apps/codecs/libcook/cookdata_fixpoint.h

   1 /*
   2  * COOK compatible decoder fixed point data types and constants
   3  * Copyright (c) 2007 Ian Braithwaite
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  *
  21  */
  22
  23 /**
  24  * @file cookdata_fixpoint.h
  25  * Cook AKA RealAudio G2 compatible decoder
  26  * fixed point data types and constants
  27  */
  28
  29 #include <stdint.h>
  30 typedef int32_t FIXP;           /* Fixed point variable type */
  31 typedef uint16_t FIXPU;         /* Fixed point fraction 0<=x<1 */
  32
  33 typedef FIXP REAL_T;
  34
  35
  36 /* No additional variables in COOKContext
  37  * for fixed point routines
  38  */
  39 typedef struct {
  40 } realvars_t;
  41
  42
  43 #define cPI1_8 0xec83  /* 1pi/8 2^16 */
  44 #define cPI2_8 0xb505  /* 2pi/8 2^16 */
  45 #define cPI3_8 0x61f8  /* 3pi/8 2^16 */
  46
  47 static const FIXPU sincos_lookup[2050] = {
  48     /* x_i = 2^16 sin(i 2pi/8192), 2^16 cos(i 2pi/8192); i=0..1024 */
  49     0x0000, 0xffff,  0x0032, 0xffff,  0x0065, 0xffff,  0x0097, 0xffff,
  50     0x00c9, 0xffff,  0x00fb, 0xffff,  0x012e, 0xffff,  0x0160, 0xffff,
  51     0x0192, 0xffff,  0x01c4, 0xfffe,  0x01f7, 0xfffe,  0x0229, 0xfffe,
  52     0x025b, 0xfffd,  0x028d, 0xfffd,  0x02c0, 0xfffc,  0x02f2, 0xfffc,
  53     0x0324, 0xfffb,  0x0356, 0xfffa,  0x0389, 0xfffa,  0x03bb, 0xfff9,
  54     0x03ed, 0xfff8,  0x0420, 0xfff7,  0x0452, 0xfff7,  0x0484, 0xfff6,
  55     0x04b6, 0xfff5,  0x04e9, 0xfff4,  0x051b, 0xfff3,  0x054d, 0xfff2,
  56     0x057f, 0xfff1,  0x05b2, 0xfff0,  0x05e4, 0xffef,  0x0616, 0xffed,
  57     0x0648, 0xffec,  0x067b, 0xffeb,  0x06ad, 0xffea,  0x06df, 0xffe8,
  58     0x0711, 0xffe7,  0x0744, 0xffe6,  0x0776, 0xffe4,  0x07a8, 0xffe3,
  59     0x07da, 0xffe1,  0x080d, 0xffe0,  0x083f, 0xffde,  0x0871, 0xffdc,
  60     0x08a3, 0xffdb,  0x08d5, 0xffd9,  0x0908, 0xffd7,  0x093a, 0xffd5,
  61     0x096c, 0xffd4,  0x099e, 0xffd2,  0x09d1, 0xffd0,  0x0a03, 0xffce,
  62     0x0a35, 0xffcc,  0x0a67, 0xffca,  0x0a9a, 0xffc8,  0x0acc, 0xffc6,
  63     0x0afe, 0xffc4,  0x0b30, 0xffc1,  0x0b62, 0xffbf,  0x0b95, 0xffbd,
  64     0x0bc7, 0xffbb,  0x0bf9, 0xffb8,  0x0c2b, 0xffb6,  0x0c5d, 0xffb4,
  65     0x0c90, 0xffb1,  0x0cc2, 0xffaf,  0x0cf4, 0xffac,  0x0d26, 0xffa9,
  66     0x0d59, 0xffa7,  0x0d8b, 0xffa4,  0x0dbd, 0xffa2,  0x0def, 0xff9f,
  67     0x0e21, 0xff9c,  0x0e53, 0xff99,  0x0e86, 0xff96,  0x0eb8, 0xff94,
  68     0x0eea, 0xff91,  0x0f1c, 0xff8e,  0x0f4e, 0xff8b,  0x0f81, 0xff88,
  69     0x0fb3, 0xff85,  0x0fe5, 0xff82,  0x1017, 0xff7e,  0x1049, 0xff7b,
  70     0x107b, 0xff78,  0x10ae, 0xff75,  0x10e0, 0xff71,  0x1112, 0xff6e,
  71     0x1144, 0xff6b,  0x1176, 0xff67,  0x11a8, 0xff64,  0x11da, 0xff60,
  72     0x120d, 0xff5d,  0x123f, 0xff59,  0x1271, 0xff56,  0x12a3, 0xff52,
  73     0x12d5, 0xff4e,  0x1307, 0xff4b,  0x1339, 0xff47,  0x136c, 0xff43,
  74     0x139e, 0xff3f,  0x13d0, 0xff3b,  0x1402, 0xff38,  0x1434, 0xff34,
  75     0x1466, 0xff30,  0x1498, 0xff2c,  0x14ca, 0xff28,  0x14fc, 0xff23,
  76     0x152e, 0xff1f,  0x1561, 0xff1b,  0x1593, 0xff17,  0x15c5, 0xff13,
