/* * Copyright (C) 2018 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef _LIBINPUT_TOUCHVIDEOFRAME_H #define _LIBINPUT_TOUCHVIDEOFRAME_H #include <stdint.h> #include <sys/time.h> #include <ui/DisplayInfo.h> #include <vector> namespace android { /** * Represents data from a single scan of the touchscreen device. * Similar in concept to a video frame, but the touch strength is used as * the values instead. */ class TouchVideoFrame { public: TouchVideoFrame(uint32_t height, uint32_t width, std::vector<int16_t> data, const struct timeval& timestamp); bool operator==(const TouchVideoFrame& rhs) const; /** * Height of the frame */ uint32_t getHeight() const; /** * Width of the frame */ uint32_t getWidth() const; /** * The touch strength data. * The array is a 2-D row-major matrix, with dimensions (height, width). * Total size of the array should equal getHeight() * getWidth(). * Data is allowed to be negative. */ const std::vector<int16_t>& getData() const; /** * Time at which the heatmap was taken. */ const struct timeval& getTimestamp() const; /** * Rotate the video frame. * The rotation value is an enum from ui/DisplayInfo.h */ void rotate(int32_t orientation); private: uint32_t mHeight; uint32_t mWidth; std::vector<int16_t> mData; struct timeval mTimestamp; /** * Common method for 90 degree and 270 degree rotation */ void rotateQuarterTurn(bool clockwise); void rotate180(); }; } // namespace android #endif // _LIBINPUT_TOUCHVIDEOFRAME_H