1 /* 2 * Copyright (C) 2008 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 android.renderscript; 18 19 import android.content.res.Resources; 20 21 import java.io.File; 22 import java.io.IOException; 23 import java.io.InputStream; 24 25 /** 26 * The superclass for all user-defined scripts. This is only 27 * intended to be used by the generated derived classes. 28 **/ 29 public class ScriptC extends Script { 30 private static final String TAG = "ScriptC"; 31 32 /** 33 * Only intended for use by the generated derived classes. 34 * 35 * @param id 36 * @param rs 37 */ ScriptC(int id, RenderScript rs)38 protected ScriptC(int id, RenderScript rs) { 39 super(id, rs); 40 } 41 /** 42 * Only intended for use by the generated derived classes. 43 * 44 * @param id 45 * @param rs 46 * 47 */ ScriptC(long id, RenderScript rs)48 protected ScriptC(long id, RenderScript rs) { 49 super(id, rs); 50 } 51 /** 52 * Only intended for use by the generated derived classes. 53 * 54 * 55 * @param rs 56 * @param resources 57 * @param resourceID 58 */ ScriptC(RenderScript rs, Resources resources, int resourceID)59 protected ScriptC(RenderScript rs, Resources resources, int resourceID) { 60 super(0, rs); 61 long id = internalCreate(rs, resources, resourceID); 62 if (id == 0) { 63 throw new RSRuntimeException("Loading of ScriptC script failed."); 64 } 65 setID(id); 66 } 67 68 /** 69 * Only intended for use by the generated derived classes. 70 * 71 * @param rs 72 */ ScriptC(RenderScript rs, String resName, byte[] bitcode32, byte[] bitcode64)73 protected ScriptC(RenderScript rs, String resName, byte[] bitcode32, byte[] bitcode64) { 74 super(0, rs); 75 long id = 0; 76 if (RenderScript.sPointerSize == 4) { 77 id = internalStringCreate(rs, resName, bitcode32); 78 } else { 79 id = internalStringCreate(rs, resName, bitcode64); 80 } 81 if (id == 0) { 82 throw new RSRuntimeException("Loading of ScriptC script failed."); 83 } 84 setID(id); 85 } 86 87 /** 88 * Name of the file that holds the object cache. 89 */ 90 private static final String CACHE_PATH = "com.android.renderscript.cache"; 91 92 static String mCachePath; 93 internalCreate(RenderScript rs, Resources resources, int resourceID)94 private static synchronized long internalCreate(RenderScript rs, Resources resources, int resourceID) { 95 byte[] pgm; 96 int pgmLength; 97 InputStream is = resources.openRawResource(resourceID); 98 try { 99 try { 100 pgm = new byte[1024]; 101 pgmLength = 0; 102 while(true) { 103 int bytesLeft = pgm.length - pgmLength; 104 if (bytesLeft == 0) { 105 byte[] buf2 = new byte[pgm.length * 2]; 106 System.arraycopy(pgm, 0, buf2, 0, pgm.length); 107 pgm = buf2; 108 bytesLeft = pgm.length - pgmLength; 109 } 110 int bytesRead = is.read(pgm, pgmLength, bytesLeft); 111 if (bytesRead <= 0) { 112 break; 113 } 114 pgmLength += bytesRead; 115 } 116 } finally { 117 is.close(); 118 } 119 } catch(IOException e) { 120 throw new Resources.NotFoundException(); 121 } 122 123 String resName = resources.getResourceEntryName(resourceID); 124 125 // Create the RS cache path if we haven't done so already. 126 if (mCachePath == null) { 127 File f = new File(rs.mCacheDir, CACHE_PATH); 128 mCachePath = f.getAbsolutePath(); 129 f.mkdirs(); 130 } 131 // Log.v(TAG, "Create script for resource = " + resName); 132 return rs.nScriptCCreate(resName, mCachePath, pgm, pgmLength); 133 } 134 internalStringCreate(RenderScript rs, String resName, byte[] bitcode)135 private static synchronized long internalStringCreate(RenderScript rs, String resName, byte[] bitcode) { 136 // Create the RS cache path if we haven't done so already. 137 if (mCachePath == null) { 138 File f = new File(rs.mCacheDir, CACHE_PATH); 139 mCachePath = f.getAbsolutePath(); 140 f.mkdirs(); 141 } 142 // Log.v(TAG, "Create script for resource = " + resName); 143 return rs.nScriptCCreate(resName, mCachePath, bitcode, bitcode.length); 144 } 145 146 147 } 148