diff options
Diffstat (limited to 'src/java/com/jogamp/gluegen/runtime/Buffers.java')
| -rwxr-xr-x | src/java/com/jogamp/gluegen/runtime/Buffers.java | 706 |
1 files changed, 0 insertions, 706 deletions
diff --git a/src/java/com/jogamp/gluegen/runtime/Buffers.java b/src/java/com/jogamp/gluegen/runtime/Buffers.java deleted file mode 100755 index 49f6e8b..0000000 --- a/src/java/com/jogamp/gluegen/runtime/Buffers.java +++ /dev/null @@ -1,706 +0,0 @@ -/* - * Copyright (c) 2003 Sun Microsystems, Inc. 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.gluegen.runtime; - -import java.nio.*; - -/** - * @author Kenneth Russel - * @author Sven Gothel - * @author Michael Bien - */ -public class Buffers { - - public static final int SIZEOF_BYTE = 1; - public static final int SIZEOF_SHORT = 2; - public static final int SIZEOF_CHAR = 2; - public static final int SIZEOF_INT = 4; - public static final int SIZEOF_FLOAT = 4; - public static final int SIZEOF_LONG = 8; - public static final int SIZEOF_DOUBLE = 8; - - protected Buffers() {} - - /** - * Allocates a new direct ByteBuffer with the specified number of - * elements. The returned buffer will have its byte order set to - * the host platform's native byte order. - */ - public static ByteBuffer newDirectByteBuffer(int numElements) { - return nativeOrder(ByteBuffer.allocateDirect(numElements)); - } - - public static ByteBuffer newDirectByteBuffer(byte[] values, int offset, int lenght) { - return (ByteBuffer)newDirectByteBuffer(lenght).put(values, offset, lenght).rewind(); - } - - public static ByteBuffer newDirectByteBuffer(byte[] values, int offset) { - return newDirectByteBuffer(values, offset, values.length-offset); - } - - public static ByteBuffer newDirectByteBuffer(byte[] values) { - return newDirectByteBuffer(values, 0); - } - - /** - * Allocates a new direct DoubleBuffer with the specified number of - * elements. The returned buffer will have its byte order set to - * the host platform's native byte order. - */ - public static DoubleBuffer newDirectDoubleBuffer(int numElements) { - return newDirectByteBuffer(numElements * SIZEOF_DOUBLE).asDoubleBuffer(); - } - - public static DoubleBuffer newDirectDoubleBuffer(double[] values, int offset, int lenght) { - return (DoubleBuffer)newDirectDoubleBuffer(lenght).put(values, offset, lenght).rewind(); - } - - public static DoubleBuffer newDirectDoubleBuffer(double[] values, int offset) { - return newDirectDoubleBuffer(values, offset, values.length - offset); - } - - public static DoubleBuffer newDirectDoubleBuffer(double[] values) { - return newDirectDoubleBuffer(values, 0); - } - - /** - * Allocates a new direct FloatBuffer with the specified number of - * elements. The returned buffer will have its byte order set to - * the host platform's native byte order. - */ - public static FloatBuffer newDirectFloatBuffer(int numElements) { - return newDirectByteBuffer(numElements * SIZEOF_FLOAT).asFloatBuffer(); - } - - public static FloatBuffer newDirectFloatBuffer(float[] values, int offset, int lenght) { - return (FloatBuffer)newDirectFloatBuffer(lenght).put(values, offset, lenght).rewind(); - } - - public static FloatBuffer newDirectFloatBuffer(float[] values, int offset) { - return newDirectFloatBuffer(values, offset, values.length - offset); - } - - public static FloatBuffer newDirectFloatBuffer(float[] values) { - return newDirectFloatBuffer(values, 0); - } - - /** - * Allocates a new direct IntBuffer with the specified number of - * elements. The returned buffer will have its byte order set to - * the host platform's native byte order. - */ - public static IntBuffer newDirectIntBuffer(int numElements) { - return newDirectByteBuffer(numElements * SIZEOF_INT).asIntBuffer(); - } - - public static IntBuffer newDirectIntBuffer(int[] values, int offset, int lenght) { - return (IntBuffer)newDirectIntBuffer(lenght).put(values, offset, lenght).rewind(); - } - - public static IntBuffer newDirectIntBuffer(int[] values, int offset) { - return