Increase frame history size when SF buffer queue size changes
While the existing frame history size is sufficient for graphics, the
buffer queue sizes for video playback are much larger (more pipelined)
so in order for accurate frame tracking of video frames, increase the
frame event history size based on the buffer queue size (pipeline size),
so that buffer queue producers can always track all frames that have
been queued.
Bug: 234833109
Test: atest DecoderRenderTest
Change-Id: Ida587a239a03f74ebb099d8634ff722a500fcdda
diff --git a/libs/gui/FrameTimestamps.cpp b/libs/gui/FrameTimestamps.cpp
index e2ea3f9..f3eb4e8 100644
--- a/libs/gui/FrameTimestamps.cpp
+++ b/libs/gui/FrameTimestamps.cpp
@@ -168,10 +168,11 @@
} // namespace
-const size_t FrameEventHistory::MAX_FRAME_HISTORY =
+const size_t FrameEventHistory::INITIAL_MAX_FRAME_HISTORY =
sysprop::LibGuiProperties::frame_event_history_size().value_or(8);
-FrameEventHistory::FrameEventHistory() : mFrames(std::vector<FrameEvents>(MAX_FRAME_HISTORY)) {}
+FrameEventHistory::FrameEventHistory()
+ : mFrames(std::vector<FrameEvents>(INITIAL_MAX_FRAME_HISTORY)) {}
FrameEventHistory::~FrameEventHistory() = default;
@@ -227,7 +228,6 @@
}
}
-
// ============================================================================
// ProducerFrameEventHistory
// ============================================================================
@@ -273,6 +273,13 @@
const FrameEventHistoryDelta& delta) {
mCompositorTiming = delta.mCompositorTiming;
+ // Deltas should have enough reserved capacity for the consumer-side, therefore if there's a
+ // different capacity, we re-sized on the consumer side and now need to resize on the producer
+ // side.
+ if (delta.mDeltas.capacity() > mFrames.capacity()) {
+ resize(delta.mDeltas.capacity());
+ }
+
for (auto& d : delta.mDeltas) {
// Avoid out-of-bounds access.
if (CC_UNLIKELY(d.mIndex >= mFrames.size())) {
@@ -349,13 +356,48 @@
return std::make_shared<FenceTime>(fence);
}
+void ProducerFrameEventHistory::resize(size_t newSize) {
+ // we don't want to drop events by resizing too small, so don't resize in the negative direction
+ if (newSize <= mFrames.size()) {
+ return;
+ }
+
+ // This algorithm for resizing needs to be the same as ConsumerFrameEventHistory::resize,
+ // because the indexes need to match when communicating the FrameEventDeltas.
+
+ // We need to find the oldest frame, because that frame needs to move to index 0 in the new
+ // frame history.
+ size_t oldestFrameIndex = 0;
+ size_t oldestFrameNumber = INT32_MAX;
+ for (size_t i = 0; i < mFrames.size(); ++i) {
+ if (mFrames[i].frameNumber < oldestFrameNumber && mFrames[i].valid) {
+ oldestFrameNumber = mFrames[i].frameNumber;
+ oldestFrameIndex = i;
+ }
+ }
+
+ // move the existing frame information into a new vector, so that the oldest frames are at
+ // index 0, and the latest frames are at the end of the vector
+ std::vector<FrameEvents> newFrames(newSize);
+ size_t oldI = oldestFrameIndex;
+ size_t newI = 0;
+ do {
+ if (mFrames[oldI].valid) {
+ newFrames[newI++] = std::move(mFrames[oldI]);
+ }
+ oldI = (oldI + 1) % mFrames.size();
+ } while (oldI != oldestFrameIndex);
+
+ mFrames = std::move(newFrames);
+ mAcquireOffset = 0; // this is just a hint, so setting this to anything is fine
+}
// ============================================================================
// ConsumerFrameEventHistory
// ============================================================================
ConsumerFrameEventHistory::ConsumerFrameEventHistory()
- : mFramesDirty(std::vector<FrameEventDirtyFields>(MAX_FRAME_HISTORY)) {}
+ : mFramesDirty(std::vector<FrameEventDirtyFields>(INITIAL_MAX_FRAME_HISTORY)) {}
ConsumerFrameEventHistory::~ConsumerFrameEventHistory() = default;
@@ -489,6 +531,36 @@
}
}
+void ConsumerFrameEventHistory::resize(size_t newSize) {
+ // we don't want to drop events by resizing too small, so don't resize in the negative direction
+ if (newSize <= mFrames.size()) {
+ return;
+ }
+
+ // This algorithm for resizing needs to be the same as ProducerFrameEventHistory::resize,
+ // because the indexes need to match when communicating the FrameEventDeltas.
