2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali/internal/adaptor/common/combined-update-render-controller.h>
22 #include <dali/integration-api/platform-abstraction.h>
25 #include "dali/public-api/common/dali-common.h"
28 #include <dali/devel-api/adaptor-framework/thread-settings.h>
29 #include <dali/integration-api/adaptor-framework/trigger-event-factory.h>
30 #include <dali/internal/adaptor/common/adaptor-internal-services.h>
31 #include <dali/internal/adaptor/common/combined-update-render-controller-debug.h>
32 #include <dali/internal/graphics/common/graphics-interface.h>
33 #include <dali/internal/graphics/gles/egl-graphics.h>
34 #include <dali/internal/graphics/gles/egl-implementation.h>
35 #include <dali/internal/system/common/environment-options.h>
36 #include <dali/internal/system/common/time-service.h>
37 #include <dali/internal/window-system/common/window-impl.h>
47 const unsigned int CREATED_THREAD_COUNT = 1u;
49 const int CONTINUOUS = -1;
52 const unsigned int TRUE = 1u;
53 const unsigned int FALSE = 0u;
55 const unsigned int MILLISECONDS_PER_SECOND(1e+3);
56 const float NANOSECONDS_TO_SECOND(1e-9f);
57 const unsigned int NANOSECONDS_PER_SECOND(1e+9);
58 const unsigned int NANOSECONDS_PER_MILLISECOND(1e+6);
60 // The following values will get calculated at compile time
61 const float DEFAULT_FRAME_DURATION_IN_SECONDS(1.0f / 60.0f);
62 const uint64_t DEFAULT_FRAME_DURATION_IN_MILLISECONDS(DEFAULT_FRAME_DURATION_IN_SECONDS* MILLISECONDS_PER_SECOND);
63 const uint64_t DEFAULT_FRAME_DURATION_IN_NANOSECONDS(DEFAULT_FRAME_DURATION_IN_SECONDS* NANOSECONDS_PER_SECOND);
66 * Handles the use case when an update-request is received JUST before we process a sleep-request. If we did not have an update-request count then
67 * there is a danger that, on the event-thread we could have:
68 * 1) An update-request where we do nothing as Update/Render thread still running.
69 * 2) Quickly followed by a sleep-request being handled where we pause the Update/Render Thread (even though we have an update to process).
71 * Using a counter means we increment the counter on an update-request, and decrement it on a sleep-request. This handles the above scenario because:
72 * 1) MAIN THREAD: Update Request: COUNTER = 1
73 * 2) UPDATE/RENDER THREAD: Do Update/Render, then no Updates required -> Sleep Trigger
74 * 3) MAIN THREAD: Update Request: COUNTER = 2
75 * 4) MAIN THREAD: Sleep Request: COUNTER = 1 -> We do not sleep just yet
77 * Also ensures we preserve battery life by only doing ONE update when the above use case is not triggered.
78 * 1) MAIN THREAD: Update Request: COUNTER = 1
79 * 2) UPDATE/RENDER THREAD: Do Update/Render, then no Updates required -> Sleep Trigger
80 * 3) MAIN THREAD: Sleep Request: COUNTER = 0 -> Go to sleep
82 const unsigned int MAXIMUM_UPDATE_REQUESTS = 2;
83 } // unnamed namespace
85 ///////////////////////////////////////////////////////////////////////////////////////////////////
87 ///////////////////////////////////////////////////////////////////////////////////////////////////
89 CombinedUpdateRenderController::CombinedUpdateRenderController(AdaptorInternalServices& adaptorInterfaces, const EnvironmentOptions& environmentOptions, ThreadMode threadMode)
90 : mFpsTracker(environmentOptions),
91 mUpdateStatusLogger(environmentOptions),
92 mEventThreadSemaphore(0),
94 mUpdateRenderThreadWaitCondition(),
95 mAdaptorInterfaces(adaptorInterfaces),
96 mPerformanceInterface(adaptorInterfaces.GetPerformanceInterface()),
