radial-gradient: Ignore sign on radiuseswip/gradtest

When a radial gradient is created, ignore the sign of the radiuses.

Fixes radial-gradient-test.

1 files changed, 4 insertions, 2 deletions

diff --git a/pixman/pixman-radial-gradient.c b/pixman/pixman-radial-gradient.c
index b6dd6b2..97d0d48 100644
--- a/pixman/pixman-radial-gradient.c
+++ b/pixman/pixman-radial-gradient.c
@@ -34,6 +34,8 @@
 #include <math.h>
 #include "pixman-private.h"
 
+#define ABS(f)      (((f) < 0)?  (-(f)) : (f))
+
 static inline pixman_fixed_32_32_t
 dot (pixman_fixed_48_16_t x1,
      pixman_fixed_48_16_t y1,
@@ -447,10 +449,10 @@ pixman_image_create_radial_gradient (pixman_point_fixed_t *        inner,
 
     radial->c1.x = inner->x;
     radial->c1.y = inner->y;
-    radial->c1.radius = inner_radius;
+    radial->c1.radius = ABS (inner_radius);
     radial->c2.x = outer->x;
     radial->c2.y = outer->y;
-    radial->c2.radius = outer_radius;
+    radial->c2.radius = ABS (outer_radius);
 
     /* warning: this computations may overflow */
     radial->delta.x = radial->c2.x - radial->c1.x;