  77     0x15f7, 0xff0e,  0x1629, 0xff0a,  0x165b, 0xff06,  0x168d, 0xff01,
  78     0x16bf, 0xfefd,  0x16f1, 0xfef8,  0x1723, 0xfef4,  0x1755, 0xfeef,
  79     0x1787, 0xfeeb,  0x17b9, 0xfee6,  0x17eb, 0xfee1,  0x181d, 0xfedd,
  80     0x1850, 0xfed8,  0x1882, 0xfed3,  0x18b4, 0xfece,  0x18e6, 0xfec9,
  81     0x1918, 0xfec4,  0x194a, 0xfebf,  0x197c, 0xfeba,  0x19ae, 0xfeb5,
  82     0x19e0, 0xfeb0,  0x1a12, 0xfeab,  0x1a44, 0xfea6,  0x1a76, 0xfea1,
  83     0x1aa8, 0xfe9c,  0x1ada, 0xfe97,  0x1b0c, 0xfe91,  0x1b3e, 0xfe8c,
  84     0x1b70, 0xfe87,  0x1ba2, 0xfe81,  0x1bd4, 0xfe7c,  0x1c06, 0xfe76,
  85     0x1c38, 0xfe71,  0x1c69, 0xfe6b,  0x1c9b, 0xfe66,  0x1ccd, 0xfe60,
  86     0x1cff, 0xfe5a,  0x1d31, 0xfe55,  0x1d63, 0xfe4f,  0x1d95, 0xfe49,
  87     0x1dc7, 0xfe43,  0x1df9, 0xfe3d,  0x1e2b, 0xfe37,  0x1e5d, 0xfe31,
  88     0x1e8f, 0xfe2b,  0x1ec1, 0xfe25,  0x1ef3, 0xfe1f,  0x1f24, 0xfe19,
  89     0x1f56, 0xfe13,  0x1f88, 0xfe0d,  0x1fba, 0xfe07,  0x1fec, 0xfe01,
  90     0x201e, 0xfdfa,  0x2050, 0xfdf4,  0x2082, 0xfdee,  0x20b3, 0xfde7,
  91     0x20e5, 0xfde1,  0x2117, 0xfdda,  0x2149, 0xfdd4,  0x217b, 0xfdcd,
  92     0x21ad, 0xfdc7,  0x21de, 0xfdc0,  0x2210, 0xfdb9,  0x2242, 0xfdb3,
  93     0x2274, 0xfdac,  0x22a6, 0xfda5,  0x22d7, 0xfd9e,  0x2309, 0xfd97,
  94     0x233b, 0xfd90,  0x236d, 0xfd89,  0x239f, 0xfd83,  0x23d0, 0xfd7c,
  95     0x2402, 0xfd74,  0x2434, 0xfd6d,  0x2466, 0xfd66,  0x2497, 0xfd5f,
  96     0x24c9, 0xfd58,  0x24fb, 0xfd51,  0x252d, 0xfd49,  0x255e, 0xfd42,
  97     0x2590, 0xfd3b,  0x25c2, 0xfd33,  0x25f4, 0xfd2c,  0x2625, 0xfd24,
  98     0x2657, 0xfd1d,  0x2689, 0xfd15,  0x26ba, 0xfd0e,  0x26ec, 0xfd06,
  99     0x271e, 0xfcfe,  0x274f, 0xfcf7,  0x2781, 0xfcef,  0x27b3, 0xfce7,
 100     0x27e4, 0xfcdf,  0x2816, 0xfcd8,  0x2848, 0xfcd0,  0x2879, 0xfcc8,
 101     0x28ab, 0xfcc0,  0x28dd, 0xfcb8,  0x290e, 0xfcb0,  0x2940, 0xfca8,
 102     0x2971, 0xfca0,  0x29a3, 0xfc97,  0x29d5, 0xfc8f,  0x2a06, 0xfc87,
 103     0x2a38, 0xfc7f,  0x2a69, 0xfc76,  0x2a9b, 0xfc6e,  0x2acc, 0xfc66,
 104     0x2afe, 0xfc5d,  0x2b30, 0xfc55,  0x2b61, 0xfc4c,  0x2b93, 0xfc44,
 105     0x2bc4, 0xfc3b,  0x2bf6, 0xfc33,  0x2c27, 0xfc2a,  0x2c59, 0xfc21,
 106     0x2c8a, 0xfc18,  0x2cbc, 0xfc10,  0x2ced, 0xfc07,  0x2d1f, 0xfbfe,
 107     0x2d50, 0xfbf5,  0x2d82, 0xfbec,  0x2db3, 0xfbe3,  0x2de5, 0xfbda,
 108     0x2e16, 0xfbd1,  0x2e47, 0xfbc8,  0x2e79, 0xfbbf,  0x2eaa, 0xfbb6,
 109     0x2edc, 0xfbad,  0x2f0d, 0xfba4,  0x2f3f, 0xfb9a,  0x2f70, 0xfb91,
 110     0x2fa1, 0xfb88,  0x2fd3, 0xfb7e,  0x3004, 0xfb75,  0x3035, 0xfb6b,
 111     0x3067, 0xfb62,  0x3098, 0xfb58,  0x30ca, 0xfb4f,  0x30fb, 0xfb45,
 112     0x312c, 0xfb3c,  0x315e, 0xfb32,  0x318f, 0xfb28,  0x31c0, 0xfb1f,
 113     0x31f1, 0xfb15,  0x3223, 0xfb0b,  0x3254, 0xfb01,  0x3285, 0xfaf7,
 114     0x32b7, 0xfaed,  0x32e8, 0xfae3,  0x3319, 0xfad9,  0x334a, 0xfacf,
 115     0x337c, 0xfac5,  0x33ad, 0xfabb,  0x33de, 0xfab1,  0x340f, 0xfaa7,
 116     0x3440, 0xfa9c,  0x3472, 0xfa92,  0x34a3, 0xfa88,  0x34d4, 0xfa7d,
 117     0x3505, 0xfa73,  0x3536, 0xfa69,  0x3568, 0xfa5e,  0x3599, 0xfa54,
