SurfaceFlinger: no touch boost for layer that explicitly voted
Avoid switching to peak refresh rate on touch when we have
layers that explicitly voted via setFrateRate() and they occupy > 80%
of the screen.
Test: App that calls to setFrameRate + touch
Test: adb shell /data/nativetest64/libsurfaceflinger_unittest/libsurfaceflinger_unittest
Bug: 147516364
Fixes: 150976355
Change-Id: I3590beeba1c3ff4c9a1b1575a607ef949ca6dd10
diff --git a/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp b/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
index 6ef6ce4..8a14572 100644
--- a/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
+++ b/services/surfaceflinger/Scheduler/LayerHistoryV2.cpp
@@ -212,7 +212,5 @@
for (const auto& [layer, info] : activeLayers()) {
info->clearHistory();
}
-
- mActiveLayersEnd = 0;
}
} // namespace android::scheduler::impl
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
index 15b158d..ae4c3e5 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
@@ -95,22 +95,19 @@
}
const RefreshRate& RefreshRateConfigs::getRefreshRateForContentV2(
- const std::vector<LayerRequirement>& layers, bool touchActive) const {
+ const std::vector<LayerRequirement>& layers, bool touchActive,
+ bool* touchConsidered) const {
ATRACE_CALL();
ALOGV("getRefreshRateForContent %zu layers", layers.size());
+ *touchConsidered = false;
std::lock_guard lock(mLock);
- // For now if the touch is active return the peak refresh rate
- // This should be optimized to consider other layers as well.
- if (touchActive) {
- return *mAvailableRefreshRates.back();
- }
-
// If there are not layers, there is not content detection, so return the current
// refresh rate.
if (layers.empty()) {
- return getCurrentRefreshRateByPolicyLocked();
+ *touchConsidered = touchActive;
+ return touchActive ? *mAvailableRefreshRates.back() : getCurrentRefreshRateByPolicyLocked();
}
int noVoteLayers = 0;
@@ -118,17 +115,30 @@
int maxVoteLayers = 0;
int explicitDefaultVoteLayers = 0;
int explicitExactOrMultipleVoteLayers = 0;
+ float maxExplicitWeight = 0;
for (const auto& layer : layers) {
- if (layer.vote == LayerVoteType::NoVote)
+ if (layer.vote == LayerVoteType::NoVote) {
noVoteLayers++;
- else if (layer.vote == LayerVoteType::Min)
+ } else if (layer.vote == LayerVoteType::Min) {
minVoteLayers++;
- else if (layer.vote == LayerVoteType::Max)
+ } else if (layer.vote == LayerVoteType::Max) {
maxVoteLayers++;
- else if (layer.vote == LayerVoteType::ExplicitDefault)
+ } else if (layer.vote == LayerVoteType::ExplicitDefault) {
explicitDefaultVoteLayers++;
- else if (layer.vote == LayerVoteType::ExplicitExactOrMultiple)
+ maxExplicitWeight = std::max(maxExplicitWeight, layer.weight);
+ } else if (layer.vote == LayerVoteType::ExplicitExactOrMultiple) {
explicitExactOrMultipleVoteLayers++;
+ maxExplicitWeight = std::max(maxExplicitWeight, layer.weight);
+ }
+ }
+
+ // Consider the touch event if there are no ExplicitDefault layers.
+ // ExplicitDefault are mostly interactive (as opposed to ExplicitExactOrMultiple)
+ // and therefore if those posted an explicit vote we should not change it
+ // if get get a touch event.
+ if (touchActive && explicitDefaultVoteLayers == 0) {
+ *touchConsidered = true;
+ return *mAvailableRefreshRates.back();
}
// Only if all layers want Min we should return Min
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.h b/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
index c8aec86..d29a3c8 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
@@ -134,9 +134,11 @@
// Returns the refresh rate that fits best to the given layers. This function also gets a
// boolean flag that indicates whether user touched the screen recently to be factored in when
- // choosing the refresh rate.
+ // choosing the refresh rate and returns whether the refresh rate was chosen as a result of
+ // a touch event.
const RefreshRate& getRefreshRateForContentV2(const std::vector<LayerRequirement>& layers,
- bool touchActive) const EXCLUDES(mLock);
+ bool touchActive, bool* touchConsidered) const
+ EXCLUDES(mLock);
// Returns all the refresh rates supported by the device. This won't change at runtime.
const AllRefreshRatesMapType& getAllRefreshRates() const EXCLUDES(mLock);
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 5444239..52045dc 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -483,7 +483,7 @@
// that is currently on top. b/142507166 will give us this capability.
std::lock_guard<std::mutex> lock(mFeatureStateLock);
if (mLayerHistory) {
- mLayerHistory->clear();
+ // Layer History will be cleared based on RefreshRateConfigs::getRefreshRateForContentV2
mTouchTimer->reset();
@@ -620,10 +620,21 @@
return mRefreshRateConfigs.getRefreshRateForContent(mFeatures.contentRequirements).configId;
}
- return mRefreshRateConfigs
- .getRefreshRateForContentV2(mFeatures.contentRequirements,
- mTouchTimer && mFeatures.touch == TouchState::Active)
- .configId;
+ bool touchConsidered;
+ const auto& ret =
+ mRefreshRateConfigs
+ .getRefreshRateForContentV2(mFeatures.contentRequirements,
+ mTouchTimer &&
+ mFeatures.touch == TouchState::Active,
+ &touchConsidered)
+ .configId;
+ if (touchConsidered) {
+ // Clear layer history if refresh rate was selected based on touch to allow
+ // the hueristic to pick up with the new rate.
+ mLayerHistory->clear();
+ }
+
+ return ret;
}
std::optional<HwcConfigIndexType> Scheduler::getPreferredConfigId() {