| File: | var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp |
| Warning: | line 1864, column 29 Called C++ object pointer is null |
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| 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |||
| 2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ | |||
| 3 | /* This Source Code Form is subject to the terms of the Mozilla Public | |||
| 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this | |||
| 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |||
| 6 | ||||
| 7 | /* | |||
| 8 | * Code to notify things that animate before a refresh, at an appropriate | |||
| 9 | * refresh rate. (Perhaps temporary, until replaced by compositor.) | |||
| 10 | * | |||
| 11 | * Chrome and each tab have their own RefreshDriver, which in turn | |||
| 12 | * hooks into one of a few global timer based on RefreshDriverTimer, | |||
| 13 | * defined below. There are two main global timers -- one for active | |||
| 14 | * animations, and one for inactive ones. These are implemented as | |||
| 15 | * subclasses of RefreshDriverTimer; see below for a description of | |||
| 16 | * their implementations. In the future, additional timer types may | |||
| 17 | * implement things like blocking on vsync. | |||
| 18 | */ | |||
| 19 | ||||
| 20 | #include "nsRefreshDriver.h" | |||
| 21 | #include "mozilla/DataMutex.h" | |||
| 22 | #include "nsThreadUtils.h" | |||
| 23 | ||||
| 24 | #ifdef XP_WIN | |||
| 25 | # include <windows.h> | |||
| 26 | // mmsystem isn't part of WIN32_LEAN_AND_MEAN, so we have | |||
| 27 | // to manually include it | |||
| 28 | # include <mmsystem.h> | |||
| 29 | # include "WinUtils.h" | |||
| 30 | #endif | |||
| 31 | ||||
| 32 | #include "mozilla/AnimationEventDispatcher.h" | |||
| 33 | #include "mozilla/ArrayUtils.h" | |||
| 34 | #include "mozilla/Assertions.h" | |||
| 35 | #include "mozilla/AutoRestore.h" | |||
| 36 | #include "mozilla/BasePrincipal.h" | |||
| 37 | #include "mozilla/dom/MediaQueryList.h" | |||
| 38 | #include "mozilla/CycleCollectedJSContext.h" | |||
| 39 | #include "mozilla/DisplayPortUtils.h" | |||
| 40 | #include "mozilla/Hal.h" | |||
| 41 | #include "mozilla/InputTaskManager.h" | |||
| 42 | #include "mozilla/IntegerRange.h" | |||
| 43 | #include "mozilla/PresShell.h" | |||
| 44 | #include "mozilla/VsyncTaskManager.h" | |||
| 45 | #include "nsITimer.h" | |||
| 46 | #include "nsLayoutUtils.h" | |||
| 47 | #include "nsPresContext.h" | |||
| 48 | #include "imgRequest.h" | |||
| 49 | #include "nsComponentManagerUtils.h" | |||
| 50 | #include "mozilla/Logging.h" | |||
| 51 | #include "mozilla/dom/Document.h" | |||
| 52 | #include "mozilla/dom/DocumentTimeline.h" | |||
| 53 | #include "mozilla/dom/DocumentInlines.h" | |||
| 54 | #include "mozilla/dom/HTMLVideoElement.h" | |||
| 55 | #include "nsIXULRuntime.h" | |||
| 56 | #include "jsapi.h" | |||
| 57 | #include "nsContentUtils.h" | |||
| 58 | #include "nsTextFrame.h" | |||
| 59 | #include "mozilla/PendingFullscreenEvent.h" | |||
| 60 | #include "mozilla/dom/PerformanceMainThread.h" | |||
| 61 | #include "mozilla/Preferences.h" | |||
| 62 | #include "mozilla/StaticPrefs_apz.h" | |||
| 63 | #include "mozilla/StaticPrefs_gfx.h" | |||
| 64 | #include "mozilla/StaticPrefs_idle_period.h" | |||
| 65 | #include "mozilla/StaticPrefs_layout.h" | |||
| 66 | #include "mozilla/StaticPrefs_page_load.h" | |||
| 67 | #include "nsViewManager.h" | |||
| 68 | #include "GeckoProfiler.h" | |||
| 69 | #include "mozilla/dom/BrowserChild.h" | |||
| 70 | #include "mozilla/dom/CallbackDebuggerNotification.h" | |||
| 71 | #include "mozilla/dom/ContentChild.h" | |||
| 72 | #include "mozilla/dom/Event.h" | |||
| 73 | #include "mozilla/dom/Performance.h" | |||
| 74 | #include "mozilla/dom/Selection.h" | |||
| 75 | #include "mozilla/dom/VsyncMainChild.h" | |||
| 76 | #include "mozilla/dom/WindowBinding.h" | |||
| 77 | #include "mozilla/dom/LargestContentfulPaint.h" | |||
| 78 | #include "mozilla/layers/WebRenderLayerManager.h" | |||
| 79 | #include "mozilla/RestyleManager.h" | |||
| 80 | #include "mozilla/TaskController.h" | |||
| 81 | #include "imgIContainer.h" | |||
| 82 | #include "mozilla/dom/ScriptSettings.h" | |||
| 83 | #include "nsDocShell.h" | |||
| 84 | #include "nsISimpleEnumerator.h" | |||
| 85 | #include "nsJSEnvironment.h" | |||
| 86 | #include "mozilla/ScopeExit.h" | |||
| 87 | #include "mozilla/Telemetry.h" | |||
| 88 | ||||
| 89 | #include "mozilla/ipc/BackgroundChild.h" | |||
| 90 | #include "mozilla/ipc/PBackgroundChild.h" | |||
| 91 | #include "VsyncSource.h" | |||
| 92 | #include "mozilla/VsyncDispatcher.h" | |||
| 93 | #include "mozilla/Unused.h" | |||
| 94 | #include "nsAnimationManager.h" | |||
| 95 | #include "nsDisplayList.h" | |||
| 96 | #include "nsDOMNavigationTiming.h" | |||
| 97 | #include "nsTransitionManager.h" | |||
| 98 | ||||
| 99 | #if defined(MOZ_WIDGET_ANDROID) | |||
| 100 | # include "VRManagerChild.h" | |||
| 101 | #endif // defined(MOZ_WIDGET_ANDROID) | |||
| 102 | ||||
| 103 | #include "nsXULPopupManager.h" | |||
| 104 | ||||
| 105 | #include <numeric> | |||
| 106 | ||||
| 107 | using namespace mozilla; | |||
| 108 | using namespace mozilla::widget; | |||
| 109 | using namespace mozilla::ipc; | |||
| 110 | using namespace mozilla::dom; | |||
| 111 | using namespace mozilla::layout; | |||
| 112 | ||||
| 113 | static mozilla::LazyLogModule sRefreshDriverLog("nsRefreshDriver"); | |||
| 114 | #define LOG(...) \ | |||
| 115 | MOZ_LOG(sRefreshDriverLog, mozilla::LogLevel::Debug, (__VA_ARGS__))do { const ::mozilla::LogModule* moz_real_module = sRefreshDriverLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, __VA_ARGS__); } } while (0) | |||
| 116 | ||||
| 117 | // after 10 minutes, stop firing off inactive timers | |||
| 118 | #define DEFAULT_INACTIVE_TIMER_DISABLE_SECONDS600 600 | |||
| 119 | ||||
| 120 | // The number of seconds spent skipping frames because we are waiting for the | |||
| 121 | // compositor before logging. | |||
| 122 | #if defined(MOZ_ASAN) | |||
| 123 | # define REFRESH_WAIT_WARNING5 5 | |||
| 124 | #elif defined(DEBUG1) && !defined(MOZ_VALGRIND) | |||
| 125 | # define REFRESH_WAIT_WARNING5 5 | |||
| 126 | #elif defined(DEBUG1) && defined(MOZ_VALGRIND) | |||
| 127 | # define REFRESH_WAIT_WARNING5 (RUNNING_ON_VALGRIND ? 20 : 5) | |||
| 128 | #elif defined(MOZ_VALGRIND) | |||
| 129 | # define REFRESH_WAIT_WARNING5 (RUNNING_ON_VALGRIND ? 10 : 1) | |||
| 130 | #else | |||
| 131 | # define REFRESH_WAIT_WARNING5 1 | |||
| 132 | #endif | |||
| 133 | ||||
| 134 | MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(nsRefreshDriver::TickReasons)inline constexpr mozilla::CastableTypedEnumResult<nsRefreshDriver ::TickReasons> operator |( nsRefreshDriver::TickReasons a, nsRefreshDriver::TickReasons b) { typedef mozilla::CastableTypedEnumResult <nsRefreshDriver::TickReasons> Result; typedef mozilla:: detail::UnsignedIntegerTypeForEnum<nsRefreshDriver::TickReasons >::Type U; return Result(nsRefreshDriver::TickReasons(U(a) | U(b))); } inline nsRefreshDriver::TickReasons& operator |=(nsRefreshDriver::TickReasons & a, nsRefreshDriver::TickReasons b) { return a = a | b; } inline constexpr mozilla::CastableTypedEnumResult <nsRefreshDriver::TickReasons> operator &( nsRefreshDriver ::TickReasons a, nsRefreshDriver::TickReasons b) { typedef mozilla ::CastableTypedEnumResult<nsRefreshDriver::TickReasons> Result; typedef mozilla::detail::UnsignedIntegerTypeForEnum< nsRefreshDriver::TickReasons>::Type U; return Result(nsRefreshDriver ::TickReasons(U(a) & U(b))); } inline nsRefreshDriver::TickReasons & operator &=(nsRefreshDriver::TickReasons & a, nsRefreshDriver ::TickReasons b) { return a = a & b; } inline constexpr mozilla ::CastableTypedEnumResult<nsRefreshDriver::TickReasons> operator ^( nsRefreshDriver::TickReasons a, nsRefreshDriver:: TickReasons b) { typedef mozilla::CastableTypedEnumResult< nsRefreshDriver::TickReasons> Result; typedef mozilla::detail ::UnsignedIntegerTypeForEnum<nsRefreshDriver::TickReasons> ::Type U; return Result(nsRefreshDriver::TickReasons(U(a) ^ U (b))); } inline nsRefreshDriver::TickReasons& operator ^= (nsRefreshDriver::TickReasons & a, nsRefreshDriver::TickReasons b) { return a = a ^ b; } inline constexpr mozilla::CastableTypedEnumResult <nsRefreshDriver::TickReasons> operator~(nsRefreshDriver ::TickReasons a) { typedef mozilla::CastableTypedEnumResult< nsRefreshDriver::TickReasons> Result; typedef mozilla::detail ::UnsignedIntegerTypeForEnum<nsRefreshDriver::TickReasons> ::Type U; return Result(nsRefreshDriver::TickReasons(~(U(a))) ); }; | |||
| 135 | ||||
| 136 | namespace { | |||
| 137 | // The number outstanding nsRefreshDrivers (that have been created but not | |||
| 138 | // disconnected). When this reaches zero we will call | |||
| 139 | // nsRefreshDriver::Shutdown. | |||
| 140 | static uint32_t sRefreshDriverCount = 0; | |||
| 141 | } // namespace | |||
| 142 | ||||
| 143 | namespace mozilla { | |||
| 144 | ||||
| 145 | static TimeStamp sMostRecentHighRateVsync; | |||
| 146 | ||||
| 147 | static TimeDuration sMostRecentHighRate; | |||
| 148 | ||||
| 149 | /* | |||
| 150 | * The base class for all global refresh driver timers. It takes care | |||
| 151 | * of managing the list of refresh drivers attached to them and | |||
| 152 | * provides interfaces for querying/setting the rate and actually | |||
| 153 | * running a timer 'Tick'. Subclasses must implement StartTimer(), | |||
| 154 | * StopTimer(), and ScheduleNextTick() -- the first two just | |||
| 155 | * start/stop whatever timer mechanism is in use, and ScheduleNextTick | |||
| 156 | * is called at the start of the Tick() implementation to set a time | |||
| 157 | * for the next tick. | |||
| 158 | */ | |||
| 159 | class RefreshDriverTimer { | |||
| 160 | public: | |||
| 161 | RefreshDriverTimer() = default; | |||
| 162 | ||||
| 163 | NS_INLINE_DECL_REFCOUNTING(RefreshDriverTimer)public: MozExternalRefCountType AddRef(void) { static_assert( !std::is_destructible_v<RefreshDriverTimer>, "Reference-counted class " "RefreshDriverTimer" " should not have a public destructor. " "Make this class's destructor non-public"); do { static_assert ( mozilla::detail::AssertionConditionType<decltype(int32_t (mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 163); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 163; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("RefreshDriverTimer" " not thread-safe"); ++mRefCnt; NS_LogAddRef((this), (mRefCnt ), ("RefreshDriverTimer"), (uint32_t)(sizeof(*this))); return mRefCnt; } MozExternalRefCountType Release(void) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(int32_t (mRefCnt) > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) > 0))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 163); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 163 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("RefreshDriverTimer" " not thread-safe"); --mRefCnt; NS_LogRelease((this), (mRefCnt ), ("RefreshDriverTimer")); if (mRefCnt == 0) { mRefCnt = 1; delete (this); return 0; } return mRefCnt; } using HasThreadSafeRefCnt = std::false_type; protected: nsAutoRefCnt mRefCnt; nsAutoOwningThread _mOwningThread; public: | |||
| 164 | ||||
| 165 | virtual void AddRefreshDriver(nsRefreshDriver* aDriver) { | |||
| 166 | LOG("[%p] AddRefreshDriver %p", this, aDriver); | |||
| 167 | ||||
| 168 | bool startTimer = | |||
| 169 | mContentRefreshDrivers.IsEmpty() && mRootRefreshDrivers.IsEmpty(); | |||
| 170 | if (IsRootRefreshDriver(aDriver)) { | |||
| 171 | NS_ASSERTION(!mRootRefreshDrivers.Contains(aDriver),do { if (!(!mRootRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Adding a duplicate root refresh driver!" , "!mRootRefreshDrivers.Contains(aDriver)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 172); MOZ_PretendNoReturn(); } } while (0) | |||
| 172 | "Adding a duplicate root refresh driver!")do { if (!(!mRootRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Adding a duplicate root refresh driver!" , "!mRootRefreshDrivers.Contains(aDriver)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 172); MOZ_PretendNoReturn(); } } while (0); | |||
| 173 | mRootRefreshDrivers.AppendElement(aDriver); | |||
| 174 | } else { | |||
| 175 | NS_ASSERTION(!mContentRefreshDrivers.Contains(aDriver),do { if (!(!mContentRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Adding a duplicate content refresh driver!" , "!mContentRefreshDrivers.Contains(aDriver)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 176); MOZ_PretendNoReturn(); } } while (0) | |||
| 176 | "Adding a duplicate content refresh driver!")do { if (!(!mContentRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Adding a duplicate content refresh driver!" , "!mContentRefreshDrivers.Contains(aDriver)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 176); MOZ_PretendNoReturn(); } } while (0); | |||
| 177 | mContentRefreshDrivers.AppendElement(aDriver); | |||
| 178 | } | |||
| 179 | ||||
| 180 | if (startTimer) { | |||
| 181 | StartTimer(); | |||
| 182 | } | |||
| 183 | } | |||
| 184 | ||||
| 185 | void RemoveRefreshDriver(nsRefreshDriver* aDriver) { | |||
| 186 | LOG("[%p] RemoveRefreshDriver %p", this, aDriver); | |||
| 187 | ||||
| 188 | if (IsRootRefreshDriver(aDriver)) { | |||
| 189 | NS_ASSERTION(mRootRefreshDrivers.Contains(aDriver),do { if (!(mRootRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver for a refresh driver that's not in the " "root refresh list!", "mRootRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 191); MOZ_PretendNoReturn(); } } while (0) | |||
| 190 | "RemoveRefreshDriver for a refresh driver that's not in the "do { if (!(mRootRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver for a refresh driver that's not in the " "root refresh list!", "mRootRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 191); MOZ_PretendNoReturn(); } } while (0) | |||
| 191 | "root refresh list!")do { if (!(mRootRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver for a refresh driver that's not in the " "root refresh list!", "mRootRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 191); MOZ_PretendNoReturn(); } } while (0); | |||
| 192 | mRootRefreshDrivers.RemoveElement(aDriver); | |||
| 193 | } else { | |||
| 194 | nsPresContext* pc = aDriver->GetPresContext(); | |||
| 195 | nsPresContext* rootContext = pc ? pc->GetRootPresContext() : nullptr; | |||
| 196 | // During PresContext shutdown, we can't accurately detect | |||
| 197 | // if a root refresh driver exists or not. Therefore, we have to | |||
| 198 | // search and find out which list this driver exists in. | |||
| 199 | if (!rootContext) { | |||
| 200 | if (mRootRefreshDrivers.Contains(aDriver)) { | |||
| 201 | mRootRefreshDrivers.RemoveElement(aDriver); | |||
| 202 | } else { | |||
| 203 | NS_ASSERTION(mContentRefreshDrivers.Contains(aDriver),do { if (!(mContentRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver without a display root for a " "driver that is not in the content refresh list", "mContentRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 205); MOZ_PretendNoReturn(); } } while (0) | |||
| 204 | "RemoveRefreshDriver without a display root for a "do { if (!(mContentRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver without a display root for a " "driver that is not in the content refresh list", "mContentRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 205); MOZ_PretendNoReturn(); } } while (0) | |||
| 205 | "driver that is not in the content refresh list")do { if (!(mContentRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver without a display root for a " "driver that is not in the content refresh list", "mContentRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 205); MOZ_PretendNoReturn(); } } while (0); | |||
| 206 | mContentRefreshDrivers.RemoveElement(aDriver); | |||
| 207 | } | |||
| 208 | } else { | |||
| 209 | NS_ASSERTION(mContentRefreshDrivers.Contains(aDriver),do { if (!(mContentRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver for a driver that is not in the " "content refresh list", "mContentRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 211); MOZ_PretendNoReturn(); } } while (0) | |||
| 210 | "RemoveRefreshDriver for a driver that is not in the "do { if (!(mContentRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver for a driver that is not in the " "content refresh list", "mContentRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 211); MOZ_PretendNoReturn(); } } while (0) | |||
| 211 | "content refresh list")do { if (!(mContentRefreshDrivers.Contains(aDriver))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "RemoveRefreshDriver for a driver that is not in the " "content refresh list", "mContentRefreshDrivers.Contains(aDriver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 211); MOZ_PretendNoReturn(); } } while (0); | |||
| 212 | mContentRefreshDrivers.RemoveElement(aDriver); | |||
| 213 | } | |||
| 214 | } | |||
| 215 | ||||
| 216 | bool stopTimer = | |||
| 217 | mContentRefreshDrivers.IsEmpty() && mRootRefreshDrivers.IsEmpty(); | |||
| 218 | if (stopTimer) { | |||
| 219 | StopTimer(); | |||
| 220 | } | |||
| 221 | } | |||
| 222 | ||||
| 223 | TimeStamp MostRecentRefresh() const { return mLastFireTime; } | |||
| 224 | VsyncId MostRecentRefreshVsyncId() const { return mLastFireId; } | |||
| 225 | virtual bool IsBlocked() { return false; } | |||
| 226 | ||||
| 227 | virtual TimeDuration GetTimerRate() = 0; | |||
| 228 | ||||
| 229 | TimeStamp GetIdleDeadlineHint(TimeStamp aDefault) { | |||
| 230 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 230; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 231 | ||||
| 232 | if (!IsTicking() && !gfxPlatform::IsInLayoutAsapMode()) { | |||
| 233 | return aDefault; | |||
| 234 | } | |||
| 235 | ||||
| 236 | TimeStamp mostRecentRefresh = MostRecentRefresh(); | |||
| 237 | TimeDuration refreshPeriod = GetTimerRate(); | |||
| 238 | TimeStamp idleEnd = mostRecentRefresh + refreshPeriod; | |||
| 239 | double highRateMultiplier = nsRefreshDriver::HighRateMultiplier(); | |||
| 240 | ||||
| 241 | // If we haven't painted for some time, then guess that we won't paint | |||
| 242 | // again for a while, so the refresh driver is not a good way to predict | |||
| 243 | // idle time. | |||
| 244 | if (highRateMultiplier == 1.0 && | |||
| 245 | (idleEnd + | |||
| 246 | refreshPeriod * | |||
| 247 | StaticPrefs::layout_idle_period_required_quiescent_frames() < | |||
| 248 | TimeStamp::Now())) { | |||
| 249 | return aDefault; | |||
| 250 | } | |||
| 251 | ||||
| 252 | // End the predicted idle time a little early, the amount controlled by a | |||
| 253 | // pref, to prevent overrunning the idle time and delaying a frame. | |||
| 254 | // But do that only if we aren't in high rate mode. | |||
| 255 | idleEnd = idleEnd - TimeDuration::FromMilliseconds( | |||
| 256 | highRateMultiplier * | |||
| 257 | StaticPrefs::layout_idle_period_time_limit()); | |||
| 258 | return idleEnd < aDefault ? idleEnd : aDefault; | |||
| 259 | } | |||
| 260 | ||||
| 261 | Maybe<TimeStamp> GetNextTickHint() { | |||
| 262 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 262); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 262; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 263 | TimeStamp nextTick = MostRecentRefresh() + GetTimerRate(); | |||
| 264 | return nextTick < TimeStamp::Now() ? Nothing() : Some(nextTick); | |||
| 265 | } | |||
| 266 | ||||
| 267 | // Returns null if the RefreshDriverTimer is attached to several | |||
| 268 | // RefreshDrivers. That may happen for example when there are | |||
| 269 | // several windows open. | |||
| 270 | nsPresContext* GetPresContextForOnlyRefreshDriver() { | |||
| 271 | if (mRootRefreshDrivers.Length() == 1 && mContentRefreshDrivers.IsEmpty()) { | |||
| 272 | return mRootRefreshDrivers[0]->GetPresContext(); | |||
| 273 | } | |||
| 274 | if (mContentRefreshDrivers.Length() == 1 && mRootRefreshDrivers.IsEmpty()) { | |||
| 275 | return mContentRefreshDrivers[0]->GetPresContext(); | |||
| 276 | } | |||
| 277 | return nullptr; | |||
| 278 | } | |||
| 279 | ||||
| 280 | bool IsAnyToplevelContentPageLoading() { | |||
| 281 | for (nsTArray<RefPtr<nsRefreshDriver>>* drivers : | |||
| 282 | {&mRootRefreshDrivers, &mContentRefreshDrivers}) { | |||
| 283 | for (RefPtr<nsRefreshDriver>& driver : *drivers) { | |||
| 284 | if (nsPresContext* pc = driver->GetPresContext()) { | |||
| 285 | if (pc->Document()->IsTopLevelContentDocument() && | |||
| 286 | pc->Document()->GetReadyStateEnum() < | |||
| 287 | Document::READYSTATE_COMPLETE) { | |||
| 288 | return true; | |||
| 289 | } | |||
| 290 | } | |||
| 291 | } | |||
| 292 | } | |||
| 293 | ||||
| 294 | return false; | |||
| 295 | } | |||
| 296 | ||||
| 297 | protected: | |||
| 298 | virtual ~RefreshDriverTimer() { | |||
| 299 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(mContentRefreshDrivers.Length() == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mContentRefreshDrivers.Length () == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mContentRefreshDrivers.Length() == 0" " (" "Should have removed all content refresh drivers from here by now!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 301); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mContentRefreshDrivers.Length() == 0" ") (" "Should have removed all content refresh drivers from here by now!" ")"); do { *((volatile int*)__null) = 301; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 300 | mContentRefreshDrivers.Length() == 0,do { static_assert( mozilla::detail::AssertionConditionType< decltype(mContentRefreshDrivers.Length() == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mContentRefreshDrivers.Length () == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mContentRefreshDrivers.Length() == 0" " (" "Should have removed all content refresh drivers from here by now!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 301); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mContentRefreshDrivers.Length() == 0" ") (" "Should have removed all content refresh drivers from here by now!" ")"); do { *((volatile int*)__null) = 301; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 301 | "Should have removed all content refresh drivers from here by now!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mContentRefreshDrivers.Length() == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mContentRefreshDrivers.Length () == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mContentRefreshDrivers.Length() == 0" " (" "Should have removed all content refresh drivers from here by now!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 301); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mContentRefreshDrivers.Length() == 0" ") (" "Should have removed all content refresh drivers from here by now!" ")"); do { *((volatile int*)__null) = 301; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 302 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRootRefreshDrivers.Length() == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mRootRefreshDrivers.Length() == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mRootRefreshDrivers.Length() == 0" " (" "Should have removed all root refresh drivers from here by now!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 304); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRootRefreshDrivers.Length() == 0" ") (" "Should have removed all root refresh drivers from here by now!" ")"); do { *((volatile int*)__null) = 304; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 303 | mRootRefreshDrivers.Length() == 0,do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRootRefreshDrivers.Length() == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mRootRefreshDrivers.Length() == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mRootRefreshDrivers.Length() == 0" " (" "Should have removed all root refresh drivers from here by now!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 304); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRootRefreshDrivers.Length() == 0" ") (" "Should have removed all root refresh drivers from here by now!" ")"); do { *((volatile int*)__null) = 304; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 304 | "Should have removed all root refresh drivers from here by now!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRootRefreshDrivers.Length() == 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mRootRefreshDrivers.Length() == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mRootRefreshDrivers.Length() == 0" " (" "Should have removed all root refresh drivers from here by now!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 304); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRootRefreshDrivers.Length() == 0" ") (" "Should have removed all root refresh drivers from here by now!" ")"); do { *((volatile int*)__null) = 304; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 305 | } | |||
| 306 | ||||
| 307 | virtual void StartTimer() = 0; | |||
| 308 | virtual void StopTimer() = 0; | |||
| 309 | virtual void ScheduleNextTick(TimeStamp aNowTime) = 0; | |||
| 310 | ||||
| 311 | public: | |||
| 312 | virtual bool IsTicking() const = 0; | |||
| 313 | ||||
| 314 | protected: | |||
| 315 | bool IsRootRefreshDriver(nsRefreshDriver* aDriver) { | |||
| 316 | nsPresContext* pc = aDriver->GetPresContext(); | |||
| 317 | nsPresContext* rootContext = pc ? pc->GetRootPresContext() : nullptr; | |||
| 318 | if (!rootContext) { | |||
| 319 | return false; | |||
| 320 | } | |||
| 321 | ||||
| 322 | return aDriver == rootContext->RefreshDriver(); | |||
| 323 | } | |||
| 324 | ||||
| 325 | /* | |||
| 326 | * Actually runs a tick, poking all the attached RefreshDrivers. | |||
| 327 | * Grabs the "now" time via TimeStamp::Now(). | |||
| 328 | */ | |||
| 329 | void Tick() { | |||
| 330 | TimeStamp now = TimeStamp::Now(); | |||
| 331 | Tick(VsyncId(), now); | |||
| 332 | } | |||
| 333 | ||||
| 334 | void TickRefreshDrivers(VsyncId aId, TimeStamp aNow, | |||
| 335 | nsTArray<RefPtr<nsRefreshDriver>>& aDrivers) { | |||
