From 45625f3116a09d3c8415a54bf8d19fdbb3a3aa9b Mon Sep 17 00:00:00 2001 From: Carl Hetherington Date: Wed, 13 Mar 2013 16:46:50 +0000 Subject: Compute LUTs at run-time. --- src/lut.h | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 src/lut.h (limited to 'src/lut.h') diff --git a/src/lut.h b/src/lut.h new file mode 100644 index 00000000..8363e6a4 --- /dev/null +++ b/src/lut.h @@ -0,0 +1,63 @@ +/* + Copyright (C) 2012 Carl Hetherington + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef LIBDCP_LUT_H +#define LIBDCP_LUT_H + +#include + +namespace libdcp { + +template +class LUT +{ +public: + LUT(int bit_depth, float gamma) + : _lut(0) + , _bit_depth (bit_depth) + , _gamma (gamma) + { + _lut = new T[int(std::pow(2, _bit_depth))]; + } + + virtual ~LUT() { + delete[] _lut; + } + + T const * lut() const { + return _lut; + } + + int bit_depth () const { + return _bit_depth; + } + + float gamma () const { + return _gamma; + } + +protected: + T* _lut; + int _bit_depth; + float _gamma; +}; + +} + +#endif -- cgit v1.2.3