111 lines
2.5 KiB
Nim
111 lines
2.5 KiB
Nim
import chroma, pixie, benchy, system/memory
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proc fill1(a: Image, rgba: ColorRGBA) =
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for y in 0 ..< a.height:
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for x in 0 ..< a.width:
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a.setRgbaUnsafe(x, y, rgba)
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proc fill2*(image: Image, rgba: ColorRgba) =
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## Fills the image with a solid color.
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if rgba.r == rgba.g and rgba.r == rgba.b and rgba.r == rgba.a:
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nimSetMem(image.data[0].addr, rgba.r.cint, image.data.len * 4)
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else:
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for c in image.data.mitems:
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c = rgba
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proc invert1(a: Image) =
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for y in 0 ..< a.height:
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for x in 0 ..< a.width:
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var rgba = a.getRgbaUnsafe(x, y)
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rgba.r = 255 - rgba.r
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rgba.g = 255 - rgba.g
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rgba.b = 255 - rgba.b
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rgba.a = 255 - rgba.a
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a.setRgbaUnsafe(x, y, rgba)
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proc invert2*(image: Image) =
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for rgba in image.data.mitems:
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rgba.r = 255 - rgba.r
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rgba.g = 255 - rgba.g
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rgba.b = 255 - rgba.b
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rgba.a = 255 - rgba.a
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proc applyOpacity1(a: Image, opacity: float32): Image =
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result = newImage(a.width, a.height)
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let op = (255 * opacity).uint32
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for y in 0 ..< a.height:
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for x in 0 ..< a.width:
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var rgba = a.getRgbaUnsafe(x, y)
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rgba.a = ((rgba.a.uint32 * op) div 255).clamp(0, 255).uint8
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result.setRgbaUnsafe(x, y, rgba)
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proc sharpOpacity1(a: Image): Image =
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result = newImage(a.width, a.height)
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for y in 0 ..< a.height:
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for x in 0 ..< a.width:
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var rgba = a.getRgbaUnsafe(x, y)
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if rgba.a == 0:
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result.setRgbaUnsafe(x, y, rgba(0, 0, 0, 0))
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else:
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result.setRgbaUnsafe(x, y, rgba(255, 255, 255, 255))
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var a = newImage(2560, 1440)
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timeIt "fill1":
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a.fill1(rgba(255, 255, 255, 255))
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doAssert a[0, 0] == rgba(255, 255, 255, 255)
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keep(a)
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timeIt "fill2":
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a.fill2(rgba(255, 255, 255, 255))
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doAssert a[0, 0] == rgba(255, 255, 255, 255)
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keep(a)
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timeIt "fill":
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a.fill(rgba(255, 255, 255, 255))
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doAssert a[0, 0] == rgba(255, 255, 255, 255)
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keep(a)
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timeIt "fill1_rgba":
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a.fill1(rgba(63, 127, 191, 255))
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doAssert a[0, 0] == rgba(63, 127, 191, 255)
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keep(a)
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timeIt "fill2_rgba":
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a.fill2(rgba(63, 127, 191, 255))
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doAssert a[0, 0] == rgba(63, 127, 191, 255)
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keep(a)
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timeIt "fill_rgba":
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a.fill(rgba(63, 127, 191, 255))
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doAssert a[0, 0] == rgba(63, 127, 191, 255)
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keep(a)
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timeIt "invert1":
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a.invert1()
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keep(a)
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timeIt "invert2":
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a.invert2()
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keep(a)
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timeIt "invert":
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a.invert()
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keep(a)
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timeIt "applyOpacity1":
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a = a.applyOpacity1(0.5)
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keep(a)
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timeIt "applyOpacity":
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a.applyOpacity(0.5)
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keep(a)
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timeIt "sharpOpacity1":
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a = a.sharpOpacity1()
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keep(a)
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timeIt "sharpOpacity":
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a.sharpOpacity()
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keep(a)
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