1/*
2 * Copyright (C) 2012 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 com.android.rs.image2;
18
19import java.lang.Math;
20
21import android.support.v8.renderscript.*;
22import android.util.Log;
23
24public class CrossProcess extends TestBase {
25    private ScriptIntrinsicLUT mIntrinsic;
26
27    public void createTest(android.content.res.Resources res) {
28        mIntrinsic = ScriptIntrinsicLUT.create(mRS, Element.U8_4(mRS));
29        for (int ct=0; ct < 256; ct++) {
30            float f = ((float)ct) / 255.f;
31
32            float r = f;
33            if (r < 0.5f) {
34                r = 4.0f * r * r * r;
35            } else {
36                r = 1.0f - r;
37                r = 1.0f - (4.0f * r * r * r);
38            }
39            mIntrinsic.setRed(ct, (int)(r * 255.f + 0.5f));
40
41            float g = f;
42            if (g < 0.5f) {
43                g = 2.0f * g * g;
44            } else {
45                g = 1.0f - g;
46                g = 1.0f - (2.0f * g * g);
47            }
48            mIntrinsic.setGreen(ct, (int)(g * 255.f + 0.5f));
49
50            float b = f * 0.5f + 0.25f;
51            mIntrinsic.setBlue(ct, (int)(b * 255.f + 0.5f));
52        }
53
54    }
55
56    public void runTest() {
57        mIntrinsic.forEach(mInPixelsAllocation, mOutPixelsAllocation);
58    }
59
60}
61