Mandoline: Allow submitting CompositorFrames directly to mojo::Views

components/view_manager/surfaces/surfaces_impl.cc

-// Copyright 2014 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 "components/view_manager/surfaces/surfaces_impl.h"
-
-#include "base/trace_event/trace_event.h"
-#include "cc/output/compositor_frame.h"
-#include "cc/resources/returned_resource.h"
-#include "cc/surfaces/surface_id_allocator.h"
-#include "components/view_manager/surfaces/surfaces_delegate.h"
-#include "components/view_manager/surfaces/surfaces_scheduler.h"
-#include "mojo/converters/geometry/geometry_type_converters.h"
-#include "mojo/converters/surfaces/surfaces_type_converters.h"
-
-using mojo::SurfaceIdPtr;
-
-namespace surfaces {
-
-namespace {
-void CallCallback(const mojo::Closure& callback, cc::SurfaceDrawStatus status) {
-  callback.Run();
-}
-}
-
-SurfacesImpl::SurfacesImpl(SurfacesDelegate* surfaces_delegate,
-                           const scoped_refptr<SurfacesState>& state,
-                           mojo::InterfaceRequest<mojo::Surface> request)
-    : delegate_(surfaces_delegate),
-      state_(state),
-      id_namespace_(state->next_id_namespace()),
-      factory_(state->manager(), this),
-      binding_(this, request.Pass()) {
-  // Destroy this object if the connection is closed.
-  binding_.set_connection_error_handler(
-      base::Bind(&SurfacesImpl::CloseConnection, base::Unretained(this)));
-}
-
-void SurfacesImpl::CloseConnection() {
-  if (connection_closed_)
-    return;
-  connection_closed_ = true;
-  delegate_->OnSurfaceConnectionClosed(this);
-  delete this;
-}
-
-void SurfacesImpl::GetIdNamespace(
-    const Surface::GetIdNamespaceCallback& callback) {
-  callback.Run(id_namespace_);
-}
-
-void SurfacesImpl::SetResourceReturner(mojo::ResourceReturnerPtr returner) {
-  returner_ = returner.Pass();
-}
-
-void SurfacesImpl::CreateSurface(uint32_t local_id) {
-  factory_.Create(QualifyIdentifier(local_id));
-}
-
-void SurfacesImpl::SubmitCompositorFrame(uint32_t local_id,
-                                         mojo::CompositorFramePtr frame,
-                                         const mojo::Closure& callback) {
-  TRACE_EVENT0("mojo", "SurfacesImpl::SubmitCompositorFrame");
-  factory_.SubmitCompositorFrame(QualifyIdentifier(local_id),
-                                 frame.To<scoped_ptr<cc::CompositorFrame>>(),
-                                 base::Bind(&CallCallback, callback));
-  state_->scheduler()->SetNeedsDraw();
-}
-
-void SurfacesImpl::DestroySurface(uint32_t local_id) {
-  factory_.Destroy(QualifyIdentifier(local_id));
-}
-
-void SurfacesImpl::ReturnResources(const cc::ReturnedResourceArray& resources) {
-  if (resources.empty() || !returner_)
-    return;
-  mojo::Array<mojo::ReturnedResourcePtr> ret(resources.size());
-  for (size_t i = 0; i < resources.size(); ++i) {
-    ret[i] = mojo::ReturnedResource::From(resources[i]);
-  }
-  returner_->ReturnResources(ret.Pass());
-}
-
-SurfacesImpl::~SurfacesImpl() {
-  // Only CloseConnection should be allowed to destroy this object.
-  DCHECK(connection_closed_);
-  factory_.DestroyAll();
-}
-
-cc::SurfaceId SurfacesImpl::QualifyIdentifier(uint32_t local_id) {
-  return cc::SurfaceId(static_cast<uint64_t>(id_namespace_) << 32 | local_id);
-}
-
-}  // namespace mojo