route/vendor/github.com/klauspost/reedsolomon/galois_arm64.go

49 lines
918 B
Go
Raw Normal View History

2018-01-03 19:19:49 +00:00
//+build !noasm
//+build !appengine
// Copyright 2015, Klaus Post, see LICENSE for details.
// Copyright 2017, Minio, Inc.
package reedsolomon
//go:noescape
func galMulNEON(c uint64, in, out []byte)
//go:noescape
func galMulXorNEON(c uint64, in, out []byte)
func galMulSlice(c byte, in, out []byte, ssse3, avx2 bool) {
var done int
galMulNEON(uint64(c), in, out)
done = (len(in) >> 5) << 5
remain := len(in) - done
if remain > 0 {
mt := mulTable[c]
for i := done; i < len(in); i++ {
out[i] = mt[in[i]]
}
}
}
func galMulSliceXor(c byte, in, out []byte, ssse3, avx2 bool) {
var done int
galMulXorNEON(uint64(c), in, out)
done = (len(in) >> 5) << 5
remain := len(in) - done
if remain > 0 {
mt := mulTable[c]
for i := done; i < len(in); i++ {
out[i] ^= mt[in[i]]
}
}
}
// slice galois add
func sliceXor(in, out []byte, sse2 bool) {
for n, input := range in {
out[n] ^= input
}
}