Package com.google.gwt.typedarrays.client

Class DataViewNativeEmul

java.lang.Object

com.google.gwt.typedarrays.client.DataViewNativeEmul

All Implemented Interfaces:

ArrayBufferView, DataView

public class DataViewNativeEmul
extends java.lang.Object
implements DataView

JS native implementation of DataView for platforms with typed array support but missing DataView (ie, Firefox).

Field Summary

Fields

Modifier and Type	Field	Description
protected ArrayBuffer	buffer
protected int	bufferByteOffset
protected int	byteLength
protected Uint8ArrayNative	tempBuffer	A temporary buffer used for reversing bytes.
protected Uint8ArrayNative	uint8Array	A view of the underlying buffer as bytes.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DataViewNativeEmul(ArrayBuffer buffer, int byteOffset, int byteLength)

Method Summary

Modifier and Type	Method	Description
ArrayBuffer	buffer()	Get the underlying ArrayBuffer.
int	byteLength()	Get the length of this view in bytes.
int	byteOffset()	Get the offset from the beginning of the underlying ArrayBuffer.
static DataView	create(ArrayBuffer buffer, int byteOffset, int byteLength)
float	getFloat32(int byteOffset)
float	getFloat32(int byteOffset, boolean littleEndian)
double	getFloat64(int byteOffset)
double	getFloat64(int byteOffset, boolean littleEndian)
short	getInt16(int byteOffset)
short	getInt16(int byteOffset, boolean littleEndian)
int	getInt32(int byteOffset)
int	getInt32(int byteOffset, boolean littleEndian)
byte	getInt8(int byteOffset)
int	getUint16(int byteOffset)
int	getUint16(int byteOffset, boolean littleEndian)
long	getUint32(int byteOffset)
long	getUint32(int byteOffset, boolean littleEndian)
double	getUint32AsDouble(int byteOffset)
double	getUint32AsDouble(int byteOffset, boolean littleEndian)
short	getUint8(int byteOffset)
protected void	reverseBytes(Uint8ArrayNative src, int srcOfs, int len, Uint8ArrayNative dest, int destOfs)	Copy bytes from the underlying buffer to a temporary buffer, reversing them in the process.
void	setFloat32(int byteOffset, float value)
void	setFloat32(int byteOffset, float value, boolean littleEndian)
void	setFloat64(int byteOffset, double value)
void	setFloat64(int byteOffset, double value, boolean littleEndian)
void	setInt16(int byteOffset, int value)
void	setInt16(int byteOffset, int value, boolean littleEndian)
void	setInt32(int byteOffset, int value)
void	setInt32(int byteOffset, int value, boolean littleEndian)
void	setInt8(int byteOffset, int value)
void	setUint16(int byteOffset, int value)
void	setUint16(int byteOffset, int value, boolean littleEndian)
void	setUint32(int byteOffset, long value)
void	setUint32(int byteOffset, long value, boolean littleEndian)
void	setUint32FromDouble(int byteOffset, double value)
void	setUint32FromDouble(int byteOffset, double value, boolean littleEndian)
void	setUint8(int byteOffset, int value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

buffer

protected final ArrayBuffer buffer

bufferByteOffset

protected final int bufferByteOffset

byteLength

protected final int byteLength

tempBuffer

protected final Uint8ArrayNative tempBuffer

A temporary buffer used for reversing bytes.

uint8Array

protected final Uint8ArrayNative uint8Array

A view of the underlying buffer as bytes.

Constructor Detail

DataViewNativeEmul

protected DataViewNativeEmul(ArrayBuffer buffer,
                             int byteOffset,
                             int byteLength)

Method Detail

create

public static DataView create(ArrayBuffer buffer,
                              int byteOffset,
                              int byteLength)

Parameters:

buffer -

byteOffset -

byteLength -

Returns:

a DataView instance

buffer

public ArrayBuffer buffer()

Description copied from interface: ArrayBufferView

Get the underlying ArrayBuffer.

Specified by:

buffer in interface ArrayBufferView

Returns:

the ArrayBuffer instance backing this view

byteLength

public int byteLength()

Description copied from interface: ArrayBufferView

Get the length of this view in bytes.

Specified by:

byteLength in interface ArrayBufferView

Returns:

number of bytes in this view

byteOffset

public int byteOffset()

Description copied from interface: ArrayBufferView

Get the offset from the beginning of the underlying ArrayBuffer.

