File indexing completed on 2024-05-12 17:02:06

0001 /*
0002     KWin - the KDE window manager
0003     This file is part of the KDE project.
0004 
0005     SPDX-FileCopyrightText: 2022 Xaver Hugl <xaver.hugl@gmail.com>
0006 
0007     SPDX-License-Identifier: GPL-2.0-or-later
0008 */
0009 #include "colorlut.h"
0010 
0011 #include "colortransformation.h"
0012 
0013 namespace KWin
0014 {
0015 
0016 ColorLUT::ColorLUT(const std::shared_ptr<ColorTransformation> &transformation, size_t size)
0017     : m_transformation(transformation)
0018 {
0019     m_data.fill(0, 3 * size);
0020     for (uint64_t i = 0; i < size; i++) {
0021         const uint16_t index = (i * 0xFFFF) / size;
0022         std::tie(m_data[i], m_data[size + i], m_data[size * 2 + i]) = transformation->transform(index, index, index);
0023     }
0024 }
0025 
0026 uint16_t *ColorLUT::red() const
0027 {
0028     return const_cast<uint16_t *>(m_data.constData());
0029 }
0030 
0031 uint16_t *ColorLUT::green() const
0032 {
0033     return const_cast<uint16_t *>(m_data.constData() + size());
0034 }
0035 
0036 uint16_t *ColorLUT::blue() const
0037 {
0038     return const_cast<uint16_t *>(m_data.constData() + 2 * size());
0039 }
0040 
0041 size_t ColorLUT::size() const
0042 {
0043     return m_data.size() / 3;
0044 }
0045 
0046 std::shared_ptr<ColorTransformation> ColorLUT::transformation() const
0047 {
0048     return m_transformation;
0049 }
0050 
0051 }