SurfaceFlinger: add a test for unknown offset
Add a unit test that tries to get phase offset for a
refresh rate that is not part of the boot list.
The scenarios simulates an external display hotplug
with different refresh rate than the internal one.
Bug: 151859083
Test: adb shell /data/nativetest64/libsurfaceflinger_unittest/libsurfaceflinger_unittest
Change-Id: I3adee92b91d0c1a337c9a6ffd7431e7b854bbe0d
diff --git a/services/surfaceflinger/Scheduler/PhaseOffsets.cpp b/services/surfaceflinger/Scheduler/PhaseOffsets.cpp
index 7941cda..43883fb 100644
--- a/services/surfaceflinger/Scheduler/PhaseOffsets.cpp
+++ b/services/surfaceflinger/Scheduler/PhaseOffsets.cpp
@@ -36,6 +36,19 @@
return std::abs(fpsA - fpsB) <= MARGIN;
}
+std::vector<float> getRefreshRatesFromConfigs(
+ const android::scheduler::RefreshRateConfigs& refreshRateConfigs) {
+ const auto& allRefreshRates = refreshRateConfigs.getAllRefreshRates();
+ std::vector<float> refreshRates;
+ refreshRates.reserve(allRefreshRates.size());
+
+ for (const auto& [ignored, refreshRate] : allRefreshRates) {
+ refreshRates.emplace_back(refreshRate->fps);
+ }
+
+ return refreshRates;
+}
+
} // namespace
namespace android::scheduler {
@@ -45,14 +58,21 @@
namespace impl {
PhaseOffsets::PhaseOffsets(const scheduler::RefreshRateConfigs& refreshRateConfigs)
- : // Below defines the threshold when an offset is considered to be negative, i.e. targeting
- // for the N+2 vsync instead of N+1. This means that:
- // For offset < threshold, SF wake up (vsync_duration - offset) before HW vsync.
- // For offset >= threshold, SF wake up (2 * vsync_duration - offset) before HW vsync.
- mThresholdForNextVsync(getProperty("debug.sf.phase_offset_threshold_for_next_vsync_ns")
- .value_or(std::numeric_limits<nsecs_t>::max())),
- mOffsets(initializeOffsets(refreshRateConfigs)),
- mRefreshRateFps(refreshRateConfigs.getCurrentRefreshRate().fps) {}
+ : PhaseOffsets(getRefreshRatesFromConfigs(refreshRateConfigs),
+ refreshRateConfigs.getCurrentRefreshRate().fps,
+ // Below defines the threshold when an offset is considered to be negative,
+ // i.e. targeting for the N+2 vsync instead of N+1. This means that: For offset
+ // < threshold, SF wake up (vsync_duration - offset) before HW vsync. For
+ // offset >= threshold, SF wake up (2 * vsync_duration - offset) before HW
+ // vsync.
+ getProperty("debug.sf.phase_offset_threshold_for_next_vsync_ns")
+ .value_or(std::numeric_limits<nsecs_t>::max())) {}
+
+PhaseOffsets::PhaseOffsets(const std::vector<float>& refreshRates, float currentFps,
+ nsecs_t thresholdForNextVsync)
+ : mThresholdForNextVsync(thresholdForNextVsync),
+ mOffsets(initializeOffsets(refreshRates)),
+ mRefreshRateFps(currentFps) {}
void PhaseOffsets::dump(std::string& result) const {
const auto [early, earlyGl, late] = getCurrentOffsets();
@@ -67,12 +87,12 @@
}
std::unordered_map<float, PhaseOffsets::Offsets> PhaseOffsets::initializeOffsets(
- const scheduler::RefreshRateConfigs& refreshRateConfigs) const {
+ const std::vector<float>& refreshRates) const {
std::unordered_map<float, Offsets> offsets;
- for (const auto& [ignored, refreshRate] : refreshRateConfigs.getAllRefreshRates()) {
- const float fps = refreshRate->fps;
- offsets.emplace(fps, getPhaseOffsets(fps, refreshRate->vsyncPeriod));
+ for (const auto& refreshRate : refreshRates) {
+ offsets.emplace(refreshRate,
+ getPhaseOffsets(refreshRate, static_cast<nsecs_t>(1e9f / refreshRate)));
}
return offsets;
}
@@ -243,19 +263,6 @@
};
}
-static std::vector<float> getRefreshRatesFromConfigs(
- const android::scheduler::RefreshRateConfigs& refreshRateConfigs) {
- const auto& allRefreshRates = refreshRateConfigs.getAllRefreshRates();
- std::vector<float> refreshRates;
- refreshRates.reserve(allRefreshRates.size());
-
- for (const auto& [ignored, refreshRate] : allRefreshRates) {
- refreshRates.emplace_back(refreshRate->fps);
- }
-
- return refreshRates;
-}
-
std::unordered_map<float, PhaseDurations::Offsets> PhaseDurations::initializeOffsets(
const std::vector<float>& refreshRates) const {
std::unordered_map<float, Offsets> offsets;