1/*
2 * Copyright (C) 2023 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 */
16
17export interface Point {
18  x: number;
19  y: number;
20}
21
22export interface TransformMatrix {
23  dsdx: number;
24  dtdx: number;
25  tx: number;
26  dsdy: number;
27  dtdy: number;
28  ty: number;
29}
30
31export const IDENTITY_MATRIX = {
32  dsdx: 1,
33  dtdx: 0,
34  tx: 0,
35  dsdy: 0,
36  dtdy: 1,
37  ty: 0,
38};
39