1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package com.android.devcamera;
17
18import android.graphics.PointF;
19import android.graphics.RectF;
20import android.hardware.camera2.params.Face;
21
22/**
23 *
24 * Face coordinates.  Normalized 0 to 1, and in native sensor orientation, which so far seems to be
25 * landscape.
26 *
27 */
28public class NormalizedFace {
29    public RectF bounds;
30    public PointF leftEye;
31    public PointF rightEye;
32    public PointF mouth;
33
34    public NormalizedFace(Face face, int dX, int dY, int offX, int offY) {
35        if (face.getLeftEyePosition() != null) {
36            leftEye = new PointF();
37            leftEye.x = (float) (face.getLeftEyePosition().x - offX) / dX;
38            leftEye.y = (float) (face.getLeftEyePosition().y - offY) / dY;
39        }
40        if (face.getRightEyePosition() != null) {
41            rightEye = new PointF();
42            rightEye.x = (float) (face.getRightEyePosition().x - offX) / dX;
43            rightEye.y = (float) (face.getRightEyePosition().y - offY) / dY;
44        }
45        if (face.getMouthPosition() != null) {
46            mouth = new PointF();
47            mouth.x = (float) (face.getMouthPosition().x - offX) / dX;
48            mouth.y = (float) (face.getMouthPosition().y - offY) / dY;
49        }
50        if (face.getBounds() != null) {
51            bounds = new RectF();
52            bounds.left = (float) (face.getBounds().left - offX) / dX;
53            bounds.top = (float) (face.getBounds().top - offY) / dY;
54            bounds.right = (float) (face.getBounds().right - offX) / dX;
55            bounds.bottom = (float) (face.getBounds().bottom - offY) / dY;
56        }
57    }
58
59    public void mirrorInX() {
60        if (leftEye != null) {
61            leftEye.x = 1f - leftEye.x;
62        }
63        if (rightEye != null) {
64            rightEye.x = 1f - rightEye.x;
65        }
66        if (mouth != null) {
67            mouth.x = 1f - mouth.x;
68        }
69        float oldLeft = bounds.left;
70        bounds.left = 1f - bounds.right;
71        bounds.right = 1f - oldLeft;
72    }
73
74    /**
75     * Typically required for front camera
76     */
77    public void mirrorInY() {
78        if (leftEye != null) {
79            leftEye.y = 1f - leftEye.y;
80        }
81        if (rightEye != null) {
82            rightEye.y = 1f - rightEye.y;
83        }
84        if (mouth != null) {
85            mouth.y = 1f - mouth.y;
86        }
87        float oldTop = bounds.top;
88        bounds.top = 1f - bounds.bottom;
89        bounds.bottom = 1f - oldTop;
90    }
91}
92