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/*
* Copyright 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package com.jogamp.opencl;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
import java.util.Random;
import static java.lang.System.*;
import static org.junit.Assert.*;
/**
* @author Michael Bien
*/
public class TestUtils {
//decrease this value on systems with few memory.
final static int ONE_MB = 1048576;
final static int NUM_ELEMENTS = 10000000;
public static ByteBuffer fillBuffer(ByteBuffer buffer, int seed) {
Random rnd = new Random(seed);
while(buffer.remaining() != 0)
buffer.putInt(rnd.nextInt());
buffer.rewind();
return buffer;
}
public static FloatBuffer fillBuffer(FloatBuffer buffer, int seed) {
Random rnd = new Random(seed);
while(buffer.remaining() != 0)
buffer.put(rndFloat(rnd));
buffer.rewind();
return buffer;
}
public static float rndFloat(Random rnd) {
return rndFloat(rnd, 100);
}
public static float rndFloat(Random rnd, float range) {
return (rnd.nextFloat()-0.5f)*range*2;
}
public static void checkIfEqual(ByteBuffer a, ByteBuffer b, int elements) {
for(int i = 0; i < elements; i++) {
int aVal = a.getInt();
int bVal = b.getInt();
if(aVal != bVal) {
out.println("a: "+aVal);
out.println("b: "+bVal);
out.println("position: "+a.position());
fail("a!=b");
}
}
a.rewind();
b.rewind();
}
}
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