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-rw-r--r--services/surfaceflinger/DisplayDevice.h24
-rw-r--r--services/surfaceflinger/Layer.cpp7
-rw-r--r--services/surfaceflinger/MutexUtils.h53
-rw-r--r--services/surfaceflinger/SurfaceFlinger.cpp237
-rw-r--r--services/surfaceflinger/SurfaceFlinger.h14
-rw-r--r--services/surfaceflinger/ThreadContext.h (renamed from services/surfaceflinger/MainThreadGuard.h)18
-rw-r--r--services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h6
-rw-r--r--services/surfaceflinger/tests/unittests/DisplayDevice_SetDisplayBrightnessTest.cpp7
8 files changed, 181 insertions, 185 deletions
diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index 2c4a300a0b..d5d87b40de 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -21,6 +21,7 @@
#include <string>
#include <unordered_map>
+#include <android-base/thread_annotations.h>
#include <android/native_window.h>
#include <binder/IBinder.h>
#include <gui/LayerState.h>
@@ -28,6 +29,7 @@
#include <renderengine/RenderEngine.h>
#include <system/window.h>
#include <ui/DisplayId.h>
+#include <ui/DisplayIdentification.h>
#include <ui/DisplayState.h>
#include <ui/GraphicTypes.h>
#include <ui/HdrCapabilities.h>
@@ -39,15 +41,11 @@
#include <utils/RefBase.h>
#include <utils/Timers.h>
-#include "MainThreadGuard.h"
-
-#include <ui/DisplayIdentification.h>
#include "DisplayHardware/DisplayMode.h"
#include "DisplayHardware/Hal.h"
#include "DisplayHardware/PowerAdvisor.h"
-
#include "Scheduler/RefreshRateConfigs.h"
-
+#include "ThreadContext.h"
#include "TracedOrdinal.h"
namespace android {
@@ -99,9 +97,9 @@ public:
void setLayerStack(ui::LayerStack);
void setDisplaySize(int width, int height);
void setProjection(ui::Rotation orientation, Rect viewport, Rect frame);
- void stageBrightness(float brightness) REQUIRES(SF_MAIN_THREAD);
- void persistBrightness(bool needsComposite) REQUIRES(SF_MAIN_THREAD);
- bool isBrightnessStale() const REQUIRES(SF_MAIN_THREAD);
+ void stageBrightness(float brightness) REQUIRES(kMainThreadContext);
+ void persistBrightness(bool needsComposite) REQUIRES(kMainThreadContext);
+ bool isBrightnessStale() const REQUIRES(kMainThreadContext);
void setFlags(uint32_t flags);
ui::Rotation getPhysicalOrientation() const { return mPhysicalOrientation; }
@@ -109,7 +107,7 @@ public:
static ui::Transform::RotationFlags getPrimaryDisplayRotationFlags();
- std::optional<float> getStagedBrightness() const REQUIRES(SF_MAIN_THREAD);
+ std::optional<float> getStagedBrightness() const REQUIRES(kMainThreadContext);
ui::Transform::RotationFlags getTransformHint() const;
const ui::Transform& getTransform() const;
const Rect& getLayerStackSpaceRect() const;
@@ -209,15 +207,15 @@ public:
bool setDesiredActiveMode(const ActiveModeInfo&) EXCLUDES(mActiveModeLock);
std::optional<ActiveModeInfo> getDesiredActiveMode() const EXCLUDES(mActiveModeLock);
void clearDesiredActiveModeState() EXCLUDES(mActiveModeLock);
- ActiveModeInfo getUpcomingActiveMode() const REQUIRES(SF_MAIN_THREAD) {
+ ActiveModeInfo getUpcomingActiveMode() const REQUIRES(kMainThreadContext) {
return mUpcomingActiveMode;
}
- void setActiveMode(DisplayModeId) REQUIRES(SF_MAIN_THREAD);
+ void setActiveMode(DisplayModeId) REQUIRES(kMainThreadContext);
status_t initiateModeChange(const ActiveModeInfo&,
const hal::VsyncPeriodChangeConstraints& constraints,
hal::VsyncPeriodChangeTimeline* outTimeline)
- REQUIRES(SF_MAIN_THREAD);
+ REQUIRES(kMainThreadContext);
// Return the immutable list of supported display modes. The HWC may report different modes
// after a hotplug reconnect event, in which case the DisplayDevice object will be recreated.
@@ -304,7 +302,7 @@ private:
ActiveModeInfo mDesiredActiveMode GUARDED_BY(mActiveModeLock);
TracedOrdinal<bool> mDesiredActiveModeChanged
GUARDED_BY(mActiveModeLock) = {"DesiredActiveModeChanged", false};
- ActiveModeInfo mUpcomingActiveMode GUARDED_BY(SF_MAIN_THREAD);
+ ActiveModeInfo mUpcomingActiveMode GUARDED_BY(kMainThreadContext);
};
struct DisplayDeviceState {
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index fa5a1c82ba..894fb8d47b 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -37,6 +37,7 @@
#include <cutils/native_handle.h>
#include <cutils/properties.h>
#include <ftl/enum.h>
+#include <ftl/fake_guard.h>
#include <gui/BufferItem.h>
#include <gui/LayerDebugInfo.h>
#include <gui/Surface.h>
@@ -2045,10 +2046,10 @@ LayerProto* Layer::writeToProto(LayersProto& layersProto, uint32_t traceFlags) {
writeToProtoCommonState(layerProto, LayerVector::StateSet::Drawing, traceFlags);
if (traceFlags & LayerTracing::TRACE_COMPOSITION) {
+ ftl::FakeGuard guard(mFlinger->mStateLock); // Called from the main thread.
+
// Only populate for the primary display.
- UnnecessaryLock assumeLocked(mFlinger->mStateLock); // called from the main thread.
- const auto display = mFlinger->getDefaultDisplayDeviceLocked();
- if (display) {
+ if (const auto display = mFlinger->getDefaultDisplayDeviceLocked()) {
const auto compositionType = getCompositionType(*display);
layerProto->set_hwc_composition_type(static_cast<HwcCompositionType>(compositionType));
LayerProtoHelper::writeToProto(getVisibleRegion(display.get()),
diff --git a/services/surfaceflinger/MutexUtils.h b/services/surfaceflinger/MutexUtils.h
new file mode 100644
index 0000000000..f8be6f3b85
--- /dev/null
+++ b/services/surfaceflinger/MutexUtils.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 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.
+ */
+
+#pragma once
+
+#include <log/log.h>
+#include <utils/Mutex.h>
+
+namespace android {
+
+struct SCOPED_CAPABILITY ConditionalLock {
+ ConditionalLock(Mutex& mutex, bool lock) ACQUIRE(mutex) : mutex(mutex), lock(lock) {
+ if (lock) mutex.lock();
+ }
+
+ ~ConditionalLock() RELEASE() {
+ if (lock) mutex.unlock();
+ }
+
+ Mutex& mutex;
+ const bool lock;
+};
+
+struct SCOPED_CAPABILITY TimedLock {
+ TimedLock(Mutex& mutex, nsecs_t timeout, const char* whence) ACQUIRE(mutex)
+ : mutex(mutex), status(mutex.timedLock(timeout)) {
+ ALOGE_IF(!locked(), "%s timed out locking: %s (%d)", whence, strerror(-status), status);
+ }
+
+ ~TimedLock() RELEASE() {
+ if (locked()) mutex.unlock();
+ }
+
+ bool locked() const { return status == NO_ERROR; }
+
+ Mutex& mutex;
+ const status_t status;
+};
+
+} // namespace android
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 9f5a7df3aa..4fc9d273fc 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -24,7 +24,10 @@
#include "SurfaceFlinger.h"
+#include <android-base/parseint.h>
#include <android-base/properties.h>
+#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
#include <android/configuration.h>
#include <android/gui/IDisplayEventConnection.h>
#include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
@@ -49,6 +52,7 @@
#include <configstore/Utils.h>
#include <cutils/compiler.h>
#include <cutils/properties.h>
+#include <ftl/fake_guard.h>
#include <ftl/future.h>
#include <ftl/small_map.h>
#include <gui/BufferQueue.h>
@@ -123,6 +127,7 @@
#include "LayerRenderArea.h"
#include "LayerVector.h"
#include "MonitoredProducer.h"
+#include "MutexUtils.h"
#include "NativeWindowSurface.h"
#include "RefreshRateOverlay.h"
#include "RegionSamplingThread.h"
@@ -138,49 +143,26 @@
#include "TimeStats/TimeStats.h"
#include "TunnelModeEnabledReporter.h"
#include "WindowInfosListenerInvoker.h"
-#include "android-base/parseint.h"
-#include "android-base/stringprintf.h"
-#include "android-base/strings.h"
#include <aidl/android/hardware/graphics/common/DisplayDecorationSupport.h>
#include <aidl/android/hardware/graphics/composer3/DisplayCapability.h>
-#define MAIN_THREAD ACQUIRE(mStateLock) RELEASE(mStateLock)
-
-// Note: The parentheses around `expr` are needed to deduce an lvalue or rvalue reference.
-#define ON_MAIN_THREAD(expr) \
- [&]() -> decltype(auto) { \
- LOG_FATAL_IF(std::this_thread::get_id() != mMainThreadId); \
- UnnecessaryLock lock(mStateLock); \
- return (expr); \
- }()
-
-#define MAIN_THREAD_GUARD(expr) \
- [&]() -> decltype(auto) { \
- LOG_FATAL_IF(std::this_thread::get_id() != mMainThreadId); \
- MainThreadScopedGuard lock(SF_MAIN_THREAD); \
- return (expr); \
- }()
-
#undef NO_THREAD_SAFETY_ANALYSIS
#define NO_THREAD_SAFETY_ANALYSIS \
- _Pragma("GCC error \"Prefer MAIN_THREAD macros or {Conditional,Timed,Unnecessary}Lock.\"")
-
-using aidl::android::hardware::graphics::common::DisplayDecorationSupport;
-using aidl::android::hardware::graphics::composer3::Capability;
-using aidl::android::hardware::graphics::composer3::DisplayCapability;
-using KernelIdleTimerController =
- ::android::scheduler::RefreshRateConfigs::KernelIdleTimerController;
+ _Pragma("GCC error \"Prefer <ftl/fake_guard.h> or MutexUtils.h helpers.\"")
namespace android {
using namespace std::string_literals;
-using namespace android::hardware::configstore;
-using namespace android::hardware::configstore::V1_0;
-using namespace android::sysprop;
+using namespace hardware::configstore;
+using namespace hardware::configstore::V1_0;
