Fork cc::OutputSurface into cc::CompositorFrameSink.

services/ui/public/cpp/output_surface.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 "services/ui/public/cpp/output_surface.h"
-
-#include "base/bind.h"
-#include "cc/output/compositor_frame.h"
-#include "cc/output/output_surface_client.h"
-#include "gpu/ipc/client/gpu_channel_host.h"
-#include "services/ui/public/cpp/context_provider.h"
-#include "services/ui/public/cpp/gpu_service.h"
-#include "services/ui/public/cpp/window_surface.h"
-
-namespace ui {
-
-OutputSurface::OutputSurface(
-    scoped_refptr<gpu::GpuChannelHost> gpu_channel_host,
-    std::unique_ptr<ui::WindowSurface> surface)
-    : cc::OutputSurface(
-          make_scoped_refptr(new ContextProvider(std::move(gpu_channel_host))),
-          nullptr,
-          nullptr),
-      surface_(std::move(surface)) {
-  capabilities_.delegated_rendering = true;
-}
-
-OutputSurface::~OutputSurface() {}
-
-bool OutputSurface::BindToClient(cc::OutputSurfaceClient* client) {
-  surface_->BindToThread();
-  surface_->set_client(this);
-
-  // TODO(enne): Get this from the WindowSurface via ServerWindowSurface.
-  begin_frame_source_.reset(new cc::DelayBasedBeginFrameSource(
-      base::MakeUnique<cc::DelayBasedTimeSource>(
-          base::ThreadTaskRunnerHandle::Get().get())));
-
-  client->SetBeginFrameSource(begin_frame_source_.get());
-  return cc::OutputSurface::BindToClient(client);
-}
-
-void OutputSurface::DetachFromClient() {
-  client_->SetBeginFrameSource(nullptr);
-  begin_frame_source_.reset();
-  surface_.reset();
-  cc::OutputSurface::DetachFromClient();
-}
-
-void OutputSurface::BindFramebuffer() {
-  // This is a delegating output surface, no framebuffer/direct drawing support.
-  NOTREACHED();
-}
-
-uint32_t OutputSurface::GetFramebufferCopyTextureFormat() {
-  // This is a delegating output surface, no framebuffer/direct drawing support.
-  NOTREACHED();
-  return 0;
-}
-
-void OutputSurface::SwapBuffers(cc::CompositorFrame frame) {
-  // OutputSurface owns WindowSurface, and so if OutputSurface is
-  // destroyed then SubmitCompositorFrame's callback will never get called.
-  // Thus, base::Unretained is safe here.
-  surface_->SubmitCompositorFrame(
-      std::move(frame),
-      base::Bind(&OutputSurface::SwapBuffersComplete, base::Unretained(this)));
-}
-
-void OutputSurface::OnResourcesReturned(
-    ui::WindowSurface* surface,
-    mojo::Array<cc::ReturnedResource> resources) {
-  client_->ReclaimResources(resources.To<cc::ReturnedResourceArray>());
-}
-
-void OutputSurface::SwapBuffersComplete() {
-  client_->DidSwapBuffersComplete();
-}
-
-}  // namespace ui