
@@ -65,6 +72,7 @@ jenkins :: proc(data: []byte) -> u32 {
return hash;
}
@(optimization_mode="speed")
murmur32 :: proc(data: []byte) -> u32 {
c1_32: u32 : 0xcc9e2d51;
c2_32: u32 : 0x1b873593;
@@ -114,6 +122,7 @@ murmur32 :: proc(data: []byte) -> u32 {
return h1;
}
@(optimization_mode="speed")
murmur64 :: proc(data: []byte) -> u64 {
SEED :: 0x9747b28c;
@@ -219,7 +228,7 @@ murmur64 :: proc(data: []byte) -> u64 {
}
}
@(optimization_mode="speed")
sdbm :: proc(data: []byte) -> u32 {
hash: u32 = 0;
for b in data {