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65 lines
4.9 KiB
65 lines
4.9 KiB
3 months ago
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/*
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* Image Library -- Math routines
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*
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* (c) 2006 Pavel Charvat <pchar@ucw.cz>
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*
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* This software may be freely distributed and used according to the terms
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* of the GNU General Public License.
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*/
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#include <ucw/lib.h>
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#include <images/math.h>
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const u32 fast_div_tab[] = {
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0, 4294967295U,2147483648U,1431655766, 1073741824, 858993460, 715827883, 613566757,
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536870912, 477218589, 429496730, 390451573, 357913942, 330382100, 306783379, 286331154,
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268435456, 252645136, 238609295, 226050911, 214748365, 204522253, 195225787, 186737709,
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178956971, 171798692, 165191050, 159072863, 153391690, 148102321, 143165577, 138547333,
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134217728, 130150525, 126322568, 122713352, 119304648, 116080198, 113025456, 110127367,
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107374183, 104755300, 102261127, 99882961, 97612894, 95443718, 93368855, 91382283,
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89478486, 87652394, 85899346, 84215046, 82595525, 81037119, 79536432, 78090315,
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76695845, 75350304, 74051161, 72796056, 71582789, 70409300, 69273667, 68174085,
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67108864, 66076420, 65075263, 64103990, 63161284, 62245903, 61356676, 60492498,
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59652324, 58835169, 58040099, 57266231, 56512728, 55778797, 55063684, 54366675,
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53687092, 53024288, 52377650, 51746594, 51130564, 50529028, 49941481, 49367441,
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48806447, 48258060, 47721859, 47197443, 46684428, 46182445, 45691142, 45210183,
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44739243, 44278014, 43826197, 43383509, 42949673, 42524429, 42107523, 41698712,
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41297763, 40904451, 40518560, 40139882, 39768216, 39403370, 39045158, 38693400,
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38347923, 38008561, 37675152, 37347542, 37025581, 36709123, 36398028, 36092163,
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35791395, 35495598, 35204650, 34918434, 34636834, 34359739, 34087043, 33818641,
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33554432, 33294321, 33038210, 32786010, 32537632, 32292988, 32051995, 31814573,
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31580642, 31350127, 31122952, 30899046, 30678338, 30460761, 30246249, 30034737,
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29826162, 29620465, 29417585, 29217465, 29020050, 28825284, 28633116, 28443493,
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28256364, 28071682, 27889399, 27709467, 27531842, 27356480, 27183338, 27012373,
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26843546, 26676816, 26512144, 26349493, 26188825, 26030105, 25873297, 25718368,
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25565282, 25414008, 25264514, 25116768, 24970741, 24826401, 24683721, 24542671,
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24403224, 24265352, 24129030, 23994231, 23860930, 23729102, 23598722, 23469767,
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23342214, 23216040, 23091223, 22967740, 22845571, 22724695, 22605092, 22486740,
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22369622, 22253717, 22139007, 22025474, 21913099, 21801865, 21691755, 21582751,
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21474837, 21367997, 21262215, 21157475, 21053762, 20951060, 20849356, 20748635,
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20648882, 20550083, 20452226, 20355296, 20259280, 20164166, 20069941, 19976593,
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19884108, 19792477, 19701685, 19611723, 19522579, 19434242, 19346700, 19259944,
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19173962, 19088744, 19004281, 18920561, 18837576, 18755316, 18673771, 18592933,
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18512791, 18433337, 18354562, 18276457, 18199014, 18122225, 18046082, 17970575,
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17895698, 17821442, 17747799, 17674763, 17602325, 17530479, 17459217, 17388532,
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17318417, 17248865, 17179870, 17111424, 17043522, 16976156, 16909321, 16843010 };
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const byte fast_sqrt_tab[] = {
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0, 16, 23, 28, 32, 36, 39, 43, 46, 48, 51, 53, 56, 58, 60, 62,
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64, 66, 68, 70, 72, 74, 75, 77, 79, 80, 82, 83, 85, 86, 88, 89,
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91, 92, 94, 95, 96, 98, 99, 100, 101, 103, 104, 105, 106, 108, 109, 110,
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111, 112, 113, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
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143, 144, 145, 146, 147, 148, 149, 150, 150, 151, 152, 153, 154, 155, 155, 156,
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157, 158, 159, 159, 160, 161, 162, 163, 163, 164, 165, 166, 167, 167, 168, 169,
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170, 170, 171, 172, 173, 173, 174, 175, 176, 176, 177, 178, 178, 179, 180, 181,
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181, 182, 183, 183, 184, 185, 186, 186, 187, 188, 188, 189, 190, 190, 191, 192,
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192, 193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200, 201, 201, 202,
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203, 203, 204, 205, 205, 206, 206, 207, 208, 208, 209, 210, 210, 211, 211, 212,
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213, 213, 214, 214, 215, 216, 216, 217, 217, 218, 219, 219, 220, 220, 221, 221,
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222, 223, 223, 224, 224, 225, 225, 226, 227, 227, 228, 228, 229, 229, 230, 230,
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231, 232, 232, 233, 233, 234, 234, 235, 235, 236, 237, 237, 238, 238, 239, 239,
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240, 240, 241, 241, 242, 242, 243, 243, 244, 245, 245, 246, 246, 247, 247, 248,
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248, 249, 249, 250, 250, 251, 251, 252, 252, 253, 253, 254, 254, 255, 255, 255 };
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