| 336 | if (aDrivers.IsEmpty()) { | |||
| 337 | return; | |||
| 338 | } | |||
| 339 | ||||
| 340 | for (nsRefreshDriver* driver : aDrivers.Clone()) { | |||
| 341 | // don't poke this driver if it's in test mode | |||
| 342 | if (driver->IsTestControllingRefreshesEnabled()) { | |||
| 343 | continue; | |||
| 344 | } | |||
| 345 | ||||
| 346 | TickDriver(driver, aId, aNow); | |||
| 347 | } | |||
| 348 | } | |||
| 349 | ||||
| 350 | /* | |||
| 351 | * Tick the refresh drivers based on the given timestamp. | |||
| 352 | */ | |||
| 353 | void Tick(VsyncId aId, TimeStamp now) { | |||
| 354 | ScheduleNextTick(now); | |||
| 355 | ||||
| 356 | mLastFireTime = now; | |||
| 357 | mLastFireId = aId; | |||
| 358 | ||||
| 359 | LOG("[%p] ticking drivers...", this); | |||
| 360 | ||||
| 361 | TickRefreshDrivers(aId, now, mContentRefreshDrivers); | |||
| 362 | TickRefreshDrivers(aId, now, mRootRefreshDrivers); | |||
| 363 | ||||
| 364 | LOG("[%p] done.", this); | |||
| 365 | } | |||
| 366 | ||||
| 367 | static void TickDriver(nsRefreshDriver* driver, VsyncId aId, TimeStamp now) { | |||
| 368 | driver->Tick(aId, now); | |||
| 369 | } | |||
| 370 | ||||
| 371 | TimeStamp mLastFireTime; | |||
| 372 | VsyncId mLastFireId; | |||
| 373 | TimeStamp mTargetTime; | |||
| 374 | ||||
| 375 | nsTArray<RefPtr<nsRefreshDriver>> mContentRefreshDrivers; | |||
| 376 | nsTArray<RefPtr<nsRefreshDriver>> mRootRefreshDrivers; | |||
| 377 | ||||
| 378 | // useful callback for nsITimer-based derived classes, here | |||
| 379 | // because of c++ protected shenanigans | |||
| 380 | static void TimerTick(nsITimer* aTimer, void* aClosure) { | |||
| 381 | RefPtr<RefreshDriverTimer> timer = | |||
| 382 | static_cast<RefreshDriverTimer*>(aClosure); | |||
| 383 | timer->Tick(); | |||
| 384 | } | |||
| 385 | }; | |||
| 386 | ||||
| 387 | /* | |||
| 388 | * A RefreshDriverTimer that uses a nsITimer as the underlying timer. Note that | |||
| 389 | * this is a ONE_SHOT timer, not a repeating one! Subclasses are expected to | |||
| 390 | * implement ScheduleNextTick and intelligently calculate the next time to tick, | |||
| 391 | * and to reset mTimer. Using a repeating nsITimer gets us into a lot of pain | |||
| 392 | * with its attempt at intelligent slack removal and such, so we don't do it. | |||
| 393 | */ | |||
| 394 | class SimpleTimerBasedRefreshDriverTimer : public RefreshDriverTimer { | |||
| 395 | public: | |||
| 396 | /* | |||
| 397 | * aRate -- the delay, in milliseconds, requested between timer firings | |||
| 398 | */ | |||
| 399 | explicit SimpleTimerBasedRefreshDriverTimer(double aRate) { | |||
| 400 | SetRate(aRate); | |||
| 401 | mTimer = NS_NewTimer(); | |||
| 402 | } | |||
| 403 | ||||
| 404 | virtual ~SimpleTimerBasedRefreshDriverTimer() override { StopTimer(); } | |||
| 405 | ||||
| 406 | // will take effect at next timer tick | |||
| 407 | virtual void SetRate(double aNewRate) { | |||
| 408 | mRateMilliseconds = aNewRate; | |||
| 409 | mRateDuration = TimeDuration::FromMilliseconds(mRateMilliseconds); | |||
| 410 | } | |||
| 411 | ||||
| 412 | double GetRate() const { return mRateMilliseconds; } | |||
| 413 | ||||
| 414 | TimeDuration GetTimerRate() override { return mRateDuration; } | |||
| 415 | ||||
| 416 | protected: | |||
| 417 | void StartTimer() override { | |||
| 418 | // pretend we just fired, and we schedule the next tick normally | |||
| 419 | mLastFireTime = TimeStamp::Now(); | |||
| 420 | mLastFireId = VsyncId(); | |||
| 421 | ||||
| 422 | mTargetTime = mLastFireTime + mRateDuration; | |||
| 423 | ||||
| 424 | uint32_t delay = static_cast<uint32_t>(mRateMilliseconds); | |||
| 425 | mTimer->InitWithNamedFuncCallback( | |||
| 426 | TimerTick, this, delay, nsITimer::TYPE_ONE_SHOT, | |||
| 427 | "SimpleTimerBasedRefreshDriverTimer::StartTimer"); | |||
| 428 | } | |||
| 429 | ||||
| 430 | void StopTimer() override { mTimer->Cancel(); } | |||
| 431 | ||||
| 432 | double mRateMilliseconds; | |||
| 433 | TimeDuration mRateDuration; | |||
| 434 | RefPtr<nsITimer> mTimer; | |||
| 435 | }; | |||
| 436 | ||||
| 437 | /* | |||
| 438 | * A refresh driver that listens to vsync events and ticks the refresh driver | |||
| 439 | * on vsync intervals. We throttle the refresh driver if we get too many | |||
| 440 | * vsync events and wait to catch up again. | |||
| 441 | */ | |||
| 442 | class VsyncRefreshDriverTimer : public RefreshDriverTimer { | |||
| 443 | public: | |||
| 444 | // This is used in the parent process for all platforms except Linux Wayland. | |||
| 445 | static RefPtr<VsyncRefreshDriverTimer> | |||
| 446 | CreateForParentProcessWithGlobalVsync() { | |||
| 447 | MOZ_RELEASE_ASSERT(XRE_IsParentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsParentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsParentProcess()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsParentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 447); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 447; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 448 | MOZ_RELEASE_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 448); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 448; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 449 | RefPtr<VsyncDispatcher> vsyncDispatcher = | |||
| 450 | gfxPlatform::GetPlatform()->GetGlobalVsyncDispatcher(); | |||
| 451 | RefPtr<VsyncRefreshDriverTimer> timer = | |||
| 452 | new VsyncRefreshDriverTimer(std::move(vsyncDispatcher), nullptr); | |||
| 453 | return timer.forget(); | |||
| 454 | } | |||
| 455 | ||||
| 456 | // This is used in the parent process for Linux Wayland only, where we have a | |||
| 457 | // per-widget VsyncSource which is independent from the gfxPlatform's global | |||
| 458 | // VsyncSource. | |||
| 459 | static RefPtr<VsyncRefreshDriverTimer> | |||
| 460 | CreateForParentProcessWithLocalVsyncDispatcher( | |||
| 461 | RefPtr<VsyncDispatcher>&& aVsyncDispatcher) { | |||
| 462 | MOZ_RELEASE_ASSERT(XRE_IsParentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsParentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsParentProcess()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsParentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 462); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 462; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 463 | MOZ_RELEASE_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 463); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 463; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 464 | RefPtr<VsyncRefreshDriverTimer> timer = | |||
| 465 | new VsyncRefreshDriverTimer(std::move(aVsyncDispatcher), nullptr); | |||
| 466 | return timer.forget(); | |||
| 467 | } | |||
| 468 | ||||
| 469 | // This is used in the content process. | |||
| 470 | static RefPtr<VsyncRefreshDriverTimer> CreateForContentProcess( | |||
| 471 | RefPtr<VsyncMainChild>&& aVsyncChild) { | |||
| 472 | MOZ_RELEASE_ASSERT(XRE_IsContentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsContentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsContentProcess()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsContentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 472); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "XRE_IsContentProcess()" ")"); do { *((volatile int*)__null) = 472; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 473 | MOZ_RELEASE_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 473); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 473; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 474 | RefPtr<VsyncRefreshDriverTimer> timer = | |||
| 475 | new VsyncRefreshDriverTimer(nullptr, std::move(aVsyncChild)); | |||
| 476 | return timer.forget(); | |||
| 477 | } | |||
| 478 | ||||
| 479 | TimeDuration GetTimerRate() override { | |||
| 480 | if (mVsyncDispatcher) { | |||
| 481 | mVsyncRate = mVsyncDispatcher->GetVsyncRate(); | |||
| 482 | } else if (mVsyncChild) { | |||
| 483 | mVsyncRate = mVsyncChild->GetVsyncRate(); | |||
| 484 | } | |||
| 485 | ||||
| 486 | // If hardware queries fail / are unsupported, we have to just guess. | |||
| 487 | return mVsyncRate != TimeDuration::Forever() | |||
| 488 | ? mVsyncRate | |||
| 489 | : TimeDuration::FromMilliseconds(1000.0 / 60.0); | |||
| 490 | } | |||
| 491 | ||||
| 492 | bool IsBlocked() override { | |||
| 493 | return !mSuspendVsyncPriorityTicksUntil.IsNull() && | |||
| 494 | mSuspendVsyncPriorityTicksUntil > TimeStamp::Now() && | |||
| 495 | ShouldGiveNonVsyncTasksMoreTime(); | |||
| 496 | } | |||
| 497 | ||||
| 498 | private: | |||
| 499 | // RefreshDriverVsyncObserver redirects vsync notifications to the main thread | |||
| 500 | // and calls VsyncRefreshDriverTimer::NotifyVsyncOnMainThread on it. It also | |||
| 501 | // acts as a weak reference to the refresh driver timer, dropping its | |||
| 502 | // reference when RefreshDriverVsyncObserver::Shutdown is called from the | |||
| 503 | // timer's destructor. | |||
| 504 | // | |||
| 505 | // RefreshDriverVsyncObserver::NotifyVsync is called from different places | |||
| 506 | // depending on the process type. | |||
| 507 | // | |||
| 508 | // Parent process: | |||
| 509 | // NotifyVsync is called by RefreshDriverVsyncDispatcher, on a background | |||
| 510 | // thread. RefreshDriverVsyncDispatcher keeps strong references to its | |||
| 511 | // VsyncObservers, both in its array of observers and while calling | |||
| 512 | // NotifyVsync. So it might drop its last reference to the observer on a | |||
| 513 | // background thread. This means that the VsyncRefreshDriverTimer itself can't | |||
| 514 | // be the observer (because its destructor would potentially be run on a | |||
| 515 | // background thread), and it's why we use this separate class. | |||
| 516 | // | |||
| 517 | // Child process: | |||
| 518 | // NotifyVsync is called by VsyncMainChild, on the main thread. | |||
| 519 | // VsyncMainChild keeps raw pointers to its observers. | |||
| 520 | class RefreshDriverVsyncObserver final : public VsyncObserver { | |||
| 521 | NS_INLINE_DECL_THREADSAFE_REFCOUNTING(public: MozExternalRefCountType AddRef(void) override { static_assert (!std::is_destructible_v<VsyncRefreshDriverTimer::RefreshDriverVsyncObserver >, "Reference-counted class " "VsyncRefreshDriverTimer::RefreshDriverVsyncObserver" " should not have a public destructor. " "Make this class's destructor non-public" ); do { static_assert( mozilla::detail::AssertionConditionType <decltype(int32_t(mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 522); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 522; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); nsrefcnt count = ++mRefCnt; NS_LogAddRef((this ), (count), ("VsyncRefreshDriverTimer::RefreshDriverVsyncObserver" ), (uint32_t)(sizeof(*this))); return (nsrefcnt)count; } MozExternalRefCountType Release(void) override { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(int32_t(mRefCnt) > 0) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(int32_t(mRefCnt) > 0))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 522); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 522 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); nsrefcnt count = --mRefCnt; NS_LogRelease((this), ( count), ("VsyncRefreshDriverTimer::RefreshDriverVsyncObserver" )); if (count == 0) { delete (this); return 0; } return count ; } using HasThreadSafeRefCnt = std::true_type; protected: :: mozilla::ThreadSafeAutoRefCnt mRefCnt; public: | |||
| 522 | VsyncRefreshDriverTimer::RefreshDriverVsyncObserver, override)public: MozExternalRefCountType AddRef(void) override { static_assert (!std::is_destructible_v<VsyncRefreshDriverTimer::RefreshDriverVsyncObserver >, "Reference-counted class " "VsyncRefreshDriverTimer::RefreshDriverVsyncObserver" " should not have a public destructor. " "Make this class's destructor non-public" ); do { static_assert( mozilla::detail::AssertionConditionType <decltype(int32_t(mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 522); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 522; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); nsrefcnt count = ++mRefCnt; NS_LogAddRef((this ), (count), ("VsyncRefreshDriverTimer::RefreshDriverVsyncObserver" ), (uint32_t)(sizeof(*this))); return (nsrefcnt)count; } MozExternalRefCountType Release(void) override { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(int32_t(mRefCnt) > 0) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(int32_t(mRefCnt) > 0))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 522); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 522 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); nsrefcnt count = --mRefCnt; NS_LogRelease((this), ( count), ("VsyncRefreshDriverTimer::RefreshDriverVsyncObserver" )); if (count == 0) { delete (this); return 0; } return count ; } using HasThreadSafeRefCnt = std::true_type; protected: :: mozilla::ThreadSafeAutoRefCnt mRefCnt; public: | |||
| 523 | ||||
| 524 | public: | |||
| 525 | explicit RefreshDriverVsyncObserver( | |||
| 526 | VsyncRefreshDriverTimer* aVsyncRefreshDriverTimer) | |||
| 527 | : mVsyncRefreshDriverTimer(aVsyncRefreshDriverTimer), | |||
| 528 | mLastPendingVsyncNotification( | |||
| 529 | "RefreshDriverVsyncObserver::mLastPendingVsyncNotification") { | |||
| 530 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 530); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 530; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 531 | } | |||
| 532 | ||||
| 533 | void NotifyVsync(const VsyncEvent& aVsync) override { | |||
| 534 | // Compress vsync notifications such that only 1 may run at a time | |||
| 535 | // This is so that we don't flood the refresh driver with vsync messages | |||
| 536 | // if the main thread is blocked for long periods of time | |||
| 537 | { // scope lock | |||
| 538 | auto pendingVsync = mLastPendingVsyncNotification.Lock(); | |||
| 539 | bool hadPendingVsync = pendingVsync->isSome(); | |||
| 540 | *pendingVsync = Some(aVsync); | |||
| 541 | if (hadPendingVsync) { | |||
| 542 | return; | |||
| 543 | } | |||
| 544 | } | |||
| 545 | ||||
| 546 | if (XRE_IsContentProcess()) { | |||
| 547 | // In the content process, NotifyVsync is called by VsyncMainChild on | |||
| 548 | // the main thread. No need to use a runnable, just call | |||
| 549 | // NotifyVsyncTimerOnMainThread() directly. | |||
| 550 | NotifyVsyncTimerOnMainThread(); | |||
| 551 | return; | |||
| 552 | } | |||
| 553 | ||||
| 554 | // In the parent process, NotifyVsync is called on the vsync thread, which | |||
| 555 | // on most platforms is different from the main thread, so we need to | |||
| 556 | // dispatch a runnable for running NotifyVsyncTimerOnMainThread on the | |||
| 557 | // main thread. | |||
| 558 | // TODO: On Linux Wayland, the vsync thread is currently the main thread, | |||
| 559 | // and yet we still dispatch the runnable. Do we need to? | |||
| 560 | bool useVsyncPriority = mozilla::BrowserTabsRemoteAutostart(); | |||
| 561 | nsCOMPtr<nsIRunnable> vsyncEvent = new PrioritizableRunnable( | |||
| 562 | NS_NewRunnableFunction( | |||
| 563 | "RefreshDriverVsyncObserver::NotifyVsyncTimerOnMainThread", | |||
| 564 | [self = RefPtr{this}]() { | |||
| 565 | self->NotifyVsyncTimerOnMainThread(); | |||
| 566 | }), | |||
| 567 | useVsyncPriority ? nsIRunnablePriority::PRIORITY_VSYNC | |||
| 568 | : nsIRunnablePriority::PRIORITY_NORMAL); | |||
| 569 | NS_DispatchToMainThread(vsyncEvent); | |||
| 570 | } | |||
| 571 | ||||
| 572 | void NotifyVsyncTimerOnMainThread() { | |||
| 573 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 573); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 573; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 574 | ||||
| 575 | if (!mVsyncRefreshDriverTimer) { | |||
| 576 | // Ignore calls after Shutdown. | |||
| 577 | return; | |||
| 578 | } | |||
| 579 | ||||
| 580 | VsyncEvent vsyncEvent; | |||
| 581 | { | |||
| 582 | // Get the last of the queued-up vsync notifications. | |||
| 583 | auto pendingVsync = mLastPendingVsyncNotification.Lock(); | |||
| 584 | MOZ_RELEASE_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(pendingVsync->isSome())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pendingVsync->isSome()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("pendingVsync->isSome()" " (" "We should always have a pending vsync notification here." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 586); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "pendingVsync->isSome()" ") (" "We should always have a pending vsync notification here." ")"); do { *((volatile int*)__null) = 586; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 585 | pendingVsync->isSome(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(pendingVsync->isSome())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pendingVsync->isSome()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("pendingVsync->isSome()" " (" "We should always have a pending vsync notification here." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 586); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "pendingVsync->isSome()" ") (" "We should always have a pending vsync notification here." ")"); do { *((volatile int*)__null) = 586; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 586 | "We should always have a pending vsync notification here.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(pendingVsync->isSome())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pendingVsync->isSome()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("pendingVsync->isSome()" " (" "We should always have a pending vsync notification here." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 586); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "pendingVsync->isSome()" ") (" "We should always have a pending vsync notification here." ")"); do { *((volatile int*)__null) = 586; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 587 | vsyncEvent = pendingVsync->extract(); | |||
| 588 | } | |||
| 589 | ||||
| 590 | // Call VsyncRefreshDriverTimer::NotifyVsyncOnMainThread, and keep a | |||
| 591 | // strong reference to it while calling the method. | |||
| 592 | RefPtr<VsyncRefreshDriverTimer> timer = mVsyncRefreshDriverTimer; | |||
| 593 | timer->NotifyVsyncOnMainThread(vsyncEvent); | |||
| 594 | } | |||
| 595 | ||||
| 596 | void Shutdown() { | |||
| 597 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 597); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 597; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 598 | mVsyncRefreshDriverTimer = nullptr; | |||
| 599 | } | |||
| 600 | ||||
| 601 | private: | |||
| 602 | ~RefreshDriverVsyncObserver() = default; | |||
| 603 | ||||
| 604 | // VsyncRefreshDriverTimer holds this RefreshDriverVsyncObserver and it will | |||
| 605 | // be always available before Shutdown(). We can just use the raw pointer | |||
| 606 | // here. | |||
| 607 | // Only accessed on the main thread. | |||
| 608 | VsyncRefreshDriverTimer* mVsyncRefreshDriverTimer; | |||
| 609 | ||||
| 610 | // Non-empty between a call to NotifyVsync and a call to | |||
| 611 | // NotifyVsyncOnMainThread. When multiple vsync notifications have been | |||
| 612 | // received between those two calls, this contains the last of the pending | |||
| 613 | // notifications. This is used both in the parent process and in the child | |||
| 614 | // process, but it only does something useful in the parent process. In the | |||
| 615 | // child process, both calls happen on the main thread right after one | |||
| 616 | // another, so there's only one notification to keep track of; vsync | |||
| 617 | // notification coalescing for child processes happens at the IPC level | |||
| 618 | // instead. | |||
| 619 | DataMutex<Maybe<VsyncEvent>> mLastPendingVsyncNotification; | |||
| 620 | ||||
| 621 | }; // RefreshDriverVsyncObserver | |||
| 622 | ||||
| 623 | VsyncRefreshDriverTimer(RefPtr<VsyncDispatcher>&& aVsyncDispatcher, | |||
| 624 | RefPtr<VsyncMainChild>&& aVsyncChild) | |||
| 625 | : mVsyncDispatcher(aVsyncDispatcher), | |||
| 626 | mVsyncChild(aVsyncChild), | |||
| 627 | mVsyncRate(TimeDuration::Forever()), | |||
| 628 | mRecentVsync(TimeStamp::Now()), | |||
| 629 | mLastTickStart(TimeStamp::Now()), | |||
| 630 | mLastIdleTaskCount(0), | |||
| 631 | mLastRunOutOfMTTasksCount(0), | |||
| 632 | mProcessedVsync(true), | |||
| 633 | mHasPendingLowPrioTask(false) { | |||
| 634 | mVsyncObserver = new RefreshDriverVsyncObserver(this); | |||
| 635 | } | |||
| 636 | ||||
| 637 | ~VsyncRefreshDriverTimer() override { | |||
| 638 | if (mVsyncDispatcher) { | |||
| 639 | mVsyncDispatcher->RemoveVsyncObserver(mVsyncObserver); | |||
| 640 | mVsyncDispatcher = nullptr; | |||
| 641 | } else if (mVsyncChild) { | |||
| 642 | mVsyncChild->RemoveChildRefreshTimer(mVsyncObserver); | |||
| 643 | mVsyncChild = nullptr; | |||
| 644 | } | |||
| 645 | ||||
| 646 | // Detach current vsync timer from this VsyncObserver. The observer will no | |||
| 647 | // longer tick this timer. | |||
| 648 | mVsyncObserver->Shutdown(); | |||
| 649 | mVsyncObserver = nullptr; | |||
| 650 | } | |||
| 651 | ||||
| 652 | bool ShouldGiveNonVsyncTasksMoreTime(bool aCheckOnlyNewPendingTasks = false) { | |||
| 653 | TaskController* taskController = TaskController::Get(); | |||
| 654 | IdleTaskManager* idleTaskManager = taskController->GetIdleTaskManager(); | |||
| 655 | VsyncTaskManager* vsyncTaskManager = VsyncTaskManager::Get(); | |||
| 656 | ||||
| 657 | // Note, pendingTaskCount includes also all the pending idle and vsync | |||
| 658 | // tasks. | |||
| 659 | uint64_t pendingTaskCount = | |||
| 660 | taskController->PendingMainthreadTaskCountIncludingSuspended(); | |||
| 661 | uint64_t pendingIdleTaskCount = idleTaskManager->PendingTaskCount(); | |||
| 662 | uint64_t pendingVsyncTaskCount = vsyncTaskManager->PendingTaskCount(); | |||
| 663 | if (!(pendingTaskCount > (pendingIdleTaskCount + pendingVsyncTaskCount))) { | |||
| 664 | return false; | |||
| 665 | } | |||
| 666 | if (aCheckOnlyNewPendingTasks) { | |||
| 667 | return true; | |||
| 668 | } | |||
| 669 | ||||
| 670 | uint64_t idleTaskCount = idleTaskManager->ProcessedTaskCount(); | |||
| 671 | ||||
| 672 | // If we haven't processed new idle tasks and we have pending | |||
| 673 | // non-idle tasks, give those non-idle tasks more time, | |||
| 674 | // but only if the main thread wasn't totally empty at some point. | |||
| 675 | // In the parent process RunOutOfMTTasksCount() is less meaningful | |||
| 676 | // because some of the tasks run through AppShell. | |||
| 677 | return mLastIdleTaskCount == idleTaskCount && | |||
| 678 | (taskController->RunOutOfMTTasksCount() == | |||
| 679 | mLastRunOutOfMTTasksCount || | |||
| 680 | XRE_IsParentProcess()); | |||
| 681 | } | |||
| 682 | ||||
| 683 | void NotifyVsyncOnMainThread(const VsyncEvent& aVsyncEvent) { | |||
| 684 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 684); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 684; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 685 | ||||
| 686 | mRecentVsync = aVsyncEvent.mTime; | |||
| 687 | mRecentVsyncId = aVsyncEvent.mId; | |||
| 688 | if (!mSuspendVsyncPriorityTicksUntil.IsNull() && | |||
| 689 | mSuspendVsyncPriorityTicksUntil > TimeStamp::Now()) { | |||
| 690 | if (ShouldGiveNonVsyncTasksMoreTime()) { | |||
| 691 | if (!IsAnyToplevelContentPageLoading()) { | |||
| 692 | // If pages aren't loading and there aren't other tasks to run, | |||
| 693 | // trigger the pending vsync notification. | |||
| 694 | mPendingVsync = mRecentVsync; | |||
| 695 | mPendingVsyncId = mRecentVsyncId; | |||
| 696 | if (!mHasPendingLowPrioTask) { | |||
| 697 | mHasPendingLowPrioTask = true; | |||
| 698 | NS_DispatchToMainThreadQueue( | |||
| 699 | NS_NewRunnableFunction( | |||
| 700 | "NotifyVsyncOnMainThread[low priority]", | |||
| 701 | [self = RefPtr{this}]() { | |||
| 702 | self->mHasPendingLowPrioTask = false; | |||
| 703 | if (self->mRecentVsync == self->mPendingVsync && | |||
| 704 | self->mRecentVsyncId == self->mPendingVsyncId && | |||
| 705 | !self->ShouldGiveNonVsyncTasksMoreTime()) { | |||
| 706 | self->mSuspendVsyncPriorityTicksUntil = TimeStamp(); | |||
| 707 | self->NotifyVsyncOnMainThread({self->mPendingVsyncId, | |||
| 708 | self->mPendingVsync, | |||
| 709 | /* unused */ | |||
| 710 | TimeStamp()}); | |||
| 711 | } | |||
| 712 | }), | |||
| 713 | EventQueuePriority::Low); | |||
| 714 | } | |||
| 715 | } | |||
| 716 | return; | |||
| 717 | } | |||
| 718 | ||||
| 719 | // Clear the value since we aren't blocking anymore because there aren't | |||
| 720 | // any non-idle tasks to process. | |||
| 721 | mSuspendVsyncPriorityTicksUntil = TimeStamp(); | |||
| 722 | } | |||
| 723 | ||||
| 724 | if (StaticPrefs::layout_lower_priority_refresh_driver_during_load() && | |||
| 725 | ShouldGiveNonVsyncTasksMoreTime()) { | |||
| 726 | nsPresContext* pctx = GetPresContextForOnlyRefreshDriver(); | |||
| 727 | if (pctx && pctx->HadFirstContentfulPaint() && pctx->Document() && | |||
| 728 | pctx->Document()->GetReadyStateEnum() < | |||
| 729 | Document::READYSTATE_COMPLETE) { | |||
| 730 | nsPIDOMWindowInner* win = pctx->Document()->GetInnerWindow(); | |||
| 731 | uint32_t frameRateMultiplier = pctx->GetNextFrameRateMultiplier(); | |||
| 732 | if (!frameRateMultiplier) { | |||
| 733 | pctx->DidUseFrameRateMultiplier(); | |||
| 734 | } | |||
| 735 | if (win && frameRateMultiplier) { | |||
| 736 | dom::Performance* perf = win->GetPerformance(); | |||
| 737 | // Limit slower refresh rate to 5 seconds between the | |||
| 738 | // first contentful paint and page load. | |||
| 739 | if (perf && | |||
| 740 | perf->Now() < StaticPrefs::page_load_deprioritization_period()) { | |||
| 741 | if (mProcessedVsync) { | |||
| 742 | mProcessedVsync = false; | |||
| 743 | TimeDuration rate = GetTimerRate(); | |||
| 744 | uint32_t slowRate = static_cast<uint32_t>(rate.ToMilliseconds() * | |||
| 745 | frameRateMultiplier); | |||
| 746 | pctx->DidUseFrameRateMultiplier(); | |||
