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content / public / browser / android / synchronous_compositor.cc [blame]
// Copyright 2016 The Chromium Authors
// 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 "components/viz/common/quads/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)),
local_surface_id(rhs.local_surface_id) {}
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::ScopedAllowBaseSyncPrimitivesOutsideBlockingScope
allow_base_sync_primitives;
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;
local_surface_id = rhs.local_surface_id;
frame = std::move(rhs.frame);
return *this;
}
} // namespace content