 118     0x35ca, 0xfa49,  0x35fb, 0xfa3e,  0x362c, 0xfa34,  0x365d, 0xfa29,
 119     0x368e, 0xfa1f,  0x36c0, 0xfa14,  0x36f1, 0xfa09,  0x3722, 0xf9fe,
 120     0x3753, 0xf9f3,  0x3784, 0xf9e8,  0x37b5, 0xf9de,  0x37e6, 0xf9d3,
 121     0x3817, 0xf9c8,  0x3848, 0xf9bd,  0x3879, 0xf9b2,  0x38aa, 0xf9a6,
 122     0x38db, 0xf99b,  0x390c, 0xf990,  0x393d, 0xf985,  0x396e, 0xf97a,
 123     0x399f, 0xf96e,  0x39d0, 0xf963,  0x3a01, 0xf958,  0x3a32, 0xf94c,
 124     0x3a63, 0xf941,  0x3a94, 0xf935,  0x3ac5, 0xf92a,  0x3af6, 0xf91e,
 125     0x3b27, 0xf913,  0x3b58, 0xf907,  0x3b88, 0xf8fb,  0x3bb9, 0xf8f0,
 126     0x3bea, 0xf8e4,  0x3c1b, 0xf8d8,  0x3c4c, 0xf8cc,  0x3c7d, 0xf8c0,
 127     0x3cae, 0xf8b4,  0x3cde, 0xf8a9,  0x3d0f, 0xf89d,  0x3d40, 0xf891,
 128     0x3d71, 0xf885,  0x3da2, 0xf878,  0x3dd2, 0xf86c,  0x3e03, 0xf860,
 129     0x3e34, 0xf854,  0x3e65, 0xf848,  0x3e95, 0xf83b,  0x3ec6, 0xf82f,
 130     0x3ef7, 0xf823,  0x3f28, 0xf816,  0x3f58, 0xf80a,  0x3f89, 0xf7fe,
 131     0x3fba, 0xf7f1,  0x3fea, 0xf7e5,  0x401b, 0xf7d8,  0x404c, 0xf7cb,
 132     0x407c, 0xf7bf,  0x40ad, 0xf7b2,  0x40de, 0xf7a5,  0x410e, 0xf799,
 133     0x413f, 0xf78c,  0x416f, 0xf77f,  0x41a0, 0xf772,  0x41d1, 0xf765,
 134     0x4201, 0xf758,  0x4232, 0xf74b,  0x4262, 0xf73e,  0x4293, 0xf731,
 135     0x42c3, 0xf724,  0x42f4, 0xf717,  0x4324, 0xf70a,  0x4355, 0xf6fd,
 136     0x4385, 0xf6ef,  0x43b6, 0xf6e2,  0x43e6, 0xf6d5,  0x4417, 0xf6c7,
 137     0x4447, 0xf6ba,  0x4478, 0xf6ad,  0x44a8, 0xf69f,  0x44d9, 0xf692,
 138     0x4509, 0xf684,  0x4539, 0xf677,  0x456a, 0xf669,  0x459a, 0xf65b,
 139     0x45cb, 0xf64e,  0x45fb, 0xf640,  0x462b, 0xf632,  0x465c, 0xf624,
 140     0x468c, 0xf616,  0x46bc, 0xf609,  0x46ec, 0xf5fb,  0x471d, 0xf5ed,
 141     0x474d, 0xf5df,  0x477d, 0xf5d1,  0x47ae, 0xf5c3,  0x47de, 0xf5b5,
 142     0x480e, 0xf5a6,  0x483e, 0xf598,  0x486f, 0xf58a,  0x489f, 0xf57c,
 143     0x48cf, 0xf56e,  0x48ff, 0xf55f,  0x492f, 0xf551,  0x495f, 0xf543,
 144     0x4990, 0xf534,  0x49c0, 0xf526,  0x49f0, 0xf517,  0x4a20, 0xf509,
 145     0x4a50, 0xf4fa,  0x4a80, 0xf4eb,  0x4ab0, 0xf4dd,  0x4ae0, 0xf4ce,
 146     0x4b10, 0xf4bf,  0x4b40, 0xf4b1,  0x4b71, 0xf4a2,  0x4ba1, 0xf493,
 147     0x4bd1, 0xf484,  0x4c01, 0xf475,  0x4c31, 0xf466,  0x4c61, 0xf457,
 148     0x4c90, 0xf448,  0x4cc0, 0xf439,  0x4cf0, 0xf42a,  0x4d20, 0xf41b,
 149     0x4d50, 0xf40c,  0x4d80, 0xf3fd,  0x4db0, 0xf3ed,  0x4de0, 0xf3de,
 150     0x4e10, 0xf3cf,  0x4e40, 0xf3c0,  0x4e70, 0xf3b0,  0x4e9f, 0xf3a1,
 151     0x4ecf, 0xf391,  0x4eff, 0xf382,  0x4f2f, 0xf372,  0x4f5f, 0xf363,
 152     0x4f8e, 0xf353,  0x4fbe, 0xf343,  0x4fee, 0xf334,  0x501e, 0xf324,
 153     0x504d, 0xf314,  0x507d, 0xf304,  0x50ad, 0xf2f5,  0x50dd, 0xf2e5,
 154     0x510c, 0xf2d5,  0x513c, 0xf2c5,  0x516c, 0xf2b5,  0x519b, 0xf2a5,
 155     0x51cb, 0xf295,  0x51fb, 0xf285,  0x522a, 0xf275,  0x525a, 0xf265,
 156     0x5289, 0xf254,  0x52b9, 0xf244,  0x52e8, 0xf234,  0x5318, 0xf224,
 157     0x5348, 0xf213,  0x5377, 0xf203,  0x53a7, 0xf1f3,  0x53d6, 0xf1e2,
 158     0x5406, 0xf1d2,  0x5435, 0xf1c1,  0x5464, 0xf1b1,  0x5494, 0xf1a0,
