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This commit is contained in:
Ryan Oldenburg 2021-02-07 21:10:57 -06:00
parent de1b1b95ca
commit 46fe96569e
1 changed files with 4 additions and 10 deletions
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14
src/pixie/images.nim
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@ -186,17 +186,11 @@ proc minifyBy2*(image: Image, power = 1): Image =
c = image.getRgbaUnsafe(x * 2 + 1, y * 2 + 1)
d = image.getRgbaUnsafe(x * 2 + 0, y * 2 + 1)
var values: array[4, uint32]
values[0] = a.r.uint32 + b.r + c.r + d.r
values[1] = a.g.uint32 + b.g + c.g + d.g
values[2] = a.b.uint32 + b.b + c.b + d.b
values[3] = a.a.uint32 + b.a + c.a + d.a
let color = rgba(
(values[0] div 4).uint8,
(values[1] div 4).uint8,
(values[2] div 4).uint8,
(values[3] div 4).uint8
((a.r.uint32 + b.r + c.r + d.r) div 4).uint8,
((a.g.uint32 + b.g + c.g + d.g) div 4).uint8,
((a.b.uint32 + b.b + c.b + d.b) div 4).uint8,
((a.a.uint32 + b.a + c.a + d.a) div 4).uint8
)
result.setRgbaUnsafe(x, y, color)