MyouProject/pixie
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This commit is contained in:
Ryan Oldenburg 2021-12-13 00:39:13 -06:00
parent ba6ea448e4
commit 38798e503b
2 changed files with 5 additions and 2 deletions
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5
src/pixie/blends.nim
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@ -477,10 +477,13 @@ proc maskNormal(backdrop, source: uint8): uint8 =
## Blending masks
blendAlpha(backdrop, source)
proc maskMask*(backdrop, source: uint8): uint8 =
proc maskMaskInline*(backdrop, source: uint8): uint8 {.inline.} =
## Masking masks
((backdrop.uint32 * source) div 255).uint8
proc maskMask(backdrop, source: uint8): uint8 =
maskMaskInline(backdrop, source)
proc maskSubtract(backdrop, source: uint8): uint8 =
((backdrop.uint32 * (255 - source)) div 255).uint8

2
src/pixie/images.nim
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@ -978,7 +978,7 @@ proc drawUber(
a.unsafe[x, y] = 0
elif source != 255:
let backdrop = a.unsafe[x, y]
a.unsafe[x, y] = maskMask(backdrop, source)
a.unsafe[x, y] = maskMaskInline(backdrop, source)
srcPos += dx
else:
for x in x ..< xMax: