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LibGfx/JPEGWriter: Fix crash on macOS when csize coefficient is 0

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This fixes #21108
This commit is contained in:
Nicolas Ramz 2023-10-06 11:55:20 +02:00 • committed by Andreas Kling
parent 80eec1e16b
commit 68e916490b
3 changed files with 9 additions and 5 deletions
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4
Userland/Libraries/LibGfx/ImageFormats/JPEGWriter.cpp
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@ -326,6 +326,10 @@ private:
static u8 csize(i16 coefficient)
{
VERIFY(coefficient >= -2047 && coefficient <= 2047);
if (coefficient == 0)
return 0;
return floor(log2(abs(coefficient))) + 1;
}