magma.h

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#ifndef TATOOINE_COLOR_SCALES_MAGMA_H
#define TATOOINE_COLOR_SCALES_MAGMA_H
//==============================================================================
#include <tatooine/concepts.h>
#include <tatooine/vec.h>
#if TATOOINE_GL_AVAILABLE
#include <tatooine/gl/texture.h>
#endif
//==============================================================================
namespace tatooine::color_scales {
//==============================================================================
template <arithmetic Real>
struct magma {
  using real_type  = Real;
  using this_type  = magma<Real>;
  using color_type = vec<Real, 3>;
  static constexpr auto num_samples() -> std::size_t { return 256; }
  //==============================================================================
  std::unique_ptr<color_type[]> m_data;
  //==============================================================================
  magma()
      : m_data{new color_type[]{
            {0.001462, 0.000466, 0.013866},
            {0.002258, 0.0012949999999999999, 0.018331},
            {0.0032789999999999998, 0.0023050000000000002, 0.023708},
            {0.0045120000000000004, 0.00349, 0.029964999999999999},
            {0.0059500000000000004, 0.0048430000000000001,
             0.037130000000000003},
            {0.0075880000000000001, 0.0063559999999999997,
             0.044972999999999999},
            {0.0094260000000000004, 0.0080219999999999996,
             0.052844000000000002},
            {0.011464999999999999, 0.0098279999999999999, 0.060749999999999998},
            {0.013708, 0.011771, 0.068667000000000006},
            {0.016156, 0.01384, 0.076603000000000004},
            {0.018814999999999998, 0.016025999999999999, 0.084584000000000006},
            {0.021691999999999999, 0.018319999999999999, 0.092609999999999998},
            {0.024792000000000002, 0.020715000000000001, 0.100676},
            {0.028122999999999999, 0.023200999999999999, 0.10878699999999999},
            {0.031696000000000002, 0.025765, 0.116965},
            {0.035520000000000003, 0.028396999999999999, 0.12520899999999999},
            {0.039607999999999997, 0.03109, 0.13351499999999999},
            {0.043830000000000001, 0.033829999999999999, 0.14188600000000001},
            {0.048062000000000001, 0.036607000000000001, 0.15032699999999999},
            {0.052319999999999998, 0.039406999999999998, 0.15884100000000001},
            {0.056614999999999999, 0.042160000000000003, 0.16744600000000001},
            {0.060949000000000003, 0.044794, 0.17612900000000001},
            {0.065329999999999999, 0.047317999999999999, 0.184892},
            {0.069764000000000007, 0.049725999999999999, 0.19373499999999999},
            {0.074257000000000004, 0.052017000000000001, 0.20266000000000001},
            {0.078814999999999996, 0.054184000000000003, 0.21166699999999999},
            {0.083446000000000006, 0.056224999999999997, 0.22075500000000001},
            {0.088154999999999997, 0.058132999999999997, 0.22992199999999999},
            {0.092949000000000004, 0.059903999999999999, 0.23916399999999999},
            {0.097833000000000003, 0.061531000000000002, 0.248477},
            {0.102815, 0.063009999999999997, 0.25785400000000003},
            {0.10789899999999999, 0.064335000000000003, 0.267289},
            {0.113094, 0.065491999999999995, 0.27678399999999997},
            {0.118405, 0.066478999999999996, 0.28632099999999999},
            {0.123833, 0.067294999999999994, 0.295879},
            {0.12938, 0.067934999999999995, 0.30544300000000002},
            {0.13505300000000001, 0.068390999999999993, 0.315},
            {0.14085800000000001, 0.068654000000000007, 0.32453799999999999},
            {0.146785, 0.068737999999999994, 0.334011},
            {0.152839, 0.068637000000000004, 0.34340399999999999},
            {0.15901799999999999, 0.068353999999999998, 0.352688},
            {0.16530800000000001, 0.067910999999999999, 0.36181600000000003},
            {0.171713, 0.067305000000000004, 0.37077100000000002},
