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authorAlexei Podtelezhnikov <apodtele@gmail.com>2017-02-01 22:36:16 -0500
committerAlexei Podtelezhnikov <apodtele@gmail.com>2017-02-01 22:36:16 -0500
commita3754d662652e12da290e504692ac08538bc1dd8 (patch)
tree0f5eb102666e6ed4e7d290436ffaf62117532e0b /src/smooth
parent2ca5b07d4f27a1f1c3be9438c49b41a15a84ff7b (diff)
downloadfreetype2-a3754d662652e12da290e504692ac08538bc1dd8.tar.gz
Comment.
Diffstat (limited to 'src/smooth')
-rw-r--r--src/smooth/ftgrays.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c
index c590cce9f..349af7f83 100644
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -341,7 +341,8 @@ typedef ptrdiff_t FT_PtrDist;
/* Compute `dividend / divisor' and return both its quotient and */
/* remainder, cast to a specific type. This macro also ensures that */
- /* the remainder is always positive. */
+ /* the remainder is always positive. We use the remainder to keep */
+ /* track of accumulating errors and compensate for them. */
#define FT_DIV_MOD( type, dividend, divisor, quotient, remainder ) \
FT_BEGIN_STMNT \
(quotient) = (type)( (dividend) / (divisor) ); \