| // 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 "cc/playback/display_item_list.h" |
| |
| #include <stddef.h> |
| |
| #include <string> |
| |
| #include "base/numerics/safe_conversions.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/trace_event/trace_event.h" |
| #include "base/trace_event/trace_event_argument.h" |
| #include "cc/base/math_util.h" |
| #include "cc/debug/picture_debug_util.h" |
| #include "cc/debug/traced_display_item_list.h" |
| #include "cc/debug/traced_value.h" |
| #include "cc/playback/clip_display_item.h" |
| #include "cc/playback/clip_path_display_item.h" |
| #include "cc/playback/compositing_display_item.h" |
| #include "cc/playback/display_item_list_settings.h" |
| #include "cc/playback/display_item_proto_factory.h" |
| #include "cc/playback/drawing_display_item.h" |
| #include "cc/playback/filter_display_item.h" |
| #include "cc/playback/float_clip_display_item.h" |
| #include "cc/playback/largest_display_item.h" |
| #include "cc/playback/transform_display_item.h" |
| #include "cc/proto/display_item.pb.h" |
| #include "cc/proto/gfx_conversions.h" |
| #include "third_party/skia/include/core/SkCanvas.h" |
| #include "third_party/skia/include/core/SkPictureRecorder.h" |
| #include "third_party/skia/include/utils/SkPictureUtils.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "ui/gfx/geometry/rect_conversions.h" |
| #include "ui/gfx/skia_util.h" |
| |
| namespace cc { |
| |
| namespace { |
| |
| // We don't perform per-layer solid color analysis when there are too many skia |
| // operations. |
| const int kOpCountThatIsOkToAnalyze = 10; |
| |
| bool DisplayItemsTracingEnabled() { |
| bool tracing_enabled; |
| TRACE_EVENT_CATEGORY_GROUP_ENABLED( |
| TRACE_DISABLED_BY_DEFAULT("cc.debug.display_items"), &tracing_enabled); |
| return tracing_enabled; |
| } |
| |
| bool GetCanvasClipBounds(SkCanvas* canvas, gfx::Rect* clip_bounds) { |
| SkRect canvas_clip_bounds; |
| if (!canvas->getClipBounds(&canvas_clip_bounds)) |
| return false; |
| *clip_bounds = ToEnclosingRect(gfx::SkRectToRectF(canvas_clip_bounds)); |
| return true; |
| } |
| |
| const int kDefaultNumDisplayItemsToReserve = 100; |
| |
| } // namespace |
| |
| DisplayItemList::Inputs::Inputs(const DisplayItemListSettings& settings) |
| : items(LargestDisplayItemSize(), |
| LargestDisplayItemSize() * kDefaultNumDisplayItemsToReserve), |
| settings(settings) {} |
| |
| DisplayItemList::Inputs::~Inputs() {} |
| |
| scoped_refptr<DisplayItemList> DisplayItemList::Create( |
| const DisplayItemListSettings& settings) { |
| return make_scoped_refptr(new DisplayItemList(settings)); |
| } |
| |
| scoped_refptr<DisplayItemList> DisplayItemList::CreateFromProto( |
| const proto::DisplayItemList& proto, |
| ClientPictureCache* client_picture_cache, |
| std::vector<uint32_t>* used_engine_picture_ids) { |
| scoped_refptr<DisplayItemList> list = |
| DisplayItemList::Create(DisplayItemListSettings(proto.settings())); |
| |
| for (int i = 0; i < proto.items_size(); i++) { |
| const proto::DisplayItem& item_proto = proto.items(i); |
| const gfx::Rect visual_rect = ProtoToRect(proto.visual_rects(i)); |
| DisplayItemProtoFactory::AllocateAndConstruct( |
| visual_rect, list.get(), item_proto, client_picture_cache, |
| used_engine_picture_ids); |
| } |
| |
| list->Finalize(); |
| |
| return list; |
| } |
| |
| DisplayItemList::DisplayItemList(const DisplayItemListSettings& settings) |
| : inputs_(settings) {} |
| |
| DisplayItemList::~DisplayItemList() { |
| } |
| |
| void DisplayItemList::ToProtobuf(proto::DisplayItemList* proto) { |
| // The flattened SkPicture approach is going away, and the proto |
| // doesn't currently support serializing that flattened picture. |
| inputs_.settings.ToProtobuf(proto->mutable_settings()); |
| |
| DCHECK_EQ(0, proto->items_size()); |
| DCHECK_EQ(0, proto->visual_rects_size()); |
