mirror of
https://github.com/hanzoai/traces.git
synced 2026-10-30 18:20:41 +00:00
Martin DisibioandGitHub
9aaf851965
* Upgrade parquet-go to latest for StructTag option * Upgrade parquet-go to get latest alloc fix
22 lines
452 B
Go
22 lines
452 B
Go
//go:build purego || (!amd64 && !arm64)
|
|
|
|
package bitpack
|
|
|
|
func unpackInt32(dst []int32, src []byte, bitWidth uint) {
|
|
bits := unsafecastBytesToUint32(src)
|
|
bitMask := uint32(1<<bitWidth) - 1
|
|
bitOffset := uint(0)
|
|
|
|
for n := range dst {
|
|
i := bitOffset / 32
|
|
j := bitOffset % 32
|
|
d := (bits[i] & (bitMask << j)) >> j
|
|
if j+bitWidth > 32 {
|
|
k := 32 - j
|
|
d |= (bits[i+1] & (bitMask >> k)) << k
|
|
}
|
|
dst[n] = int32(d)
|
|
bitOffset += bitWidth
|
|
}
|
|
}
|