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109 lines
3.8 KiB
109 lines
3.8 KiB
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _UI_INPUT_INPUTDISPATCHER_INPUTEVENTTIMELINE_H
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#define _UI_INPUT_INPUTDISPATCHER_INPUTEVENTTIMELINE_H
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#include <binder/IBinder.h>
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#include <input/Input.h>
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#include <unordered_map>
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namespace android {
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namespace inputdispatcher {
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/**
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* Describes the input event timeline for each connection.
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* An event with the same inputEventId can go to more than 1 connection simultaneously.
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* For each connection that the input event goes to, there will be a separate ConnectionTimeline
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* created.
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* To create a complete ConnectionTimeline, we must receive two calls:
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* 1) setDispatchTimeline
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* 2) setGraphicsTimeline
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*
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* In a typical scenario, the dispatch timeline is known first. Later, if a frame is produced, the
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* graphics timeline is available.
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*/
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struct ConnectionTimeline {
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// DispatchTimeline
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nsecs_t deliveryTime; // time at which the event was sent to the receiver
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nsecs_t consumeTime; // time at which the receiver read the event
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nsecs_t finishTime; // time at which the finish event was received
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// GraphicsTimeline
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std::array<nsecs_t, GraphicsTimeline::SIZE> graphicsTimeline;
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ConnectionTimeline(nsecs_t deliveryTime, nsecs_t consumeTime, nsecs_t finishTime);
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ConnectionTimeline(std::array<nsecs_t, GraphicsTimeline::SIZE> graphicsTimeline);
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/**
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* True if all contained timestamps are valid, false otherwise.
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*/
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bool isComplete() const;
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/**
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* Set the dispatching-related times. Return true if the operation succeeded, false if the
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* dispatching times have already been set. If this function returns false, it likely indicates
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* an error from the app side.
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*/
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bool setDispatchTimeline(nsecs_t deliveryTime, nsecs_t consumeTime, nsecs_t finishTime);
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/**
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* Set the graphics-related times. Return true if the operation succeeded, false if the
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* graphics times have already been set. If this function returns false, it likely indicates
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* an error from the app side.
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*/
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bool setGraphicsTimeline(std::array<nsecs_t, GraphicsTimeline::SIZE> graphicsTimeline);
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inline bool operator==(const ConnectionTimeline& rhs) const;
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inline bool operator!=(const ConnectionTimeline& rhs) const;
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private:
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bool mHasDispatchTimeline = false;
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bool mHasGraphicsTimeline = false;
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};
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struct InputEventTimeline {
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InputEventTimeline(bool isDown, nsecs_t eventTime, nsecs_t readTime);
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const bool isDown; // True if this is an ACTION_DOWN event
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const nsecs_t eventTime;
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const nsecs_t readTime;
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struct IBinderHash {
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std::size_t operator()(const sp<IBinder>& b) const {
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return std::hash<IBinder*>{}(b.get());
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}
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};
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std::unordered_map<sp<IBinder>, ConnectionTimeline, IBinderHash> connectionTimelines;
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bool operator==(const InputEventTimeline& rhs) const;
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};
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class InputEventTimelineProcessor {
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protected:
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InputEventTimelineProcessor() {}
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virtual ~InputEventTimelineProcessor() {}
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public:
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/**
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* Process the provided timeline
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*/
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virtual void processTimeline(const InputEventTimeline& timeline) = 0;
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};
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} // namespace inputdispatcher
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} // namespace android
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#endif // _UI_INPUT_INPUTDISPATCHER_INPUTEVENTTIMELINE_H
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