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author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 01 Feb 2014 19:58:19 +0200
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1 /********************************************************************
2 * *
3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
7 * *
8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
9 * by the Xiph.Org Foundation http://www.xiph.org/ *
10 * *
11 ********************************************************************
12
13 function: lookup data; generated by lookups.pl; edit there
14 last mod: $Id: lookup_data.h 16037 2009-05-26 21:10:58Z xiphmont $
15
16 ********************************************************************/
17
18 #ifndef _V_LOOKUP_DATA_H_
19
20 #ifdef FLOAT_LOOKUP
21 #define COS_LOOKUP_SZ 128
22 static const float COS_LOOKUP[COS_LOOKUP_SZ+1]={
23 +1.0000000000000f,+0.9996988186962f,+0.9987954562052f,+0.9972904566787f,
24 +0.9951847266722f,+0.9924795345987f,+0.9891765099648f,+0.9852776423889f,
25 +0.9807852804032f,+0.9757021300385f,+0.9700312531945f,+0.9637760657954f,
26 +0.9569403357322f,+0.9495281805930f,+0.9415440651830f,+0.9329927988347f,
27 +0.9238795325113f,+0.9142097557035f,+0.9039892931234f,+0.8932243011955f,
28 +0.8819212643484f,+0.8700869911087f,+0.8577286100003f,+0.8448535652497f,
29 +0.8314696123025f,+0.8175848131516f,+0.8032075314806f,+0.7883464276266f,
30 +0.7730104533627f,+0.7572088465065f,+0.7409511253550f,+0.7242470829515f,
31 +0.7071067811865f,+0.6895405447371f,+0.6715589548470f,+0.6531728429538f,
32 +0.6343932841636f,+0.6152315905806f,+0.5956993044924f,+0.5758081914178f,
33 +0.5555702330196f,+0.5349976198871f,+0.5141027441932f,+0.4928981922298f,
34 +0.4713967368260f,+0.4496113296546f,+0.4275550934303f,+0.4052413140050f,
35 +0.3826834323651f,+0.3598950365350f,+0.3368898533922f,+0.3136817403989f,
36 +0.2902846772545f,+0.2667127574749f,+0.2429801799033f,+0.2191012401569f,
37 +0.1950903220161f,+0.1709618887603f,+0.1467304744554f,+0.1224106751992f,
38 +0.0980171403296f,+0.0735645635997f,+0.0490676743274f,+0.0245412285229f,
39 +0.0000000000000f,-0.0245412285229f,-0.0490676743274f,-0.0735645635997f,
40 -0.0980171403296f,-0.1224106751992f,-0.1467304744554f,-0.1709618887603f,
41 -0.1950903220161f,-0.2191012401569f,-0.2429801799033f,-0.2667127574749f,
42 -0.2902846772545f,-0.3136817403989f,-0.3368898533922f,-0.3598950365350f,
43 -0.3826834323651f,-0.4052413140050f,-0.4275550934303f,-0.4496113296546f,
44 -0.4713967368260f,-0.4928981922298f,-0.5141027441932f,-0.5349976198871f,
45 -0.5555702330196f,-0.5758081914178f,-0.5956993044924f,-0.6152315905806f,
46 -0.6343932841636f,-0.6531728429538f,-0.6715589548470f,-0.6895405447371f,
47 -0.7071067811865f,-0.7242470829515f,-0.7409511253550f,-0.7572088465065f,
48 -0.7730104533627f,-0.7883464276266f,-0.8032075314806f,-0.8175848131516f,