 159     0x54c3, 0xf18f,  0x54f3, 0xf17f,  0x5522, 0xf16e,  0x5552, 0xf15d,
 160     0x5581, 0xf14c,  0x55b0, 0xf13c,  0x55e0, 0xf12b,  0x560f, 0xf11a,
 161     0x563e, 0xf109,  0x566e, 0xf0f8,  0x569d, 0xf0e7,  0x56cc, 0xf0d6,
 162     0x56fc, 0xf0c5,  0x572b, 0xf0b4,  0x575a, 0xf0a3,  0x5789, 0xf092,
 163     0x57b9, 0xf080,  0x57e8, 0xf06f,  0x5817, 0xf05e,  0x5846, 0xf04d,
 164     0x5875, 0xf03b,  0x58a5, 0xf02a,  0x58d4, 0xf018,  0x5903, 0xf007,
 165     0x5932, 0xeff5,  0x5961, 0xefe4,  0x5990, 0xefd2,  0x59bf, 0xefc1,
 166     0x59ee, 0xefaf,  0x5a1d, 0xef9d,  0x5a4c, 0xef8c,  0x5a7b, 0xef7a,
 167     0x5aaa, 0xef68,  0x5ad9, 0xef56,  0x5b08, 0xef45,  0x5b37, 0xef33,
 168     0x5b66, 0xef21,  0x5b95, 0xef0f,  0x5bc4, 0xeefd,  0x5bf3, 0xeeeb,
 169     0x5c22, 0xeed9,  0x5c51, 0xeec7,  0x5c80, 0xeeb4,  0x5caf, 0xeea2,
 170     0x5cde, 0xee90,  0x5d0c, 0xee7e,  0x5d3b, 0xee6b,  0x5d6a, 0xee59,
 171     0x5d99, 0xee47,  0x5dc8, 0xee34,  0x5df6, 0xee22,  0x5e25, 0xee0f,
 172     0x5e54, 0xedfd,  0x5e83, 0xedea,  0x5eb1, 0xedd8,  0x5ee0, 0xedc5,
 173     0x5f0f, 0xedb3,  0x5f3d, 0xeda0,  0x5f6c, 0xed8d,  0x5f9b, 0xed7a,
 174     0x5fc9, 0xed68,  0x5ff8, 0xed55,  0x6026, 0xed42,  0x6055, 0xed2f,
 175     0x6084, 0xed1c,  0x60b2, 0xed09,  0x60e1, 0xecf6,  0x610f, 0xece3,
 176     0x613e, 0xecd0,  0x616c, 0xecbd,  0x619b, 0xecaa,  0x61c9, 0xec97,
 177     0x61f8, 0xec83,  0x6226, 0xec70,  0x6254, 0xec5d,  0x6283, 0xec4a,
 178     0x62b1, 0xec36,  0x62e0, 0xec23,  0x630e, 0xec0f,  0x633c, 0xebfc,
 179     0x636b, 0xebe8,  0x6399, 0xebd5,  0x63c7, 0xebc1,  0x63f5, 0xebae,
 180     0x6424, 0xeb9a,  0x6452, 0xeb86,  0x6480, 0xeb73,  0x64ae, 0xeb5f,
 181     0x64dd, 0xeb4b,  0x650b, 0xeb37,  0x6539, 0xeb23,  0x6567, 0xeb0f,
 182     0x6595, 0xeafc,  0x65c3, 0xeae8,  0x65f2, 0xead4,  0x6620, 0xeac0,
 183     0x664e, 0xeaab,  0x667c, 0xea97,  0x66aa, 0xea83,  0x66d8, 0xea6f,
 184     0x6706, 0xea5b,  0x6734, 0xea47,  0x6762, 0xea32,  0x6790, 0xea1e,
 185     0x67be, 0xea0a,  0x67ec, 0xe9f5,  0x681a, 0xe9e1,  0x6848, 0xe9cc,
 186     0x6876, 0xe9b8,  0x68a3, 0xe9a3,  0x68d1, 0xe98f,  0x68ff, 0xe97a,
 187     0x692d, 0xe966,  0x695b, 0xe951,  0x6989, 0xe93c,  0x69b6, 0xe927,
 188     0x69e4, 0xe913,  0x6a12, 0xe8fe,  0x6a40, 0xe8e9,  0x6a6d, 0xe8d4,
 189     0x6a9b, 0xe8bf,  0x6ac9, 0xe8aa,  0x6af6, 0xe895,  0x6b24, 0xe880,
 190     0x6b52, 0xe86b,  0x6b7f, 0xe856,  0x6bad, 0xe841,  0x6bdb, 0xe82c,
 191     0x6c08, 0xe817,  0x6c36, 0xe801,  0x6c63, 0xe7ec,  0x6c91, 0xe7d7,
 192     0x6cbe, 0xe7c2,  0x6cec, 0xe7ac,  0x6d19, 0xe797,  0x6d47, 0xe781,
 193     0x6d74, 0xe76c,  0x6da2, 0xe756,  0x6dcf, 0xe741,  0x6dfc, 0xe72b,
 194     0x6e2a, 0xe716,  0x6e57, 0xe700,  0x6e85, 0xe6ea,  0x6eb2, 0xe6d5,
 195     0x6edf, 0xe6bf,  0x6f0d, 0xe6a9,  0x6f3a, 0xe693,  0x6f67, 0xe67d,
 196     0x6f94, 0xe667,  0x6fc2, 0xe652,  0x6fef, 0xe63c,  0x701c, 0xe626,
 197     0x7049, 0xe610,  0x7076, 0xe5f9,  0x70a3, 0xe5e3,  0x70d1, 0xe5cd,
 198     0x70fe, 0xe5b7,  0x712b, 0xe5a1,  0x7158, 0xe58b,  0x7185, 0xe574,
 199     0x71b2, 0xe55e,  0x71df, 0xe548,  0x720c, 0xe531,  0x7239, 0xe51b,