+
+ // move the existing frame information into a new vector, so that the oldest frames are at
+ // index 0, and the latest frames are towards the end of the vector
+ std::vector<FrameEvents> newFrames(newSize);
+ std::vector<FrameEventDirtyFields> newFramesDirty(newSize);
+ size_t oldestFrameIndex = mQueueOffset;
+ size_t oldI = oldestFrameIndex;
+ size_t newI = 0;
+ do {
+ if (mFrames[oldI].valid) {
+ newFrames[newI] = std::move(mFrames[oldI]);
+ newFramesDirty[newI] = mFramesDirty[oldI];
+ newI += 1;
+ }
+ oldI = (oldI + 1) % mFrames.size();
+ } while (oldI != oldestFrameIndex);
+
+ mFrames = std::move(newFrames);
+ mFramesDirty = std::move(newFramesDirty);
+ mQueueOffset = newI;
+ mCompositionOffset = 0; // this is just a hint, so setting this to anything is fine
+}
// ============================================================================
// FrameEventsDelta
@@ -558,8 +630,7 @@
return NO_MEMORY;
}
- if (mIndex >= FrameEventHistory::MAX_FRAME_HISTORY ||
- mIndex > std::numeric_limits<uint16_t>::max()) {
+ if (mIndex >= UINT8_MAX || mIndex < 0) {
return BAD_VALUE;
}
@@ -601,7 +672,7 @@
uint16_t temp16 = 0;
FlattenableUtils::read(buffer, size, temp16);
mIndex = temp16;
- if (mIndex >= FrameEventHistory::MAX_FRAME_HISTORY) {
+ if (mIndex >= UINT8_MAX) {
return BAD_VALUE;
}
uint8_t temp8 = 0;
@@ -627,6 +698,25 @@
return NO_ERROR;
}
+uint64_t FrameEventsDelta::getFrameNumber() const {
+ return mFrameNumber;
+}
+
+bool FrameEventsDelta::getLatchTime(nsecs_t* latchTime) const {
+ if (mLatchTime == FrameEvents::TIMESTAMP_PENDING) {
+ return false;
+ }
+ *latchTime = mLatchTime;
+ return true;
+}
+
+bool FrameEventsDelta::getDisplayPresentFence(sp<Fence>* fence) const {
+ if (mDisplayPresentFence.fence == Fence::NO_FENCE) {
+ return false;
+ }
+ *fence = mDisplayPresentFence.fence;
+ return true;
+}
// ============================================================================
// FrameEventHistoryDelta
@@ -665,7 +755,7 @@
status_t FrameEventHistoryDelta::flatten(
void*& buffer, size_t& size, int*& fds, size_t& count) const {
- if (mDeltas.size() > FrameEventHistory::MAX_FRAME_HISTORY) {
+ if (mDeltas.size() > UINT8_MAX) {
return BAD_VALUE;
}
if (size < getFlattenedSize()) {
@@ -695,7 +785,7 @@
uint32_t deltaCount = 0;
FlattenableUtils::read(buffer, size, deltaCount);
- if (deltaCount > FrameEventHistory::MAX_FRAME_HISTORY) {
+ if (deltaCount > UINT8_MAX) {
return BAD_VALUE;
}
mDeltas.resize(deltaCount);
@@ -708,5 +798,12 @@
return NO_ERROR;
}
+std::vector<FrameEventsDelta>::const_iterator FrameEventHistoryDelta::begin() const {
+ return mDeltas.begin();
+}
+
+std::vector<FrameEventsDelta>::const_iterator FrameEventHistoryDelta::end() const {
+ return mDeltas.end();
+}
} // namespace android