97 mCore(adaptorInterfaces.GetCore()),
98 mEnvironmentOptions(environmentOptions),
99 mNotificationTrigger(adaptorInterfaces.GetProcessCoreEventsTrigger()),
101 mPreRenderCallback(NULL),
102 mUpdateRenderThread(NULL),
103 mDefaultFrameDelta(0.0f),
104 mDefaultFrameDurationMilliseconds(0u),
105 mDefaultFrameDurationNanoseconds(0u),
106 mDefaultHalfFrameNanoseconds(0u),
107 mUpdateRequestCount(0u),
109 mThreadMode(threadMode),
110 mUpdateRenderRunCount(0),
111 mDestroyUpdateRenderThread(FALSE),
112 mUpdateRenderThreadCanSleep(FALSE),
113 mPendingRequestUpdate(FALSE),
114 mUseElapsedTimeAfterWait(FALSE),
116 mDeletedSurface(nullptr),
117 mPostRendering(FALSE),
120 mUploadWithoutRendering(FALSE),
121 mFirstFrameAfterResume(FALSE)
125 // Initialise frame delta/duration variables first
126 SetRenderRefreshRate(environmentOptions.GetRenderRefreshRate());
128 // Set the thread-synchronization interface on the render-surface
129 Dali::RenderSurfaceInterface* currentSurface = mAdaptorInterfaces.GetRenderSurfaceInterface();
132 currentSurface->SetThreadSynchronization(*this);
135 mSleepTrigger = TriggerEventFactory::CreateTriggerEvent(MakeCallback(this, &CombinedUpdateRenderController::ProcessSleepRequest), TriggerEventInterface::KEEP_ALIVE_AFTER_TRIGGER);
138 CombinedUpdateRenderController::~CombinedUpdateRenderController()
144 delete mPreRenderCallback;
145 delete mSleepTrigger;
148 void CombinedUpdateRenderController::Initialize()
152 // Ensure Update/Render Thread not already created
153 DALI_ASSERT_ALWAYS(!mUpdateRenderThread);
155 // Create Update/Render Thread
156 ConditionalWait::ScopedLock lock(mGraphicsInitializeWait);
157 mUpdateRenderThread = new pthread_t();
158 int error = pthread_create(mUpdateRenderThread, NULL, InternalUpdateRenderThreadEntryFunc, this);
159 DALI_ASSERT_ALWAYS(!error && "Return code from pthread_create() when creating UpdateRenderThread");
161 // The Update/Render thread will now run and initialise the graphics interface etc. and will then wait for Start to be called
162 // When this function returns, the application initialisation on the event thread should occur
165 void CombinedUpdateRenderController::Start()
169 DALI_ASSERT_ALWAYS(!mRunning && mUpdateRenderThread);
171 // Wait until all threads created in Initialise are up and running
172 for(unsigned int i = 0; i < CREATED_THREAD_COUNT; ++i)
174 mEventThreadSemaphore.Acquire();
179 LOG_EVENT("Startup Complete, starting Update/Render Thread");
181 RunUpdateRenderThread(CONTINUOUS, AnimationProgression::NONE, UpdateMode::NORMAL);
183 Dali::RenderSurfaceInterface* currentSurface = mAdaptorInterfaces.GetRenderSurfaceInterface();
186 currentSurface->StartRender();
189 DALI_LOG_RELEASE_INFO("CombinedUpdateRenderController::Start\n");
192 void CombinedUpdateRenderController::Pause()
198 PauseUpdateRenderThread();
200 AddPerformanceMarker(PerformanceInterface::PAUSED);
202 DALI_LOG_RELEASE_INFO("CombinedUpdateRenderController::Pause\n");
205 void CombinedUpdateRenderController::Resume()
209 if(!mRunning && IsUpdateRenderThreadPaused())
211 LOG_EVENT("Resuming");
213 RunUpdateRenderThread(CONTINUOUS, AnimationProgression::USE_ELAPSED_TIME, UpdateMode::NORMAL);
215 AddPerformanceMarker(PerformanceInterface::RESUME);
219 mFirstFrameAfterResume = TRUE;
221 DALI_LOG_RELEASE_INFO("CombinedUpdateRenderController::Resume\n");
225 DALI_LOG_RELEASE_INFO("CombinedUpdateRenderController::Resume: Already resumed [%d, %d, %d]\n", mRunning, mUpdateRenderRunCount, mUpdateRenderThreadCanSleep);
