| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright 2012 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/layers/picture_layer.h" | |
| 6 | |
| 7 #include "base/auto_reset.h" | |
| 8 #include "cc/layers/content_layer_client.h" | |
| 9 #include "cc/layers/picture_layer_impl.h" | |
| 10 #include "cc/resources/display_list_recording_source.h" | |
| 11 #include "cc/resources/picture_pile.h" | |
| 12 #include "cc/trees/layer_tree_host.h" | |
| 13 #include "cc/trees/layer_tree_impl.h" | |
| 14 #include "third_party/skia/include/core/SkPictureRecorder.h" | |
| 15 #include "ui/gfx/geometry/rect_conversions.h" | |
| 16 | |
| 17 namespace cc { | |
| 18 | |
| 19 scoped_refptr<PictureLayer> PictureLayer::Create(ContentLayerClient* client) { | |
| 20 return make_scoped_refptr(new PictureLayer(client)); | |
| 21 } | |
| 22 | |
| 23 PictureLayer::PictureLayer(ContentLayerClient* client) | |
| 24 : client_(client), | |
| 25 instrumentation_object_tracker_(id()), | |
| 26 update_source_frame_number_(-1), | |
| 27 is_mask_(false), | |
| 28 nearest_neighbor_(false) { | |
| 29 } | |
| 30 | |
| 31 PictureLayer::PictureLayer(ContentLayerClient* client, | |
| 32 scoped_ptr<RecordingSource> source) | |
| 33 : PictureLayer(client) { | |
| 34 recording_source_ = source.Pass(); | |
| 35 } | |
| 36 | |
| 37 PictureLayer::~PictureLayer() { | |
| 38 } | |
| 39 | |
| 40 scoped_ptr<LayerImpl> PictureLayer::CreateLayerImpl(LayerTreeImpl* tree_impl) { | |
| 41 return PictureLayerImpl::Create(tree_impl, id(), is_mask_, | |
| 42 new LayerImpl::SyncedScrollOffset); | |
| 43 } | |
| 44 | |
| 45 void PictureLayer::PushPropertiesTo(LayerImpl* base_layer) { | |
| 46 Layer::PushPropertiesTo(base_layer); | |
| 47 PictureLayerImpl* layer_impl = static_cast<PictureLayerImpl*>(base_layer); | |
| 48 // TODO(danakj): Make is_mask_ a constructor parameter for PictureLayer. | |
| 49 DCHECK_EQ(layer_impl->is_mask(), is_mask_); | |
| 50 | |
| 51 int source_frame_number = layer_tree_host()->source_frame_number(); | |
| 52 gfx::Size impl_bounds = layer_impl->bounds(); | |
| 53 gfx::Size recording_source_bounds = recording_source_->GetSize(); | |
| 54 | |
| 55 // If update called, then recording source size must match bounds pushed to | |
| 56 // impl layer. | |
| 57 DCHECK_IMPLIES(update_source_frame_number_ == source_frame_number, | |
| 58 impl_bounds == recording_source_bounds) | |
| 59 << " bounds " << impl_bounds.ToString() << " recording source " | |
| 60 << recording_source_bounds.ToString(); | |
| 61 | |
| 62 if (update_source_frame_number_ != source_frame_number && | |
| 63 recording_source_bounds != impl_bounds) { | |
| 64 // Update may not get called for the layer (if it's not in the viewport | |
| 65 // for example, even though it has resized making the recording source no | |
| 66 // longer valid. In this case just destroy the recording source. | |
| 67 recording_source_->SetEmptyBounds(); | |
| 68 } | |
| 69 | |
| 70 layer_impl->SetNearestNeighbor(nearest_neighbor_); | |
| 71 | |
| 72 // Preserve lcd text settings from the current raster source. | |
| 73 bool can_use_lcd_text = layer_impl->RasterSourceUsesLCDText(); | |
