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simpler

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This commit is contained in:
Ryan Oldenburg 2022-06-15 16:20:59 -05:00
parent 6734f5eef9
commit 8797658b47
1 changed files with 6 additions and 6 deletions
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12
src/pixie/fileformats/png.nim
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@ -235,7 +235,7 @@ proc decodeImageData(
var bytePos, bitPos: int
for y in 0 ..< header.height:
for x in 0 ..< header.width:
var value = unfiltered.readUint8(bytePos)
var value = unfiltered[bytePos]
case header.bitDepth:
of 1:
value = (value shr (7 - bitPos)) and 1
@ -299,7 +299,7 @@ proc decodeImageData(
var bytePos, bitPos: int
for y in 0 ..< header.height:
for x in 0 ..< header.width:
var value = unfiltered.readUint8(bytePos)
var value = unfiltered[bytePos]
case header.bitDepth:
of 1:
value = (value shr (7 - bitPos)) and 1
@ -338,10 +338,10 @@ proc decodeImageData(
for i in 0 ..< header.height * header.width:
let bytePos = i * 2
result[i] = rgba(
unfiltered.readUint8(bytePos),
unfiltered.readUint8(bytePos),
unfiltered.readUint8(bytePos),
unfiltered.readUint8(bytePos + 1)
unfiltered[bytePos],
unfiltered[bytePos],
unfiltered[bytePos],
unfiltered[bytePos + 1]
)
of 6:
copyMem(result[0].addr, unfiltered[0].unsafeAddr, unfiltered.len)