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Fix that comment ;).

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This commit is contained in:
NiLuJe 2019-06-07 04:12:34 +02:00
parent 43d53f8dbe
commit 474d76e645
1 changed files with 1 additions and 1 deletions
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src/calibre/utils/imageops/ordered_dither.cpp
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@ -74,7 +74,7 @@ static uint8_t
// c = ClampToQuantum((l+(t >= map[(x % mw) + mw * (y % mh)])) * QuantumRange / (L-1));
uint32_t q = ((l + (t >= threshold_map_o8x8[(x & 7U) + 8U * (y & 7U)])) * 17);
// NOTE: We're doing unsigned maths, so, clamping is basically MIN(q, UINT8_MAX) ;).
// The only overflow we should ever catch should be for a few black (v = 0xFF) input pixels
// The only overflow we should ever catch should be for a few white (v = 0xFF) input pixels
// that get shifted to the next step (i.e., q = 272 (0xFF + 17)).
return (q > UINT8_MAX ? UINT8_MAX : static_cast<uint8_t>(q));
}