diff options
| -rw-r--r-- | tools/layoutlib/bridge/src/dalvik/system/VMRuntime_Delegate.java | 78 | ||||
| -rw-r--r-- | tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java | 1 |
2 files changed, 79 insertions, 0 deletions
diff --git a/tools/layoutlib/bridge/src/dalvik/system/VMRuntime_Delegate.java b/tools/layoutlib/bridge/src/dalvik/system/VMRuntime_Delegate.java new file mode 100644 index 0000000..36efc3a --- /dev/null +++ b/tools/layoutlib/bridge/src/dalvik/system/VMRuntime_Delegate.java @@ -0,0 +1,78 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package dalvik.system; + +import com.android.tools.layoutlib.annotations.LayoutlibDelegate; + +/** + * Delegate used to provide implementation of a select few native methods of {@link VMRuntime} + * <p/> + * Through the layoutlib_create tool, the original native methods of VMRuntime have been replaced + * by calls to methods of the same name in this delegate class. + */ +public class VMRuntime_Delegate { + + // Copied from libcore/libdvm/src/main/java/dalvik/system/VMRuntime + @LayoutlibDelegate + /*package*/ static Object newUnpaddedArray(VMRuntime runtime, Class<?> componentType, + int minLength) { + // Dalvik has 32bit pointers, the array header is 16bytes plus 4bytes for dlmalloc, + // allocations are 8byte aligned so having 4bytes of array data avoids padding. + if (!componentType.isPrimitive()) { + int size = ((minLength & 1) == 0) ? minLength + 1 : minLength; + return java.lang.reflect.Array.newInstance(componentType, size); + } else if (componentType == char.class) { + int bytes = 20 + (2 * minLength); + int alignedUpBytes = (bytes + 7) & -8; + int dataBytes = alignedUpBytes - 20; + int size = dataBytes / 2; + return new char[size]; + } else if (componentType == int.class) { + int size = ((minLength & 1) == 0) ? minLength + 1 : minLength; + return new int[size]; + } else if (componentType == byte.class) { + int bytes = 20 + minLength; + int alignedUpBytes = (bytes + 7) & -8; + int dataBytes = alignedUpBytes - 20; + int size = dataBytes; + return new byte[size]; + } else if (componentType == boolean.class) { + int bytes = 20 + minLength; + int alignedUpBytes = (bytes + 7) & -8; + int dataBytes = alignedUpBytes - 20; + int size = dataBytes; + return new boolean[size]; + } else if (componentType == short.class) { + int bytes = 20 + (2 * minLength); + int alignedUpBytes = (bytes + 7) & -8; + int dataBytes = alignedUpBytes - 20; + int size = dataBytes / 2; + return new short[size]; + } else if (componentType == float.class) { + int size = ((minLength & 1) == 0) ? minLength + 1 : minLength; + return new float[size]; + } else if (componentType == long.class) { + return new long[minLength]; + } else if (componentType == double.class) { + return new double[minLength]; + } else { + assert componentType == void.class; + throw new IllegalArgumentException("Can't allocate an array of void"); + } + } + +} diff --git a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java index 1f7a28e..552fb6c 100644 --- a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java +++ b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/CreateInfo.java @@ -152,6 +152,7 @@ public final class CreateInfo implements ICreateInfo { "com.android.internal.util.XmlUtils#convertValueToInt", "com.android.internal.textservice.ITextServicesManager$Stub#asInterface", "android.os.SystemProperties#native_get", + "dalvik.system.VMRuntime#newUnpaddedArray" }; /** |