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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "cc/trees/layer_tree_host_impl.h" | 5 #include "cc/trees/layer_tree_host_impl.h" |
6 | 6 |
7 #include <stddef.h> | 7 #include <stddef.h> |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <algorithm> | 10 #include <algorithm> |
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236 task_graph_runner_(task_graph_runner), | 236 task_graph_runner_(task_graph_runner), |
237 id_(id), | 237 id_(id), |
238 requires_high_res_to_draw_(false), | 238 requires_high_res_to_draw_(false), |
239 is_likely_to_require_a_draw_(false), | 239 is_likely_to_require_a_draw_(false), |
240 has_valid_compositor_frame_sink_(false), | 240 has_valid_compositor_frame_sink_(false), |
241 mutator_(nullptr), | 241 mutator_(nullptr), |
242 scroll_animating_latched_node_id_(ScrollTree::kInvalidNodeId), | 242 scroll_animating_latched_node_id_(ScrollTree::kInvalidNodeId), |
243 has_scrolled_by_wheel_(false), | 243 has_scrolled_by_wheel_(false), |
244 has_scrolled_by_touch_(false), | 244 has_scrolled_by_touch_(false), |
245 touchpad_and_wheel_scroll_latching_enabled_(false), | 245 touchpad_and_wheel_scroll_latching_enabled_(false), |
| 246 #if DCHECK_IS_ON() |
| 247 sync_state_(NOT_SYNCING), |
| 248 #endif |
246 impl_thread_phase_(ImplThreadPhase::IDLE) { | 249 impl_thread_phase_(ImplThreadPhase::IDLE) { |
247 DCHECK(mutator_host_); | 250 DCHECK(mutator_host_); |
248 mutator_host_->SetMutatorHostClient(this); | 251 mutator_host_->SetMutatorHostClient(this); |
249 | 252 |
250 DCHECK(task_runner_provider_->IsImplThread()); | 253 DCHECK(task_runner_provider_->IsImplThread()); |
251 DidVisibilityChange(this, visible_); | 254 DidVisibilityChange(this, visible_); |
252 | 255 |
253 SetDebugState(settings.initial_debug_state); | 256 SetDebugState(settings.initial_debug_state); |
254 | 257 |
255 // LTHI always has an active tree. | 258 // LTHI always has an active tree. |
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2039 | 2042 |
2040 client_->OnCanDrawStateChanged(CanDraw()); | 2043 client_->OnCanDrawStateChanged(CanDraw()); |
2041 TRACE_EVENT_ASYNC_BEGIN0("cc", "PendingTree:waiting", pending_tree_.get()); | 2044 TRACE_EVENT_ASYNC_BEGIN0("cc", "PendingTree:waiting", pending_tree_.get()); |
2042 | 2045 |
2043 DCHECK(!pending_tree_duration_timer_); | 2046 DCHECK(!pending_tree_duration_timer_); |
2044 pending_tree_duration_timer_.reset(new PendingTreeDurationHistogramTimer()); | 2047 pending_tree_duration_timer_.reset(new PendingTreeDurationHistogramTimer()); |
2045 } | 2048 } |
2046 | 2049 |
2047 void LayerTreeHostImpl::ActivateSyncTree() { | 2050 void LayerTreeHostImpl::ActivateSyncTree() { |
2048 if (pending_tree_) { | 2051 if (pending_tree_) { |
| 2052 DCHECK(AdvanceSyncState(BEGINNING_SYNC)); |
| 2053 |
2049 TRACE_EVENT_ASYNC_END0("cc", "PendingTree:waiting", pending_tree_.get()); | 2054 TRACE_EVENT_ASYNC_END0("cc", "PendingTree:waiting", pending_tree_.get()); |
2050 | 2055 |
2051 DCHECK(pending_tree_duration_timer_); | 2056 DCHECK(pending_tree_duration_timer_); |
2052 // Reset will call the destructor and log the timer histogram. | 2057 // Reset will call the destructor and log the timer histogram. |
2053 pending_tree_duration_timer_.reset(); | 2058 pending_tree_duration_timer_.reset(); |
2054 | 2059 |
2055 // Process any requests in the UI resource queue. The request queue is | 2060 // Process any requests in the UI resource queue. The request queue is |
2056 // given in LayerTreeHost::FinishCommitOnImplThread. This must take place | 2061 // given in LayerTreeHost::FinishCommitOnImplThread. This must take place |
2057 // before the swap. | 2062 // before the swap. |
2058 pending_tree_->ProcessUIResourceRequestQueue(); | 2063 pending_tree_->ProcessUIResourceRequestQueue(); |
2059 | 2064 |
2060 if (pending_tree_->needs_full_tree_sync()) { | 2065 if (pending_tree_->needs_full_tree_sync()) { |