| 747 | nsCOMPtr<nsIRunnable> vsyncEvent = NewRunnableMethod<>( | |||
| 748 | "VsyncRefreshDriverTimer::IdlePriorityNotify", this, | |||
| 749 | &VsyncRefreshDriverTimer::IdlePriorityNotify); | |||
| 750 | NS_DispatchToCurrentThreadQueue(vsyncEvent.forget(), slowRate, | |||
| 751 | EventQueuePriority::Idle); | |||
| 752 | } | |||
| 753 | return; | |||
| 754 | } | |||
| 755 | } | |||
| 756 | } | |||
| 757 | } | |||
| 758 | ||||
| 759 | TickRefreshDriver(aVsyncEvent.mId, aVsyncEvent.mTime); | |||
| 760 | } | |||
| 761 | ||||
| 762 | void RecordTelemetryProbes(TimeStamp aVsyncTimestamp) { | |||
| 763 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 763); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 763; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 764 | #ifndef ANDROID /* bug 1142079 */ | |||
| 765 | if (XRE_IsParentProcess()) { | |||
| 766 | TimeDuration vsyncLatency = TimeStamp::Now() - aVsyncTimestamp; | |||
| 767 | uint32_t sample = (uint32_t)vsyncLatency.ToMilliseconds(); | |||
| 768 | Telemetry::Accumulate(Telemetry::FX_REFRESH_DRIVER_CHROME_FRAME_DELAY_MS, | |||
| 769 | sample); | |||
| 770 | } else if (mVsyncRate != TimeDuration::Forever()) { | |||
| 771 | TimeDuration contentDelay = | |||
| 772 | (TimeStamp::Now() - mLastTickStart) - mVsyncRate; | |||
| 773 | if (contentDelay.ToMilliseconds() < 0) { | |||
| 774 | // Vsyncs are noisy and some can come at a rate quicker than | |||
| 775 | // the reported hardware rate. In those cases, consider that we have 0 | |||
| 776 | // delay. | |||
| 777 | contentDelay = TimeDuration::FromMilliseconds(0); | |||
| 778 | } | |||
| 779 | uint32_t sample = (uint32_t)contentDelay.ToMilliseconds(); | |||
| 780 | Telemetry::Accumulate(Telemetry::FX_REFRESH_DRIVER_CONTENT_FRAME_DELAY_MS, | |||
| 781 | sample); | |||
| 782 | } else { | |||
| 783 | // Request the vsync rate which VsyncChild stored the last time it got a | |||
| 784 | // vsync notification. | |||
| 785 | mVsyncRate = mVsyncChild->GetVsyncRate(); | |||
| 786 | } | |||
| 787 | #endif | |||
| 788 | } | |||
| 789 | ||||
| 790 | void OnTimerStart() { | |||
| 791 | mLastTickStart = TimeStamp::Now(); | |||
| 792 | mLastTickEnd = TimeStamp(); | |||
| 793 | mLastIdleTaskCount = 0; | |||
| 794 | } | |||
| 795 | ||||
| 796 | void IdlePriorityNotify() { | |||
| 797 | if (mLastProcessedTick.IsNull() || mRecentVsync > mLastProcessedTick) { | |||
| 798 | // mSuspendVsyncPriorityTicksUntil is for high priority vsync | |||
| 799 | // notifications only. | |||
| 800 | mSuspendVsyncPriorityTicksUntil = TimeStamp(); | |||
| 801 | TickRefreshDriver(mRecentVsyncId, mRecentVsync); | |||
| 802 | } | |||
| 803 | ||||
| 804 | mProcessedVsync = true; | |||
| 805 | } | |||
| 806 | ||||
| 807 | hal::PerformanceHintSession* GetPerformanceHintSession() { | |||
| 808 | // The ContentChild creates/destroys the PerformanceHintSession in response | |||
| 809 | // to the process' priority being foregrounded/backgrounded. We can only use | |||
| 810 | // this session when using a single vsync source for the process, otherwise | |||
| 811 | // these threads may be performing work for multiple | |||
| 812 | // VsyncRefreshDriverTimers and we will misreport the work duration. | |||
| 813 | const ContentChild* contentChild = ContentChild::GetSingleton(); | |||
| 814 | if (contentChild && mVsyncChild) { | |||
| 815 | return contentChild->PerformanceHintSession(); | |||
| 816 | } | |||
| 817 | ||||
| 818 | return nullptr; | |||
| 819 | } | |||
| 820 | ||||
| 821 | void TickRefreshDriver(VsyncId aId, TimeStamp aVsyncTimestamp) { | |||
| 822 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 822); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 822; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 823 | ||||
| 824 | RecordTelemetryProbes(aVsyncTimestamp); | |||
| 825 | ||||
| 826 | TimeStamp tickStart = TimeStamp::Now(); | |||
| 827 | ||||
| 828 | const TimeDuration previousRate = mVsyncRate; | |||
| 829 | const TimeDuration rate = GetTimerRate(); | |||
| 830 | ||||
| 831 | if (rate != previousRate) { | |||
| 832 | if (auto* const performanceHintSession = GetPerformanceHintSession()) { | |||
| 833 | performanceHintSession->UpdateTargetWorkDuration( | |||
| 834 | ContentChild::GetPerformanceHintTarget(rate)); | |||
| 835 | } | |||
| 836 | } | |||
| 837 | ||||
| 838 | if (TimeDuration::FromMilliseconds(nsRefreshDriver::DefaultInterval()) > | |||
| 839 | rate) { | |||
| 840 | sMostRecentHighRateVsync = tickStart; | |||
| 841 | sMostRecentHighRate = rate; | |||
| 842 | } | |||
| 843 | ||||
| 844 | // On 32-bit Windows we sometimes get times where TimeStamp::Now() is not | |||
| 845 | // monotonic because the underlying system apis produce non-monontonic | |||
| 846 | // results. (bug 1306896) | |||
| 847 | #if !defined(_WIN32) | |||
| 848 | MOZ_ASSERT(aVsyncTimestamp <= tickStart)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aVsyncTimestamp <= tickStart)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aVsyncTimestamp <= tickStart ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aVsyncTimestamp <= tickStart", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 848); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aVsyncTimestamp <= tickStart" ")"); do { *((volatile int*)__null) = 848; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 849 | #endif | |||
| 850 | ||||
| 851 | bool shouldGiveNonVSyncTasksMoreTime = ShouldGiveNonVsyncTasksMoreTime(); | |||
| 852 | ||||
| 853 | // Set these variables before calling RunRefreshDrivers so that they are | |||
| 854 | // visible to any nested ticks. | |||
| 855 | mLastTickStart = tickStart; | |||
| 856 | mLastProcessedTick = aVsyncTimestamp; | |||
| 857 | ||||
| 858 | RunRefreshDrivers(aId, aVsyncTimestamp); | |||
| 859 | ||||
| 860 | TimeStamp tickEnd = TimeStamp::Now(); | |||
| 861 | ||||
| 862 | if (auto* const performanceHintSession = GetPerformanceHintSession()) { | |||
| 863 | performanceHintSession->ReportActualWorkDuration(tickEnd - tickStart); | |||
| 864 | } | |||
| 865 | ||||
| 866 | // Re-read mLastTickStart in case there was a nested tick inside this | |||
| 867 | // tick. | |||
| 868 | TimeStamp mostRecentTickStart = mLastTickStart; | |||
| 869 | ||||
| 870 | // Let also non-RefreshDriver code to run at least for awhile if we have | |||
| 871 | // a mVsyncRefreshDriverTimer. | |||
| 872 | // Always give a tiny bit, 5% of the vsync interval, time outside the | |||
| 873 | // tick | |||
| 874 | // In case there are both normal tasks and RefreshDrivers are doing | |||
| 875 | // work, mSuspendVsyncPriorityTicksUntil will be set to a timestamp in the | |||
| 876 | // future where the period between the previous tick start | |||
| 877 | // (mostRecentTickStart) and the next tick needs to be at least the amount | |||
| 878 | // of work normal tasks and RefreshDrivers did together (minus short grace | |||
| 879 | // period). | |||
| 880 | TimeDuration gracePeriod = rate / int64_t(20); | |||
| 881 | ||||
| 882 | if (shouldGiveNonVSyncTasksMoreTime && !mLastTickEnd.IsNull() && | |||
| 883 | XRE_IsContentProcess() && | |||
| 884 | // For RefreshDriver scheduling during page load there is currently | |||
| 885 | // idle priority based setup. | |||
| 886 | // XXX Consider to remove the page load specific code paths. | |||
| 887 | !IsAnyToplevelContentPageLoading()) { | |||
| 888 | // In case normal tasks are doing lots of work, we still want to paint | |||
| 889 | // every now and then, so only at maximum 4 * rate of work is counted | |||
| 890 | // here. | |||
| 891 | // If we're giving extra time for tasks outside a tick, try to | |||
| 892 | // ensure the next vsync after that period is handled, so subtract | |||
| 893 | // a grace period. | |||
| 894 | TimeDuration timeForOutsideTick = std::clamp( | |||
| 895 | tickStart - mLastTickEnd - gracePeriod, gracePeriod, rate * 4); | |||
| 896 | mSuspendVsyncPriorityTicksUntil = tickEnd + timeForOutsideTick; | |||
| 897 | } else if (ShouldGiveNonVsyncTasksMoreTime(true)) { | |||
| 898 | // We've got some new tasks, give them some extra time. | |||
| 899 | // This handles also the case when mLastTickEnd.IsNull() above and we | |||
| 900 | // should give some more time for non-vsync tasks. | |||
| 901 | mSuspendVsyncPriorityTicksUntil = tickEnd + gracePeriod; | |||
| 902 | } else { | |||
| 903 | mSuspendVsyncPriorityTicksUntil = mostRecentTickStart + gracePeriod; | |||
| 904 | } | |||
| 905 | ||||
| 906 | mLastIdleTaskCount = | |||
| 907 | TaskController::Get()->GetIdleTaskManager()->ProcessedTaskCount(); | |||
| 908 | mLastRunOutOfMTTasksCount = TaskController::Get()->RunOutOfMTTasksCount(); | |||
| 909 | mLastTickEnd = tickEnd; | |||
| 910 | } | |||
| 911 | ||||
| 912 | void StartTimer() override { | |||
| 913 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 913); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 913; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 914 | ||||
| 915 | mLastFireTime = TimeStamp::Now(); | |||
| 916 | mLastFireId = VsyncId(); | |||
| 917 | ||||
| 918 | if (mVsyncDispatcher) { | |||
| 919 | mVsyncDispatcher->AddVsyncObserver(mVsyncObserver); | |||
| 920 | } else if (mVsyncChild) { | |||
| 921 | mVsyncChild->AddChildRefreshTimer(mVsyncObserver); | |||
| 922 | OnTimerStart(); | |||
| 923 | } | |||
| 924 | mIsTicking = true; | |||
| 925 | } | |||
| 926 | ||||
| 927 | void StopTimer() override { | |||
| 928 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 928); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 928; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 929 | ||||
| 930 | if (mVsyncDispatcher) { | |||
| 931 | mVsyncDispatcher->RemoveVsyncObserver(mVsyncObserver); | |||
| 932 | } else if (mVsyncChild) { | |||
| 933 | mVsyncChild->RemoveChildRefreshTimer(mVsyncObserver); | |||
| 934 | } | |||
| 935 | mIsTicking = false; | |||
| 936 | } | |||
| 937 | ||||
| 938 | public: | |||
| 939 | bool IsTicking() const override { return mIsTicking; } | |||
| 940 | ||||
| 941 | protected: | |||
| 942 | void ScheduleNextTick(TimeStamp aNowTime) override { | |||
| 943 | // Do nothing since we just wait for the next vsync from | |||
| 944 | // RefreshDriverVsyncObserver. | |||
| 945 | } | |||
| 946 | ||||
| 947 | void RunRefreshDrivers(VsyncId aId, TimeStamp aTimeStamp) { | |||
| 948 | Tick(aId, aTimeStamp); | |||
| 949 | for (auto& driver : mContentRefreshDrivers) { | |||
| 950 | driver->FinishedVsyncTick(); | |||
| 951 | } | |||
| 952 | for (auto& driver : mRootRefreshDrivers) { | |||
| 953 | driver->FinishedVsyncTick(); | |||
| 954 | } | |||
| 955 | } | |||
| 956 | ||||
| 957 | // Always non-null. Has a weak pointer to us and notifies us of vsync. | |||
| 958 | RefPtr<RefreshDriverVsyncObserver> mVsyncObserver; | |||
| 959 | ||||
| 960 | // Used in the parent process. We register mVsyncObserver with it for the | |||
| 961 | // duration during which we want to receive vsync notifications. We also | |||
| 962 | // use it to query the current vsync rate. | |||
| 963 | RefPtr<VsyncDispatcher> mVsyncDispatcher; | |||
| 964 | // Used it the content process. We register mVsyncObserver with it for the | |||
| 965 | // duration during which we want to receive vsync notifications. The | |||
| 966 | // mVsyncChild will be always available before VsyncChild::ActorDestroy(). | |||
| 967 | // After ActorDestroy(), StartTimer() and StopTimer() calls will be non-op. | |||
| 968 | RefPtr<VsyncMainChild> mVsyncChild; | |||
| 969 | ||||
| 970 | TimeDuration mVsyncRate; | |||
| 971 | bool mIsTicking = false; | |||
| 972 | ||||
| 973 | TimeStamp mRecentVsync; | |||
| 974 | VsyncId mRecentVsyncId; | |||
| 975 | // The local start time when RefreshDrivers' Tick was called last time. | |||
| 976 | TimeStamp mLastTickStart; | |||
| 977 | // The local end time of the last RefreshDrivers' tick. | |||
| 978 | TimeStamp mLastTickEnd; | |||
| 979 | // The number of idle tasks the main thread has processed. It is updated | |||
| 980 | // right after RefreshDrivers' tick. | |||
| 981 | uint64_t mLastIdleTaskCount; | |||
| 982 | // If there were no idle tasks, we need to check if the main event queue | |||
| 983 | // was totally empty at times. | |||
| 984 | uint64_t mLastRunOutOfMTTasksCount; | |||
| 985 | // Note, mLastProcessedTick stores the vsync timestamp, which may be coming | |||
| 986 | // from a different process. | |||
| 987 | TimeStamp mLastProcessedTick; | |||
| 988 | // mSuspendVsyncPriorityTicksUntil is used to block too high refresh rate in | |||
| 989 | // case the main thread has also other non-idle tasks to process. | |||
| 990 | // The timestamp is effectively mLastTickEnd + some duration. | |||
| 991 | TimeStamp mSuspendVsyncPriorityTicksUntil; | |||
| 992 | bool mProcessedVsync; | |||
| 993 | ||||
| 994 | TimeStamp mPendingVsync; | |||
| 995 | VsyncId mPendingVsyncId; | |||
| 996 | bool mHasPendingLowPrioTask; | |||
| 997 | }; // VsyncRefreshDriverTimer | |||
| 998 | ||||
| 999 | /** | |||
| 1000 | * Since the content process takes some time to setup | |||
| 1001 | * the vsync IPC connection, this timer is used | |||
| 1002 | * during the intial startup process. | |||
| 1003 | * During initial startup, the refresh drivers | |||
| 1004 | * are ticked off this timer, and are swapped out once content | |||
| 1005 | * vsync IPC connection is established. | |||
| 1006 | */ | |||
| 1007 | class StartupRefreshDriverTimer : public SimpleTimerBasedRefreshDriverTimer { | |||
| 1008 | public: | |||
| 1009 | explicit StartupRefreshDriverTimer(double aRate) | |||
| 1010 | : SimpleTimerBasedRefreshDriverTimer(aRate) {} | |||
| 1011 | ||||
| 1012 | protected: | |||
| 1013 | void ScheduleNextTick(TimeStamp aNowTime) override { | |||
| 1014 | // Since this is only used for startup, it isn't super critical | |||
| 1015 | // that we tick at consistent intervals. | |||
| 1016 | TimeStamp newTarget = aNowTime + mRateDuration; | |||
| 1017 | uint32_t delay = | |||
| 1018 | static_cast<uint32_t>((newTarget - aNowTime).ToMilliseconds()); | |||
| 1019 | mTimer->InitWithNamedFuncCallback( | |||
| 1020 | TimerTick, this, delay, nsITimer::TYPE_ONE_SHOT, | |||
| 1021 | "StartupRefreshDriverTimer::ScheduleNextTick"); | |||
| 1022 | mTargetTime = newTarget; | |||
| 1023 | } | |||
| 1024 | ||||
| 1025 | public: | |||
| 1026 | bool IsTicking() const override { return true; } | |||
| 1027 | }; | |||
| 1028 | ||||
| 1029 | /* | |||
| 1030 | * A RefreshDriverTimer for inactive documents. When a new refresh driver is | |||
| 1031 | * added, the rate is reset to the base (normally 1s/1fps). Every time | |||
| 1032 | * it ticks, a single refresh driver is poked. Once they have all been poked, | |||
| 1033 | * the duration between ticks doubles, up to mDisableAfterMilliseconds. At that | |||
| 1034 | * point, the timer is quiet and doesn't tick (until something is added to it | |||
| 1035 | * again). | |||
| 1036 | * | |||
| 1037 | * When a timer is removed, there is a possibility of another timer | |||
| 1038 | * being skipped for one cycle. We could avoid this by adjusting | |||
| 1039 | * mNextDriverIndex in RemoveRefreshDriver, but there's little need to | |||
| 1040 | * add that complexity. All we want is for inactive drivers to tick | |||
| 1041 | * at some point, but we don't care too much about how often. | |||
| 1042 | */ | |||
| 1043 | class InactiveRefreshDriverTimer final | |||
| 1044 | : public SimpleTimerBasedRefreshDriverTimer { | |||
| 1045 | public: | |||
| 1046 | explicit InactiveRefreshDriverTimer(double aRate) | |||
| 1047 | : SimpleTimerBasedRefreshDriverTimer(aRate), | |||
| 1048 | mNextTickDuration(aRate), | |||
| 1049 | mDisableAfterMilliseconds(-1.0), | |||
| 1050 | mNextDriverIndex(0) {} | |||
| 1051 | ||||
| 1052 | InactiveRefreshDriverTimer(double aRate, double aDisableAfterMilliseconds) | |||
| 1053 | : SimpleTimerBasedRefreshDriverTimer(aRate), | |||
| 1054 | mNextTickDuration(aRate), | |||
| 1055 | mDisableAfterMilliseconds(aDisableAfterMilliseconds), | |||
| 1056 | mNextDriverIndex(0) {} | |||
| 1057 | ||||
| 1058 | void AddRefreshDriver(nsRefreshDriver* aDriver) override { | |||
| 1059 | RefreshDriverTimer::AddRefreshDriver(aDriver); | |||
| 1060 | ||||
| 1061 | LOG("[%p] inactive timer got new refresh driver %p, resetting rate", this, | |||
| 1062 | aDriver); | |||
| 1063 | ||||
| 1064 | // reset the timer, and start with the newly added one next time. | |||
| 1065 | mNextTickDuration = mRateMilliseconds; | |||
| 1066 | ||||
| 1067 | // we don't really have to start with the newly added one, but we may as | |||
| 1068 | // well not tick the old ones at the fastest rate any more than we need to. | |||
| 1069 | mNextDriverIndex = GetRefreshDriverCount() - 1; | |||
| 1070 | ||||
| 1071 | StopTimer(); | |||
| 1072 | StartTimer(); | |||
| 1073 | } | |||
| 1074 | ||||
| 1075 | TimeDuration GetTimerRate() override { | |||
| 1076 | return TimeDuration::FromMilliseconds(mNextTickDuration); | |||
| 1077 | } | |||
| 1078 | ||||
| 1079 | protected: | |||
| 1080 | uint32_t GetRefreshDriverCount() { | |||
| 1081 | return mContentRefreshDrivers.Length() + mRootRefreshDrivers.Length(); | |||
| 1082 | } | |||
| 1083 | ||||
| 1084 | void StartTimer() override { | |||
| 1085 | mLastFireTime = TimeStamp::Now(); | |||
| 1086 | mLastFireId = VsyncId(); | |||
| 1087 | ||||
| 1088 | mTargetTime = mLastFireTime + mRateDuration; | |||
| 1089 | ||||
| 1090 | uint32_t delay = static_cast<uint32_t>(mRateMilliseconds); | |||
| 1091 | mTimer->InitWithNamedFuncCallback(TimerTickOne, this, delay, | |||
| 1092 | nsITimer::TYPE_ONE_SHOT, | |||
| 1093 | "InactiveRefreshDriverTimer::StartTimer"); | |||
| 1094 | mIsTicking = true; | |||
| 1095 | } | |||
| 1096 | ||||
| 1097 | void StopTimer() override { | |||
| 1098 | mTimer->Cancel(); | |||
| 1099 | mIsTicking = false; | |||
| 1100 | } | |||
| 1101 | ||||
| 1102 | void ScheduleNextTick(TimeStamp aNowTime) override { | |||
| 1103 | if (mDisableAfterMilliseconds > 0.0 && | |||
| 1104 | mNextTickDuration > mDisableAfterMilliseconds) { | |||
| 1105 | // We hit the time after which we should disable | |||
| 1106 | // inactive window refreshes; don't schedule anything | |||
| 1107 | // until we get kicked by an AddRefreshDriver call. | |||
| 1108 | return; | |||
| 1109 | } | |||
| 1110 | ||||
| 1111 | // double the next tick time if we've already gone through all of them once | |||
| 1112 | if (mNextDriverIndex >= GetRefreshDriverCount()) { | |||
| 1113 | mNextTickDuration *= 2.0; | |||
| 1114 | mNextDriverIndex = 0; | |||
| 1115 | } | |||
| 1116 | ||||
| 1117 | // this doesn't need to be precise; do a simple schedule | |||
| 1118 | uint32_t delay = static_cast<uint32_t>(mNextTickDuration); | |||
| 1119 | mTimer->InitWithNamedFuncCallback( | |||
| 1120 | TimerTickOne, this, delay, nsITimer::TYPE_ONE_SHOT, | |||
| 1121 | "InactiveRefreshDriverTimer::ScheduleNextTick"); | |||
| 1122 | ||||
| 1123 | LOG("[%p] inactive timer next tick in %f ms [index %d/%d]", this, | |||
| 1124 | mNextTickDuration, mNextDriverIndex, GetRefreshDriverCount()); | |||
| 1125 | } | |||
| 1126 | ||||
| 1127 | public: | |||
| 1128 | bool IsTicking() const override { return mIsTicking; } | |||
| 1129 | ||||
| 1130 | protected: | |||
| 1131 | /* Runs just one driver's tick. */ | |||
| 1132 | void TickOne() { | |||
| 1133 | TimeStamp now = TimeStamp::Now(); | |||
| 1134 | ||||
| 1135 | ScheduleNextTick(now); | |||
| 1136 | ||||
| 1137 | mLastFireTime = now; | |||
| 1138 | mLastFireId = VsyncId(); | |||
| 1139 | ||||
| 1140 | nsTArray<RefPtr<nsRefreshDriver>> drivers(mContentRefreshDrivers.Clone()); | |||
| 1141 | drivers.AppendElements(mRootRefreshDrivers); | |||
| 1142 | size_t index = mNextDriverIndex; | |||
| 1143 | ||||
| 1144 | if (index < drivers.Length() && | |||
| 1145 | !drivers[index]->IsTestControllingRefreshesEnabled()) { | |||
| 1146 | TickDriver(drivers[index], VsyncId(), now); | |||
| 1147 | } | |||
| 1148 | ||||
| 1149 | mNextDriverIndex++; | |||
| 1150 | } | |||
| 1151 | ||||
| 1152 | static void TimerTickOne(nsITimer* aTimer, void* aClosure) { | |||
| 1153 | RefPtr<InactiveRefreshDriverTimer> timer = | |||
| 1154 | static_cast<InactiveRefreshDriverTimer*>(aClosure); | |||
| 1155 | timer->TickOne(); | |||
| 1156 | } | |||
| 1157 | ||||
| 1158 | double mNextTickDuration; | |||
| 1159 | double mDisableAfterMilliseconds; | |||
| 1160 | uint32_t mNextDriverIndex; | |||
| 1161 | bool mIsTicking = false; | |||
| 1162 | }; | |||
| 1163 | ||||
| 1164 | } // namespace mozilla | |||
| 1165 | ||||
| 1166 | static StaticRefPtr<RefreshDriverTimer> sRegularRateTimer; | |||
| 1167 | static StaticAutoPtr<nsTArray<RefreshDriverTimer*>> sRegularRateTimerList; | |||
| 1168 | static StaticRefPtr<InactiveRefreshDriverTimer> sThrottledRateTimer; | |||
| 1169 | ||||
| 1170 | void nsRefreshDriver::CreateVsyncRefreshTimer() { | |||
| 1171 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1171); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 1171; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1172 | ||||
| 1173 | if (gfxPlatform::IsInLayoutAsapMode()) { | |||
| 1174 | return; | |||
| 1175 | } | |||
| 1176 | ||||
| 1177 | if (!mOwnTimer) { | |||
| 1178 | // If available, we fetch the widget-specific vsync source. | |||
| 1179 | nsPresContext* pc = GetPresContext(); | |||
| 1180 | nsCOMPtr<nsIWidget> widget = pc->GetRootWidget(); | |||
| 1181 | if (widget) { | |||
| 1182 | if (RefPtr<VsyncDispatcher> vsyncDispatcher = | |||
| 1183 | widget->GetVsyncDispatcher()) { | |||
| 1184 | mOwnTimer = VsyncRefreshDriverTimer:: | |||
| 1185 | CreateForParentProcessWithLocalVsyncDispatcher( | |||
| 1186 | std::move(vsyncDispatcher)); | |||
| 1187 | sRegularRateTimerList->AppendElement(mOwnTimer.get()); | |||
| 1188 | return; | |||
| 1189 | } | |||
| 1190 | if (BrowserChild* browserChild = widget->GetOwningBrowserChild()) { | |||
| 1191 | if (RefPtr<VsyncMainChild> vsyncChildViaPBrowser = | |||
| 1192 | browserChild->GetVsyncChild()) { | |||
| 1193 | mOwnTimer = VsyncRefreshDriverTimer::CreateForContentProcess( | |||
| 1194 | std::move(vsyncChildViaPBrowser)); | |||
| 1195 | sRegularRateTimerList->AppendElement(mOwnTimer.get()); | |||
| 1196 | return; | |||
| 1197 | } | |||
| 1198 | } | |||
| 1199 | } | |||
| 1200 | } | |||
| 1201 | if (!sRegularRateTimer) { | |||
| 1202 | if (XRE_IsParentProcess()) { | |||
| 1203 | // Make sure all vsync systems are ready. | |||
| 1204 | gfxPlatform::GetPlatform(); | |||
| 1205 | // In parent process, we can create the VsyncRefreshDriverTimer directly. | |||
| 1206 | sRegularRateTimer = | |||
| 1207 | VsyncRefreshDriverTimer::CreateForParentProcessWithGlobalVsync(); | |||
| 1208 | } else { | |||
| 1209 | PBackgroundChild* actorChild = | |||
| 1210 | BackgroundChild::GetOrCreateForCurrentThread(); | |||
| 1211 | if (NS_WARN_IF(!actorChild)NS_warn_if_impl(!actorChild, "!actorChild", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1211)) { | |||
| 1212 | return; | |||
| 1213 | } | |||
| 1214 | ||||
| 1215 | auto vsyncChildViaPBackground = MakeRefPtr<dom::VsyncMainChild>(); | |||
| 1216 | dom::PVsyncChild* actor = | |||
| 1217 | actorChild->SendPVsyncConstructor(vsyncChildViaPBackground); | |||
| 1218 | if (NS_WARN_IF(!actor)NS_warn_if_impl(!actor, "!actor", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1218)) { | |||
| 1219 | return; | |||
| 1220 | } | |||
| 1221 | ||||
| 1222 | RefPtr<RefreshDriverTimer> vsyncRefreshDriverTimer = | |||
| 1223 | VsyncRefreshDriverTimer::CreateForContentProcess( | |||
| 1224 | std::move(vsyncChildViaPBackground)); | |||
| 1225 | ||||
| 1226 | sRegularRateTimer = std::move(vsyncRefreshDriverTimer); | |||
| 1227 | } | |||
| 1228 | } | |||
| 1229 | } | |||
| 1230 | ||||
| 1231 | static uint32_t GetFirstFrameDelay(imgIRequest* req) { | |||
| 1232 | nsCOMPtr<imgIContainer> container; | |||
| 1233 | if (NS_FAILED(req->GetImage(getter_AddRefs(container)))((bool)(__builtin_expect(!!(NS_FAILED_impl(req->GetImage(getter_AddRefs (container)))), 0))) || !container) { | |||
| 1234 | return 0; | |||
| 1235 | } | |||
| 1236 | ||||
| 1237 | // If this image isn't animated, there isn't a first frame delay. | |||
| 1238 | int32_t delay = container->GetFirstFrameDelay(); | |||
| 1239 | if (delay < 0) { | |||
| 1240 | return 0; | |||
| 1241 | } | |||
| 1242 | ||||
| 1243 | return static_cast<uint32_t>(delay); | |||
| 1244 | } | |||
| 1245 | ||||
| 1246 | /* static */ | |||
| 1247 | void nsRefreshDriver::Shutdown() { | |||
| 1248 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1248); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 1248; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1249 | // clean up our timers | |||
| 1250 | sRegularRateTimer = nullptr; | |||
| 1251 | sRegularRateTimerList = nullptr; | |||
| 1252 | sThrottledRateTimer = nullptr; | |||
| 1253 | } | |||
| 1254 | ||||
| 1255 | /* static */ | |||
| 1256 | int32_t nsRefreshDriver::DefaultInterval() { | |||
| 1257 | return NSToIntRound(1000.0 / gfxPlatform::GetDefaultFrameRate()); | |||
| 1258 | } | |||
| 1259 | ||||
| 1260 | /* static */ | |||
| 1261 | double nsRefreshDriver::HighRateMultiplier() { | |||
| 1262 | // We're in high rate mode if we've gotten a fast rate during the last | |||
| 1263 | // DefaultInterval(). | |||
| 1264 | bool inHighRateMode = | |||
| 1265 | !gfxPlatform::IsInLayoutAsapMode() && | |||
| 1266 | StaticPrefs::layout_expose_high_rate_mode_from_refreshdriver() && | |||
| 1267 | !sMostRecentHighRateVsync.IsNull() && | |||
| 1268 | (sMostRecentHighRateVsync + | |||
| 1269 | TimeDuration::FromMilliseconds(DefaultInterval())) > TimeStamp::Now(); | |||
| 1270 | if (!inHighRateMode) { | |||
| 1271 | // Clear the timestamp so that the next call is faster. | |||
| 1272 | sMostRecentHighRateVsync = TimeStamp(); | |||
| 1273 | sMostRecentHighRate = TimeDuration(); | |||
| 1274 | return 1.0; | |||
| 1275 | } | |||
| 1276 | ||||
| 1277 | return sMostRecentHighRate.ToMilliseconds() / DefaultInterval(); | |||
| 1278 | } | |||
| 1279 | ||||
| 1280 | // Compute the interval to use for the refresh driver timer, in milliseconds. | |||
