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/*
* Copyright (C) 2008 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.
*/
import java.nio.BufferOverflowException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.nio.ShortBuffer;
public class Main {
public static void main(String[] args) {
intFloatTest();
basicShortTest();
}
/*
* Create a buffer and fiddle with it.
*/
public static void basicShortTest() {
ByteBuffer directBuf = ByteBuffer.allocateDirect(64);
//ByteBuffer directBuf = ByteBuffer.allocateDirect(65);
ShortBuffer shortBuf = directBuf.asShortBuffer();
short[] myShorts = {
1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007,
1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015,
1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023,
1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031
};
shortBuf.position(0);
shortBuf.put(myShorts, 0, 32); // should work
shortBuf.position(0);
shortBuf.put(myShorts, 16, 16); // should work
shortBuf.put(myShorts, 16, 16); // advance to end
try {
shortBuf.put(myShorts, 0, 1); // should fail
System.err.println("ERROR: out-of-bounds put succeeded\n");
} catch (BufferOverflowException boe) {
System.out.println("Got expected buffer overflow exception");
}
try {
shortBuf.position(0);
shortBuf.put(myShorts, 0, 33); // should fail
System.err.println("ERROR: out-of-bounds put succeeded\n");
} catch (IndexOutOfBoundsException ioobe) {
System.out.println("Got expected out-of-bounds exception");
}
try {
shortBuf.position(16);
shortBuf.put(myShorts, 0, 17); // should fail
System.err.println("ERROR: out-of-bounds put succeeded\n");
} catch (BufferOverflowException boe) {
System.out.println("Got expected buffer overflow exception");
}
}
/*
* Try this with either floats or ints; ints fail with
* BufferOverflowException, floats work.
*
* From http://code.google.com/p/android/issues/detail?id=1585 .
*/
public static void intFloatTest() {
ByteBuffer direct = ByteBuffer.allocateDirect(100);
direct.order(ByteOrder.nativeOrder());
IntBuffer int1 = direct.asIntBuffer();
int data[] = new int[25];
//FloatBuffer int1 = direct.asFloatBuffer();
//float data[] = new float[25];
int1.clear ();
int1.put (data);
int1.position (0);
int1.clear ();
int1.put (data);
int1.position (0);
}
}
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