            {0.17821200000000001, 0.066575999999999996, 0.37949699999999997},
            {0.18480099999999999, 0.065731999999999999, 0.38797300000000001},
            {0.19145999999999999, 0.064818000000000001, 0.396152},
            {0.19817699999999999, 0.063862000000000002, 0.40400900000000001},
            {0.20493500000000001, 0.062907000000000005, 0.41151399999999999},
            {0.21171799999999999, 0.061991999999999998, 0.41864699999999999},
            {0.21851200000000001, 0.061157999999999997, 0.42539199999999999},
            {0.225302, 0.060444999999999999, 0.43174200000000001},
            {0.23207700000000001, 0.059888999999999998, 0.437695},
            {0.23882600000000001, 0.059517, 0.44325599999999998},
            {0.24554300000000001, 0.059352000000000002, 0.448436},
            {0.25222, 0.059415000000000003, 0.45324799999999998},
            {0.258857, 0.059706000000000002, 0.45771000000000001},
            {0.26544699999999999, 0.060236999999999999, 0.46183999999999997},
            {0.27199400000000001, 0.060994, 0.46566000000000002},
            {0.27849299999999999, 0.061977999999999998, 0.46919},
            {0.28495100000000001, 0.063168000000000002, 0.47245100000000001},
            {0.29136600000000001, 0.064552999999999999, 0.475462},
            {0.29774, 0.066116999999999995, 0.47824299999999997},
            {0.30408099999999999, 0.067835000000000006, 0.48081200000000002},
            {0.31038199999999999, 0.069702, 0.483186},
            {0.31665399999999999, 0.071690000000000004, 0.48537999999999998},
            {0.32289899999999999, 0.073782, 0.48740800000000001},
            {0.32911400000000002, 0.075971999999999998, 0.48928700000000003},
            {0.33530799999999999, 0.078236, 0.49102400000000002},
            {0.34148200000000001, 0.080563999999999997, 0.49263099999999999},
            {0.347636, 0.082946000000000006, 0.49412099999999998},
            {0.353773, 0.085373000000000004, 0.49550100000000002},
            {0.359898, 0.087831000000000006, 0.496778},
            {0.366012, 0.090314000000000005, 0.49796000000000001},
            {0.372116, 0.092815999999999996, 0.49905300000000002},
            {0.37821100000000002, 0.095332, 0.50006700000000004},
            {0.384299, 0.097854999999999998, 0.50100199999999995},
            {0.39038400000000001, 0.100379, 0.50186399999999998},
            {0.39646700000000001, 0.10290199999999999, 0.50265800000000005},
            {0.40254800000000002, 0.10542, 0.503386},
            {0.40862900000000002, 0.10793, 0.50405199999999994},
            {0.41470899999999999, 0.110431, 0.50466200000000005},
            {0.42079100000000003, 0.11292000000000001, 0.50521499999999997},
            {0.42687700000000001, 0.115395, 0.505714},
            {0.43296699999999999, 0.117855, 0.50616000000000005},
            {0.43906200000000001, 0.120298, 0.50655499999999998},
            {0.44516299999999998, 0.122724, 0.50690100000000005},
            {0.45127099999999998, 0.12513199999999999, 0.50719800000000004},
            {0.45738600000000001, 0.127522, 0.50744800000000001},
            {0.46350799999999998, 0.12989300000000001, 0.50765199999999999},
            {0.46964, 0.132245, 0.50780899999999995},
            {0.47577999999999998, 0.134577, 0.50792099999999996},
            {0.481929, 0.13689100000000001, 0.50798900000000002},
            {0.48808800000000002, 0.139186, 0.50801099999999999},
            {0.49425799999999998, 0.141462, 0.507988},
            {0.50043800000000005, 0.14371900000000001, 0.50792000000000004},
            {0.506629, 0.145958, 0.50780599999999998},
            {0.51283100000000004, 0.14817900000000001, 0.50764799999999999},
            {0.51904499999999998, 0.15038299999999999, 0.50744299999999998},
            {0.52527000000000001, 0.15256900000000001, 0.50719199999999998},
            {0.53150699999999995, 0.15473899999999999, 0.50689499999999998},
            {0.53775499999999998, 0.15689400000000001, 0.50655099999999997},
            {0.54401500000000003, 0.15903300000000001, 0.50615900000000003},
