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Optimize ImageSharp blitting.

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This commit is contained in:
Pieter-Jan Briers
2021-03-08 11:15:33 +01:00
parent 0afb85a09e
commit 93b4d81505
1 changed files with 7 additions and 6 deletions
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13
Robust.Client/Utility/ImageSharpExt.cs
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@@ -42,19 +42,20 @@ namespace Robust.Client.Utility
{
var dstSpan = destination.GetPixelSpan();
var dstWidth = destination.Width;
var srcHeight = sourceRect.Height;
var srcWidth = sourceRect.Width;
var (ox, oy) = destinationOffset;
for (var y = 0; y < sourceRect.Height; y++)
for (var y = 0; y < srcHeight; y++)
{
var sourceRowOffset = sourceWidth * (y + sourceRect.Top) + sourceRect.Left;
var destRowOffset = dstWidth * (y + oy) + ox;
for (var x = 0; x < sourceRect.Width; x++)
{
var pixel = source[x + sourceRowOffset];
dstSpan[x + destRowOffset] = pixel;
}
var srcRow = source[sourceRowOffset..(sourceRowOffset + srcWidth)];
var dstRow = dstSpan[destRowOffset..(destRowOffset + srcWidth)];
srcRow.CopyTo(dstRow);
}
}