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Add AVX version of TransformColor and TransformColorInverse #1830

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Merged
JimBobSquarePants merged 8 commits into from
Nov 16, 2021
Merged

Add AVX version of TransformColor and TransformColorInverse #1830

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c76518b
Add AVX version of TransformColor
brianpopow Nov 15, 2021
e67ad60
Add AVX version of TransformColorInverse
brianpopow Nov 15, 2021
8e56459
Add AVX tests
brianpopow Nov 15, 2021
b15a021
Avoid pinning
brianpopow Nov 15, 2021
ff77361
Apply suggestions from code review
brianpopow Nov 15, 2021
b53aab4
Change loop condition to i <= numPixels - 8
brianpopow Nov 15, 2021
00d20b8
Use nint and rename scalar fallback
JimBobSquarePants Nov 16, 2021
306d127
Merge branch 'master' into bp/transformcoloravx
JimBobSquarePants Nov 16, 2021
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Change loop condition to i <= numPixels - 8 
Co-authored-by: Günther Foidl <gue@korporal.at>
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@brianpopow @gfoidl
brianpopow and gfoidl authored Nov 15, 2021
commit b53aab44b36a1d9d6c90457c724d3e53d39d90ba
2 changes: 1 addition & 1 deletion src/ImageSharp/Formats/Webp/Lossless/LosslessUtils.cs
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Expand Up @@ -129,7 +129,7 @@ public static void AddGreenToBlueAndRed(Span<uint> pixelData)
{
int numPixels = pixelData.Length;
int i;
for (i = 0; i + 8 <= numPixels; i += 8)
for (i = 0; i <= numPixels - 8; i += 8)
{
ref uint pos = ref Unsafe.Add(ref MemoryMarshal.GetReference(pixelData), i);
Vector256<byte> input = Unsafe.As<uint, Vector256<uint>>(ref pos).AsByte();
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