SurfaceFlinger: enhance refresh rate selection
Enhance the refresh rate selection algorithm to allow having multiple
refresh rate. The new process attaches scores to each one of the available
refresh rate and chooses the refresh rate with the highest score.
This behavior is currently controlled by the sysprop flag
'debug.sf.use_content_detection_v2' and currently turned off.
This algorithm stills needs some tunings which will be done in
layer CLs.
Test: adb shell /data/nativetest64/SurfaceFlinger_test/SurfaceFlinger_test
Test: adb shell /data/nativetest64/libsurfaceflinger_unittest/libsurfaceflinger_unittest
Test: go/90hzscenarios manual tests
Bug: 147516364
Fixes: 146068419
Change-Id: I06e07459e469482799ff80fa54fa8dd311325e0e
diff --git a/services/surfaceflinger/Scheduler/LayerHistory.h b/services/surfaceflinger/Scheduler/LayerHistory.h
index f217134..bef04e9 100644
--- a/services/surfaceflinger/Scheduler/LayerHistory.h
+++ b/services/surfaceflinger/Scheduler/LayerHistory.h
@@ -25,6 +25,8 @@
#include <utility>
#include <vector>
+#include "RefreshRateConfigs.h"
+
namespace android {
class Layer;
@@ -33,29 +35,32 @@
namespace scheduler {
class LayerHistoryTest;
+class LayerHistoryTestV2;
class LayerInfo;
+class LayerInfoV2;
class LayerHistory {
public:
+ using LayerVoteType = RefreshRateConfigs::LayerVoteType;
+
virtual ~LayerHistory() = default;
// Layers are unregistered when the weak reference expires.
- virtual void registerLayer(Layer*, float lowRefreshRate, float highRefreshRate) = 0;
+ virtual void registerLayer(Layer*, float lowRefreshRate, float highRefreshRate,
+ LayerVoteType type) = 0;
+
+ // Sets the display size. Client is responsible for synchronization.
+ virtual void setDisplayArea(uint32_t displayArea) = 0;
// Marks the layer as active, and records the given state to its history.
virtual void record(Layer*, nsecs_t presentTime, nsecs_t now) = 0;
- struct Summary {
- float maxRefreshRate; // Maximum refresh rate among recently active layers.
- };
+ using Summary = std::vector<RefreshRateConfigs::LayerRequirement>;
// Rebuilds sets of active/inactive layers, and accumulates stats for active layers.
virtual Summary summarize(nsecs_t now) = 0;
virtual void clear() = 0;
-
- // Checks whether any of the active layers have a desired frame rate bit set on them.
- virtual bool hasClientSpecifiedFrameRate() = 0;
};
namespace impl {
@@ -68,7 +73,10 @@
virtual ~LayerHistory();
// Layers are unregistered when the weak reference expires.
- void registerLayer(Layer*, float lowRefreshRate, float highRefreshRate) override;
+ void registerLayer(Layer*, float lowRefreshRate, float highRefreshRate,
+ LayerVoteType type) override;
+
+ void setDisplayArea(uint32_t /*displayArea*/) override {}
// Marks the layer as active, and records the given state to its history.
void record(Layer*, nsecs_t presentTime, nsecs_t now) override;
@@ -78,10 +86,6 @@
void clear() override;
- // Traverses all active layers and checks whether any of them have a desired frame
- // rate bit set on them.
- bool hasClientSpecifiedFrameRate() override;
-
private:
friend class android::scheduler::LayerHistoryTest;
friend TestableScheduler;
@@ -91,7 +95,7 @@
struct ActiveLayers {
LayerInfos& infos;
- const size_t index;
+ const long index;
auto begin() { return infos.begin(); }
auto end() { return begin() + index; }
@@ -109,8 +113,66 @@
// Partitioned such that active layers precede inactive layers. For fast lookup, the few active
// layers are at the front, and weak pointers are stored in contiguous memory to hit the cache.
LayerInfos mLayerInfos GUARDED_BY(mLock);
+ long mActiveLayersEnd GUARDED_BY(mLock) = 0;
+
+ // Whether to emit systrace output and debug logs.
+ const bool mTraceEnabled;
+
+ // Whether to use priority sent from WindowManager to determine the relevancy of the layer.
+ const bool mUseFrameRatePriority;
+};
+
+class LayerHistoryV2 : public android::scheduler::LayerHistory {
+public:
+ LayerHistoryV2();
+ virtual ~LayerHistoryV2();
+
+ // Layers are unregistered when the weak reference expires.
+ void registerLayer(Layer*, float lowRefreshRate, float highRefreshRate,
+ LayerVoteType type) override;
+
+ // Sets the display size. Client is responsible for synchronization.
+ void setDisplayArea(uint32_t displayArea) override { mDisplayArea = displayArea; }
+
+ // Marks the layer as active, and records the given state to its history.
+ void record(Layer*, nsecs_t presentTime, nsecs_t now) override;
+
+ // Rebuilds sets of active/inactive layers, and accumulates stats for active layers.
+ android::scheduler::LayerHistory::Summary summarize(nsecs_t /*now*/) override;
+
+ void clear() override;
+
+private:
+ friend android::scheduler::LayerHistoryTestV2;
+ friend TestableScheduler;
+
+ using LayerPair = std::pair<wp<Layer>, std::unique_ptr<LayerInfoV2>>;
+ using LayerInfos = std::vector<LayerPair>;
+
+ struct ActiveLayers {
+ LayerInfos& infos;
+ const size_t index;
+
+ auto begin() { return infos.begin(); }
+ auto end() { return begin() + static_cast<long>(index); }
+ };
+
+ ActiveLayers activeLayers() REQUIRES(mLock) { return {mLayerInfos, mActiveLayersEnd}; }
+
+ // Iterates over layers in a single pass, swapping pairs such that active layers precede
+ // inactive layers, and inactive layers precede expired layers. Removes expired layers by
+ // truncating after inactive layers.
+ void partitionLayers(nsecs_t now) REQUIRES(mLock);
+
+ mutable std::mutex mLock;
+
+ // Partitioned such that active layers precede inactive layers. For fast lookup, the few active
+ // layers are at the front, and weak pointers are stored in contiguous memory to hit the cache.
+ LayerInfos mLayerInfos GUARDED_BY(mLock);
size_t mActiveLayersEnd GUARDED_BY(mLock) = 0;
+ uint32_t mDisplayArea = 0;
+
// Whether to emit systrace output and debug logs.
const bool mTraceEnabled;