github.com/balzaczyy/golucene@v0.0.0-20151210033525-d0be9ee89713/core/util/packed/bulkOperation2.go (about)

     1  // This file has been automatically generated, DO NOT EDIT
     2  
     3  		package packed
     4  
     5  		// Efficient sequential read/write of packed integers.
     6  type BulkOperationPacked2 struct {
     7  	*BulkOperationPacked
     8  }
     9  
    10  func newBulkOperationPacked2() BulkOperation {
    11  	return &BulkOperationPacked2{newBulkOperationPacked(2)}
    12  }
    13  
    14  func (op *BulkOperationPacked2) decodeLongToInt(blocks []int64, values []int32, iterations int) {
    15  	blocksOffset, valuesOffset := 0, 0
    16  	for i := 0; i < iterations; i ++ {
    17  		block := blocks[blocksOffset]; blocksOffset++
    18  		for shift := uint(62); shift >= 0; shift -= 2 {
    19  			values[valuesOffset] = int32((int64(uint64(block) >> shift)) & 3); valuesOffset++
    20  		}
    21  	}
    22  }
    23  
    24  func (op *BulkOperationPacked2) decodeByteToInt(blocks []byte, values []int32, iterations int) {
    25  	blocksOffset, valuesOffset := 0, 0
    26  	for j := 0; j < iterations; j ++ {
    27  		block := blocks[blocksOffset]
    28  		blocksOffset++
    29  		values[valuesOffset] = int32(byte(uint8(block)) >> 6) & 3
    30  		valuesOffset++
    31  		values[valuesOffset] = int32(byte(uint8(block)) >> 4) & 3
    32  		valuesOffset++
    33  		values[valuesOffset] = int32(byte(uint8(block)) >> 2) & 3
    34  		valuesOffset++
    35  		values[valuesOffset] = int32(block & 3)
    36  		valuesOffset++
    37  	}
    38  }
    39  func (op *BulkOperationPacked2) decodeLongToLong(blocks []int64, values []int64, iterations int) {
    40  	blocksOffset, valuesOffset := 0, 0
    41  	for i := 0; i < iterations; i ++ {
    42  		block := blocks[blocksOffset]; blocksOffset++
    43  		for shift := uint(62); shift >= 0; shift -= 2 {
    44  			values[valuesOffset] = (int64(uint64(block) >> shift)) & 3; valuesOffset++
    45  		}
    46  	}
    47  }
    48  
    49  func (op *BulkOperationPacked2) decodeByteToLong(blocks []byte, values []int64, iterations int) {
    50  	blocksOffset, valuesOffset := 0, 0
    51  	for j := 0; j < iterations; j ++ {
    52  		block := blocks[blocksOffset]
    53  		blocksOffset++
    54  		values[valuesOffset] = int64(byte(uint8(block)) >> 6) & 3
    55  		valuesOffset++
    56  		values[valuesOffset] = int64(byte(uint8(block)) >> 4) & 3
    57  		valuesOffset++
    58  		values[valuesOffset] = int64(byte(uint8(block)) >> 2) & 3
    59  		valuesOffset++
    60  		values[valuesOffset] = int64(block & 3)
    61  		valuesOffset++
    62  	}
    63  }