1 /* 2 ** 3 ** Copyright 2012, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 package android.opengl; 19 20 /** 21 * Base class for wrapped EGL objects. 22 * 23 */ 24 public abstract class EGLObjectHandle { 25 private final long mHandle; 26 27 /** 28 * @deprecated Use {@link #EGLObjectHandle(long)} instead. Handles 29 * on 64 bit platforms will be wider than java ints. 30 */ 31 @Deprecated 32 protected EGLObjectHandle(int handle) { 33 mHandle = handle; 34 } 35 protected EGLObjectHandle(long handle) { 36 mHandle = handle; 37 } 38 /** 39 * @deprecated Use {@link #getNativeHandle()} instead. Handles on 40 * 64 bit platforms will be wider than java ints. 41 */ 42 @Deprecated 43 public int getHandle() { 44 if ((mHandle & 0xffffffffL) != mHandle) { 45 throw new UnsupportedOperationException(); 46 } 47 return (int)mHandle; 48 } 49 /** 50 * Returns the native handle of the wrapped EGL object. This handle can be 51 * cast to the corresponding native type on the native side. 52 * 53 * For example, EGLDisplay dpy = (EGLDisplay)handle; 54 * 55 * @return the native handle of the wrapped EGL object. 56 */ 57 public long getNativeHandle() { 58 return mHandle; 59 } 60 @Override 61 public int hashCode() { 62 /* 63 * Based on the algorithm suggested in 64 * http://developer.android.com/reference/java/lang/Object.html 65 */ 66 int result = 17; 67 result = 31 * result + (int) (mHandle ^ (mHandle >>> 32)); 68 return result; 69 } 70 } 71
