Mandelbrot.java revision f1d97e536561b4731997c85873dde3b3fb721cb2 
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.image;
18
19import java.lang.Math;
20
21import android.renderscript.Allocation;
22import android.renderscript.Element;
23import android.renderscript.RenderScript;
24import android.renderscript.Script;
25import android.renderscript.ScriptC;
26import android.renderscript.Type;
27import android.util.Log;
28import android.widget.SeekBar;
29import android.widget.TextView;
30
31public class Mandelbrot extends TestBase {
32    private ScriptC_mandelbrot mScript;
33    private boolean mUseDouble = false;
34
35    public Mandelbrot(boolean useDouble) {
36        mUseDouble = useDouble;
37    }
38
39    public boolean onBar1Setup(SeekBar b, TextView t) {
40        t.setText("Iterations");
41        b.setProgress(0);
42        return true;
43    }
44
45    public void onBar1Changed(int progress) {
46        int iters = progress * 3 + 50;
47        mScript.set_gMaxIteration(iters);
48    }
49
50    public boolean onBar2Setup(SeekBar b, TextView t) {
51        t.setText("Lower Bound: X");
52        b.setProgress(0);
53        return true;
54    }
55
56    public void onBar2Changed(int progress) {
57        float scaleFactor = mScript.get_scaleFactor();
58        // allow viewport to be moved by 2x scale factor
59        float lowerBoundX = -2.f + ((progress / scaleFactor) / 50.f);
60        mScript.set_lowerBoundX(lowerBoundX);
61    }
62
63    public boolean onBar3Setup(SeekBar b, TextView t) {
64        t.setText("Lower Bound: Y");
65        b.setProgress(0);
66        return true;
67    }
68
69    public void onBar3Changed(int progress) {
70        float scaleFactor = mScript.get_scaleFactor();
71        // allow viewport to be moved by 2x scale factor
72        float lowerBoundY = -2.f + ((progress / scaleFactor) / 50.f);
73        mScript.set_lowerBoundY(lowerBoundY);
74    }
75
76    public boolean onBar4Setup(SeekBar b, TextView t) {
77        t.setText("Scale Factor");
78        b.setProgress(0);
79        return true;
80    }
81
82    public void onBar4Changed(int progress) {
83        float scaleFactor = 4.f - (3.96f * (progress / 100.f));
84        mScript.set_scaleFactor(scaleFactor);
85    }
86
87    public void createTest(android.content.res.Resources res) {
88        int width = mOutPixelsAllocation.getType().getX();
89        int height = mOutPixelsAllocation.getType().getY();
90
91        mScript = new ScriptC_mandelbrot(mRS);
92        mScript.set_gDimX(width);
93        mScript.set_gDimY(height);
94        mScript.set_gMaxIteration(50);
95    }
96
97    public void runTest() {
98        if (mUseDouble) {
99            mScript.forEach_rootD(mOutPixelsAllocation);
100        } else {
101            mScript.forEach_root(mOutPixelsAllocation);
102        }
103        mRS.finish();
104    }
105
106}
107
108