| 1281 | // outIsDefault indicates that rate was not explicitly set by the user | |||
| 1282 | // so we might choose other, more appropriate rates (e.g. vsync, etc) | |||
| 1283 | // layout.frame_rate=0 indicates "ASAP mode". | |||
| 1284 | // In ASAP mode rendering is iterated as fast as possible (typically for stress | |||
| 1285 | // testing). A target rate of 10k is used internally instead of special-handling | |||
| 1286 | // 0. Backends which block on swap/present/etc should try to not block when | |||
| 1287 | // layout.frame_rate=0 - to comply with "ASAP" as much as possible. | |||
| 1288 | double nsRefreshDriver::GetRegularTimerInterval() const { | |||
| 1289 | int32_t rate = Preferences::GetInt("layout.frame_rate", -1); | |||
| 1290 | if (rate < 0) { | |||
| 1291 | rate = gfxPlatform::GetDefaultFrameRate(); | |||
| 1292 | } else if (rate == 0) { | |||
| 1293 | rate = 10000; | |||
| 1294 | } | |||
| 1295 | ||||
| 1296 | return 1000.0 / rate; | |||
| 1297 | } | |||
| 1298 | ||||
| 1299 | /* static */ | |||
| 1300 | double nsRefreshDriver::GetThrottledTimerInterval() { | |||
| 1301 | uint32_t rate = StaticPrefs::layout_throttled_frame_rate(); | |||
| 1302 | return 1000.0 / rate; | |||
| 1303 | } | |||
| 1304 | ||||
| 1305 | /* static */ | |||
| 1306 | TimeDuration nsRefreshDriver::GetMinRecomputeVisibilityInterval() { | |||
| 1307 | return TimeDuration::FromMilliseconds( | |||
| 1308 | StaticPrefs::layout_visibility_min_recompute_interval_ms()); | |||
| 1309 | } | |||
| 1310 | ||||
| 1311 | RefreshDriverTimer* nsRefreshDriver::ChooseTimer() { | |||
| 1312 | if (mThrottled) { | |||
| 1313 | if (!sThrottledRateTimer) { | |||
| 1314 | sThrottledRateTimer = new InactiveRefreshDriverTimer( | |||
| 1315 | GetThrottledTimerInterval(), | |||
| 1316 | DEFAULT_INACTIVE_TIMER_DISABLE_SECONDS600 * 1000.0); | |||
| 1317 | } | |||
| 1318 | return sThrottledRateTimer; | |||
| 1319 | } | |||
| 1320 | ||||
| 1321 | if (!mOwnTimer) { | |||
| 1322 | CreateVsyncRefreshTimer(); | |||
| 1323 | } | |||
| 1324 | ||||
| 1325 | if (mOwnTimer) { | |||
| 1326 | return mOwnTimer.get(); | |||
| 1327 | } | |||
| 1328 | ||||
| 1329 | if (!sRegularRateTimer) { | |||
| 1330 | double rate = GetRegularTimerInterval(); | |||
| 1331 | sRegularRateTimer = new StartupRefreshDriverTimer(rate); | |||
| 1332 | } | |||
| 1333 | ||||
| 1334 | return sRegularRateTimer; | |||
| 1335 | } | |||
| 1336 | ||||
| 1337 | static nsDocShell* GetDocShell(nsPresContext* aPresContext) { | |||
| 1338 | if (!aPresContext) { | |||
| 1339 | return nullptr; | |||
| 1340 | } | |||
| 1341 | return static_cast<nsDocShell*>(aPresContext->GetDocShell()); | |||
| 1342 | } | |||
| 1343 | ||||
| 1344 | nsRefreshDriver::nsRefreshDriver(nsPresContext* aPresContext) | |||
| 1345 | : mActiveTimer(nullptr), | |||
| 1346 | mOwnTimer(nullptr), | |||
| 1347 | mPresContext(aPresContext), | |||
| 1348 | mRootRefresh(nullptr), | |||
| 1349 | mNextTransactionId{0}, | |||
| 1350 | mFreezeCount(0), | |||
| 1351 | mThrottledFrameRequestInterval( | |||
| 1352 | TimeDuration::FromMilliseconds(GetThrottledTimerInterval())), | |||
| 1353 | mMinRecomputeVisibilityInterval(GetMinRecomputeVisibilityInterval()), | |||
| 1354 | mThrottled(false), | |||
| 1355 | mNeedToRecomputeVisibility(false), | |||
| 1356 | mTestControllingRefreshes(false), | |||
| 1357 | mViewManagerFlushIsPending(false), | |||
| 1358 | mHasScheduleFlush(false), | |||
| 1359 | mInRefresh(false), | |||
| 1360 | mWaitingForTransaction(false), | |||
| 1361 | mSkippedPaints(false), | |||
| 1362 | mResizeSuppressed(false), | |||
| 1363 | mNeedToUpdateIntersectionObservations(false), | |||
| 1364 | mNeedToUpdateResizeObservers(false), | |||
| 1365 | mNeedToUpdateViewTransitions(false), | |||
| 1366 | mNeedToRunFrameRequestCallbacks(false), | |||
| 1367 | mNeedToUpdateAnimations(false), | |||
| 1368 | mMightNeedMediaQueryListenerUpdate(false), | |||
| 1369 | mNeedToUpdateContentRelevancy(false), | |||
| 1370 | mInNormalTick(false), | |||
| 1371 | mAttemptedExtraTickSinceLastVsync(false), | |||
| 1372 | mHasExceededAfterLoadTickPeriod(false), | |||
| 1373 | mHasStartedTimerAtLeastOnce(false) { | |||
| 1374 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1374); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 1374; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1375 | MOZ_ASSERT(mPresContext,do { static_assert( mozilla::detail::AssertionConditionType< decltype(mPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mPresContext" " (" "Need a pres context to tell us to call Disconnect() later " "and decrement sRefreshDriverCount." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1377); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mPresContext" ") (" "Need a pres context to tell us to call Disconnect() later " "and decrement sRefreshDriverCount." ")"); do { *((volatile int *)__null) = 1377; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1376 | "Need a pres context to tell us to call Disconnect() later "do { static_assert( mozilla::detail::AssertionConditionType< decltype(mPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mPresContext" " (" "Need a pres context to tell us to call Disconnect() later " "and decrement sRefreshDriverCount." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1377); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mPresContext" ") (" "Need a pres context to tell us to call Disconnect() later " "and decrement sRefreshDriverCount." ")"); do { *((volatile int *)__null) = 1377; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1377 | "and decrement sRefreshDriverCount.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mPresContext" " (" "Need a pres context to tell us to call Disconnect() later " "and decrement sRefreshDriverCount." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1377); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mPresContext" ") (" "Need a pres context to tell us to call Disconnect() later " "and decrement sRefreshDriverCount." ")"); do { *((volatile int *)__null) = 1377; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 1378 | mMostRecentRefresh = TimeStamp::Now(); | |||
| 1379 | mNextThrottledFrameRequestTick = mMostRecentRefresh; | |||
| 1380 | mNextRecomputeVisibilityTick = mMostRecentRefresh; | |||
| 1381 | ||||
| 1382 | if (!sRegularRateTimerList) { | |||
| 1383 | sRegularRateTimerList = new nsTArray<RefreshDriverTimer*>(); | |||
| 1384 | } | |||
| 1385 | ++sRefreshDriverCount; | |||
| 1386 | } | |||
| 1387 | ||||
| 1388 | nsRefreshDriver::~nsRefreshDriver() { | |||
| 1389 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1389); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 1389; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1390 | MOZ_ASSERT(ObserverCount() == mEarlyRunners.Length(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(ObserverCount() == mEarlyRunners.Length())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(ObserverCount() == mEarlyRunners.Length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("ObserverCount() == mEarlyRunners.Length()" " (" "observers, except pending selection scrolls, " "should have been unregistered" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1392); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ObserverCount() == mEarlyRunners.Length()" ") (" "observers, except pending selection scrolls, " "should have been unregistered" ")"); do { *((volatile int*)__null) = 1392; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 1391 | "observers, except pending selection scrolls, "do { static_assert( mozilla::detail::AssertionConditionType< decltype(ObserverCount() == mEarlyRunners.Length())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(ObserverCount() == mEarlyRunners.Length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("ObserverCount() == mEarlyRunners.Length()" " (" "observers, except pending selection scrolls, " "should have been unregistered" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1392); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ObserverCount() == mEarlyRunners.Length()" ") (" "observers, except pending selection scrolls, " "should have been unregistered" ")"); do { *((volatile int*)__null) = 1392; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 1392 | "should have been unregistered")do { static_assert( mozilla::detail::AssertionConditionType< decltype(ObserverCount() == mEarlyRunners.Length())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(ObserverCount() == mEarlyRunners.Length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("ObserverCount() == mEarlyRunners.Length()" " (" "observers, except pending selection scrolls, " "should have been unregistered" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1392); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ObserverCount() == mEarlyRunners.Length()" ") (" "observers, except pending selection scrolls, " "should have been unregistered" ")"); do { *((volatile int*)__null) = 1392; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1393 | MOZ_ASSERT(!mActiveTimer, "timer should be gone")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mActiveTimer)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mActiveTimer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mActiveTimer" " (" "timer should be gone" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1393); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mActiveTimer" ") (" "timer should be gone" ")"); do { *((volatile int*)__null ) = 1393; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); | |||
| 1394 | MOZ_ASSERT(!mPresContext,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mPresContext" " (" "Should have called Disconnect() and decremented " "sRefreshDriverCount!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1396); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPresContext" ") (" "Should have called Disconnect() and decremented " "sRefreshDriverCount!" ")"); do { *((volatile int*)__null) = 1396; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 1395 | "Should have called Disconnect() and decremented "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mPresContext" " (" "Should have called Disconnect() and decremented " "sRefreshDriverCount!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1396); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPresContext" ") (" "Should have called Disconnect() and decremented " "sRefreshDriverCount!" ")"); do { *((volatile int*)__null) = 1396; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 1396 | "sRefreshDriverCount!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mPresContext" " (" "Should have called Disconnect() and decremented " "sRefreshDriverCount!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1396); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPresContext" ") (" "Should have called Disconnect() and decremented " "sRefreshDriverCount!" ")"); do { *((volatile int*)__null) = 1396; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1397 | ||||
| 1398 | if (mRootRefresh) { | |||
| 1399 | mRootRefresh->RemoveRefreshObserver(this, FlushType::Style); | |||
| 1400 | mRootRefresh = nullptr; | |||
| 1401 | } | |||
| 1402 | if (mOwnTimer && sRegularRateTimerList) { | |||
| 1403 | sRegularRateTimerList->RemoveElement(mOwnTimer.get()); | |||
| 1404 | } | |||
| 1405 | } | |||
| 1406 | ||||
| 1407 | // Method for testing. See nsIDOMWindowUtils.advanceTimeAndRefresh | |||
| 1408 | // for description. | |||
| 1409 | void nsRefreshDriver::AdvanceTimeAndRefresh(int64_t aMilliseconds) { | |||
| 1410 | // ensure that we're removed from our driver | |||
| 1411 | StopTimer(); | |||
| 1412 | ||||
| 1413 | if (!mTestControllingRefreshes) { | |||
| 1414 | mMostRecentRefresh = TimeStamp::Now(); | |||
| 1415 | ||||
| 1416 | mTestControllingRefreshes = true; | |||
| 1417 | if (mWaitingForTransaction) { | |||
| 1418 | // Disable any refresh driver throttling when entering test mode | |||
| 1419 | mWaitingForTransaction = false; | |||
| 1420 | mSkippedPaints = false; | |||
| 1421 | } | |||
| 1422 | } | |||
| 1423 | ||||
| 1424 | mMostRecentRefresh += TimeDuration::FromMilliseconds((double)aMilliseconds); | |||
| 1425 | ||||
| 1426 | mozilla::dom::AutoNoJSAPI nojsapi; | |||
| 1427 | DoTick(); | |||
| 1428 | } | |||
| 1429 | ||||
| 1430 | void nsRefreshDriver::RestoreNormalRefresh() { | |||
| 1431 | mTestControllingRefreshes = false; | |||
| 1432 | EnsureTimerStarted(eAllowTimeToGoBackwards); | |||
| ||||
| 1433 | mPendingTransactions.Clear(); | |||
| 1434 | } | |||
| 1435 | ||||
| 1436 | TimeStamp nsRefreshDriver::MostRecentRefresh(bool aEnsureTimerStarted) const { | |||
| 1437 | // In case of stylo traversal, we have already activated the refresh driver in | |||
| 1438 | // RestyleManager::ProcessPendingRestyles(). | |||
| 1439 | if (aEnsureTimerStarted && !ServoStyleSet::IsInServoTraversal()) { | |||
| 1440 | const_cast<nsRefreshDriver*>(this)->EnsureTimerStarted(); | |||
| 1441 | } | |||
| 1442 | ||||
| 1443 | return mMostRecentRefresh; | |||
| 1444 | } | |||
| 1445 | ||||
| 1446 | void nsRefreshDriver::AddRefreshObserver(nsARefreshObserver* aObserver, | |||
| 1447 | FlushType aFlushType, | |||
| 1448 | const char* aObserverDescription) { | |||
| 1449 | ObserverArray& array = ArrayFor(aFlushType); | |||
| 1450 | MOZ_ASSERT(!array.Contains(aObserver),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!array.Contains(aObserver))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!array.Contains(aObserver))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!array.Contains(aObserver)" " (" "We don't want to redundantly register the same observer" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1451); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!array.Contains(aObserver)" ") (" "We don't want to redundantly register the same observer" ")"); do { *((volatile int*)__null) = 1451; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 1451 | "We don't want to redundantly register the same observer")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!array.Contains(aObserver))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!array.Contains(aObserver))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!array.Contains(aObserver)" " (" "We don't want to redundantly register the same observer" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1451); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!array.Contains(aObserver)" ") (" "We don't want to redundantly register the same observer" ")"); do { *((volatile int*)__null) = 1451; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1452 | array.AppendElement( | |||
| 1453 | ObserverData{aObserver, aObserverDescription, TimeStamp::Now(), | |||
| 1454 | MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext)), | |||
| 1455 | profiler_capture_backtrace(), aFlushType}); | |||
| 1456 | #ifdef DEBUG1 | |||
| 1457 | MOZ_ASSERT(aObserver->mRegistrationCount >= 0,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aObserver->mRegistrationCount >= 0)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aObserver->mRegistrationCount >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aObserver->mRegistrationCount >= 0" " (" "Registration count shouldn't be able to go negative" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1458); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aObserver->mRegistrationCount >= 0" ") (" "Registration count shouldn't be able to go negative" ")" ); do { *((volatile int*)__null) = 1458; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 1458 | "Registration count shouldn't be able to go negative")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aObserver->mRegistrationCount >= 0)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aObserver->mRegistrationCount >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aObserver->mRegistrationCount >= 0" " (" "Registration count shouldn't be able to go negative" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1458); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aObserver->mRegistrationCount >= 0" ") (" "Registration count shouldn't be able to go negative" ")" ); do { *((volatile int*)__null) = 1458; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1459 | aObserver->mRegistrationCount++; | |||
| 1460 | #endif | |||
| 1461 | EnsureTimerStarted(); | |||
| 1462 | } | |||
| 1463 | ||||
| 1464 | bool nsRefreshDriver::RemoveRefreshObserver(nsARefreshObserver* aObserver, | |||
| 1465 | FlushType aFlushType) { | |||
| 1466 | ObserverArray& array = ArrayFor(aFlushType); | |||
| 1467 | auto index = array.IndexOf(aObserver); | |||
| 1468 | if (index == ObserverArray::array_type::NoIndex) { | |||
| 1469 | return false; | |||
| 1470 | } | |||
| 1471 | ||||
| 1472 | if (profiler_thread_is_being_profiled_for_markers()) { | |||
| 1473 | auto& data = array.ElementAt(index); | |||
| 1474 | nsPrintfCString str("%s [%s]", data.mDescription, | |||
| 1475 | kFlushTypeNames[aFlushType]); | |||
| 1476 | PROFILER_MARKER_TEXT(do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshObserver", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerStack::TakeBacktrace(std::move(data.mCause)), MarkerTiming ::IntervalUntilNowFrom(data.mRegisterTime), std::move(data.mInnerWindowId )), ::geckoprofiler::markers::TextMarker{}, str); } } while ( false); } while (false) | |||
| 1477 | "RefreshObserver", GRAPHICS,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshObserver", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerStack::TakeBacktrace(std::move(data.mCause)), MarkerTiming ::IntervalUntilNowFrom(data.mRegisterTime), std::move(data.mInnerWindowId )), ::geckoprofiler::markers::TextMarker{}, str); } } while ( false); } while (false) | |||
| 1478 | MarkerOptions(MarkerStack::TakeBacktrace(std::move(data.mCause)),do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshObserver", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerStack::TakeBacktrace(std::move(data.mCause)), MarkerTiming ::IntervalUntilNowFrom(data.mRegisterTime), std::move(data.mInnerWindowId )), ::geckoprofiler::markers::TextMarker{}, str); } } while ( false); } while (false) | |||
| 1479 | MarkerTiming::IntervalUntilNowFrom(data.mRegisterTime),do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshObserver", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerStack::TakeBacktrace(std::move(data.mCause)), MarkerTiming ::IntervalUntilNowFrom(data.mRegisterTime), std::move(data.mInnerWindowId )), ::geckoprofiler::markers::TextMarker{}, str); } } while ( false); } while (false) | |||
| 1480 | std::move(data.mInnerWindowId)),do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshObserver", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerStack::TakeBacktrace(std::move(data.mCause)), MarkerTiming ::IntervalUntilNowFrom(data.mRegisterTime), std::move(data.mInnerWindowId )), ::geckoprofiler::markers::TextMarker{}, str); } } while ( false); } while (false) | |||
| 1481 | str)do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshObserver", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerStack::TakeBacktrace(std::move(data.mCause)), MarkerTiming ::IntervalUntilNowFrom(data.mRegisterTime), std::move(data.mInnerWindowId )), ::geckoprofiler::markers::TextMarker{}, str); } } while ( false); } while (false); | |||
| 1482 | } | |||
| 1483 | ||||
| 1484 | array.RemoveElementAt(index); | |||
| 1485 | #ifdef DEBUG1 | |||
| 1486 | aObserver->mRegistrationCount--; | |||
| 1487 | MOZ_ASSERT(aObserver->mRegistrationCount >= 0,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aObserver->mRegistrationCount >= 0)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aObserver->mRegistrationCount >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aObserver->mRegistrationCount >= 0" " (" "Registration count shouldn't be able to go negative" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1488); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aObserver->mRegistrationCount >= 0" ") (" "Registration count shouldn't be able to go negative" ")" ); do { *((volatile int*)__null) = 1488; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 1488 | "Registration count shouldn't be able to go negative")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aObserver->mRegistrationCount >= 0)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aObserver->mRegistrationCount >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aObserver->mRegistrationCount >= 0" " (" "Registration count shouldn't be able to go negative" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1488); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aObserver->mRegistrationCount >= 0" ") (" "Registration count shouldn't be able to go negative" ")" ); do { *((volatile int*)__null) = 1488; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1489 | #endif | |||
| 1490 | return true; | |||
| 1491 | } | |||
| 1492 | ||||
| 1493 | void nsRefreshDriver::PostVisualViewportResizeEvent( | |||
| 1494 | VVPResizeEvent* aResizeEvent) { | |||
| 1495 | mVisualViewportResizeEvents.AppendElement(aResizeEvent); | |||
| 1496 | EnsureTimerStarted(); | |||
| 1497 | } | |||
| 1498 | ||||
| 1499 | void nsRefreshDriver::DispatchVisualViewportResizeEvents() { | |||
| 1500 | // We're taking a hint from scroll events and only dispatch the current set | |||
| 1501 | // of queued resize events. If additional events are posted in response to | |||
| 1502 | // the current events being dispatched, we'll dispatch them on the next tick. | |||
| 1503 | VisualViewportResizeEventArray events = | |||
| 1504 | std::move(mVisualViewportResizeEvents); | |||
| 1505 | for (auto& event : events) { | |||
| 1506 | event->Run(); | |||
| 1507 | } | |||
| 1508 | } | |||
| 1509 | ||||
| 1510 | void nsRefreshDriver::PostScrollEvent(mozilla::Runnable* aScrollEvent, | |||
| 1511 | bool aDelayed) { | |||
| 1512 | if (aDelayed) { | |||
| 1513 | mDelayedScrollEvents.AppendElement(aScrollEvent); | |||
| 1514 | } else { | |||
| 1515 | mScrollEvents.AppendElement(aScrollEvent); | |||
| 1516 | EnsureTimerStarted(); | |||
| 1517 | } | |||
| 1518 | } | |||
| 1519 | ||||
| 1520 | void nsRefreshDriver::PostScrollEndEvent(mozilla::Runnable* aScrollEndEvent, | |||
| 1521 | bool aDelayed) { | |||
| 1522 | if (aDelayed) { | |||
| 1523 | mDelayedScrollEndEvents.AppendElement(aScrollEndEvent); | |||
| 1524 | } else { | |||
| 1525 | mScrollEndEvents.AppendElement(aScrollEndEvent); | |||
| 1526 | EnsureTimerStarted(); | |||
| 1527 | } | |||
| 1528 | } | |||
| 1529 | ||||
| 1530 | void nsRefreshDriver::DispatchScrollEvents() { | |||
| 1531 | // Scroll events are one-shot, so after running them we can drop them. | |||
| 1532 | // However, dispatching a scroll event can potentially cause more scroll | |||
| 1533 | // events to be posted, so we move the initial set into a temporary array | |||
| 1534 | // first. (Newly posted scroll events will be dispatched on the next tick.) | |||
| 1535 | ScrollEventArray events = std::move(mScrollEvents); | |||
| 1536 | for (auto& event : events) { | |||
| 1537 | event->Run(); | |||
| 1538 | } | |||
| 1539 | } | |||
| 1540 | ||||
| 1541 | void nsRefreshDriver::DispatchScrollEndEvents() { | |||
| 1542 | ScrollEventArray events = std::move(mScrollEndEvents); | |||
| 1543 | for (auto& event : events) { | |||
| 1544 | event->Run(); | |||
| 1545 | } | |||
| 1546 | } | |||
| 1547 | ||||
| 1548 | void nsRefreshDriver::PostVisualViewportScrollEvent( | |||
| 1549 | VVPScrollEvent* aScrollEvent) { | |||
| 1550 | mVisualViewportScrollEvents.AppendElement(aScrollEvent); | |||
| 1551 | EnsureTimerStarted(); | |||
| 1552 | } | |||
| 1553 | ||||
| 1554 | void nsRefreshDriver::DispatchVisualViewportScrollEvents() { | |||
| 1555 | // Scroll events are one-shot, so after running them we can drop them. | |||
| 1556 | // However, dispatching a scroll event can potentially cause more scroll | |||
| 1557 | // events to be posted, so we move the initial set into a temporary array | |||
| 1558 | // first. (Newly posted scroll events will be dispatched on the next tick.) | |||
| 1559 | VisualViewportScrollEventArray events = | |||
| 1560 | std::move(mVisualViewportScrollEvents); | |||
| 1561 | for (auto& event : events) { | |||
| 1562 | event->Run(); | |||
| 1563 | } | |||
| 1564 | } | |||
| 1565 | ||||
| 1566 | // https://drafts.csswg.org/cssom-view/#evaluate-media-queries-and-report-changes | |||
| 1567 | void nsRefreshDriver::EvaluateMediaQueriesAndReportChanges() { | |||
| 1568 | if (!mMightNeedMediaQueryListenerUpdate) { | |||
| 1569 | return; | |||
| 1570 | } | |||
| 1571 | mMightNeedMediaQueryListenerUpdate = false; | |||
| 1572 | if (!mPresContext) { | |||
| 1573 | return; | |||
| 1574 | } | |||
| 1575 | AUTO_PROFILER_LABEL_RELEVANT_FOR_JS(mozilla::AutoProfilerLabel raiiObject1576( "Evaluate media queries and report changes" , nullptr, JS::ProfilingCategoryPair::LAYOUT, uint32_t(js::ProfilingStackFrame ::Flags::RELEVANT_FOR_JS)) | |||
| 1576 | "Evaluate media queries and report changes", LAYOUT)mozilla::AutoProfilerLabel raiiObject1576( "Evaluate media queries and report changes" , nullptr, JS::ProfilingCategoryPair::LAYOUT, uint32_t(js::ProfilingStackFrame ::Flags::RELEVANT_FOR_JS)); | |||
| 1577 | RefPtr<Document> doc = mPresContext->Document(); | |||
| 1578 | doc->EvaluateMediaQueriesAndReportChanges(/* aRecurse = */ true); | |||
| 1579 | } | |||
| 1580 | ||||
| 1581 | void nsRefreshDriver::AddPostRefreshObserver( | |||
| 1582 | nsAPostRefreshObserver* aObserver) { | |||
| 1583 | MOZ_ASSERT(!mPostRefreshObservers.Contains(aObserver))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPostRefreshObservers.Contains(aObserver))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!mPostRefreshObservers.Contains(aObserver)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mPostRefreshObservers.Contains(aObserver)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1583); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPostRefreshObservers.Contains(aObserver)" ")"); do { *((volatile int*)__null) = 1583; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1584 | mPostRefreshObservers.AppendElement(aObserver); | |||
