LbmRidReader.cpp File Reference

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Functions
	FENNEL_BEGIN_CPPFILE ("$Id: //open/dev/fennel/lucidera/bitmap/LbmRidReader.cpp#10 $")
	FENNEL_END_CPPFILE ("$Id: //open/dev/fennel/lucidera/bitmap/LbmRidReader.cpp#10 $")
Variables
static const uint	firstOneBit [256]
	The array below provides a quick method of determining the first bit set in a byte value and therefore, how many bits to shift to the right to locate the first set bit.

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Function Documentation

FENNEL_BEGIN_CPPFILE

(

"$Id: //open/dev/fennel/lucidera/bitmap/LbmRidReader.cpp#10 $"

)

FENNEL_END_CPPFILE

(

"$Id: //open/dev/fennel/lucidera/bitmap/LbmRidReader.cpp#10 $"

)

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Variable Documentation

const uint firstOneBit[256] [static]

Initial value:

 {
8, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0,
4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0
}

The array below provides a quick method of determining the first bit set in a byte value and therefore, how many bits to shift to the right to locate the first set bit.

To use the array, index into the array using the current byte value. Whatever value is returned from the array is the number of bits that need to be shifted.

Definition at line 35 of file LbmRidReader.cpp.

Referenced by LbmRidReaderBase::searchForNextRid().

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