| // Copyright 2013 The Flutter 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 "flutter/lib/ui/compositing/scene.h" |
| |
| #include "flutter/fml/trace_event.h" |
| #include "flutter/lib/ui/painting/image.h" |
| #include "flutter/lib/ui/painting/picture.h" |
| #include "third_party/skia/include/core/SkImageInfo.h" |
| #include "third_party/skia/include/core/SkSurface.h" |
| #include "third_party/tonic/converter/dart_converter.h" |
| #include "third_party/tonic/dart_args.h" |
| #include "third_party/tonic/dart_binding_macros.h" |
| #include "third_party/tonic/dart_library_natives.h" |
| |
| namespace blink { |
| |
| IMPLEMENT_WRAPPERTYPEINFO(ui, Scene); |
| |
| #define FOR_EACH_BINDING(V) \ |
| V(Scene, toImage) \ |
| V(Scene, dispose) |
| |
| DART_BIND_ALL(Scene, FOR_EACH_BINDING) |
| |
| fml::RefPtr<Scene> Scene::create(std::shared_ptr<flow::Layer> rootLayer, |
| uint32_t rasterizerTracingThreshold, |
| bool checkerboardRasterCacheImages, |
| bool checkerboardOffscreenLayers) { |
| return fml::MakeRefCounted<Scene>( |
| std::move(rootLayer), rasterizerTracingThreshold, |
| checkerboardRasterCacheImages, checkerboardOffscreenLayers); |
| } |
| |
| Scene::Scene(std::shared_ptr<flow::Layer> rootLayer, |
| uint32_t rasterizerTracingThreshold, |
| bool checkerboardRasterCacheImages, |
| bool checkerboardOffscreenLayers) |
| : m_layerTree(new flow::LayerTree()) { |
| m_layerTree->set_root_layer(std::move(rootLayer)); |
| m_layerTree->set_rasterizer_tracing_threshold(rasterizerTracingThreshold); |
| m_layerTree->set_checkerboard_raster_cache_images( |
| checkerboardRasterCacheImages); |
| m_layerTree->set_checkerboard_offscreen_layers(checkerboardOffscreenLayers); |
| } |
| |
| Scene::~Scene() {} |
| |
| void Scene::dispose() { |
| ClearDartWrapper(); |
| } |
| |
| Dart_Handle Scene::toImage(uint32_t width, |
| uint32_t height, |
| Dart_Handle raw_image_callback) { |
| TRACE_EVENT0("flutter", "Scene::toImage"); |
| |
| if (!m_layerTree) { |
| return tonic::ToDart("Scene did not contain a layer tree."); |
| } |
| |
| auto picture = m_layerTree->Flatten(SkRect::MakeWH(width, height)); |
| if (!picture) { |
| return tonic::ToDart("Could not flatten scene into a layer tree."); |
| } |
| |
| return Picture::RasterizeToImage(picture, width, height, raw_image_callback); |
| } |
| |
| std::unique_ptr<flow::LayerTree> Scene::takeLayerTree() { |
| return std::move(m_layerTree); |
| } |
| |
| } // namespace blink |