 200     0x7266, 0xe504,  0x7293, 0xe4ee,  0x72c0, 0xe4d7,  0x72ed, 0xe4c1,
 201     0x731a, 0xe4aa,  0x7347, 0xe494,  0x7373, 0xe47d,  0x73a0, 0xe466,
 202     0x73cd, 0xe450,  0x73fa, 0xe439,  0x7427, 0xe422,  0x7454, 0xe40b,
 203     0x7480, 0xe3f4,  0x74ad, 0xe3de,  0x74da, 0xe3c7,  0x7507, 0xe3b0,
 204     0x7533, 0xe399,  0x7560, 0xe382,  0x758d, 0xe36b,  0x75b9, 0xe353,
 205     0x75e6, 0xe33c,  0x7612, 0xe325,  0x763f, 0xe30e,  0x766c, 0xe2f7,
 206     0x7698, 0xe2df,  0x76c5, 0xe2c8,  0x76f1, 0xe2b1,  0x771e, 0xe299,
 207     0x774a, 0xe282,  0x7777, 0xe26b,  0x77a3, 0xe253,  0x77d0, 0xe23c,
 208     0x77fc, 0xe224,  0x7828, 0xe20d,  0x7855, 0xe1f5,  0x7881, 0xe1dd,
 209     0x78ad, 0xe1c6,  0x78da, 0xe1ae,  0x7906, 0xe196,  0x7932, 0xe17e,
 210     0x795f, 0xe167,  0x798b, 0xe14f,  0x79b7, 0xe137,  0x79e3, 0xe11f,
 211     0x7a10, 0xe107,  0x7a3c, 0xe0ef,  0x7a68, 0xe0d7,  0x7a94, 0xe0bf,
 212     0x7ac0, 0xe0a7,  0x7aec, 0xe08f,  0x7b18, 0xe077,  0x7b44, 0xe05e,
 213     0x7b70, 0xe046,  0x7b9c, 0xe02e,  0x7bc8, 0xe016,  0x7bf4, 0xdffd,
 214     0x7c20, 0xdfe5,  0x7c4c, 0xdfcd,  0x7c78, 0xdfb4,  0x7ca4, 0xdf9c,
 215     0x7cd0, 0xdf83,  0x7cfc, 0xdf6b,  0x7d28, 0xdf52,  0x7d54, 0xdf39,
 216     0x7d7f, 0xdf21,  0x7dab, 0xdf08,  0x7dd7, 0xdef0,  0x7e03, 0xded7,
 217     0x7e2f, 0xdebe,  0x7e5a, 0xdea5,  0x7e86, 0xde8c,  0x7eb2, 0xde74,
 218     0x7edd, 0xde5b,  0x7f09, 0xde42,  0x7f35, 0xde29,  0x7f60, 0xde10,
 219     0x7f8c, 0xddf7,  0x7fb7, 0xddde,  0x7fe3, 0xddc5,  0x800f, 0xddab,
 220     0x803a, 0xdd92,  0x8066, 0xdd79,  0x8091, 0xdd60,  0x80bc, 0xdd47,
 221     0x80e8, 0xdd2d,  0x8113, 0xdd14,  0x813f, 0xdcfb,  0x816a, 0xdce1,
 222     0x8195, 0xdcc8,  0x81c1, 0xdcae,  0x81ec, 0xdc95,  0x8217, 0xdc7b,
 223     0x8243, 0xdc62,  0x826e, 0xdc48,  0x8299, 0xdc2f,  0x82c4, 0xdc15,
 224     0x82f0, 0xdbfb,  0x831b, 0xdbe1,  0x8346, 0xdbc8,  0x8371, 0xdbae,
 225     0x839c, 0xdb94,  0x83c7, 0xdb7a,  0x83f2, 0xdb60,  0x841d, 0xdb46,
 226     0x8449, 0xdb2c,  0x8474, 0xdb12,  0x849f, 0xdaf8,  0x84ca, 0xdade,
 227     0x84f5, 0xdac4,  0x851f, 0xdaaa,  0x854a, 0xda90,  0x8575, 0xda76,
 228     0x85a0, 0xda5c,  0x85cb, 0xda41,  0x85f6, 0xda27,  0x8621, 0xda0d,
 229     0x864c, 0xd9f2,  0x8676, 0xd9d8,  0x86a1, 0xd9be,  0x86cc, 0xd9a3,
 230     0x86f7, 0xd989,  0x8721, 0xd96e,  0x874c, 0xd954,  0x8777, 0xd939,
 231     0x87a1, 0xd91e,  0x87cc, 0xd904,  0x87f6, 0xd8e9,  0x8821, 0xd8ce,
 232     0x884c, 0xd8b4,  0x8876, 0xd899,  0x88a1, 0xd87e,  0x88cb, 0xd863,
 233     0x88f6, 0xd848,  0x8920, 0xd82d,  0x894a, 0xd812,  0x8975, 0xd7f8,
 234     0x899f, 0xd7dc,  0x89ca, 0xd7c1,  0x89f4, 0xd7a6,  0x8a1e, 0xd78b,
 235     0x8a49, 0xd770,  0x8a73, 0xd755,  0x8a9d, 0xd73a,  0x8ac7, 0xd71f,
 236     0x8af2, 0xd703,  0x8b1c, 0xd6e8,  0x8b46, 0xd6cd,  0x8b70, 0xd6b1,
 237     0x8b9a, 0xd696,  0x8bc5, 0xd67a,  0x8bef, 0xd65f,  0x8c19, 0xd644,
 238     0x8c43, 0xd628,  0x8c6d, 0xd60c,  0x8c97, 0xd5f1,  0x8cc1, 0xd5d5,
 239     0x8ceb, 0xd5ba,  0x8d15, 0xd59e,  0x8d3f, 0xd582,  0x8d69, 0xd566,
 240     0x8d93, 0xd54b,  0x8dbc, 0xd52f,  0x8de6, 0xd513,  0x8e10, 0xd4f7,
