diff options
Diffstat (limited to 'src/gui/opengl/qopenglgradientcache.cpp')
| -rw-r--r-- | src/gui/opengl/qopenglgradientcache.cpp | 67 |
1 files changed, 34 insertions, 33 deletions
diff --git a/src/gui/opengl/qopenglgradientcache.cpp b/src/gui/opengl/qopenglgradientcache.cpp index 13bad9aabb..58dcbed50a 100644 --- a/src/gui/opengl/qopenglgradientcache.cpp +++ b/src/gui/opengl/qopenglgradientcache.cpp @@ -1,31 +1,37 @@ /**************************************************************************** ** -** Copyright (C) 2015 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtGui module of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:LGPL21$ +** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms -** and conditions see http://www.qt.io/terms-conditions. For further -** information use the contact form at http://www.qt.io/contact-us. +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 or version 3 as published by the Free -** Software Foundation and appearing in the file LICENSE.LGPLv21 and -** LICENSE.LGPLv3 included in the packaging of this file. Please review the -** following information to ensure the GNU Lesser General Public License -** requirements will be met: https://www.gnu.org/licenses/lgpl.html and -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** -** As a special exception, The Qt Company gives you certain additional -** rights. These rights are described in The Qt Company LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** @@ -102,7 +108,7 @@ GLuint QOpenGL2GradientCache::getBuffer(const QGradient &gradient, qreal opacity { quint64 hash_val = 0; - QGradientStops stops = gradient.stops(); + const QGradientStops stops = gradient.stops(); for (int i = 0; i < stops.size() && i <= 2; i++) hash_val += stops[i].second.rgba(); @@ -164,16 +170,12 @@ GLuint QOpenGL2GradientCache::addCacheElement(quint64 hash_val, const QGradient void QOpenGL2GradientCache::generateGradientColorTable(const QGradient& gradient, QRgba64 *colorTable, int size, qreal opacity) const { int pos = 0; - QGradientStops s = gradient.stops(); - QVector<QRgba64> colors(s.size()); - - for (int i = 0; i < s.size(); ++i) - colors[i] = s[i].second.rgba64(); + const QGradientStops s = gradient.stops(); bool colorInterpolation = (gradient.interpolationMode() == QGradient::ColorInterpolation); uint alpha = qRound(opacity * 256); - QRgba64 current_color = combineAlpha256(colors[0], alpha); + QRgba64 current_color = combineAlpha256(s[0].second.rgba64(), alpha); qreal incr = 1.0 / qreal(size); qreal fpos = 1.5 * incr; colorTable[pos++] = qPremultiply(current_color); @@ -187,9 +189,10 @@ void QOpenGL2GradientCache::generateGradientColorTable(const QGradient& gradient if (colorInterpolation) current_color = qPremultiply(current_color); - for (int i = 0; i < s.size() - 1; ++i) { + const int sLast = s.size() - 1; + for (int i = 0; i < sLast; ++i) { qreal delta = 1/(s[i+1].first - s[i].first); - QRgba64 next_color = combineAlpha256(colors[i+1], alpha); + QRgba64 next_color = combineAlpha256(s[i + 1].second.rgba64(), alpha); if (colorInterpolation) next_color = qPremultiply(next_color); @@ -208,7 +211,7 @@ void QOpenGL2GradientCache::generateGradientColorTable(const QGradient& gradient Q_ASSERT(s.size() > 0); - QRgba64 last_color = qPremultiply(combineAlpha256(colors[s.size() - 1], alpha)); + QRgba64 last_color = qPremultiply(combineAlpha256(s[sLast].second.rgba64(), alpha)); for (;pos < size; ++pos) colorTable[pos] = last_color; @@ -219,16 +222,13 @@ void QOpenGL2GradientCache::generateGradientColorTable(const QGradient& gradient void QOpenGL2GradientCache::generateGradientColorTable(const QGradient& gradient, uint *colorTable, int size, qreal opacity) const { int pos = 0; - QGradientStops s = gradient.stops(); - QVector<uint> colors(s.size()); - - for (int i = 0; i < s.size(); ++i) - colors[i] = s[i].second.rgba(); // Qt LIES! It returns ARGB (on little-endian AND on big-endian) + const QGradientStops s = gradient.stops(); bool colorInterpolation = (gradient.interpolationMode() == QGradient::ColorInterpolation); uint alpha = qRound(opacity * 256); - uint current_color = ARGB_COMBINE_ALPHA(colors[0], alpha); + // Qt LIES! It returns ARGB (on little-endian AND on big-endian) + uint current_color = ARGB_COMBINE_ALPHA(s[0].second.rgba(), alpha); qreal incr = 1.0 / qreal(size); qreal fpos = 1.5 * incr; colorTable[pos++] = ARGB2RGBA(qPremultiply(current_color)); @@ -242,9 +242,10 @@ void QOpenGL2GradientCache::generateGradientColorTable(const QGradient& gradient if (colorInterpolation) current_color = qPremultiply(current_color); - for (int i = 0; i < s.size() - 1; ++i) { + const int sLast = s.size() - 1; + for (int i = 0; i < sLast; ++i) { qreal delta = 1/(s[i+1].first - s[i].first); - uint next_color = ARGB_COMBINE_ALPHA(colors[i+1], alpha); + uint next_color = ARGB_COMBINE_ALPHA(s[i + 1].second.rgba(), alpha); if (colorInterpolation) next_color = qPremultiply(next_color); @@ -263,7 +264,7 @@ void QOpenGL2GradientCache::generateGradientColorTable(const QGradient& gradient Q_ASSERT(s.size() > 0); - uint last_color = ARGB2RGBA(qPremultiply(ARGB_COMBINE_ALPHA(colors[s.size() - 1], alpha))); + uint last_color = ARGB2RGBA(qPremultiply(ARGB_COMBINE_ALPHA(s[sLast].second.rgba(), alpha))); for (;pos < size; ++pos) colorTable[pos] = last_color; |