blob: 39a88a30ae05c5505ccc2cb534b4a71e8c37ac62 [file] [log] [blame]
// 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 <stdint.h>
#include <memory>
#include "flutter/flow/compositor_context.h"
#include "flutter/flow/layers/layer.h"
#include "flutter/fml/macros.h"
#include "flutter/fml/time/time_delta.h"
#include "third_party/skia/include/core/SkPicture.h"
#include "third_party/skia/include/core/SkSize.h"
namespace flutter {
class LayerTree {
LayerTree(const SkISize& frame_size,
float frame_physical_depth,
float frame_device_pixel_ratio);
// Perform a preroll pass on the tree and return information about
// the tree that affects rendering this frame.
// Returns:
// - a boolean indicating whether or not the top level of the
// layer tree performs any operations that require readback
// from the root surface.
bool Preroll(CompositorContext::ScopedFrame& frame,
bool ignore_raster_cache = false);
#if defined(OS_FUCHSIA)
void UpdateScene(SceneUpdateContext& context,
scenic::ContainerNode& container);
void Paint(CompositorContext::ScopedFrame& frame,
bool ignore_raster_cache = false) const;
sk_sp<SkPicture> Flatten(const SkRect& bounds);
Layer* root_layer() const { return root_layer_.get(); }
void set_root_layer(std::shared_ptr<Layer> root_layer) {
root_layer_ = std::move(root_layer);
const SkISize& frame_size() const { return frame_size_; }
float frame_physical_depth() const { return frame_physical_depth_; }
float frame_device_pixel_ratio() const { return frame_device_pixel_ratio_; }
void RecordBuildTime(fml::TimePoint build_start, fml::TimePoint target_time);
fml::TimePoint build_start() const { return build_start_; }
fml::TimePoint build_finish() const { return build_finish_; }
fml::TimeDelta build_time() const { return build_finish_ - build_start_; }
fml::TimePoint target_time() const { return target_time_; }
// The number of frame intervals missed after which the compositor must
// trace the rasterized picture to a trace file. Specify 0 to disable all
// tracing
void set_rasterizer_tracing_threshold(uint32_t interval) {
rasterizer_tracing_threshold_ = interval;
uint32_t rasterizer_tracing_threshold() const {
return rasterizer_tracing_threshold_;
void set_checkerboard_raster_cache_images(bool checkerboard) {
checkerboard_raster_cache_images_ = checkerboard;
void set_checkerboard_offscreen_layers(bool checkerboard) {
checkerboard_offscreen_layers_ = checkerboard;
double device_pixel_ratio() const { return frame_device_pixel_ratio_; }
std::shared_ptr<Layer> root_layer_;
fml::TimePoint build_start_;
fml::TimePoint build_finish_;
fml::TimePoint target_time_;
SkISize frame_size_ = SkISize::MakeEmpty(); // Physical pixels.
float frame_physical_depth_;
float frame_device_pixel_ratio_ = 1.0f; // Logical / Physical pixels ratio.
uint32_t rasterizer_tracing_threshold_;
bool checkerboard_raster_cache_images_;
bool checkerboard_offscreen_layers_;
} // namespace flutter