| 1585 | } | |||
| 1586 | ||||
| 1587 | void nsRefreshDriver::RemovePostRefreshObserver( | |||
| 1588 | nsAPostRefreshObserver* aObserver) { | |||
| 1589 | bool removed = mPostRefreshObservers.RemoveElement(aObserver); | |||
| 1590 | MOZ_DIAGNOSTIC_ASSERT(removed)do { static_assert( mozilla::detail::AssertionConditionType< decltype(removed)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(removed))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("removed", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1590); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "removed" ")"); do { *((volatile int*)__null) = 1590; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1591 | Unused << removed; | |||
| 1592 | } | |||
| 1593 | ||||
| 1594 | void nsRefreshDriver::AddImageRequest(imgIRequest* aRequest) { | |||
| 1595 | uint32_t delay = GetFirstFrameDelay(aRequest); | |||
| 1596 | if (delay == 0) { | |||
| 1597 | mRequests.Insert(aRequest); | |||
| 1598 | } else { | |||
| 1599 | auto* const start = mStartTable.GetOrInsertNew(delay); | |||
| 1600 | start->mEntries.Insert(aRequest); | |||
| 1601 | } | |||
| 1602 | ||||
| 1603 | EnsureTimerStarted(); | |||
| 1604 | ||||
| 1605 | if (profiler_thread_is_being_profiled_for_markers()) { | |||
| 1606 | nsCOMPtr<nsIURI> uri = aRequest->GetURI(); | |||
| 1607 | ||||
| 1608 | PROFILER_MARKER_TEXT("Image Animation", GRAPHICS,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalStart(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false) | |||
| 1609 | MarkerOptions(MarkerTiming::IntervalStart(),do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalStart(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false) | |||
| 1610 | MarkerInnerWindowIdFromDocShell(do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalStart(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false) | |||
| 1611 | GetDocShell(mPresContext))),do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalStart(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false) | |||
| 1612 | nsContentUtils::TruncatedURLForDisplay(uri))do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalStart(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false); | |||
| 1613 | } | |||
| 1614 | } | |||
| 1615 | ||||
| 1616 | void nsRefreshDriver::RemoveImageRequest(imgIRequest* aRequest) { | |||
| 1617 | // Try to remove from both places, just in case. | |||
| 1618 | bool removed = mRequests.EnsureRemoved(aRequest); | |||
| 1619 | uint32_t delay = GetFirstFrameDelay(aRequest); | |||
| 1620 | if (delay != 0) { | |||
| 1621 | ImageStartData* start = mStartTable.Get(delay); | |||
| 1622 | if (start) { | |||
| 1623 | removed = removed | start->mEntries.EnsureRemoved(aRequest); | |||
| 1624 | } | |||
| 1625 | } | |||
| 1626 | ||||
| 1627 | if (removed && profiler_thread_is_being_profiled_for_markers()) { | |||
| 1628 | nsCOMPtr<nsIURI> uri = aRequest->GetURI(); | |||
| 1629 | ||||
| 1630 | PROFILER_MARKER_TEXT("Image Animation", GRAPHICS,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalEnd(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false) | |||
| 1631 | MarkerOptions(MarkerTiming::IntervalEnd(),do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalEnd(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false) | |||
| 1632 | MarkerInnerWindowIdFromDocShell(do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalEnd(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false) | |||
| 1633 | GetDocShell(mPresContext))),do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalEnd(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false) | |||
| 1634 | nsContentUtils::TruncatedURLForDisplay(uri))do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Image Animation", ::geckoprofiler::category::GRAPHICS, MarkerOptions (MarkerTiming::IntervalEnd(), MarkerInnerWindowIdFromDocShell ( GetDocShell(mPresContext))), ::geckoprofiler::markers::TextMarker {}, nsContentUtils::TruncatedURLForDisplay(uri)); } } while ( false); } while (false); | |||
| 1635 | } | |||
| 1636 | } | |||
| 1637 | ||||
| 1638 | void nsRefreshDriver::RegisterCompositionPayload( | |||
| 1639 | const mozilla::layers::CompositionPayload& aPayload) { | |||
| 1640 | mCompositionPayloads.AppendElement(aPayload); | |||
| 1641 | } | |||
| 1642 | ||||
| 1643 | void nsRefreshDriver::AddForceNotifyContentfulPaintPresContext( | |||
| 1644 | nsPresContext* aPresContext) { | |||
| 1645 | mForceNotifyContentfulPaintPresContexts.AppendElement(aPresContext); | |||
| 1646 | } | |||
| 1647 | ||||
| 1648 | void nsRefreshDriver::FlushForceNotifyContentfulPaintPresContext() { | |||
| 1649 | while (!mForceNotifyContentfulPaintPresContexts.IsEmpty()) { | |||
| 1650 | WeakPtr<nsPresContext> presContext = | |||
| 1651 | mForceNotifyContentfulPaintPresContexts.PopLastElement(); | |||
| 1652 | if (presContext) { | |||
| 1653 | presContext->NotifyContentfulPaint(); | |||
| 1654 | } | |||
| 1655 | } | |||
| 1656 | } | |||
| 1657 | ||||
| 1658 | void nsRefreshDriver::RunDelayedEventsSoon() { | |||
| 1659 | // Place entries for delayed events into their corresponding normal list, | |||
| 1660 | // and schedule a refresh. When these delayed events run, if their document | |||
| 1661 | // still has events suppressed then they will be readded to the delayed | |||
| 1662 | // events list. | |||
| 1663 | ||||
| 1664 | mScrollEvents.AppendElements(mDelayedScrollEvents); | |||
| 1665 | mDelayedScrollEvents.Clear(); | |||
| 1666 | ||||
| 1667 | mScrollEndEvents.AppendElements(mDelayedScrollEvents); | |||
| 1668 | mDelayedScrollEndEvents.Clear(); | |||
| 1669 | ||||
| 1670 | mResizeEventFlushObservers.AppendElements(mDelayedResizeEventFlushObservers); | |||
| 1671 | mDelayedResizeEventFlushObservers.Clear(); | |||
| 1672 | ||||
| 1673 | EnsureTimerStarted(); | |||
| 1674 | } | |||
| 1675 | ||||
| 1676 | bool nsRefreshDriver::CanDoCatchUpTick() { | |||
| 1677 | if (mTestControllingRefreshes || !mActiveTimer) { | |||
| 1678 | return false; | |||
| 1679 | } | |||
| 1680 | ||||
| 1681 | // If we've already ticked for the current timer refresh (or more recently | |||
| 1682 | // than that), then we don't need to do any catching up. | |||
| 1683 | if (mMostRecentRefresh >= mActiveTimer->MostRecentRefresh()) { | |||
| 1684 | return false; | |||
| 1685 | } | |||
| 1686 | ||||
| 1687 | if (mActiveTimer->IsBlocked()) { | |||
| 1688 | return false; | |||
| 1689 | } | |||
| 1690 | ||||
| 1691 | if (mTickVsyncTime.IsNull()) { | |||
| 1692 | // Don't try to run a catch-up tick before there has been at least one | |||
| 1693 | // normal tick. The catch-up tick could negatively affect page load | |||
| 1694 | // performance. | |||
| 1695 | return false; | |||
| 1696 | } | |||
| 1697 | ||||
| 1698 | if (mPresContext && mPresContext->Document()->GetReadyStateEnum() < | |||
| 1699 | Document::READYSTATE_COMPLETE) { | |||
| 1700 | // Don't try to run a catch-up tick before the page has finished loading. | |||
| 1701 | // The catch-up tick could negatively affect page load performance. | |||
| 1702 | return false; | |||
| 1703 | } | |||
| 1704 | ||||
| 1705 | return true; | |||
| 1706 | } | |||
| 1707 | ||||
| 1708 | bool nsRefreshDriver::CanDoExtraTick() { | |||
| 1709 | // Only allow one extra tick per normal vsync tick. | |||
| 1710 | if (mAttemptedExtraTickSinceLastVsync) { | |||
| 1711 | return false; | |||
| 1712 | } | |||
| 1713 | ||||
| 1714 | // If we don't have a timer, or we didn't tick on the timer's | |||
| 1715 | // refresh then we can't do an 'extra' tick (but we may still | |||
| 1716 | // do a catch up tick). | |||
| 1717 | if (!mActiveTimer || | |||
| 1718 | mActiveTimer->MostRecentRefresh() != mMostRecentRefresh) { | |||
| 1719 | return false; | |||
| 1720 | } | |||
| 1721 | ||||
| 1722 | // Grab the current timestamp before checking the tick hint to be sure | |||
| 1723 | // sure that it's equal or smaller than the value used within checking | |||
| 1724 | // the tick hint. | |||
| 1725 | TimeStamp now = TimeStamp::Now(); | |||
| 1726 | Maybe<TimeStamp> nextTick = mActiveTimer->GetNextTickHint(); | |||
| 1727 | int32_t minimumRequiredTime = StaticPrefs::layout_extra_tick_minimum_ms(); | |||
| 1728 | // If there's less than 4 milliseconds until the next tick, it's probably | |||
| 1729 | // not worth trying to catch up. | |||
| 1730 | if (minimumRequiredTime < 0 || !nextTick || | |||
| 1731 | (*nextTick - now) < TimeDuration::FromMilliseconds(minimumRequiredTime)) { | |||
| 1732 | return false; | |||
| 1733 | } | |||
| 1734 | ||||
| 1735 | return true; | |||
| 1736 | } | |||
| 1737 | ||||
| 1738 | void nsRefreshDriver::EnsureTimerStarted(EnsureTimerStartedFlags aFlags) { | |||
| 1739 | // FIXME: Bug 1346065: We should also assert the case where we have no | |||
| 1740 | // stylo-threads. | |||
| 1741 | MOZ_ASSERT(!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread()" " (" "EnsureTimerStarted should be called only when we are not " "in servo traversal or on the main-thread" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1743); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread()" ") (" "EnsureTimerStarted should be called only when we are not " "in servo traversal or on the main-thread" ")"); do { *((volatile int*)__null) = 1743; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1742 | "EnsureTimerStarted should be called only when we are not "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread()" " (" "EnsureTimerStarted should be called only when we are not " "in servo traversal or on the main-thread" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1743); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread()" ") (" "EnsureTimerStarted should be called only when we are not " "in servo traversal or on the main-thread" ")"); do { *((volatile int*)__null) = 1743; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) | |||
| 1743 | "in servo traversal or on the main-thread")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread()" " (" "EnsureTimerStarted should be called only when we are not " "in servo traversal or on the main-thread" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1743); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ServoStyleSet::IsInServoTraversal() || NS_IsMainThread()" ") (" "EnsureTimerStarted should be called only when we are not " "in servo traversal or on the main-thread" ")"); do { *((volatile int*)__null) = 1743; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 1744 | ||||
| 1745 | if (mTestControllingRefreshes
| |||
| 1746 | return; | |||
| 1747 | } | |||
| 1748 | ||||
| 1749 | if (!mRefreshTimerStartedCause) { | |||
| 1750 | mRefreshTimerStartedCause = profiler_capture_backtrace(); | |||
| 1751 | } | |||
| 1752 | ||||
| 1753 | // will it already fire, and no other changes needed? | |||
| 1754 | if (mActiveTimer && !(aFlags & eForceAdjustTimer)) { | |||
| 1755 | // If we're being called from within a user input handler, and we think | |||
| 1756 | // there's time to rush an extra tick immediately, then schedule a runnable | |||
| 1757 | // to run the extra tick. | |||
| 1758 | if (mUserInputProcessingCount && CanDoExtraTick()) { | |||
| 1759 | RefPtr<nsRefreshDriver> self = this; | |||
| 1760 | NS_DispatchToCurrentThreadQueue( | |||
| 1761 | NS_NewRunnableFunction( | |||
| 1762 | "RefreshDriver::EnsureTimerStarted::extra", | |||
| 1763 | [self]() -> void { | |||
| 1764 | // Re-check if we can still do an extra tick, in case anything | |||
| 1765 | // changed while the runnable was pending. | |||
| 1766 | if (self->CanDoExtraTick()) { | |||
| 1767 | PROFILER_MARKER_UNTYPED("ExtraRefreshDriverTick", GRAPHICS)do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("ExtraRefreshDriverTick", ::geckoprofiler::category::GRAPHICS ); } } while (false); } while (false); | |||
| 1768 | LOG("[%p] Doing extra tick for user input", self.get()); | |||
| 1769 | self->mAttemptedExtraTickSinceLastVsync = true; | |||
| 1770 | self->Tick(self->mActiveTimer->MostRecentRefreshVsyncId(), | |||
| 1771 | self->mActiveTimer->MostRecentRefresh(), | |||
| 1772 | IsExtraTick::Yes); | |||
| 1773 | } | |||
| 1774 | }), | |||
| 1775 | EventQueuePriority::Vsync); | |||
| 1776 | } | |||
| 1777 | return; | |||
| 1778 | } | |||
| 1779 | ||||
| 1780 | if (IsFrozen() || !mPresContext) { | |||
| 1781 | // If we don't want to start it now, or we've been disconnected. | |||
| 1782 | StopTimer(); | |||
| 1783 | return; | |||
| 1784 | } | |||
| 1785 | ||||
| 1786 | if (mPresContext->Document()->IsBeingUsedAsImage()) { | |||
| 1787 | // Image documents receive ticks from clients' refresh drivers. | |||
| 1788 | // XXXdholbert Exclude SVG-in-opentype fonts from this optimization, until | |||
| 1789 | // they receive refresh-driver ticks from their client docs (bug 1107252). | |||
| 1790 | if (!mPresContext->Document()->IsSVGGlyphsDocument()) { | |||
| 1791 | MOZ_ASSERT(!mActiveTimer,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mActiveTimer)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mActiveTimer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mActiveTimer" " (" "image doc refresh driver should never have its own timer" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1792); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mActiveTimer" ") (" "image doc refresh driver should never have its own timer" ")"); do { *((volatile int*)__null) = 1792; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 1792 | "image doc refresh driver should never have its own timer")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mActiveTimer)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mActiveTimer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mActiveTimer" " (" "image doc refresh driver should never have its own timer" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 1792); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mActiveTimer" ") (" "image doc refresh driver should never have its own timer" ")"); do { *((volatile int*)__null) = 1792; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 1793 | return; | |||
| 1794 | } | |||
| 1795 | } | |||
| 1796 | ||||
| 1797 | // We got here because we're either adjusting the time *or* we're | |||
| 1798 | // starting it for the first time. Add to the right timer, | |||
| 1799 | // prehaps removing it from a previously-set one. | |||
| 1800 | RefreshDriverTimer* newTimer = ChooseTimer(); | |||
| 1801 | if (newTimer != mActiveTimer) { | |||
| 1802 | if (mActiveTimer) { | |||
| 1803 | mActiveTimer->RemoveRefreshDriver(this); | |||
| 1804 | } | |||
| 1805 | mActiveTimer = newTimer; | |||
| 1806 | mActiveTimer->AddRefreshDriver(this); | |||
| 1807 | ||||
| 1808 | if (!mHasStartedTimerAtLeastOnce) { | |||
| 1809 | mHasStartedTimerAtLeastOnce = true; | |||
| 1810 | if (profiler_thread_is_being_profiled_for_markers()) { | |||
| 1811 | nsCString text = "initial timer start "_ns; | |||
| 1812 | if (mPresContext->Document()->GetDocumentURI()) { | |||
| 1813 | text.Append(nsContentUtils::TruncatedURLForDisplay( | |||
| 1814 | mPresContext->Document()->GetDocumentURI())); | |||
| 1815 | } | |||
| 1816 | ||||
| 1817 | PROFILER_MARKER_TEXT("nsRefreshDriver", LAYOUT,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("nsRefreshDriver", ::geckoprofiler::category::LAYOUT, MarkerOptions (MarkerInnerWindowIdFromDocShell( GetDocShell(mPresContext))) , ::geckoprofiler::markers::TextMarker{}, text); } } while (false ); } while (false) | |||
| 1818 | MarkerOptions(MarkerInnerWindowIdFromDocShell(do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("nsRefreshDriver", ::geckoprofiler::category::LAYOUT, MarkerOptions (MarkerInnerWindowIdFromDocShell( GetDocShell(mPresContext))) , ::geckoprofiler::markers::TextMarker{}, text); } } while (false ); } while (false) | |||
| 1819 | GetDocShell(mPresContext))),do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("nsRefreshDriver", ::geckoprofiler::category::LAYOUT, MarkerOptions (MarkerInnerWindowIdFromDocShell( GetDocShell(mPresContext))) , ::geckoprofiler::markers::TextMarker{}, text); } } while (false ); } while (false) | |||
| 1820 | text)do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("nsRefreshDriver", ::geckoprofiler::category::LAYOUT, MarkerOptions (MarkerInnerWindowIdFromDocShell( GetDocShell(mPresContext))) , ::geckoprofiler::markers::TextMarker{}, text); } } while (false ); } while (false); | |||
| 1821 | } | |||
| 1822 | } | |||
| 1823 | ||||
| 1824 | // If the timer has ticked since we last ticked, consider doing a 'catch-up' | |||
| 1825 | // tick immediately. | |||
| 1826 | if (CanDoCatchUpTick()) { | |||
| 1827 | RefPtr<nsRefreshDriver> self = this; | |||
| 1828 | NS_DispatchToCurrentThreadQueue( | |||
| 1829 | NS_NewRunnableFunction( | |||
| 1830 | "RefreshDriver::EnsureTimerStarted::catch-up", | |||
| 1831 | [self]() -> void { | |||
| 1832 | // Re-check if we can still do a catch-up, in case anything | |||
| 1833 | // changed while the runnable was pending. | |||
| 1834 | if (self->CanDoCatchUpTick()) { | |||
| 1835 | LOG("[%p] Doing catch up tick", self.get()); | |||
| 1836 | self->Tick(self->mActiveTimer->MostRecentRefreshVsyncId(), | |||
| 1837 | self->mActiveTimer->MostRecentRefresh()); | |||
| 1838 | } | |||
| 1839 | }), | |||
| 1840 | EventQueuePriority::Vsync); | |||
| 1841 | } | |||
| 1842 | } | |||
| 1843 | ||||
| 1844 | // When switching from an inactive timer to an active timer, the root | |||
| 1845 | // refresh driver is skipped due to being set to the content refresh | |||
| 1846 | // driver's timestamp. In case of EnsureTimerStarted is called from | |||
| 1847 | // ScheduleViewManagerFlush, we should avoid this behavior to flush | |||
| 1848 | // a paint in the same tick on the root refresh driver. | |||
| 1849 | if (aFlags & eNeverAdjustTimer) { | |||
| 1850 | return; | |||
| 1851 | } | |||
| 1852 | ||||
| 1853 | // Since the different timers are sampled at different rates, when switching | |||
| 1854 | // timers, the most recent refresh of the new timer may be *before* the | |||
| 1855 | // most recent refresh of the old timer. | |||
| 1856 | // If we are restoring the refresh driver from test control, the time is | |||
| 1857 | // expected to go backwards (see bug 1043078), otherwise we just keep the most | |||
| 1858 | // recent tick of this driver (which may be older than the most recent tick of | |||
| 1859 | // the timer). | |||
| 1860 | if (!(aFlags & eAllowTimeToGoBackwards)) { | |||
| 1861 | return; | |||
| 1862 | } | |||
| 1863 | ||||
| 1864 | if (mMostRecentRefresh != mActiveTimer->MostRecentRefresh()) { | |||
| ||||
| 1865 | mMostRecentRefresh = mActiveTimer->MostRecentRefresh(); | |||
| 1866 | } | |||
| 1867 | } | |||
| 1868 | ||||
| 1869 | void nsRefreshDriver::StopTimer() { | |||
| 1870 | if (!mActiveTimer) { | |||
| 1871 | return; | |||
| 1872 | } | |||
| 1873 | ||||
| 1874 | mActiveTimer->RemoveRefreshDriver(this); | |||
| 1875 | mActiveTimer = nullptr; | |||
| 1876 | mRefreshTimerStartedCause = nullptr; | |||
| 1877 | } | |||
| 1878 | ||||
| 1879 | uint32_t nsRefreshDriver::ObserverCount() const { | |||
| 1880 | uint32_t sum = 0; | |||
| 1881 | for (const ObserverArray& array : mObservers) { | |||
| 1882 | sum += array.Length(); | |||
| 1883 | } | |||
| 1884 | ||||
| 1885 | // Even while throttled, we need to process layout and style changes. Style | |||
| 1886 | // changes can trigger transitions which fire events when they complete, and | |||
| 1887 | // layout changes can affect media queries on child documents, triggering | |||
| 1888 | // style changes, etc. | |||
| 1889 | sum += mAnimationEventFlushObservers.Length(); | |||
| 1890 | sum += mResizeEventFlushObservers.Length(); | |||
| 1891 | sum += mStyleFlushObservers.Length(); | |||
| 1892 | sum += mPendingFullscreenEvents.Length(); | |||
| 1893 | sum += mViewManagerFlushIsPending; | |||
| 1894 | sum += mEarlyRunners.Length(); | |||
| 1895 | sum += mAutoFocusFlushDocuments.Length(); | |||
| 1896 | return sum; | |||
| 1897 | } | |||
| 1898 | ||||
| 1899 | bool nsRefreshDriver::HasObservers() const { | |||
| 1900 | for (const ObserverArray& array : mObservers) { | |||
| 1901 | if (!array.IsEmpty()) { | |||
| 1902 | return true; | |||
| 1903 | } | |||
| 1904 | } | |||
| 1905 | ||||
| 1906 | return (mViewManagerFlushIsPending && !mThrottled) || | |||
| 1907 | !mStyleFlushObservers.IsEmpty() || | |||
| 1908 | !mAnimationEventFlushObservers.IsEmpty() || | |||
| 1909 | !mResizeEventFlushObservers.IsEmpty() || | |||
| 1910 | !mPendingFullscreenEvents.IsEmpty() || | |||
| 1911 | !mAutoFocusFlushDocuments.IsEmpty() || !mEarlyRunners.IsEmpty(); | |||
| 1912 | } | |||
| 1913 | ||||
| 1914 | void nsRefreshDriver::AppendObserverDescriptionsToString( | |||
| 1915 | nsACString& aStr) const { | |||
| 1916 | for (const ObserverArray& array : mObservers) { | |||
| 1917 | for (const auto& observer : array.EndLimitedRange()) { | |||
| 1918 | aStr.AppendPrintf("%s [%s], ", observer.mDescription, | |||
| 1919 | kFlushTypeNames[observer.mFlushType]); | |||
| 1920 | } | |||
| 1921 | } | |||
| 1922 | if (mViewManagerFlushIsPending && !mThrottled) { | |||
| 1923 | aStr.AppendLiteral("View manager flush pending, "); | |||
| 1924 | } | |||
| 1925 | if (!mAnimationEventFlushObservers.IsEmpty()) { | |||
| 1926 | aStr.AppendPrintf("%zux Animation event flush observer, ", | |||
| 1927 | mAnimationEventFlushObservers.Length()); | |||
| 1928 | } | |||
| 1929 | if (!mResizeEventFlushObservers.IsEmpty()) { | |||
| 1930 | aStr.AppendPrintf("%zux Resize event flush observer, ", | |||
| 1931 | mResizeEventFlushObservers.Length()); | |||
| 1932 | } | |||
| 1933 | if (!mStyleFlushObservers.IsEmpty()) { | |||
| 1934 | aStr.AppendPrintf("%zux Style flush observer, ", | |||
| 1935 | mStyleFlushObservers.Length()); | |||
| 1936 | } | |||
| 1937 | if (!mPendingFullscreenEvents.IsEmpty()) { | |||
| 1938 | aStr.AppendPrintf("%zux Pending fullscreen event, ", | |||
| 1939 | mPendingFullscreenEvents.Length()); | |||
| 1940 | } | |||
| 1941 | if (!mAutoFocusFlushDocuments.IsEmpty()) { | |||
| 1942 | aStr.AppendPrintf("%zux AutoFocus flush doc, ", | |||
| 1943 | mAutoFocusFlushDocuments.Length()); | |||
| 1944 | } | |||
| 1945 | if (!mEarlyRunners.IsEmpty()) { | |||
| 1946 | aStr.AppendPrintf("%zux Early runner, ", mEarlyRunners.Length()); | |||
| 1947 | } | |||
| 1948 | // Remove last ", " | |||
| 1949 | aStr.Truncate(aStr.Length() - 2); | |||
| 1950 | } | |||
| 1951 | ||||
| 1952 | bool nsRefreshDriver::HasImageRequests() const { | |||
| 1953 | for (const auto& data : mStartTable.Values()) { | |||
| 1954 | if (!data->mEntries.IsEmpty()) { | |||
| 1955 | return true; | |||
| 1956 | } | |||
| 1957 | } | |||
| 1958 | ||||
| 1959 | return !mRequests.IsEmpty(); | |||
| 1960 | } | |||
| 1961 | ||||
| 1962 | auto nsRefreshDriver::GetReasonsToTick() const -> TickReasons { | |||
| 1963 | TickReasons reasons = TickReasons::eNone; | |||
| 1964 | if (HasObservers()) { | |||
| 1965 | reasons |= TickReasons::eHasObservers; | |||
| 1966 | } | |||
| 1967 | if (HasImageRequests() && !mThrottled) { | |||
| 1968 | reasons |= TickReasons::eHasImageRequests; | |||
| 1969 | } | |||
| 1970 | if (mNeedToUpdateResizeObservers) { | |||
| 1971 | reasons |= TickReasons::eNeedsToNotifyResizeObservers; | |||
| 1972 | } | |||
| 1973 | if (mNeedToUpdateViewTransitions) { | |||
| 1974 | reasons |= TickReasons::eNeedsToUpdateViewTransitions; | |||
| 1975 | } | |||
| 1976 | if (mNeedToUpdateAnimations) { | |||
| 1977 | reasons |= TickReasons::eNeedsToUpdateAnimations; | |||
| 1978 | } | |||
| 1979 | if (mNeedToUpdateIntersectionObservations) { | |||
| 1980 | reasons |= TickReasons::eNeedsToUpdateIntersectionObservations; | |||
| 1981 | } | |||
| 1982 | if (mMightNeedMediaQueryListenerUpdate) { | |||
| 1983 | reasons |= TickReasons::eHasPendingMediaQueryListeners; | |||
| 1984 | } | |||
| 1985 | if (mNeedToUpdateContentRelevancy) { | |||
| 1986 | reasons |= TickReasons::eNeedsToUpdateContentRelevancy; | |||
| 1987 | } | |||
| 1988 | if (mNeedToRunFrameRequestCallbacks) { | |||
| 1989 | reasons |= TickReasons::eNeedsToRunFrameRequestCallbacks; | |||
| 1990 | } | |||
| 1991 | if (!mVisualViewportResizeEvents.IsEmpty()) { | |||
| 1992 | reasons |= TickReasons::eHasVisualViewportResizeEvents; | |||
| 1993 | } | |||
| 1994 | if (!mScrollEvents.IsEmpty() || !mScrollEndEvents.IsEmpty()) { | |||
| 1995 | reasons |= TickReasons::eHasScrollEvents; | |||
| 1996 | } | |||
| 1997 | if (!mVisualViewportScrollEvents.IsEmpty()) { | |||
| 1998 | reasons |= TickReasons::eHasVisualViewportScrollEvents; | |||
| 1999 | } | |||
| 2000 | if (mPresContext && mPresContext->IsRoot() && | |||
| 2001 | mPresContext->NeedsMoreTicksForUserInput()) { | |||
| 2002 | reasons |= TickReasons::eRootNeedsMoreTicksForUserInput; | |||
| 2003 | } | |||
| 2004 | return reasons; | |||
| 2005 | } | |||
| 2006 | ||||
| 2007 | void nsRefreshDriver::AppendTickReasonsToString(TickReasons aReasons, | |||
| 2008 | nsACString& aStr) const { | |||
| 2009 | if (aReasons == TickReasons::eNone) { | |||
| 2010 | aStr.AppendLiteral(" <none>"); | |||
| 2011 | return; | |||
| 2012 | } | |||
| 2013 | ||||
| 2014 | if (aReasons & TickReasons::eHasObservers) { | |||
| 2015 | aStr.AppendLiteral(" HasObservers ("); | |||
| 2016 | AppendObserverDescriptionsToString(aStr); | |||
| 2017 | aStr.AppendLiteral(")"); | |||
| 2018 | } | |||
| 2019 | if (aReasons & TickReasons::eHasImageRequests) { | |||
| 2020 | aStr.AppendLiteral(" HasImageAnimations"); | |||
| 2021 | } | |||
| 2022 | if (aReasons & TickReasons::eNeedsToNotifyResizeObservers) { | |||
| 2023 | aStr.AppendLiteral(" NeedsToNotifyResizeObservers"); | |||
| 2024 | } | |||
| 2025 | if (aReasons & TickReasons::eNeedsToUpdateViewTransitions) { | |||
| 2026 | aStr.AppendLiteral(" NeedsToUpdateViewTransitions"); | |||
| 2027 | } | |||
| 2028 | if (aReasons & TickReasons::eNeedsToUpdateAnimations) { | |||
| 2029 | aStr.AppendLiteral(" NeedsToUpdateAnimations"); | |||