newDirectIntBuffer(values, offset, values.length - offset); - } - - public static IntBuffer newDirectIntBuffer(int[] values) { - return newDirectIntBuffer(values, 0); - } - - /** - * Allocates a new direct LongBuffer with the specified number of - * elements. The returned buffer will have its byte order set to - * the host platform's native byte order. - */ - public static LongBuffer newDirectLongBuffer(int numElements) { - return newDirectByteBuffer(numElements * SIZEOF_LONG).asLongBuffer(); - } - - public static LongBuffer newDirectLongBuffer(long[] values, int offset, int lenght) { - return (LongBuffer)newDirectLongBuffer(lenght).put(values, offset, lenght).rewind(); - } - - public static LongBuffer newDirectLongBuffer(long[] values, int offset) { - return newDirectLongBuffer(values, offset, values.length - offset); - } - - public static LongBuffer newDirectLongBuffer(long[] values) { - return newDirectLongBuffer(values, 0); - } - - /** - * Allocates a new direct ShortBuffer with the specified number of - * elements. The returned buffer will have its byte order set to - * the host platform's native byte order. - */ - public static ShortBuffer newDirectShortBuffer(int numElements) { - return newDirectByteBuffer(numElements * SIZEOF_SHORT).asShortBuffer(); - } - - public static ShortBuffer newDirectShortBuffer(short[] values, int offset, int lenght) { - return (ShortBuffer)newDirectShortBuffer(lenght).put(values, offset, lenght).rewind(); - } - - public static ShortBuffer newDirectShortBuffer(short[] values, int offset) { - return newDirectShortBuffer(values, offset, values.length - offset); - } - - public static ShortBuffer newDirectShortBuffer(short[] values) { - return newDirectShortBuffer(values, 0); - } - - /** - * Allocates a new direct CharBuffer with the specified number of - * elements. The returned buffer will have its byte order set to - * the host platform's native byte order. - */ - public static CharBuffer newDirectCharBuffer(int numElements) { - return newDirectByteBuffer(numElements * SIZEOF_SHORT).asCharBuffer(); - } - - public static CharBuffer newDirectCharBuffer(char[] values, int offset, int lenght) { - return (CharBuffer)newDirectCharBuffer(lenght).put(values, offset, lenght).rewind(); - } - - public static CharBuffer newDirectCharBuffer(char[] values, int offset) { - return newDirectCharBuffer(values, offset, values.length - offset); - } - - public static CharBuffer newDirectCharBuffer(char[] values) { - return newDirectCharBuffer(values, 0); - } - - /** - * Helper routine to set a ByteBuffer to the native byte order, if - * that operation is supported by the underlying NIO - * implementation. - */ - public static ByteBuffer nativeOrder(ByteBuffer buf) { - if (Platform.isJavaSE()) { - return buf.order(ByteOrder.nativeOrder()); - } else { - // JSR 239 does not support the ByteOrder class or the order methods. - // The initial order of a byte buffer is the platform byte order. - return buf; - } - } - - /** - * Returns the size of a single element of this buffer in bytes. - */ - public static final int sizeOfBufferElem(Buffer buffer) { - if (buffer == null) { - return 0; - } - if (buffer instanceof ByteBuffer) { - return SIZEOF_BYTE; - } else if (buffer instanceof IntBuffer) { - return SIZEOF_INT; - } else if (buffer instanceof ShortBuffer) { - return SIZEOF_SHORT; - } else if (buffer instanceof FloatBuffer) { - return SIZEOF_FLOAT; - } else if (Platform.isJavaSE()) { - if (buffer instanceof DoubleBuffer) { - return SIZEOF_DOUBLE; - } else if (buffer instanceof LongBuffer) { - return SIZEOF_LONG; - } else if (buffer instanceof CharBuffer) { - return SIZEOF_CHAR; - } - } - throw new RuntimeException("Unexpected buffer type " + buffer.getClass().getName()); - } - - /** - * Helper routine to tell whether a buffer is direct or not. Null - * pointers are considered NOT direct. isDirect() should really be - * public in Buffer and not replicated in all subclasses. - */ - public static boolean isDirect(Object buf) { - if (buf == null) { - return