[SurfaceFlinger] Split VSyncModulator into .cpp/.h files
Future changes require this so that trace events can be added for this
class.
Bug: 133325345
Test: builds
Change-Id: I7b70a9df500b0fca5ae14e2b414d44ca11edf3ce
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index 4cd0a13..501d176 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -149,9 +149,10 @@
"Scheduler/LayerHistory.cpp",
"Scheduler/LayerInfo.cpp",
"Scheduler/MessageQueue.cpp",
+ "Scheduler/PhaseOffsets.cpp",
"Scheduler/Scheduler.cpp",
"Scheduler/SchedulerUtils.cpp",
- "Scheduler/PhaseOffsets.cpp",
+ "Scheduler/VSyncModulator.cpp",
"StartPropertySetThread.cpp",
"SurfaceFlinger.cpp",
"SurfaceInterceptor.cpp",
diff --git a/services/surfaceflinger/Scheduler/VSyncModulator.cpp b/services/surfaceflinger/Scheduler/VSyncModulator.cpp
new file mode 100644
index 0000000..af8f445
--- /dev/null
+++ b/services/surfaceflinger/Scheduler/VSyncModulator.cpp
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "VSyncModulator.h"
+
+#include <cinttypes>
+#include <mutex>
+
+namespace android {
+
+void VSyncModulator::setPhaseOffsets(Offsets early, Offsets earlyGl, Offsets late,
+ nsecs_t thresholdForNextVsync) {
+ mEarlyOffsets = early;
+ mEarlyGlOffsets = earlyGl;
+ mLateOffsets = late;
+ mThresholdForNextVsync = thresholdForNextVsync;
+
+ if (mSfConnectionHandle && late.sf != mOffsets.load().sf) {
+ mScheduler->setPhaseOffset(mSfConnectionHandle, late.sf);
+ }
+
+ if (mAppConnectionHandle && late.app != mOffsets.load().app) {
+ mScheduler->setPhaseOffset(mAppConnectionHandle, late.app);
+ }
+ mOffsets = late;
+}
+
+void VSyncModulator::setTransactionStart(Scheduler::TransactionStart transactionStart) {
+ if (transactionStart == Scheduler::TransactionStart::EARLY) {
+ mRemainingEarlyFrameCount = MIN_EARLY_FRAME_COUNT_TRANSACTION;
+ }
+
+ // An early transaction stays an early transaction.
+ if (transactionStart == mTransactionStart ||
+ mTransactionStart == Scheduler::TransactionStart::EARLY) {
+ return;
+ }
+ mTransactionStart = transactionStart;
+ updateOffsets();
+}
+
+void VSyncModulator::onTransactionHandled() {
+ if (mTransactionStart == Scheduler::TransactionStart::NORMAL) return;
+ mTransactionStart = Scheduler::TransactionStart::NORMAL;
+ updateOffsets();
+}
+
+void VSyncModulator::onRefreshRateChangeInitiated() {
+ if (mRefreshRateChangePending) {
+ return;
+ }
+ mRefreshRateChangePending = true;
+ updateOffsets();
+}
+
+void VSyncModulator::onRefreshRateChangeCompleted() {
+ if (!mRefreshRateChangePending) {
+ return;
+ }
+ mRefreshRateChangePending = false;
+ updateOffsets();
+}
+
+void VSyncModulator::onRefreshed(bool usedRenderEngine) {
+ bool updateOffsetsNeeded = false;
+ if (mRemainingEarlyFrameCount > 0) {
+ mRemainingEarlyFrameCount--;
+ updateOffsetsNeeded = true;
+ }
+ if (usedRenderEngine) {
+ mRemainingRenderEngineUsageCount = MIN_EARLY_GL_FRAME_COUNT_TRANSACTION;
+ updateOffsetsNeeded = true;
+ } else if (mRemainingRenderEngineUsageCount > 0) {
+ mRemainingRenderEngineUsageCount--;
+ updateOffsetsNeeded = true;
+ }
+ if (updateOffsetsNeeded) {
+ updateOffsets();
+ }
+}
+
+VSyncModulator::Offsets VSyncModulator::getOffsets() {
+ // Early offsets are used if we're in the middle of a refresh rate
+ // change, or if we recently begin a transaction.