            {0.55028699999999997, 0.161158, 0.50571900000000003},
            {0.55657100000000004, 0.163269, 0.50522999999999996},
            {0.56286599999999998, 0.16536799999999999, 0.50469200000000003},
            {0.56917200000000001, 0.16745399999999999, 0.50410500000000003},
            {0.57548999999999995, 0.16952999999999999, 0.50346599999999997},
            {0.58181899999999998, 0.171596, 0.50277700000000003},
            {0.58815799999999996, 0.173652, 0.50203500000000001},
            {0.59450800000000004, 0.175701, 0.50124100000000005},
            {0.60086799999999996, 0.17774300000000001, 0.50039400000000001},
            {0.60723800000000006, 0.17977899999999999, 0.49949199999999999},
            {0.61361699999999997, 0.181811, 0.49853599999999998},
            {0.62000500000000003, 0.18384, 0.49752400000000002},
            {0.62640099999999999, 0.185867, 0.49645600000000001},
            {0.63280499999999995, 0.187893, 0.49533199999999999},
            {0.63921600000000001, 0.18992100000000001, 0.49414999999999998},
            {0.64563300000000001, 0.19195200000000001, 0.49291000000000001},
            {0.65205599999999997, 0.19398599999999999, 0.49161100000000002},
            {0.65848300000000004, 0.19602700000000001, 0.49025299999999999},
            {0.66491500000000003, 0.198075, 0.48883599999999999},
            {0.67134899999999997, 0.20013300000000001, 0.48735800000000001},
            {0.677786, 0.20220299999999999, 0.485819},
            {0.68422400000000005, 0.204286, 0.48421900000000001},
            {0.69066099999999997, 0.20638400000000001, 0.48255799999999999},
            {0.697098, 0.20850099999999999, 0.48083500000000001},
            {0.70353200000000005, 0.21063799999999999, 0.479049},
            {0.70996199999999998, 0.21279699999999999, 0.47720099999999999},
            {0.716387, 0.21498200000000001, 0.47528999999999999},
            {0.72280500000000003, 0.217194, 0.47331600000000001},
            {0.72921599999999998, 0.21943699999999999, 0.471279},
            {0.73561600000000005, 0.22171299999999999, 0.46917999999999999},
            {0.742004, 0.224025, 0.46701799999999999},
            {0.74837799999999999, 0.22637699999999999, 0.46479399999999998},
            {0.75473699999999999, 0.228772, 0.462509},
            {0.761077, 0.231214, 0.46016200000000002},
            {0.76739800000000002, 0.233705, 0.45775500000000002},
            {0.77369500000000002, 0.23624899999999999, 0.455289},
            {0.77996799999999999, 0.23885100000000001, 0.45276499999999997},
            {0.78621200000000002, 0.24151400000000001, 0.45018399999999997},
            {0.79242699999999999, 0.24424199999999999, 0.44754300000000002},
            {0.79860799999999998, 0.24704000000000001, 0.44484800000000002},
            {0.80475200000000002, 0.24991099999999999, 0.44210199999999999},
            {0.81085499999999999, 0.252861, 0.439305},
            {0.81691400000000003, 0.25589499999999998, 0.43646099999999999},
            {0.82292600000000005, 0.25901600000000002, 0.43357299999999999},
            {0.82888600000000001, 0.26222899999999999, 0.43064400000000003},
            {0.83479099999999995, 0.26554, 0.42767100000000002},
            {0.84063600000000005, 0.268953, 0.42466599999999999},
            {0.84641599999999995, 0.27247300000000002, 0.42163099999999998},
            {0.85212600000000005, 0.27610600000000002, 0.41857299999999997},
            {0.85776300000000005, 0.27985700000000002, 0.41549599999999998},
            {0.86331999999999998, 0.28372900000000001, 0.41240300000000002},
            {0.86879300000000004, 0.28772799999999998, 0.40930299999999997},
            {0.87417599999999995, 0.29185899999999998, 0.40620499999999998},
            {0.87946400000000002, 0.29612500000000003, 0.40311799999999998},
            {0.88465099999999997, 0.30053000000000002, 0.40004699999999999},
            {0.88973100000000005, 0.30507899999999999, 0.39700200000000002},
            {0.89470000000000005, 0.30977300000000002, 0.39399499999999998},
