make transform hint multi-display aware
if a layer is not mirrored, we now use its display
as the source for the transfrom hint calculation
instead of always using the default (main) display.
this change does two thing:
1) we make updateTransformHint take a DisplayDevice
as a parameter instead of hard-coding the
main display.
2) each time we do a transaction that could change
the hint, we go through all layers and
figure out which display should be used for their
transform hint.
Bug: 7599344
Change-Id: I9b04a95e6c372dd770bacf81d8ef6f8e31b87b83
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 6f75d8c..c5eb26b 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -91,8 +91,8 @@
inline const sp<GraphicBuffer>& getActiveBuffer() const { return mActiveBuffer; }
// Updates the transform hint in our SurfaceTexture to match
- // the current orientation of the default display device.
- virtual void updateTransformHint() const;
+ // the current orientation of the display device.
+ virtual void updateTransformHint(const sp<const DisplayDevice>& hw) const;
protected:
virtual void onFirstRef();