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Commit 19df32cd authored by Dan Stoza's avatar Dan Stoza
Browse files

ANativeWindow: Add NATIVE_WINDOW_BUFFER_AGE query 

Adds a NATIVE_WINDOW_BUFFER_AGE query, which returns the age of the
contents of the most recently dequeued buffer as the number of frames
that have elapsed since it was last queued.

Change-Id: Ib6fd62945cb62d1e60133a65beee510363218a23
parent 04274a29

include/system/window.h

+10 −1
Original line number Original line Diff line number Diff line
@@ -267,7 +267,16 @@ enum { 
     * The default data space for the buffers as set by the consumer.

     * The default data space for the buffers as set by the consumer.

     * The values are defined in graphics.h.

     * The values are defined in graphics.h.

     */

     */

    NATIVE_WINDOW_DEFAULT_DATASPACE = 12

    NATIVE_WINDOW_DEFAULT_DATASPACE = 12,



    /*

     * Returns the age of the contents of the most recently dequeued buffer as

     * the number of frames that have elapsed since it was last queued. For

     * example, if the window is double-buffered, the age of any given buffer in

     * steady state will be 2. If the dequeued buffer has never been queued, its

     * age will be 0.

     */

    NATIVE_WINDOW_BUFFER_AGE = 13,

};

};





/* Valid operations for the (*perform)() hook.

/* Valid operations for the (*perform)() hook.