229 void CombinedUpdateRenderController::Stop()
233 // Stop Rendering and the Update/Render Thread
234 Dali::RenderSurfaceInterface* currentSurface = mAdaptorInterfaces.GetRenderSurfaceInterface();
237 currentSurface->StopRender();
240 StopUpdateRenderThread();
242 if(mUpdateRenderThread)
244 LOG_EVENT("Destroying UpdateRenderThread");
246 // wait for the thread to finish
247 pthread_join(*mUpdateRenderThread, NULL);
249 delete mUpdateRenderThread;
250 mUpdateRenderThread = NULL;
255 DALI_LOG_RELEASE_INFO("CombinedUpdateRenderController::Stop\n");
258 void CombinedUpdateRenderController::RequestUpdate()
262 // Increment the update-request count to the maximum
263 if(mUpdateRequestCount < MAXIMUM_UPDATE_REQUESTS)
265 ++mUpdateRequestCount;
268 if(mRunning && IsUpdateRenderThreadPaused())
270 LOG_EVENT("Processing");
272 RunUpdateRenderThread(CONTINUOUS, AnimationProgression::NONE, UpdateMode::NORMAL);
275 ConditionalWait::ScopedLock updateLock(mUpdateRenderThreadWaitCondition);
276 mPendingRequestUpdate = TRUE;
279 void CombinedUpdateRenderController::RequestUpdateOnce(UpdateMode updateMode)
281 // Increment the update-request count to the maximum
282 if(mUpdateRequestCount < MAXIMUM_UPDATE_REQUESTS)
284 ++mUpdateRequestCount;
287 if(IsUpdateRenderThreadPaused() || updateMode == UpdateMode::FORCE_RENDER)
291 // Run Update/Render once
292 RunUpdateRenderThread(ONCE, AnimationProgression::NONE, updateMode);
296 void CombinedUpdateRenderController::ReplaceSurface(Dali::RenderSurfaceInterface* newSurface)
300 if(mUpdateRenderThread)
302 // Set the ThreadSyncronizationInterface on the new surface
303 newSurface->SetThreadSynchronization(*this);
305 LOG_EVENT("Starting to replace the surface, event-thread blocked");
307 // Start replacing the surface.
309 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
310 mPostRendering = FALSE; // Clear the post-rendering flag as Update/Render thread will replace the surface now
311 mNewSurface = newSurface;
312 mUpdateRenderThreadWaitCondition.Notify(lock);
315 // Wait until the surface has been replaced
316 mSurfaceSemaphore.Acquire();
318 LOG_EVENT("Surface replaced, event-thread continuing");
322 void CombinedUpdateRenderController::DeleteSurface(Dali::RenderSurfaceInterface* surface)
326 if(mUpdateRenderThread)
328 LOG_EVENT("Starting to delete the surface, event-thread blocked");
330 // Start replacing the surface.
332 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
333 mPostRendering = FALSE; // Clear the post-rendering flag as Update/Render thread will delete the surface now
334 mDeletedSurface = surface;
335 mUpdateRenderThreadWaitCondition.Notify(lock);
338 // Wait until the surface has been deleted
339 mSurfaceSemaphore.Acquire();
341 LOG_EVENT("Surface deleted, event-thread continuing");
345 void CombinedUpdateRenderController::WaitForGraphicsInitialization()
347 ConditionalWait::ScopedLock lk(mGraphicsInitializeWait);
350 if(mUpdateRenderThread)
352 LOG_EVENT("Waiting for graphics initialisation, event-thread blocked");
354 // Wait until the graphics has been initialised
355 mGraphicsInitializeWait.Wait(lk);
357 LOG_EVENT("graphics initialised, event-thread continuing");
361 void CombinedUpdateRenderController::ResizeSurface()
365 LOG_EVENT("Resize the surface");
368 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
369 mPostRendering = FALSE; // Clear the post-rendering flag as Update/Render thread will resize the surface now
370 // Surface is resized and the surface resized count is increased.