49 -0.8314696123025f,-0.8448535652497f,-0.8577286100003f,-0.8700869911087f,
50 -0.8819212643484f,-0.8932243011955f,-0.9039892931234f,-0.9142097557035f,
51 -0.9238795325113f,-0.9329927988347f,-0.9415440651830f,-0.9495281805930f,
52 -0.9569403357322f,-0.9637760657954f,-0.9700312531945f,-0.9757021300385f,
53 -0.9807852804032f,-0.9852776423889f,-0.9891765099648f,-0.9924795345987f,
54 -0.9951847266722f,-0.9972904566787f,-0.9987954562052f,-0.9996988186962f,
55 -1.0000000000000f,
56 };
57
58 #define INVSQ_LOOKUP_SZ 32
59 static const float INVSQ_LOOKUP[INVSQ_LOOKUP_SZ+1]={
60 1.414213562373f,1.392621247646f,1.371988681140f,1.352246807566f,
61 1.333333333333f,1.315191898443f,1.297771369046f,1.281025230441f,
62 1.264911064067f,1.249390095109f,1.234426799697f,1.219988562661f,
63 1.206045378311f,1.192569588000f,1.179535649239f,1.166919931983f,
64 1.154700538379f,1.142857142857f,1.131370849898f,1.120224067222f,
65 1.109400392450f,1.098884511590f,1.088662107904f,1.078719779941f,
66 1.069044967650f,1.059625885652f,1.050451462878f,1.041511287847f,
67 1.032795558989f,1.024295039463f,1.016001016002f,1.007905261358f,
68 1.000000000000f,
69 };
70
71 #define INVSQ2EXP_LOOKUP_MIN (-32)
72 #define INVSQ2EXP_LOOKUP_MAX 32
73 static const float INVSQ2EXP_LOOKUP[INVSQ2EXP_LOOKUP_MAX-\
74 INVSQ2EXP_LOOKUP_MIN+1]={
75 65536.f, 46340.95001f, 32768.f, 23170.47501f,
76 16384.f, 11585.2375f, 8192.f, 5792.618751f,
77 4096.f, 2896.309376f, 2048.f, 1448.154688f,
78 1024.f, 724.0773439f, 512.f, 362.038672f,
79 256.f, 181.019336f, 128.f, 90.50966799f,
80 64.f, 45.254834f, 32.f, 22.627417f,
81 16.f, 11.3137085f, 8.f, 5.656854249f,
82 4.f, 2.828427125f, 2.f, 1.414213562f,
83 1.f, 0.7071067812f, 0.5f, 0.3535533906f,
84 0.25f, 0.1767766953f, 0.125f, 0.08838834765f,
85 0.0625f, 0.04419417382f, 0.03125f, 0.02209708691f,
86 0.015625f, 0.01104854346f, 0.0078125f, 0.005524271728f,
87 0.00390625f, 0.002762135864f, 0.001953125f, 0.001381067932f,
88 0.0009765625f, 0.000690533966f, 0.00048828125f, 0.000345266983f,
89 0.000244140625f,0.0001726334915f,0.0001220703125f,8.631674575e-05f,
90 6.103515625e-05f,4.315837288e-05f,3.051757812e-05f,2.157918644e-05f,
91 1.525878906e-05f,
92 };
93
94 #endif
95
96 #define FROMdB_LOOKUP_SZ 35
97 #define FROMdB2_LOOKUP_SZ 32
98 #define FROMdB_SHIFT 5
99 #define FROMdB2_SHIFT 3
100 #define FROMdB2_MASK 31
101
102 #ifdef FLOAT_LOOKUP
103 static const float FROMdB_LOOKUP[FROMdB_LOOKUP_SZ]={
104 1.f, 0.6309573445f, 0.3981071706f, 0.2511886432f,
105 0.1584893192f, 0.1f, 0.06309573445f, 0.03981071706f,
106 0.02511886432f, 0.01584893192f, 0.01f, 0.006309573445f,
107 0.003981071706f, 0.002511886432f, 0.001584893192f, 0.001f,
108 0.0006309573445f,0.0003981071706f,0.0002511886432f,0.0001584893192f,
109 0.0001f,6.309573445e-05f,3.981071706e-05f,2.511886432e-05f,
110 1.584893192e-05f, 1e-05f,6.309573445e-06f,3.981071706e-06f,
