SF: Break dependency between VsyncConfiguration and RefreshRateConfigs
The VsyncConfiguration class doesn't need to know the list of
supported refresh rates, because the offsets can be calculated
and cached on the fly. This is better because the list of refresh
rates can change during runtime (for example for Android TV).
After fixing this the dependency on RefreshRateConfigs is only needed
for getting the current refresh rate at construction time. For
this it's sufficient to pass only the Fps instead of the whole
RefreshRateConfigs object.
Bug: 159590486
Test: presubmit
Change-Id: I1c0ceaf2524b517e85c8067577fc9f5146f1f632
diff --git a/services/surfaceflinger/Scheduler/VsyncConfiguration.h b/services/surfaceflinger/Scheduler/VsyncConfiguration.h
index a120e97..d9d206d 100644
--- a/services/surfaceflinger/Scheduler/VsyncConfiguration.h
+++ b/services/surfaceflinger/Scheduler/VsyncConfiguration.h
@@ -16,12 +16,14 @@
#pragma once
+#include <mutex>
+#include <type_traits>
#include <unordered_map>
+#include <vector>
#include <utils/Timers.h>
#include "Fps.h"
-#include "RefreshRateConfigs.h"
#include "VsyncModulator.h"
namespace android::scheduler {
@@ -39,9 +41,9 @@
virtual ~VsyncConfiguration() = default;
virtual VsyncConfigSet getCurrentConfigs() const = 0;
virtual VsyncConfigSet getConfigsForRefreshRate(Fps fps) const = 0;
+ virtual void reset() = 0;
virtual void setRefreshRateFps(Fps fps) = 0;
-
virtual void dump(std::string& result) const = 0;
};
@@ -57,26 +59,39 @@
explicit VsyncConfiguration(Fps currentFps);
// Returns early, early GL, and late offsets for Apps and SF for a given refresh rate.
- VsyncConfigSet getConfigsForRefreshRate(Fps fps) const override;
+ VsyncConfigSet getConfigsForRefreshRate(Fps fps) const override EXCLUDES(mLock);
// Returns early, early GL, and late offsets for Apps and SF.
- VsyncConfigSet getCurrentConfigs() const override {
- return getConfigsForRefreshRate(mRefreshRateFps);
+ VsyncConfigSet getCurrentConfigs() const override EXCLUDES(mLock) {
+ std::lock_guard lock(mLock);
+ return getConfigsForRefreshRateLocked(mRefreshRateFps);
+ }
+
+ // Cleans the internal cache.
+ void reset() override EXCLUDES(mLock) {
+ std::lock_guard lock(mLock);
+ mOffsetsCache.clear();
}
// This function should be called when the device is switching between different
// refresh rates, to properly update the offsets.
- void setRefreshRateFps(Fps fps) override { mRefreshRateFps = fps; }
+ void setRefreshRateFps(Fps fps) override EXCLUDES(mLock) {
+ std::lock_guard lock(mLock);
+ mRefreshRateFps = fps;
+ }
// Returns current offsets in human friendly format.
void dump(std::string& result) const override;
protected:
- void initializeOffsets(const std::vector<Fps>& refreshRates);
virtual VsyncConfiguration::VsyncConfigSet constructOffsets(nsecs_t vsyncDuration) const = 0;
- std::unordered_map<Fps, VsyncConfigSet, std::hash<Fps>, Fps::EqualsInBuckets> mOffsets;
- std::atomic<Fps> mRefreshRateFps;
+ VsyncConfigSet getConfigsForRefreshRateLocked(Fps fps) const REQUIRES(mLock);
+
+ mutable std::unordered_map<Fps, VsyncConfigSet, std::hash<Fps>, Fps::EqualsInBuckets>
+ mOffsetsCache GUARDED_BY(mLock);
+ std::atomic<Fps> mRefreshRateFps GUARDED_BY(mLock);
+ mutable std::mutex mLock;
};
/*
@@ -85,13 +100,13 @@
*/
class PhaseOffsets : public VsyncConfiguration {
public:
- explicit PhaseOffsets(const scheduler::RefreshRateConfigs&);
+ explicit PhaseOffsets(Fps currentRefreshRate);
protected:
// Used for unit tests
- PhaseOffsets(const std::vector<Fps>& refreshRates, Fps currentFps, nsecs_t vsyncPhaseOffsetNs,
- nsecs_t sfVSyncPhaseOffsetNs, std::optional<nsecs_t> earlySfOffsetNs,
- std::optional<nsecs_t> earlyGpuSfOffsetNs, std::optional<nsecs_t> earlyAppOffsetNs,
+ PhaseOffsets(Fps currentRefreshRate, nsecs_t vsyncPhaseOffsetNs, nsecs_t sfVSyncPhaseOffsetNs,
+ std::optional<nsecs_t> earlySfOffsetNs, std::optional<nsecs_t> earlyGpuSfOffsetNs,
+ std::optional<nsecs_t> earlyAppOffsetNs,
std::optional<nsecs_t> earlyGpuAppOffsetNs, nsecs_t highFpsVsyncPhaseOffsetNs,
nsecs_t highFpsSfVSyncPhaseOffsetNs, std::optional<nsecs_t> highFpsEarlySfOffsetNs,
std::optional<nsecs_t> highFpsEarlyGpuSfOffsetNs,
@@ -128,13 +143,12 @@
*/
class WorkDuration : public VsyncConfiguration {
public:
- explicit WorkDuration(const scheduler::RefreshRateConfigs&);
+ explicit WorkDuration(Fps currentRefrshRate);
protected:
// Used for unit tests
- WorkDuration(const std::vector<Fps>& refreshRates, Fps currentFps, nsecs_t sfDuration,
- nsecs_t appDuration, nsecs_t sfEarlyDuration, nsecs_t appEarlyDuration,
- nsecs_t sfEarlyGpuDuration, nsecs_t appEarlyGpuDuration);
+ WorkDuration(Fps currentFps, nsecs_t sfDuration, nsecs_t appDuration, nsecs_t sfEarlyDuration,
+ nsecs_t appEarlyDuration, nsecs_t sfEarlyGpuDuration, nsecs_t appEarlyGpuDuration);
private:
VsyncConfiguration::VsyncConfigSet constructOffsets(nsecs_t vsyncDuration) const override;