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quality_coeffs.h
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1 /*
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27 
28 #pragma once
29 
30 #include <nvbio/basic/types.h>
31 
32 namespace nvbio {
33 namespace bowtie2 {
34 
37 extern unsigned char s_phred_to_maq[];
38 
41 extern unsigned char s_solexa_to_phred[];
42 
44 char phred_to_maq(int q)
45 {
46  return
47  q < 5 ?
48  0 :
49  (q < 15) ?
50  10 :
51  (q < 25) ?
52  20 :
53  30;
54 }
55 
56 } // namespace bowtie2
57 } // namespace nvbio