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1 /* Copyright (C) 2003 Jean-Marc Valin */ | 1 /* Copyright (C) 2003 Jean-Marc Valin */ |
2 /** | 2 /** |
3 @file fixed_c5x.h | 3 @file fixed_c5x.h |
4 @brief Fixed-point operations for the TI C5x DSP family | 4 @brief Fixed-point operations for the TI C5x DSP family |
5 */ | 5 */ |
6 /* | 6 /* |
7 Redistribution and use in source and binary forms, with or without | 7 Redistribution and use in source and binary forms, with or without |
8 modification, are permitted provided that the following conditions | 8 modification, are permitted provided that the following conditions |
9 are met: | 9 are met: |
10 | 10 |
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27 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | 27 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
28 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef FIXED_C5X_H | 31 #ifndef FIXED_C5X_H |
32 #define FIXED_C5X_H | 32 #define FIXED_C5X_H |
33 | 33 |
34 #include "dsplib.h" | 34 #include "dsplib.h" |
35 | 35 |
36 #undef IMUL32 | 36 #undef IMUL32 |
37 static inline long IMUL32(long i, long j) | 37 static OPUS_INLINE long IMUL32(long i, long j) |
38 { | 38 { |
39 long ac0, ac1; | 39 long ac0, ac1; |
40 ac0 = _lmpy(i>>16,j); | 40 ac0 = _lmpy(i>>16,j); |
41 ac1 = ac0 + _lmpy(i,j>>16); | 41 ac1 = ac0 + _lmpy(i,j>>16); |
42 return _lmpyu(i,j) + (ac1<<16); | 42 return _lmpyu(i,j) + (ac1<<16); |
43 } | 43 } |
44 | 44 |
45 #undef MAX16 | 45 #undef MAX16 |
46 #define MAX16(a,b) _max(a,b) | 46 #define MAX16(a,b) _max(a,b) |
47 | 47 |
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70 #undef MULT16_32_Q15 | 70 #undef MULT16_32_Q15 |
71 #define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_1
6SU((a),(b)),15)) | 71 #define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_1
6SU((a),(b)),15)) |
72 | 72 |
73 #define celt_ilog2(x) (30 - _lnorm(x)) | 73 #define celt_ilog2(x) (30 - _lnorm(x)) |
74 #define OVERRIDE_CELT_ILOG2 | 74 #define OVERRIDE_CELT_ILOG2 |
75 | 75 |
76 #define celt_maxabs16(x, len) MAX32(EXTEND32(maxval((DATA *)x, len)),-EXTEND32(m
inval((DATA *)x, len))) | 76 #define celt_maxabs16(x, len) MAX32(EXTEND32(maxval((DATA *)x, len)),-EXTEND32(m
inval((DATA *)x, len))) |
77 #define OVERRIDE_CELT_MAXABS16 | 77 #define OVERRIDE_CELT_MAXABS16 |
78 | 78 |
79 #endif /* FIXED_C5X_H */ | 79 #endif /* FIXED_C5X_H */ |
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