+using namespace sysprop;
+
+using aidl::android::hardware::graphics::common::DisplayDecorationSupport;
+using aidl::android::hardware::graphics::composer3::Capability;
+using aidl::android::hardware::graphics::composer3::DisplayCapability;
-using android::hardware::power::Boost;
using base::StringAppendF;
using gui::DisplayInfo;
using gui::IDisplayEventConnection;
@@ -191,6 +173,8 @@ using ui::Dataspace;
using ui::DisplayPrimaries;
using ui::RenderIntent;
+using KernelIdleTimerController = scheduler::RefreshRateConfigs::KernelIdleTimerController;
+
namespace hal = android::hardware::graphics::composer::hal;
namespace {
@@ -222,38 +206,6 @@ bool isWideColorMode(const ColorMode colorMode) {
#pragma clang diagnostic pop
-template <typename Mutex>
-struct SCOPED_CAPABILITY ConditionalLockGuard {
- ConditionalLockGuard(Mutex& mutex, bool lock) ACQUIRE(mutex) : mutex(mutex), lock(lock) {
- if (lock) mutex.lock();
- }
-
- ~ConditionalLockGuard() RELEASE() {
- if (lock) mutex.unlock();
- }
-
- Mutex& mutex;
- const bool lock;
-};
-
-using ConditionalLock = ConditionalLockGuard<Mutex>;
-
-struct SCOPED_CAPABILITY TimedLock {
- TimedLock(Mutex& mutex, nsecs_t timeout, const char* whence) ACQUIRE(mutex)
- : mutex(mutex), status(mutex.timedLock(timeout)) {
- ALOGE_IF(!locked(), "%s timed out locking: %s (%d)", whence, strerror(-status), status);
- }
-
- ~TimedLock() RELEASE() {
- if (locked()) mutex.unlock();
- }
-
- bool locked() const { return status == NO_ERROR; }
-
- Mutex& mutex;
- const status_t status;
-};
-
// TODO(b/141333600): Consolidate with DisplayMode::Builder::getDefaultDensity.
constexpr float FALLBACK_DENSITY = ACONFIGURATION_DENSITY_TV;
@@ -735,7 +687,7 @@ void SurfaceFlinger::bootFinished() {
mBootStage = BootStage::FINISHED;
if (property_get_bool("sf.debug.show_refresh_rate_overlay", false)) {
- ON_MAIN_THREAD(enableRefreshRateOverlay(true));
+ FTL_FAKE_GUARD(mStateLock, enableRefreshRateOverlay(true));
}
}));
}
@@ -936,8 +888,9 @@ status_t SurfaceFlinger::getSupportedFrameTimestamps(
FrameEvent::DEQUEUE_READY,
FrameEvent::RELEASE,
};
- ConditionalLock _l(mStateLock,
- std::this_thread::get_id() != mMainThreadId);
+
+ ConditionalLock lock(mStateLock, std::this_thread::get_id() != mMainThreadId);
+
if (!getHwComposer().hasCapability(Capability::PRESENT_FENCE_IS_NOT_RELIABLE)) {
outSupported->push_back(FrameEvent::DISPLAY_PRESENT);
}
@@ -1142,7 +1095,7 @@ status_t SurfaceFlinger::setActiveModeFromBackdoor(const sp<IBinder>& displayTok
}
auto future = mScheduler->schedule([=]() -> status_t {
- const auto display = ON_MAIN_THREAD(getDisplayDeviceLocked(displayToken));
+ const auto display = FTL_FAKE_GUARD(mStateLock, getDisplayDeviceLocked(displayToken));
if (!display) {
ALOGE("Attempt to set allowed display modes for invalid display token %p",
displayToken.get());
@@ -1183,7 +1136,9 @@ void SurfaceFlinger::updateInternalStateWithChangedMode() {
return;
}
- const auto upcomingModeInfo = MAIN_THREAD_GUARD(display->getUpcomingActiveMode());
+ const auto upcomingModeInfo =
+ FTL_FAKE_GUARD(kMainThreadContext, display->getUpcomingActiveMode());
+
if (!upcomingModeInfo.mode) {
// There is no pending mode change. This can happen if the active
// display changed and the mode change happened on a different display.
@@ -1202,9 +1157,8 @@ void SurfaceFlinger::updateInternalStateWithChangedMode() {
return;
}
- // We just created this display so we can call even if we are not on
- // the main thread
- MainThreadScopedGuard fakeMainThreadGuard(SF_MAIN_THREAD);
+ // We just created this display so we can call even if we are not on the main thread.
+ ftl::FakeGuard guard(kMainThreadContext);
display->setActiveMode(upcomingModeInfo.mode->getId());
const Fps refreshRate = upcomingModeInfo.mode->getFps();
@@ -1289,8 +1243,10 @@ void SurfaceFlinger::setActiveModeInHwcIfNeeded() {
constraints.seamlessRequired = false;
hal::VsyncPeriodChangeTimeline outTimeline;
- const auto status = MAIN_THREAD_GUARD(
- display->initiateModeChange(*desiredActiveMode, constraints, &outTimeline));
+ const auto status = FTL_FAKE_GUARD(kMainThreadContext,
+ display->initiateModeChange(*desiredActiveMode,
+ constraints, &outTimeline));
+
if (status != NO_ERROR) {
// initiateModeChange may fail if a hotplug event is just about
// to be sent. We just log the error in this case.