+ if (mTransactionStart == Scheduler::TransactionStart::EARLY || mRemainingEarlyFrameCount > 0 ||
+ mRefreshRateChangePending) {
+ return mEarlyOffsets;
+ } else if (mRemainingRenderEngineUsageCount > 0) {
+ return mEarlyGlOffsets;
+ } else {
+ return mLateOffsets;
+ }
+}
+
+void VSyncModulator::updateOffsets() {
+ const Offsets desired = getOffsets();
+ const Offsets current = mOffsets;
+
+ bool changed = false;
+ if (desired.sf != current.sf) {
+ if (mSfConnectionHandle != nullptr) {
+ mScheduler->setPhaseOffset(mSfConnectionHandle, desired.sf);
+ } else {
+ mSfEventThread->setPhaseOffset(desired.sf);
+ }
+ changed = true;
+ }
+ if (desired.app != current.app) {
+ if (mAppConnectionHandle != nullptr) {
+ mScheduler->setPhaseOffset(mAppConnectionHandle, desired.app);
+ } else {
+ mAppEventThread->setPhaseOffset(desired.app);
+ }
+ changed = true;
+ }
+
+ if (changed) {
+ mOffsets = desired;
+ }
+}
+
+} // namespace android
diff --git a/services/surfaceflinger/Scheduler/VSyncModulator.h b/services/surfaceflinger/Scheduler/VSyncModulator.h
index 73a1fb9..677862e 100644
--- a/services/surfaceflinger/Scheduler/VSyncModulator.h
+++ b/services/surfaceflinger/Scheduler/VSyncModulator.h
@@ -16,8 +16,6 @@
#pragma once
-#include <utils/Errors.h>
-
#include <cinttypes>
#include <mutex>
@@ -41,6 +39,8 @@
const int MIN_EARLY_GL_FRAME_COUNT_TRANSACTION = 2;
public:
+ // Wrapper for a collection of surfaceflinger/app offsets for a particular
+ // configuration .
struct Offsets {
nsecs_t sf;
nsecs_t app;
@@ -57,32 +57,21 @@
// appEarlyGl: Like sfEarlyGl, but for the app-vsync.
// appLate: The regular app vsync phase offset.
void setPhaseOffsets(Offsets early, Offsets earlyGl, Offsets late,
- nsecs_t thresholdForNextVsync) {
- mEarlyOffsets = early;
- mEarlyGlOffsets = earlyGl;
- mLateOffsets = late;
- mThresholdForNextVsync = thresholdForNextVsync;
+ nsecs_t thresholdForNextVsync);
- if (mSfConnectionHandle && late.sf != mOffsets.load().sf) {
- mScheduler->setPhaseOffset(mSfConnectionHandle, late.sf);
- }
-
- if (mAppConnectionHandle && late.app != mOffsets.load().app) {
- mScheduler->setPhaseOffset(mAppConnectionHandle, late.app);
- }
-
- mOffsets = late;
- }
-
+ // Returns the configured early offsets.
Offsets getEarlyOffsets() const { return mEarlyOffsets; }
+ // Returns the configured early gl offsets.
Offsets getEarlyGlOffsets() const { return mEarlyGlOffsets; }
+ // Sets handles to the SF and app event threads.
void setEventThreads(EventThread* sfEventThread, EventThread* appEventThread) {
mSfEventThread = sfEventThread;
mAppEventThread = appEventThread;
}
+ // Sets the scheduler and vsync connection handlers.
void setSchedulerAndHandles(Scheduler* scheduler,
Scheduler::ConnectionHandle* appConnectionHandle,
Scheduler::ConnectionHandle* sfConnectionHandle) {
@@ -91,105 +80,31 @@
mSfConnectionHandle = sfConnectionHandle;
}
- void setTransactionStart(Scheduler::TransactionStart transactionStart) {
- if (transactionStart == Scheduler::TransactionStart::EARLY) {
- mRemainingEarlyFrameCount = MIN_EARLY_FRAME_COUNT_TRANSACTION;
- }
+ // Signals that a transaction has started, and changes offsets accordingly.
