| java.lang.Object
 com.sun.j3d.utils.geometry.compression.CompressionStreamElement
All known Subclasses: com.sun.j3d.utils.geometry.compression.CompressionStreamNormal, com.sun.j3d.utils.geometry.compression.CompressionStreamColor, com.sun.j3d.utils.geometry.compression.CompressionStreamVertex,
| CompressionStreamElement | | abstract class CompressionStreamElement (Code) | | Instances of this class are used as elements in a CompressionStream.
See Also: CompressionStream |
| Field Summary | |
| boolean | absolute
If false, geometric component values are represented as differences
from those of the preceding element in the stream. | | int | length
Bit length of quantized geometric components. | | final static long | lengthMask
Array with elements that can be used as masks to retain the number of
trailing bits of data indicated by the referencing index [0..64]. | | final static int | quantizationMask
Array with elements that can be used as masks to apply a quantization
to the number of bits indicated by the referencing index [0..16]. | | int | shift
Number of trailing zeros in quantized geometric components. |
| absolute | | boolean absolute(Code) | | If false, geometric component values are represented as differences
from those of the preceding element in the stream.
|
| length | | int length(Code) | | Bit length of quantized geometric components.
|
| lengthMask | | final static long lengthMask(Code) | | Array with elements that can be used as masks to retain the number of
trailing bits of data indicated by the referencing index [0..64]. Used
to clear the leading sign bits of fixed-point 2's complement numbers
and in building the compressed output stream.
|
| quantizationMask | | final static int quantizationMask(Code) | | Array with elements that can be used as masks to apply a quantization
to the number of bits indicated by the referencing index [0..16].
|
| shift | | int shift(Code) | | Number of trailing zeros in quantized geometric components.
|
| computeLengthShift | | final void computeLengthShift(int n0, int n1)(Code) | | Computes common length and shift of 2 numbers.
|
| computeLengthShift | | final void computeLengthShift(int n0, int n1, int n2)(Code) | | Computes common length and shift of 3 numbers.
|
| computeLengthShift | | final void computeLengthShift(int n0, int n1, int n2, int n3)(Code) | | Computes common length and shift of 4 numbers.
|
| outputCommand | | void outputCommand(HuffmanTable table, CommandStream output)(Code) | | Outputs the compressed bits representing this stream element.
Some instances of CompressionStreamElement don't require an
implementation and will inherit the stub provided here.
Parameters:
table - HuffmanTable mapping quantized representations tocompressed encodings
Parameters:
output - CommandStream for collecting compressed output |
| quantize | | abstract void quantize(CompressionStream stream, HuffmanTable table)(Code) | | Computes the quantized representation of this stream element.
Parameters:
stream - CompressionStream associated with this element
Parameters:
table - HuffmanTable for collecting data about the quantizedrepresentation of this element |
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