1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  *  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  *  This code is free software; you can redistribute it and/or modify it
   6  *  under the terms of the GNU General Public License version 2 only, as
   7  *  published by the Free Software Foundation.
   8  *
   9  *  This code is distributed in the hope that it will be useful, but WITHOUT
  10  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  *  version 2 for more details (a copy is included in the LICENSE file that
  13  *  accompanied this code).
  14  *
  15  *  You should have received a copy of the GNU General Public License version
  16  *  2 along with this work; if not, write to the Free Software Foundation,
  17  *  Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *   Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  *  or visit www.oracle.com if you need additional information or have any
  21  *  questions.
  22  *
  23  */
  24 
  25 #include "jni.h"
  26 #include <stdio.h>
  27 
  28 JNIEXPORT jbyte JNICALL
  29 Java_TestNative_getByteRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
  30     jbyte *arr = (jbyte*)addr;
  31     return arr[index];
  32 }
  33 
  34 JNIEXPORT jbyte JNICALL
  35 Java_TestNative_getByteBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
  36     jlong addr = (jlong)(*env)->GetDirectBufferAddress(env, buf);
  37     return Java_TestNative_getByteRaw(env, cls, addr, index);
  38 }
  39 
  40 JNIEXPORT jchar JNICALL
  41 Java_TestNative_getCharRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
  42     jchar *arr = (jchar*)addr;
  43     return arr[index];
  44 }
  45 
  46 JNIEXPORT jchar JNICALL
  47 Java_TestNative_getCharBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
  48     jlong addr = (jlong)(*env)->GetDirectBufferAddress(env, buf);
  49     return Java_TestNative_getCharRaw(env, cls, addr, index);
  50 }
  51 
  52 JNIEXPORT jshort JNICALL
  53 Java_TestNative_getShortRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
  54     jshort *arr = (jshort*)addr;
  55     return arr[index];
  56 }
  57 
  58 JNIEXPORT jshort JNICALL
  59 Java_TestNative_getShortBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
  60     jlong addr = (jlong)(*env)->GetDirectBufferAddress(env, buf);
  61     return Java_TestNative_getShortRaw(env, cls, addr, index);
  62 }
  63 
  64 JNIEXPORT jint JNICALL
  65 Java_TestNative_getIntRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
  66     jint *arr = (jint*)addr;
  67     return arr[index];
  68 }
  69 
  70 JNIEXPORT jint JNICALL
  71 Java_TestNative_getIntBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
  72     jlong addr = (jlong)(*env)->GetDirectBufferAddress(env, buf);
  73     return Java_TestNative_getIntRaw(env, cls, addr, index);
  74 }
  75 
  76 JNIEXPORT jfloat JNICALL
  77 Java_TestNative_getFloatRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
  78     jfloat *arr = (jfloat*)addr;
  79     return arr[index];
  80 }
  81 
  82 JNIEXPORT jfloat JNICALL
  83 Java_TestNative_getFloatBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
  84     jlong addr = (jlong)(*env)->GetDirectBufferAddress(env, buf);
  85     return Java_TestNative_getFloatRaw(env, cls, addr, index);
  86 }
  87 
  88 JNIEXPORT jlong JNICALL
  89 Java_TestNative_getLongRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
  90     jlong *arr = (jlong*)addr;
  91     return arr[index];
  92 }
  93 
  94 JNIEXPORT jlong JNICALL
  95 Java_TestNative_getLongBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
  96     jlong addr = (jlong)(*env)->GetDirectBufferAddress(env, buf);
  97     return Java_TestNative_getLongRaw(env, cls, addr, index);
  98 }
  99 
 100 JNIEXPORT jdouble JNICALL
 101 Java_TestNative_getDoubleRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
 102     jdouble *arr = (jdouble*)addr;
 103     return arr[index];
 104 }
 105 
 106 JNIEXPORT jdouble JNICALL
 107 Java_TestNative_getDoubleBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
 108     jlong addr = (jlong)(*env)->GetDirectBufferAddress(env, buf);
 109     return Java_TestNative_getDoubleRaw(env, cls, addr, index);
 110 }
 111 
 112 JNIEXPORT jlong JNICALL
 113 Java_TestNative_getCapacity(JNIEnv *env, jclass cls, jobject buf) {
 114     return (*env)->GetDirectBufferCapacity(env, buf);
 115 }