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5a2bf6aa4c
Reland #19396 with a fix for improper scale that was affecting internal tests Tested: Ran all unittests, ran internal tests, and ran workstation on Fuchsia BUG: 53062, 53063
89 lines
3.0 KiB
C++
89 lines
3.0 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 "flutter/lib/ui/ui_dart_state.h"
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#include "flutter/lib/ui/window/platform_configuration.h"
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#include "flutter/lib/ui/window/window.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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void Scene::create(Dart_Handle scene_handle,
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std::shared_ptr<flutter::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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auto scene = fml::MakeRefCounted<Scene>(
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std::move(rootLayer), rasterizerTracingThreshold,
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checkerboardRasterCacheImages, checkerboardOffscreenLayers);
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scene->AssociateWithDartWrapper(scene_handle);
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}
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Scene::Scene(std::shared_ptr<flutter::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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auto viewport_metrics = UIDartState::Current()
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->platform_configuration()
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->window()
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->viewport_metrics();
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layer_tree_ = std::make_unique<LayerTree>(
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SkISize::Make(viewport_metrics.physical_width,
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viewport_metrics.physical_height),
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static_cast<float>(viewport_metrics.device_pixel_ratio));
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layer_tree_->set_root_layer(std::move(rootLayer));
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layer_tree_->set_rasterizer_tracing_threshold(rasterizerTracingThreshold);
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layer_tree_->set_checkerboard_raster_cache_images(
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checkerboardRasterCacheImages);
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layer_tree_->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 (!layer_tree_) {
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return tonic::ToDart("Scene did not contain a layer tree.");
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}
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auto picture = layer_tree_->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<flutter::LayerTree> Scene::takeLayerTree() {
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return std::move(layer_tree_);
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}
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} // namespace flutter
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