2061 TreeSynchronizer::SynchronizeTrees(pending_tree_.get(), | 2066 TreeSynchronizer::SynchronizeTrees(pending_tree_.get(), |
2062 active_tree_.get()); | 2067 active_tree_.get()); |
2063 } | 2068 } |
2064 | 2069 |
2065 // Property trees may store damage status. We preserve the active tree | 2070 // Property trees may store damage status. We preserve the active tree |
2066 // damage status by pushing the damage status from active tree property | 2071 // damage status by pushing the damage status from active tree property |
2067 // trees to pending tree property trees or by moving it onto the layers. | 2072 // trees to pending tree property trees or by moving it onto the layers. |
2068 if (active_tree_->property_trees()->changed) { | 2073 if (active_tree_->property_trees()->changed) { |
2069 if (pending_tree_->property_trees()->sequence_number == | 2074 if (pending_tree_->property_trees()->sequence_number == |
2070 active_tree_->property_trees()->sequence_number) | 2075 active_tree_->property_trees()->sequence_number) |
2071 active_tree_->property_trees()->PushChangeTrackingTo( | 2076 active_tree_->property_trees()->PushChangeTrackingTo( |
2072 pending_tree_->property_trees()); | 2077 pending_tree_->property_trees()); |
2073 else | 2078 else |
2074 active_tree_->MoveChangeTrackingToLayers(); | 2079 active_tree_->MoveChangeTrackingToLayers(); |
2075 } | 2080 } |
2076 TreeSynchronizer::PushLayerProperties(pending_tree(), active_tree()); | 2081 |
2077 active_tree_->property_trees()->PushOpacityIfNeeded( | 2082 active_tree_->property_trees()->PushOpacityIfNeeded( |
2078 pending_tree_->property_trees()); | 2083 pending_tree_->property_trees()); |
| 2084 pending_tree_->PushPropertyTreesTo(active_tree_.get()); |
| 2085 DCHECK(AdvanceSyncState(SYNCED_PROPERTY_TREES)); |
| 2086 |
| 2087 TreeSynchronizer::PushLayerProperties(pending_tree(), active_tree()); |
| 2088 DCHECK(AdvanceSyncState(SYNCED_LAYER_PROPERTIES)); |
2079 | 2089 |
2080 pending_tree_->PushPropertiesTo(active_tree_.get()); | 2090 pending_tree_->PushPropertiesTo(active_tree_.get()); |
| 2091 DCHECK(AdvanceSyncState(SYNCED_LAYER_TREE_HOST_PROPERTIES)); |
| 2092 |
2081 if (!pending_tree_->LayerListIsEmpty()) | 2093 if (!pending_tree_->LayerListIsEmpty()) |
2082 pending_tree_->property_trees()->ResetAllChangeTracking(); | 2094 pending_tree_->property_trees()->ResetAllChangeTracking(); |
2083 | 2095 |
| 2096 DCHECK(AdvanceSyncState(NOT_SYNCING)); |
| 2097 |
2084 // Now that we've synced everything from the pending tree to the active | 2098 // Now that we've synced everything from the pending tree to the active |
2085 // tree, rename the pending tree the recycle tree so we can reuse it on the | 2099 // tree, rename the pending tree the recycle tree so we can reuse it on the |
2086 // next sync. | 2100 // next sync. |
2087 DCHECK(!recycle_tree_); | 2101 DCHECK(!recycle_tree_); |
2088 pending_tree_.swap(recycle_tree_); | 2102 pending_tree_.swap(recycle_tree_); |
2089 | 2103 |
2090 // If we commit to the active tree directly, this is already done during | 2104 // If we commit to the active tree directly, this is already done during |
2091 // commit. | 2105 // commit. |
2092 ActivateAnimations(); | 2106 ActivateAnimations(); |
2093 | 2107 |
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4303 | 4317 |
4304 void LayerTreeHostImpl::ShowScrollbarsForImplScroll(ElementId element_id) { | 4318 void LayerTreeHostImpl::ShowScrollbarsForImplScroll(ElementId element_id) { |
4305 if (!element_id) | 4319 if (!element_id) |
4306 return; | 4320 return; |
4307 if (ScrollbarAnimationController* animation_controller = | 4321 if (ScrollbarAnimationController* animation_controller = |
4308 ScrollbarAnimationControllerForElementId(element_id)) | 4322 ScrollbarAnimationControllerForElementId(element_id)) |
4309 animation_controller->DidScrollUpdate(); | 4323 animation_controller->DidScrollUpdate(); |
4310 } | 4324 } |
4311 | 4325 |
4312 } // namespace cc | 4326 } // namespace cc |
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