111 2.511886432e-06f,1.584893192e-06f, 1e-06f,6.309573445e-07f,
112 3.981071706e-07f,2.511886432e-07f,1.584893192e-07f,
113 };
114
115 static const float FROMdB2_LOOKUP[FROMdB2_LOOKUP_SZ]={
116 0.9928302478f, 0.9786445908f, 0.9646616199f, 0.9508784391f,
117 0.9372921937f, 0.92390007f, 0.9106992942f, 0.8976871324f,
118 0.8848608897f, 0.8722179097f, 0.8597555737f, 0.8474713009f,
119 0.835362547f, 0.8234268041f, 0.8116616003f, 0.8000644989f,
120 0.7886330981f, 0.7773650302f, 0.7662579617f, 0.755309592f,
121 0.7445176537f, 0.7338799116f, 0.7233941627f, 0.7130582353f,
122 0.7028699885f, 0.6928273125f, 0.6829281272f, 0.6731703824f,
123 0.6635520573f, 0.6540711597f, 0.6447257262f, 0.6355138211f,
124 };
125 #endif
126
127 #ifdef INT_LOOKUP
128
129 #define INVSQ_LOOKUP_I_SHIFT 10
130 #define INVSQ_LOOKUP_I_MASK 1023
131 static const long INVSQ_LOOKUP_I[64+1]={
132 92682l, 91966l, 91267l, 90583l,
133 89915l, 89261l, 88621l, 87995l,
134 87381l, 86781l, 86192l, 85616l,
135 85051l, 84497l, 83953l, 83420l,
136 82897l, 82384l, 81880l, 81385l,
137 80899l, 80422l, 79953l, 79492l,
138 79039l, 78594l, 78156l, 77726l,
139 77302l, 76885l, 76475l, 76072l,
140 75674l, 75283l, 74898l, 74519l,
141 74146l, 73778l, 73415l, 73058l,
142 72706l, 72359l, 72016l, 71679l,
143 71347l, 71019l, 70695l, 70376l,
144 70061l, 69750l, 69444l, 69141l,
145 68842l, 68548l, 68256l, 67969l,
146 67685l, 67405l, 67128l, 66855l,
147 66585l, 66318l, 66054l, 65794l,
148 65536l,
149 };
150
151 #define COS_LOOKUP_I_SHIFT 9
152 #define COS_LOOKUP_I_MASK 511
153 #define COS_LOOKUP_I_SZ 128
154 static const long COS_LOOKUP_I[COS_LOOKUP_I_SZ+1]={
155 16384l, 16379l, 16364l, 16340l,
156 16305l, 16261l, 16207l, 16143l,
157 16069l, 15986l, 15893l, 15791l,
158 15679l, 15557l, 15426l, 15286l,
159 15137l, 14978l, 14811l, 14635l,
160 14449l, 14256l, 14053l, 13842l,
161 13623l, 13395l, 13160l, 12916l,
162 12665l, 12406l, 12140l, 11866l,
163 11585l, 11297l, 11003l, 10702l,
164 10394l, 10080l, 9760l, 9434l,
165 9102l, 8765l, 8423l, 8076l,
166 7723l, 7366l, 7005l, 6639l,
167 6270l, 5897l, 5520l, 5139l,
168 4756l, 4370l, 3981l, 3590l,
169 3196l, 2801l, 2404l, 2006l,
170 1606l, 1205l, 804l, 402l,
171 0l, -401l, -803l, -1204l,
172 -1605l, -2005l, -2403l, -2800l,
173 -3195l, -3589l, -3980l, -4369l,
174 -4755l, -5138l, -5519l, -5896l,
175 -6269l, -6638l, -7004l, -7365l,
176 -7722l, -8075l, -8422l, -8764l,
177 -9101l, -9433l, -9759l, -10079l,
178 -10393l, -10701l, -11002l, -11296l,
179 -11584l, -11865l, -12139l, -12405l,
180 -12664l, -12915l, -13159l, -13394l,
181 -13622l, -13841l, -14052l, -14255l,
182 -14448l, -14634l, -14810l, -14977l,
183 -15136l, -15285l, -15425l, -15556l,
184 -15678l, -15790l, -15892l, -15985l,
185 -16068l, -16142l, -16206l, -16260l,
186 -16304l, -16339l, -16363l, -16378l,
187 -16383l,
188 };
189
190 #endif
191
192 #endif