| 2030 | } | |||
| 2031 | if (aReasons & TickReasons::eNeedsToUpdateIntersectionObservations) { | |||
| 2032 | aStr.AppendLiteral(" NeedsToUpdateIntersectionObservations"); | |||
| 2033 | } | |||
| 2034 | if (aReasons & TickReasons::eHasPendingMediaQueryListeners) { | |||
| 2035 | aStr.AppendLiteral(" HasPendingMediaQueryListeners"); | |||
| 2036 | } | |||
| 2037 | if (aReasons & TickReasons::eNeedsToUpdateContentRelevancy) { | |||
| 2038 | aStr.AppendLiteral(" NeedsToUpdateContentRelevancy"); | |||
| 2039 | } | |||
| 2040 | if (aReasons & TickReasons::eNeedsToRunFrameRequestCallbacks) { | |||
| 2041 | aStr.AppendLiteral(" NeedsToRunFrameRequestCallbacks"); | |||
| 2042 | } | |||
| 2043 | if (aReasons & TickReasons::eHasVisualViewportResizeEvents) { | |||
| 2044 | aStr.AppendLiteral(" HasVisualViewportResizeEvents"); | |||
| 2045 | } | |||
| 2046 | if (aReasons & TickReasons::eHasScrollEvents) { | |||
| 2047 | aStr.AppendLiteral(" HasScrollEvents"); | |||
| 2048 | } | |||
| 2049 | if (aReasons & TickReasons::eHasVisualViewportScrollEvents) { | |||
| 2050 | aStr.AppendLiteral(" HasVisualViewportScrollEvents"); | |||
| 2051 | } | |||
| 2052 | if (aReasons & TickReasons::eRootNeedsMoreTicksForUserInput) { | |||
| 2053 | aStr.AppendLiteral(" RootNeedsMoreTicksForUserInput"); | |||
| 2054 | } | |||
| 2055 | } | |||
| 2056 | ||||
| 2057 | bool nsRefreshDriver:: | |||
| 2058 | ShouldKeepTimerRunningWhileWaitingForFirstContentfulPaint() { | |||
| 2059 | // On top level content pages keep the timer running initially so that we | |||
| 2060 | // paint the page soon enough. | |||
| 2061 | if (mThrottled || mTestControllingRefreshes || !XRE_IsContentProcess() || | |||
| 2062 | !mPresContext->Document()->IsTopLevelContentDocument() || | |||
| 2063 | mPresContext->Document()->IsInitialDocument() || | |||
| 2064 | gfxPlatform::IsInLayoutAsapMode() || | |||
| 2065 | mPresContext->HadFirstContentfulPaint() || | |||
| 2066 | mPresContext->Document()->GetReadyStateEnum() == | |||
| 2067 | Document::READYSTATE_COMPLETE) { | |||
| 2068 | return false; | |||
| 2069 | } | |||
| 2070 | if (mBeforeFirstContentfulPaintTimerRunningLimit.IsNull()) { | |||
| 2071 | // Don't let the timer to run forever, so limit to 4s for now. | |||
| 2072 | mBeforeFirstContentfulPaintTimerRunningLimit = | |||
| 2073 | TimeStamp::Now() + TimeDuration::FromSeconds(4.0f); | |||
| 2074 | } | |||
| 2075 | ||||
| 2076 | return TimeStamp::Now() <= mBeforeFirstContentfulPaintTimerRunningLimit; | |||
| 2077 | } | |||
| 2078 | ||||
| 2079 | bool nsRefreshDriver::ShouldKeepTimerRunningAfterPageLoad() { | |||
| 2080 | if (mHasExceededAfterLoadTickPeriod || | |||
| 2081 | !StaticPrefs::layout_keep_ticking_after_load_ms() || mThrottled || | |||
| 2082 | mTestControllingRefreshes || !XRE_IsContentProcess() || | |||
| 2083 | !mPresContext->Document()->IsTopLevelContentDocument() || | |||
| 2084 | TaskController::Get()->PendingMainthreadTaskCountIncludingSuspended() == | |||
| 2085 | 0 || | |||
| 2086 | gfxPlatform::IsInLayoutAsapMode()) { | |||
| 2087 | // Make the next check faster. | |||
| 2088 | mHasExceededAfterLoadTickPeriod = true; | |||
| 2089 | return false; | |||
| 2090 | } | |||
| 2091 | ||||
| 2092 | nsPIDOMWindowInner* innerWindow = mPresContext->Document()->GetInnerWindow(); | |||
| 2093 | if (!innerWindow) { | |||
| 2094 | return false; | |||
| 2095 | } | |||
| 2096 | auto* perf = | |||
| 2097 | static_cast<PerformanceMainThread*>(innerWindow->GetPerformance()); | |||
| 2098 | if (!perf) { | |||
| 2099 | return false; | |||
| 2100 | } | |||
| 2101 | nsDOMNavigationTiming* timing = perf->GetDOMTiming(); | |||
| 2102 | if (!timing) { | |||
| 2103 | return false; | |||
| 2104 | } | |||
| 2105 | TimeStamp loadend = timing->LoadEventEnd(); | |||
| 2106 | if (!loadend) { | |||
| 2107 | return false; | |||
| 2108 | } | |||
| 2109 | // Keep ticking after the page load for some time. | |||
| 2110 | const bool retval = | |||
| 2111 | (loadend + TimeDuration::FromMilliseconds( | |||
| 2112 | StaticPrefs::layout_keep_ticking_after_load_ms())) > | |||
| 2113 | TimeStamp::Now(); | |||
| 2114 | if (!retval) { | |||
| 2115 | mHasExceededAfterLoadTickPeriod = true; | |||
| 2116 | } | |||
| 2117 | return retval; | |||
| 2118 | } | |||
| 2119 | ||||
| 2120 | nsRefreshDriver::ObserverArray& nsRefreshDriver::ArrayFor( | |||
| 2121 | FlushType aFlushType) { | |||
| 2122 | switch (aFlushType) { | |||
| 2123 | case FlushType::Event: | |||
| 2124 | return mObservers[0]; | |||
| 2125 | case FlushType::Style: | |||
| 2126 | return mObservers[1]; | |||
| 2127 | case FlushType::Display: | |||
| 2128 | return mObservers[2]; | |||
| 2129 | default: | |||
| 2130 | MOZ_CRASH("We don't track refresh observers for this flush type")do { do { } while (false); MOZ_ReportCrash("" "We don't track refresh observers for this flush type" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2130); AnnotateMozCrashReason("MOZ_CRASH(" "We don't track refresh observers for this flush type" ")"); do { *((volatile int*)__null) = 2130; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | |||
| 2131 | } | |||
| 2132 | } | |||
| 2133 | ||||
| 2134 | /* | |||
| 2135 | * nsITimerCallback implementation | |||
| 2136 | */ | |||
| 2137 | ||||
| 2138 | void nsRefreshDriver::DoTick() { | |||
| 2139 | MOZ_ASSERT(!IsFrozen(), "Why are we notified while frozen?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFrozen())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsFrozen()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsFrozen()" " (" "Why are we notified while frozen?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2139); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFrozen()" ") (" "Why are we notified while frozen?" ")"); do { *((volatile int*)__null) = 2139; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | |||
| 2140 | MOZ_ASSERT(mPresContext, "Why are we notified after disconnection?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mPresContext" " (" "Why are we notified after disconnection?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2140); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mPresContext" ") (" "Why are we notified after disconnection?" ")"); do { * ((volatile int*)__null) = 2140; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); | |||
| 2141 | MOZ_ASSERT(!nsContentUtils::GetCurrentJSContext(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!nsContentUtils::GetCurrentJSContext())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!nsContentUtils::GetCurrentJSContext()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!nsContentUtils::GetCurrentJSContext()" " (" "Shouldn't have a JSContext on the stack" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2142); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!nsContentUtils::GetCurrentJSContext()" ") (" "Shouldn't have a JSContext on the stack" ")"); do { * ((volatile int*)__null) = 2142; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) | |||
| 2142 | "Shouldn't have a JSContext on the stack")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!nsContentUtils::GetCurrentJSContext())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!nsContentUtils::GetCurrentJSContext()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!nsContentUtils::GetCurrentJSContext()" " (" "Shouldn't have a JSContext on the stack" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2142); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!nsContentUtils::GetCurrentJSContext()" ") (" "Shouldn't have a JSContext on the stack" ")"); do { * ((volatile int*)__null) = 2142; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); | |||
| 2143 | ||||
| 2144 | if (mTestControllingRefreshes) { | |||
| 2145 | Tick(VsyncId(), mMostRecentRefresh); | |||
| 2146 | } else { | |||
| 2147 | Tick(VsyncId(), TimeStamp::Now()); | |||
| 2148 | } | |||
| 2149 | } | |||
| 2150 | ||||
| 2151 | void nsRefreshDriver::ScheduleAutoFocusFlush(Document* aDocument) { | |||
| 2152 | MOZ_ASSERT(!mAutoFocusFlushDocuments.Contains(aDocument))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mAutoFocusFlushDocuments.Contains(aDocument))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mAutoFocusFlushDocuments.Contains(aDocument)))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("!mAutoFocusFlushDocuments.Contains(aDocument)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2152); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mAutoFocusFlushDocuments.Contains(aDocument)" ")"); do { *((volatile int*)__null) = 2152; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2153 | mAutoFocusFlushDocuments.AppendElement(aDocument); | |||
| 2154 | EnsureTimerStarted(); | |||
| 2155 | } | |||
| 2156 | ||||
| 2157 | void nsRefreshDriver::FlushAutoFocusDocuments() { | |||
| 2158 | nsTArray<RefPtr<Document>> docs(std::move(mAutoFocusFlushDocuments)); | |||
| 2159 | ||||
| 2160 | for (const auto& doc : docs) { | |||
| 2161 | MOZ_KnownLive(doc)(doc)->FlushAutoFocusCandidates(); | |||
| 2162 | } | |||
| 2163 | } | |||
| 2164 | ||||
| 2165 | void nsRefreshDriver::DispatchResizeEvents() { | |||
| 2166 | AutoTArray<RefPtr<PresShell>, 16> observers; | |||
| 2167 | observers.AppendElements(mResizeEventFlushObservers); | |||
| 2168 | for (RefPtr<PresShell>& presShell : Reversed(observers)) { | |||
| 2169 | if (!mPresContext || !mPresContext->GetPresShell()) { | |||
| 2170 | break; | |||
| 2171 | } | |||
| 2172 | // Make sure to not process observers which might have been removed during | |||
| 2173 | // previous iterations. | |||
| 2174 | if (!mResizeEventFlushObservers.RemoveElement(presShell)) { | |||
| 2175 | continue; | |||
| 2176 | } | |||
| 2177 | // MOZ_KnownLive because 'observers' is guaranteed to keep it alive. | |||
| 2178 | // | |||
| 2179 | // Fixing https://bugzilla.mozilla.org/show_bug.cgi?id=1620312 on its own | |||
| 2180 | // won't help here, because 'observers' is non-const and we have the | |||
| 2181 | // Reversed() going on too... | |||
| 2182 | MOZ_KnownLive(presShell)(presShell)->FireResizeEvent(); | |||
| 2183 | } | |||
| 2184 | } | |||
| 2185 | ||||
| 2186 | void nsRefreshDriver::FlushLayoutOnPendingDocsAndFixUpFocus() { | |||
| 2187 | AutoTArray<RefPtr<PresShell>, 16> observers; | |||
| 2188 | observers.AppendElements(mStyleFlushObservers); | |||
| 2189 | for (RefPtr<PresShell>& presShell : Reversed(observers)) { | |||
| 2190 | if (!mPresContext || !mPresContext->GetPresShell()) { | |||
| 2191 | break; | |||
| 2192 | } | |||
| 2193 | // Make sure to not process observers which might have been removed during | |||
| 2194 | // previous iterations. | |||
| 2195 | if (!mStyleFlushObservers.RemoveElement(presShell)) { | |||
| 2196 | continue; | |||
| 2197 | } | |||
| 2198 | ||||
| 2199 | LogPresShellObserver::Run run(presShell, this); | |||
| 2200 | presShell->mWasLastReflowInterrupted = false; | |||
| 2201 | const ChangesToFlush ctf(FlushType::InterruptibleLayout, false); | |||
| 2202 | // MOZ_KnownLive because 'observers' is guaranteed to keep it alive. | |||
| 2203 | MOZ_KnownLive(presShell)(presShell)->FlushPendingNotifications(ctf); | |||
| 2204 | const bool fixedUpFocus = MOZ_KnownLive(presShell)(presShell)->FixUpFocus(); | |||
| 2205 | if (fixedUpFocus) { | |||
| 2206 | MOZ_KnownLive(presShell)(presShell)->FlushPendingNotifications(ctf); | |||
| 2207 | } | |||
| 2208 | // This is a bit subtle: We intentionally mark the pres shell as not | |||
| 2209 | // observing style flushes here, rather than above the flush, so that | |||
| 2210 | // reflows scheduled from the style flush, but processed by the (same) | |||
| 2211 | // layout flush, don't end up needlessly scheduling another tick. | |||
| 2212 | // Instead, we re-observe only if after a flush we still need a style / | |||
| 2213 | // layout flush / focus fix-up. These should generally never happen, but | |||
| 2214 | // the later can for example if you have focus shifts during the focus | |||
| 2215 | // fixup event listeners etc. | |||
| 2216 | presShell->mObservingStyleFlushes = false; | |||
| 2217 | if (NS_WARN_IF(presShell->NeedStyleFlush())NS_warn_if_impl(presShell->NeedStyleFlush(), "presShell->NeedStyleFlush()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2217) || | |||
| 2218 | NS_WARN_IF(presShell->NeedLayoutFlush())NS_warn_if_impl(presShell->NeedLayoutFlush(), "presShell->NeedLayoutFlush()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2218) || | |||
| 2219 | NS_WARN_IF(fixedUpFocus && presShell->NeedsFocusFixUp())NS_warn_if_impl(fixedUpFocus && presShell->NeedsFocusFixUp (), "fixedUpFocus && presShell->NeedsFocusFixUp()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2219)) { | |||
| 2220 | presShell->ObserveStyleFlushes(); | |||
| 2221 | } | |||
| 2222 | ||||
| 2223 | // Inform the FontFaceSet that we ticked, so that it can resolve its ready | |||
| 2224 | // promise if it needs to. | |||
| 2225 | presShell->NotifyFontFaceSetOnRefresh(); | |||
| 2226 | mNeedToRecomputeVisibility = true; | |||
| 2227 | } | |||
| 2228 | } | |||
| 2229 | ||||
| 2230 | void nsRefreshDriver::MaybeIncreaseMeasuredTicksSinceLoading() { | |||
| 2231 | if (mPresContext && mPresContext->IsRoot()) { | |||
| 2232 | mPresContext->MaybeIncreaseMeasuredTicksSinceLoading(); | |||
| 2233 | } | |||
| 2234 | } | |||
| 2235 | ||||
| 2236 | void nsRefreshDriver::CancelFlushAutoFocus(Document* aDocument) { | |||
| 2237 | mAutoFocusFlushDocuments.RemoveElement(aDocument); | |||
| 2238 | } | |||
| 2239 | ||||
| 2240 | // https://fullscreen.spec.whatwg.org/#run-the-fullscreen-steps | |||
| 2241 | void nsRefreshDriver::RunFullscreenSteps() { | |||
| 2242 | // Swap out the current pending events | |||
| 2243 | nsTArray<UniquePtr<PendingFullscreenEvent>> pendings( | |||
| 2244 | std::move(mPendingFullscreenEvents)); | |||
| 2245 | for (UniquePtr<PendingFullscreenEvent>& event : pendings) { | |||
| 2246 | event->Dispatch(); | |||
| 2247 | } | |||
| 2248 | } | |||
| 2249 | ||||
| 2250 | void nsRefreshDriver::PerformPendingViewTransitionOperations() { | |||
| 2251 | if (!mNeedToUpdateViewTransitions) { | |||
| 2252 | return; | |||
| 2253 | } | |||
| 2254 | mNeedToUpdateViewTransitions = false; | |||
| 2255 | AUTO_PROFILER_LABEL_RELEVANT_FOR_JS("View Transitions", LAYOUT)mozilla::AutoProfilerLabel raiiObject2255( "View Transitions" , nullptr, JS::ProfilingCategoryPair::LAYOUT, uint32_t(js::ProfilingStackFrame ::Flags::RELEVANT_FOR_JS)); | |||
| 2256 | mPresContext->Document()->PerformPendingViewTransitionOperations(); | |||
| 2257 | } | |||
| 2258 | ||||
| 2259 | void nsRefreshDriver::UpdateIntersectionObservations(TimeStamp aNowTime) { | |||
| 2260 | AUTO_PROFILER_LABEL_RELEVANT_FOR_JS("Compute intersections", LAYOUT)mozilla::AutoProfilerLabel raiiObject2260( "Compute intersections" , nullptr, JS::ProfilingCategoryPair::LAYOUT, uint32_t(js::ProfilingStackFrame ::Flags::RELEVANT_FOR_JS)); | |||
| 2261 | mPresContext->Document()->UpdateIntersections(aNowTime); | |||
| 2262 | mNeedToUpdateIntersectionObservations = false; | |||
| 2263 | } | |||
| 2264 | ||||
| 2265 | void nsRefreshDriver::UpdateRemoteFrameEffects() { | |||
| 2266 | mPresContext->Document()->UpdateRemoteFrameEffects(); | |||
| 2267 | } | |||
| 2268 | ||||
| 2269 | void nsRefreshDriver::UpdateRelevancyOfContentVisibilityAutoFrames() { | |||
| 2270 | if (!mNeedToUpdateContentRelevancy) { | |||
| 2271 | return; | |||
| 2272 | } | |||
| 2273 | ||||
| 2274 | if (RefPtr<PresShell> topLevelPresShell = mPresContext->GetPresShell()) { | |||
| 2275 | topLevelPresShell->UpdateRelevancyOfContentVisibilityAutoFrames(); | |||
| 2276 | } | |||
| 2277 | ||||
| 2278 | mPresContext->Document()->EnumerateSubDocuments([](Document& aSubDoc) { | |||
| 2279 | if (PresShell* presShell = aSubDoc.GetPresShell()) { | |||
| 2280 | presShell->UpdateRelevancyOfContentVisibilityAutoFrames(); | |||
| 2281 | } | |||
| 2282 | return CallState::Continue; | |||
| 2283 | }); | |||
| 2284 | ||||
| 2285 | mNeedToUpdateContentRelevancy = false; | |||
| 2286 | } | |||
| 2287 | ||||
| 2288 | void nsRefreshDriver::DetermineProximityToViewportAndNotifyResizeObservers() { | |||
| 2289 | AUTO_PROFILER_LABEL_RELEVANT_FOR_JS("Update the rendering: step 14", LAYOUT)mozilla::AutoProfilerLabel raiiObject2289( "Update the rendering: step 14" , nullptr, JS::ProfilingCategoryPair::LAYOUT, uint32_t(js::ProfilingStackFrame ::Flags::RELEVANT_FOR_JS)); | |||
| 2290 | // NotifyResizeObservers might re-schedule us for next tick. | |||
| 2291 | mNeedToUpdateResizeObservers = false; | |||
| 2292 | ||||
| 2293 | if (MOZ_UNLIKELY(!mPresContext)(__builtin_expect(!!(!mPresContext), 0))) { | |||
| 2294 | return; | |||
| 2295 | } | |||
| 2296 | ||||
| 2297 | auto ShouldCollect = [](const Document* aDocument) { | |||
| 2298 | PresShell* ps = aDocument->GetPresShell(); | |||
| 2299 | if (!ps || !ps->DidInitialize()) { | |||
| 2300 | // If there's no shell or it didn't initialize, then we'll run this code | |||
| 2301 | // when the pres shell does the initial reflow. | |||
| 2302 | return false; | |||
| 2303 | } | |||
| 2304 | return ps->HasContentVisibilityAutoFrames() || | |||
| 2305 | aDocument->HasResizeObservers() || | |||
| 2306 | aDocument->HasElementsWithLastRememberedSize(); | |||
| 2307 | }; | |||
| 2308 | ||||
| 2309 | AutoTArray<RefPtr<Document>, 32> documents; | |||
| 2310 | if (ShouldCollect(mPresContext->Document())) { | |||
| 2311 | documents.AppendElement(mPresContext->Document()); | |||
| 2312 | } | |||
| 2313 | mPresContext->Document()->CollectDescendantDocuments(documents, | |||
| 2314 | ShouldCollect); | |||
| 2315 | ||||
| 2316 | for (const RefPtr<Document>& doc : documents) { | |||
| 2317 | MOZ_KnownLive(doc)(doc)->DetermineProximityToViewportAndNotifyResizeObservers(); | |||
| 2318 | } | |||
| 2319 | } | |||
| 2320 | ||||
| 2321 | static CallState UpdateAndReduceAnimations(Document& aDocument) { | |||
| 2322 | for (DocumentTimeline* tl : | |||
| 2323 | ToTArray<AutoTArray<RefPtr<DocumentTimeline>, 32>>( | |||
| 2324 | aDocument.Timelines())) { | |||
| 2325 | tl->WillRefresh(); | |||
| 2326 | } | |||
| 2327 | ||||
| 2328 | if (nsPresContext* pc = aDocument.GetPresContext()) { | |||
| 2329 | if (pc->EffectCompositor()->NeedsReducing()) { | |||
| 2330 | pc->EffectCompositor()->ReduceAnimations(); | |||
| 2331 | } | |||
| 2332 | } | |||
| 2333 | aDocument.EnumerateSubDocuments(UpdateAndReduceAnimations); | |||
| 2334 | return CallState::Continue; | |||
| 2335 | } | |||
| 2336 | ||||
| 2337 | void nsRefreshDriver::UpdateAnimationsAndSendEvents() { | |||
| 2338 | // TODO(emilio): Can we early-return here if mNeedToUpdateAnimations is | |||
| 2339 | // already false? | |||
| 2340 | mNeedToUpdateAnimations = false; | |||
| 2341 | if (!mPresContext) { | |||
| 2342 | return; | |||
| 2343 | } | |||
| 2344 | ||||
| 2345 | { | |||
| 2346 | // Animation updates may queue Promise resolution microtasks. We shouldn't | |||
| 2347 | // run these, however, until we have fully updated the animation state. As | |||
| 2348 | // per the "update animations and send events" procedure[1], we should | |||
| 2349 | // remove replaced animations and then run these microtasks before | |||
| 2350 | // dispatching the corresponding animation events. | |||
| 2351 | // | |||
| 2352 | // [1]: | |||
| 2353 | // https://drafts.csswg.org/web-animations-1/#update-animations-and-send-events | |||
| 2354 | nsAutoMicroTask mt; | |||
| 2355 | RefPtr doc = mPresContext->Document(); | |||
| 2356 | UpdateAndReduceAnimations(*doc); | |||
| 2357 | } | |||
| 2358 | ||||
| 2359 | // Hold all AnimationEventDispatcher in mAnimationEventFlushObservers as | |||
| 2360 | // a RefPtr<> array since each AnimationEventDispatcher might be destroyed | |||
| 2361 | // during processing the previous dispatcher. | |||
| 2362 | AutoTArray<RefPtr<AnimationEventDispatcher>, 16> dispatchers; | |||
| 2363 | dispatchers.AppendElements(mAnimationEventFlushObservers); | |||
| 2364 | mAnimationEventFlushObservers.Clear(); | |||
| 2365 | ||||
| 2366 | for (auto& dispatcher : dispatchers) { | |||
| 2367 | dispatcher->DispatchEvents(); | |||
| 2368 | } | |||
| 2369 | } | |||
| 2370 | ||||
| 2371 | void nsRefreshDriver::RunVideoFrameCallbacks( | |||
| 2372 | const nsTArray<RefPtr<Document>>& aDocs, TimeStamp aNowTime) { | |||
| 2373 | // For each fully active Document in docs, for each associated video element | |||
| 2374 | // for that Document, run the video frame request callbacks passing now as the | |||
| 2375 | // timestamp. | |||
| 2376 | Maybe<TimeStamp> nextTickHint; | |||
| 2377 | for (Document* doc : aDocs) { | |||
| 2378 | nsTArray<RefPtr<HTMLVideoElement>> videoElms; | |||
| 2379 | doc->TakeVideoFrameRequestCallbacks(videoElms); | |||
| 2380 | if (videoElms.IsEmpty()) { | |||
| 2381 | continue; | |||
| 2382 | } | |||
| 2383 | ||||
| 2384 | DOMHighResTimeStamp timeStamp = 0; | |||
| 2385 | DOMHighResTimeStamp nextTickTimeStamp = 0; | |||
| 2386 | if (auto* innerWindow = doc->GetInnerWindow()) { | |||
| 2387 | if (Performance* perf = innerWindow->GetPerformance()) { | |||
| 2388 | if (!nextTickHint) { | |||
| 2389 | nextTickHint = GetNextTickHint(); | |||
| 2390 | } | |||
| 2391 | timeStamp = perf->TimeStampToDOMHighResForRendering(aNowTime); | |||
| 2392 | nextTickTimeStamp = | |||
| 2393 | nextTickHint | |||
| 2394 | ? perf->TimeStampToDOMHighResForRendering(*nextTickHint) | |||
| 2395 | : timeStamp; | |||
| 2396 | } | |||
| 2397 | // else window is partially torn down already | |||
| 2398 | } | |||
| 2399 | ||||
| 2400 | AUTO_PROFILER_TRACING_MARKER_INNERWINDOWID(AutoProfilerTracing raiiObject2401("Paint", "requestVideoFrame callbacks" , geckoprofiler::category::GRAPHICS, mozilla::Some(doc->InnerWindowID ())) | |||
| 2401 | "Paint", "requestVideoFrame callbacks", GRAPHICS, doc->InnerWindowID())AutoProfilerTracing raiiObject2401("Paint", "requestVideoFrame callbacks" , geckoprofiler::category::GRAPHICS, mozilla::Some(doc->InnerWindowID ())); | |||
| 2402 | for (const auto& videoElm : videoElms) { | |||
| 2403 | nsTArray<VideoFrameRequest> callbacks; | |||
| 2404 | VideoFrameCallbackMetadata metadata; | |||
| 2405 | ||||
| 2406 | // Presentation time is our best estimate of when the video frame was | |||
| 2407 | // submitted for compositing. Given that we decode frames in advance, | |||
| 2408 | // this can be most closely estimated as the vsync time (aNowTime), as | |||
| 2409 | // that is when the compositor samples the ImageHost to get the next | |||
| 2410 | // frame to present. | |||
| 2411 | metadata.mPresentationTime = timeStamp; | |||
| 2412 | ||||
| 2413 | // Expected display time is our best estimate of when the video frame we | |||
| 2414 | // are submitting for compositing this cycle is shown to the user's eye. | |||
| 2415 | // This will generally be when the next vsync triggers, assuming we do | |||
| 2416 | // not fall behind on compositing. | |||
| 2417 | metadata.mExpectedDisplayTime = nextTickTimeStamp; | |||
| 2418 | ||||
| 2419 | // TakeVideoFrameRequestCallbacks is responsible for populating the rest | |||
| 2420 | // of the metadata fields. If it is not ready, or there has been no | |||
| 2421 | // change, it will not populate metadata nor yield any callbacks. | |||
| 2422 | videoElm->TakeVideoFrameRequestCallbacks(aNowTime, nextTickHint, metadata, | |||
| 2423 | callbacks); | |||
| 2424 | ||||
| 2425 | for (auto& callback : callbacks) { | |||
| 2426 | if (videoElm->IsVideoFrameCallbackCancelled(callback.mHandle)) { | |||
| 2427 | continue; | |||
| 2428 | } | |||
| 2429 | ||||
| 2430 | // MOZ_KnownLive is OK, because the stack array frameRequestCallbacks | |||
| 2431 | // keeps callback alive and the mCallback strong reference can't be | |||
| 2432 | // mutated by the call. | |||
| 2433 | LogVideoFrameRequestCallback::Run run(callback.mCallback); | |||
| 2434 | MOZ_KnownLive(callback.mCallback)(callback.mCallback)->Call(timeStamp, metadata); | |||
| 2435 | } | |||
| 2436 | } | |||
| 2437 | } | |||
| 2438 | } | |||
| 2439 | ||||
| 2440 | void nsRefreshDriver::RunFrameRequestCallbacks( | |||
| 2441 | const nsTArray<RefPtr<Document>>& aDocs, TimeStamp aNowTime) { | |||
| 2442 | for (Document* doc : aDocs) { | |||
| 2443 | nsTArray<FrameRequest> callbacks; | |||
| 2444 | doc->TakeFrameRequestCallbacks(callbacks); | |||
| 2445 | if (callbacks.IsEmpty()) { | |||
| 2446 | continue; | |||
| 2447 | } | |||
| 2448 | ||||
| 2449 | DOMHighResTimeStamp timeStamp = 0; | |||
| 2450 | RefPtr innerWindow = nsGlobalWindowInner::Cast(doc->GetInnerWindow()); | |||
| 2451 | if (innerWindow) { | |||
| 2452 | if (Performance* perf = innerWindow->GetPerformance()) { | |||
| 2453 | timeStamp = perf->TimeStampToDOMHighResForRendering(aNowTime); | |||
| 2454 | } | |||
| 2455 | // else window is partially torn down already | |||
| 2456 | } | |||
| 2457 | ||||
| 2458 | AUTO_PROFILER_TRACING_MARKER_INNERWINDOWID(AutoProfilerTracing raiiObject2460("Paint", "requestAnimationFrame callbacks" , geckoprofiler::category::GRAPHICS, mozilla::Some(doc->InnerWindowID ())) | |||
| 2459 | "Paint", "requestAnimationFrame callbacks", GRAPHICS,AutoProfilerTracing raiiObject2460("Paint", "requestAnimationFrame callbacks" , geckoprofiler::category::GRAPHICS, mozilla::Some(doc->InnerWindowID ())) | |||
| 2460 | doc->InnerWindowID())AutoProfilerTracing raiiObject2460("Paint", "requestAnimationFrame callbacks" , geckoprofiler::category::GRAPHICS, mozilla::Some(doc->InnerWindowID ())); | |||
| 2461 | for (const auto& callback : callbacks) { | |||
| 2462 | if (doc->IsCanceledFrameRequestCallback(callback.mHandle)) { | |||
| 2463 | continue; | |||
| 2464 | } | |||
| 2465 | ||||
| 2466 | CallbackDebuggerNotificationGuard guard( | |||
| 2467 | innerWindow, DebuggerNotificationType::RequestAnimationFrameCallback); | |||
| 2468 | ||||
| 2469 | // MOZ_KnownLive is OK, because the stack array frameRequestCallbacks | |||
| 2470 | // keeps callback alive and the mCallback strong reference can't be | |||
| 2471 | // mutated by the call. | |||
| 2472 | LogFrameRequestCallback::Run run(callback.mCallback); | |||