true; - } - if (buf instanceof ByteBuffer) { - return ((ByteBuffer) buf).isDirect(); - } else if (buf instanceof FloatBuffer) { - return ((FloatBuffer) buf).isDirect(); - } else if (buf instanceof IntBuffer) { - return ((IntBuffer) buf).isDirect(); - } else if (buf instanceof ShortBuffer) { - return ((ShortBuffer) buf).isDirect(); - } else if (buf instanceof Int64Buffer) { - return ((Int64Buffer) buf).isDirect(); - } else if (buf instanceof PointerBuffer) { - return ((PointerBuffer) buf).isDirect(); - } else if (Platform.isJavaSE()) { - if (buf instanceof DoubleBuffer) { - return ((DoubleBuffer) buf).isDirect(); - } else if (buf instanceof LongBuffer) { - return ((LongBuffer) buf).isDirect(); - }else if (buf instanceof CharBuffer) { - return ((CharBuffer) buf).isDirect(); - } - } - throw new RuntimeException("Unexpected buffer type " + buf.getClass().getName()); - } - - /** - * Helper routine to get the Buffer byte offset by taking into - * account the Buffer position and the underlying type. This is - * the total offset for Direct Buffers. - */ - public static int getDirectBufferByteOffset(Object buf) { - if (buf == null) { - return 0; - } - if (buf instanceof Buffer) { - int pos = ((Buffer) buf).position(); - if (buf instanceof ByteBuffer) { - return pos; - } else if (buf instanceof FloatBuffer) { - return pos * SIZEOF_FLOAT; - } else if (buf instanceof IntBuffer) { - return pos * SIZEOF_INT; - } else if (buf instanceof ShortBuffer) { - return pos * SIZEOF_SHORT; - }else if(Platform.isJavaSE()) { - if (buf instanceof DoubleBuffer) { - return pos * SIZEOF_DOUBLE; - } else if (buf instanceof LongBuffer) { - return pos * SIZEOF_LONG; - } else if (buf instanceof CharBuffer) { - return pos * SIZEOF_CHAR; - } - } - } else if (buf instanceof Int64Buffer) { - Int64Buffer int64Buffer = (Int64Buffer) buf; - return int64Buffer.position() * Int64Buffer.elementSize(); - } else if (buf instanceof PointerBuffer) { - PointerBuffer pointerBuffer = (PointerBuffer) buf; - return pointerBuffer.position() * PointerBuffer.elementSize(); - } - - throw new RuntimeException("Disallowed array backing store type in buffer " + buf.getClass().getName()); - } - - /** - * Helper routine to return the array backing store reference from - * a Buffer object. - */ - public static Object getArray(Object buf) { - if (buf == null) { - return null; - } - if (buf instanceof ByteBuffer) { - return ((ByteBuffer) buf).array(); - } else if (buf instanceof FloatBuffer) { - return ((FloatBuffer) buf).array(); - } else if (buf instanceof IntBuffer) { - return ((IntBuffer) buf).array(); - } else if (buf instanceof ShortBuffer) { - return ((ShortBuffer) buf).array(); - } else if (buf instanceof Int64Buffer) { - return ((Int64Buffer) buf).array(); - } else if (buf instanceof PointerBuffer) { - return ((PointerBuffer) buf).array(); - }else if(Platform.isJavaSE()) { - if (buf instanceof DoubleBuffer) { - return ((DoubleBuffer) buf).array(); - } else if (buf instanceof LongBuffer) { - return ((LongBuffer) buf).array(); - } else if (buf instanceof CharBuffer) { - return ((CharBuffer) buf).array(); - } - } - - throw new RuntimeException("Disallowed array backing store type in buffer " + buf.getClass().getName()); - } - - /** - * Helper routine to get the full byte offset from the beginning of - * the array that is the storage for the indirect Buffer - * object. The array offset also includes the position offset - * within the buffer, in addition to any array offset. - */ - public static int getIndirectBufferByteOffset(Object buf) { - if (buf == null) { - return 0; - } - if (buf instanceof Buffer) { - int pos = ((Buffer) buf).position(); - if (buf instanceof ByteBuffer) { - return (((ByteBuffer) buf).arrayOffset() + pos); - } else if (buf instanceof FloatBuffer) { - return (SIZEOF_FLOAT * (((FloatBuffer) buf).arrayOffset() + pos)); - } else if (buf instanceof IntBuffer) { - return (SIZEOF_INT * (((IntBuffer) buf).arrayOffset() + pos)); - } else if (buf instanceof ShortBuffer) { - return (SIZEOF_SHORT * (((ShortBuffer) buf).arrayOffset() + pos)); - }else if(Platform.isJavaSE()) { - if (buf instanceof DoubleBuffer) { - return (SIZEOF_DOUBLE * (((DoubleBuffer) buf).arrayOffset() + pos)); - } else if (buf instanceof LongBuffer) { - return (SIZEOF_LONG * (((LongBuffer) buf).arrayOffset() + pos)); - } else if (buf instanceof CharBuffer) { - return (SIZEOF_CHAR * (((CharBuffer) buf).arrayOffset() + pos)); - } - } - } else if (buf instanceof Int64Buffer) { - Int64Buffer int64Buffer = (Int64Buffer) buf; - return Int64Buffer.elementSize() * (int64Buffer.arrayOffset() + int64Buffer.position()); - } else if (buf instanceof PointerBuffer) { - PointerBuffer pointerBuffer = (PointerBuffer) buf; - return PointerBuffer.elementSize() * (pointerBuffer.arrayOffset() + pointerBuffer.position()); - } - - throw new RuntimeException("Unknown buffer type " + buf.getClass().getName()); - } - - - //---------------------------------------------------------------------- - // Copy routines (type-to-type) - // - /** - * Copies the <i>remaining</i> elements (as defined by - * <code>limit() - position()</code>) in the passed ByteBuffer into - * a newly-allocated direct ByteBuffer. The returned buffer will - * have its byte order set to the host platform's native byte - * order. The position of the newly-allocated buffer will be zero, - * and the position of the passed buffer is unchanged (though its - * mark is changed). - */ - public static ByteBuffer copyByteBuffer(ByteBuffer orig) { - ByteBuffer dest = newDirectByteBuffer(orig.remaining()); - dest.put(orig); - dest.rewind(); - return dest; - } - - /** - * Copies the <i>remaining</i> elements (as defined by - * <code>limit() - position()</code>) in the passed FloatBuffer - * into a newly-allocated direct FloatBuffer. The returned buffer - * will have its byte order set to the host platform's native byte - * order. The position of the newly-allocated buffer will be zero, - * and the position of the passed buffer is unchanged (though its - * mark is changed). - */ - public static FloatBuffer copyFloatBuffer(FloatBuffer orig) { - return copyFloatBufferAsByteBuffer(orig).asFloatBuffer(); - } - - /** - * Copies the <i>remaining</i> elements (as defined by - * <code>limit() - position()</code>) in the passed IntBuffer - * into a newly-allocated direct IntBuffer. The returned buffer - * will have its byte order set to the host platform's native byte - * order. The position of the newly-allocated buffer will be zero, - * and the position of the passed buffer is unchanged (though its - * mark is changed). - */ - public static IntBuffer copyIntBuffer(IntBuffer orig) { - return copyIntBufferAsByteBuffer(orig).asIntBuffer(); - } - - /** - * Copies the <i>remaining</i> elements (as defined by - * <code>limit() - position()</code>) in the passed ShortBuffer - * into a newly-allocated direct ShortBuffer. The returned buffer - * will have its byte order set to the host platform's native byte - * order. The position of the newly-allocated buffer will be zero, - * and the position of the passed buffer is unchanged (though its - * mark is changed). - */ - public static ShortBuffer copyShortBuffer(ShortBuffer orig) { - return copyShortBufferAsByteBuffer(orig).asShortBuffer(); - } - - //---------------------------------------------------------------------- - // Copy routines (type-to-ByteBuffer) - // - /** - * Copies the <i>remaining</i> elements (as defined by - * <code>limit() - position()</code>) in the passed FloatBuffer - * into a newly-allocated direct ByteBuffer. The returned buffer - * will have its byte order set to the host platform's native byte - * order. The position of the newly-allocated buffer will be zero, - * and the position of the passed buffer is unchanged (though its - * mark is changed). - */ - public static ByteBuffer copyFloatBufferAsByteBuffer(FloatBuffer orig) { - ByteBuffer dest = newDirectByteBuffer(orig.remaining() * SIZEOF_FLOAT); - dest.asFloatBuffer().put(orig); - dest.rewind(); - return