[mutter/wayland] shaped-texture: Use a double when calculating clip

[Jasper St. Pierre <jstpierre src gnome org>]

commit be698b597b53527c3d873b293c9c12113bfb582d
Author: Jonas Ådahl <jadahl gmail com>
Date:   Sun Jan 12 19:36:28 2014 +0100

    shaped-texture: Use a double when calculating clip
    
    For x defined below, x == -INT32_MAX assuming that the arithmetic
    expression actually uses the fpu.
    
    float f = 1.0f;
    int32_t x = INT32_MAX * f;
    
    This would result in the calculated clip width/height to be -INT_MAX
    if the damage width/height is INT_MAX. To solve this, use a double
    variable instead.
    
    Signed-off-by: Jonas Ådahl <jadahl gmail com>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=705502

 src/compositor/meta-shaped-texture.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/compositor/meta-shaped-texture.c b/src/compositor/meta-shaped-texture.c
index b37770e..2939584 100644
--- a/src/compositor/meta-shaped-texture.c
+++ b/src/compositor/meta-shaped-texture.c
@@ -605,8 +605,8 @@ get_clip (MetaShapedTexture *stex,
   ClutterActor *self = CLUTTER_ACTOR (stex);
   MetaShapedTexturePrivate *priv;
   ClutterActorBox allocation;
-  float scale_x;
-  float scale_y;
+  double scale_x;
+  double scale_y;
 
   /* NB: clutter_actor_queue_redraw_with_clip expects a box in the actor's
    * coordinate space so we need to convert from surface coordinates to