commit a524a098e9280897a965bae16efd27469ff01ea4
author Marin Shalamanov <shalamanov@google.com> Mon Jul 27 21:39:55 2020 +0200
committer Marin Shalamanov <shalamanov@google.com> Fri Jul 31 23:46:22 2020 +0200
tree 5d7d3df660948792a947e3c881b621092cd5d649
parent 6db8d6e98a8e1ebd7eae5736b54423de231deaeb

Use type safe display IDs.

Use a type safe wrapper around uint64_t for display ids.
We also modify the format of the EDID generated physical
display IDs by setting bit 62 to 1, which will indicate
that the display id is stable across reboot.

Bug: 160679868
Test: m && flash device
Test: take screnshot on device
Test: atest surfaceflinger_unittest
Change-Id: Ie2c7c2b737e0882fa4208c059caa85b7ded922b2

services/surfaceflinger/DisplayDevice.h

diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 576488c..28906f8 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -194,7 +194,7 @@
 
 struct DisplayDeviceState {
     struct Physical {
-        DisplayId id;
+        PhysicalDisplayId id;
         DisplayConnectionType type;
         hardware::graphics::composer::hal::HWDisplayId hwcDisplayId;
         std::optional<DeviceProductInfo> deviceProductInfo;