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diff --git a/lib/rbcodec/codecs/libopus/silk/fixed/mips/warped_autocorrelation_FIX_mipsr1.h b/lib/rbcodec/codecs/libopus/silk/fixed/mips/warped_autocorrelation_FIX_mipsr1.h
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1/***********************************************************************
2Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3Redistribution and use in source and binary forms, with or without
4modification, are permitted provided that the following conditions
5are met:
6- Redistributions of source code must retain the above copyright notice,
7this list of conditions and the following disclaimer.
8- Redistributions in binary form must reproduce the above copyright
9notice, this list of conditions and the following disclaimer in the
10documentation and/or other materials provided with the distribution.
11- Neither the name of Internet Society, IETF or IETF Trust, nor the
12names of specific contributors, may be used to endorse or promote
13products derived from this software without specific prior written
14permission.
15THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25POSSIBILITY OF SUCH DAMAGE.
26***********************************************************************/
27
28#ifndef __WARPED_AUTOCORRELATION_FIX_MIPSR1_H__
29#define __WARPED_AUTOCORRELATION_FIX_MIPSR1_H__
30
31#ifdef HAVE_CONFIG_H
32#include "config.h"
33#endif
34
35#include "main_FIX.h"
36
37#undef QC
38#define QC 10
39
40#undef QS
41#define QS 14
42
43/* Autocorrelations for a warped frequency axis */
44#define OVERRIDE_silk_warped_autocorrelation_FIX
45void silk_warped_autocorrelation_FIX(
46 opus_int32 *corr, /* O Result [order + 1] */
47 opus_int *scale, /* O Scaling of the correlation vector */
48 const opus_int16 *input, /* I Input data to correlate */
49 const opus_int warping_Q16, /* I Warping coefficient */
50 const opus_int length, /* I Length of input */
51 const opus_int order, /* I Correlation order (even) */
52 int arch /* I Run-time architecture */
53)
54{
55 opus_int n, i, lsh;
56 opus_int32 tmp1_QS=0, tmp2_QS=0, tmp3_QS=0, tmp4_QS=0, tmp5_QS=0, tmp6_QS=0, tmp7_QS=0, tmp8_QS=0, start_1=0, start_2=0, start_3=0;
57 opus_int32 state_QS[ MAX_SHAPE_LPC_ORDER + 1 ] = { 0 };
58 opus_int64 corr_QC[ MAX_SHAPE_LPC_ORDER + 1 ] = { 0 };
59 opus_int64 temp64;
60
61 opus_int32 val;
62 val = 2 * QS - QC;
63
64 /* Order must be even */
65 silk_assert( ( order & 1 ) == 0 );
66 silk_assert( 2 * QS - QC >= 0 );
67
68 /* Loop over samples */
69 for( n = 0; n < length; n=n+4 ) {
70
71 tmp1_QS = silk_LSHIFT32( (opus_int32)input[ n ], QS );
72 start_1 = tmp1_QS;
73 tmp3_QS = silk_LSHIFT32( (opus_int32)input[ n+1], QS );
74 start_2 = tmp3_QS;
75 tmp5_QS = silk_LSHIFT32( (opus_int32)input[ n+2], QS );
76 start_3 = tmp5_QS;
77 tmp7_QS = silk_LSHIFT32( (opus_int32)input[ n+3], QS );
78
79 /* Loop over allpass sections */
80 for( i = 0; i < order; i += 2 ) {
81 /* Output of allpass section */
82 tmp2_QS = silk_SMLAWB( state_QS[ i ], state_QS[ i + 1 ] - tmp1_QS, warping_Q16 );
83 corr_QC[ i ] = __builtin_mips_madd( corr_QC[ i ], tmp1_QS, start_1);
84
85 tmp4_QS = silk_SMLAWB( tmp1_QS, tmp2_QS - tmp3_QS, warping_Q16 );
86 corr_QC[ i ] = __builtin_mips_madd( corr_QC[ i ], tmp3_QS, start_2);