372 mUpdateRenderThreadWaitCondition.Notify(lock);
376 void CombinedUpdateRenderController::SetRenderRefreshRate(unsigned int numberOfFramesPerRender)
378 // Not protected by lock, but written to rarely so not worth adding a lock when reading
379 mDefaultFrameDelta = numberOfFramesPerRender * DEFAULT_FRAME_DURATION_IN_SECONDS;
380 mDefaultFrameDurationMilliseconds = uint64_t(numberOfFramesPerRender) * DEFAULT_FRAME_DURATION_IN_MILLISECONDS;
381 mDefaultFrameDurationNanoseconds = uint64_t(numberOfFramesPerRender) * DEFAULT_FRAME_DURATION_IN_NANOSECONDS;
382 mDefaultHalfFrameNanoseconds = mDefaultFrameDurationNanoseconds / 2u;
384 LOG_EVENT("mDefaultFrameDelta(%.6f), mDefaultFrameDurationMilliseconds(%lld), mDefaultFrameDurationNanoseconds(%lld)", mDefaultFrameDelta, mDefaultFrameDurationMilliseconds, mDefaultFrameDurationNanoseconds);
387 void CombinedUpdateRenderController::SetPreRenderCallback(CallbackBase* callback)
390 LOG_EVENT("Set PreRender Callback");
392 ConditionalWait::ScopedLock updateLock(mUpdateRenderThreadWaitCondition);
393 if(mPreRenderCallback)
395 delete mPreRenderCallback;
397 mPreRenderCallback = callback;
400 void CombinedUpdateRenderController::AddSurface(Dali::RenderSurfaceInterface* surface)
403 LOG_EVENT("Surface is added");
404 if(mUpdateRenderThread)
406 // Set the ThreadSyncronizationInterface on the added surface
407 surface->SetThreadSynchronization(*this);
411 ///////////////////////////////////////////////////////////////////////////////////////////////////
413 ///////////////////////////////////////////////////////////////////////////////////////////////////
415 void CombinedUpdateRenderController::RunUpdateRenderThread(int numberOfCycles, AnimationProgression animationProgression, UpdateMode updateMode)
417 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
421 case ThreadMode::NORMAL:
423 mUpdateRenderRunCount = numberOfCycles;
424 mUseElapsedTimeAfterWait = (animationProgression == AnimationProgression::USE_ELAPSED_TIME);
427 case ThreadMode::RUN_IF_REQUESTED:
429 if(updateMode != UpdateMode::FORCE_RENDER)
431 // Render only if the update mode is FORCE_RENDER which means the application requests it.
432 // We don't want to awake the update thread.
436 mUpdateRenderRunCount++; // Increase the update request count
437 mUseElapsedTimeAfterWait = TRUE; // The elapsed time should be used. We want animations to proceed.
442 mUpdateRenderThreadCanSleep = FALSE;
443 mUploadWithoutRendering = (updateMode == UpdateMode::SKIP_RENDER);
444 LOG_COUNTER_EVENT("mUpdateRenderRunCount: %d, mUseElapsedTimeAfterWait: %d", mUpdateRenderRunCount, mUseElapsedTimeAfterWait);
445 mUpdateRenderThreadWaitCondition.Notify(lock);
448 void CombinedUpdateRenderController::PauseUpdateRenderThread()
450 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
451 mUpdateRenderRunCount = 0;
454 void CombinedUpdateRenderController::StopUpdateRenderThread()
456 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
457 mDestroyUpdateRenderThread = TRUE;
458 mUpdateRenderThreadWaitCondition.Notify(lock);
461 bool CombinedUpdateRenderController::IsUpdateRenderThreadPaused()
463 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
465 if(mThreadMode == ThreadMode::RUN_IF_REQUESTED)
467 return !mRunning || mUpdateRenderThreadCanSleep;
470 return (mUpdateRenderRunCount != CONTINUOUS) || // Report paused if NOT continuously running
471 mUpdateRenderThreadCanSleep; // Report paused if sleeping
474 void CombinedUpdateRenderController::ProcessSleepRequest()
478 // Decrement Update request count
479 if(mUpdateRequestCount > 0)
481 --mUpdateRequestCount;
