Tidying.

[libdcp.git] / src / s_gamut3_transfer_function.cc

diff --git a/src/s_gamut3_transfer_function.cc b/src/s_gamut3_transfer_function.cc
index 599028b4cd70e782085b2d5edf582d3f86199607..edfbe2ad0429a3dc6e1c7d6f97e4852bcc40b2c8 100644 (file)
--- 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);
 }