diff options
Diffstat (limited to 'lib/rbcodec/codecs/libopus/celt/mips/celt_mipsr1.h')
-rw-r--r-- | lib/rbcodec/codecs/libopus/celt/mips/celt_mipsr1.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/mips/celt_mipsr1.h b/lib/rbcodec/codecs/libopus/celt/mips/celt_mipsr1.h new file mode 100644 index 0000000000..e85661a661 --- /dev/null +++ b/lib/rbcodec/codecs/libopus/celt/mips/celt_mipsr1.h | |||
@@ -0,0 +1,151 @@ | |||
1 | /* Copyright (c) 2007-2008 CSIRO | ||
2 | Copyright (c) 2007-2010 Xiph.Org Foundation | ||
3 | Copyright (c) 2008 Gregory Maxwell | ||
4 | Written by Jean-Marc Valin and Gregory Maxwell */ | ||
5 | /* | ||
6 | Redistribution and use in source and binary forms, with or without | ||
7 | modification, are permitted provided that the following conditions | ||
8 | are met: | ||
9 | |||
10 | - Redistributions of source code must retain the above copyright | ||
11 | notice, this list of conditions and the following disclaimer. | ||
12 | |||
13 | - Redistributions in binary form must reproduce the above copyright | ||
14 | notice, this list of conditions and the following disclaimer in the | ||
15 | documentation and/or other materials provided with the distribution. | ||
16 | |||
17 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
18 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
19 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
20 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | ||
21 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
22 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
23 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
24 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
25 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
26 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
28 | */ | ||
29 | |||
30 | #ifndef __CELT_MIPSR1_H__ | ||
31 | #define __CELT_MIPSR1_H__ | ||
32 | |||
33 | #ifdef HAVE_CONFIG_H | ||
34 | #include "config.h" | ||
35 | #endif | ||
36 | |||
37 | #define CELT_C | ||
38 | |||
39 | #include "os_support.h" | ||
40 | #include "mdct.h" | ||
41 | #include <math.h> | ||
42 | #include "celt.h" | ||
43 | #include "pitch.h" | ||
44 | #include "bands.h" | ||
45 | #include "modes.h" | ||
46 | #include "entcode.h" | ||
47 | #include "quant_bands.h" | ||
48 | #include "rate.h" | ||
49 | #include "stack_alloc.h" | ||
50 | #include "mathops.h" | ||
51 | #include "float_cast.h" | ||
52 | #include <stdarg.h> | ||
53 | #include "celt_lpc.h" | ||
54 | #include "vq.h" | ||
55 | |||
56 | #define OVERRIDE_comb_filter | ||
57 | void comb_filter(opus_val32 *y, opus_val32 *x, int T0, int T1, int N, | ||
58 | opus_val16 g0, opus_val16 g1, int tapset0, int tapset1, | ||
59 | const opus_val16 *window, int overlap, int arch) | ||
60 | { | ||
61 | int i; | ||
62 | opus_val32 x0, x1, x2, x3, x4; | ||
63 | |||
64 | (void)arch; | ||
65 | |||
66 | /* printf ("%d %d %f %f\n", T0, T1, g0, g1); */ | ||
67 | opus_val16 g00, g01, g02, g10, g11, g12; | ||
68 | static const opus_val16 gains[3][3] = { | ||
69 | {QCONST16(0.3066406250f, 15), QCONST16(0.2170410156f, 15), QCONST16(0.1296386719f, 15)}, | ||
