diff options
Diffstat (limited to 'vendor/github.com/klauspost/compress/zstd/bitreader.go')
| -rw-r--r-- | vendor/github.com/klauspost/compress/zstd/bitreader.go | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/bitreader.go b/vendor/github.com/klauspost/compress/zstd/bitreader.go index 854458537..753d17df6 100644 --- a/vendor/github.com/klauspost/compress/zstd/bitreader.go +++ b/vendor/github.com/klauspost/compress/zstd/bitreader.go @@ -50,16 +50,23 @@ func (b *bitReader) getBits(n uint8) int { if n == 0 /*|| b.bitsRead >= 64 */ { return 0 } - return b.getBitsFast(n) + return int(b.get32BitsFast(n)) } -// getBitsFast requires that at least one bit is requested every time. +// get32BitsFast requires that at least one bit is requested every time. // There are no checks if the buffer is filled. -func (b *bitReader) getBitsFast(n uint8) int { +func (b *bitReader) get32BitsFast(n uint8) uint32 { const regMask = 64 - 1 v := uint32((b.value << (b.bitsRead & regMask)) >> ((regMask + 1 - n) & regMask)) b.bitsRead += n - return int(v) + return v +} + +func (b *bitReader) get16BitsFast(n uint8) uint16 { + const regMask = 64 - 1 + v := uint16((b.value << (b.bitsRead & regMask)) >> ((regMask + 1 - n) & regMask)) + b.bitsRead += n + return v } // fillFast() will make sure at least 32 bits are available. |