@@ -1323,7 +1279,7 @@ void SurfaceFlinger::setActiveModeInHwcIfNeeded() {
}
void SurfaceFlinger::disableExpensiveRendering() {
- auto future = mScheduler->schedule([=]() MAIN_THREAD {
+ auto future = mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) {
ATRACE_CALL();
if (mPowerAdvisor.isUsingExpensiveRendering()) {
for (const auto& [_, display] : mDisplays) {
@@ -1372,7 +1328,7 @@ status_t SurfaceFlinger::setActiveColorMode(const sp<IBinder>& displayToken, Col
return BAD_VALUE;
}
- auto future = mScheduler->schedule([=]() MAIN_THREAD -> status_t {
+ auto future = mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) -> status_t {
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
ALOGE("Attempt to set active color mode %s (%d) for invalid display token %p",
@@ -1407,17 +1363,17 @@ status_t SurfaceFlinger::setActiveColorMode(const sp<IBinder>& displayToken, Col
}
status_t SurfaceFlinger::getBootDisplayModeSupport(bool* outSupport) const {
- auto future = mScheduler->schedule([=]() MAIN_THREAD mutable -> status_t {
- *outSupport = getHwComposer().hasCapability(Capability::BOOT_DISPLAY_CONFIG);
- return NO_ERROR;
- });
- return future.get();
+ auto future = mScheduler->schedule(
+ [this] { return getHwComposer().hasCapability(Capability::BOOT_DISPLAY_CONFIG); });
+
+ *outSupport = future.get();
+ return NO_ERROR;
}
status_t SurfaceFlinger::setBootDisplayMode(const sp<IBinder>& displayToken,
ui::DisplayModeId modeId) {
const char* const whence = __func__;
- auto future = mScheduler->schedule([=]() MAIN_THREAD -> status_t {
+ auto future = mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) -> status_t {
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
ALOGE("%s: Invalid display token %p", whence, displayToken.get());
@@ -1444,7 +1400,7 @@ status_t SurfaceFlinger::setBootDisplayMode(const sp<IBinder>& displayToken,
status_t SurfaceFlinger::clearBootDisplayMode(const sp<IBinder>& displayToken) {
const char* const whence = __func__;
- auto future = mScheduler->schedule([=]() MAIN_THREAD -> status_t {
+ auto future = mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) -> status_t {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
return getHwComposer().clearBootDisplayMode(*displayId);
} else {
@@ -1457,7 +1413,7 @@ status_t SurfaceFlinger::clearBootDisplayMode(const sp<IBinder>& displayToken) {
void SurfaceFlinger::setAutoLowLatencyMode(const sp<IBinder>& displayToken, bool on) {
const char* const whence = __func__;
- static_cast<void>(mScheduler->schedule([=]() MAIN_THREAD {
+ static_cast<void>(mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
getHwComposer().setAutoLowLatencyMode(*displayId, on);
} else {
@@ -1468,7 +1424,7 @@ void SurfaceFlinger::setAutoLowLatencyMode(const sp<IBinder>& displayToken, bool
void SurfaceFlinger::setGameContentType(const sp<IBinder>& displayToken, bool on) {
const char* const whence = __func__;
- static_cast<void>(mScheduler->schedule([=]() MAIN_THREAD {
+ static_cast<void>(mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
const auto type = on ? hal::ContentType::GAME : hal::ContentType::NONE;
getHwComposer().setContentType(*displayId, type);
@@ -1533,7 +1489,7 @@ status_t SurfaceFlinger::setDisplayContentSamplingEnabled(const sp<IBinder>& dis
bool enable, uint8_t componentMask,
uint64_t maxFrames) {
const char* const whence = __func__;
- auto future = mScheduler->schedule([=]() MAIN_THREAD -> status_t {
+ auto future = mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) -> status_t {
if (const auto displayId = getPhysicalDisplayIdLocked(displayToken)) {
return getHwComposer().setDisplayContentSamplingEnabled(*displayId, enable,
componentMask, maxFrames);
@@ -1610,7 +1566,7 @@ status_t SurfaceFlinger::injectVSync(nsecs_t when) {
status_t SurfaceFlinger::getLayerDebugInfo(std::vector<LayerDebugInfo>* outLayers) {
outLayers->clear();
auto future = mScheduler->schedule([=] {
- const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
+ const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
mDrawingState.traverseInZOrder([&](Layer* layer) {
outLayers->push_back(layer->getLayerDebugInfo(display.get()));
});
@@ -1722,7 +1678,7 @@ status_t SurfaceFlinger::setDisplayBrightness(const sp<IBinder>& displayToken,
}
const char* const whence = __func__;
- return ftl::chain(mScheduler->schedule([=]() MAIN_THREAD {
+ return ftl::chain(mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) {
if (const auto display = getDisplayDeviceLocked(displayToken)) {
const bool supportsDisplayBrightnessCommand =
getHwComposer().getComposer()->isSupported(
@@ -1736,7 +1692,9 @@ status_t SurfaceFlinger::setDisplayBrightness(const sp<IBinder>& displayToken,
compositionDisplay->editState().displayBrightnessNits;
compositionDisplay->setDisplayBrightness(brightness.sdrWhitePointNits,
brightness.displayBrightnessNits);
- MAIN_THREAD_GUARD(display->stageBrightness(brightness.displayBrightness));
+ FTL_FAKE_GUARD(kMainThreadContext,
+ display->stageBrightness(brightness.displayBrightness));
+
if (brightness.sdrWhitePointNits / brightness.displayBrightnessNits !=
currentDimmingRatio) {
scheduleComposite(FrameHint::kNone);
@@ -1806,6 +1764,7 @@ status_t SurfaceFlinger::removeHdrLayerInfoListener(
}
status_t SurfaceFlinger::notifyPowerBoost(int32_t boostId) {
+ using hardware::power::Boost;
Boost powerBoost = static_cast<Boost>(boostId);
if (powerBoost == Boost::INTERACTION) {
@@ -1966,7 +1925,7 @@ void SurfaceFlinger::setVsyncEnabled(bool enabled) {
ATRACE_CALL();
// On main thread to avoid race conditions with display power state.