 241     0x8e3a, 0xd4db,  0x8e64, 0xd4bf,  0x8e8d, 0xd4a3,  0x8eb7, 0xd487,
 242     0x8ee1, 0xd46b,  0x8f0b, 0xd44f,  0x8f34, 0xd433,  0x8f5e, 0xd417,
 243     0x8f88, 0xd3fb,  0x8fb1, 0xd3df,  0x8fdb, 0xd3c2,  0x9004, 0xd3a6,
 244     0x902e, 0xd38a,  0x9057, 0xd36d,  0x9081, 0xd351,  0x90aa, 0xd335,
 245     0x90d4, 0xd318,  0x90fd, 0xd2fc,  0x9127, 0xd2df,  0x9150, 0xd2c3,
 246     0x9179, 0xd2a6,  0x91a3, 0xd28a,  0x91cc, 0xd26d,  0x91f5, 0xd250,
 247     0x921f, 0xd234,  0x9248, 0xd217,  0x9271, 0xd1fa,  0x929a, 0xd1de,
 248     0x92c4, 0xd1c1,  0x92ed, 0xd1a4,  0x9316, 0xd187,  0x933f, 0xd16a,
 249     0x9368, 0xd14d,  0x9391, 0xd130,  0x93ba, 0xd113,  0x93e3, 0xd0f6,
 250     0x940c, 0xd0d9,  0x9435, 0xd0bc,  0x945e, 0xd09f,  0x9487, 0xd082,
 251     0x94b0, 0xd065,  0x94d9, 0xd047,  0x9502, 0xd02a,  0x952b, 0xd00d,
 252     0x9554, 0xcff0,  0x957d, 0xcfd2,  0x95a5, 0xcfb5,  0x95ce, 0xcf98,
 253     0x95f7, 0xcf7a,  0x9620, 0xcf5d,  0x9648, 0xcf3f,  0x9671, 0xcf22,
 254     0x969a, 0xcf04,  0x96c2, 0xcee7,  0x96eb, 0xcec9,  0x9713, 0xceab,
 255     0x973c, 0xce8e,  0x9765, 0xce70,  0x978d, 0xce52,  0x97b6, 0xce34,
 256     0x97de, 0xce17,  0x9807, 0xcdf9,  0x982f, 0xcddb,  0x9857, 0xcdbd,
 257     0x9880, 0xcd9f,  0x98a8, 0xcd81,  0x98d0, 0xcd63,  0x98f9, 0xcd45,
 258     0x9921, 0xcd27,  0x9949, 0xcd09,  0x9972, 0xcceb,  0x999a, 0xcccd,
 259     0x99c2, 0xccae,  0x99ea, 0xcc90,  0x9a12, 0xcc72,  0x9a3a, 0xcc54,
 260     0x9a63, 0xcc35,  0x9a8b, 0xcc17,  0x9ab3, 0xcbf9,  0x9adb, 0xcbda,
 261     0x9b03, 0xcbbc,  0x9b2b, 0xcb9e,  0x9b53, 0xcb7f,  0x9b7b, 0xcb61,
 262     0x9ba3, 0xcb42,  0x9bca, 0xcb23,  0x9bf2, 0xcb05,  0x9c1a, 0xcae6,
 263     0x9c42, 0xcac7,  0x9c6a, 0xcaa9,  0x9c92, 0xca8a,  0x9cb9, 0xca6b,
 264     0x9ce1, 0xca4d,  0x9d09, 0xca2e,  0x9d31, 0xca0f,  0x9d58, 0xc9f0,
 265     0x9d80, 0xc9d1,  0x9da7, 0xc9b2,  0x9dcf, 0xc993,  0x9df7, 0xc974,
 266     0x9e1e, 0xc955,  0x9e46, 0xc936,  0x9e6d, 0xc917,  0x9e95, 0xc8f8,
 267     0x9ebc, 0xc8d9,  0x9ee3, 0xc8ba,  0x9f0b, 0xc89a,  0x9f32, 0xc87b,
 268     0x9f5a, 0xc85c,  0x9f81, 0xc83c,  0x9fa8, 0xc81d,  0x9fd0, 0xc7fe,
 269     0x9ff7, 0xc7de,  0xa01e, 0xc7bf,  0xa045, 0xc7a0,  0xa06c, 0xc780,
 270     0xa094, 0xc761,  0xa0bb, 0xc741,  0xa0e2, 0xc721,  0xa109, 0xc702,
 271     0xa130, 0xc6e2,  0xa157, 0xc6c2,  0xa17e, 0xc6a3,  0xa1a5, 0xc683,
 272     0xa1cc, 0xc663,  0xa1f3, 0xc644,  0xa21a, 0xc624,  0xa241, 0xc604,
 273     0xa268, 0xc5e4,  0xa28e, 0xc5c4,  0xa2b5, 0xc5a4,  0xa2dc, 0xc584,
 274     0xa303, 0xc564,  0xa32a, 0xc544,  0xa350, 0xc524,  0xa377, 0xc504,
 275     0xa39e, 0xc4e4,  0xa3c4, 0xc4c4,  0xa3eb, 0xc4a4,  0xa412, 0xc483,
 276     0xa438, 0xc463,  0xa45f, 0xc443,  0xa485, 0xc423,  0xa4ac, 0xc402,
 277     0xa4d2, 0xc3e2,  0xa4f9, 0xc3c2,  0xa51f, 0xc3a1,  0xa545, 0xc381,
 278     0xa56c, 0xc360,  0xa592, 0xc340,  0xa5b8, 0xc31f,  0xa5df, 0xc2ff,
 279     0xa605, 0xc2de,  0xa62b, 0xc2be,  0xa652, 0xc29d,  0xa678, 0xc27c,
 280     0xa69e, 0xc25c,  0xa6c4, 0xc23b,  0xa6ea, 0xc21a,  0xa710, 0xc1f9,
 281     0xa736, 0xc1d8,  0xa75c, 0xc1b8,  0xa782, 0xc197,  0xa7a8, 0xc176,