484 // Can sleep if our update-request count is 0
485 // Update/Render thread can choose to carry on updating if it determines more update/renders are required
486 if(mUpdateRequestCount == 0)
488 LOG_EVENT("Going to sleep");
490 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
491 mUpdateRenderThreadCanSleep = TRUE;
495 ///////////////////////////////////////////////////////////////////////////////////////////////////
496 // UPDATE/RENDER THREAD
497 ///////////////////////////////////////////////////////////////////////////////////////////////////
499 void CombinedUpdateRenderController::UpdateRenderThread()
501 SetThreadName("RenderThread\0");
503 // Install a function for logging
504 mEnvironmentOptions.InstallLogFunction();
506 // Install a function for tracing
507 mEnvironmentOptions.InstallTraceFunction();
509 LOG_UPDATE_RENDER("THREAD CREATED");
511 // Initialize graphics
512 GraphicsInterface& graphics = mAdaptorInterfaces.GetGraphicsInterface();
513 graphics.Initialize();
515 Dali::DisplayConnection& displayConnection = mAdaptorInterfaces.GetDisplayConnectionInterface();
516 displayConnection.Initialize(); //@todo Move InitializeGraphics code into graphics implementation
518 NotifyGraphicsInitialised();
520 //@todo Vk swaps this around, but we need to support surfaceless context for multi-window
521 graphics.ConfigureSurface(mAdaptorInterfaces.GetRenderSurfaceInterface());
523 // Tell core it has a context
524 mCore.ContextCreated();
526 NotifyThreadInitialised();
529 uint64_t lastFrameTime;
530 TimeService::GetNanoseconds(lastFrameTime);
532 LOG_UPDATE_RENDER("THREAD INITIALISED");
534 bool useElapsedTime = true;
535 bool updateRequired = true;
536 uint64_t timeToSleepUntil = 0;
537 int extraFramesDropped = 0;
539 const unsigned int renderToFboInterval = mEnvironmentOptions.GetRenderToFboInterval();
540 const bool renderToFboEnabled = 0u != renderToFboInterval;
541 unsigned int frameCount = 0u;
543 while(UpdateRenderReady(useElapsedTime, updateRequired, timeToSleepUntil))
545 LOG_UPDATE_RENDER_TRACE;
548 bool uploadOnly = mUploadWithoutRendering;
549 unsigned int surfaceResized = mSurfaceResized;
551 // Performance statistics are logged upon a VSYNC tick so use this point for a VSync marker
552 AddPerformanceMarker(PerformanceInterface::VSYNC);
554 uint64_t currentFrameStartTime = 0;
555 TimeService::GetNanoseconds(currentFrameStartTime);
557 uint64_t timeSinceLastFrame = currentFrameStartTime - lastFrameTime;
559 // Optional FPS Tracking when continuously rendering
560 if(useElapsedTime && mFpsTracker.Enabled())
562 float absoluteTimeSinceLastRender = timeSinceLastFrame * NANOSECONDS_TO_SECOND;
563 mFpsTracker.Track(absoluteTimeSinceLastRender);
566 lastFrameTime = currentFrameStartTime; // Store frame start time
568 //////////////////////////////
570 //////////////////////////////
572 Dali::RenderSurfaceInterface* newSurface = ShouldSurfaceBeReplaced();
573 if(DALI_UNLIKELY(newSurface))
575 LOG_UPDATE_RENDER_TRACE_FMT("Replacing Surface");
576 // This is designed for replacing pixmap surfaces, but should work for window as well
577 // we need to delete the surface and renderable (pixmap / window)
578 // Then create a new pixmap/window and new surface
579 // If the new surface has a different display connection, then the context will be lost
580 mAdaptorInterfaces.GetDisplayConnectionInterface().Initialize();
581 graphics.ActivateSurfaceContext(newSurface);
582 // TODO: ReplaceGraphicsSurface doesn't work, InitializeGraphics()
583 // already creates new surface window, the surface and the context.
584 // We probably don't need ReplaceGraphicsSurface at all.
