SurfaceFlinger and libgui: Switch Z-order to signed type.
In preparation for SurfaceFlinger child layers. In that model
children's Z order will be relative to their parent. We need
negative Z values to represent children stacking below their
parent (e.g. SurfaceView). Java side already uses signed types
strangely enough.
Test: Basically a refactoring. SurfaceFlinger still works.
Change-Id: Ifcece69f6f9d917cbf5238a59f8e5de1e8ba6a25
diff --git a/include/gui/SurfaceControl.h b/include/gui/SurfaceControl.h
index 456bde4..62217ad 100644
--- a/include/gui/SurfaceControl.h
+++ b/include/gui/SurfaceControl.h
@@ -61,7 +61,7 @@
void disconnect();
status_t setLayerStack(uint32_t layerStack);
- status_t setLayer(uint32_t layer);
+ status_t setLayer(int32_t layer);
status_t setLayerInfo(uint32_t type, uint32_t appid);
status_t setPosition(float x, float y);
status_t setSize(uint32_t w, uint32_t h);