dest; - } - - /** - * Copies the <i>remaining</i> elements (as defined by - * <code>limit() - position()</code>) in the passed IntBuffer into - * a newly-allocated direct ByteBuffer. The returned buffer will - * have its byte order set to the host platform's native byte - * order. The position of the newly-allocated buffer will be zero, - * and the position of the passed buffer is unchanged (though its - * mark is changed). - */ - public static ByteBuffer copyIntBufferAsByteBuffer(IntBuffer orig) { - ByteBuffer dest = newDirectByteBuffer(orig.remaining() * SIZEOF_INT); - dest.asIntBuffer().put(orig); - dest.rewind(); - return dest; - } - - /** - * Copies the <i>remaining</i> elements (as defined by - * <code>limit() - position()</code>) in the passed ShortBuffer - * into a newly-allocated direct ByteBuffer. The returned buffer - * will have its byte order set to the host platform's native byte - * order. The position of the newly-allocated buffer will be zero, - * and the position of the passed buffer is unchanged (though its - * mark is changed). - */ - public static ByteBuffer copyShortBufferAsByteBuffer(ShortBuffer orig) { - ByteBuffer dest = newDirectByteBuffer(orig.remaining() * SIZEOF_SHORT); - dest.asShortBuffer().put(orig); - dest.rewind(); - return dest; - } - - //---------------------------------------------------------------------- - // Conversion routines - // - public final static FloatBuffer getFloatBuffer(DoubleBuffer source) { - source.rewind(); - FloatBuffer dest = newDirectFloatBuffer(source.limit()); - while (source.hasRemaining()) { - dest.put((float) source.get()); - } - return dest; - } - - //---------------------------------------------------------------------- - // Convenient put methods with generic target Buffer - // - public static Buffer put(Buffer dest, Buffer src) { - if ((dest instanceof ByteBuffer) && (src instanceof ByteBuffer)) { - return ((ByteBuffer) dest).put((ByteBuffer) src); - } else if ((dest instanceof ShortBuffer) && (src instanceof ShortBuffer)) { - return ((ShortBuffer) dest).put((ShortBuffer) src); - } else if ((dest instanceof IntBuffer) && (src instanceof IntBuffer)) { - return ((IntBuffer) dest).put((IntBuffer) src); - } else if ((dest instanceof FloatBuffer) && (src instanceof FloatBuffer)) { - return ((FloatBuffer) dest).put((FloatBuffer) src); - } else if (Platform.isJavaSE()) { - if ((dest instanceof LongBuffer) && (src instanceof LongBuffer)) { - return ((LongBuffer) dest).put((LongBuffer) src); - } else if ((dest instanceof DoubleBuffer) && (src instanceof DoubleBuffer)) { - return ((DoubleBuffer) dest).put((DoubleBuffer) src); - } else if ((dest instanceof CharBuffer) && (src instanceof CharBuffer)) { - return ((CharBuffer) dest).put((CharBuffer) src); - } - } - throw new RuntimeException("Incompatible Buffer classes: dest = " + dest.getClass().getName() + ", src = " + src.getClass().getName()); - } - - public static Buffer putb(Buffer dest, byte v) { - if (dest instanceof ByteBuffer) { - return ((ByteBuffer) dest).put(v); - } else if (dest instanceof ShortBuffer) { - return ((ShortBuffer) dest).put((short) v); - } else if (dest instanceof IntBuffer) { - return ((IntBuffer) dest).put((int) v); - } else { - throw new RuntimeException("Byte doesn't match Buffer Class: " + dest); - } - } - - public static Buffer puts(Buffer dest, short v) { - if (dest instanceof ShortBuffer) { - return ((ShortBuffer) dest).put(v); - } else if (dest instanceof IntBuffer) { - return ((IntBuffer) dest).put((int) v); - } else { - throw new RuntimeException("Short doesn't match Buffer Class: " + dest); - } - } - - public static void puti(Buffer dest, int v) { - if (dest instanceof IntBuffer) { - ((IntBuffer) dest).put(v); - } else { - throw new RuntimeException("Integer doesn't match Buffer Class: " + dest); - } - } - - public static void putf(Buffer dest, float v) { - if (dest instanceof FloatBuffer) { - ((FloatBuffer) dest).put(v); -/* TODO FixedPoint required - } else if (dest instanceof