mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
d117ac979c
* Remove erroneous ChildView opacity * Wire frame metrics through contexts * Maintain layer stack inside of SceneBuilder * Remove EnsureSingleChild * Centralize system-composite and elevation logic * Wire up OpacityLayer to Scenic
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
// 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 "flutter/lib/ui/ui_dart_state.h"
|
|
#include "flutter/lib/ui/window/window.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 flutter {
|
|
|
|
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<flutter::Layer> rootLayer,
|
|
uint32_t rasterizerTracingThreshold,
|
|
bool checkerboardRasterCacheImages,
|
|
bool checkerboardOffscreenLayers) {
|
|
return fml::MakeRefCounted<Scene>(
|
|
std::move(rootLayer), rasterizerTracingThreshold,
|
|
checkerboardRasterCacheImages, checkerboardOffscreenLayers);
|
|
}
|
|
|
|
Scene::Scene(std::shared_ptr<flutter::Layer> rootLayer,
|
|
uint32_t rasterizerTracingThreshold,
|
|
bool checkerboardRasterCacheImages,
|
|
bool checkerboardOffscreenLayers) {
|
|
auto viewport_metrics = UIDartState::Current()->window()->viewport_metrics();
|
|
|
|
layer_tree_ = std::make_unique<LayerTree>(
|
|
SkISize::Make(viewport_metrics.physical_width,
|
|
viewport_metrics.physical_height),
|
|
static_cast<float>(viewport_metrics.physical_depth),
|
|
static_cast<float>(viewport_metrics.device_pixel_ratio));
|
|
layer_tree_->set_root_layer(std::move(rootLayer));
|
|
layer_tree_->set_rasterizer_tracing_threshold(rasterizerTracingThreshold);
|
|
layer_tree_->set_checkerboard_raster_cache_images(
|
|
checkerboardRasterCacheImages);
|
|
layer_tree_->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 (!layer_tree_) {
|
|
return tonic::ToDart("Scene did not contain a layer tree.");
|
|
}
|
|
|
|
auto picture = layer_tree_->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<flutter::LayerTree> Scene::takeLayerTree() {
|
|
return std::move(layer_tree_);
|
|
}
|
|
|
|
} // namespace flutter
|