compositor.cc revision 46d4c2bc3267f3f028f39e7e311b0f89aba2e4fd
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/compositor.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <algorithm> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <deque> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/command_line.h" 1258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "base/debug/trace_event.h" 13ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch#include "base/message_loop/message_loop.h" 14a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "base/metrics/histogram.h" 155e3f23d412006dc4db4e659864679f29341e113fTorne (Richard Coles)#include "base/strings/string_util.h" 164e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)#include "base/sys_info.h" 17a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "cc/base/latency_info_swap_promise.h" 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/base/switches.h" 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/input/input_handler.h" 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/layers/layer.h" 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/output/context_provider.h" 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "cc/trees/layer_tree_host.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "third_party/skia/include/core/SkBitmap.h" 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/compositor_observer.h" 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/compositor_switches.h" 265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "ui/compositor/compositor_vsync_manager.h" 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/dip_util.h" 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/compositor/layer.h" 2946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)#include "ui/compositor/layer_animator_collection.h" 301e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)#include "ui/gfx/frame_time.h" 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gl/gl_context.h" 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gl/gl_switches.h" 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const double kDefaultRefreshRate = 60.0; 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)const double kTestRefreshRate = 200.0; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const int kCompositorLockTimeoutMs = 67; 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ui { 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)CompositorLock::CompositorLock(Compositor* compositor) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : compositor_(compositor) { 47c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::MessageLoop::current()->PostDelayedTask( 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&CompositorLock::CancelLock, AsWeakPtr()), 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta::FromMilliseconds(kCompositorLockTimeoutMs)); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)CompositorLock::~CompositorLock() { 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CancelLock(); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void CompositorLock::CancelLock() { 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!compositor_) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) compositor_->UnlockCompositor(); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) compositor_ = NULL; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ui 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ui { 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 72cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)Compositor::Compositor(gfx::AcceleratedWidget widget, 73cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) ui::ContextFactory* context_factory) 74cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) : context_factory_(context_factory), 75cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) root_layer_(NULL), 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) widget_(widget), 77cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) compositor_thread_loop_(context_factory->GetCompositorMessageLoop()), 785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) vsync_manager_(new CompositorVSyncManager()), 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) device_scale_factor_(0.0f), 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) last_started_frame_(0), 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) last_ended_frame_(0), 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) disable_schedule_composite_(false), 838bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) compositor_lock_(NULL), 848bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) defer_draw_scheduling_(false), 858bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) waiting_on_compositing_end_(false), 868bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) draw_on_compositing_end_(false), 87e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch swap_state_(SWAP_NONE), 8846d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) layer_animator_collection_(this), 890f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) schedule_draw_factory_(this) { 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_web_layer_ = cc::Layer::Create(); 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CommandLine* command_line = CommandLine::ForCurrentProcess(); 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) cc::LayerTreeSettings settings; 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.refresh_rate = 96cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) context_factory_->DoesCreateTestContexts() 97c2db58bd994c04d98e4ee2cd7565b71548655fe3Ben Murdoch ? kTestRefreshRate 98c2db58bd994c04d98e4ee2cd7565b71548655fe3Ben Murdoch : kDefaultRefreshRate; 99a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) settings.main_frame_before_draw_enabled = false; 100a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) settings.main_frame_before_activation_enabled = false; 101e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch settings.throttle_frame_production = 102e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch !command_line->HasSwitch(switches::kDisableGpuVsync); 10346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)#if !defined(OS_MACOSX) 1042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.partial_swap_enabled = 105c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) !command_line->HasSwitch(cc::switches::kUIDisablePartialSwap); 10646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)#endif 107a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#if defined(OS_CHROMEOS) 108a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) settings.per_tile_painting_enabled = true; 109a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#endif 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // These flags should be mirrored by renderer versions in content/renderer/. 1122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_debug_borders = 1132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowCompositedLayerBorders); 1142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_fps_counter = 1152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowFPSCounter); 116a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) settings.initial_debug_state.show_layer_animation_bounds_rects = 117a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowLayerAnimationBounds); 1182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_paint_rects = 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(switches::kUIShowPaintRects); 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_property_changed_rects = 1212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowPropertyChangedRects); 1222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_surface_damage_rects = 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowSurfaceDamageRects); 1242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_screen_space_rects = 1252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowScreenSpaceRects); 1262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_replica_screen_space_rects = 1272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowReplicaScreenSpaceRects); 1282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_occluding_rects = 1292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowOccludingRects); 1302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) settings.initial_debug_state.show_non_occluding_rects = 1312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) command_line->HasSwitch(cc::switches::kUIShowNonOccludingRects); 1322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) settings.initial_debug_state.SetRecordRenderingStats( 1345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking)); 1355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 136a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) settings.impl_side_painting = IsUIImplSidePaintingEnabled(); 1375c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu settings.use_zero_copy = IsUIZeroCopyEnabled(); 138a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 139a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) base::TimeTicks before_create = base::TimeTicks::Now(); 140cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (compositor_thread_loop_) { 141f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) host_ = cc::LayerTreeHost::CreateThreaded( 142a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) this, 143cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) context_factory_->GetSharedBitmapManager(), 144a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) settings, 145cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) compositor_thread_loop_); 146f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } else { 147a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) host_ = cc::LayerTreeHost::CreateSingleThreaded( 148cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) this, this, context_factory_->GetSharedBitmapManager(), settings); 149f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 150a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) UMA_HISTOGRAM_TIMES("GPU.CreateBrowserCompositor", 151a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) base::TimeTicks::Now() - before_create); 1522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) host_->SetRootLayer(root_web_layer_); 153b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) host_->SetLayerTreeHostClientReady(); 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Compositor::~Compositor() { 15758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) TRACE_EVENT0("shutdown", "Compositor::destructor"); 15858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CancelCompositorLock(); 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!compositor_lock_); 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (root_layer_) 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) root_layer_->SetCompositor(NULL); 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Stop all outstanding draws before telling the ContextFactory to tear 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // down any contexts that the |host_| may rely upon. 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) host_.reset(); 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 169cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) context_factory_->RemoveCompositor(this); 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::ScheduleDraw() { 173cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (compositor_thread_loop_) { 174cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) host_->SetNeedsCommit(); 1758bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } else if (!defer_draw_scheduling_) { 1768bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) defer_draw_scheduling_ = true; 1778bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) base::MessageLoop::current()->PostTask( 1788bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) FROM_HERE, 1798bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) base::Bind(&Compositor::Draw, schedule_draw_factory_.GetWeakPtr())); 1808bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::SetRootLayer(Layer* root_layer) { 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (root_layer_ == root_layer) 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (root_layer_) 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) root_layer_->SetCompositor(NULL); 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) root_layer_ = root_layer; 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (root_layer_ && !root_layer_->GetCompositor()) 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) root_layer_->SetCompositor(this); 1912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_web_layer_->RemoveAllChildren(); 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (root_layer_) 1932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_web_layer_->AddChild(root_layer_->cc_layer()); 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::SetHostHasTransparentBackground( 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool host_has_transparent_background) { 1982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) host_->set_has_transparent_background(host_has_transparent_background); 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 201c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void Compositor::Draw() { 202cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) DCHECK(!compositor_thread_loop_); 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2048bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) defer_draw_scheduling_ = false; 2058bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) if (waiting_on_compositing_end_) { 2068bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) draw_on_compositing_end_ = true; 2078bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) return; 2088bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 2098bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) waiting_on_compositing_end_ = true; 2108bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 2118bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) TRACE_EVENT_ASYNC_BEGIN0("ui", "Compositor::Draw", last_started_frame_ + 1); 2128bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!root_layer_) 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 216e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch DCHECK_NE(swap_state_, SWAP_POSTED); 217e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch swap_state_ = SWAP_NONE; 218e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) last_started_frame_++; 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!IsLocked()) { 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(nduca): Temporary while compositor calls 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // compositeImmediately() directly. 22346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) base::TimeTicks now = gfx::FrameTime::Now(); 22446d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) Animate(now); 2252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Layout(); 22646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) host_->Composite(now); 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 228e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (swap_state_ == SWAP_NONE) 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NotifyEnd(); 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 232c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void Compositor::ScheduleFullRedraw() { 2332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) host_->SetNeedsRedraw(); 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 236c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void Compositor::ScheduleRedrawRect(const gfx::Rect& damage_rect) { 237c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) host_->SetNeedsRedrawRect(damage_rect); 238c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 239c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 240cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)void Compositor::FinishAllRendering() { 241cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) host_->FinishAllRendering(); 242cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)} 243cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 244868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)void Compositor::SetLatencyInfo(const ui::LatencyInfo& latency_info) { 245a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) scoped_ptr<cc::SwapPromise> swap_promise( 246a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) new cc::LatencyInfoSwapPromise(latency_info)); 247a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) host_->QueueSwapPromise(swap_promise.Pass()); 248868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)} 249868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::SetScaleAndSize(float scale, const gfx::Size& size_in_pixel) { 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_GT(scale, 0); 2522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (!size_in_pixel.IsEmpty()) { 2532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) size_ = size_in_pixel; 254c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) host_->SetViewportSize(size_in_pixel); 2552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) root_web_layer_->SetBounds(size_in_pixel); 2562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (device_scale_factor_ != scale) { 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) device_scale_factor_ = scale; 259cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) host_->SetDeviceScaleFactor(scale); 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (root_layer_) 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) root_layer_->OnDeviceScaleFactorChanged(scale); 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void Compositor::SetBackgroundColor(SkColor color) { 266c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) host_->set_background_color(color); 267c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ScheduleDraw(); 268c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 269c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 2705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)scoped_refptr<CompositorVSyncManager> Compositor::vsync_manager() const { 2715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return vsync_manager_; 2725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::AddObserver(CompositorObserver* observer) { 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) observer_list_.AddObserver(observer); 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::RemoveObserver(CompositorObserver* observer) { 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) observer_list_.RemoveObserver(observer); 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool Compositor::HasObserver(CompositorObserver* observer) { 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return observer_list_.HasObserver(observer); 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 28646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)void Compositor::Animate(base::TimeTicks frame_begin_time) { 28746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) layer_animator_collection_.Progress(frame_begin_time); 28846d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) if (layer_animator_collection_.HasActiveAnimators()) 28946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) host_->SetNeedsAnimate(); 29046d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 29146d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) 2922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void Compositor::Layout() { 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We're sending damage that will be addressed during this composite 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // cycle, so we don't need to schedule another composite to address it. 