Specified by:

byteOffset in interface ArrayBufferView

Returns:

0-based offset from the beginning of ArrayBufferView.buffer()

getFloat32

public float getFloat32(int byteOffset)

Specified by:

getFloat32 in interface DataView

getFloat32

public float getFloat32(int byteOffset,
                        boolean littleEndian)

Specified by:

getFloat32 in interface DataView

getFloat64

public double getFloat64(int byteOffset)

Specified by:

getFloat64 in interface DataView

getFloat64

public double getFloat64(int byteOffset,
                         boolean littleEndian)

Specified by:

getFloat64 in interface DataView

getInt16

public short getInt16(int byteOffset)

Specified by:

getInt16 in interface DataView

getInt16

public short getInt16(int byteOffset,
                      boolean littleEndian)

Specified by:

getInt16 in interface DataView

getInt32

public int getInt32(int byteOffset)

Specified by:

getInt32 in interface DataView

getInt32

public int getInt32(int byteOffset,
                    boolean littleEndian)

Specified by:

getInt32 in interface DataView

getInt8

public byte getInt8(int byteOffset)

Specified by:

getInt8 in interface DataView

getUint16

public int getUint16(int byteOffset)

Specified by:

getUint16 in interface DataView

getUint16

public int getUint16(int byteOffset,
                     boolean littleEndian)

Specified by:

getUint16 in interface DataView

getUint32

public long getUint32(int byteOffset)

Specified by:

getUint32 in interface DataView

getUint32

public long getUint32(int byteOffset,
                      boolean littleEndian)

Specified by:

getUint32 in interface DataView

getUint32AsDouble

public double getUint32AsDouble(int byteOffset)

Specified by:

getUint32AsDouble in interface DataView

Returns:

unsigned 32-bit int as a double

getUint32AsDouble

public double getUint32AsDouble(int byteOffset,
                                boolean littleEndian)

Specified by:

getUint32AsDouble in interface DataView

Returns:

unsigned 32-bit int as a double

getUint8

public short getUint8(int byteOffset)

Specified by:

getUint8 in interface DataView

setFloat32

public void setFloat32(int byteOffset,
                       float value)

Specified by:

setFloat32 in interface DataView

setFloat32

public void setFloat32(int byteOffset,
                       float value,
                       boolean littleEndian)

Specified by:

setFloat32 in interface DataView

setFloat64

public void setFloat64(int byteOffset,
                       double value)

Specified by:

setFloat64 in interface DataView

setFloat64

public void setFloat64(int byteOffset,
                       double value,
                       boolean littleEndian)

Specified by:

setFloat64 in interface DataView

setInt16

public void setInt16(int byteOffset,
                     int value)

Specified by:

setInt16 in interface DataView

setInt16

public void setInt16(int byteOffset,
                     int value,
                     boolean littleEndian)

Specified by:

setInt16 in interface DataView

setInt32

public void setInt32(int byteOffset,
                     int value)

Specified by:

setInt32 in interface DataView

setInt32

public void setInt32(int byteOffset,
                     int value,
                     boolean littleEndian)

Specified by:

setInt32 in interface DataView

setInt8

public void setInt8(int byteOffset,
                    int value)

Specified by:

setInt8 in interface DataView

setUint16

public void setUint16(int byteOffset,
                      int value)

Specified by:

setUint16 in interface DataView

setUint16

public void setUint16(int byteOffset,
                      int value,
                      boolean littleEndian)

Specified by:

setUint16 in interface DataView

setUint32

public void setUint32(int byteOffset,
                      long value)

Specified by:

setUint32 in interface DataView

setUint32

public void setUint32(int byteOffset,
                      long value,
                      boolean littleEndian)

Specified by:

setUint32 in interface DataView

setUint32FromDouble

public void setUint32FromDouble(int byteOffset,
                                double value)

Specified by:

setUint32FromDouble in interface DataView

setUint32FromDouble

public void setUint32FromDouble(int byteOffset,
                                double value,
                                boolean littleEndian)

Specified by:

setUint32FromDouble in interface DataView

setUint8

public void setUint8(int byteOffset,
                     int value)

Specified by:

setUint8 in interface DataView

reverseBytes

protected final void reverseBytes(Uint8ArrayNative src,
                                  int srcOfs,
                                  int len,
                                  Uint8ArrayNative dest,
                                  int destOfs)

Copy bytes from the underlying buffer to a temporary buffer, reversing them in the process.

Parameters:

src -

srcOfs - offset into buffer

len - number of bytes to copy

dest -

destOfs -