            {0.89955200000000002, 0.31461600000000001, 0.39103700000000002},
            {0.904281, 0.31961000000000001, 0.38813700000000001},
            {0.90888400000000003, 0.32475500000000002, 0.38530799999999998},
            {0.913354, 0.33005200000000001, 0.38256299999999999},
            {0.91768899999999998, 0.33550000000000002, 0.379915},
            {0.92188400000000004, 0.34109800000000001, 0.37737599999999999},
            {0.92593700000000001, 0.34684399999999999, 0.37495899999999999},
            {0.92984500000000003, 0.35273399999999999, 0.37267699999999998},
            {0.93360600000000005, 0.35876400000000003, 0.37054100000000001},
            {0.93722099999999997, 0.364929, 0.36856699999999998},
            {0.94068700000000005, 0.371224, 0.36676199999999998},
            {0.94400600000000001, 0.37764300000000001, 0.36513600000000002},
            {0.94718000000000002, 0.38417800000000002, 0.363701},
            {0.95021, 0.39082, 0.36246800000000001},
            {0.95309900000000003, 0.397563, 0.36143799999999998},
            {0.95584899999999995, 0.40439999999999998, 0.36061900000000002},
            {0.95846399999999998, 0.41132400000000002, 0.360014},
            {0.96094900000000005, 0.418323, 0.35963000000000001},
            {0.96331, 0.42538999999999999, 0.35946899999999998},
            {0.96554899999999999, 0.43251899999999999, 0.35952899999999999},
            {0.96767099999999995, 0.43970300000000001, 0.35981000000000002},
            {0.96967999999999999, 0.446936, 0.36031099999999999},
            {0.97158199999999995, 0.45421, 0.36103000000000002},
            {0.97338100000000005, 0.46151999999999999, 0.36196499999999998},
            {0.975082, 0.46886100000000003, 0.36311100000000002},
            {0.97668999999999995, 0.47622599999999998, 0.36446600000000001},
            {0.97821000000000002, 0.48361199999999999, 0.36602499999999999},
            {0.97964499999999999, 0.49101400000000001, 0.36778300000000003},
            {0.98099999999999998, 0.49842799999999998, 0.36973400000000001},
            {0.98227900000000001, 0.50585100000000005, 0.37187399999999998},
            {0.98348500000000005, 0.51327999999999996, 0.37419799999999998},
            {0.984622, 0.52071299999999998, 0.37669799999999998},
            {0.98569300000000004, 0.52814799999999995, 0.37937100000000001},
            {0.98670000000000002, 0.535582, 0.38220999999999999},
            {0.98764600000000002, 0.54301500000000003, 0.38521},
            {0.988533, 0.55044599999999999, 0.38836500000000002},
            {0.98936299999999999, 0.55787299999999995, 0.39167099999999999},
            {0.99013799999999996, 0.56529600000000002, 0.39512199999999997},
            {0.99087099999999995, 0.57270600000000005, 0.39871400000000001},
            {0.99155800000000005, 0.58010700000000004, 0.40244099999999999},
            {0.99219599999999997, 0.58750199999999997, 0.40629900000000002},
            {0.99278500000000003, 0.59489099999999995, 0.41028300000000001},
            {0.99332600000000004, 0.602275, 0.41438999999999998},
            {0.993834, 0.60964399999999996, 0.41861300000000001},
            {0.994309, 0.61699899999999996, 0.42294999999999999},
            {0.99473800000000001, 0.62434999999999996, 0.42739700000000003},
            {0.99512199999999995, 0.63169600000000004, 0.43195099999999997},
            {0.99548000000000003, 0.63902700000000001, 0.43660700000000002},
            {0.99580999999999997, 0.64634400000000003, 0.441361},
            {0.99609599999999998, 0.65365899999999999, 0.44621300000000003},
            {0.99634100000000003, 0.66096900000000003, 0.45116000000000001},
            {0.99658000000000002, 0.66825599999999996, 0.45619199999999999},
            {0.99677499999999997, 0.67554099999999995, 0.461314},
            {0.99692499999999995, 0.68282799999999999, 0.466526},
            {0.99707699999999999, 0.69008800000000003, 0.47181099999999998},
            {0.99718600000000002, 0.697349, 0.477182},
