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1 /******************************************************************************
2  *
3  *  Copyright 2014 The Android Open Source Project
4  *  Copyright 2003 - 2004 Open Interface North America, Inc. All rights
5  *                        reserved.
6  *
7  *  Licensed under the Apache License, Version 2.0 (the "License");
8  *  you may not use this file except in compliance with the License.
9  *  You may obtain a copy of the License at:
10  *
11  *  http://www.apache.org/licenses/LICENSE-2.0
12  *
13  *  Unless required by applicable law or agreed to in writing, software
14  *  distributed under the License is distributed on an "AS IS" BASIS,
15  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  *  See the License for the specific language governing permissions and
17  *  limitations under the License.
18  *
19  ******************************************************************************/
20 
21 /**
22  @file
23 
24  DO NOT EDIT THIS FILE DIRECTLY
25 
26  This file is automatically generated by the "synthesis-gen.pl" script.
27  Any changes to this generated file will be lost when the script is re-run.
28 
29  These functions are called by functions in synthesis.c to perform the synthesis
30  filterbank computations for the SBC decoder.
31 
32 
33  */
34 
35 #include <oi_codec_sbc_private.h>
36 
37 #ifndef CLIP_INT16
38 #define CLIP_INT16(x)                \
39   do {                               \
40     if ((x) > OI_INT16_MAX) {        \
41       (x) = OI_INT16_MAX;            \
42     } else if ((x) < OI_INT16_MIN) { \
43       (x) = OI_INT16_MIN;            \
44     }                                \
45   } while (0)
46 #endif
47 
48 #define MUL_16S_16S(_x, _y) ((_x) * (_y))
49 
SynthWindow80_generated(int16_t * pcm,SBC_BUFFER_T const * RESTRICT buffer,OI_UINT strideShift)50 PRIVATE void SynthWindow80_generated(int16_t* pcm,
51                                      SBC_BUFFER_T const* RESTRICT buffer,
52                                      OI_UINT strideShift) {
53   int32_t pcm_a, pcm_b;
54   /* 1 - stage 0 */ pcm_b = 0;
55   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(8235, buffer[12])) >> 3;
56   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(-23167, buffer[20])) >> 3;
57   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(26479, buffer[28])) >> 2;
58   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(-17397, buffer[36])) << 1;
59   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(9399, buffer[44])) << 3;
60   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(17397, buffer[52])) << 1;
61   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(26479, buffer[60])) >> 2;
62   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(23167, buffer[68])) >> 3;
63   /* 1 - stage 0 */ pcm_b += (MUL_16S_16S(8235, buffer[76])) >> 3;
64   /* 1 - stage 0 */ pcm_b /= 32768;
65   CLIP_INT16(pcm_b);
66   pcm[0 << strideShift] = (int16_t)pcm_b;
67   /* 1 - stage 1 */ pcm_a = 0;
68   /* 1 - stage 1 */ pcm_b = 0;
69   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(-3263, buffer[5])) >> 5;
70   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(9293, buffer[5])) >> 3;
71   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(29293, buffer[11])) >> 5;
72   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(-6087, buffer[11])) >> 2;
73   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(-5229, buffer[21]));
74   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(1247, buffer[21])) << 3;
75   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(30835, buffer[27])) >> 3;
76   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(-2893, buffer[27])) << 3;
77   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(-27021, buffer[37])) << 1;
78   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(23671, buffer[37])) << 2;
79   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(31633, buffer[43])) << 1;
80   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(18055, buffer[43])) << 1;
81   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(17319, buffer[53])) << 1;
82   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(11537, buffer[53])) >> 1;
83   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(26663, buffer[59])) >> 2;
84   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(1747, buffer[59])) << 1;
85   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(4555, buffer[69])) >> 1;
86   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(685, buffer[69])) << 1;
87   /* 1 - stage 1 */ pcm_a += (MUL_16S_16S(12419, buffer[75])) >> 4;
88   /* 1 - stage 1 */ pcm_b += (MUL_16S_16S(8721, buffer[75])) >> 7;