- static_cast<void>(mScheduler->schedule([=]() MAIN_THREAD {
+ static_cast<void>(mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) {
mHWCVsyncPendingState = enabled ? hal::Vsync::ENABLE : hal::Vsync::DISABLE;
if (const auto display = getDefaultDisplayDeviceLocked();
@@ -2014,8 +1973,8 @@ nsecs_t SurfaceFlinger::calculateExpectedPresentTime(DisplayStatInfo stats) cons
: stats.vsyncTime + stats.vsyncPeriod;
}
-bool SurfaceFlinger::commit(nsecs_t frameTime, int64_t vsyncId, nsecs_t expectedVsyncTime) {
- MainThreadScopedGuard mainThreadGuard(SF_MAIN_THREAD);
+bool SurfaceFlinger::commit(nsecs_t frameTime, int64_t vsyncId, nsecs_t expectedVsyncTime)
+ FTL_FAKE_GUARD(kMainThreadContext) {
// we set this once at the beginning of commit to ensure consistency throughout the whole frame
mPowerHintSessionData.sessionEnabled = mPowerAdvisor.usePowerHintSession();
if (mPowerHintSessionData.sessionEnabled) {
@@ -2181,20 +2140,21 @@ bool SurfaceFlinger::commit(nsecs_t frameTime, int64_t vsyncId, nsecs_t expected
mLayerTracing.notify(mVisibleRegionsDirty, frameTime);
}
- MAIN_THREAD_GUARD(persistDisplayBrightness(mustComposite));
+ persistDisplayBrightness(mustComposite);
return mustComposite && CC_LIKELY(mBootStage != BootStage::BOOTLOADER);
}
-void SurfaceFlinger::composite(nsecs_t frameTime, int64_t vsyncId) {
+void SurfaceFlinger::composite(nsecs_t frameTime, int64_t vsyncId)
+ FTL_FAKE_GUARD(kMainThreadContext) {
ATRACE_FORMAT("%s %" PRId64, __func__, vsyncId);
- MainThreadScopedGuard mainThreadGuard(SF_MAIN_THREAD);
+
if (mPowerHintSessionData.sessionEnabled) {
mPowerHintSessionData.compositeStart = systemTime();
}
compositionengine::CompositionRefreshArgs refreshArgs;
- const auto& displays = ON_MAIN_THREAD(mDisplays);
+ const auto& displays = FTL_FAKE_GUARD(mStateLock, mDisplays);
refreshArgs.outputs.reserve(displays.size());
for (const auto& [_, display] : displays) {
refreshArgs.outputs.push_back(display->getCompositionDisplay());
@@ -2432,7 +2392,7 @@ void SurfaceFlinger::postComposition() {
ATRACE_CALL();
ALOGV("postComposition");
- const auto* display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked()).get();
+ const auto* display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked()).get();
getBE().mGlCompositionDoneTimeline.updateSignalTimes();
std::shared_ptr<FenceTime> glCompositionDoneFenceTime;
@@ -2632,44 +2592,37 @@ void SurfaceFlinger::postComposition() {
}
FloatRect SurfaceFlinger::getMaxDisplayBounds() {
- // Find the largest width and height among all the displays.
- int32_t maxDisplayWidth = 0;
- int32_t maxDisplayHeight = 0;
-
- // If there are no displays, set a valid display bounds so we can still compute a valid layer
- // bounds.
- if (ON_MAIN_THREAD(mDisplays.size()) == 0) {
- maxDisplayWidth = maxDisplayHeight = 5000;
- }
-
- for (const auto& pair : ON_MAIN_THREAD(mDisplays)) {
- const auto& displayDevice = pair.second;
- int32_t width = displayDevice->getWidth();
- int32_t height = displayDevice->getHeight();
- if (width > maxDisplayWidth) {
- maxDisplayWidth = width;
- }
- if (height > maxDisplayHeight) {
- maxDisplayHeight = height;
- }
- }
+ const ui::Size maxSize = [this] {
+ ftl::FakeGuard guard(mStateLock);
+
+ // The LayerTraceGenerator tool runs without displays.
+ if (mDisplays.empty()) return ui::Size{5000, 5000};
+
+ return std::accumulate(mDisplays.begin(), mDisplays.end(), ui::kEmptySize,
+ [](ui::Size size, const auto& pair) -> ui::Size {
+ const auto& display = pair.second;
+ return {std::max(size.getWidth(), display->getWidth()),
+ std::max(size.getHeight(), display->getHeight())};
+ });
+ }();
// Ignore display bounds for now since they will be computed later. Use a large Rect bound
// to ensure it's bigger than an actual display will be.
