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turbojpeg.h: Parenthesize TJSCALED() dimension arg

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This ensures that, for example,
TJSCALED(dim0 + dim1, sf)

will evaluate to
(((dim0 + dim1) * sf.num + sf.denom - 1) / sf.denom)

rather than
((dim0 + (dim1 * sf.num) + sf.denom - 1) / sf.denom)
This commit is contained in:
Dmitry Tsarevich
2022-01-06 02:21:10 +03:00
committed by DRC
parent a01857cff6
commit a7f0244e9b
1 changed files with 1 additions and 1 deletions
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2
turbojpeg.h
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@@ -673,7 +673,7 @@ typedef void *tjhandle;
* scalingFactor)</tt>.
*/
#define TJSCALED(dimension, scalingFactor) \
((dimension * scalingFactor.num + scalingFactor.denom - 1) / \
(((dimension) * scalingFactor.num + scalingFactor.denom - 1) / \
scalingFactor.denom)