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/location.h"
   9 #include "base/strings/string_number_conversions.h"
  10 #include "content/browser/compositor/reflector_impl.h"
  11 #include "content/common/gpu/client/context_provider_command_buffer.h"
  12
  13 namespace content {
  14
  15 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
  16     const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
  17     int surface_id,
  18     IDMap<BrowserCompositorOutputSurface>* output_surface_map,
  19     const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
  20     : OutputSurface(context_provider),
  21       surface_id_(surface_id),
  22       output_surface_map_(output_surface_map),
  23       vsync_manager_(vsync_manager) {
  24   Initialize();
  25 }
  26
  27 BrowserCompositorOutputSurface::BrowserCompositorOutputSurface(
  28     scoped_ptr<cc::SoftwareOutputDevice> software_device,
  29     int surface_id,
  30     IDMap<BrowserCompositorOutputSurface>* output_surface_map,
  31     const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
  32     : OutputSurface(software_device.Pass()),
  33       surface_id_(surface_id),
  34       output_surface_map_(output_surface_map),
  35       vsync_manager_(vsync_manager) {
  36   Initialize();
  37 }
  38
  39 BrowserCompositorOutputSurface::~BrowserCompositorOutputSurface() {
  40   DCHECK(CalledOnValidThread());
  41   if (reflector_.get())
  42     reflector_->DetachFromOutputSurface();
  43   DCHECK(!reflector_.get());
  44   if (!HasClient())
  45     return;
  46   output_surface_map_->Remove(surface_id_);
  47   vsync_manager_->RemoveObserver(this);
  48 }
  49
  50 void BrowserCompositorOutputSurface::Initialize() {
  51   capabilities_.max_frames_pending = 1;
  52   capabilities_.adjust_deadline_for_parent = false;
  53
  54   DetachFromThread();
  55 }
  56
  57 bool BrowserCompositorOutputSurface::BindToClient(
  58     cc::OutputSurfaceClient* client) {
  59   DCHECK(CalledOnValidThread());
  60
  61   if (!OutputSurface::BindToClient(client))
  62     return false;
  63
  64   output_surface_map_->AddWithID(this, surface_id_);
  65   if (reflector_.get())
  66     reflector_->OnSourceSurfaceReady(this);
  67   vsync_manager_->AddObserver(this);
  68   return true;
  69 }
  70
  71 void BrowserCompositorOutputSurface::OnSwapBuffersComplete() {
  72   // On Mac, delay acknowledging the swap to the output surface client until
  73   // it has been drawn.
  74 #if !defined(OS_MACOSX)
  75   cc::OutputSurface::OnSwapBuffersComplete();
  76 #endif
  77 }
  78
  79 void BrowserCompositorOutputSurface::OnUpdateVSyncParameters(
  80     base::TimeTicks timebase,
  81     base::TimeDelta interval) {
  82   DCHECK(CalledOnValidThread());
  83   DCHECK(HasClient());
  84   CommitVSyncParameters(timebase, interval);
  85 }
  86
  87 void BrowserCompositorOutputSurface::OnUpdateVSyncParametersFromGpu(
  88     base::TimeTicks timebase,
  89     base::TimeDelta interval) {
  90   DCHECK(CalledOnValidThread());
  91   DCHECK(HasClient());
  92   vsync_manager_->UpdateVSyncParameters(timebase, interval);
  93 }
  94
  95 void BrowserCompositorOutputSurface::SetReflector(ReflectorImpl* reflector) {
  96   reflector_ = reflector;
  97 }
  98
  99 #if defined(OS_MACOSX)
 100 void BrowserCompositorOutputSurface::OnSurfaceDisplayed() {
 101   cc::OutputSurface::OnSwapBuffersComplete();
 102 }
 103 #endif
 104
 105 }  // namespace content