With the cubic fix this is plenty accurate enough, far in excess of the pixman
fixed-point error limit. Likely even 16 samples is too many.
---
pixman/pixman-filter.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/pixman/pixman-filter.c b/pixman/pixman-filter.c
index 7c1da0d..4aafa51 100644
--- a/pixman/pixman-filter.c
+++ b/pixman/pixman-filter.c
@@ -190,7 +190,7 @@ integral (pixman_kernel_t reconstruct, double x1,
else
{
/* Integration via Simpson's rule */
-#define N_SEGMENTS 128
+#define N_SEGMENTS 16
#define SAMPLE(a1, a2) \
(filters[reconstruct].func ((a1)) * filters[sample].func ((a2) / scale))
--
1.7.9.5
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