[mutter] MetaShapedTexture: Default to y-inverted being true

[Jonas Ådahl <jadahl src gnome org>]

commit 5774fcdd8001b9e15b417b765472245345e934fb
Author: Jonas Ådahl <jadahl gmail com>
Date:   Fri Nov 18 09:34:41 2016 +0800

    MetaShapedTexture: Default to y-inverted being true
    
    Normally textures in OpenGL are inverted on the Y axis, and we only
    apply our rotation transform when it is not. To make the common case
    work as normal, default to assuming textures are Y inverted.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773629

 src/compositor/meta-shaped-texture.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/compositor/meta-shaped-texture.c b/src/compositor/meta-shaped-texture.c
index 7a9e6fa..98346c6 100644
--- a/src/compositor/meta-shaped-texture.c
+++ b/src/compositor/meta-shaped-texture.c
@@ -133,6 +133,7 @@ meta_shaped_texture_init (MetaShapedTexture *self)
   priv->texture = NULL;
   priv->mask_texture = NULL;
   priv->create_mipmaps = TRUE;
+  priv->is_y_inverted = TRUE;
 }
 
 static void