70 | {QCONST16(0.4638671875f, 15), QCONST16(0.2680664062f, 15), QCONST16(0.f, 15)}, | ||
71 | {QCONST16(0.7998046875f, 15), QCONST16(0.1000976562f, 15), QCONST16(0.f, 15)}}; | ||
72 | |||
73 | if (g0==0 && g1==0) | ||
74 | { | ||
75 | /* OPT: Happens to work without the OPUS_MOVE(), but only because the current encoder already copies x to y */ | ||
76 | if (x!=y) | ||
77 | OPUS_MOVE(y, x, N); | ||
78 | return; | ||
79 | } | ||
80 | |||
81 | g00 = MULT16_16_P15(g0, gains[tapset0][0]); | ||
82 | g01 = MULT16_16_P15(g0, gains[tapset0][1]); | ||
83 | g02 = MULT16_16_P15(g0, gains[tapset0][2]); | ||
84 | g10 = MULT16_16_P15(g1, gains[tapset1][0]); | ||
85 | g11 = MULT16_16_P15(g1, gains[tapset1][1]); | ||
86 | g12 = MULT16_16_P15(g1, gains[tapset1][2]); | ||
87 | x1 = x[-T1+1]; | ||
88 | x2 = x[-T1 ]; | ||
89 | x3 = x[-T1-1]; | ||
90 | x4 = x[-T1-2]; | ||
91 | /* If the filter didn't change, we don't need the overlap */ | ||
92 | if (g0==g1 && T0==T1 && tapset0==tapset1) | ||
93 | overlap=0; | ||
94 | |||
95 | for (i=0;i<overlap;i++) | ||
96 | { | ||
97 | opus_val16 f; | ||
98 | opus_val32 res; | ||
99 | f = MULT16_16_Q15(window[i],window[i]); | ||
100 | x0= x[i-T1+2]; | ||
101 | |||
102 | asm volatile("MULT $ac1, %0, %1" : : "r" ((int)MULT16_16_Q15((Q15ONE-f),g00)), "r" ((int)x[i-T0])); | ||
103 | |||
104 | asm volatile("MADD $ac1, %0, %1" : : "r" ((int)MULT16_16_Q15((Q15ONE-f),g01)), "r" ((int)ADD32(x[i-T0-1],x[i-T0+1]))); | ||
105 | asm volatile("MADD $ac1, %0, %1" : : "r" ((int)MULT16_16_Q15((Q15ONE-f),g02)), "r" ((int)ADD32(x[i-T0-2],x[i-T0+2]))); | ||
106 | asm volatile("MADD $ac1, %0, %1" : : "r" ((int)MULT16_16_Q15(f,g10)), "r" ((int)x2)); | ||
107 | asm volatile("MADD $ac1, %0, %1" : : "r" ((int)MULT16_16_Q15(f,g11)), "r" ((int)ADD32(x3,x1))); | ||
108 | asm volatile("MADD $ac1, %0, %1" : : "r" ((int)MULT16_16_Q15(f,g12)), "r" ((int)ADD32(x4,x0))); | ||
109 | |||
110 | asm volatile("EXTR.W %0,$ac1, %1" : "=r" (res): "i" (15)); | ||
111 | |||
112 | y[i] = x[i] + res; | ||
113 | |||
114 | x4=x3; | ||
115 | x3=x2; | ||
116 | x2=x1; | ||
117 | x1=x0; | ||
118 | } | ||
119 | |||
120 | x4 = x[i-T1-2]; | ||
121 | x3 = x[i-T1-1]; | ||
122 | x2 = x[i-T1]; | ||
123 | x1 = x[i-T1+1]; | ||
124 | |||
125 | if (g1==0) | ||
126 | { | ||
127 | /* OPT: Happens to work without the OPUS_MOVE(), but only because the current encoder already copies x to y */ | ||
128 | if (x!=y) | ||
129 | OPUS_MOVE(y+overlap, x+overlap, N-overlap); | ||
130 | return; | ||
131 | } | ||
132 | |||
133 | for (i=overlap;i<N;i++) | ||
134 | { | ||
135 | opus_val32 res; | ||
136 | x0=x[i-T1+2]; | ||
137 | |||
138 | asm volatile("MULT $ac1, %0, %1" : : "r" ((int)g10), "r" ((int)x2)); | ||
139 | |||
140 | asm volatile("MADD $ac1, %0, %1" : : "r" ((int)g11), "r" ((int)ADD32(x3,x1))); | ||
141 | asm volatile("MADD $ac1, %0, %1" : : "r" ((int)g12), "r" ((int)ADD32(x4,x0))); | ||
142 | asm volatile("EXTR.W %0,$ac1, %1" : "=r" (res): "i" (15)); | ||
143 | y[i] = x[i] + res; | ||
144 | x4=x3; | ||
145 | x3=x2; | ||
146 | x2=x1; | ||
147 | x1=x0; | ||
148 | } | ||
149 | } | ||
150 | |||
151 | #endif /* __CELT_MIPSR1_H__ */ | ||