- FloatRect maxBounds = FloatRect(-maxDisplayWidth * 10, -maxDisplayHeight * 10,
- maxDisplayWidth * 10, maxDisplayHeight * 10);
- return maxBounds;
+ const float xMax = maxSize.getWidth() * 10.f;
+ const float yMax = maxSize.getHeight() * 10.f;
+
+ return {-xMax, -yMax, xMax, yMax};
}
void SurfaceFlinger::computeLayerBounds() {
- FloatRect maxBounds = getMaxDisplayBounds();
+ const FloatRect maxBounds = getMaxDisplayBounds();
for (const auto& layer : mDrawingState.layersSortedByZ) {
layer->computeBounds(maxBounds, ui::Transform(), 0.f /* shadowRadius */);
}
}
void SurfaceFlinger::postFrame() {
- const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
+ const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
if (display && getHwComposer().isConnected(display->getPhysicalId())) {
uint32_t flipCount = display->getPageFlipCount();
if (flipCount % LOG_FRAME_STATS_PERIOD == 0) {
@@ -2923,7 +2876,8 @@ sp<DisplayDevice> SurfaceFlinger::setupNewDisplayDeviceInternal(
RenderIntent::COLORIMETRIC,
Dataspace::UNKNOWN});
if (!state.isVirtual()) {
- MAIN_THREAD_GUARD(display->setActiveMode(state.physical->activeMode->getId()));
+ FTL_FAKE_GUARD(kMainThreadContext,
+ display->setActiveMode(state.physical->activeMode->getId()));
display->setDeviceProductInfo(state.physical->deviceProductInfo);
}
@@ -3293,7 +3247,7 @@ void SurfaceFlinger::persistDisplayBrightness(bool needsComposite) {
return;
}
- for (const auto& [_, display] : ON_MAIN_THREAD(mDisplays)) {
+ for (const auto& [_, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
if (const auto brightness = display->getStagedBrightness(); brightness) {
if (!needsComposite) {
const status_t error =
@@ -3316,7 +3270,7 @@ void SurfaceFlinger::buildWindowInfos(std::vector<WindowInfo>& outWindowInfos,
std::vector<DisplayInfo>& outDisplayInfos) {
ftl::SmallMap<ui::LayerStack, DisplayDevice::InputInfo, 4> displayInputInfos;
- for (const auto& [_, display] : ON_MAIN_THREAD(mDisplays)) {
+ for (const auto& [_, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
const auto layerStack = display->getLayerStack();
const auto info = display->getInputInfo();
@@ -3361,7 +3315,7 @@ void SurfaceFlinger::buildWindowInfos(std::vector<WindowInfo>& outWindowInfos,
void SurfaceFlinger::updateCursorAsync() {
compositionengine::CompositionRefreshArgs refreshArgs;
- for (const auto& [_, display] : ON_MAIN_THREAD(mDisplays)) {
+ for (const auto& [_, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
if (HalDisplayId::tryCast(display->getId())) {
refreshArgs.outputs.push_back(display->getCompositionDisplay());
}
@@ -3546,7 +3500,7 @@ void SurfaceFlinger::commitOffscreenLayers() {
}
void SurfaceFlinger::invalidateLayerStack(const sp<const Layer>& layer, const Region& dirty) {
- for (const auto& [token, displayDevice] : ON_MAIN_THREAD(mDisplays)) {
+ for (const auto& [token, displayDevice] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
auto display = displayDevice->getCompositionDisplay();
if (display->includesLayer(layer->getOutputFilter())) {
display->editState().dirtyRegion.orSelf(dirty);
@@ -4832,7 +4786,8 @@ void SurfaceFlinger::onInitializeDisplays() {
void SurfaceFlinger::initializeDisplays() {
// Async since we may be called from the main thread.
- static_cast<void>(mScheduler->schedule([this]() MAIN_THREAD { onInitializeDisplays(); }));
+ static_cast<void>(
+ mScheduler->schedule([this]() FTL_FAKE_GUARD(mStateLock) { onInitializeDisplays(); }));
}
void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, hal::PowerMode mode) {
@@ -4932,7 +4887,7 @@ void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, hal:
}
void SurfaceFlinger::setPowerMode(const sp<IBinder>& displayToken, int mode) {
- auto future = mScheduler->schedule([=]() MAIN_THREAD {
+ auto future = mScheduler->schedule([=]() FTL_FAKE_GUARD(mStateLock) {
const auto display = getDisplayDeviceLocked(displayToken);
if (!display) {
ALOGE("Attempt to set power mode %d for invalid display token %p", mode,
@@ -4979,7 +4934,7 @@ status_t SurfaceFlinger::doDump(int fd, const DumpArgs& args, bool asProto) {
bool dumpLayers = true;
{
- TimedLock lock(mStateLock, s2ns(1), __FUNCTION__);
+ TimedLock lock(mStateLock, s2ns(1), __func__);
if (!lock.locked()) {
StringAppendF(&result, "Dumping without lock after timeout: %s (%d)\n",
strerror(-lock.status), lock.status);
@@ -5067,8 +5022,6 @@ void SurfaceFlinger::dumpFrameTimeline(const DumpArgs& args, std::string& result
mFrameTimeline->parseArgs(args, result);
}
-// This should only be called from the main thread. Otherwise it would need
-// the lock and should use mCurrentState rather than mDrawingState.
