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eec74e5c92
Some components in the Flutter engine were derived from the forked blink codebase. While the forked components have either been removed or rewritten, the use of the blink namespace has mostly (and inconsistently) remained. This renames the blink namesapce to flutter for consistency. There are no functional changes in this patch.
76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/lib/ui/compositing/scene.h"
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#include "flutter/fml/trace_event.h"
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#include "flutter/lib/ui/painting/image.h"
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#include "flutter/lib/ui/painting/picture.h"
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#include "third_party/skia/include/core/SkImageInfo.h"
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#include "third_party/skia/include/core/SkSurface.h"
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#include "third_party/tonic/converter/dart_converter.h"
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#include "third_party/tonic/dart_args.h"
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#include "third_party/tonic/dart_binding_macros.h"
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#include "third_party/tonic/dart_library_natives.h"
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namespace flutter {
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IMPLEMENT_WRAPPERTYPEINFO(ui, Scene);
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#define FOR_EACH_BINDING(V) \
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V(Scene, toImage) \
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V(Scene, dispose)
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DART_BIND_ALL(Scene, FOR_EACH_BINDING)
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fml::RefPtr<Scene> Scene::create(std::shared_ptr<flow::Layer> rootLayer,
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uint32_t rasterizerTracingThreshold,
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bool checkerboardRasterCacheImages,
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bool checkerboardOffscreenLayers) {
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return fml::MakeRefCounted<Scene>(
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std::move(rootLayer), rasterizerTracingThreshold,
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checkerboardRasterCacheImages, checkerboardOffscreenLayers);
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}
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Scene::Scene(std::shared_ptr<flow::Layer> rootLayer,
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uint32_t rasterizerTracingThreshold,
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bool checkerboardRasterCacheImages,
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bool checkerboardOffscreenLayers)
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: m_layerTree(new flow::LayerTree()) {
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m_layerTree->set_root_layer(std::move(rootLayer));
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m_layerTree->set_rasterizer_tracing_threshold(rasterizerTracingThreshold);
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m_layerTree->set_checkerboard_raster_cache_images(
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checkerboardRasterCacheImages);
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m_layerTree->set_checkerboard_offscreen_layers(checkerboardOffscreenLayers);
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}
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Scene::~Scene() {}
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void Scene::dispose() {
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ClearDartWrapper();
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}
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Dart_Handle Scene::toImage(uint32_t width,
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uint32_t height,
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Dart_Handle raw_image_callback) {
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TRACE_EVENT0("flutter", "Scene::toImage");
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if (!m_layerTree) {
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return tonic::ToDart("Scene did not contain a layer tree.");
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}
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auto picture = m_layerTree->Flatten(SkRect::MakeWH(width, height));
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if (!picture) {
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return tonic::ToDart("Could not flatten scene into a layer tree.");
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}
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return Picture::RasterizeToImage(picture, width, height, raw_image_callback);
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}
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std::unique_ptr<flow::LayerTree> Scene::takeLayerTree() {
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return std::move(m_layerTree);
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}
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} // namespace flutter
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