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com.google.gwt.typedarrays.client
Class DataViewNativeEmul

java.lang.Object
  extended by 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
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
protected DataViewNativeEmul(ArrayBuffer buffer, int byteOffset, int byteLength)
           
 
Method Summary
 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 -
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