mirror of
https://gitlab.alpinelinux.org/alpine/aports.git
synced 2026-02-18 06:12:35 +01:00
37 lines
1.0 KiB
Diff
37 lines
1.0 KiB
Diff
From bbeaf08190d3006a80b80a77724801cd477a37b8 Mon Sep 17 00:00:00 2001
|
|
From: Heiko Lewin <hlewin@worldiety.de>
|
|
Date: Sat, 17 Apr 2021 19:15:03 +0200
|
|
Subject: [PATCH] _arc_max_angle_for_tolerance_normalized: fix infinite loop
|
|
|
|
---
|
|
src/cairo-arc.c | 4 +++-
|
|
1 file changed, 3 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/src/cairo-arc.c b/src/cairo-arc.c
|
|
index 390397bae..1c891d1a0 100644
|
|
--- a/src/cairo-arc.c
|
|
+++ b/src/cairo-arc.c
|
|
@@ -90,16 +90,18 @@ _arc_max_angle_for_tolerance_normalized (double tolerance)
|
|
{ M_PI / 11.0, 9.81410988043554039085e-09 },
|
|
};
|
|
int table_size = ARRAY_LENGTH (table);
|
|
+ const int max_segments = 1000; /* this value is chosen arbitrarily. this gives an error of about 1.74909e-20 */
|
|
|
|
for (i = 0; i < table_size; i++)
|
|
if (table[i].error < tolerance)
|
|
return table[i].angle;
|
|
|
|
++i;
|
|
+
|
|
do {
|
|
angle = M_PI / i++;
|
|
error = _arc_error_normalized (angle);
|
|
- } while (error > tolerance);
|
|
+ } while (error > tolerance && i < max_segments);
|
|
|
|
return angle;
|
|
}
|
|
--
|
|
GitLab
|
|
|