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faster + benchmark

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This commit is contained in:
Ryan Oldenburg 2021-06-17 21:40:07 -05:00
parent 848a051310
commit d18a268600
3 changed files with 15 additions and 2 deletions
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4
src/pixie/images.nim
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@ -506,7 +506,7 @@ proc drawCorrect(
dy = matInv * vec2(0 + h, 1 + h) - p dy = matInv * vec2(0 + h, 1 + h) - p
minFilterBy2 = max(dx.length, dy.length) minFilterBy2 = max(dx.length, dy.length)
while minFilterBy2 > 2: while minFilterBy2 >= 2:
b = b.minifyBy2() b = b.minifyBy2()
dx /= 2 dx /= 2
dy /= 2 dy /= 2
@ -563,7 +563,7 @@ proc drawUber(a, b: Image | Mask, mat = mat3(), blendMode = bmNormal) =
minFilterBy2 = max(dx.length, dy.length) minFilterBy2 = max(dx.length, dy.length)
b = b b = b
while minFilterBy2 > 2.0: while minFilterBy2 >= 2.0:
b = b.minifyBy2() b = b.minifyBy2()
p /= 2 p /= 2
dx /= 2 dx /= 2

2
tests/benchmark_images.nim
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@ -33,6 +33,8 @@ timeIt "minifyBy2":
let minified = image.minifyBy2() let minified = image.minifyBy2()
doAssert minified[0, 0] == rgba(63, 127, 191, 191) doAssert minified[0, 0] == rgba(63, 127, 191, 191)
reset()
timeIt "magnifyBy2": timeIt "magnifyBy2":
let minified = image.magnifyBy2() let minified = image.magnifyBy2()
doAssert minified[0, 0] == rgba(63, 127, 191, 191) doAssert minified[0, 0] == rgba(63, 127, 191, 191)

11
tests/benchmark_images_draw.nim
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@ -44,6 +44,17 @@ block:
a.draw(b, translate(vec2(25.2, 25.2)), bmNormal) a.draw(b, translate(vec2(25.2, 25.2)), bmNormal)
keep(b) keep(b)
block:
let
a = newImage(1000, 1000)
b = newImage(500, 500)
a.fill(rgba(255, 0, 0, 255))
b.fill(rgba(0, 255, 0, 255))
timeIt "draw big-on-bigger bmNormal scale(0.5)":
a.draw(b, translate(vec2(25, 25)) * scale(vec2(0.5, 0.5)), bmNormal)
keep(b)
block: block:
let let
a = newImage(100, 100) a = newImage(100, 100)