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This commit is contained in:
Ryan Oldenburg 2022-06-20 21:48:18 -05:00
parent 7cfb124c2e
commit 432dce4902
1 changed files with 7 additions and 7 deletions
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14
src/pixie/masks.nim
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@ -93,7 +93,7 @@ proc minifyBy2*(mask: Mask, power = 1): Mask {.raises: [PixieError].} =
firstByte = cast[M128i](
[uint8.high, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
)
for _ in countup(0, result.width - 16, 8):
while x <= result.width - 16:
let
top = mm_loadu_si128(src.data[src.dataIndex(x * 2, y * 2 + 0)].addr)
btm = mm_loadu_si128(src.data[src.dataIndex(x * 2, y * 2 + 1)].addr)
@ -101,22 +101,22 @@ proc minifyBy2*(mask: Mask, power = 1): Mask {.raises: [PixieError].} =
btmShifted = mm_srli_si128(btm, 1)
topEven = mm_andnot_si128(oddMask, top)
topOdd = mm_srli_epi16(mm_and_si128(top, oddMask), 8)
topOdd = mm_srli_epi16(top, 8)
btmEven = mm_andnot_si128(oddMask, btm)
btmOdd = mm_srli_epi16(mm_and_si128(btm, oddMask), 8)
btmOdd = mm_srli_epi16(btm, 8)
topShiftedEven = mm_andnot_si128(oddMask, topShifted)
topShiftedOdd = mm_srli_epi16(mm_and_si128(topShifted, oddMask), 8)
topShiftedOdd = mm_srli_epi16(topShifted, 8)
btmShiftedEven = mm_andnot_si128(oddMask, btmShifted)
btmShiftedOdd = mm_srli_epi16(mm_and_si128(btmShifted, oddMask), 8)
btmShiftedOdd = mm_srli_epi16(btmShifted, 8)
topAddedEven = mm_add_epi16(topEven, topShiftedEven)
btmAddedEven = mm_add_epi16(btmEven, btmShiftedEven)
topAddedOdd = mm_add_epi16(topOdd, topShiftedOdd)
bottomAddedOdd = mm_add_epi16(btmOdd, btmShiftedOdd)
btmAddedOdd = mm_add_epi16(btmOdd, btmShiftedOdd)
addedEven = mm_add_epi16(topAddedEven, btmAddedEven)
addedOdd = mm_add_epi16(topAddedOdd, bottomAddedOdd)
addedOdd = mm_add_epi16(topAddedOdd, btmAddedOdd)
addedEvenDiv4 = mm_srli_epi16(addedEven, 2)
addedOddDiv4 = mm_srli_epi16(addedOdd, 2)