diff options
Diffstat (limited to 'lib/rbcodec/codecs/libopus/celt/fixed_c5x.h')
-rw-r--r-- | lib/rbcodec/codecs/libopus/celt/fixed_c5x.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/fixed_c5x.h b/lib/rbcodec/codecs/libopus/celt/fixed_c5x.h new file mode 100644 index 0000000000..ea95a998c3 --- /dev/null +++ b/lib/rbcodec/codecs/libopus/celt/fixed_c5x.h | |||
@@ -0,0 +1,79 @@ | |||
1 | /* Copyright (C) 2003 Jean-Marc Valin */ | ||
2 | /** | ||
3 | @file fixed_c5x.h | ||
4 | @brief Fixed-point operations for the TI C5x DSP family | ||
5 | */ | ||
6 | /* | ||
7 | Redistribution and use in source and binary forms, with or without | ||
8 | modification, are permitted provided that the following conditions | ||
9 | are met: | ||
10 | |||
11 | - Redistributions of source code must retain the above copyright | ||
12 | notice, this list of conditions and the following disclaimer. | ||
13 | |||
14 | - Redistributions in binary form must reproduce the above copyright | ||
15 | notice, this list of conditions and the following disclaimer in the | ||
16 | documentation and/or other materials provided with the distribution. | ||
17 | |||
18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
19 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
20 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
21 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | ||
22 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
23 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
24 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
25 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
26 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
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. | ||
29 | */ | ||
30 | |||
31 | #ifndef FIXED_C5X_H | ||
32 | #define FIXED_C5X_H | ||
33 | |||
34 | #include "dsplib.h" | ||
35 | |||
36 | #undef IMUL32 | ||
37 | static OPUS_INLINE long IMUL32(long i, long j) | ||
38 | { | ||
39 | long ac0, ac1; | ||
40 | ac0 = _lmpy(i>>16,j); | ||
41 | ac1 = ac0 + _lmpy(i,j>>16); | ||
42 | return _lmpyu(i,j) + (ac1<<16); | ||
43 | } | ||
44 | |||
45 | #undef MAX16 | ||
46 | #define MAX16(a,b) _max(a,b) | ||
47 | |||
48 | #undef MIN16 | ||
49 | #define MIN16(a,b) _min(a,b) | ||
50 | |||
51 | #undef MAX32 | ||
52 | #define MAX32(a,b) _lmax(a,b) | ||
53 | |||
54 | #undef MIN32 | ||
55 | #define MIN32(a,b) _lmin(a,b) | ||
56 | |||
57 | #undef VSHR32 | ||
58 | #define VSHR32(a, shift) _lshl(a,-(shift)) | ||
59 | |||
60 | #undef MULT16_16_Q15 | ||
61 | #define MULT16_16_Q15(a,b) (_smpy(a,b)) | ||
62 | |||
63 | #undef MULT16_16SU | ||
64 | #define MULT16_16SU(a,b) _lmpysu(a,b) | ||
65 | |||
66 | #undef MULT_16_16 | ||
67 | #define MULT_16_16(a,b) _lmpy(a,b) | ||
68 | |||
69 | /* FIXME: This is technically incorrect and is bound to cause problems. Is there any cleaner solution? */ | ||
70 | #undef MULT16_32_Q15 | ||
71 | #define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_16SU((a),(b)),15)) | ||
72 | |||
73 | #define celt_ilog2(x) (30 - _lnorm(x)) | ||
74 | #define OVERRIDE_CELT_ILOG2 | ||
75 | |||
76 | #define celt_maxabs16(x, len) MAX32(EXTEND32(maxval((DATA *)x, len)),-EXTEND32(minval((DATA *)x, len))) | ||
77 | #define OVERRIDE_CELT_MAXABS16 | ||
78 | |||
79 | #endif /* FIXED_C5X_H */ | ||