EGL: Add eglGetCompositorTimingANDROID.
Exposes the composite deadline, composite interval, and
the composite to present latency.
A history of composite and present fences are stored.
When the present fence's timestamp becomes known,
the composite to present latency is updated with
sampling jitter removed.
The values are updated in the producer when timestamps
are enabled and on queue and dequeue.
The deadline is snapped to the next expected deadline
based on the current systemTime().
Test: adb shell /data/nativetest/libgui_test/libgui_test
--gtest_filter=*GetFrameTimestamps*
Change-Id: I406814258613b984b56488236632494f2f61ff2e
diff --git a/libs/gui/FrameTimestamps.cpp b/libs/gui/FrameTimestamps.cpp
index 73537bf..a6fa38a 100644
--- a/libs/gui/FrameTimestamps.cpp
+++ b/libs/gui/FrameTimestamps.cpp
@@ -235,6 +235,23 @@
ProducerFrameEventHistory::~ProducerFrameEventHistory() = default;
+nsecs_t ProducerFrameEventHistory::snapToNextTick(
+ nsecs_t timestamp, nsecs_t tickPhase, nsecs_t tickInterval) {
+ nsecs_t tickOffset = (tickPhase - timestamp) % tickInterval;
+ // Integer modulo rounds towards 0 and not -inf before taking the remainder,
+ // so adjust the offset if it is negative.
+ if (tickOffset < 0) {
+ tickOffset += tickInterval;
+ }
+ return timestamp + tickOffset;
+}
+
+nsecs_t ProducerFrameEventHistory::getNextCompositeDeadline(
+ const nsecs_t now) const{
+ return snapToNextTick(
+ now, mCompositorTiming.deadline, mCompositorTiming.interval);
+}
+
void ProducerFrameEventHistory::updateAcquireFence(
uint64_t frameNumber, std::shared_ptr<FenceTime>&& acquire) {
FrameEvents* frame = getFrame(frameNumber, &mAcquireOffset);
@@ -256,6 +273,8 @@
void ProducerFrameEventHistory::applyDelta(
const FrameEventHistoryDelta& delta) {
+ mCompositorTiming = delta.mCompositorTiming;
+
for (auto& d : delta.mDeltas) {
// Avoid out-of-bounds access.
if (d.mIndex >= mFrames.size()) {
@@ -346,6 +365,11 @@
ConsumerFrameEventHistory::~ConsumerFrameEventHistory() = default;
+void ConsumerFrameEventHistory::initializeCompositorTiming(
+ const CompositorTiming& compositorTiming) {
+ mCompositorTiming = compositorTiming;
+}
+
void ConsumerFrameEventHistory::addQueue(const NewFrameEventsEntry& newEntry) {
// Overwrite all fields of the frame with default values unless set here.
FrameEvents newTimestamps;
@@ -393,7 +417,10 @@
void ConsumerFrameEventHistory::addPostComposition(uint64_t frameNumber,
const std::shared_ptr<FenceTime>& gpuCompositionDone,
- const std::shared_ptr<FenceTime>& displayPresent) {
+ const std::shared_ptr<FenceTime>& displayPresent,
+ const CompositorTiming& compositorTiming) {
+ mCompositorTiming = compositorTiming;
+
FrameEvents* frame = getFrame(frameNumber, &mCompositionOffset);
if (frame == nullptr) {
ALOGE_IF(mProducerWantsEvents,
@@ -450,6 +477,8 @@
void ConsumerFrameEventHistory::getAndResetDelta(
FrameEventHistoryDelta* delta) {
+ delta->mCompositorTiming = mCompositorTiming;
+
// Write these in order of frame number so that it is easy to
// add them to a FenceTimeline in the proper order producer side.
delta->mDeltas.reserve(mFramesDirty.size());
@@ -499,9 +528,8 @@
}
}
-size_t FrameEventsDelta::minFlattenedSize() {
- constexpr size_t min =
- sizeof(FrameEventsDelta::mFrameNumber) +
+constexpr size_t FrameEventsDelta::minFlattenedSize() {
+ return sizeof(FrameEventsDelta::mFrameNumber) +
sizeof(uint8_t) + // mIndex
sizeof(uint8_t) + // mAddPostCompositeCalled
sizeof(uint8_t) + // mAddRetireCalled
@@ -512,7 +540,6 @@
sizeof(FrameEventsDelta::mFirstRefreshStartTime) +
sizeof(FrameEventsDelta::mLastRefreshStartTime) +
sizeof(FrameEventsDelta::mDequeueReadyTime);
- return min;
}
// Flattenable implementation
@@ -618,6 +645,8 @@
FrameEventHistoryDelta& FrameEventHistoryDelta::operator=(
FrameEventHistoryDelta&& src) {
+ mCompositorTiming = src.mCompositorTiming;
+
if (CC_UNLIKELY(!mDeltas.empty())) {
ALOGE("FrameEventHistoryDelta: Clobbering history.");
}
@@ -626,8 +655,9 @@
return *this;
}
-size_t FrameEventHistoryDelta::minFlattenedSize() {
- return sizeof(uint32_t);
+constexpr size_t FrameEventHistoryDelta::minFlattenedSize() {
+ return sizeof(uint32_t) + // mDeltas.size()
+ sizeof(mCompositorTiming);
}
size_t FrameEventHistoryDelta::getFlattenedSize() const {
@@ -654,6 +684,8 @@
return NO_MEMORY;
}
+ FlattenableUtils::write(buffer, size, mCompositorTiming);
+
FlattenableUtils::write(
buffer, size, static_cast<uint32_t>(mDeltas.size()));
for (auto& d : mDeltas) {
@@ -671,6 +703,8 @@
return NO_MEMORY;
}
+ FlattenableUtils::read(buffer, size, mCompositorTiming);
+
uint32_t deltaCount = 0;
FlattenableUtils::read(buffer, size, deltaCount);
if (deltaCount > FrameEventHistory::MAX_FRAME_HISTORY) {