| 74 scoped_refptr<RasterSource> raster_source = | |
| 75 recording_source_->CreateRasterSource(can_use_lcd_text); | |
| 76 layer_impl->set_gpu_raster_max_texture_size( | |
| 77 layer_tree_host()->device_viewport_size()); | |
| 78 layer_impl->UpdateRasterSource(raster_source, &recording_invalidation_, | |
| 79 nullptr); | |
| 80 DCHECK(recording_invalidation_.IsEmpty()); | |
| 81 } | |
| 82 | |
| 83 void PictureLayer::SetLayerTreeHost(LayerTreeHost* host) { | |
| 84 Layer::SetLayerTreeHost(host); | |
| 85 if (!host) | |
| 86 return; | |
| 87 | |
| 88 if (!recording_source_) { | |
| 89 if (host->settings().use_display_lists) { | |
| 90 recording_source_.reset(new DisplayListRecordingSource); | |
| 91 } else { | |
| 92 recording_source_.reset( | |
| 93 new PicturePile(host->settings().minimum_contents_scale, | |
| 94 host->settings().default_tile_grid_size)); | |
| 95 } | |
| 96 } | |
| 97 recording_source_->DidMoveToNewCompositor(); | |
| 98 recording_source_->SetSlowdownRasterScaleFactor( | |
| 99 host->debug_state().slow_down_raster_scale_factor); | |
| 100 recording_source_->SetGatherPixelRefs(host->settings().gather_pixel_refs); | |
| 101 | |
| 102 DCHECK(host->settings().raster_enabled); | |
| 103 } | |
| 104 | |
| 105 void PictureLayer::SetNeedsDisplayRect(const gfx::Rect& layer_rect) { | |
| 106 if (!layer_rect.IsEmpty()) { | |
| 107 // Clamp invalidation to the layer bounds. | |
| 108 pending_invalidation_.Union( | |
| 109 gfx::IntersectRects(layer_rect, gfx::Rect(bounds()))); | |
| 110 } | |
| 111 Layer::SetNeedsDisplayRect(layer_rect); | |
| 112 } | |
| 113 | |
| 114 bool PictureLayer::Update(ResourceUpdateQueue* queue, | |
| 115 const OcclusionTracker<Layer>* occlusion) { | |
| 116 update_source_frame_number_ = layer_tree_host()->source_frame_number(); | |
| 117 bool updated = Layer::Update(queue, occlusion); | |
| 118 | |
| 119 gfx::Rect visible_layer_rect = gfx::ScaleToEnclosingRect( | |
| 120 visible_content_rect(), 1.f / contents_scale_x()); | |
| 121 gfx::Size layer_size = paint_properties().bounds; | |
| 122 | |
| 123 if (last_updated_visible_content_rect_ == visible_content_rect() && | |
| 124 recording_source_->GetSize() == layer_size && | |
| 125 pending_invalidation_.IsEmpty()) { | |
| 126 // Only early out if the visible content rect of this layer hasn't changed. | |
| 127 return updated; | |
| 128 } | |
| 129 | |
| 130 recording_source_->SetBackgroundColor(SafeOpaqueBackgroundColor()); | |
| 131 recording_source_->SetRequiresClear(!contents_opaque() && | |
| 132 !client_->FillsBoundsCompletely()); | |
| 133 | |
| 134 TRACE_EVENT1("cc", "PictureLayer::Update", | |
| 135 "source_frame_number", | |
| 136 layer_tree_host()->source_frame_number()); | |
| 137 devtools_instrumentation::ScopedLayerTreeTask update_layer( | |
| 138 devtools_instrumentation::kUpdateLayer, id(), layer_tree_host()->id()); | |
| 139 | |
| 140 // Calling paint in WebKit can sometimes cause invalidations, so save | |
| 141 // off the invalidation prior to calling update. | |
| 142 pending_invalidation_.Swap(&recording_invalidation_); | |
| 143 pending_invalidation_.Clear(); | |
| 144 | |
| 145 if (layer_tree_host()->settings().record_full_layer) { | |