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) disable_schedule_composite_ = true; 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (root_layer_) 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) root_layer_->SendDamagedRects(); 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) disable_schedule_composite_ = false; 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 301a36e5920737c6adbddd3e43b760e5de8431db6e0Torne (Richard Coles)scoped_ptr<cc::OutputSurface> Compositor::CreateOutputSurface(bool fallback) { 302cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return context_factory_->CreateOutputSurface(this, fallback); 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void Compositor::DidCommit() { 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLocked()); 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FOR_EACH_OBSERVER(CompositorObserver, 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) observer_list_, 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OnCompositingDidCommit(this)); 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void Compositor::DidCommitAndDrawFrame() { 3131e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) base::TimeTicks start_time = gfx::FrameTime::Now(); 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FOR_EACH_OBSERVER(CompositorObserver, 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) observer_list_, 3162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) OnCompositingStarted(this, start_time)); 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void Compositor::DidCompleteSwapBuffers() { 320cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (compositor_thread_loop_) { 321f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) NotifyEnd(); 322f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } else { 323e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch DCHECK_EQ(swap_state_, SWAP_POSTED); 324e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch NotifyEnd(); 325e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch swap_state_ = SWAP_COMPLETED; 326f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 327f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} 328f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 3292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void Compositor::ScheduleComposite() { 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!disable_schedule_composite_) 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ScheduleDraw(); 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 334f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)void Compositor::ScheduleAnimation() { 335f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) ScheduleComposite(); 336f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} 337f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 338f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)void Compositor::DidPostSwapBuffers() { 339cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) DCHECK(!compositor_thread_loop_); 340e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch DCHECK_EQ(swap_state_, SWAP_NONE); 341e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch swap_state_ = SWAP_POSTED; 342f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)} 343f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 344f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)void Compositor::DidAbortSwapBuffers() { 345cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!compositor_thread_loop_) { 346e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch if (swap_state_ == SWAP_POSTED) { 347e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch NotifyEnd(); 348e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch swap_state_ = SWAP_COMPLETED; 349f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 350f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) } 351f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 352f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) FOR_EACH_OBSERVER(CompositorObserver, 353f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) observer_list_, 354f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) OnCompositingAborted(this)); 3552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 3562a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 35746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)void Compositor::ScheduleAnimationForLayerCollection() { 35846d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) host_->SetNeedsAnimate(); 35946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 36046d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) 361c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)const cc::LayerTreeDebugState& Compositor::GetLayerTreeDebugState() const { 362c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return host_->debug_state(); 363c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 364c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 365c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void Compositor::SetLayerTreeDebugState( 366c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const cc::LayerTreeDebugState& debug_state) { 367c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) host_->SetDebugState(debug_state); 368c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 369c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)scoped_refptr<CompositorLock> Compositor::GetCompositorLock() { 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!compositor_lock_) { 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) compositor_lock_ = new CompositorLock(this); 373cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (compositor_thread_loop_) 3742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) host_->SetDeferCommits(true); 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FOR_EACH_OBSERVER(CompositorObserver, 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) observer_list_, 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OnCompositingLockStateChanged(this)); 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return compositor_lock_; 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::UnlockCompositor() { 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(compositor_lock_); 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) compositor_lock_ = NULL; 385cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (compositor_thread_loop_) 3862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) host_->SetDeferCommits(false); 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FOR_EACH_OBSERVER(CompositorObserver, 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) observer_list_, 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OnCompositingLockStateChanged(this)); 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::CancelCompositorLock() { 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (compositor_lock_) 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) compositor_lock_->CancelLock(); 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void Compositor::NotifyEnd() { 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) last_ended_frame_++; 3998bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) TRACE_EVENT_ASYNC_END0("ui", "Compositor::Draw", last_ended_frame_); 4008bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) waiting_on_compositing_end_ = false; 4018bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) if (draw_on_compositing_end_) { 4028bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) draw_on_compositing_end_ = false; 4038bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) 4048bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // Call ScheduleDraw() instead of Draw() in order to allow other 4058bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // CompositorObservers to be notified before starting another 4068bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) // draw cycle. 4078bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) ScheduleDraw(); 4088bcbed890bc3ce4d7a057a8f32cab53fa534672eTorne (Richard Coles) } 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FOR_EACH_OBSERVER(CompositorObserver, 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) observer_list_, 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OnCompositingEnded(this)); 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ui 415