[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[freetype2] master b070264: * src/smooth/ftgrays.c (gray_hline): Simplif
From: |
Werner Lemberg |
Subject: |
[freetype2] master b070264: * src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations. |
Date: |
Mon, 10 May 2021 22:07:29 -0400 (EDT) |
branch: master
commit b070264521386666dd0cbbedec469c84b26489ba
Author: Alexei Podtelezhnikov <apodtele@gmail.com>
Commit: Alexei Podtelezhnikov <apodtele@gmail.com>
* src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations.
It is too bad the even-odd rule is not used much.
---
ChangeLog | 6 ++++++
src/smooth/ftgrays.c | 6 +++---
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index ead7ae2..a8542d2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2021-05-10 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ * 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 <apodtele@gmail.com>
[type1] Avoid MM memory zeroing.
diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c
index dc25669..94169a0 100644
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -1182,10 +1182,10 @@ typedef ptrdiff_t FT_PtrDist;
/* 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 */
{
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [freetype2] master b070264: * src/smooth/ftgrays.c (gray_hline): Simplify even-odd computations.,
Werner Lemberg <=