| 146 // Workaround for http://crbug.com/235910 - to retain backwards compat | |
| 147 // the full page content must always be provided in the picture layer. | |
| 148 visible_layer_rect = gfx::Rect(layer_size); | |
| 149 } | |
| 150 | |
| 151 // UpdateAndExpandInvalidation will give us an invalidation that covers | |
| 152 // anything not explicitly recorded in this frame. We give this region | |
| 153 // to the impl side so that it drops tiles that may not have a recording | |
| 154 // for them. | |
| 155 DCHECK(client_); | |
| 156 updated |= recording_source_->UpdateAndExpandInvalidation( | |
| 157 client_, &recording_invalidation_, layer_size, visible_layer_rect, | |
| 158 update_source_frame_number_, RecordingSource::RECORD_NORMALLY); | |
| 159 last_updated_visible_content_rect_ = visible_content_rect(); | |
| 160 | |
| 161 if (updated) { | |
| 162 SetNeedsPushProperties(); | |
| 163 } else { | |
| 164 // If this invalidation did not affect the recording source, then it can be | |
| 165 // cleared as an optimization. | |
| 166 recording_invalidation_.Clear(); | |
| 167 } | |
| 168 | |
| 169 return updated; | |
| 170 } | |
| 171 | |
| 172 void PictureLayer::SetIsMask(bool is_mask) { | |
| 173 is_mask_ = is_mask; | |
| 174 } | |
| 175 | |
| 176 skia::RefPtr<SkPicture> PictureLayer::GetPicture() const { | |
| 177 // We could either flatten the RecordingSource into a single SkPicture, | |
| 178 // or paint a fresh one depending on what we intend to do with the | |
| 179 // picture. For now we just paint a fresh one to get consistent results. | |
| 180 if (!DrawsContent()) | |
| 181 return skia::RefPtr<SkPicture>(); | |
| 182 | |
| 183 int width = bounds().width(); | |
| 184 int height = bounds().height(); | |
| 185 | |
| 186 SkPictureRecorder recorder; | |
| 187 SkCanvas* canvas = recorder.beginRecording(width, height, nullptr, 0); | |
| 188 client_->PaintContents(canvas, gfx::Rect(width, height), | |
| 189 ContentLayerClient::PAINTING_BEHAVIOR_NORMAL); | |
| 190 skia::RefPtr<SkPicture> picture = skia::AdoptRef(recorder.endRecording()); | |
| 191 return picture; | |
| 192 } | |
| 193 | |
| 194 bool PictureLayer::IsSuitableForGpuRasterization() const { | |
| 195 return recording_source_->IsSuitableForGpuRasterization(); | |
| 196 } | |
| 197 | |
| 198 void PictureLayer::ClearClient() { | |
| 199 client_ = nullptr; | |
| 200 UpdateDrawsContent(HasDrawableContent()); | |
| 201 } | |
| 202 | |
| 203 void PictureLayer::SetNearestNeighbor(bool nearest_neighbor) { | |
| 204 if (nearest_neighbor_ == nearest_neighbor) | |
| 205 return; | |
| 206 | |
| 207 nearest_neighbor_ = nearest_neighbor; | |
| 208 SetNeedsCommit(); | |
| 209 } | |
| 210 | |
| 211 bool PictureLayer::HasDrawableContent() const { | |
| 212 return client_ && Layer::HasDrawableContent(); | |
| 213 } | |
| 214 | |
| 215 void PictureLayer::RunMicroBenchmark(MicroBenchmark* benchmark) { | |
| 216 benchmark->RunOnLayer(this); | |
| 217 } | |
| 218 | |
| 219 } // namespace cc | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1057283003:
Remove parts of //cc we aren't using (Closed)
Base URL: git@github.com:domokit/mojo.git@master