Support scaling on the z axis with cogl_scale

This simply adds a z argument to cogl_scale and updates clutter-actor.c
to pass 1.0 for the z scale.

README

@@ -251,6 +251,8 @@ Release Notes for Clutter 1.0
 * cogl_alpha_func has been removed, since this is now controlled using the
   material API via cogl_material_set_alpha_test_function ()
 
+* cogl_scale now supports scaling on the z axis
+
 Release Notes for Clutter 0.8
 -------------------------------
 

clutter/clutter-actor.c

@@ -1369,7 +1369,7 @@ _clutter_actor_apply_modelview_transform (ClutterActor *self)
    * entire object will move on the screen as a result of rotating it).
    */
   if (priv->scale_x != 1.0 || priv->scale_y != 1.0)
-    cogl_scale (priv->scale_x, priv->scale_y);
+    cogl_scale (priv->scale_x, priv->scale_y, 1.0);
 
    if (priv->rzang)
     {

clutter/cogl/cogl.h.in

@@ -226,12 +226,14 @@ void            cogl_pop_matrix               (void);
  * cogl_scale:
  * @x: Amount to scale along the x-axis
  * @y: Amount to scale along the y-axis
+ * @z: Amount to scale along the z-axis
  *
- * Multiplies the current model-view matrix by one that scales the x
- * and y axes by the given values.
+ * Multiplies the current model-view matrix by one that scales the x,
+ * y and z axes by the given values.
  */
 void            cogl_scale                    (float        x,
-                                               float        y);
+                                               float        y,
+                                               float        z);
 
 /**
  * cogl_translate:

clutter/cogl/gl/cogl.c

@@ -213,9 +213,9 @@ cogl_pop_matrix (void)
 }
 
 void
-cogl_scale (float x, float y)
+cogl_scale (float x, float y, float z)
 {
-  GE( glScalef (x, y, 1.0) );
+  GE( glScalef (x, y, z) );
 }
 
 void

clutter/cogl/gles/cogl.c

@@ -130,9 +130,9 @@ cogl_pop_matrix (void)
 }
 
 void
-cogl_scale (float x, float y)
+cogl_scale (float x, float y, float z)
 {
-  GE( glScalef (x, y, 1.0) );
+  GE( glScalef (x, y, z) );
 }
 
 void