lib/lookup_data.h

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