79 lines
2.1 KiB
Nim
79 lines
2.1 KiB
Nim
import chroma, pixie, fidget/opengl/perf
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const iterations = 100
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proc fillOriginal(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 invertOriginal(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 applyOpacityOriginal(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 sharpOpacityOriginal(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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timeIt "fillOriginal":
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var a = newImage(2560, 1440)
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for i in 0 ..< iterations:
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a.fillOriginal(rgba(255, 255, 255, 255))
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doAssert a[0, 0] == rgba(255, 255, 255, 255)
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timeIt "fill":
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var a = newImage(2560, 1440)
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for i in 0 ..< iterations:
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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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timeIt "invertOriginal":
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var a = newImage(2560, 1440)
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for i in 0 ..< iterations:
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a.invertOriginal()
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timeIt "invert":
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var a = newImage(2560, 1440)
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for i in 0 ..< iterations:
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a.invert()
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timeIt "applyOpacityOriginal":
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var a = newImage(2560, 1440)
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for i in 0 ..< iterations:
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a = a.applyOpacityOriginal(0.5)
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timeIt "applyOpacity":
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var a = newImage(2560, 1440)
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for i in 0 ..< iterations:
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a.applyOpacity(0.5)
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timeIt "sharpOpacityOriginal":
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var a = newImage(2560, 1440)
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for i in 0 ..< iterations:
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a = a.sharpOpacityOriginal()
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timeIt "sharpOpacity":
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var a = newImage(2560, 1440)
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for i in 0 ..< iterations:
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a.sharpOpacity()
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