| 2473 | MOZ_KnownLive(callback.mCallback)(callback.mCallback)->Call(timeStamp); | |||
| 2474 | } | |||
| 2475 | } | |||
| 2476 | } | |||
| 2477 | ||||
| 2478 | void nsRefreshDriver::RunVideoAndFrameRequestCallbacks(TimeStamp aNowTime) { | |||
| 2479 | if (!mNeedToRunFrameRequestCallbacks) { | |||
| 2480 | return; | |||
| 2481 | } | |||
| 2482 | mNeedToRunFrameRequestCallbacks = false; | |||
| 2483 | const bool tickThrottledFrameRequests = [&] { | |||
| 2484 | if (mThrottled) { | |||
| 2485 | // We always tick throttled frame requests if the entire refresh driver is | |||
| 2486 | // throttled, because in that situation throttled frame requests tick at | |||
| 2487 | // the same frequency as non-throttled frame requests. | |||
| 2488 | return true; | |||
| 2489 | } | |||
| 2490 | if (aNowTime >= mNextThrottledFrameRequestTick) { | |||
| 2491 | mNextThrottledFrameRequestTick = | |||
| 2492 | aNowTime + mThrottledFrameRequestInterval; | |||
| 2493 | return true; | |||
| 2494 | } | |||
| 2495 | return false; | |||
| 2496 | }(); | |||
| 2497 | ||||
| 2498 | if (NS_WARN_IF(!mPresContext)NS_warn_if_impl(!mPresContext, "!mPresContext", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2498)) { | |||
| 2499 | return; | |||
| 2500 | } | |||
| 2501 | // Grab all of our documents that can fire frame request callbacks up front. | |||
| 2502 | AutoTArray<RefPtr<Document>, 8> docs; | |||
| 2503 | auto ShouldCollect = [](const Document* aDoc) { | |||
| 2504 | // TODO(emilio): Consider removing HasFrameRequestCallbacks() to deal with | |||
| 2505 | // callbacks posted from other documents more per spec? | |||
| 2506 | // | |||
| 2507 | // If we do that we also need to tweak the throttling code to not set | |||
| 2508 | // mNeedToRunFrameRequestCallbacks unnecessarily... Check what other engines | |||
| 2509 | // do too. | |||
| 2510 | return aDoc->HasFrameRequestCallbacks() && | |||
| 2511 | aDoc->ShouldFireFrameRequestCallbacks(); | |||
| 2512 | }; | |||
| 2513 | if (ShouldCollect(mPresContext->Document())) { | |||
| 2514 | docs.AppendElement(mPresContext->Document()); | |||
| 2515 | } | |||
| 2516 | mPresContext->Document()->CollectDescendantDocuments(docs, ShouldCollect); | |||
| 2517 | // Skip throttled docs if it's not time to un-throttle them yet. | |||
| 2518 | if (!tickThrottledFrameRequests) { | |||
| 2519 | const size_t sizeBefore = docs.Length(); | |||
| 2520 | docs.RemoveElementsBy( | |||
| 2521 | [](Document* aDoc) { return aDoc->ShouldThrottleFrameRequests(); }); | |||
| 2522 | if (sizeBefore != docs.Length()) { | |||
| 2523 | // FIXME(emilio): It's a bit subtle to just set this to true here, but | |||
| 2524 | // matches pre-existing behavior for throttled docs. It seems at least we | |||
| 2525 | // should EnsureTimerStarted too? But that kinda defeats the throttling, a | |||
| 2526 | // little bit? For now, preserve behavior. | |||
| 2527 | mNeedToRunFrameRequestCallbacks = true; | |||
| 2528 | } | |||
| 2529 | } | |||
| 2530 | ||||
| 2531 | if (docs.IsEmpty()) { | |||
| 2532 | return; | |||
| 2533 | } | |||
| 2534 | ||||
| 2535 | RunVideoFrameCallbacks(docs, aNowTime); | |||
| 2536 | RunFrameRequestCallbacks(docs, aNowTime); | |||
| 2537 | } | |||
| 2538 | ||||
| 2539 | static StaticAutoPtr<AutoTArray<RefPtr<Task>, 8>> sPendingIdleTasks; | |||
| 2540 | ||||
| 2541 | void nsRefreshDriver::DispatchIdleTaskAfterTickUnlessExists(Task* aTask) { | |||
| 2542 | if (!sPendingIdleTasks) { | |||
| 2543 | sPendingIdleTasks = new AutoTArray<RefPtr<Task>, 8>(); | |||
| 2544 | } else { | |||
| 2545 | if (sPendingIdleTasks->Contains(aTask)) { | |||
| 2546 | return; | |||
| 2547 | } | |||
| 2548 | } | |||
| 2549 | ||||
| 2550 | sPendingIdleTasks->AppendElement(aTask); | |||
| 2551 | } | |||
| 2552 | ||||
| 2553 | void nsRefreshDriver::CancelIdleTask(Task* aTask) { | |||
| 2554 | if (!sPendingIdleTasks) { | |||
| 2555 | return; | |||
| 2556 | } | |||
| 2557 | ||||
| 2558 | sPendingIdleTasks->RemoveElement(aTask); | |||
| 2559 | ||||
| 2560 | if (sPendingIdleTasks->IsEmpty()) { | |||
| 2561 | sPendingIdleTasks = nullptr; | |||
| 2562 | } | |||
| 2563 | } | |||
| 2564 | ||||
| 2565 | bool nsRefreshDriver::TickObserverArray(uint32_t aIdx, TimeStamp aNowTime) { | |||
| 2566 | MOZ_ASSERT(aIdx < std::size(mObservers))do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIdx < std::size(mObservers))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aIdx < std::size(mObservers )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aIdx < std::size(mObservers)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2566); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIdx < std::size(mObservers)" ")"); do { *((volatile int*)__null) = 2566; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 2567 | for (RefPtr<nsARefreshObserver> obs : mObservers[aIdx].EndLimitedRange()) { | |||
| 2568 | obs->WillRefresh(aNowTime); | |||
| 2569 | ||||
| 2570 | if (!mPresContext || !mPresContext->GetPresShell()) { | |||
| 2571 | return false; | |||
| 2572 | } | |||
| 2573 | } | |||
| 2574 | return true; | |||
| 2575 | } | |||
| 2576 | ||||
| 2577 | void nsRefreshDriver::Tick(VsyncId aId, TimeStamp aNowTime, | |||
| 2578 | IsExtraTick aIsExtraTick /* = No */) { | |||
| 2579 | MOZ_ASSERT(!nsContentUtils::GetCurrentJSContext(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!nsContentUtils::GetCurrentJSContext())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!nsContentUtils::GetCurrentJSContext()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!nsContentUtils::GetCurrentJSContext()" " (" "Shouldn't have a JSContext on the stack" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2580); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!nsContentUtils::GetCurrentJSContext()" ") (" "Shouldn't have a JSContext on the stack" ")"); do { * ((volatile int*)__null) = 2580; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) | |||
| 2580 | "Shouldn't have a JSContext on the stack")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!nsContentUtils::GetCurrentJSContext())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!nsContentUtils::GetCurrentJSContext()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!nsContentUtils::GetCurrentJSContext()" " (" "Shouldn't have a JSContext on the stack" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2580); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!nsContentUtils::GetCurrentJSContext()" ") (" "Shouldn't have a JSContext on the stack" ")"); do { * ((volatile int*)__null) = 2580; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); | |||
| 2581 | ||||
| 2582 | // We're either frozen or we were disconnected (likely in the middle | |||
| 2583 | // of a tick iteration). Just do nothing here, since our | |||
| 2584 | // prescontext went away. | |||
| 2585 | if (IsFrozen() || !mPresContext) { | |||
| 2586 | return; | |||
| 2587 | } | |||
| 2588 | ||||
| 2589 | // We can have a race condition where the vsync timestamp | |||
| 2590 | // is before the most recent refresh due to a forced refresh. | |||
| 2591 | // The underlying assumption is that the refresh driver tick can only | |||
| 2592 | // go forward in time, not backwards. To prevent the refresh | |||
| 2593 | // driver from going back in time, just skip this tick and | |||
| 2594 | // wait until the next tick. | |||
| 2595 | // If this is an 'extra' tick, then we expect it to be using the same | |||
| 2596 | // vsync id and timestamp as the original tick, so also allow those. | |||
| 2597 | if ((aNowTime <= mMostRecentRefresh) && !mTestControllingRefreshes && | |||
| 2598 | aIsExtraTick == IsExtraTick::No) { | |||
| 2599 | return; | |||
| 2600 | } | |||
| 2601 | auto cleanupInExtraTick = MakeScopeExit([&] { mInNormalTick = false; }); | |||
| 2602 | mInNormalTick = aIsExtraTick != IsExtraTick::Yes; | |||
| 2603 | ||||
| 2604 | bool isPresentingInVR = false; | |||
| 2605 | #if defined(MOZ_WIDGET_ANDROID) | |||
| 2606 | isPresentingInVR = gfx::VRManagerChild::IsPresenting(); | |||
| 2607 | #endif // defined(MOZ_WIDGET_ANDROID) | |||
| 2608 | ||||
| 2609 | if (!isPresentingInVR && IsWaitingForPaint(aNowTime)) { | |||
| 2610 | // In immersive VR mode, we do not get notifications when frames are | |||
| 2611 | // presented, so we do not wait for the compositor in that mode. | |||
| 2612 | ||||
| 2613 | // We're currently suspended waiting for earlier Tick's to | |||
| 2614 | // be completed (on the Compositor). Mark that we missed the paint | |||
| 2615 | // and keep waiting. | |||
| 2616 | PROFILER_MARKER_UNTYPED(do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick waiting for paint", ::geckoprofiler::category ::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext ))); } } while (false); } while (false) | |||
| 2617 | "RefreshDriverTick waiting for paint", GRAPHICS,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick waiting for paint", ::geckoprofiler::category ::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext ))); } } while (false); } while (false) | |||
| 2618 | MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext)))do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick waiting for paint", ::geckoprofiler::category ::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext ))); } } while (false); } while (false); | |||
| 2619 | return; | |||
| 2620 | } | |||
| 2621 | ||||
| 2622 | const TimeStamp previousRefresh = mMostRecentRefresh; | |||
| 2623 | mMostRecentRefresh = aNowTime; | |||
| 2624 | ||||
| 2625 | if (mRootRefresh) { | |||
| 2626 | mRootRefresh->RemoveRefreshObserver(this, FlushType::Style); | |||
| 2627 | mRootRefresh = nullptr; | |||
| 2628 | } | |||
| 2629 | mSkippedPaints = false; | |||
| 2630 | ||||
| 2631 | RefPtr<PresShell> presShell = mPresContext->GetPresShell(); | |||
| 2632 | if (!presShell) { | |||
| 2633 | StopTimer(); | |||
| 2634 | return; | |||
| 2635 | } | |||
| 2636 | ||||
| 2637 | TickReasons tickReasons = GetReasonsToTick(); | |||
| 2638 | if (tickReasons == TickReasons::eNone) { | |||
| 2639 | // We no longer have any observers. | |||
| 2640 | // Discard composition payloads because there is no paint. | |||
| 2641 | mCompositionPayloads.Clear(); | |||
| 2642 | ||||
| 2643 | // We don't want to stop the timer when observers are initially | |||
| 2644 | // removed, because sometimes observers can be added and removed | |||
| 2645 | // often depending on what other things are going on and in that | |||
| 2646 | // situation we don't want to thrash our timer. So instead we | |||
| 2647 | // wait until we get a Notify() call when we have no observers | |||
| 2648 | // before stopping the timer. | |||
| 2649 | // On top level content pages keep the timer running initially so that we | |||
| 2650 | // paint the page soon enough. | |||
| 2651 | if (ShouldKeepTimerRunningWhileWaitingForFirstContentfulPaint()) { | |||
| 2652 | PROFILER_MARKER(do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick waiting for first contentful paint", ::geckoprofiler ::category::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell (mPresContext)), ::geckoprofiler::markers::Tracing{}, "Paint" ); } } while (false); } while (false) | |||
| 2653 | "RefreshDriverTick waiting for first contentful paint", GRAPHICS,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick waiting for first contentful paint", ::geckoprofiler ::category::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell (mPresContext)), ::geckoprofiler::markers::Tracing{}, "Paint" ); } } while (false); } while (false) | |||
| 2654 | MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext)), Tracing,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick waiting for first contentful paint", ::geckoprofiler ::category::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell (mPresContext)), ::geckoprofiler::markers::Tracing{}, "Paint" ); } } while (false); } while (false) | |||
| 2655 | "Paint")do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick waiting for first contentful paint", ::geckoprofiler ::category::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell (mPresContext)), ::geckoprofiler::markers::Tracing{}, "Paint" ); } } while (false); } while (false); | |||
| 2656 | } else if (ShouldKeepTimerRunningAfterPageLoad()) { | |||
| 2657 | PROFILER_MARKER(do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick after page load", ::geckoprofiler::category ::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext )), ::geckoprofiler::markers::Tracing{}, "Paint"); } } while ( false); } while (false) | |||
| 2658 | "RefreshDriverTick after page load", GRAPHICS,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick after page load", ::geckoprofiler::category ::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext )), ::geckoprofiler::markers::Tracing{}, "Paint"); } } while ( false); } while (false) | |||
| 2659 | MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext)), Tracing,do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick after page load", ::geckoprofiler::category ::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext )), ::geckoprofiler::markers::Tracing{}, "Paint"); } } while ( false); } while (false) | |||
| 2660 | "Paint")do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("RefreshDriverTick after page load", ::geckoprofiler::category ::GRAPHICS, MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext )), ::geckoprofiler::markers::Tracing{}, "Paint"); } } while ( false); } while (false); | |||
| 2661 | } else { | |||
| 2662 | StopTimer(); | |||
| 2663 | } | |||
| 2664 | return; | |||
| 2665 | } | |||
| 2666 | ||||
| 2667 | if (StaticPrefs::layout_skip_ticks_while_page_suspended()) { | |||
| 2668 | Document* doc = mPresContext->Document(); | |||
| 2669 | nsPIDOMWindowInner* win = doc ? doc->GetInnerWindow() : nullptr; | |||
| 2670 | // Synchronous DOM operations mark the document being in such. Window's | |||
| 2671 | // suspend can be used also by external code. So we check here them both | |||
| 2672 | // in order to limit rAF skipping to only those synchronous DOM APIs which | |||
| 2673 | // also suspend window. | |||
| 2674 | if (win && win->IsSuspended() && doc->IsInSyncOperation()) { | |||
| 2675 | return; | |||
| 2676 | } | |||
| 2677 | } | |||
| 2678 | ||||
| 2679 | AUTO_PROFILER_LABEL_RELEVANT_FOR_JS("RefreshDriver tick", LAYOUT)mozilla::AutoProfilerLabel raiiObject2679( "RefreshDriver tick" , nullptr, JS::ProfilingCategoryPair::LAYOUT, uint32_t(js::ProfilingStackFrame ::Flags::RELEVANT_FOR_JS)); | |||
| 2680 | ||||
| 2681 | nsAutoCString profilerStr; | |||
| 2682 | if (profiler_thread_is_being_profiled_for_markers()) { | |||
| 2683 | profilerStr.AppendLiteral("Tick reasons:"); | |||
| 2684 | AppendTickReasonsToString(tickReasons, profilerStr); | |||
| 2685 | } | |||
| 2686 | AUTO_PROFILER_MARKER_TEXT(AutoProfilerTextMarker raiiObject2691( "RefreshDriverTick", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerStack ::TakeBacktrace(std::move(mRefreshTimerStartedCause)), MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext))), profilerStr) | |||
| 2687 | "RefreshDriverTick", GRAPHICS,AutoProfilerTextMarker raiiObject2691( "RefreshDriverTick", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerStack ::TakeBacktrace(std::move(mRefreshTimerStartedCause)), MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext))), profilerStr) | |||
| 2688 | MarkerOptions(AutoProfilerTextMarker raiiObject2691( "RefreshDriverTick", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerStack ::TakeBacktrace(std::move(mRefreshTimerStartedCause)), MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext))), profilerStr) | |||
| 2689 | MarkerStack::TakeBacktrace(std::move(mRefreshTimerStartedCause)),AutoProfilerTextMarker raiiObject2691( "RefreshDriverTick", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerStack ::TakeBacktrace(std::move(mRefreshTimerStartedCause)), MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext))), profilerStr) | |||
| 2690 | MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext))),AutoProfilerTextMarker raiiObject2691( "RefreshDriverTick", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerStack ::TakeBacktrace(std::move(mRefreshTimerStartedCause)), MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext))), profilerStr) | |||
| 2691 | profilerStr)AutoProfilerTextMarker raiiObject2691( "RefreshDriverTick", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerStack ::TakeBacktrace(std::move(mRefreshTimerStartedCause)), MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext))), profilerStr); | |||
| 2692 | ||||
| 2693 | mResizeSuppressed = false; | |||
| 2694 | ||||
| 2695 | bool oldInRefresh = mInRefresh; | |||
| 2696 | auto restoreInRefresh = MakeScopeExit([&] { mInRefresh = oldInRefresh; }); | |||
| 2697 | mInRefresh = true; | |||
| 2698 | ||||
| 2699 | AutoRestore<TimeStamp> restoreTickStart(mTickStart); | |||
| 2700 | mTickStart = TimeStamp::Now(); | |||
| 2701 | mTickVsyncId = aId; | |||
| 2702 | mTickVsyncTime = aNowTime; | |||
| 2703 | ||||
| 2704 | gfxPlatform::GetPlatform()->SchedulePaintIfDeviceReset(); | |||
| 2705 | ||||
| 2706 | FlushForceNotifyContentfulPaintPresContext(); | |||
| 2707 | ||||
| 2708 | AutoTArray<nsCOMPtr<nsIRunnable>, 16> earlyRunners = std::move(mEarlyRunners); | |||
| 2709 | for (auto& runner : earlyRunners) { | |||
| 2710 | runner->Run(); | |||
| 2711 | // Early runners might destroy this pres context. | |||
| 2712 | if (!mPresContext || !mPresContext->GetPresShell()) { | |||
| 2713 | return StopTimer(); | |||
| 2714 | } | |||
| 2715 | } | |||
| 2716 | ||||
| 2717 | // Dispatch coalesced input events. | |||
| 2718 | if (!TickObserverArray(0, aNowTime)) { | |||
| 2719 | return StopTimer(); | |||
| 2720 | } | |||
| 2721 | ||||
| 2722 | // Notify style flush observers. | |||
| 2723 | if (!TickObserverArray(1, aNowTime)) { | |||
| 2724 | return StopTimer(); | |||
| 2725 | } | |||
| 2726 | ||||
| 2727 | // Check if running the microtask checkpoint above caused the pres context to | |||
| 2728 | // be destroyed. | |||
| 2729 | if (!mPresContext || !mPresContext->GetPresShell()) { | |||
| 2730 | return StopTimer(); | |||
| 2731 | } | |||
| 2732 | ||||
| 2733 | // Step 7. For each doc of docs, flush autofocus candidates for doc if its | |||
| 2734 | // node navigable is a top-level traversable. | |||
| 2735 | FlushAutoFocusDocuments(); | |||
| 2736 | ||||
| 2737 | // Step 8. For each doc of docs, run the resize steps for doc. | |||
| 2738 | DispatchResizeEvents(); | |||
| 2739 | DispatchVisualViewportResizeEvents(); | |||
| 2740 | ||||
| 2741 | // Step 9. For each doc of docs, run the scroll steps for doc. | |||
| 2742 | DispatchScrollEvents(); | |||
| 2743 | DispatchVisualViewportScrollEvents(); | |||
| 2744 | DispatchScrollEndEvents(); | |||
| 2745 | ||||
| 2746 | // Step 10. For each doc of docs, evaluate media queries and report changes | |||
| 2747 | // for doc. | |||
| 2748 | EvaluateMediaQueriesAndReportChanges(); | |||
| 2749 | ||||
| 2750 | // Step 11. For each doc of docs, update animations and send events for doc. | |||
| 2751 | UpdateAnimationsAndSendEvents(); | |||
| 2752 | ||||
| 2753 | // Step 12. For each doc of docs, run the fullscreen steps for doc. | |||
| 2754 | RunFullscreenSteps(); | |||
| 2755 | ||||
| 2756 | // TODO: Step 13. For each doc of docs, if the user agent detects that the | |||
| 2757 | // backing storage associated with a CanvasRenderingContext2D or an | |||
| 2758 | // OffscreenCanvasRenderingContext2D, context, has been lost, then it must run | |||
| 2759 | // the context lost steps for each such context. | |||
| 2760 | ||||
| 2761 | // Step 13.5. (https://wicg.github.io/video-rvfc/#video-rvfc-procedures): | |||
| 2762 | // | |||
| 2763 | // For each fully active Document in docs, for each associated video element | |||
| 2764 | // for that Document, run the video frame request callbacks passing now as | |||
| 2765 | // the timestamp. | |||
| 2766 | // | |||
| 2767 | // Step 14. For each doc of docs, run the animation frame callbacks for doc, | |||
| 2768 | // passing in the relative high resolution time given frameTimestamp and doc's | |||
| 2769 | // relevant global object as the timestamp. | |||
| 2770 | RunVideoAndFrameRequestCallbacks(aNowTime); | |||
| 2771 | ||||
| 2772 | MaybeIncreaseMeasuredTicksSinceLoading(); | |||
| 2773 | ||||
| 2774 | // Step 17. For each doc of docs, if the focused area of doc is not a | |||
| 2775 | // focusable area, then run the focusing steps for doc's viewport [..]. | |||
| 2776 | // | |||
| 2777 | // FIXME(emilio, bug 1788741): This should happen after resize observer | |||
| 2778 | // handling. Also, Step 16 is supposed to be what updates layout (as part of | |||
| 2779 | // ResizeObserver handling), not quite this. Try to consolidate it. | |||
| 2780 | FlushLayoutOnPendingDocsAndFixUpFocus(); | |||
| 2781 | ||||
| 2782 | if (!mPresContext || !mPresContext->GetPresShell()) { | |||
| 2783 | return StopTimer(); | |||
| 2784 | } | |||
| 2785 | ||||
| 2786 | // Recompute approximate frame visibility if it's necessary and enough time | |||
| 2787 | // has passed since the last time we did it. | |||
| 2788 | if (mNeedToRecomputeVisibility && !mThrottled && | |||
| 2789 | aNowTime >= mNextRecomputeVisibilityTick && | |||
| 2790 | !presShell->IsPaintingSuppressed()) { | |||
| 2791 | mNextRecomputeVisibilityTick = aNowTime + mMinRecomputeVisibilityInterval; | |||
| 2792 | mNeedToRecomputeVisibility = false; | |||
| 2793 | ||||
| 2794 | presShell->ScheduleApproximateFrameVisibilityUpdateNow(); | |||
| 2795 | } | |||
| 2796 | ||||
| 2797 | // Update any popups that may need to be moved or hidden due to their | |||
| 2798 | // anchor changing. | |||
| 2799 | if (nsXULPopupManager* pm = nsXULPopupManager::GetInstance()) { | |||
| 2800 | pm->UpdatePopupPositions(this); | |||
| 2801 | } | |||
| 2802 | ||||
| 2803 | // Update the relevancy of the content of any `content-visibility: auto` | |||
| 2804 | // elements. The specification says: "Specifically, such changes will | |||
| 2805 | // take effect between steps 13 and 14 of Update the Rendering step of | |||
| 2806 | // the Processing Model (between “run the animation frame callbacks” and | |||
| 2807 | // “run the update intersection observations steps”)." | |||
| 2808 | // https://drafts.csswg.org/css-contain/#cv-notes | |||
| 2809 | // | |||
| 2810 | // FIXME(emilio): There are more steps in between now, the content-visibility | |||
| 2811 | // stuff should probably be integrated into the HTML spec. | |||
| 2812 | UpdateRelevancyOfContentVisibilityAutoFrames(); | |||
| 2813 | ||||
| 2814 | // Step 16. | |||
| 2815 | DetermineProximityToViewportAndNotifyResizeObservers(); | |||
| 2816 | if (MOZ_UNLIKELY(!mPresContext || !mPresContext->GetPresShell())(__builtin_expect(!!(!mPresContext || !mPresContext->GetPresShell ()), 0))) { | |||
| 2817 | return StopTimer(); | |||
| 2818 | } | |||
| 2819 | ||||
| 2820 | // TODO(emilio): Step 17, focus fix-up should happen here. | |||
| 2821 | ||||
| 2822 | // Step 18: For each doc of docs, perform pending transition operations for | |||
| 2823 | // doc. | |||
| 2824 | PerformPendingViewTransitionOperations(); | |||
| 2825 | ||||
| 2826 | // Step 19. For each doc of docs, run the update intersection observations | |||
| 2827 | // steps for doc. | |||
| 2828 | UpdateIntersectionObservations(aNowTime); | |||
| 2829 | ||||
| 2830 | // Notify display flush observers (like a11y). | |||
| 2831 | if (!TickObserverArray(2, aNowTime)) { | |||
| 2832 | return StopTimer(); | |||
| 2833 | } | |||
| 2834 | ||||
| 2835 | UpdateAnimatedImages(previousRefresh, aNowTime); | |||
| 2836 | ||||
| 2837 | bool dispatchTasksAfterTick = false; | |||
| 2838 | if (mViewManagerFlushIsPending && !mThrottled) { | |||
| 2839 | nsCString transactionId; | |||
| 2840 | if (profiler_thread_is_being_profiled_for_markers()) { | |||
| 2841 | transactionId.AppendLiteral("Transaction ID: "); | |||
| 2842 | transactionId.AppendInt((uint64_t)mNextTransactionId); | |||
| 2843 | } | |||
| 2844 | AUTO_PROFILER_MARKER_TEXT(AutoProfilerTextMarker raiiObject2849( "ViewManagerFlush", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext)), MarkerStack::TakeBacktrace(std:: move(mViewManagerFlushCause))), transactionId) | |||
| 2845 | "ViewManagerFlush", GRAPHICS,AutoProfilerTextMarker raiiObject2849( "ViewManagerFlush", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext)), MarkerStack::TakeBacktrace(std:: move(mViewManagerFlushCause))), transactionId) | |||
| 2846 | MarkerOptions(AutoProfilerTextMarker raiiObject2849( "ViewManagerFlush", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext)), MarkerStack::TakeBacktrace(std:: move(mViewManagerFlushCause))), transactionId) | |||
| 2847 | MarkerInnerWindowIdFromDocShell(GetDocShell(mPresContext)),AutoProfilerTextMarker raiiObject2849( "ViewManagerFlush", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext)), MarkerStack::TakeBacktrace(std:: move(mViewManagerFlushCause))), transactionId) | |||
| 2848 | MarkerStack::TakeBacktrace(std::move(mViewManagerFlushCause))),AutoProfilerTextMarker raiiObject2849( "ViewManagerFlush", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext)), MarkerStack::TakeBacktrace(std:: move(mViewManagerFlushCause))), transactionId) | |||
| 2849 | transactionId)AutoProfilerTextMarker raiiObject2849( "ViewManagerFlush", :: mozilla::baseprofiler::category::GRAPHICS, MarkerOptions( MarkerInnerWindowIdFromDocShell (GetDocShell(mPresContext)), MarkerStack::TakeBacktrace(std:: move(mViewManagerFlushCause))), transactionId); | |||
| 2850 | ||||
| 2851 | // Forward our composition payloads to the layer manager. | |||
| 2852 | if (!mCompositionPayloads.IsEmpty()) { | |||
| 2853 | nsCOMPtr<nsIWidget> widget = mPresContext->GetRootWidget(); | |||
| 2854 | WindowRenderer* renderer = widget ? widget->GetWindowRenderer() : nullptr; | |||
| 2855 | if (renderer && renderer->AsWebRender()) { | |||
| 2856 | renderer->AsWebRender()->RegisterPayloads(mCompositionPayloads); | |||
| 2857 | } | |||
| 2858 | mCompositionPayloads.Clear(); | |||