            {0.99725399999999997, 0.70461099999999999, 0.48263499999999998},
            {0.99732500000000002, 0.71184800000000004, 0.48815399999999998},
            {0.99735099999999999, 0.71908899999999998, 0.493755},
            {0.99735099999999999, 0.72632399999999997, 0.49942799999999998},
            {0.99734100000000003, 0.733545, 0.50516700000000003},
            {0.99728499999999998, 0.74077199999999999, 0.51098299999999997},
            {0.997228, 0.74798100000000001, 0.51685899999999996},
            {0.99713799999999997, 0.75519000000000003, 0.52280599999999999},
            {0.99701899999999999, 0.76239800000000002, 0.52882099999999999},
            {0.99689799999999995, 0.76959100000000003, 0.53489200000000003},
            {0.99672700000000003, 0.77679500000000001, 0.54103900000000005},
            {0.99657099999999998, 0.78397700000000003, 0.54723299999999997},
            {0.99636899999999995, 0.79116699999999995, 0.55349899999999996},
            {0.99616199999999999, 0.79834799999999995, 0.55981999999999998},
            {0.99593200000000004, 0.80552699999999999, 0.56620199999999998},
            {0.99568000000000001, 0.81270600000000004, 0.57264499999999996},
            {0.99542399999999998, 0.81987500000000002, 0.57913999999999999},
            {0.99513099999999999, 0.82705200000000001, 0.58570100000000003},
            {0.99485100000000004, 0.83421299999999998, 0.59230700000000003},
            {0.99452399999999996, 0.841387, 0.59898300000000004},
            {0.99422200000000005, 0.84853999999999996, 0.60569600000000001},
            {0.99386600000000003, 0.855711, 0.61248199999999997},
            {0.99354500000000001, 0.86285900000000004, 0.61929900000000004},
            {0.99317, 0.87002400000000002, 0.626189},
            {0.99283100000000002, 0.87716799999999995, 0.63310900000000003},
            {0.99243999999999999, 0.88432999999999995, 0.64009899999999997},
            {0.992089, 0.89146999999999998, 0.64711600000000002},
            {0.99168800000000001, 0.89862699999999995, 0.65420199999999995},
            {0.99133199999999999, 0.90576299999999998, 0.66130900000000004},
            {0.99092999999999998, 0.91291500000000003, 0.66848099999999999},
            {0.99056999999999995, 0.92004900000000001, 0.67567500000000003},
            {0.99017500000000003, 0.92719600000000002, 0.68292600000000003},
            {0.989815, 0.93432899999999997, 0.69019799999999998},
            {0.98943400000000004, 0.94147000000000003, 0.697519},
            {0.98907699999999998, 0.948604, 0.70486300000000002},
            {0.98871699999999996, 0.95574199999999998, 0.71224200000000004},
            {0.988367, 0.96287800000000001, 0.71964899999999998},
            {0.98803300000000005, 0.97001199999999999, 0.72707699999999997},
            {0.98769099999999999, 0.97715399999999997, 0.73453599999999997},
            {0.98738700000000001, 0.98428800000000005, 0.74200200000000005},
            {0.98705299999999996, 0.99143800000000004, 0.74950399999999995}}} {}
  //----------------------------------------------------------------------------
  auto data() -> auto& { return m_data; }
  auto data() const -> auto const& { return m_data; }
  //----------------------------------------------------------------------------
  auto sample(real_type t) const {
    if (t <= 0) {
      return m_data[0];
    }
    if (t >= 1) {
      return m_data[num_samples() - 1];
    }
    t *= static_cast<real_type>(num_samples() - 1);
    auto const i = static_cast<size_t>(std::floor(t));
    t            = t - static_cast<real_type>(i);
    return m_data[i] * (1 - t) + m_data[i + 1] * t;
  }
  //----------------------------------------------------------------------------
  auto operator()(real_type const t) const { return sample(t); }
};
//==============================================================================
magma()->magma<double>;
//==============================================================================
}  // namespace tatooine::color_scales
//==============================================================================
#endif