87
88 tmp6_QS = silk_SMLAWB( tmp3_QS, tmp4_QS - tmp5_QS, warping_Q16 );
89 corr_QC[ i ] = __builtin_mips_madd( corr_QC[ i ], tmp5_QS, start_3);
90
91 tmp8_QS = silk_SMLAWB( tmp5_QS, tmp6_QS - tmp7_QS, warping_Q16 );
92 state_QS[ i ] = tmp7_QS;
93 corr_QC[ i ] = __builtin_mips_madd( corr_QC[ i ], tmp7_QS, state_QS[0]);
94
95 /* Output of allpass section */
96 tmp1_QS = silk_SMLAWB( state_QS[ i + 1 ], state_QS[ i + 2 ] - tmp2_QS, warping_Q16 );
97 corr_QC[ i+1 ] = __builtin_mips_madd( corr_QC[ i+1 ], tmp2_QS, start_1);
98
99 tmp3_QS = silk_SMLAWB( tmp2_QS, tmp1_QS - tmp4_QS, warping_Q16 );
100 corr_QC[ i+1 ] = __builtin_mips_madd( corr_QC[ i+1 ], tmp4_QS, start_2);
101
102 tmp5_QS = silk_SMLAWB( tmp4_QS, tmp3_QS - tmp6_QS, warping_Q16 );
103 corr_QC[ i+1 ] = __builtin_mips_madd( corr_QC[ i+1 ], tmp6_QS, start_3);
104
105 tmp7_QS = silk_SMLAWB( tmp6_QS, tmp5_QS - tmp8_QS, warping_Q16 );
106 state_QS[ i + 1 ] = tmp8_QS;
107 corr_QC[ i+1 ] = __builtin_mips_madd( corr_QC[ i+1 ], tmp8_QS, state_QS[ 0 ]);
108
109 }
110 state_QS[ order ] = tmp7_QS;
111
112 corr_QC[ order ] = __builtin_mips_madd( corr_QC[ order ], tmp1_QS, start_1);
113 corr_QC[ order ] = __builtin_mips_madd( corr_QC[ order ], tmp3_QS, start_2);
114 corr_QC[ order ] = __builtin_mips_madd( corr_QC[ order ], tmp5_QS, start_3);
115 corr_QC[ order ] = __builtin_mips_madd( corr_QC[ order ], tmp7_QS, state_QS[ 0 ]);
116 }
117
118 for(;n< length; n++ ) {
119
120 tmp1_QS = silk_LSHIFT32( (opus_int32)input[ n ], QS );
121
122 /* Loop over allpass sections */
123 for( i = 0; i < order; i += 2 ) {
124
125 /* Output of allpass section */
126 tmp2_QS = silk_SMLAWB( state_QS[ i ], state_QS[ i + 1 ] - tmp1_QS, warping_Q16 );
127 state_QS[ i ] = tmp1_QS;
128 corr_QC[ i ] = __builtin_mips_madd( corr_QC[ i ], tmp1_QS, state_QS[ 0 ]);
129
130 /* Output of allpass section */
131 tmp1_QS = silk_SMLAWB( state_QS[ i + 1 ], state_QS[ i + 2 ] - tmp2_QS, warping_Q16 );
132 state_QS[ i + 1 ] = tmp2_QS;
133 corr_QC[ i+1 ] = __builtin_mips_madd( corr_QC[ i+1 ], tmp2_QS, state_QS[ 0 ]);
134 }
135 state_QS[ order ] = tmp1_QS;
136 corr_QC[ order ] = __builtin_mips_madd( corr_QC[ order ], tmp1_QS, state_QS[ 0 ]);
137 }
138
139 temp64 = corr_QC[ 0 ];
140 temp64 = __builtin_mips_shilo(temp64, val);
141
142 lsh = silk_CLZ64( temp64 ) - 35;
143 lsh = silk_LIMIT( lsh, -12 - QC, 30 - QC );
144 *scale = -( QC + lsh );
145 silk_assert( *scale >= -30 && *scale <= 12 );
146 if( lsh >= 0 ) {
147 for( i = 0; i < order + 1; i++ ) {
148 temp64 = corr_QC[ i ];
149 //temp64 = __builtin_mips_shilo(temp64, val);
150 temp64 = (val >= 0) ? (temp64 >> val) : (temp64 << -val);
151 corr[ i ] = (opus_int32)silk_CHECK_FIT32( __builtin_mips_shilo( temp64, -lsh ) );
152 }
153 } else {
154 for( i = 0; i < order + 1; i++ ) {
155 temp64 = corr_QC[ i ];
156 //temp64 = __builtin_mips_shilo(temp64, val);
157 temp64 = (val >= 0) ? (temp64 >> val) : (temp64 << -val);
158 corr[ i ] = (opus_int32)silk_CHECK_FIT32( __builtin_mips_shilo( temp64, -lsh ) );
159 }
160 }
161
162 corr_QC[ 0 ] = __builtin_mips_shilo(corr_QC[ 0 ], val);
163
164 silk_assert( corr_QC[ 0 ] >= 0 ); /* If breaking, decrease QC*/
165}
166#endif /* __WARPED_AUTOCORRELATION_FIX_MIPSR1_H__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-20 07:14:29 +0000