commit 3da1672acbe6a84f1d69f1e21096115c60826aea
author Mathias Agopian <mathias@google.com> Thu Feb 28 17:12:07 2013 -0800
committer Mathias Agopian <mathias@google.com> Thu Feb 28 18:43:04 2013 -0800
tree c7b7fee89740714b0a8e61290db1cc069e02ac8d
parent a8bca8d84b559e7dcca010f7d6514333004020c7

implement display projection clipping in h/w composer

- cropping to the projection's "viewport" is "simply"
  accomplished by intersecting it with the window crop
  expressed in layerstack space.

Bug: 7149437
Change-Id: I0e90b3f37945292314b5d78a8f134935967e8053

services/surfaceflinger/Transform.h

diff --git a/services/surfaceflinger/Transform.h b/services/surfaceflinger/Transform.h
index 4fe261a..c4efade 100644
--- a/services/surfaceflinger/Transform.h
+++ b/services/surfaceflinger/Transform.h
@@ -80,6 +80,8 @@
             Rect    transform(const Rect& bounds) const;
             Transform operator * (const Transform& rhs) const;
 
+            Transform inverse() const;
+
             // for debugging
             void dump(const char* name) const;