diff options
Diffstat (limited to 'src/java/com/jogamp/common/os/MachineDescription.java')
| -rw-r--r-- | src/java/com/jogamp/common/os/MachineDescription.java | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/java/com/jogamp/common/os/MachineDescription.java b/src/java/com/jogamp/common/os/MachineDescription.java new file mode 100644 index 0000000..a407187 --- /dev/null +++ b/src/java/com/jogamp/common/os/MachineDescription.java @@ -0,0 +1,223 @@ +/* + * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. + * Copyright (c) 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: + * + * - Redistribution of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistribution 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 Sun Microsystems, Inc. or the names of + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * This software is provided "AS IS," without a warranty of any kind. ALL + * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, + * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN + * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR + * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR + * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE + * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, + * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF + * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + * + * You acknowledge that this software is not designed or intended for use + * in the design, construction, operation or maintenance of any nuclear + * facility. + * + * Sun gratefully acknowledges that this software was originally authored + * and developed by Kenneth Bradley Russell and Christopher John Kline. + */ + +package com.jogamp.common.os; + +import com.jogamp.common.util.VersionUtil; + +/** + * For alignment and size see {@link com.jogamp.gluegen} + */ +public class MachineDescription { + final private boolean runtimeValidated; + + final private boolean littleEndian; + + final private int int8SizeInBytes = 1; + final private int int16SizeInBytes = 2; + final private int int32SizeInBytes = 4; + final private int int64SizeInBytes = 8; + + final private int charSizeInBytes; + final private int shortSizeInBytes; + final private int intSizeInBytes; + final private int longSizeInBytes; + final private int floatSizeInBytes; + final private int doubleSizeInBytes; + final private int pointerSizeInBytes; + final private int pageSizeInBytes; + final private boolean is32Bit; + + final private int int8AlignmentInBytes; + final private int int16AlignmentInBytes; + final private int int32AlignmentInBytes; + final private int int64AlignmentInBytes; + final private int charAlignmentInBytes; + final private int shortAlignmentInBytes; + final private int intAlignmentInBytes; + final private int longAlignmentInBytes; + final private int floatAlignmentInBytes; + final private int doubleAlignmentInBytes; + final private int pointerAlignmentInBytes; + + public MachineDescription(boolean runtimeValidated, + + boolean littleEndian, + + int charSizeInBytes, + int shortSizeInBytes, + int intSizeInBytes, + int longSizeInBytes, + int floatSizeInBytes, + int doubleSizeInBytes, + int pointerSizeInBytes, + int pageSizeInBytes, + + int int8AlignmentInBytes, + int int16AlignmentInBytes, + int int32AlignmentInBytes, + int int64AlignmentInBytes, + int charAlignmentInBytes, + int shortAlignmentInBytes, + int intAlignmentInBytes, + int longAlignmentInBytes, + int floatAlignmentInBytes, + int doubleAlignmentInBytes, + int pointerAlignmentInBytes) { + this.runtimeValidated = runtimeValidated; + + this.littleEndian = littleEndian; + + this.charSizeInBytes = charSizeInBytes; + this.shortSizeInBytes = shortSizeInBytes; + this.intSizeInBytes = intSizeInBytes; + this.longSizeInBytes = longSizeInBytes; + this.floatSizeInBytes = floatSizeInBytes; + this.doubleSizeInBytes = doubleSizeInBytes; + this.pointerSizeInBytes = pointerSizeInBytes; + this.pageSizeInBytes = pageSizeInBytes; + this.is32Bit = 4 == pointerSizeInBytes; + + this.int8AlignmentInBytes = int8AlignmentInBytes; + this.int16AlignmentInBytes = int16AlignmentInBytes; + this.int32AlignmentInBytes = int32AlignmentInBytes; + this.int64AlignmentInBytes = int64AlignmentInBytes; + this.charAlignmentInBytes = charAlignmentInBytes; + this.shortAlignmentInBytes = shortAlignmentInBytes; + this.intAlignmentInBytes = intAlignmentInBytes; + this.longAlignmentInBytes = longAlignmentInBytes; + this.floatAlignmentInBytes = floatAlignmentInBytes; + this.doubleAlignmentInBytes = doubleAlignmentInBytes; + this.pointerAlignmentInBytes = pointerAlignmentInBytes; + } + + /** + * @return true if all values are validated at runtime, otherwise false (i.e. for static compilation w/ preset values) + */ + public final boolean isRuntimeValidated() { + return runtimeValidated; + } + + /** + * Returns true only if this system uses little endian byte ordering. + */ + public final boolean isLittleEndian() { + return littleEndian; + } + + /** + * Returns true if this JVM/ARCH is 32bit. + */ + public final boolean is32Bit() { + return is32Bit; + } + + /** + * Returns true if this JVM/ARCH is 64bit. + */ + public final boolean is64Bit() { + return !is32Bit; + } + + public final int charSizeInBytes() { return charSizeInBytes; } + public final int shortSizeInBytes() { return shortSizeInBytes; } + public final int intSizeInBytes() { return intSizeInBytes; } + public final int longSizeInBytes() { return longSizeInBytes; } + public final int int8SizeInBytes() { return int8SizeInBytes; } + public final int int16SizeInBytes() { return int16SizeInBytes; } + public final int int32SizeInBytes() { return int32SizeInBytes; } + public final int int64SizeInBytes() { return int64SizeInBytes; } + public final int floatSizeInBytes() { return floatSizeInBytes; } + public final int doubleSizeInBytes() { return doubleSizeInBytes; } + public final int pointerSizeInBytes() { return pointerSizeInBytes; } + public final int pageSizeInBytes() { return pageSizeInBytes; } + + public final int charAlignmentInBytes() { return charAlignmentInBytes; } + public final int shortAlignmentInBytes() { return shortAlignmentInBytes; } + public final int intAlignmentInBytes() { return intAlignmentInBytes; } + public final int longAlignmentInBytes() { return longAlignmentInBytes; } + public final int int8AlignmentInBytes() { return int8AlignmentInBytes; } + public final int int16AlignmentInBytes() { return int16AlignmentInBytes; } + public final int int32AlignmentInBytes() { return int32AlignmentInBytes; } + public final int int64AlignmentInBytes() { return int64AlignmentInBytes; } + public final int floatAlignmentInBytes() { return floatAlignmentInBytes; } + public final int doubleAlignmentInBytes() { return doubleAlignmentInBytes; } + public final int pointerAlignmentInBytes() { return pointerAlignmentInBytes; } + + /** + * @return number of pages required for size in bytes + */ + public int pageCount(int size) { + return ( size + ( pageSizeInBytes - 1) ) / pageSizeInBytes ; // integer arithmetic + } + + /** + * @return page aligned size in bytes + */ + public int pageAlignedSize(int size) { + return pageCount(size) * pageSizeInBytes; + } + + public StringBuilder toString(StringBuilder sb) { + if(null==sb) { + sb = new StringBuilder(); + } + sb.append("MachineDescription: runtimeValidated ").append(isRuntimeValidated()).append(", littleEndian ").append(isLittleEndian()).append(", 32Bit ").append(is32Bit()).append(", primitive size / alignment:").append(Platform.getNewline()); + sb.append(" char ").append(charSizeInBytes) .append(" / ").append(charAlignmentInBytes); + sb.append(", short ").append(shortSizeInBytes) .append(" / ").append(shortAlignmentInBytes); + sb.append(", int ").append(intSizeInBytes) .append(" / ").append(intAlignmentInBytes); + sb.append(", long ").append(longSizeInBytes) .append(" / ").append(longAlignmentInBytes).append(Platform.getNewline()); + sb.append(" int8 ").append(int8SizeInBytes) .append(" / ").append(int8AlignmentInBytes); + sb.append(", int16 ").append(int16SizeInBytes) .append(" / ").append(int16AlignmentInBytes); + sb.append(", int32 ").append(int32SizeInBytes) .append(" / ").append(int32AlignmentInBytes); + sb.append(", int64 ").append(int64SizeInBytes) .append(" / ").append(int64AlignmentInBytes).append(Platform.getNewline()); + sb.append(" float ").append(floatSizeInBytes) .append(" / ").append(floatAlignmentInBytes); + sb.append(", double ").append(doubleSizeInBytes) .append(" / ").append(doubleAlignmentInBytes); + sb.append(", pointer ").append(pointerSizeInBytes).append(" / ").append(pointerAlignmentInBytes); + sb.append(", page ").append(pageSizeInBytes); + return sb; + } + + @Override + public String toString() { + return toString(null).toString(); + } + +} |