sin32.cpp.hpp

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#include "fl/stl/int.h"
#include "fl/math/sin32.h"
#include "fastled_progmem.h"
 
namespace fl {
 
// Paired sin/cos quarter-wave LUT with interleaved values and derivatives.
// Layout per entry [qi]: { y_sin(qi), m_sin(qi), y_cos(qi), m_cos(qi) }
// where y_cos(qi) = y_sin(64-qi) and m_cos(qi) = m_sin(64-qi).
// This means accessing sinCosPairedLut[qi*4] gives both sin AND cos values
// in the same cache line (16 bytes per entry, 4 entries per 64B line).
// 65 entries x 4 i32 = 260 i32 = 1040 bytes.
//
// Generated by ci/generate_sin_lut.py
FL_ALIGN_PROGMEM(64) const i32 FL_PROGMEM sinCosPairedLut[] = {
    // [qi] y_sin, m_sin, y_cos(=y_sin[64-qi]), m_cos(=m_sin[64-qi])
               0,   52705570,  2147418112,          0,  // [ 0]
        52700279,   52689696,  2146771350,    1293459,  // [ 1]
       105368813,   52642084,  2144831453,    2586140,  // [ 2]
       157973876,   52562762,  2141599590,    3877262,  // [ 3]
       210483782,   52451778,  2137077707,    5166049,  // [ 4]
       262866901,   52309200,  2131268528,    6451724,  // [ 5]
       315091678,   52135112,  2124175553,    7733513,  // [ 6]
       367126656,   51929620,  2115803055,    9010644,  // [ 7]
       418940491,   51692847,  2106156075,   10282347,  // [ 8]
       470501971,   51424937,  2095240426,   11547856,  // [ 9]
       521780039,   51126050,  2083062682,   12806409,  // [10]
       572743806,   50796367,  2069630180,   14057248,  // [11]
       623362574,   50436086,  2054951009,   15299619,  // [12]
       673605851,   50045424,  2039034013,   16532775,  // [13]
       723443373,   49624617,  2021888779,   17755972,  // [14]
       772845120,   49173917,  2003525635,   18968473,  // [15]
       821781334,   48693597,  1983955641,   20169548,  // [16]
       870222537,   48183946,  1963190588,   21358474,  // [17]
       918139552,   47645271,  1941242981,   22534535,  // [18]
       965503513,   47077896,  1918126042,   23697021,  // [19]
      1012285891,   46482163,  1893853696,   24845234,  // [20]
      1058458505,   45858431,  1868440564,   25978480,  // [21]
      1103993544,   45207075,  1841901952,   27096078,  // [22]
      1148863579,   44528489,  1814253848,   28197355,  // [23]
      1193041581,   43823080,  1785512905,   29281646,  // [24]
      1236500939,   43091274,  1755696436,   30348299,  // [25]
      1279215476,   42333511,  1724822401,   31396671,  // [26]
      1321159461,   41550248,  1692909397,   32426132,  // [27]
      1362307629,   40741957,  1659976648,   33436060,  // [28]
      1402635193,   39909124,  1626043992,   34425847,  // [29]
      1442117863,   39052251,  1591131867,   35394898,  // [30]
      1480731855,   38171855,  1555261303,   36342627,  // [31]
      1518453909,   37268466,  1518453909,   37268466,  // [32] (sin==cos at 45 deg)
      1555261303,   36342627,  1480731855,   38171855,  // [33]
      1591131867,   35394898,  1442117863,   39052251,  // [34]
      1626043992,   34425847,  1402635193,   39909124,  // [35]
      1659976648,   33436060,  1362307629,   40741957,  // [36]
      1692909397,   32426132,  1321159461,   41550248,  // [37]
      1724822401,   31396671,  1279215476,   42333511,  // [38]
      1755696436,   30348299,  1236500939,   43091274,  // [39]
      1785512905,   29281646,  1193041581,   43823080,  // [40]
      1814253848,   28197355,  1148863579,   44528489,  // [41]
      1841901952,   27096078,  1103993544,   45207075,  // [42]
      1868440564,   25978480,  1058458505,   45858431,  // [43]
      1893853696,   24845234,  1012285891,   46482163,  // [44]
      1918126042,   23697021,   965503513,   47077896,  // [45]
      1941242981,   22534535,   918139552,   47645271,  // [46]
      1963190588,   21358474,   870222537,   48183946,  // [47]
      1983955641,   20169548,   821781334,   48693597,  // [48]
      2003525635,   18968473,   772845120,   49173917,  // [49]
      2021888779,   17755972,   723443373,   49624617,  // [50]
      2039034013,   16532775,   673605851,   50045424,  // [51]
      2054951009,   15299619,   623362574,   50436086,  // [52]
      2069630180,   14057248,   572743806,   50796367,  // [53]
      2083062682,   12806409,   521780039,   51126050,  // [54]
      2095240426,   11547856,   470501971,   51424937,  // [55]
      2106156075,   10282347,   418940491,   51692847,  // [56]
      2115803055,    9010644,   367126656,   51929620,  // [57]
      2124175553,    7733513,   315091678,   52135112,  // [58]
      2131268528,    6451724,   262866901,   52309200,  // [59]
      2137077707,    5166049,   210483782,   52451778,  // [60]
      2141599590,    3877262,   157973876,   52562762,  // [61]
      2144831453,    2586140,   105368813,   52642084,  // [62]
      2146771350,    1293459,    52700279,   52689696,  // [63]
      2147418112,          0,           0,   52705570,  // [64]
};
 
} // namespace fl