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/*
* Copyright (c) 2010, Michael Bien
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Michael Bien nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 Michael Bien 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.
*/
/*
* Created on Sunday, March 28 2010 14:43
*/
package com.jogamp.gluegen.runtime;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
import java.nio.ShortBuffer;
/**
* Utility class for querying platform specific properties.
* @author Michael Bien
*/
public class Platform {
public static final boolean JAVA_SE;
public static final boolean LITTLE_ENDIAN;
static {
// platform
// fast path
boolean se = System.getProperty("java.runtime.name").indexOf("Java SE") != -1;
if(!se) {
try{
Class.forName("java.nio.LongBuffer");
Class.forName("java.nio.DoubleBuffer");
se = true;
}catch(ClassNotFoundException ex) {
se = false;
}
}
JAVA_SE = se;
// byte order
ByteBuffer tst_b = Buffers.newDirectByteBuffer(Buffers.SIZEOF_INT); // 32bit in native order
IntBuffer tst_i = tst_b.asIntBuffer();
ShortBuffer tst_s = tst_b.asShortBuffer();
tst_i.put(0, 0x0A0B0C0D);
LITTLE_ENDIAN = 0x0C0D == tst_s.get(0);
}
private Platform() {}
/**
* Returns true only if this program is running on the Java Standard Edition.
*/
public static boolean isJavaSE() {
return JAVA_SE;
}
/**
* Returns true only if this system uses little endian byte ordering.
*/
public static boolean isLittleEndian() {
return LITTLE_ENDIAN;
}
/**
* Returns the OS name.
*/
public static String getOS() {
return System.getProperty("os.name");
}
/**
* Returns the CPU architecture String.
*/
public static String getArch() {
return System.getProperty("os.arch");
}
/**
* Returns true if this JVM is a 32bit JVM.
*/
public static boolean is32Bit() {
return CPU.is32Bit();
}
}
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