Merge "display: Add BufferMirrorMode support for External"

libhwcomposer/hwc_utils.h

@@ -193,6 +193,9 @@ void calcExtDisplayPosition(hwc_context_t *ctx,
                                int dpy,
                                hwc_rect_t& sourceCrop,
                                hwc_rect_t& displayFrame);
+// Returns the orientation that needs to be set on external for
+// BufferMirrirMode(Sidesync)
+int getMirrorModeOrientation(hwc_context_t *ctx);
 
 //Close acquireFenceFds of all layers of incoming list
 void closeAcquireFds(hwc_display_contents_1_t* list);
@@ -371,6 +374,11 @@ struct hwc_context_t {
     int mExtOrientation;
     //Flags the transition of a video session
     bool mVideoTransFlag;
+
+    //Used for SideSync feature
+    //which overrides the mExtOrientation
+    bool mBufferMirrorMode;
+
     qhwc::LayerRotMap *mLayerRotMap[HWC_NUM_DISPLAY_TYPES];
 };