 282     0xa7ce, 0xc155,  0xa7f4, 0xc134,  0xa81a, 0xc113,  0xa840, 0xc0f2,
 283     0xa866, 0xc0d1,  0xa88c, 0xc0b0,  0xa8b2, 0xc08f,  0xa8d7, 0xc06e,
 284     0xa8fd, 0xc04c,  0xa923, 0xc02b,  0xa949, 0xc00a,  0xa96e, 0xbfe9,
 285     0xa994, 0xbfc7,  0xa9ba, 0xbfa6,  0xa9df, 0xbf85,  0xaa05, 0xbf63,
 286     0xaa2a, 0xbf42,  0xaa50, 0xbf21,  0xaa76, 0xbeff,  0xaa9b, 0xbede,
 287     0xaac1, 0xbebc,  0xaae6, 0xbe9b,  0xab0b, 0xbe79,  0xab31, 0xbe57,
 288     0xab56, 0xbe36,  0xab7b, 0xbe14,  0xaba1, 0xbdf2,  0xabc6, 0xbdd1,
 289     0xabeb, 0xbdaf,  0xac11, 0xbd8d,  0xac36, 0xbd6b,  0xac5b, 0xbd4a,
 290     0xac80, 0xbd28,  0xaca5, 0xbd06,  0xacca, 0xbce4,  0xacef, 0xbcc2,
 291     0xad14, 0xbca0,  0xad39, 0xbc7e,  0xad5e, 0xbc5c,  0xad83, 0xbc3a,
 292     0xada8, 0xbc18,  0xadcd, 0xbbf6,  0xadf2, 0xbbd4,  0xae17, 0xbbb1,
 293     0xae3c, 0xbb8f,  0xae61, 0xbb6d,  0xae85, 0xbb4b,  0xaeaa, 0xbb28,
 294     0xaecf, 0xbb06,  0xaef4, 0xbae4,  0xaf18, 0xbac1,  0xaf3d, 0xba9f,
 295     0xaf62, 0xba7d,  0xaf86, 0xba5a,  0xafab, 0xba38,  0xafcf, 0xba15,
 296     0xaff4, 0xb9f3,  0xb018, 0xb9d0,  0xb03d, 0xb9ae,  0xb061, 0xb98b,
 297     0xb086, 0xb968,  0xb0aa, 0xb946,  0xb0ce, 0xb923,  0xb0f3, 0xb900,
 298     0xb117, 0xb8dd,  0xb13b, 0xb8bb,  0xb160, 0xb898,  0xb184, 0xb875,
 299     0xb1a8, 0xb852,  0xb1cc, 0xb82f,  0xb1f0, 0xb80c,  0xb215, 0xb7e9,
 300     0xb239, 0xb7c6,  0xb25d, 0xb7a3,  0xb281, 0xb780,  0xb2a5, 0xb75d,
 301     0xb2c9, 0xb73a,  0xb2ed, 0xb717,  0xb311, 0xb6f4,  0xb335, 0xb6d1,
 302     0xb358, 0xb6ad,  0xb37c, 0xb68a,  0xb3a0, 0xb667,  0xb3c4, 0xb644,
 303     0xb3e8, 0xb620,  0xb40b, 0xb5fd,  0xb42f, 0xb5da,  0xb453, 0xb5b6,
 304     0xb477, 0xb593,  0xb49a, 0xb56f,  0xb4be, 0xb54c,  0xb4e1, 0xb528,
 305     0xb505, 0xb505
 306 };
 307
 308 static const FIXPU pow128_tab[128] = {
 309     /* x_i = 2^(15+i/128) */
 310     0x8000, 0x80b2, 0x8165, 0x8219, 0x82ce, 0x8383, 0x843a, 0x84f2, 0x85ab,
 311     0x8665, 0x871f, 0x87db, 0x8898, 0x8956, 0x8a15, 0x8ad5, 0x8b96, 0x8c58,
 312     0x8d1b, 0x8ddf, 0x8ea4, 0x8f6b, 0x9032, 0x90fa, 0x91c4, 0x928e, 0x935a,
 313     0x9427, 0x94f5, 0x95c4, 0x9694, 0x9765, 0x9838, 0x990c, 0x99e0, 0x9ab6,
 314     0x9b8d, 0x9c65, 0x9d3f, 0x9e19, 0x9ef5, 0x9fd2, 0xa0b0, 0xa190, 0xa270,
 315     0xa352, 0xa435, 0xa519, 0xa5ff, 0xa6e6, 0xa7ce, 0xa8b7, 0xa9a1, 0xaa8d,
 316     0xab7a, 0xac69, 0xad58, 0xae49, 0xaf3b, 0xb02f, 0xb124, 0xb21a, 0xb312,
 317     0xb40b, 0xb505, 0xb601, 0xb6fe, 0xb7fc, 0xb8fc, 0xb9fd, 0xbaff, 0xbc03,
 318     0xbd09, 0xbe0f, 0xbf18, 0xc021, 0xc12c, 0xc239, 0xc347, 0xc456, 0xc567,
 319     0xc67a, 0xc78d, 0xc8a3, 0xc9ba, 0xcad2, 0xcbec, 0xcd08, 0xce25, 0xcf43,
 320     0xd063, 0xd185, 0xd2a8, 0xd3cd, 0xd4f3, 0xd61b, 0xd745, 0xd870, 0xd99d,
 321     0xdacc, 0xdbfc, 0xdd2e, 0xde61, 0xdf96, 0xe0cd, 0xe205, 0xe340, 0xe47b,
 322     0xe5b9, 0xe6f8, 0xe839, 0xe97c, 0xeac1, 0xec07, 0xed4f, 0xee99, 0xefe5,
 323     0xf132, 0xf281, 0xf3d3, 0xf525, 0xf67a, 0xf7d1, 0xf929, 0xfa84, 0xfbe0,
 324     0xfd3e, 0xfe9e
 325 };
 326
 327
 328 /* dither_table and quant_centroid_table.
