Matrix2f.java revision 25430d0734d12d12ca2d2d7a9d18c0cf3c5bdc4e 
1/*
2 * Copyright (C) 2009 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
17package android.renderscript;
18
19import java.lang.Math;
20import android.util.Log;
21
22
23/**
24 * @hide
25 *
26 **/
27public class Matrix2f {
28
29    public Matrix2f() {
30        mMat = new float[4];
31        loadIdentity();
32    }
33
34    public float get(int i, int j) {
35        return mMat[i*2 + j];
36    }
37
38    public void set(int i, int j, float v) {
39        mMat[i*2 + j] = v;
40    }
41
42    public void loadIdentity() {
43        mMat[0] = 1;
44        mMat[1] = 0;
45
46        mMat[2] = 0;
47        mMat[3] = 1;
48    }
49
50    public void load(Matrix2f src) {
51        System.arraycopy(mMat, 0, src, 0, 4);
52    }
53
54    final float[] mMat;
55}
56
57
58
59