X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fgfxpoly%2Fpoly.c;h=2be5efb9dd89647f23d00fd54af91fe7eb98ad31;hb=a8a2650b187181ff507303ff9cf181427445255a;hp=9f7e8e8b521f38ce7b21aa60a1143e1bf0df6a06;hpb=35fb95b82a6a7fa3f8f569a3217864b130b71d35;p=swftools.git

diff --git a/lib/gfxpoly/poly.c b/lib/gfxpoly/poly.c
index 9f7e8e8..2be5efb 100644
--- a/lib/gfxpoly/poly.c
+++ b/lib/gfxpoly/poly.c
@@ -305,6 +305,11 @@ static void segment_init(segment_t*s, int32_t x1, int32_t y1, int32_t x2, int32_
     s->nr = segment_count++;
 
 #ifdef CHECKS
+    /* notice: on some systems (with some compilers), for the line 
+       (1073741823,-1073741824)->(1073741823,1073741823)
+       we get LINE_EQ(s->a, s) == 1. 
+       That's why we now clamp to 26 bit.
+    */
     assert(LINE_EQ(s->a, s) == 0);
     assert(LINE_EQ(s->b, s) == 0);