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Commit a5e65d86 authored by Ruben Brunk's avatar Ruben Brunk
Browse files

Allow sticky transform to be set in ANativeWindow. 

Bug: 15116722

- Adds methods to set the sticky transform field.

Change-Id: Idaa4311dfd027b2d2b8ea5e2c6cba2da5779d753
parent 1404e654

include/system/window.h

+38 −1
Original line number Diff line number Diff line
@@ -242,7 +242,26 @@ enum { 
     * The consumer gralloc usage bits currently set by the consumer.

     * The values are defined in hardware/libhardware/include/gralloc.h.

     */

    NATIVE_WINDOW_CONSUMER_USAGE_BITS = 10

    NATIVE_WINDOW_CONSUMER_USAGE_BITS = 10,



    /**

     * Transformation that will by applied to buffers by the hwcomposer.

     * This must not be set or checked by producer endpoints, and will

     * disable the transform hint set in SurfaceFlinger (see

     * NATIVE_WINDOW_TRANSFORM_HINT).

     *

     * INTENDED USE:

     * Temporary - Please do not use this.  This is intended only to be used

     * by the camera's LEGACY mode.

     *

     * In situations where a SurfaceFlinger client wishes to set a transform

     * that is not visible to the producer, and will always be applied in the

     * hardware composer, the client can set this flag with

     * native_window_set_buffers_sticky_transform.  This can be used to rotate

     * and flip buffers consumed by hardware composer without actually changing

     * the aspect ratio of the buffers produced.

     */

    NATIVE_WINDOW_STICKY_TRANSFORM = 11,

};



/* Valid operations for the (*perform)() hook.
@@ -273,6 +292,7 @@ enum { 
    NATIVE_WINDOW_API_DISCONNECT            = 14,   /* private */

    NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS = 15, /* private */

    NATIVE_WINDOW_SET_POST_TRANSFORM_CROP   = 16,   /* private */

    NATIVE_WINDOW_SET_BUFFERS_STICKY_TRANSFORM = 17,/* private */

};



/* parameter for NATIVE_WINDOW_[API_][DIS]CONNECT */
@@ -790,6 +810,23 @@ static inline int native_window_set_buffers_transform( 
            transform);

}



/*

 * native_window_set_buffers_sticky_transform(..., int transform)

 * All buffers queued after this call will be displayed transformed according

 * to the transform parameter specified applied on top of the regular buffer

 * transform.  Setting this transform will disable the transform hint.

 *

 * Temporary - This is only intended to be used by the LEGACY camera mode, do

 *   not use this for anything else.

 */

static inline int native_window_set_buffers_sticky_transform(

        struct ANativeWindow* window,

        int transform)

{

    return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_STICKY_TRANSFORM,

            transform);

}



/*

 * native_window_set_buffers_timestamp(..., int64_t timestamp)

 * All buffers queued after this call will be associated with the timestamp