585 // newSurface->ReplaceGraphicsSurface();
589 const bool isRenderingToFbo = renderToFboEnabled && ((0u == frameCount) || (0u != frameCount % renderToFboInterval));
592 //////////////////////////////
594 //////////////////////////////
596 const unsigned int currentTime = currentFrameStartTime / NANOSECONDS_PER_MILLISECOND;
597 const unsigned int nextFrameTime = currentTime + mDefaultFrameDurationMilliseconds;
599 uint64_t noOfFramesSinceLastUpdate = 1;
600 float frameDelta = 0.0f;
603 if(mThreadMode == ThreadMode::RUN_IF_REQUESTED)
605 extraFramesDropped = 0;
606 while(timeSinceLastFrame >= mDefaultFrameDurationNanoseconds)
608 timeSinceLastFrame -= mDefaultFrameDurationNanoseconds;
609 extraFramesDropped++;
613 // If using the elapsed time, then calculate frameDelta as a multiple of mDefaultFrameDelta
614 noOfFramesSinceLastUpdate += extraFramesDropped;
616 frameDelta = mDefaultFrameDelta * noOfFramesSinceLastUpdate;
618 LOG_UPDATE_RENDER("timeSinceLastFrame(%llu) noOfFramesSinceLastUpdate(%u) frameDelta(%.6f)", timeSinceLastFrame, noOfFramesSinceLastUpdate, frameDelta);
620 Integration::UpdateStatus updateStatus;
622 AddPerformanceMarker(PerformanceInterface::UPDATE_START);
623 mCore.Update(frameDelta,
630 AddPerformanceMarker(PerformanceInterface::UPDATE_END);
632 unsigned int keepUpdatingStatus = updateStatus.KeepUpdating();
634 // Tell the event-thread to wake up (if asleep) and send a notification event to Core if required
635 if(updateStatus.NeedsNotification())
637 mNotificationTrigger.Trigger();
638 LOG_UPDATE_RENDER("Notification Triggered");
641 // Optional logging of update/render status
642 mUpdateStatusLogger.Log(keepUpdatingStatus);
644 //////////////////////////////
646 //////////////////////////////
648 mAdaptorInterfaces.GetDisplayConnectionInterface().ConsumeEvents();
650 if(mPreRenderCallback != NULL)
652 bool keepCallback = CallbackBase::ExecuteReturn<bool>(*mPreRenderCallback);
655 delete mPreRenderCallback;
656 mPreRenderCallback = NULL;
660 graphics.ActivateResourceContext();
662 if(mFirstFrameAfterResume)
664 // mFirstFrameAfterResume is set to true when the thread is resumed
665 // Let graphics know the first frame after thread initialized or resumed.
666 graphics.SetFirstFrameAfterResume();
667 mFirstFrameAfterResume = FALSE;
670 Integration::RenderStatus renderStatus;
672 AddPerformanceMarker(PerformanceInterface::RENDER_START);
674 // Upload shared resources
675 mCore.PreRender(renderStatus, mForceClear);
677 if(!uploadOnly || surfaceResized)
679 // Go through each window
680 WindowContainer windows;
681 mAdaptorInterfaces.GetWindowContainerInterface(windows);
683 bool sceneSurfaceResized;
685 for(auto&& window : windows)
687 Dali::Integration::Scene scene = window->GetScene();
688 Dali::RenderSurfaceInterface* windowSurface = window->GetSurface();
690 if(scene && windowSurface)
692 Integration::RenderStatus windowRenderStatus;
694 // Get Surface Resized flag
695 sceneSurfaceResized = scene.IsSurfaceRectChanged();
696 windowSurface->SetIsResizing(sceneSurfaceResized);
698 // clear previous frame damaged render items rects, buffer history is tracked on surface level
699 mDamagedRects.clear();
701 // Collect damage rects
702 mCore.PreRender(windowRenderStatus, scene, mDamagedRects);
704 // Render off-screen frame buffers first if any
705 mCore.RenderScene(windowRenderStatus, scene, true);
707 Rect<int> clippingRect; // Empty for fbo rendering
709 // Switch to the context of the surface, merge damaged areas for previous frames
710 if(windowRenderStatus.NeedsUpdate())
712 windowSurface->PreRender(sceneSurfaceResized, mDamagedRects, clippingRect); // Switch GL context
715 // Render the surface
716 mCore.RenderScene(windowRenderStatus, scene, false, clippingRect);
718 // Buffer swapping now happens when the surface render target is presented.
720 // If surface is resized, the surface resized count is decreased.
721 if(DALI_UNLIKELY(sceneSurfaceResized))
731 graphics.PostRender();
736 //////////////////////////////
738 //////////////////////////////
740 Dali::RenderSurfaceInterface* deletedSurface = ShouldSurfaceBeDeleted();
741 if(DALI_UNLIKELY(deletedSurface))
743 LOG_UPDATE_RENDER_TRACE_FMT("Deleting Surface");
745 deletedSurface->DestroySurface();
750 AddPerformanceMarker(PerformanceInterface::RENDER_END);
754 // Trigger event thread to request Update/Render thread to sleep if update not required
755 if((Integration::KeepUpdating::NOT_REQUESTED == keepUpdatingStatus) && !renderStatus.NeedsUpdate())
757 mSleepTrigger->Trigger();
758 updateRequired = false;
759 LOG_UPDATE_RENDER("Sleep Triggered");
763 updateRequired = true;
766 //////////////////////////////
768 //////////////////////////////
770 extraFramesDropped = 0;
772 if(timeToSleepUntil == 0)
774 // If this is the first frame after the thread is initialized or resumed, we
775 // use the actual time the current frame starts from to calculate the time to
776 // sleep until the next frame.
