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 Convolve5x5 extends TestBase {
25    private ScriptC_convolve5x5 mScript;
26    private ScriptIntrinsicConvolve5x5 mIntrinsic;
27
28    private int mWidth;
29    private int mHeight;
30    private boolean mUseIntrinsic;
31
32    public Convolve5x5(boolean useIntrinsic) {
33        mUseIntrinsic = useIntrinsic;
34    }
35
36    private float blend(float v1, float v2, float p) {
37        return (v2 * p) + (v1 * (1.f-p));
38    }
39
40    private float[] updateMatrix(float str) {
41        float f[] = new float[25];
42        final float f125 = 1.f / 25.f;
43        float cf1 = blend(f125, -1.f, str);
44        float cf2 = blend(f125, -3.f, str);
45        float cf3 = blend(f125, -4.f, str);
46        float cf4 = blend(f125, 6.f, str);
47        float cf5 = blend(f125, 20.f, str);
48        float cf6 = blend(f125, 0.f, str);
49        f[0] = cf1;  f[1] = cf2; f[2] = cf3; f[3] = cf2; f[4] = cf1;
50        f[5] = cf2;  f[6] = cf6; f[7] = cf4; f[8] = cf6; f[9] = cf2;
51        f[10]= cf3;  f[11]= cf4; f[12]= cf5; f[13]= cf4; f[14]= cf3;
52        f[15]= cf2;  f[16]= cf6; f[17]= cf4; f[18]= cf6; f[19]= cf2;
53        f[20]= cf1;  f[21]= cf2; f[22]= cf3; f[23]= cf2; f[24]= cf1;
54        return f;
55    }
56
57
58    public void createTest(android.content.res.Resources res) {
59        mWidth = mInPixelsAllocation.getType().getX();
60        mHeight = mInPixelsAllocation.getType().getY();
61
62        float f[] = updateMatrix(1.f);
63        //f[0] = 0.012f; f[1] = 0.025f; f[2] = 0.031f; f[3] = 0.025f; f[4] = 0.012f;
64        //f[5] = 0.025f; f[6] = 0.057f; f[7] = 0.075f; f[8] = 0.057f; f[9] = 0.025f;
65        //f[10]= 0.031f; f[11]= 0.075f; f[12]= 0.095f; f[13]= 0.075f; f[14]= 0.031f;
66        //f[15]= 0.025f; f[16]= 0.057f; f[17]= 0.075f; f[18]= 0.057f; f[19]= 0.025f;
67        //f[20]= 0.012f; f[21]= 0.025f; f[22]= 0.031f; f[23]= 0.025f; f[24]= 0.012f;
68
69        //f[0] = 1.f; f[1] = 2.f; f[2] = 0.f; f[3] = -2.f; f[4] = -1.f;
70        //f[5] = 4.f; f[6] = 8.f; f[7] = 0.f; f[8] = -8.f; f[9] = -4.f;
71        //f[10]= 6.f; f[11]=12.f; f[12]= 0.f; f[13]=-12.f; f[14]= -6.f;
72        //f[15]= 4.f; f[16]= 8.f; f[17]= 0.f; f[18]= -8.f; f[19]= -4.f;
73        //f[20]= 1.f; f[21]= 2.f; f[22]= 0.f; f[23]= -2.f; f[24]= -1.f;
74
75        if (mUseIntrinsic) {
76            mIntrinsic = ScriptIntrinsicConvolve5x5.create(mRS, Element.U8_4(mRS));
77            mIntrinsic.setCoefficients(f);
78            mIntrinsic.setInput(mInPixelsAllocation);
79        } else {
80            mScript = new ScriptC_convolve5x5(mRS);
81            mScript.set_gCoeffs(f);
82            mScript.set_gIn(mInPixelsAllocation);
83            mScript.set_gWidth(mWidth);
84            mScript.set_gHeight(mHeight);
85        }
86    }
87
88    public void animateBars(float time) {
89        float f[] = updateMatrix(time % 1.f);
90        if (mUseIntrinsic) {
91            mIntrinsic.setCoefficients(f);
92        } else {
93            mScript.set_gCoeffs(f);
94        }
95    }
96
97    public void runTest() {
98        if (mUseIntrinsic) {
99            mIntrinsic.forEach(mOutPixelsAllocation);
100        } else {
101            mScript.forEach_root(mOutPixelsAllocation);
102        }
103    }
104
105}
106