mirror of
https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
Chinmay Garde
5b5d920746
* Scenic is used on the GPU thread and is owned by the session connection held by the rasterizer. * The view container is used to initialize the mozart bindings on the UI thread. * Accessibility bridge is used on the platform thread.
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#pragma once
|
|
|
|
#include <zx/eventpair.h>
|
|
|
|
#include "flutter/flow/compositor_context.h"
|
|
#include "flutter/flow/scene_update_context.h"
|
|
#include "lib/fidl/cpp/interface_handle.h"
|
|
#include "lib/fxl/functional/closure.h"
|
|
#include "lib/fxl/macros.h"
|
|
#include "lib/ui/scenic/client/resources.h"
|
|
#include "lib/ui/scenic/client/session.h"
|
|
#include "vulkan_surface_producer.h"
|
|
|
|
namespace flutter {
|
|
|
|
using OnMetricsUpdate = std::function<void(double /* device pixel ratio */)>;
|
|
|
|
// The component residing on the GPU thread that is responsible for
|
|
// maintaining the Scenic session connection and presenting node updates.
|
|
class SessionConnection final {
|
|
public:
|
|
SessionConnection(fidl::InterfaceHandle<ui::Scenic> scenic,
|
|
std::string debug_label,
|
|
zx::eventpair import_token,
|
|
OnMetricsUpdate session_metrics_did_change_callback,
|
|
fxl::Closure session_error_callback);
|
|
|
|
~SessionConnection();
|
|
|
|
bool has_metrics() const { return scene_update_context_.has_metrics(); }
|
|
|
|
const gfx::MetricsPtr& metrics() const {
|
|
return scene_update_context_.metrics();
|
|
}
|
|
|
|
flow::SceneUpdateContext& scene_update_context() {
|
|
return scene_update_context_;
|
|
}
|
|
|
|
scenic_lib::ImportNode& root_node() { return root_node_; }
|
|
|
|
void Present(flow::CompositorContext::ScopedFrame& frame);
|
|
|
|
private:
|
|
const std::string debug_label_;
|
|
ui::ScenicPtr scenic_;
|
|
scenic_lib::Session session_;
|
|
scenic_lib::ImportNode root_node_;
|
|
std::unique_ptr<VulkanSurfaceProducer> surface_producer_;
|
|
flow::SceneUpdateContext scene_update_context_;
|
|
OnMetricsUpdate metrics_changed_callback_;
|
|
|
|
void OnSessionEvents(fidl::VectorPtr<ui::Event> events);
|
|
|
|
void EnqueueClearOps();
|
|
|
|
FXL_DISALLOW_COPY_AND_ASSIGN(SessionConnection);
|
|
};
|
|
|
|
} // namespace flutter
|