777 timeToSleepUntil = currentFrameStartTime + mDefaultFrameDurationNanoseconds;
781 // Otherwise, always use the sleep-until time calculated in the last frame to
782 // calculate the time to sleep until the next frame. In this way, if there is
783 // any time gap between the current frame and the next frame, or if update or
784 // rendering in the current frame takes too much time so that the specified
785 // sleep-until time has already passed, it will try to keep the frames syncing
786 // by shortening the duration of the next frame.
787 timeToSleepUntil += mDefaultFrameDurationNanoseconds;
789 // Check the current time at the end of the frame
790 uint64_t currentFrameEndTime = 0;
791 TimeService::GetNanoseconds(currentFrameEndTime);
792 while(currentFrameEndTime > timeToSleepUntil + mDefaultFrameDurationNanoseconds)
794 // We are more than one frame behind already, so just drop the next frames
795 // until the sleep-until time is later than the current time so that we can
797 timeToSleepUntil += mDefaultFrameDurationNanoseconds;
798 extraFramesDropped++;
802 // Render to FBO is intended to measure fps above 60 so sleep is not wanted.
803 if(0u == renderToFboInterval)
805 // Sleep until at least the the default frame duration has elapsed. This will return immediately if the specified end-time has already passed.
806 TimeService::SleepUntil(timeToSleepUntil);
810 // Inform core of context destruction
811 mCore.ContextDestroyed();
813 WindowContainer windows;
814 mAdaptorInterfaces.GetWindowContainerInterface(windows);
817 for(auto&& window : windows)
819 Dali::RenderSurfaceInterface* surface = window->GetSurface();
820 surface->DestroySurface();
825 LOG_UPDATE_RENDER("THREAD DESTROYED");
827 // Uninstall the logging function
828 mEnvironmentOptions.UnInstallLogFunction();
831 bool CombinedUpdateRenderController::UpdateRenderReady(bool& useElapsedTime, bool updateRequired, uint64_t& timeToSleepUntil)
833 useElapsedTime = true;
835 ConditionalWait::ScopedLock updateLock(mUpdateRenderThreadWaitCondition);
836 while((!mUpdateRenderRunCount || // Should try to wait if event-thread has paused the Update/Render thread
837 (mUpdateRenderThreadCanSleep && !updateRequired && !mPendingRequestUpdate)) && // Ensure we wait if we're supposed to be sleeping AND do not require another update
838 !mDestroyUpdateRenderThread && // Ensure we don't wait if the update-render-thread is supposed to be destroyed
839 !mNewSurface && // Ensure we don't wait if we need to replace the surface
840 !mDeletedSurface && // Ensure we don't wait if we need to delete the surface
841 !mSurfaceResized) // Ensure we don't wait if we need to resize the surface
843 LOG_UPDATE_RENDER("WAIT: mUpdateRenderRunCount: %d", mUpdateRenderRunCount);
844 LOG_UPDATE_RENDER(" mUpdateRenderThreadCanSleep: %d, updateRequired: %d, mPendingRequestUpdate: %d", mUpdateRenderThreadCanSleep, updateRequired, mPendingRequestUpdate);
845 LOG_UPDATE_RENDER(" mDestroyUpdateRenderThread: %d", mDestroyUpdateRenderThread);
846 LOG_UPDATE_RENDER(" mNewSurface: %d", mNewSurface);
847 LOG_UPDATE_RENDER(" mDeletedSurface: %d", mDeletedSurface);
848 LOG_UPDATE_RENDER(" mSurfaceResized: %d", mSurfaceResized);
850 // Reset the time when the thread is waiting, so the sleep-until time for
851 // the first frame after resuming should be based on the actual start time
852 // of the first frame.
