flutter_flutter/flow/layers/container_layer.cc
Michael Klimushyn e609577d12
Revert "Turn on RasterCache based on view hierarchy (#13360)" (#13442)
This caused EmbedderTest.VerifyB143464703 to fail after merging into
master.

```
../../flutter/shell/platform/embedder/tests/embedder_unittests.cc:3111: Failure
Value of: ImageMatchesFixture("verifyb143464703.png", renderered_scene)
  Actual: false
Expected: true
[  FAILED  ] EmbedderTest.VerifyB143464703 (2507 ms)
```

This reverts commit 3ad3bc76a5825210603d4afd12013de8ba7d7668.
2019-10-30 11:25:29 -07:00

72 lines
2.0 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/flow/layers/container_layer.h"
namespace flutter {
ContainerLayer::ContainerLayer() {}
ContainerLayer::~ContainerLayer() = default;
void ContainerLayer::Add(std::shared_ptr<Layer> layer) {
layer->set_parent(this);
layers_.push_back(std::move(layer));
}
void ContainerLayer::Preroll(PrerollContext* context, const SkMatrix& matrix) {
TRACE_EVENT0("flutter", "ContainerLayer::Preroll");
SkRect child_paint_bounds = SkRect::MakeEmpty();
PrerollChildren(context, matrix, &child_paint_bounds);
set_paint_bounds(child_paint_bounds);
}
void ContainerLayer::PrerollChildren(PrerollContext* context,
const SkMatrix& child_matrix,
SkRect* child_paint_bounds) {
for (auto& layer : layers_) {
layer->Preroll(context, child_matrix);
if (layer->needs_system_composite()) {
set_needs_system_composite(true);
}
child_paint_bounds->join(layer->paint_bounds());
}
}
void ContainerLayer::PaintChildren(PaintContext& context) const {
FML_DCHECK(needs_painting());
// Intentionally not tracing here as there should be no self-time
// and the trace event on this common function has a small overhead.
for (auto& layer : layers_) {
if (layer->needs_painting()) {
layer->Paint(context);
}
}
}
#if defined(OS_FUCHSIA)
void ContainerLayer::UpdateScene(SceneUpdateContext& context) {
UpdateSceneChildren(context);
}
void ContainerLayer::UpdateSceneChildren(SceneUpdateContext& context) {
FML_DCHECK(needs_system_composite());
// Paint all of the layers which need to be drawn into the container.
// These may be flattened down to a containing
for (auto& layer : layers_) {
if (layer->needs_system_composite()) {
layer->UpdateScene(context);
}
}
}
#endif // defined(OS_FUCHSIA)
} // namespace flutter