ref: b070264521386666dd0cbbedec469c84b26489ba
parent: 967a34eee3fd34f496366ed1283ab5268d23690a
author: Alexei Podtelezhnikov <[email protected]>
date: Mon May 10 18:06:01 EDT 2021
* src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations. It is too bad the even-odd rule is not used much.
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2021-05-10 Alexei Podtelezhnikov <[email protected]>
+
+ * src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations.
+
+ It is too bad the even-odd rule is not used much.
+
2021-05-07 Alexei Podtelezhnikov <[email protected]>
[type1] Avoid MM memory zeroing.
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -1182,10 +1182,10 @@
/* compute the line's coverage depending on the outline fill rule */
if ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL )
{
- coverage &= 511;
+ if ( coverage & 256 ) /* odd bit */
+ coverage = ~coverage;
- if ( coverage >= 256 )
- coverage = 511 - coverage;
+ /* higher bits discarded below */
}
else /* default non-zero winding rule */
{