853 timeToSleepUntil = 0;
855 mUpdateRenderThreadWaitCondition.Wait(updateLock);
857 if(!mUseElapsedTimeAfterWait)
859 useElapsedTime = false;
863 LOG_COUNTER_UPDATE_RENDER("mUpdateRenderRunCount: %d", mUpdateRenderRunCount);
864 LOG_COUNTER_UPDATE_RENDER("mUpdateRenderThreadCanSleep: %d, updateRequired: %d, mPendingRequestUpdate: %d", mUpdateRenderThreadCanSleep, updateRequired, mPendingRequestUpdate);
865 LOG_COUNTER_UPDATE_RENDER("mDestroyUpdateRenderThread: %d", mDestroyUpdateRenderThread);
866 LOG_COUNTER_UPDATE_RENDER("mNewSurface: %d", mNewSurface);
867 LOG_COUNTER_UPDATE_RENDER("mDeletedSurface: %d", mDeletedSurface);
868 LOG_COUNTER_UPDATE_RENDER("mSurfaceResized: %d", mSurfaceResized);
870 mUseElapsedTimeAfterWait = FALSE;
871 mUpdateRenderThreadCanSleep = FALSE;
872 mPendingRequestUpdate = FALSE;
874 // If we've been asked to run Update/Render cycles a finite number of times then decrement so we wait after the
875 // requested number of cycles
876 if(mUpdateRenderRunCount > 0)
878 --mUpdateRenderRunCount;
881 // Keep the update-render thread alive if this thread is NOT to be destroyed
882 return !mDestroyUpdateRenderThread;
885 Dali::RenderSurfaceInterface* CombinedUpdateRenderController::ShouldSurfaceBeReplaced()
887 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
889 Dali::RenderSurfaceInterface* newSurface = mNewSurface;
895 void CombinedUpdateRenderController::SurfaceReplaced()
897 // Just increment the semaphore
898 mSurfaceSemaphore.Release(1);
901 Dali::RenderSurfaceInterface* CombinedUpdateRenderController::ShouldSurfaceBeDeleted()
903 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
905 Dali::RenderSurfaceInterface* deletedSurface = mDeletedSurface;
906 mDeletedSurface = NULL;
908 return deletedSurface;
911 void CombinedUpdateRenderController::SurfaceDeleted()
913 // Just increment the semaphore
914 mSurfaceSemaphore.Release(1);
917 void CombinedUpdateRenderController::SurfaceResized()
919 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
926 ///////////////////////////////////////////////////////////////////////////////////////////////////
928 ///////////////////////////////////////////////////////////////////////////////////////////////////
930 void CombinedUpdateRenderController::NotifyThreadInitialised()
932 // Just increment the semaphore
933 mEventThreadSemaphore.Release(1);
936 void CombinedUpdateRenderController::NotifyGraphicsInitialised()
938 mGraphicsInitializeWait.Notify();
941 void CombinedUpdateRenderController::AddPerformanceMarker(PerformanceInterface::MarkerType type)
943 if(mPerformanceInterface)
945 mPerformanceInterface->AddMarker(type);
949 /////////////////////////////////////////////////////////////////////////////////////////////////
950 // POST RENDERING: EVENT THREAD
951 /////////////////////////////////////////////////////////////////////////////////////////////////
953 void CombinedUpdateRenderController::PostRenderComplete()
955 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
956 mPostRendering = FALSE;
957 mUpdateRenderThreadWaitCondition.Notify(lock);
960 ///////////////////////////////////////////////////////////////////////////////////////////////////
961 // POST RENDERING: RENDER THREAD
962 ///////////////////////////////////////////////////////////////////////////////////////////////////
964 void CombinedUpdateRenderController::PostRenderStarted()
966 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
967 mPostRendering = TRUE;
970 void CombinedUpdateRenderController::PostRenderWaitForCompletion()
972 ConditionalWait::ScopedLock lock(mUpdateRenderThreadWaitCondition);
973 while(mPostRendering &&
974 !mNewSurface && // We should NOT wait if we're replacing the surface
975 !mDeletedSurface && // We should NOT wait if we're deleting the surface
976 !mDestroyUpdateRenderThread)
978 mUpdateRenderThreadWaitCondition.Wait(lock);
982 } // namespace Adaptor
984 } // namespace Internal