void SurfaceFlinger::logFrameStats() {
mDrawingState.traverse([&](Layer* layer) {
layer->logFrameStats();
@@ -5226,7 +5179,7 @@ LayersProto SurfaceFlinger::dumpDrawingStateProto(uint32_t traceFlags) const {
}
void SurfaceFlinger::dumpDisplayProto(LayersTraceProto& layersTraceProto) const {
- for (const auto& [_, display] : ON_MAIN_THREAD(mDisplays)) {
+ for (const auto& [_, display] : FTL_FAKE_GUARD(mStateLock, mDisplays)) {
DisplayProto* displayProto = layersTraceProto.add_displays();
displayProto->set_id(display->getId().value);
displayProto->set_name(display->getDisplayName());
@@ -5867,7 +5820,7 @@ status_t SurfaceFlinger::onTransact(uint32_t code, const Parcel& data, Parcel* r
int64_t startingTime =
(fixedStartingTime) ? fixedStartingTime : systemTime();
mScheduler
- ->schedule([&]() MAIN_THREAD {
+ ->schedule([&]() FTL_FAKE_GUARD(mStateLock) {
mLayerTracing.notify("start", startingTime);
})
.wait();
@@ -5980,10 +5933,12 @@ status_t SurfaceFlinger::onTransact(uint32_t code, const Parcel& data, Parcel* r
switch (n = data.readInt32()) {
case 0:
case 1:
- ON_MAIN_THREAD(enableRefreshRateOverlay(static_cast<bool>(n)));
+ FTL_FAKE_GUARD(mStateLock,
+ enableRefreshRateOverlay(static_cast<bool>(n)));
break;
default: {
- reply->writeBool(ON_MAIN_THREAD(isRefreshRateOverlayEnabled()));
+ reply->writeBool(
+ FTL_FAKE_GUARD(mStateLock, isRefreshRateOverlayEnabled()));
}
}
});
@@ -6021,7 +5976,7 @@ status_t SurfaceFlinger::onTransact(uint32_t code, const Parcel& data, Parcel* r
return mScheduler
->schedule([this] {
const auto display =
- ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
+ FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
// This is a little racy, but not in a way that hurts anything. As
// we grab the defaultMode from the display manager policy, we could
@@ -6043,7 +5998,7 @@ status_t SurfaceFlinger::onTransact(uint32_t code, const Parcel& data, Parcel* r
return mScheduler
->schedule([this] {
const auto display =
- ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
+ FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
constexpr bool kOverridePolicy = true;
return setDesiredDisplayModeSpecsInternal(display, {},
kOverridePolicy);
@@ -6159,7 +6114,7 @@ void SurfaceFlinger::kernelTimerChanged(bool expired) {
// Update the overlay on the main thread to avoid race conditions with
// mRefreshRateConfigs->getActiveMode()
static_cast<void>(mScheduler->schedule([=] {
- const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked());
+ const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked());
if (!display) {
ALOGW("%s: default display is null", __func__);
return;
@@ -6957,7 +6912,7 @@ status_t SurfaceFlinger::setDesiredDisplayModeSpecs(
}
auto future = mScheduler->schedule([=]() -> status_t {
- const auto display = ON_MAIN_THREAD(getDisplayDeviceLocked(displayToken));
+ const auto display = FTL_FAKE_GUARD(mStateLock, getDisplayDeviceLocked(displayToken));
if (!display) {
ALOGE("Attempt to set desired display modes for invalid display token %p",
displayToken.get());
@@ -7202,7 +7157,7 @@ uint32_t SurfaceFlinger::getMaxAcquiredBufferCountForCurrentRefreshRate(uid_t ui
if (const auto frameRateOverride = mScheduler->getFrameRateOverride(uid)) {
refreshRate = *frameRateOverride;
} else if (!getHwComposer().isHeadless()) {
- if (const auto display = ON_MAIN_THREAD(getDefaultDisplayDeviceLocked())) {
+ if (const auto display = FTL_FAKE_GUARD(mStateLock, getDefaultDisplayDeviceLocked())) {
refreshRate = display->refreshRateConfigs().getActiveMode()->getFps();
}
}
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index f2636b446f..97b0e8db5c 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -64,6 +64,7 @@
#include "Scheduler/Scheduler.h"
#include "Scheduler/VsyncModulator.h"
#include "SurfaceFlingerFactory.h"
+#include "ThreadContext.h"
#include "TracedOrdinal.h"
#include "Tracing/LayerTracing.h"
#include "Tracing/TransactionTracing.h"
@@ -183,11 +184,6 @@ struct SurfaceFlingerBE {
std::atomic<nsecs_t> mLastSwapTime = 0;
};
-struct SCOPED_CAPABILITY UnnecessaryLock {
- explicit UnnecessaryLock(Mutex& mutex) ACQUIRE(mutex) {}
- ~UnnecessaryLock() RELEASE() {}
-};
-
class SurfaceFlinger : public BnSurfaceComposer,
public PriorityDumper,
private IBinder::DeathRecipient,
@@ -740,7 +736,7 @@ private:
void updateLayerGeometry();
void updateInputFlinger();
- void persistDisplayBrightness(bool needsComposite) REQUIRES(SF_MAIN_THREAD);
+ void persistDisplayBrightness(bool needsComposite) REQUIRES(kMainThreadContext);
void buildWindowInfos(std::vector<gui::WindowInfo>& outWindowInfos,
std::vector<gui::DisplayInfo>& outDisplayInfos);
void commitInputWindowCommands() REQUIRES(mStateLock);
@@ -973,7 +969,7 @@ private:
void setCompositorTimingSnapped(const DisplayStatInfo& stats,
nsecs_t compositeToPresentLatency);
- void postFrame();
+ void postFrame() REQUIRES(kMainThreadContext);
/*
* Display management
@@ -1088,7 +1084,7 @@ private:
void clearStatsLocked(const DumpArgs& args, std::string& result);
void dumpTimeStats(const DumpArgs& args, bool asProto, std::string& result) const;
void dumpFrameTimeline(const DumpArgs& args, std::string& result) const;
- void logFrameStats();
+ void logFrameStats() REQUIRES(kMainThreadContext);
void dumpVSync(std::string& result) const REQUIRES(mStateLock);
void dumpStaticScreenStats(std::string& result) const;
@@ -1431,7 +1427,7 @@ private:
nsecs_t commitStart;
nsecs_t compositeStart;
nsecs_t presentEnd;
- } mPowerHintSessionData GUARDED_BY(SF_MAIN_THREAD);
+ } mPowerHintSessionData GUARDED_BY(kMainThreadContext);
nsecs_t mAnimationTransactionTimeout = s2ns(5);
diff --git a/services/surfaceflinger/MainThreadGuard.h b/services/surfaceflinger/ThreadContext.h
index c1aa118492..85c379d58f 100644
--- a/services/surfaceflinger/MainThreadGuard.h
+++ b/services/surfaceflinger/ThreadContext.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 2022 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.
