diff options
| author | Carl Hetherington <cth@carlh.net> | 2021-01-24 04:15:26 +0100 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2021-01-24 04:15:26 +0100 |
| commit | ceaf7bc52712cb60708ed5eb5c62c5e463dd8e89 (patch) | |
| tree | c55e4b85ee30138ce83263045d77d01631378b2e /src/s_gamut3_transfer_function.cc | |
| parent | 6c37cc1979b2a01205a888c4c98f3334685ee8dd (diff) | |
Tidying.
Diffstat (limited to 'src/s_gamut3_transfer_function.cc')
| -rw-r--r-- | src/s_gamut3_transfer_function.cc | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/src/s_gamut3_transfer_function.cc b/src/s_gamut3_transfer_function.cc index 599028b4..edfbe2ad 100644 --- a/src/s_gamut3_transfer_function.cc +++ b/src/s_gamut3_transfer_function.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net> + Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net> This file is part of libdcp. @@ -31,18 +31,22 @@ files in the program, then also delete it here. */ + /** @file src/s_gamut3_transfer_function.cc - * @brief SGamut3TransferFunction class. + * @brief SGamut3TransferFunction class */ + #include "s_gamut3_transfer_function.h" #include <cmath> + using std::pow; using std::shared_ptr; using std::dynamic_pointer_cast; using namespace dcp; + double * SGamut3TransferFunction::make_lut (int bit_depth, bool inverse) const { @@ -50,7 +54,7 @@ SGamut3TransferFunction::make_lut (int bit_depth, bool inverse) const double* lut = new double[bit_length]; if (inverse) { for (int i = 0; i < bit_length; ++i) { - double const p = static_cast<double> (i) / (bit_length - 1); + auto const p = static_cast<double>(i) / (bit_length - 1); if (p >= (0.01125 / 1023)) { lut[i] = (420 + log10((p + 0.01) / (0.18 + 0.01)) * 261.5) / 1023; } else { @@ -59,7 +63,7 @@ SGamut3TransferFunction::make_lut (int bit_depth, bool inverse) const } } else { for (int i = 0; i < bit_length; ++i) { - double const p = static_cast<double> (i) / (bit_length - 1); + auto const p = static_cast<double>(i) / (bit_length - 1); if (p >= (171.2102946929 / 1023)) { lut[i] = pow(10, ((p * 1023 - 420) / 261.5)) * (0.18 + 0.01) - 0.01; } else { @@ -70,9 +74,10 @@ SGamut3TransferFunction::make_lut (int bit_depth, bool inverse) const return lut; } + bool SGamut3TransferFunction::about_equal (shared_ptr<const TransferFunction> other, double) const { - shared_ptr<const SGamut3TransferFunction> o = dynamic_pointer_cast<const SGamut3TransferFunction> (other); + auto o = dynamic_pointer_cast<const SGamut3TransferFunction> (other); return static_cast<bool> (o); } |