26 lines
772 B
Diff
26 lines
772 B
Diff
From 3123c4298aab5ae2c0d5016d2b92bbb7896b3a29 Mon Sep 17 00:00:00 2001
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From: wang_yue111 <648774160@qq.com>
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Date: Wed, 3 Mar 2021 10:31:02 +0800
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Subject: [PATCH] https://github.com/ImageMagick/ImageMagick/issues/1712
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---
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magick/quantum-private.h | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/magick/quantum-private.h b/magick/quantum-private.h
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index 6ce4038..6654c1d 100644
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--- a/magick/quantum-private.h
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+++ b/magick/quantum-private.h
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@@ -324,6 +324,8 @@ static inline Quantum ScaleAnyToQuantum(const QuantumAny quantum,
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static inline QuantumAny ScaleQuantumToAny(const Quantum quantum,
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const QuantumAny range)
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{
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+ if (quantum < 0)
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+ return((QuantumAny) 0);
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return((QuantumAny) (((MagickRealType) range*quantum)/QuantumRange+0.5));
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}
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--
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2.23.0
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