@@ -16,20 +16,10 @@
#pragma once
-#include <utils/Mutex.h>
-
namespace android {
-namespace {
-// Helps to ensure that some functions runs on SF's main thread by using the
-// clang thread safety annotations.
-class CAPABILITY("mutex") MainThreadGuard {
-} SF_MAIN_THREAD;
+// Enforces exclusive access by the main thread.
+constexpr class [[clang::capability("mutex")]] {
+} kMainThreadContext;
-struct SCOPED_CAPABILITY MainThreadScopedGuard {
-public:
- explicit MainThreadScopedGuard(MainThreadGuard& mutex) ACQUIRE(mutex) {}
- ~MainThreadScopedGuard() RELEASE() {}
-};
-} // namespace
} // namespace android
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
index 1d0f62b99b..a80aca2f73 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_fuzzers_utils.h
@@ -22,6 +22,7 @@
#include <compositionengine/impl/CompositionEngine.h>
#include <compositionengine/impl/Display.h>
#include <compositionengine/impl/OutputLayerCompositionState.h>
+#include <ftl/fake_guard.h>
#include <gui/LayerDebugInfo.h>
#include <gui/ScreenCaptureResults.h>
#include <gui/SurfaceComposerClient.h>
@@ -50,6 +51,7 @@
#include "SurfaceFlinger.h"
#include "SurfaceFlingerDefaultFactory.h"
#include "SurfaceInterceptor.h"
+#include "ThreadContext.h"
#include "TimeStats/TimeStats.h"
#include "renderengine/mock/RenderEngine.h"
@@ -445,7 +447,7 @@ public:
mFlinger->clearStatsLocked(dumpArgs, result);
mFlinger->dumpTimeStats(dumpArgs, fdp->ConsumeBool(), result);
- mFlinger->logFrameStats();
+ FTL_FAKE_GUARD(kMainThreadContext, mFlinger->logFrameStats());
result = fdp->ConsumeRandomLengthString().c_str();
mFlinger->dumpFrameTimeline(dumpArgs, result);
@@ -651,7 +653,7 @@ public:
updateCompositorTiming(&mFdp);
mFlinger->setCompositorTimingSnapped({}, mFdp.ConsumeIntegral<nsecs_t>());
- mFlinger->postFrame();
+ FTL_FAKE_GUARD(kMainThreadContext, mFlinger->postFrame());
mFlinger->calculateExpectedPresentTime({});
mFlinger->enableHalVirtualDisplays(mFdp.ConsumeBool());
diff --git a/services/surfaceflinger/tests/unittests/DisplayDevice_SetDisplayBrightnessTest.cpp b/services/surfaceflinger/tests/unittests/DisplayDevice_SetDisplayBrightnessTest.cpp
index 73c60e1035..225ad163d9 100644
--- a/services/surfaceflinger/tests/unittests/DisplayDevice_SetDisplayBrightnessTest.cpp
+++ b/services/surfaceflinger/tests/unittests/DisplayDevice_SetDisplayBrightnessTest.cpp
@@ -19,6 +19,7 @@
#include "DisplayTransactionTestHelpers.h"
+#include <ftl/fake_guard.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
@@ -35,7 +36,7 @@ public:
};
TEST_F(SetDisplayBrightnessTest, persistDisplayBrightnessNoComposite) {
- MainThreadScopedGuard fakeMainThreadGuard(SF_MAIN_THREAD);
+ ftl::FakeGuard guard(kMainThreadContext);
sp<DisplayDevice> displayDevice = getDisplayDevice();
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
@@ -52,7 +53,7 @@ TEST_F(SetDisplayBrightnessTest, persistDisplayBrightnessNoComposite) {
}
TEST_F(SetDisplayBrightnessTest, persistDisplayBrightnessWithComposite) {
- MainThreadScopedGuard fakeMainThreadGuard(SF_MAIN_THREAD);
+ ftl::FakeGuard guard(kMainThreadContext);
sp<DisplayDevice> displayDevice = getDisplayDevice();
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
@@ -70,7 +71,7 @@ TEST_F(SetDisplayBrightnessTest, persistDisplayBrightnessWithComposite) {
}
TEST_F(SetDisplayBrightnessTest, persistDisplayBrightnessWithCompositeShortCircuitsOnNoOp) {
- MainThreadScopedGuard fakeMainThreadGuard(SF_MAIN_THREAD);
+ ftl::FakeGuard guard(kMainThreadContext);
sp<DisplayDevice> displayDevice = getDisplayDevice();
EXPECT_EQ(std::nullopt, displayDevice->getStagedBrightness());
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-11-02 07:49:03 +0000