| DCHECK(inputs_.items.size() == inputs_.visual_rects.size()) |
| << "items.size() " << inputs_.items.size() << " visual_rects.size() " |
| << inputs_.visual_rects.size(); |
| int i = 0; |
| for (const auto& item : inputs_.items) { |
| RectToProto(inputs_.visual_rects[i++], proto->add_visual_rects()); |
| item.ToProtobuf(proto->add_items()); |
| } |
| } |
| |
| void DisplayItemList::Raster(SkCanvas* canvas, |
| SkPicture::AbortCallback* callback, |
| const gfx::Rect& canvas_target_playback_rect, |
| float contents_scale) const { |
| canvas->save(); |
| if (!canvas_target_playback_rect.IsEmpty()) { |
| // canvas_target_playback_rect is specified in device space. We can't |
| // use clipRect because canvas CTM will be applied on it. Use clipRegion |
| // instead because it ignores canvas CTM. |
| SkRegion device_clip; |
| device_clip.setRect(gfx::RectToSkIRect(canvas_target_playback_rect)); |
| canvas->clipRegion(device_clip); |
| } |
| canvas->scale(contents_scale, contents_scale); |
| Raster(canvas, callback); |
| canvas->restore(); |
| } |
| |
| DISABLE_CFI_PERF |
| void DisplayItemList::Raster(SkCanvas* canvas, |
| SkPicture::AbortCallback* callback) const { |
| gfx::Rect canvas_playback_rect; |
| if (!GetCanvasClipBounds(canvas, &canvas_playback_rect)) |
| return; |
| |
| std::vector<size_t> indices; |
| rtree_.Search(canvas_playback_rect, &indices); |
| for (size_t index : indices) { |
| inputs_.items[index].Raster(canvas, callback); |
| // We use a callback during solid color analysis on the compositor thread to |
| // break out early. Since we're handling a sequence of pictures via rtree |
| // query results ourselves, we have to respect the callback and early out. |
| if (callback && callback->abort()) |
| break; |
| } |
| } |
| |
| void DisplayItemList::GrowCurrentBeginItemVisualRect( |
| const gfx::Rect& visual_rect) { |
| if (!inputs_.begin_item_indices.empty()) |
| inputs_.visual_rects[inputs_.begin_item_indices.back()].Union(visual_rect); |
| } |
| |
| void DisplayItemList::Finalize() { |
| TRACE_EVENT0("cc", "DisplayItemList::Finalize"); |
| // TODO(dtrainor): Need to deal with serializing inputs_.visual_rects. |
| // http://crbug.com/568757. |
| DCHECK(inputs_.items.size() == inputs_.visual_rects.size()) |
| << "items.size() " << inputs_.items.size() << " visual_rects.size() " |
| << inputs_.visual_rects.size(); |
| rtree_.Build(inputs_.visual_rects); |
| |
| // TODO(wkorman): Restore the below, potentially with a switch to allow |
| // clearing visual rects except for Blimp engine. http://crbug.com/633750 |
| // if (!retain_visual_rects_) |
| // // This clears both the vector and the vector's capacity, since |
| // // visual_rects won't be used anymore. |
| // std::vector<gfx::Rect>().swap(inputs_.visual_rects); |
| } |
| |
| bool DisplayItemList::IsSuitableForGpuRasterization() const { |
| // TODO(wkorman): This is more permissive than Picture's implementation, since |
| // none of the items might individually trigger a veto even though they |
| // collectively have enough "bad" operations that a corresponding Picture |
| // would get vetoed. See crbug.com/513016. |
| return inputs_.all_items_are_suitable_for_gpu_rasterization; |
| } |
| |
| int DisplayItemList::ApproximateOpCount() const { |
| return approximate_op_count_; |
| } |
| |
| size_t DisplayItemList::ApproximateMemoryUsage() const { |
| size_t memory_usage = sizeof(*this); |
| |
| size_t external_memory_usage = 0; |
| // Warning: this double-counts SkPicture data if use_cached_picture is |
| // also true. |
| for (const auto& item : inputs_.items) { |
| size_t bytes = 0; |
| switch (item.type()) { |
| case DisplayItem::CLIP: |
| bytes = static_cast<const ClipDisplayItem&>(item).ExternalMemoryUsage(); |
| break; |
| case DisplayItem::CLIP_PATH: |
| bytes = |
| static_cast<const ClipPathDisplayItem&>(item).ExternalMemoryUsage(); |