IntBuffer) { - ((IntBuffer) dest).put(FixedPoint.toFixed(v)); -*/ - } else { - throw new RuntimeException("Float doesn't match Buffer Class: " + dest); - } - } - public static void putd(Buffer dest, double v) { - if (dest instanceof FloatBuffer) { - ((FloatBuffer) dest).put((float) v); - } else { - throw new RuntimeException("Double doesn't match Buffer Class: " + dest); - } - } - - public static void rangeCheck(byte[] array, int offset, int minElementsRemaining) { - if (array == null) { - return; - } - - if (array.length < offset + minElementsRemaining) { - throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset)); - } - } - - public static void rangeCheck(char[] array, int offset, int minElementsRemaining) { - if (array == null) { - return; - } - - if (array.length < offset + minElementsRemaining) { - throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset)); - } - } - - public static void rangeCheck(short[] array, int offset, int minElementsRemaining) { - if (array == null) { - return; - } - - if (array.length < offset + minElementsRemaining) { - throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset)); - } - } - - public static void rangeCheck(int[] array, int offset, int minElementsRemaining) { - if (array == null) { - return; - } - - if (array.length < offset + minElementsRemaining) { - throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset)); - } - } - - public static void rangeCheck(long[] array, int offset, int minElementsRemaining) { - if (array == null) { - return; - } - - if (array.length < offset + minElementsRemaining) { - throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset)); - } - } - - public static void rangeCheck(float[] array, int offset, int minElementsRemaining) { - if (array == null) { - return; - } - - if (array.length < offset + minElementsRemaining) { - throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset)); - } - } - - public static void rangeCheck(double[] array, int offset, int minElementsRemaining) { - if (array == null) { - return; - } - - if (array.length < offset + minElementsRemaining) { - throw new ArrayIndexOutOfBoundsException("Required " + minElementsRemaining + " elements in array, only had " + (array.length - offset)); - } - } - - public static void rangeCheck(Buffer buffer, int minElementsRemaining) { - if (buffer == null) { - return; - } - - if (buffer.remaining() < minElementsRemaining) { - throw new IndexOutOfBoundsException("Required " + minElementsRemaining + " remaining elements in buffer, only had " + buffer.remaining()); - } - } - - public static void rangeCheckBytes(Object buffer, int minBytesRemaining) { - if (buffer == null) { - return; - } - - int bytesRemaining = 0; - if (buffer instanceof Buffer) { - int elementsRemaining = ((Buffer) buffer).remaining(); - if (buffer instanceof ByteBuffer) { - bytesRemaining = elementsRemaining; - } else if (buffer instanceof FloatBuffer) { - bytesRemaining = elementsRemaining * SIZEOF_FLOAT; - } else if (buffer instanceof IntBuffer) { - bytesRemaining = elementsRemaining * SIZEOF_INT; - } else if (buffer instanceof ShortBuffer) { - bytesRemaining = elementsRemaining * SIZEOF_SHORT; - }else if(Platform.isJavaSE()) { - if (buffer instanceof DoubleBuffer) { - bytesRemaining = elementsRemaining * SIZEOF_DOUBLE; - } else if (buffer instanceof LongBuffer) { - bytesRemaining = elementsRemaining * SIZEOF_LONG; - } else if (buffer instanceof CharBuffer) { - bytesRemaining = elementsRemaining * SIZEOF_CHAR; - } - } - } else if (buffer instanceof Int64Buffer) { - Int64Buffer int64Buffer = (Int64Buffer) buffer; - bytesRemaining = int64Buffer.remaining() * Int64Buffer.elementSize(); - } else if (buffer instanceof PointerBuffer) { - PointerBuffer pointerBuffer = (PointerBuffer) buffer; - bytesRemaining = pointerBuffer.remaining() * PointerBuffer.elementSize(); - } - if (bytesRemaining < minBytesRemaining) { - throw new IndexOutOfBoundsException("Required " + minBytesRemaining + " remaining bytes in buffer, only had " + bytesRemaining); - } - } - -} |