| Absolute File Name: | /home/qt/qt5_coco/qt5/qtbase/src/gui/painting/qgammatables.cpp |
| Source code | Switch to Preprocessed file |
| Line | Source | Count | ||||||
|---|---|---|---|---|---|---|---|---|
| 1 | /**************************************************************************** | - | ||||||
| 2 | ** | - | ||||||
| 3 | ** Copyright (C) 2016 The Qt Company Ltd. | - | ||||||
| 4 | ** Contact: https://www.qt.io/licensing/ | - | ||||||
| 5 | ** | - | ||||||
| 6 | ** This file is part of the QtGui module of the Qt Toolkit. | - | ||||||
| 7 | ** | - | ||||||
| 8 | ** $QT_BEGIN_LICENSE:LGPL$ | - | ||||||
| 9 | ** Commercial License Usage | - | ||||||
| 10 | ** Licensees holding valid commercial Qt licenses may use this file in | - | ||||||
| 11 | ** accordance with the commercial license agreement provided with the | - | ||||||
| 12 | ** Software or, alternatively, in accordance with the terms contained in | - | ||||||
| 13 | ** a written agreement between you and The Qt Company. For licensing terms | - | ||||||
| 14 | ** and conditions see https://www.qt.io/terms-conditions. For further | - | ||||||
| 15 | ** information use the contact form at https://www.qt.io/contact-us. | - | ||||||
| 16 | ** | - | ||||||
| 17 | ** GNU Lesser General Public License Usage | - | ||||||
| 18 | ** Alternatively, this file may be used under the terms of the GNU Lesser | - | ||||||
| 19 | ** General Public License version 3 as published by the Free Software | - | ||||||
| 20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the | - | ||||||
| 21 | ** packaging of this file. Please review the following information to | - | ||||||
| 22 | ** ensure the GNU Lesser General Public License version 3 requirements | - | ||||||
| 23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. | - | ||||||
| 24 | ** | - | ||||||
| 25 | ** GNU General Public License Usage | - | ||||||
| 26 | ** Alternatively, this file may be used under the terms of the GNU | - | ||||||
| 27 | ** General Public License version 2.0 or (at your option) the GNU General | - | ||||||
| 28 | ** Public license version 3 or any later version approved by the KDE Free | - | ||||||
| 29 | ** Qt Foundation. The licenses are as published by the Free Software | - | ||||||
| 30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 | - | ||||||
| 31 | ** included in the packaging of this file. Please review the following | - | ||||||
| 32 | ** information to ensure the GNU General Public License requirements will | - | ||||||
| 33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and | - | ||||||
| 34 | ** https://www.gnu.org/licenses/gpl-3.0.html. | - | ||||||
| 35 | ** | - | ||||||
| 36 | ** $QT_END_LICENSE$ | - | ||||||
| 37 | ** | - | ||||||
| 38 | ****************************************************************************/ | - | ||||||
| 39 | - | |||||||
| 40 | #include <private/qdrawhelper_p.h> | - | ||||||
| 41 | - | |||||||
| 42 | QT_BEGIN_NAMESPACE | - | ||||||
| 43 | - | |||||||
| 44 | - | |||||||
| 45 | QDrawHelperGammaTables::QDrawHelperGammaTables(qreal smoothing) | - | ||||||
| 46 | { | - | ||||||
| 47 | const qreal gray_gamma = 2.31; | - | ||||||
| 48 | for (int i=0; i<256; ++i)
| 0 | ||||||
| 49 | qt_pow_gamma[i] = uint(qRound(qPow(i / qreal(255.), gray_gamma) * 2047)); never executed: qt_pow_gamma[i] = uint(qRound(qPow(i / qreal(255.), gray_gamma) * 2047)); | 0 | ||||||
| 50 | for (int i=0; i<2048; ++i)
| 0 | ||||||
| 51 | qt_pow_invgamma[i] = uchar(qRound(qPow(i / qreal(2047.0), 1 / gray_gamma) * 255)); never executed: qt_pow_invgamma[i] = uchar(qRound(qPow(i / qreal(2047.0), 1 / gray_gamma) * 255)); | 0 | ||||||
| 52 | - | |||||||
| 53 | refresh(smoothing); | - | ||||||
| 54 | } never executed: end of block | 0 | ||||||
| 55 | - | |||||||
| 56 | void QDrawHelperGammaTables::refresh(qreal smoothing) | - | ||||||
| 57 | { | - | ||||||
| 58 | for (int i=0; i<256; ++i) {
| 0 | ||||||
| 59 | qt_pow_rgb_gamma[i] = uchar(qRound(qPow(i / qreal(255.0), smoothing) * 255)); | - | ||||||
| 60 | qt_pow_rgb_invgamma[i] = uchar(qRound(qPow(i / qreal(255.), 1 / smoothing) * 255)); | - | ||||||
| 61 | } never executed: end of block | 0 | ||||||
| 62 | } never executed: end of block | 0 | ||||||
| 63 | - | |||||||
| 64 | QT_END_NAMESPACE | - | ||||||
| Source code | Switch to Preprocessed file |