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      1 /*
      2  * Copyright (C) 2015 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 
     17 package com.example.android.rs.vr.engine;
     18 
     19 import android.renderscript.Allocation;
     20 import android.util.Log;
     21 
     22 import java.util.Arrays;
     23 import java.util.HashMap;
     24 
     25 /**
     26  * Defines a simple volume to be used in the volume renderer
     27  */
     28 public class Volume {
     29     private static final String LOGTAG = "Volume";
     30     public short[][] mData;
     31     public Allocation mVolumeAllocation; // one big volume
     32     public int mDimz = -1;
     33     public int mDimy = -1;
     34     public int mDimx = -1;
     35     public float[] mVoxelDim = new float[]{1f, 1f, 1f};
     36     private HashMap<String, Look> mLooks = new HashMap<String, Look>();
     37 
     38     @Override
     39     public String toString() {
     40         String ret = "Volume[" + mDimx + "," + mDimy + "," + mDimz + "]";
     41         ret += "(" + mVoxelDim[0] + ", " + mVoxelDim[1] + ", " + mVoxelDim[2] + ")";
     42 
     43         return ret;
     44     }
     45 
     46     public String[] getLookNames() {
     47         return mLooks.keySet().toArray(new String[mLooks.size()]);
     48     }
     49 
     50     public int[][] getLookColor(String name) {
     51         return mLooks.get(name).mColor;
     52     }
     53 
     54     public int[][] getLookOpactiy(String name) {
     55         return mLooks.get(name).mOpacity;
     56     }
     57 
     58     public void addLook(String name, int[][] color,  int[][] opacity) {
     59         mLooks.put(name, new Look(name, color, opacity));
     60     }
     61 
     62     public void addLook(String name, String color_string, String opacity_string) {
     63         mLooks.put(name, new Look(name, color_string, opacity_string));
     64         Look l = mLooks.get(name);
     65         Log.v(LOGTAG, " ========================== " + name + " =============================");
     66         Log.v(LOGTAG, "mColor "+l.dblArrayToString(l.mColor));
     67         Log.v(LOGTAG, "mOpacity "+l.dblArrayToString(l.mOpacity));
     68     }
     69 
     70     class Look {
     71         int[][] mColor;
     72         int[][] mOpacity;
     73         String mName;
     74 
     75         public Look(String name, String color_string, String opacity_string) {
     76             mName = name;
     77             String[] colorSplit = color_string.split("\\}\\s*\\,\\s*\\{");
     78             String[] opacitySplit = opacity_string.split("\\}\\s*\\,\\s*\\{");
     79             mColor = new int[colorSplit.length][];
     80             for (int i = 0; i < colorSplit.length; i++) {
     81 
     82                 mColor[i] = readNumbers(colorSplit[i]);
     83             }
     84             mOpacity = new int[opacitySplit.length][];
     85             for (int i = 0; i < opacitySplit.length; i++) {
     86 
     87                 mOpacity[i] = readNumbers(opacitySplit[i]);
     88             }
     89         }
     90 
     91         public Look(String name, int[][] color, int[][] opacity) {
     92             mColor = color;
     93             mOpacity = opacity;
     94             mName =name;
     95         }
     96 
     97         private int[] readNumbers(String numList) {
     98             numList = numList.replace('{', ' ');
     99             numList = numList.replace('}', ' ');
    100             numList = numList.replace(';', ' ');
    101             String[] split = numList.split(",");
    102             int[] ret = new int[split.length];
    103             for (int i = 0; i < ret.length; i++) {
    104                 ret[i] = Integer.decode(split[i].trim());
    105             }
    106             return ret;
    107         }
    108 
    109         private String dblArrayToString(int[][] v) {
    110             String s = "";
    111             for (int i = 0; i < v.length; i++) {
    112                 if (i > 0) {
    113                     s += ",";
    114                 }
    115                 s += Arrays.toString(v[i]);
    116             }
    117             return s;
    118         }
    119 
    120         public String toString() {
    121             return "mColor=" + dblArrayToString(mColor) + "\nmOpacity=" + dblArrayToString(mOpacity);
    122         }
    123     }
    124 }
    125