 329  * Index 1: [0] - scaled by 2^13, [1] - scaled by 2^13 / sqrt(2)
 330  * Index 2: [0..7] - category
 331  * Index 3: [0] - dither_table, [1..13] - quant_centroid_table
 332  */
 333 static const FIXP quant_tables[2][8][14] = {{{
 334     0x00000000, 0x0645a1cb, 0x0c2d0e56, 0x11eb851f, 0x17a1cac1, 0x1d4fdf3b,
 335     0x22ed9168, 0x28a7ef9e, 0x2e49ba5e, 0x33eb851f, 0x39916873, 0x3f126e98,
 336     0x449ba5e3, 0x4b958106
 337 },{
 338     0x00000000, 0x08b43958, 0x10f5c28f, 0x19020c4a, 0x2116872b, 0x2922d0e5,
 339     0x3126e979, 0x38fdf3b6, 0x411eb852, 0x49eb851f, 0x00000000, 0x00000000,
 340     0x00000000, 0x00000000
 341 },{
 342     0x00000000, 0x0bef9db2, 0x176c8b44, 0x22e147ae, 0x2e1cac08, 0x39581062,
 343     0x450e5604, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 344     0x00000000, 0x00000000
 345 },{
 346     0x00000000, 0x10189375, 0x20000000, 0x2fe353f8, 0x3fc28f5c, 0x00000000,
 347     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 348     0x00000000, 0x00000000
 349 },{
 350     0x00000000, 0x1522d0e5, 0x2b3f7cee, 0x3fba5e35, 0x00000000, 0x00000000,
 351     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 352     0x00000000, 0x00000000
 353 },{
 354     0x02d413cd, 0x1a83126f, 0x37db22d1, 0x00000000, 0x00000000, 0x00000000,
 355     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 356     0x00000000, 0x00000000
 357 },{
 358     0x04000000, 0x1f6c8b44, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 359     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 360     0x00000000, 0x00000000
 361 },{
 362     0x0b504f33, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 363     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 364     0x00000000, 0x00000000
 365 }},{{
 366     0x00000000, 0x046f5a70, 0x089c1768, 0x0cabddd3, 0x10b5d955, 0x14ba09ed,
 367     0x18b2a4b4, 0x1cbf85aa, 0x20bb05e5, 0x24b68620, 0x28b4ebcf, 0x2c994066,
 368     0x30835fe6, 0x35722a5e
 369 },{
 370     0x00000000, 0x062797a1, 0x0bfe1683, 0x11aeee7a, 0x1765915b, 0x1d166952,
 371     0x22c17660, 0x284ca76c, 0x2e0bfaaa, 0x3444f306, 0x00000000, 0x00000000,
 372     0x00000000, 0x00000000
 373 },{
 374     0x00000000, 0x0870a594, 0x1090326a, 0x18a9f456, 0x209b29e3, 0x288c5f70,
 375     0x30d478a5, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 376     0x00000000, 0x00000000
 377 },{
 378     0x00000000, 0x0b61afee, 0x16a09e66, 0x21dca76a, 0x2d15caf9, 0x00000000,
 379     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 380     0x00000000, 0x00000000
 381 },{
 382     0x00000000, 0x0ef20652, 0x1e94b968, 0x2d100010, 0x00000000, 0x00000000,
 383     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 384     0x00000000, 0x00000000
 385 },{
 386     0x02000000, 0x12bf2f44, 0x277f041b, 0x00000000, 0x00000000, 0x00000000,
 387     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 388     0x00000000, 0x00000000
 389 },{
 390     0x02d413cd, 0x16385a03, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 391     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 392     0x00000000, 0x00000000
 393 },{
 394     0x08000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 395     0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 396     0x00000000, 0x00000000
 397 }}};
 398
 399 static const FIXPU cplscale2[3] = {
 400     /* 2^16 C_ij */
 401     0xf3f9, 0xb505, 0x4d8b
 402 };
 403 static const FIXPU cplscale3[7] = {
 404     /* 2^16 C_ij */
 405     0xfb35, 0xefdf, 0xe03d, 0xb505, 0x7b81, 0x596e, 0x314d
 406 };
 407 static const FIXPU cplscale4[15] = {
 408     /* 2^16 C_ij */
 409     0xfdd2, 0xf927, 0xf3f9, 0xee1d, 0xe749, 0xdee9, 0xd381, 0xb505, 0x903b,
 410     0x7de2, 0x6dbe, 0x5e02, 0x4d8b, 0x3ad1, 0x2155
 411 };
 412 static const FIXPU cplscale5[31] = {
 413     /* 2^16 C_ij */
 414     0xfef5, 0xfcce, 0xfa8e, 0xf832, 0xf5b5, 0xf314, 0xf049, 0xed4c, 0xea12,
 415     0xe68e, 0xe2ab, 0xde4b, 0xd938, 0xd30b, 0xcab6, 0xb505, 0x9c59, 0x90e8,
 416     0x8778, 0x7ef9, 0x76fc, 0x6f45, 0x67ab, 0x600e, 0x5850, 0x504d, 0x47db,
 417     0x3ebd, 0x3486, 0x2853, 0x1715
 418 };
 419 static const FIXPU cplscale6[63] = {
 420     /* 2^16 C_ij */
 421     0xff7d, 0xfe74, 0xfd65, 0xfc50, 0xfb35, 0xfa14, 0xf8eb, 0xf7bb, 0xf683,
 422     0xf543, 0xf3f9, 0xf2a6, 0xf148, 0xefdf, 0xee6a, 0xece6, 0xeb54, 0xe9b2,
 423     0xe7fd, 0xe634, 0xe453, 0xe258, 0xe03d, 0xddff, 0xdb94, 0xd8f4, 0xd610,
 424     0xd2d2, 0xcf13, 0xca8c, 0xc47c, 0xb505, 0xa41a, 0x9c90, 0x9685, 0x913a,
 425     0x8c67, 0x87e5, 0x839c, 0x7f7e, 0x7b81, 0x779b, 0x73c7, 0x6fff, 0x6c3f,
 426     0x6883, 0x64c7, 0x6107, 0x5d40, 0x596e, 0x558d, 0x5198, 0x4d8b, 0x495f,
 427     0x450d, 0x408b, 0x3bcd, 0x36c1, 0x314d, 0x2b4a, 0x246e, 0x1c1a, 0x1029
 428 };
 429