DirectCompositorFrameSink Uses CompositorFrameSinkSupport

cc/surfaces/compositor_frame_sink_support.cc

 // 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 "cc/surfaces/compositor_frame_sink_support.h"
 
 #include "cc/output/compositor_frame.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/surfaces/compositor_frame_sink_support_client.h"
 #include "cc/surfaces/display.h"
 #include "cc/surfaces/surface.h"
 #include "cc/surfaces/surface_manager.h"
 
 namespace cc {
 
 CompositorFrameSinkSupport::CompositorFrameSinkSupport(
     CompositorFrameSinkSupportClient* client,
     SurfaceManager* surface_manager,
     const FrameSinkId& frame_sink_id,
-    std::unique_ptr<Display> display,
+    Display* display,
     std::unique_ptr<BeginFrameSource> display_begin_frame_source)
     : client_(client),
       surface_manager_(surface_manager),
       frame_sink_id_(frame_sink_id),
       display_begin_frame_source_(std::move(display_begin_frame_source)),
       display_(std::move(display)),
       surface_factory_(frame_sink_id_, surface_manager_, this),
       weak_factory_(this) {
-  surface_manager_->RegisterFrameSinkId(frame_sink_id_);
   surface_manager_->RegisterSurfaceFactoryClient(frame_sink_id_, this);
 
-  if (display_) {
+  if (display_)
     display_->Initialize(this, surface_manager_);
-    display_->SetVisible(true);
-  }
 }
 
 CompositorFrameSinkSupport::~CompositorFrameSinkSupport() {
   for (auto& child_frame_sink_id : child_frame_sinks_) {
     DCHECK(child_frame_sink_id.is_valid());
     surface_manager_->UnregisterFrameSinkHierarchy(frame_sink_id_,
                                                    child_frame_sink_id);
   }
-  // SurfaceFactory's destructor will attempt to return resources which will
-  // call back into here and access |client_| so we should destroy
-  // |surface_factory_|'s resources early on.
+  // Unregister the SurfaceFactoryClient here instead of the dtor so that only
+  // one client is alive for this namespace at any given time.
+  surface_manager_->UnregisterSurfaceFactoryClient(frame_sink_id_);
   surface_factory_.EvictSurface();
-  surface_manager_->UnregisterSurfaceFactoryClient(frame_sink_id_);
-  surface_manager_->InvalidateFrameSinkId(frame_sink_id_);

[Fady Samuel, 2017/01/04 21:47:40]

Why was this deleted? Please restore this code?

[Alex Z., 2017/01/05 00:30:13]

Done.

 }
 
 void CompositorFrameSinkSupport::EvictFrame() {
   surface_factory_.EvictSurface();
 }
 
 void CompositorFrameSinkSupport::SetNeedsBeginFrame(bool needs_begin_frame) {
   needs_begin_frame_ = needs_begin_frame;
   UpdateNeedsBeginFramesInternal();
 }
@@ skipping 65 matching lines @@
 void CompositorFrameSinkSupport::RemoveChildFrameSink(
     const FrameSinkId& child_frame_sink_id) {
   auto it = child_frame_sinks_.find(child_frame_sink_id);
   DCHECK(it != child_frame_sinks_.end());
   DCHECK(it->is_valid());
   surface_manager_->UnregisterFrameSinkHierarchy(frame_sink_id_,
                                                  child_frame_sink_id);
   child_frame_sinks_.erase(it);
 }
 
+void CompositorFrameSinkSupport::SetNeedsSyncPoints(bool needs_sync_points) {
+  surface_factory_.set_needs_sync_points(needs_sync_points);
+}
+
+void CompositorFrameSinkSupport::ForceReclaimResources() {
+  if (local_frame_id_.is_valid())
+    surface_factory_.ClearSurface();
+}
+
+void CompositorFrameSinkSupport::RegisterFrameSinkId() {

[Fady Samuel, 2017/01/04 21:47:40]

Delete this?

[Alex Z., 2017/01/05 00:30:13]

Done.

+  surface_manager_->RegisterFrameSinkId(frame_sink_id_);
+}
+
+void CompositorFrameSinkSupport::InvalidateFrameSinkId() {

[Fady Samuel, 2017/01/04 21:47:40]

Delete this?

[Alex Z., 2017/01/05 00:30:13]

Done.

+  surface_manager_->InvalidateFrameSinkId(frame_sink_id_);
+}
+
 void CompositorFrameSinkSupport::DisplayOutputSurfaceLost() {}
 
 void CompositorFrameSinkSupport::DisplayWillDrawAndSwap(
     bool will_draw_and_swap,
     const RenderPassList& render_passes) {}
 
 void CompositorFrameSinkSupport::DisplayDidDrawAndSwap() {}
 
 void CompositorFrameSinkSupport::ReturnResources(
     const ReturnedResourceArray& resources) {
@@ skipping 48 matching lines @@
     return;
 
   added_frame_observer_ = needs_begin_frame_;
   if (needs_begin_frame_)
     begin_frame_source_->AddObserver(this);
   else
     begin_frame_source_->RemoveObserver(this);
 }
 
 }  // namespace cc