| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "web/CompositorProxyClientImpl.h" |
| |
| #include "core/dom/CompositorProxy.h" |
| #include "modules/compositorworker/CompositorWorkerGlobalScope.h" |
| #include "platform/TraceEvent.h" |
| #include "web/CompositorMutatorImpl.h" |
| #include "wtf/CurrentTime.h" |
| |
| namespace blink { |
| |
| CompositorProxyClientImpl::CompositorProxyClientImpl(CompositorMutatorImpl* mutator) |
| : m_mutator(mutator) |
| , m_globalScope(nullptr) |
| { |
| } |
| |
| DEFINE_TRACE(CompositorProxyClientImpl) |
| { |
| CompositorProxyClient::trace(visitor); |
| visitor->trace(m_mutator); |
| visitor->trace(m_globalScope); |
| } |
| |
| void CompositorProxyClientImpl::setGlobalScope(WorkerGlobalScope* scope) |
| { |
| TRACE_EVENT0("compositor-worker", "CompositorProxyClientImpl::setGlobalScope"); |
| DCHECK(!m_globalScope); |
| DCHECK(scope); |
| m_globalScope = static_cast<CompositorWorkerGlobalScope*>(scope); |
| m_mutator->registerProxyClient(this); |
| } |
| |
| void CompositorProxyClientImpl::requestAnimationFrame() |
| { |
| TRACE_EVENT0("compositor-worker", "CompositorProxyClientImpl::requestAnimationFrame"); |
| m_requestedAnimationFrameCallbacks = true; |
| m_mutator->setNeedsMutate(); |
| } |
| |
| bool CompositorProxyClientImpl::mutate(double monotonicTimeNow) |
| { |
| if (!m_globalScope) |
| return false; |
| |
| TRACE_EVENT0("compositor-worker", "CompositorProxyClientImpl::mutate"); |
| if (!m_requestedAnimationFrameCallbacks) |
| return false; |
| |
| m_requestedAnimationFrameCallbacks = executeAnimationFrameCallbacks(monotonicTimeNow); |
| |
| return m_requestedAnimationFrameCallbacks; |
| } |
| |
| bool CompositorProxyClientImpl::executeAnimationFrameCallbacks(double monotonicTimeNow) |
| { |
| TRACE_EVENT0("compositor-worker", "CompositorProxyClientImpl::executeAnimationFrameCallbacks"); |
| // Convert to zero based document time in milliseconds consistent with requestAnimationFrame. |
| double highResTimeMs = 1000.0 * (monotonicTimeNow - m_globalScope->timeOrigin()); |
| const bool shouldReinvoke = m_globalScope->executeAnimationFrameCallbacks(highResTimeMs); |
| return shouldReinvoke; |
| } |
| |
| } // namespace blink |