cc/surfaces/onscreen_display_client.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 "cc/surfaces/onscreen_display_client.h"
   6
   7 #include "base/trace_event/trace_event.h"
   8 #include "cc/output/output_surface.h"
   9 #include "cc/scheduler/begin_frame_source.h"
  10 #include "cc/surfaces/display_scheduler.h"
  11 #include "cc/surfaces/surface_display_output_surface.h"
  12 #include "cc/surfaces/surface_factory.h"
  13 #include "cc/surfaces/surface_manager.h"
  14
  15 namespace cc {
  16
  17 OnscreenDisplayClient::OnscreenDisplayClient(
  18     scoped_ptr<OutputSurface> output_surface,
  19     SurfaceManager* manager,
  20     SharedBitmapManager* bitmap_manager,
  21     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
  22     const RendererSettings& settings,
  23     scoped_refptr<base::SingleThreadTaskRunner> task_runner)
  24     : output_surface_(output_surface.Pass()),
  25       display_(new Display(this,
  26                            manager,
  27                            bitmap_manager,
  28                            gpu_memory_buffer_manager,
  29                            settings)),
  30       task_runner_(task_runner),
  31       output_surface_lost_(false) {
  32 }
  33
  34 OnscreenDisplayClient::~OnscreenDisplayClient() {
  35 }
  36
  37 bool OnscreenDisplayClient::Initialize() {
  38   int max_frames_pending =
  39       output_surface_ ? output_surface_->capabilities().max_frames_pending : 0;
  40   if (max_frames_pending <= 0)
  41     max_frames_pending = OutputSurface::DEFAULT_MAX_FRAMES_PENDING;
  42
  43   synthetic_begin_frame_source_ = SyntheticBeginFrameSource::Create(
  44       task_runner_.get(), base::TimeTicks(), BeginFrameArgs::DefaultInterval());
  45   scheduler_.reset(new DisplayScheduler(display_.get(),
  46                                         synthetic_begin_frame_source_.get(),
  47                                         task_runner_, max_frames_pending));
  48   return display_->Initialize(output_surface_.Pass(), scheduler_.get());
  49 }
  50
  51 void OnscreenDisplayClient::CommitVSyncParameters(base::TimeTicks timebase,
  52                                                   base::TimeDelta interval) {
  53   if (interval == base::TimeDelta()) {
  54     // TODO(brianderson): We should not be receiving 0 intervals.
  55     interval = BeginFrameArgs::DefaultInterval();
  56   }
  57
  58   surface_display_output_surface_->ReceivedVSyncParameters(timebase, interval);
  59   if (synthetic_begin_frame_source_)
  60     synthetic_begin_frame_source_->OnUpdateVSyncParameters(timebase, interval);
  61 }
  62
  63 void OnscreenDisplayClient::OutputSurfaceLost() {
  64   output_surface_lost_ = true;
  65   surface_display_output_surface_->DidLoseOutputSurface();
  66 }
  67
  68 void OnscreenDisplayClient::SetMemoryPolicy(const ManagedMemoryPolicy& policy) {
  69   surface_display_output_surface_->SetMemoryPolicy(policy);
  70 }
  71
  72 }  // namespace cc