Allow fine-grained control over functors execution

Adds non-drawing execution mode

Change-Id: I82f92cf1b9a3b9ff2ca6d7427c4e02b73e04e6bf

1 files changed, 14 insertions, 3 deletions

diff --git a/include/private/hwui/DrawGlInfo.h b/include/private/hwui/DrawGlInfo.h
index abcf41d..8028bf3 100644
--- a/include/private/hwui/DrawGlInfo.h
+++ b/include/private/hwui/DrawGlInfo.h
@@ -44,20 +44,31 @@ struct DrawGlInfo {
     float dirtyBottom;
 
     /**
+     * Values used as the "what" parameter of the functor.
+     */
+    enum Mode {
+        // Indicates that the functor is called to perform a draw
+        kModeDraw,
+        // Indicates the the functor is called only to perform
+        // processing and that no draw should be attempted
+        kModeProcess
+    };
+
+    /**
      * Values used by OpenGL functors to tell the framework
      * what to do next.
      */
     enum Status {
         // The functor is done
-        kStatusDone,
+        kStatusDone = 0x0,
         // The functor is requesting a redraw (the clip rect
         // used by the redraw is specified by DrawGlInfo.)
         // The rest of the UI might redraw too.
-        kStatusDraw,
+        kStatusDraw = 0x1,
         // The functor needs to be invoked again but will
         // not redraw. Only the functor is invoked again
         // (unless another functor requests a redraw.)
-        kStatusInvoke
+        kStatusInvoke = 0x2
     };
 }; // struct DrawGlInfo