SurfaceFlinger: send config event changed on allowed modes change
Provide a notification whenever allowed display configurations have
changed, this allows Display Event Receivers to be aware of a change in
allowed configs.
Bug: 139487676
Change-Id: Ida73391c350989be595f55ff8e1d9d2cc70c0276
(cherry picked from commit ab6ef6c8871506317dc7ada75707c19963daabe4)
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index b31bc38..ab22cd9 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -6175,8 +6175,20 @@
return;
}
+ const auto allowedDisplayConfigs = DisplayConfigs(allowedConfigs.begin(),
+ allowedConfigs.end());
+ if (allowedDisplayConfigs == mAllowedDisplayConfigs) {
+ return;
+ }
+
ALOGV("Updating allowed configs");
- mAllowedDisplayConfigs = DisplayConfigs(allowedConfigs.begin(), allowedConfigs.end());
+ mAllowedDisplayConfigs = std::move(allowedDisplayConfigs);
+
+ // TODO(b/140204874): This hack triggers a notification that something has changed, so
+ // that listeners that care about a change in allowed configs can get the notification.
+ // Giving current ActiveConfig so that most other listeners would just drop the event
+ mScheduler->onConfigChanged(mAppConnectionHandle, display->getId()->value,
+ display->getActiveConfig());
// Set the highest allowed config by iterating backwards on available refresh rates
const auto& refreshRates = mRefreshRateConfigs.getRefreshRates();