| 2859 | } | |||
| 2860 | ||||
| 2861 | #ifdef MOZ_DUMP_PAINTING1 | |||
| 2862 | if (nsLayoutUtils::InvalidationDebuggingIsEnabled()) { | |||
| 2863 | printf_stderr("Starting ProcessPendingUpdates\n"); | |||
| 2864 | } | |||
| 2865 | #endif | |||
| 2866 | ||||
| 2867 | mViewManagerFlushIsPending = false; | |||
| 2868 | RefPtr<nsViewManager> vm = mPresContext->GetPresShell()->GetViewManager(); | |||
| 2869 | const bool skipPaint = isPresentingInVR; | |||
| 2870 | // Skip the paint in immersive VR mode because whatever we paint here will | |||
| 2871 | // not end up on the screen. The screen is displaying WebGL content from a | |||
| 2872 | // single canvas in that mode. | |||
| 2873 | if (!skipPaint) { | |||
| 2874 | PaintTelemetry::AutoRecordPaint record; | |||
| 2875 | vm->ProcessPendingUpdates(); | |||
| 2876 | } | |||
| 2877 | ||||
| 2878 | #ifdef MOZ_DUMP_PAINTING1 | |||
| 2879 | if (nsLayoutUtils::InvalidationDebuggingIsEnabled()) { | |||
| 2880 | printf_stderr("Ending ProcessPendingUpdates\n"); | |||
| 2881 | } | |||
| 2882 | #endif | |||
| 2883 | ||||
| 2884 | dispatchTasksAfterTick = true; | |||
| 2885 | mHasScheduleFlush = false; | |||
| 2886 | } else { | |||
| 2887 | // No paint happened, discard composition payloads. | |||
| 2888 | mCompositionPayloads.Clear(); | |||
| 2889 | } | |||
| 2890 | ||||
| 2891 | // This needs to happen after DL building since we rely on the raster scales | |||
| 2892 | // being stored in nsSubDocumentFrame. | |||
| 2893 | UpdateRemoteFrameEffects(); | |||
| 2894 | ||||
| 2895 | #ifndef ANDROID /* bug 1142079 */ | |||
| 2896 | double totalMs = (TimeStamp::Now() - mTickStart).ToMilliseconds(); | |||
| 2897 | mozilla::Telemetry::Accumulate(mozilla::Telemetry::REFRESH_DRIVER_TICK, | |||
| 2898 | static_cast<uint32_t>(totalMs)); | |||
| 2899 | #endif | |||
| 2900 | ||||
| 2901 | for (nsAPostRefreshObserver* observer : | |||
| 2902 | mPostRefreshObservers.ForwardRange()) { | |||
| 2903 | observer->DidRefresh(); | |||
| 2904 | } | |||
| 2905 | ||||
| 2906 | NS_ASSERTION(mInRefresh, "Still in refresh")do { if (!(mInRefresh)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Still in refresh" , "mInRefresh", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 2906); MOZ_PretendNoReturn(); } } while (0); | |||
| 2907 | ||||
| 2908 | if (mPresContext->IsRoot() && XRE_IsContentProcess() && | |||
| 2909 | StaticPrefs::gfx_content_always_paint()) { | |||
| 2910 | ScheduleViewManagerFlush(); | |||
| 2911 | } | |||
| 2912 | ||||
| 2913 | if (dispatchTasksAfterTick && sPendingIdleTasks) { | |||
| 2914 | UniquePtr<AutoTArray<RefPtr<Task>, 8>> tasks(sPendingIdleTasks.forget()); | |||
| 2915 | for (RefPtr<Task>& taskWithDelay : *tasks) { | |||
| 2916 | TaskController::Get()->AddTask(taskWithDelay.forget()); | |||
| 2917 | } | |||
| 2918 | } | |||
| 2919 | } | |||
| 2920 | ||||
| 2921 | void nsRefreshDriver::UpdateAnimatedImages(TimeStamp aPreviousRefresh, | |||
| 2922 | TimeStamp aNowTime) { | |||
| 2923 | if (mThrottled) { | |||
| 2924 | // Don't do this when throttled, as the compositor might be paused and we | |||
| 2925 | // don't want to queue a lot of paints, see bug 1828587. | |||
| 2926 | return; | |||
| 2927 | } | |||
| 2928 | // Perform notification to imgIRequests subscribed to listen for refresh | |||
| 2929 | // events. | |||
| 2930 | for (const auto& entry : mStartTable) { | |||
| 2931 | const uint32_t& delay = entry.GetKey(); | |||
| 2932 | ImageStartData* data = entry.GetWeak(); | |||
| 2933 | ||||
| 2934 | if (data->mEntries.IsEmpty()) { | |||
| 2935 | continue; | |||
| 2936 | } | |||
| 2937 | ||||
| 2938 | if (data->mStartTime) { | |||
| 2939 | TimeStamp& start = *data->mStartTime; | |||
| 2940 | ||||
| 2941 | if (aPreviousRefresh >= start && aNowTime >= start) { | |||
| 2942 | TimeDuration prev = aPreviousRefresh - start; | |||
| 2943 | TimeDuration curr = aNowTime - start; | |||
| 2944 | uint32_t prevMultiple = uint32_t(prev.ToMilliseconds()) / delay; | |||
| 2945 | ||||
| 2946 | // We want to trigger images' refresh if we've just crossed over a | |||
| 2947 | // multiple of the first image's start time. If so, set the animation | |||
| 2948 | // start time to the nearest multiple of the delay and move all the | |||
| 2949 | // images in this table to the main requests table. | |||
| 2950 | if (prevMultiple != uint32_t(curr.ToMilliseconds()) / delay) { | |||
| 2951 | mozilla::TimeStamp desired = | |||
| 2952 | start + TimeDuration::FromMilliseconds(prevMultiple * delay); | |||
| 2953 | BeginRefreshingImages(data->mEntries, desired); | |||
| 2954 | } | |||
| 2955 | } else { | |||
| 2956 | // Sometimes the start time can be in the future if we spin a nested | |||
| 2957 | // event loop and re-entrantly tick. In that case, setting the | |||
| 2958 | // animation start time to the start time seems like the least bad | |||
| 2959 | // thing we can do. | |||
| 2960 | mozilla::TimeStamp desired = start; | |||
| 2961 | BeginRefreshingImages(data->mEntries, desired); | |||
| 2962 | } | |||
| 2963 | } else { | |||
| 2964 | // This is the very first time we've drawn images with this time delay. | |||
| 2965 | // Set the animation start time to "now" and move all the images in this | |||
| 2966 | // table to the main requests table. | |||
| 2967 | mozilla::TimeStamp desired = aNowTime; | |||
| 2968 | BeginRefreshingImages(data->mEntries, desired); | |||
| 2969 | data->mStartTime.emplace(aNowTime); | |||
| 2970 | } | |||
| 2971 | } | |||
| 2972 | ||||
| 2973 | if (!mRequests.IsEmpty()) { | |||
| 2974 | // RequestRefresh may run scripts, so it's not safe to directly call it | |||
| 2975 | // while using a hashtable enumerator to enumerate mRequests in case | |||
| 2976 | // script modifies the hashtable. Instead, we build a (local) array of | |||
| 2977 | // images to refresh, and then we refresh each image in that array. | |||
| 2978 | nsTArray<nsCOMPtr<imgIContainer>> imagesToRefresh(mRequests.Count()); | |||
| 2979 | ||||
| 2980 | for (const auto& req : mRequests) { | |||
| 2981 | nsCOMPtr<imgIContainer> image; | |||
| 2982 | if (NS_SUCCEEDED(req->GetImage(getter_AddRefs(image)))((bool)(__builtin_expect(!!(!NS_FAILED_impl(req->GetImage( getter_AddRefs(image)))), 1)))) { | |||
| 2983 | imagesToRefresh.AppendElement(image.forget()); | |||
| 2984 | } | |||
| 2985 | } | |||
| 2986 | ||||
| 2987 | for (const auto& image : imagesToRefresh) { | |||
| 2988 | image->RequestRefresh(aNowTime); | |||
| 2989 | } | |||
| 2990 | } | |||
| 2991 | } | |||
| 2992 | ||||
| 2993 | void nsRefreshDriver::BeginRefreshingImages(RequestTable& aEntries, | |||
| 2994 | mozilla::TimeStamp aDesired) { | |||
| 2995 | for (const auto& req : aEntries) { | |||
| 2996 | mRequests.Insert(req); | |||
| 2997 | ||||
| 2998 | nsCOMPtr<imgIContainer> image; | |||
| 2999 | if (NS_SUCCEEDED(req->GetImage(getter_AddRefs(image)))((bool)(__builtin_expect(!!(!NS_FAILED_impl(req->GetImage( getter_AddRefs(image)))), 1)))) { | |||
| 3000 | image->SetAnimationStartTime(aDesired); | |||
| 3001 | } | |||
| 3002 | } | |||
| 3003 | aEntries.Clear(); | |||
| 3004 | } | |||
| 3005 | ||||
| 3006 | void nsRefreshDriver::Freeze() { | |||
| 3007 | StopTimer(); | |||
| 3008 | mFreezeCount++; | |||
| 3009 | } | |||
| 3010 | ||||
| 3011 | void nsRefreshDriver::Thaw() { | |||
| 3012 | NS_ASSERTION(mFreezeCount > 0, "Thaw() called on an unfrozen refresh driver")do { if (!(mFreezeCount > 0)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Thaw() called on an unfrozen refresh driver", "mFreezeCount > 0" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3012); MOZ_PretendNoReturn(); } } while (0); | |||
| 3013 | ||||
| 3014 | if (mFreezeCount > 0) { | |||
| 3015 | mFreezeCount--; | |||
| 3016 | } | |||
| 3017 | ||||
| 3018 | if (mFreezeCount == 0 && HasReasonsToTick()) { | |||
| 3019 | // FIXME: This isn't quite right, since our EnsureTimerStarted call | |||
| 3020 | // updates our mMostRecentRefresh, but the DoRefresh call won't run | |||
| 3021 | // and notify our observers until we get back to the event loop. | |||
| 3022 | // Thus MostRecentRefresh() will lie between now and the DoRefresh. | |||
| 3023 | RefPtr<nsRunnableMethod<nsRefreshDriver>> event = NewRunnableMethod( | |||
| 3024 | "nsRefreshDriver::DoRefresh", this, &nsRefreshDriver::DoRefresh); | |||
| 3025 | if (nsPresContext* pc = GetPresContext()) { | |||
| 3026 | pc->Document()->Dispatch(event.forget()); | |||
| 3027 | EnsureTimerStarted(); | |||
| 3028 | } else { | |||
| 3029 | NS_ERROR("Thawing while document is being destroyed")do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Thawing while document is being destroyed" , "Error", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3029); MOZ_PretendNoReturn(); } while (0); | |||
| 3030 | } | |||
| 3031 | } | |||
| 3032 | } | |||
| 3033 | ||||
| 3034 | void nsRefreshDriver::FinishedWaitingForTransaction() { | |||
| 3035 | if (mSkippedPaints && !IsInRefresh() && HasReasonsToTick() && | |||
| 3036 | CanDoCatchUpTick()) { | |||
| 3037 | NS_DispatchToCurrentThreadQueue( | |||
| 3038 | NS_NewRunnableFunction( | |||
| 3039 | "nsRefreshDriver::FinishedWaitingForTransaction", | |||
| 3040 | [self = RefPtr{this}]() { | |||
| 3041 | if (self->CanDoCatchUpTick()) { | |||
| 3042 | self->Tick(self->mActiveTimer->MostRecentRefreshVsyncId(), | |||
| 3043 | self->mActiveTimer->MostRecentRefresh()); | |||
| 3044 | } | |||
| 3045 | }), | |||
| 3046 | EventQueuePriority::Vsync); | |||
| 3047 | } | |||
| 3048 | mWaitingForTransaction = false; | |||
| 3049 | mSkippedPaints = false; | |||
| 3050 | } | |||
| 3051 | ||||
| 3052 | mozilla::layers::TransactionId nsRefreshDriver::GetTransactionId( | |||
| 3053 | bool aThrottle) { | |||
| 3054 | mNextTransactionId = mNextTransactionId.Next(); | |||
| 3055 | LOG("[%p] Allocating transaction id %" PRIu64"l" "u", this, mNextTransactionId.mId); | |||
| 3056 | ||||
| 3057 | // If this a paint from within a normal tick, and the caller hasn't explicitly | |||
| 3058 | // asked for it to skip being throttled, then record this transaction as | |||
| 3059 | // pending and maybe disable painting until some transactions are processed. | |||
| 3060 | if (aThrottle && mInNormalTick) { | |||
| 3061 | mPendingTransactions.AppendElement(mNextTransactionId); | |||
| 3062 | if (TooManyPendingTransactions() && !mWaitingForTransaction && | |||
| 3063 | !mTestControllingRefreshes) { | |||
| 3064 | LOG("[%p] Hit max pending transaction limit, entering wait mode", this); | |||
| 3065 | mWaitingForTransaction = true; | |||
| 3066 | mSkippedPaints = false; | |||
| 3067 | } | |||
| 3068 | } | |||
| 3069 | ||||
| 3070 | return mNextTransactionId; | |||
| 3071 | } | |||
| 3072 | ||||
| 3073 | mozilla::layers::TransactionId nsRefreshDriver::LastTransactionId() const { | |||
| 3074 | return mNextTransactionId; | |||
| 3075 | } | |||
| 3076 | ||||
| 3077 | void nsRefreshDriver::RevokeTransactionId( | |||
| 3078 | mozilla::layers::TransactionId aTransactionId) { | |||
| 3079 | MOZ_ASSERT(aTransactionId == mNextTransactionId)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aTransactionId == mNextTransactionId)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aTransactionId == mNextTransactionId ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aTransactionId == mNextTransactionId", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3079); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aTransactionId == mNextTransactionId" ")"); do { *((volatile int*)__null) = 3079; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3080 | LOG("[%p] Revoking transaction id %" PRIu64"l" "u", this, aTransactionId.mId); | |||
| 3081 | if (AtPendingTransactionLimit() && | |||
| 3082 | mPendingTransactions.Contains(aTransactionId) && mWaitingForTransaction) { | |||
| 3083 | LOG("[%p] No longer over pending transaction limit, leaving wait state", | |||
| 3084 | this); | |||
| 3085 | MOZ_ASSERT(!mSkippedPaints,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mSkippedPaints)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mSkippedPaints))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mSkippedPaints" " (" "How did we skip a paint when we're in the middle of one?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3086); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mSkippedPaints" ") (" "How did we skip a paint when we're in the middle of one?" ")"); do { *((volatile int*)__null) = 3086; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | |||
| 3086 | "How did we skip a paint when we're in the middle of one?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mSkippedPaints)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mSkippedPaints))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mSkippedPaints" " (" "How did we skip a paint when we're in the middle of one?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3086); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mSkippedPaints" ") (" "How did we skip a paint when we're in the middle of one?" ")"); do { *((volatile int*)__null) = 3086; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3087 | FinishedWaitingForTransaction(); | |||
| 3088 | } | |||
| 3089 | ||||
| 3090 | // Notify the pres context so that it can deliver MozAfterPaint for this | |||
| 3091 | // id if any caller was expecting it. | |||
| 3092 | nsPresContext* pc = GetPresContext(); | |||
| 3093 | if (pc) { | |||
| 3094 | pc->NotifyRevokingDidPaint(aTransactionId); | |||
| 3095 | } | |||
| 3096 | // Remove aTransactionId from the set of outstanding transactions since we're | |||
| 3097 | // no longer waiting on it to be completed, but don't revert | |||
| 3098 | // mNextTransactionId since we can't use the id again. | |||
| 3099 | mPendingTransactions.RemoveElement(aTransactionId); | |||
| 3100 | } | |||
| 3101 | ||||
| 3102 | void nsRefreshDriver::ClearPendingTransactions() { | |||
| 3103 | LOG("[%p] ClearPendingTransactions", this); | |||
| 3104 | mPendingTransactions.Clear(); | |||
| 3105 | mWaitingForTransaction = false; | |||
| 3106 | } | |||
| 3107 | ||||
| 3108 | void nsRefreshDriver::ResetInitialTransactionId( | |||
| 3109 | mozilla::layers::TransactionId aTransactionId) { | |||
| 3110 | mNextTransactionId = aTransactionId; | |||
| 3111 | } | |||
| 3112 | ||||
| 3113 | mozilla::TimeStamp nsRefreshDriver::GetTransactionStart() { return mTickStart; } | |||
| 3114 | ||||
| 3115 | VsyncId nsRefreshDriver::GetVsyncId() { return mTickVsyncId; } | |||
| 3116 | ||||
| 3117 | mozilla::TimeStamp nsRefreshDriver::GetVsyncStart() { return mTickVsyncTime; } | |||
| 3118 | ||||
| 3119 | void nsRefreshDriver::NotifyTransactionCompleted( | |||
| 3120 | mozilla::layers::TransactionId aTransactionId) { | |||
| 3121 | LOG("[%p] Completed transaction id %" PRIu64"l" "u", this, aTransactionId.mId); | |||
| 3122 | mPendingTransactions.RemoveElement(aTransactionId); | |||
| 3123 | if (mWaitingForTransaction && !TooManyPendingTransactions()) { | |||
| 3124 | LOG("[%p] No longer over pending transaction limit, leaving wait state", | |||
| 3125 | this); | |||
| 3126 | FinishedWaitingForTransaction(); | |||
| 3127 | } | |||
| 3128 | } | |||
| 3129 | ||||
| 3130 | void nsRefreshDriver::WillRefresh(mozilla::TimeStamp aTime) { | |||
| 3131 | mRootRefresh->RemoveRefreshObserver(this, FlushType::Style); | |||
| 3132 | mRootRefresh = nullptr; | |||
| 3133 | if (mSkippedPaints) { | |||
| 3134 | DoRefresh(); | |||
| 3135 | } | |||
| 3136 | } | |||
| 3137 | ||||
| 3138 | bool nsRefreshDriver::IsWaitingForPaint(mozilla::TimeStamp aTime) { | |||
| 3139 | if (mTestControllingRefreshes) { | |||
| 3140 | return false; | |||
| 3141 | } | |||
| 3142 | ||||
| 3143 | if (mWaitingForTransaction) { | |||
| 3144 | LOG("[%p] Over max pending transaction limit when trying to paint, " | |||
| 3145 | "skipping", | |||
| 3146 | this); | |||
| 3147 | mSkippedPaints = true; | |||
| 3148 | return true; | |||
| 3149 | } | |||
| 3150 | ||||
| 3151 | // Try find the 'root' refresh driver for the current window and check | |||
| 3152 | // if that is waiting for a paint. | |||
| 3153 | nsPresContext* pc = GetPresContext(); | |||
| 3154 | nsPresContext* rootContext = pc ? pc->GetRootPresContext() : nullptr; | |||
| 3155 | if (rootContext) { | |||
| 3156 | nsRefreshDriver* rootRefresh = rootContext->RefreshDriver(); | |||
| 3157 | if (rootRefresh && rootRefresh != this) { | |||
| 3158 | if (rootRefresh->IsWaitingForPaint(aTime)) { | |||
| 3159 | if (mRootRefresh != rootRefresh) { | |||
| 3160 | if (mRootRefresh) { | |||
| 3161 | mRootRefresh->RemoveRefreshObserver(this, FlushType::Style); | |||
| 3162 | } | |||
| 3163 | rootRefresh->AddRefreshObserver(this, FlushType::Style, | |||
| 3164 | "Waiting for paint"); | |||
| 3165 | mRootRefresh = rootRefresh; | |||
| 3166 | } | |||
| 3167 | mSkippedPaints = true; | |||
| 3168 | return true; | |||
| 3169 | } | |||
| 3170 | } | |||
| 3171 | } | |||
| 3172 | return false; | |||
| 3173 | } | |||
| 3174 | ||||
| 3175 | void nsRefreshDriver::SetActivity(bool aIsActive) { | |||
| 3176 | const bool shouldThrottle = !aIsActive; | |||
| 3177 | if (mThrottled == shouldThrottle) { | |||
| 3178 | return; | |||
| 3179 | } | |||
| 3180 | mThrottled = shouldThrottle; | |||
| 3181 | if (mActiveTimer || GetReasonsToTick() != TickReasons::eNone) { | |||
| 3182 | // We want to switch our timer type here, so just stop and restart the | |||
| 3183 | // timer. | |||
| 3184 | EnsureTimerStarted(eForceAdjustTimer); | |||
| 3185 | } | |||
| 3186 | } | |||
| 3187 | ||||
| 3188 | nsPresContext* nsRefreshDriver::GetPresContext() const { return mPresContext; } | |||
| 3189 | ||||
| 3190 | void nsRefreshDriver::DoRefresh() { | |||
| 3191 | // Don't do a refresh unless we're in a state where we should be refreshing. | |||
| 3192 | if (!IsFrozen() && mPresContext && mActiveTimer) { | |||
| 3193 | DoTick(); | |||
| 3194 | } | |||
| 3195 | } | |||
| 3196 | ||||
| 3197 | #ifdef DEBUG1 | |||
| 3198 | bool nsRefreshDriver::IsRefreshObserver(nsARefreshObserver* aObserver, | |||
| 3199 | FlushType aFlushType) { | |||
| 3200 | ObserverArray& array = ArrayFor(aFlushType); | |||
| 3201 | return array.Contains(aObserver); | |||
| 3202 | } | |||
| 3203 | #endif | |||
| 3204 | ||||
| 3205 | void nsRefreshDriver::ScheduleViewManagerFlush() { | |||
| 3206 | NS_ASSERTION(mPresContext && mPresContext->IsRoot(),do { if (!(mPresContext && mPresContext->IsRoot()) ) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should only schedule view manager flush on root prescontexts" , "mPresContext && mPresContext->IsRoot()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3207); MOZ_PretendNoReturn(); } } while (0) | |||
| 3207 | "Should only schedule view manager flush on root prescontexts")do { if (!(mPresContext && mPresContext->IsRoot()) ) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should only schedule view manager flush on root prescontexts" , "mPresContext && mPresContext->IsRoot()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3207); MOZ_PretendNoReturn(); } } while (0); | |||
| 3208 | mViewManagerFlushIsPending = true; | |||
| 3209 | if (!mViewManagerFlushCause) { | |||
| 3210 | mViewManagerFlushCause = profiler_capture_backtrace(); | |||
| 3211 | } | |||
| 3212 | mHasScheduleFlush = true; | |||
| 3213 | EnsureTimerStarted(eNeverAdjustTimer); | |||
| 3214 | } | |||
| 3215 | ||||
| 3216 | void nsRefreshDriver::ScheduleFullscreenEvent( | |||
| 3217 | UniquePtr<PendingFullscreenEvent> aEvent) { | |||
| 3218 | mPendingFullscreenEvents.AppendElement(std::move(aEvent)); | |||
| 3219 | // make sure that the timer is running | |||
| 3220 | EnsureTimerStarted(); | |||
| 3221 | } | |||
| 3222 | ||||
| 3223 | void nsRefreshDriver::CancelPendingFullscreenEvents(Document* aDocument) { | |||
| 3224 | for (auto i : Reversed(IntegerRange(mPendingFullscreenEvents.Length()))) { | |||
| 3225 | if (mPendingFullscreenEvents[i]->Document() == aDocument) { | |||
| 3226 | mPendingFullscreenEvents.RemoveElementAt(i); | |||
| 3227 | } | |||
| 3228 | } | |||
| 3229 | } | |||
| 3230 | ||||
| 3231 | void nsRefreshDriver::CancelPendingAnimationEvents( | |||
| 3232 | AnimationEventDispatcher* aDispatcher) { | |||
| 3233 | MOZ_ASSERT(aDispatcher)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDispatcher)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDispatcher))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDispatcher", "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3233); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDispatcher" ")"); do { *((volatile int*)__null) = 3233; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3234 | aDispatcher->ClearEventQueue(); | |||
| 3235 | mAnimationEventFlushObservers.RemoveElement(aDispatcher); | |||
| 3236 | } | |||
| 3237 | ||||
| 3238 | /* static */ | |||
| 3239 | TimeStamp nsRefreshDriver::GetIdleDeadlineHint(TimeStamp aDefault, | |||
| 3240 | IdleCheck aCheckType) { | |||
| 3241 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3241); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 3241; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3242 | MOZ_ASSERT(!aDefault.IsNull())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aDefault.IsNull())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aDefault.IsNull()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aDefault.IsNull()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3242); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aDefault.IsNull()" ")"); do { *((volatile int*)__null) = 3242; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3243 | ||||
| 3244 | // For computing idleness of refresh drivers we only care about | |||
| 3245 | // sRegularRateTimerList, since we consider refresh drivers attached to | |||
| 3246 | // sThrottledRateTimer to be inactive. This implies that tasks | |||
| 3247 | // resulting from a tick on the sRegularRateTimer counts as being | |||
| 3248 | // busy but tasks resulting from a tick on sThrottledRateTimer | |||
| 3249 | // counts as being idle. | |||
| 3250 | if (sRegularRateTimer) { | |||
| 3251 | TimeStamp retVal = sRegularRateTimer->GetIdleDeadlineHint(aDefault); | |||
| 3252 | if (retVal != aDefault) { | |||
| 3253 | return retVal; | |||
| 3254 | } | |||
| 3255 | } | |||
| 3256 | ||||
| 3257 | TimeStamp hint = TimeStamp(); | |||
| 3258 | if (sRegularRateTimerList) { | |||
| 3259 | for (RefreshDriverTimer* timer : *sRegularRateTimerList) { | |||
| 3260 | TimeStamp newHint = timer->GetIdleDeadlineHint(aDefault); | |||
| 3261 | if (newHint < aDefault && (hint.IsNull() || newHint < hint)) { | |||
| 3262 | hint = newHint; | |||
| 3263 | } | |||
| 3264 | } | |||
| 3265 | } | |||
| 3266 | ||||
| 3267 | if (!hint.IsNull()) { | |||
| 3268 | return hint; | |||
| 3269 | } | |||
| 3270 | ||||
| 3271 | if (aCheckType == IdleCheck::AllVsyncListeners && XRE_IsParentProcess()) { | |||
| 3272 | Maybe<TimeDuration> maybeRate = | |||
| 3273 | mozilla::gfx::VsyncSource::GetFastestVsyncRate(); | |||
| 3274 | if (maybeRate.isSome()) { | |||
| 3275 | TimeDuration minIdlePeriod = | |||
| 3276 | TimeDuration::FromMilliseconds(StaticPrefs::idle_period_min()); | |||
| 3277 | TimeDuration layoutIdleLimit = TimeDuration::FromMilliseconds( | |||
| 3278 | StaticPrefs::layout_idle_period_time_limit()); | |||
| 3279 | TimeDuration rate = *maybeRate - layoutIdleLimit; | |||
| 3280 | ||||
| 3281 | // If the rate is very short, don't let it affect idle processing in the | |||
| 3282 | // parent process too much. | |||
| 3283 | rate = std::max(rate, minIdlePeriod + minIdlePeriod); | |||
| 3284 | ||||
| 3285 | TimeStamp newHint = TimeStamp::Now() + rate; | |||
| 3286 | if (newHint < aDefault) { | |||
| 3287 | return newHint; | |||
| 3288 | } | |||
| 3289 | } | |||
| 3290 | } | |||
| 3291 | ||||
| 3292 | return aDefault; | |||
| 3293 | } | |||
| 3294 | ||||
| 3295 | /* static */ | |||
| 3296 | Maybe<TimeStamp> nsRefreshDriver::GetNextTickHint() { | |||
| 3297 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3297); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 3297; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3298 | ||||
| 3299 | if (sRegularRateTimer) { | |||
| 3300 | return sRegularRateTimer->GetNextTickHint(); | |||
| 3301 | } | |||
| 3302 | ||||
| 3303 | Maybe<TimeStamp> hint = Nothing(); | |||
| 3304 | if (sRegularRateTimerList) { | |||
| 3305 | for (RefreshDriverTimer* timer : *sRegularRateTimerList) { | |||
| 3306 | if (Maybe<TimeStamp> newHint = timer->GetNextTickHint()) { | |||
| 3307 | if (!hint || newHint.value() < hint.value()) { | |||
| 3308 | hint = newHint; | |||
| 3309 | } | |||
| 3310 | } | |||
| 3311 | } | |||
| 3312 | } | |||
| 3313 | return hint; | |||
| 3314 | } | |||
| 3315 | ||||
| 3316 | /* static */ | |||
| 3317 | bool nsRefreshDriver::IsRegularRateTimerTicking() { | |||
| 3318 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3318); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 3318; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3319 | ||||
| 3320 | if (sRegularRateTimer) { | |||
| 3321 | if (sRegularRateTimer->IsTicking()) { | |||
| 3322 | return true; | |||
| 3323 | } | |||
| 3324 | } | |||
| 3325 | ||||
| 3326 | if (sRegularRateTimerList) { | |||
| 3327 | for (RefreshDriverTimer* timer : *sRegularRateTimerList) { | |||
| 3328 | if (timer->IsTicking()) { | |||
| 3329 | return true; | |||
| 3330 | } | |||
| 3331 | } | |||
| 3332 | } | |||
| 3333 | ||||
| 3334 | return false; | |||
| 3335 | } | |||
| 3336 | ||||
| 3337 | void nsRefreshDriver::Disconnect() { | |||
| 3338 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/base/nsRefreshDriver.cpp" , 3338); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 3338; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | |||
| 3339 | ||||
| 3340 | StopTimer(); | |||
| 3341 | ||||
| 3342 | mEarlyRunners.Clear(); | |||
| 3343 | ||||
| 3344 | if (mPresContext) { | |||
| 3345 | mPresContext = nullptr; | |||
| 3346 | if (--sRefreshDriverCount == 0) { | |||
| 3347 | Shutdown(); | |||
| 3348 | } | |||
| 3349 | } | |||
| 3350 | } | |||
| 3351 | ||||
| 3352 | #undef LOG |