Yilong Li 995965d36b
fuchsia: Remove display device availability check from Flutter. (#21495)
When Flutter engine connects to Scenic, Scenic has already
checked the display and graphics device availability before
Scenic starts; so it is guaranteed that display devices are
available and surface is valid when it is created.

Thus this change removes the device watching details from
flutter surface on Fuchsia so that it doesn't need to do
duplicated checks and hides the device-specific details.
2020-10-01 10:08:25 -07:00

60 lines
1.5 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 "surface.h"
#include <fcntl.h>
#include <lib/fdio/watcher.h>
#include <lib/zx/time.h>
#include <unistd.h>
#include "flutter/fml/unique_fd.h"
namespace flutter_runner {
Surface::Surface(std::string debug_label,
flutter::ExternalViewEmbedder* view_embedder,
GrDirectContext* gr_context)
: debug_label_(std::move(debug_label)),
view_embedder_(view_embedder),
gr_context_(gr_context) {}
Surface::~Surface() = default;
// |flutter::Surface|
bool Surface::IsValid() {
return true;
}
// |flutter::Surface|
std::unique_ptr<flutter::SurfaceFrame> Surface::AcquireFrame(
const SkISize& size) {
return std::make_unique<flutter::SurfaceFrame>(
nullptr, true,
[](const flutter::SurfaceFrame& surface_frame, SkCanvas* canvas) {
return true;
});
}
// |flutter::Surface|
GrDirectContext* Surface::GetContext() {
return gr_context_;
}
// |flutter::Surface|
SkMatrix Surface::GetRootTransformation() const {
// This backend does not support delegating to the underlying platform to
// query for root surface transformations. Just return identity.
SkMatrix matrix;
matrix.reset();
return matrix;
}
// |flutter::GetViewEmbedder|
flutter::ExternalViewEmbedder* Surface::GetExternalViewEmbedder() {
return view_embedder_;
}
} // namespace flutter_runner