| /* |
| * 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 <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 |