| // 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/onscreen_display_client.h" |
| |
| #include "base/debug/trace_event.h" |
| #include "cc/output/output_surface.h" |
| #include "cc/surfaces/surface_factory.h" |
| #include "cc/surfaces/surface_manager.h" |
| #include "content/browser/compositor/surface_display_output_surface.h" |
| #include "content/browser/gpu/browser_gpu_memory_buffer_manager.h" |
| #include "content/common/host_shared_bitmap_manager.h" |
| |
| namespace content { |
| |
| OnscreenDisplayClient::OnscreenDisplayClient( |
| scoped_ptr<cc::OutputSurface> output_surface, |
| cc::SurfaceManager* manager, |
| scoped_refptr<base::SingleThreadTaskRunner> task_runner) |
| : output_surface_(output_surface.Pass()), |
| display_(new cc::Display(this, |
| manager, |
| HostSharedBitmapManager::current(), |
| BrowserGpuMemoryBufferManager::current())), |
| task_runner_(task_runner), |
| scheduled_draw_(false), |
| deferred_draw_(false), |
| pending_frames_(0), |
| weak_ptr_factory_(this) { |
| } |
| |
| OnscreenDisplayClient::~OnscreenDisplayClient() { |
| } |
| |
| bool OnscreenDisplayClient::Initialize() { |
| return display_->Initialize(output_surface_.Pass()); |
| } |
| |
| void OnscreenDisplayClient::CommitVSyncParameters(base::TimeTicks timebase, |
| base::TimeDelta interval) { |
| surface_display_output_surface_->ReceivedVSyncParameters(timebase, interval); |
| } |
| |
| void OnscreenDisplayClient::DisplayDamaged() { |
| if (scheduled_draw_ || deferred_draw_) |
| return; |
| TRACE_EVENT0("content", "OnscreenDisplayClient::DisplayDamaged"); |
| if (pending_frames_ >= display_->GetMaxFramesPending()) { |
| deferred_draw_ = true; |
| } else { |
| ScheduleDraw(); |
| } |
| } |
| |
| void OnscreenDisplayClient::ScheduleDraw() { |
| DCHECK(!deferred_draw_); |
| DCHECK(!scheduled_draw_); |
| scheduled_draw_ = true; |
| task_runner_->PostTask( |
| FROM_HERE, |
| base::Bind(&OnscreenDisplayClient::Draw, weak_ptr_factory_.GetWeakPtr())); |
| } |
| |
| void OnscreenDisplayClient::OutputSurfaceLost() { |
| surface_display_output_surface_->DidLoseOutputSurface(); |
| } |
| |
| void OnscreenDisplayClient::Draw() { |
| TRACE_EVENT0("content", "OnscreenDisplayClient::Draw"); |
| scheduled_draw_ = false; |
| display_->Draw(); |
| } |
| |
| void OnscreenDisplayClient::DidSwapBuffers() { |
| pending_frames_++; |
| } |
| |
| void OnscreenDisplayClient::DidSwapBuffersComplete() { |
| pending_frames_--; |
| if ((pending_frames_ < display_->GetMaxFramesPending()) && deferred_draw_) { |
| deferred_draw_ = false; |
| ScheduleDraw(); |
| } |
| } |
| |
| void OnscreenDisplayClient::SetMemoryPolicy( |
| const cc::ManagedMemoryPolicy& policy) { |
| surface_display_output_surface_->SetMemoryPolicy(policy); |
| } |
| |
| } // namespace content |