Composite to cc::Display from ui::InProcessContextFactory.

content/browser/compositor/surface_display_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 "content/browser/compositor/surface_display_output_surface.h"
-
-#include "cc/output/compositor_frame.h"
-#include "cc/output/compositor_frame_ack.h"
-#include "cc/surfaces/display.h"
-#include "cc/surfaces/surface.h"
-#include "cc/surfaces/surface_manager.h"
-#include "content/browser/compositor/onscreen_display_client.h"
-
-namespace content {
-
-SurfaceDisplayOutputSurface::SurfaceDisplayOutputSurface(
-    cc::SurfaceManager* surface_manager,
-    cc::SurfaceIdAllocator* allocator,
-    const scoped_refptr<cc::ContextProvider>& context_provider)
-    : cc::OutputSurface(context_provider,
-                        scoped_ptr<cc::SoftwareOutputDevice>()),
-      display_client_(NULL),
-      surface_manager_(surface_manager),
-      factory_(surface_manager, this),
-      allocator_(allocator) {
-  capabilities_.delegated_rendering = true;
-  capabilities_.max_frames_pending = 1;
-  capabilities_.can_force_reclaim_resources = true;
-}
-
-SurfaceDisplayOutputSurface::~SurfaceDisplayOutputSurface() {
-  client_ = NULL;
-  if (!surface_id_.is_null()) {
-    factory_.Destroy(surface_id_);
-  }
-}
-
-void SurfaceDisplayOutputSurface::ReceivedVSyncParameters(
-    base::TimeTicks timebase,
-    base::TimeDelta interval) {
-  CommitVSyncParameters(timebase, interval);
-}
-
-void SurfaceDisplayOutputSurface::SwapBuffers(cc::CompositorFrame* frame) {
-  gfx::Size frame_size =
-      frame->delegated_frame_data->render_pass_list.back()->output_rect.size();
-  if (frame_size != display_size_) {
-    if (!surface_id_.is_null()) {
-      factory_.Destroy(surface_id_);
-    }
-    surface_id_ = allocator_->GenerateId();
-    factory_.Create(surface_id_);
-    display_size_ = frame_size;
-  }
-  display_client_->display()->SetSurfaceId(surface_id_,
-                                           frame->metadata.device_scale_factor);
-
-  scoped_ptr<cc::CompositorFrame> frame_copy(new cc::CompositorFrame());
-  frame->AssignTo(frame_copy.get());
-  factory_.SubmitFrame(
-      surface_id_,
-      frame_copy.Pass(),
-      base::Bind(&SurfaceDisplayOutputSurface::SwapBuffersComplete,
-                 base::Unretained(this)));
-
-  client_->DidSwapBuffers();
-}
-
-bool SurfaceDisplayOutputSurface::BindToClient(
-    cc::OutputSurfaceClient* client) {
-  DCHECK(client);
-  DCHECK(display_client_);
-  client_ = client;
-  // Avoid initializing GL context here, as this should be sharing the
-  // Display's context.
-  return display_client_->Initialize();
-}
-
-void SurfaceDisplayOutputSurface::ForceReclaimResources() {
-  if (!surface_id_.is_null()) {
-    scoped_ptr<cc::CompositorFrame> empty_frame(new cc::CompositorFrame());
-    empty_frame->delegated_frame_data.reset(new cc::DelegatedFrameData);
-    factory_.SubmitFrame(surface_id_, empty_frame.Pass(),
-                         cc::SurfaceFactory::DrawCallback());
-  }
-}
-
-void SurfaceDisplayOutputSurface::ReturnResources(
-    const cc::ReturnedResourceArray& resources) {
-  cc::CompositorFrameAck ack;
-  ack.resources = resources;
-  if (client_)
-    client_->ReclaimResources(&ack);
-}
-
-void SurfaceDisplayOutputSurface::SwapBuffersComplete(
-    cc::SurfaceDrawStatus drawn) {
-  if (client_ && !display_client_->output_surface_lost())
-    client_->DidSwapBuffersComplete();
-}
-
-}  // namespace content