89   /* 1 - stage 1 */ pcm_a /= 32768;
90   CLIP_INT16(pcm_a);
91   pcm[1 << strideShift] = (int16_t)pcm_a;
92   /* 1 - stage 1 */ pcm_b /= 32768;
93   CLIP_INT16(pcm_b);
94   pcm[7 << strideShift] = (int16_t)pcm_b;
95   /* 1 - stage 2 */ pcm_a = 0;
96   /* 1 - stage 2 */ pcm_b = 0;
97   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(-10385, buffer[6])) >> 6;
98   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(11167, buffer[6])) >> 4;
99   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(24995, buffer[10])) >> 5;
100   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(-10337, buffer[10])) >> 4;
101   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(-309, buffer[22])) << 4;
102   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(1917, buffer[22])) << 2;
103   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(9161, buffer[26])) >> 3;
104   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(-30605, buffer[26])) >> 1;
105   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(-23063, buffer[38])) << 1;
106   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(8317, buffer[38])) << 3;
107   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(27561, buffer[42])) << 1;
108   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(9553, buffer[42])) << 2;
109   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(2309, buffer[54])) << 3;
110   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(22117, buffer[54])) >> 4;
111   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(12705, buffer[58])) >> 1;
112   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(16383, buffer[58])) >> 2;
113   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(6239, buffer[70])) >> 3;
114   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(7543, buffer[70])) >> 3;
115   /* 1 - stage 2 */ pcm_a += (MUL_16S_16S(9251, buffer[74])) >> 4;
116   /* 1 - stage 2 */ pcm_b += (MUL_16S_16S(8603, buffer[74])) >> 6;
117   /* 1 - stage 2 */ pcm_a /= 32768;
118   CLIP_INT16(pcm_a);
119   pcm[2 << strideShift] = (int16_t)pcm_a;
120   /* 1 - stage 2 */ pcm_b /= 32768;
121   CLIP_INT16(pcm_b);
122   pcm[6 << strideShift] = (int16_t)pcm_b;
123   /* 1 - stage 3 */ pcm_a = 0;
124   /* 1 - stage 3 */ pcm_b = 0;
125   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(-16457, buffer[7])) >> 6;
126   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(16913, buffer[7])) >> 5;
127   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(19083, buffer[9])) >> 5;
128   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(-8443, buffer[9])) >> 7;
129   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(-23641, buffer[23])) >> 2;
130   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(3687, buffer[23])) << 1;
131   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(-29015, buffer[25])) >> 4;
132   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(-301, buffer[25])) << 5;
133   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(-12889, buffer[39])) << 2;
134   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(15447, buffer[39])) << 2;
135   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(6145, buffer[41])) << 3;
136   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(10255, buffer[41])) << 2;
137   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(24211, buffer[55])) >> 1;
138   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(-18233, buffer[55])) >> 3;
139   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(23469, buffer[57])) >> 2;
140   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(9405, buffer[57])) >> 1;
141   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(21223, buffer[71])) >> 8;
142   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(1499, buffer[71])) >> 1;
143   /* 1 - stage 3 */ pcm_a += (MUL_16S_16S(26913, buffer[73])) >> 6;
144   /* 1 - stage 3 */ pcm_b += (MUL_16S_16S(26189, buffer[73])) >> 7;
145   /* 1 - stage 3 */ pcm_a /= 32768;
146   CLIP_INT16(pcm_a);
147   pcm[3 << strideShift] = (int16_t)pcm_a;
148   /* 1 - stage 3 */ pcm_b /= 32768;
149   CLIP_INT16(pcm_b);
150   pcm[5 << strideShift] = (int16_t)pcm_b;
151   /* 1 - stage 4 */ pcm_a = 0;
152   /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(10445, buffer[8])) >> 4;
153   /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(-5297, buffer[24])) << 1;
154   /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(22299, buffer[40])) << 2;
155   /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(10603, buffer[56]));
156   /* 1 - stage 4 */ pcm_a += (MUL_16S_16S(9539, buffer[72])) >> 4;
157   /* 1 - stage 4 */ pcm_a /= 32768;
158   CLIP_INT16(pcm_a);
159   pcm[4 << strideShift] = (int16_t)pcm_a;
160 }
161