diff options
Diffstat (limited to 'pixman/pixman/pixman.h')
| -rw-r--r-- | pixman/pixman/pixman.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/pixman/pixman/pixman.h b/pixman/pixman/pixman.h index 18d951312..20ff49695 100644 --- a/pixman/pixman/pixman.h +++ b/pixman/pixman/pixman.h @@ -908,10 +908,14 @@ struct pixman_triangle }; /* whether 't' is a well defined not obviously empty trapezoid */ -#define pixman_trapezoid_valid(t) \ - ((t)->left.p1.y != (t)->left.p2.y && \ - (t)->right.p1.y != (t)->right.p2.y && \ - (int) ((t)->bottom - (t)->top) > 0) +#define pixman_trapezoid_valid(t) \ + ((t)->left.p1.y != (t)->left.p2.y && \ + (t)->right.p1.y != (t)->right.p2.y && \ + (int) ((t)->bottom - (t)->top) > 0 && \ + (t)->bottom <= (t)->left.p2.y && \ + (t)->bottom <= (t)->right.p2.y && \ + (t)->top >= (t)->left.p1.y && \ + (t)->top >= (t)->right.p1.y) struct pixman_span_fix { |