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This commit is contained in:
Ryan Oldenburg 2022-05-16 19:05:13 -05:00
parent e4e94b84f9
commit 7afea49893
1 changed files with 5 additions and 1 deletions
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6
src/pixie/fileformats/jpeg.nim
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@ -91,7 +91,11 @@ template failInvalid(reason = "unable to load") =
template clampByte(x: int32): uint8 =
## Clamp integer into byte range.
clamp(x, 0, 0xFF).uint8
# clamp(x, 0, 0xFF).uint8
let
signBit = (cast[uint32](x) shr 31)
value = cast[uint32](x) and (signBit - 1)
min(value, 255).uint8
proc readUint8(state: var DecoderState): uint8 =
## Reads a byte from the input stream.