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      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 
     17 package androidx.renderscript;
     18 
     19 import android.content.Context;
     20 import android.content.res.Resources;
     21 import android.util.Log;
     22 
     23 import java.io.File;
     24 import java.io.IOException;
     25 import java.io.InputStream;
     26 import java.util.Map.Entry;
     27 import java.util.HashMap;
     28 
     29 import java.lang.reflect.Field;
     30 import java.lang.reflect.Modifier;
     31 
     32 /**
     33  * The superclass for all user-defined scripts. This is only
     34  * intended to be used by the generated derived classes.
     35  **/
     36 public class ScriptC extends Script {
     37     private static final String TAG = "ScriptC";
     38 
     39     /**
     40      * Only intended for use by the generated derived classes.
     41      *
     42      * @param id
     43      * @param rs
     44      */
     45     protected ScriptC(long id, RenderScript rs) {
     46         super(id, rs);
     47     }
     48 
     49     /**
     50      * Only intended for use by the generated derived classes.
     51      *
     52      *
     53      * @param rs
     54      * @param resources
     55      * @param resourceID
     56      */
     57     protected ScriptC(RenderScript rs, Resources resources, int resourceID) {
     58         super(0, rs);
     59         long id = internalCreate(rs, resources, resourceID);
     60         if (id == 0) {
     61             throw new RSRuntimeException("Loading of ScriptC script failed.");
     62         }
     63         setID(id);
     64     }
     65 
     66     /**
     67      * Only intended for use by the generated derived classes.
     68      *
     69      * @param rs
     70      * @param resName
     71      * @param bitcode32
     72      * @param bitcode64
     73      */
     74     protected ScriptC(RenderScript rs, String resName, byte[] bitcode32, byte[] bitcode64) {
     75         super(0, rs);
     76         long id = 0;
     77         if (RenderScript.sPointerSize == 4) {
     78             id = internalStringCreate(rs, resName, bitcode32);
     79         } else {
     80             id = internalStringCreate(rs, resName, bitcode64);
     81         }
     82         if (id == 0) {
     83             throw new RSRuntimeException("Loading of ScriptC script failed.");
     84         }
     85         setID(id);
     86     }
     87 
     88     private static synchronized long internalCreate(RenderScript rs, Resources resources, int resourceID) {
     89         byte[] pgm;
     90         int pgmLength;
     91         InputStream is = resources.openRawResource(resourceID);
     92         try {
     93             try {
     94                 pgm = new byte[1024];
     95                 pgmLength = 0;
     96                 while(true) {
     97                     int bytesLeft = pgm.length - pgmLength;
     98                     if (bytesLeft == 0) {
     99                         byte[] buf2 = new byte[pgm.length * 2];
    100                         System.arraycopy(pgm, 0, buf2, 0, pgm.length);
    101                         pgm = buf2;
    102                         bytesLeft = pgm.length - pgmLength;
    103                     }
    104                     int bytesRead = is.read(pgm, pgmLength, bytesLeft);
    105                     if (bytesRead <= 0) {
    106                         break;
    107                     }
    108                     pgmLength += bytesRead;
    109                 }
    110             } finally {
    111                 is.close();
    112             }
    113         } catch(IOException e) {
    114             throw new Resources.NotFoundException();
    115         }
    116 
    117         String resName = resources.getResourceEntryName(resourceID);
    118         String cachePath = rs.getApplicationContext().getCacheDir().toString();
    119 
    120         //        Log.v(TAG, "Create script for resource = " + resName + ", " + pgmLength + ", " + pgm);
    121         //Log.v(TAG, " path = " + cachePath);
    122         return rs.nScriptCCreate(resName, cachePath, pgm, pgmLength);
    123     }
    124 
    125     private static synchronized long internalStringCreate(RenderScript rs, String resName, byte[] bitcode) {
    126         //        Log.v(TAG, "Create script for resource = " + resName);
    127         String cachePath = rs.getApplicationContext().getCacheDir().toString();
    128         return rs.nScriptCCreate(resName, cachePath, bitcode, bitcode.length);
    129     }
    130 
    131 }
    132