src/content/browser/compositor/browser_compositor_output_surface.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/compositor/browser_compositor_output_surface.h"
   6
   7 #include "base/bind.h"
   8 #include "base/command_line.h"
   9 #include "base/location.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "content/browser/compositor/reflector_impl.h"
  12 #include "content/common/gpu/client/context_provider_command_buffer.h"
  13 #include "ui/compositor/compositor_switches.h"
  14
  15 namespace content {
  16
  17 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
  18     const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
  19     int surface_id,
  20     IDMap<BrowserCompositorOutputSurface>* output_surface_map,
  21     const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
  22     : OutputSurface(context_provider),
  23       surface_id_(surface_id),
  24       output_surface_map_(output_surface_map),
  25       vsync_manager_(vsync_manager) {
  26   Initialize();
  27 }
  28
  29 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
  30     scoped_ptr<cc::SoftwareOutputDevice> software_device,
  31     int surface_id,
  32     IDMap<BrowserCompositorOutputSurface>* output_surface_map,
  33     const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
  34     : OutputSurface(software_device.Pass()),
  35       surface_id_(surface_id),
  36       output_surface_map_(output_surface_map),
  37       vsync_manager_(vsync_manager) {
  38   Initialize();
  39 }
  40
  41 BrowserCompositorOutputSurface::~BrowserCompositorOutputSurface() {
  42   DCHECK(CalledOnValidThread());
  43   if (reflector_)
  44     reflector_->DetachFromOutputSurface();
  45   DCHECK(!reflector_);
  46   if (!HasClient())
  47     return;
  48   output_surface_map_->Remove(surface_id_);
  49   vsync_manager_->RemoveObserver(this);
  50 }
  51
  52 void BrowserCompositorOutputSurface::Initialize() {
  53   capabilities_.max_frames_pending = 1;
  54   capabilities_.adjust_deadline_for_parent = false;
  55
  56   DetachFromThread();
  57 }
  58
  59 bool BrowserCompositorOutputSurface::BindToClient(
  60     cc::OutputSurfaceClient* client) {
  61   DCHECK(CalledOnValidThread());
  62
  63   if (!OutputSurface::BindToClient(client))
  64     return false;
  65
  66   output_surface_map_->AddWithID(this, surface_id_);
  67   if (reflector_)
  68     reflector_->OnSourceSurfaceReady(this);
  69   vsync_manager_->AddObserver(this);
  70   return true;
  71 }
  72
  73 void BrowserCompositorOutputSurface::OnUpdateVSyncParameters(
  74     base::TimeTicks timebase,
  75     base::TimeDelta interval) {
  76   DCHECK(CalledOnValidThread());
  77   DCHECK(HasClient());
  78   CommitVSyncParameters(timebase, interval);
  79 }
  80
  81 void BrowserCompositorOutputSurface::OnUpdateVSyncParametersFromGpu(
  82     base::TimeTicks timebase,
  83     base::TimeDelta interval) {
  84   DCHECK(CalledOnValidThread());
  85   DCHECK(HasClient());
  86   vsync_manager_->UpdateVSyncParameters(timebase, interval);
  87 }
  88
  89 void BrowserCompositorOutputSurface::SetReflector(ReflectorImpl* reflector) {
  90   reflector_ = reflector;
  91 }
  92
  93 }  // namespace content