util2double

1 files changed, 22 insertions, 0 deletions

diff --git a/pixman/pixman-image.c b/pixman/pixman-image.c
index 0e2593d..6fa530b 100644
--- a/pixman/pixman-image.c
+++ b/pixman/pixman-image.c
@@ -56,6 +56,28 @@ _pixman_init_gradient (gradient_t *                  gradient,
     return TRUE;
 }
 
+double *
+_pixman_gradient_stops_to_double (const pixman_gradient_stop_t *stops,
+				  int                           n_stops)
+{
+    double *r;
+    int i;
+
+    r = pixman_malloc_ab (n_stops, sizeof (double) * 5);
+
+    if (r != NULL) {
+        for (i = 0; i < n_stops; i++) {
+	    r[i] = pixman_fixed_to_double (stops[i].x);
+	    r[n_stops + i * 4 + 0] = (1. / 65535.) * stops[i].color.alpha;
+	    r[n_stops + i * 4 + 1] = (1. / 65535.) * stops[i].color.red;
+	    r[n_stops + i * 4 + 2] = (1. / 65535.) * stops[i].color.green;
+	    r[n_stops + i * 4 + 3] = (1. / 65535.) * stops[i].color.blue;
+	}
+    }
+
+    return r;
+}
+
 pixman_image_t *
 _pixman_image_allocate (void)
 {