mirror of
https://github.com/fumiama/blake2b-simd.git
synced 2026-06-06 02:30:28 +08:00
3a46db1cb4
With this change, following happens.
```
if sse {
compressSSE()
return
}
compressGeneric()
```
compressGeneric is used as a fallback when SSE is not detected.
62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
//+build !noasm
|
|
//+build !appengine
|
|
|
|
/*
|
|
* Minio Cloud Storage, (C) 2016 Minio, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package blake2b
|
|
|
|
//go:noescape
|
|
func blockSSE(p []uint8, in, iv, t, f, shffle, out []uint64)
|
|
|
|
func compressSSE(d *digest, p []uint8) {
|
|
h0, h1, h2, h3, h4, h5, h6, h7 := d.h[0], d.h[1], d.h[2], d.h[3], d.h[4], d.h[5], d.h[6], d.h[7]
|
|
|
|
in := make([]uint64, 8, 8)
|
|
out := make([]uint64, 8, 8)
|
|
|
|
shffle := make([]uint64, 2, 2)
|
|
// vector for PSHUFB instruction
|
|
shffle[0] = 0x0201000706050403
|
|
shffle[1] = 0x0a09080f0e0d0c0b
|
|
|
|
for len(p) >= BlockSize {
|
|
// Increment counter.
|
|
d.t[0] += BlockSize
|
|
if d.t[0] < BlockSize {
|
|
d.t[1]++
|
|
}
|
|
|
|
in[0], in[1], in[2], in[3], in[4], in[5], in[6], in[7] = h0, h1, h2, h3, h4, h5, h6, h7
|
|
|
|
blockSSE(p, in, iv[:], d.t[:], d.f[:], shffle, out)
|
|
|
|
h0, h1, h2, h3, h4, h5, h6, h7 = out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7]
|
|
|
|
p = p[BlockSize:]
|
|
}
|
|
|
|
d.h[0], d.h[1], d.h[2], d.h[3], d.h[4], d.h[5], d.h[6], d.h[7] = h0, h1, h2, h3, h4, h5, h6, h7
|
|
}
|
|
|
|
func compress(d *digest, p []uint8) {
|
|
if sse {
|
|
compressSSE(d, p)
|
|
return
|
|
}
|
|
compressGeneric(d, p)
|
|
}
|