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Co-authored-by: Günther Foidl <gue@korporal.at>
pull/2023/head
ratok-mk
4 years ago
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1 changed files with
4 additions and
3 deletions
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src/ImageSharp/Compression/Zlib/DeflaterEngine.cs
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@ -483,14 +483,15 @@ namespace SixLabors.ImageSharp.Compression.Zlib |
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int niceLength = Math.Min(this.niceLength, this.lookahead); |
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int matchStrt = this.matchStart; |
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this.matchLen = Math.Max(this.matchLen, DeflaterConstants.MIN_MATCH - 1); |
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int matchLength = this.matchLen; |
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matchLength = Math.Max(matchLength, DeflaterConstants.MIN_MATCH - 1); |
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this.matchLen = matchLength; |
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int scanEndPosition = scan + matchLength; |
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if (scanEndPosition > scanMax) |
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if (scan > scanMax - matchLength) |
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{ |
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return false; |
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} |
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int scanEndPosition = scan + matchLength; |
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byte* pinnedWindow = this.pinnedWindowPointer; |
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int scanStart = this.strstart; |
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