| break; |
| case DisplayItem::COMPOSITING: |
| bytes = static_cast<const CompositingDisplayItem&>(item) |
| .ExternalMemoryUsage(); |
| break; |
| case DisplayItem::DRAWING: |
| bytes = |
| static_cast<const DrawingDisplayItem&>(item).ExternalMemoryUsage(); |
| break; |
| case DisplayItem::FLOAT_CLIP: |
| bytes = static_cast<const FloatClipDisplayItem&>(item) |
| .ExternalMemoryUsage(); |
| break; |
| case DisplayItem::FILTER: |
| bytes = |
| static_cast<const FilterDisplayItem&>(item).ExternalMemoryUsage(); |
| break; |
| case DisplayItem::TRANSFORM: |
| bytes = static_cast<const TransformDisplayItem&>(item) |
| .ExternalMemoryUsage(); |
| break; |
| case DisplayItem::END_CLIP: |
| case DisplayItem::END_CLIP_PATH: |
| case DisplayItem::END_COMPOSITING: |
| case DisplayItem::END_FLOAT_CLIP: |
| case DisplayItem::END_FILTER: |
| case DisplayItem::END_TRANSFORM: |
| break; |
| } |
| external_memory_usage += bytes; |
| } |
| |
| // Memory outside this class due to |items_|. |
| memory_usage += inputs_.items.GetCapacityInBytes() + external_memory_usage; |
| |
| // TODO(jbroman): Does anything else owned by this class substantially |
| // contribute to memory usage? |
| // TODO(vmpstr): Probably DiscardableImageMap is worth counting here. |
| |
| return memory_usage; |
| } |
| |
| bool DisplayItemList::ShouldBeAnalyzedForSolidColor() const { |
| return ApproximateOpCount() <= kOpCountThatIsOkToAnalyze; |
| } |
| |
| std::unique_ptr<base::trace_event::ConvertableToTraceFormat> |
| DisplayItemList::AsValue(bool include_items) const { |
| std::unique_ptr<base::trace_event::TracedValue> state( |
| new base::trace_event::TracedValue()); |
| |
| state->BeginDictionary("params"); |
| if (include_items) { |
| state->BeginArray("items"); |
| size_t item_index = 0; |
| for (const DisplayItem& item : inputs_.items) { |
| item.AsValueInto(item_index < inputs_.visual_rects.size() |
| ? inputs_.visual_rects[item_index] |
| : gfx::Rect(), |
| state.get()); |
| item_index++; |
| } |
| state->EndArray(); // "items". |
| } |
| state->SetValue("layer_rect", MathUtil::AsValue(rtree_.GetBounds())); |
| state->EndDictionary(); // "params". |
| |
| SkPictureRecorder recorder; |
| gfx::Rect bounds = rtree_.GetBounds(); |
| SkCanvas* canvas = recorder.beginRecording(bounds.width(), bounds.height()); |
| canvas->translate(-bounds.x(), -bounds.y()); |
| canvas->clipRect(gfx::RectToSkRect(bounds)); |
| Raster(canvas, nullptr, gfx::Rect(), 1.f); |
| sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture(); |
| |
| std::string b64_picture; |
| PictureDebugUtil::SerializeAsBase64(picture.get(), &b64_picture); |
| state->SetString("skp64", b64_picture); |
| |
| return std::move(state); |
| } |
| |
| void DisplayItemList::EmitTraceSnapshot() const { |
| TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID( |
| TRACE_DISABLED_BY_DEFAULT("cc.debug.display_items") "," |
| TRACE_DISABLED_BY_DEFAULT("cc.debug.picture") "," |
| TRACE_DISABLED_BY_DEFAULT("devtools.timeline.picture"), |
| "cc::DisplayItemList", this, |
| TracedDisplayItemList::AsTraceableDisplayItemList(this, |
| DisplayItemsTracingEnabled())); |
| } |
| |
| void DisplayItemList::GenerateDiscardableImagesMetadata() { |
| // This should be only called once, and only after CreateAndCacheSkPicture. |
| DCHECK(image_map_.empty()); |
| |
| gfx::Rect bounds = rtree_.GetBounds(); |
| DiscardableImageMap::ScopedMetadataGenerator generator( |
| &image_map_, gfx::Size(bounds.right(), bounds.bottom())); |
| Raster(generator.canvas(), nullptr, gfx::Rect(), 1.f); |
| } |
| |
| void DisplayItemList::GetDiscardableImagesInRect( |
| const gfx::Rect& rect, |
| const gfx::SizeF& raster_scales, |
| std::vector<DrawImage>* images) { |
| image_map_.GetDiscardableImagesInRect(rect, raster_scales, images); |
| } |
| |
| } // namespace cc |