13c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta/* 23c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * Copyright (C) 2014 The Android Open Source Project 33c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * 43c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * Licensed under the Apache License, Version 2.0 (the "License"); 53c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * you may not use this file except in compliance with the License. 63c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * You may obtain a copy of the License at 73c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * 83c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * http://www.apache.org/licenses/LICENSE-2.0 93c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * 103c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * Unless required by applicable law or agreed to in writing, software 113c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * distributed under the License is distributed on an "AS IS" BASIS, 123c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * See the License for the specific language governing permissions and 143c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * limitations under the License. 153c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta */ 163c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta 173c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Guptapackage dalvik.system; 183c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta 193c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Guptaimport com.android.tools.layoutlib.annotations.LayoutlibDelegate; 203c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta 213c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta/** 223c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * Delegate used to provide implementation of a select few native methods of {@link VMRuntime} 233c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * <p/> 243c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * Through the layoutlib_create tool, the original native methods of VMRuntime have been replaced 253c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta * by calls to methods of the same name in this delegate class. 263c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta */ 273c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Guptapublic class VMRuntime_Delegate { 283c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta 293c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta // Copied from libcore/libdvm/src/main/java/dalvik/system/VMRuntime 303c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta @LayoutlibDelegate 313c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta /*package*/ static Object newUnpaddedArray(VMRuntime runtime, Class<?> componentType, 323c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int minLength) { 333c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta // Dalvik has 32bit pointers, the array header is 16bytes plus 4bytes for dlmalloc, 343c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta // allocations are 8byte aligned so having 4bytes of array data avoids padding. 353c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta if (!componentType.isPrimitive()) { 363c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int size = ((minLength & 1) == 0) ? minLength + 1 : minLength; 373c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return java.lang.reflect.Array.newInstance(componentType, size); 383c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else if (componentType == char.class) { 393c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int bytes = 20 + (2 * minLength); 403c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int alignedUpBytes = (bytes + 7) & -8; 413c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int dataBytes = alignedUpBytes - 20; 423c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int size = dataBytes / 2; 433c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return new char[size]; 443c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else if (componentType == int.class) { 453c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int size = ((minLength & 1) == 0) ? minLength + 1 : minLength; 463c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return new int[size]; 473c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else if (componentType == byte.class) { 483c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int bytes = 20 + minLength; 493c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int alignedUpBytes = (bytes + 7) & -8; 503c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int dataBytes = alignedUpBytes - 20; 513c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int size = dataBytes; 523c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return new byte[size]; 533c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else if (componentType == boolean.class) { 543c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int bytes = 20 + minLength; 553c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int alignedUpBytes = (bytes + 7) & -8; 563c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int dataBytes = alignedUpBytes - 20; 573c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int size = dataBytes; 583c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return new boolean[size]; 593c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else if (componentType == short.class) { 603c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int bytes = 20 + (2 * minLength); 613c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int alignedUpBytes = (bytes + 7) & -8; 623c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int dataBytes = alignedUpBytes - 20; 633c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int size = dataBytes / 2; 643c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return new short[size]; 653c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else if (componentType == float.class) { 663c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta int size = ((minLength & 1) == 0) ? minLength + 1 : minLength; 673c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return new float[size]; 683c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else if (componentType == long.class) { 693c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return new long[minLength]; 703c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else if (componentType == double.class) { 713c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta return new double[minLength]; 723c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } else { 733c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta assert componentType == void.class; 743c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta throw new IllegalArgumentException("Can't allocate an array of void"); 753c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } 763c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta } 773c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta 783c989eaa0af6e3c4427af4119cf4949b1f05dba2Deepanshu Gupta} 79