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80 lines
2.1 KiB
80 lines
2.1 KiB
4 months ago
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/*
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* Copyright (C) 2018 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 _LIBINPUT_TOUCHVIDEOFRAME_H
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#define _LIBINPUT_TOUCHVIDEOFRAME_H
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#include <stdint.h>
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#include <sys/time.h>
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#include <vector>
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namespace android {
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/**
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* Represents data from a single scan of the touchscreen device.
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* Similar in concept to a video frame, but the touch strength is used as
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* the values instead.
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*/
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class TouchVideoFrame {
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public:
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TouchVideoFrame(uint32_t height, uint32_t width, std::vector<int16_t> data,
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const struct timeval& timestamp);
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bool operator==(const TouchVideoFrame& rhs) const;
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/**
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* Height of the frame
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*/
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uint32_t getHeight() const;
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/**
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* Width of the frame
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*/
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uint32_t getWidth() const;
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/**
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* The touch strength data.
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* The array is a 2-D row-major matrix, with dimensions (height, width).
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* Total size of the array should equal getHeight() * getWidth().
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* Data is allowed to be negative.
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*/
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const std::vector<int16_t>& getData() const;
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/**
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* Time at which the heatmap was taken.
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*/
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const struct timeval& getTimestamp() const;
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/**
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* Rotate the video frame.
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* The rotation value is an enum from ui/Rotation.h
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*/
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void rotate(int32_t orientation);
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private:
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uint32_t mHeight;
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uint32_t mWidth;
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std::vector<int16_t> mData;
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struct timeval mTimestamp;
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/**
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* Common method for 90 degree and 270 degree rotation
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*/
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void rotateQuarterTurn(bool clockwise);
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void rotate180();
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};
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} // namespace android
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#endif // _LIBINPUT_TOUCHVIDEOFRAME_H
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