+ void setTransactionStart(Scheduler::TransactionStart transactionStart);
- // An early transaction stays an early transaction.
- if (transactionStart == mTransactionStart ||
- mTransactionStart == Scheduler::TransactionStart::EARLY) {
- return;
- }
- mTransactionStart = transactionStart;
- updateOffsets();
- }
-
- void onTransactionHandled() {
- if (mTransactionStart == Scheduler::TransactionStart::NORMAL) return;
- mTransactionStart = Scheduler::TransactionStart::NORMAL;
- updateOffsets();
- }
+ // Signals that a transaction has been completed, so that we can finish
+ // special handling for a transaction.
+ void onTransactionHandled();
// Called when we send a refresh rate change to hardware composer, so that
// we can move into early offsets.
- void onRefreshRateChangeInitiated() {
- if (mRefreshRateChangePending) {
- return;
- }
- mRefreshRateChangePending = true;
- updateOffsets();
- }
+ void onRefreshRateChangeInitiated();
// Called when we detect from vsync signals that the refresh rate changed.
// This way we can move out of early offsets if no longer necessary.
- void onRefreshRateChangeCompleted() {
- if (!mRefreshRateChangePending) {
- return;
- }
- mRefreshRateChangePending = false;
- updateOffsets();
- }
+ void onRefreshRateChangeCompleted();
- void onRefreshed(bool usedRenderEngine) {
- bool updateOffsetsNeeded = false;
- if (mRemainingEarlyFrameCount > 0) {
- mRemainingEarlyFrameCount--;
- updateOffsetsNeeded = true;
- }
- if (usedRenderEngine) {
- mRemainingRenderEngineUsageCount = MIN_EARLY_GL_FRAME_COUNT_TRANSACTION;
- updateOffsetsNeeded = true;
- } else if (mRemainingRenderEngineUsageCount > 0) {
- mRemainingRenderEngineUsageCount--;
- updateOffsetsNeeded = true;
- }
+ // Called when the display is presenting a new frame. usedRenderEngine
+ // should be set to true if RenderEngine was involved with composing the new
+ // frame.
+ void onRefreshed(bool usedRenderEngine);
- if (updateOffsetsNeeded) {
- updateOffsets();
- }
- }
-
- Offsets getOffsets() {
- // Early offsets are used if we're in the middle of a refresh rate
- // change, or if we recently begin a transaction.
- if (mTransactionStart == Scheduler::TransactionStart::EARLY ||
- mRemainingEarlyFrameCount > 0 || mRefreshRateChangePending) {
- return mEarlyOffsets;
- } else if (mRemainingRenderEngineUsageCount > 0) {
- return mEarlyGlOffsets;
- } else {
- return mLateOffsets;
- }
- }
+ // Returns the offsets that should be used.
+ Offsets getOffsets();
private:
- void updateOffsets() {
- const Offsets desired = getOffsets();
- const Offsets current = mOffsets;
-
- bool changed = false;
- if (desired.sf != current.sf) {
- if (mSfConnectionHandle != nullptr) {
- mScheduler->setPhaseOffset(mSfConnectionHandle, desired.sf);
- } else {
- mSfEventThread->setPhaseOffset(desired.sf);
- }
- changed = true;
- }
- if (desired.app != current.app) {
- if (mAppConnectionHandle != nullptr) {
- mScheduler->setPhaseOffset(mAppConnectionHandle, desired.app);
- } else {
- mAppEventThread->setPhaseOffset(desired.app);
- }
- changed = true;
- }
-
- if (changed) {
- mOffsets = desired;
- }
- }
+ void updateOffsets();
Offsets mLateOffsets;
Offsets mEarlyOffsets;
diff --git a/services/surfaceflinger/test.png b/services/surfaceflinger/test.png
new file mode 100644
index 0000000..773dcc3
--- /dev/null
+++ b/services/surfaceflinger/test.png
Binary files differ
