| // Copyright 2016 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 "content/public/browser/android/synchronous_compositor.h" |
| |
| #include <utility> |
| |
| #include "base/threading/thread_restrictions.h" |
| #include "cc/output/compositor_frame.h" |
| |
| namespace content { |
| |
| SynchronousCompositor::Frame::Frame() : layer_tree_frame_sink_id(0u) {} |
| |
| SynchronousCompositor::Frame::~Frame() {} |
| |
| SynchronousCompositor::Frame::Frame(Frame&& rhs) |
| : layer_tree_frame_sink_id(rhs.layer_tree_frame_sink_id), |
| frame(std::move(rhs.frame)) {} |
| |
| SynchronousCompositor::FrameFuture::FrameFuture() |
| : waitable_event_(base::WaitableEvent::ResetPolicy::MANUAL, |
| base::WaitableEvent::InitialState::NOT_SIGNALED) {} |
| |
| SynchronousCompositor::FrameFuture::~FrameFuture() {} |
| |
| void SynchronousCompositor::FrameFuture::SetFrame( |
| std::unique_ptr<Frame> frame) { |
| frame_ = std::move(frame); |
| waitable_event_.Signal(); |
| } |
| |
| std::unique_ptr<SynchronousCompositor::Frame> |
| SynchronousCompositor::FrameFuture::GetFrame() { |
| #if DCHECK_IS_ON() |
| DCHECK(!waited_); |
| waited_ = true; |
| #endif |
| base::ThreadRestrictions::ScopedAllowWait wait; |
| waitable_event_.Wait(); |
| return std::move(frame_); |
| } |
| |
| SynchronousCompositor::Frame& SynchronousCompositor::Frame::operator=( |
| Frame&& rhs) { |
| layer_tree_frame_sink_id = rhs.layer_tree_frame_sink_id; |
| frame = std::move(rhs.frame); |
| return *this; |
| } |
| |
| } // namespace content |