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This commit is contained in:
Ryan Oldenburg 2021-02-11 22:12:12 -06:00
parent 70ab79b607
commit 243f9a3ba1
1 changed files with 8 additions and 8 deletions

16
src/pixie/paths.nim
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@ -965,8 +965,8 @@ proc fillShapes(
when defined(amd64) and not defined(pixieNoSimd):
# When supported, SIMD blend as much as possible
let
coverageMask1 = cast[M128i]([uint32.high, 0, 0, 0]) # First 32 bits
coverageMask2 = mm_set1_epi32(cast[int32](0x000000ff)) # Only `r`
first32 = cast[M128i]([uint32.high, 0, 0, 0]) # First 32 bits
redMask = mm_set1_epi32(cast[int32](0x000000ff)) # Only `r`
oddMask = mm_set1_epi16(cast[int16](0xff00))
div255 = mm_set1_epi16(cast[int16](0x8081))
v255 = mm_set1_epi32(255)
@ -974,7 +974,7 @@ proc fillShapes(
for _ in countup(x, coverages.len - 16, 16):
var coverage = mm_loadu_si128(coverages[x].addr)
coverage = mm_and_si128(coverage, coverageMask1)
coverage = mm_and_si128(coverage, first32)
let eqZero = mm_cmpeq_epi16(coverage, mm_setzero_si128())
if mm_movemask_epi8(eqZero) != 0xffff:
@ -985,10 +985,10 @@ proc fillShapes(
coverage = mm_shuffle_epi32(coverage, MM_SHUFFLE(1, 1, 0, 0))
var
a = mm_and_si128(coverage, coverageMask1)
b = mm_and_si128(coverage, mm_slli_si128(coverageMask1, 4))
c = mm_and_si128(coverage, mm_slli_si128(coverageMask1, 8))
d = mm_and_si128(coverage, mm_slli_si128(coverageMask1, 12))
a = mm_and_si128(coverage, first32)
b = mm_and_si128(coverage, mm_slli_si128(first32, 4))
c = mm_and_si128(coverage, mm_slli_si128(first32, 8))
d = mm_and_si128(coverage, mm_slli_si128(first32, 12))
# Shift the coverages to `r`
a = mm_srli_si128(a, 2)
@ -997,7 +997,7 @@ proc fillShapes(
coverage = mm_and_si128(
mm_or_si128(mm_or_si128(a, b), mm_or_si128(c, d)),
coverageMask2
redMask
)
if mm_movemask_epi8(mm_cmpeq_epi32(coverage, v255)) != 0xffff: