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71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#pragma once
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#include <zx/eventpair.h>
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#include "flutter/flow/compositor_context.h"
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#include "flutter/flow/scene_update_context.h"
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#include "lib/fidl/cpp/interface_handle.h"
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#include "lib/fxl/functional/closure.h"
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#include "lib/fxl/macros.h"
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#include "lib/ui/scenic/client/resources.h"
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#include "lib/ui/scenic/client/session.h"
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#include "vulkan_surface_producer.h"
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namespace flutter {
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using OnMetricsUpdate = std::function<void(double /* device pixel ratio */)>;
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// The component residing on the GPU thread that is responsible for
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// maintaining the Scenic session connection and presenting node updates.
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class SessionConnection final {
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public:
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SessionConnection(fidl::InterfaceHandle<ui::Scenic> scenic,
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std::string debug_label,
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zx::eventpair import_token,
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OnMetricsUpdate session_metrics_did_change_callback,
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fxl::Closure session_error_callback,
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zx_handle_t vsync_event_handle);
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~SessionConnection();
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bool has_metrics() const { return scene_update_context_.has_metrics(); }
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const gfx::MetricsPtr& metrics() const {
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return scene_update_context_.metrics();
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}
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flow::SceneUpdateContext& scene_update_context() {
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return scene_update_context_;
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}
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scenic_lib::ImportNode& root_node() { return root_node_; }
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void Present(flow::CompositorContext::ScopedFrame& frame);
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private:
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const std::string debug_label_;
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ui::ScenicPtr scenic_;
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scenic_lib::Session session_;
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scenic_lib::ImportNode root_node_;
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std::unique_ptr<VulkanSurfaceProducer> surface_producer_;
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flow::SceneUpdateContext scene_update_context_;
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OnMetricsUpdate metrics_changed_callback_;
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zx_handle_t vsync_event_handle_;
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void OnSessionEvents(fidl::VectorPtr<ui::Event> events);
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void EnqueueClearOps();
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void PresentSession();
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static void ToggleSignal(zx_handle_t handle, bool raise);
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FXL_DISALLOW_COPY_AND_ASSIGN(SessionConnection);
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};
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} // namespace flutter
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