| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
| ** License version 2.1 as published by the Free Software Foundation and |
| ** appearing in the file LICENSE.LGPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU Lesser |
| ** General Public License version 2.1 requirements will be met: |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** In addition, as a special exception, Nokia gives you certain additional |
| ** rights. These rights are described in the Nokia Qt 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 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qcolormap.h" |
| #include "qcolor.h" |
| #include "qpaintdevice.h" |
| #include "qscreen_qws.h" |
| #include "qwsdisplay_qws.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QColormapPrivate |
| { |
| public: |
| inline QColormapPrivate() |
| : ref(1), mode(QColormap::Direct), depth(0), numcolors(0) |
| { } |
| |
| QAtomicInt ref; |
| |
| QColormap::Mode mode; |
| int depth; |
| int numcolors; |
| }; |
| |
| static QColormapPrivate *screenMap = 0; |
| |
| void QColormap::initialize() |
| { |
| screenMap = new QColormapPrivate; |
| |
| screenMap->depth = QPaintDevice::qwsDisplay()->depth(); |
| if (screenMap->depth < 8) { |
| screenMap->mode = QColormap::Indexed; |
| screenMap->numcolors = 256; |
| } else { |
| screenMap->mode = QColormap::Direct; |
| screenMap->numcolors = -1; |
| } |
| } |
| |
| void QColormap::cleanup() |
| { |
| delete screenMap; |
| screenMap = 0; |
| } |
| |
| QColormap QColormap::instance(int /*screen*/) |
| { |
| return QColormap(); |
| } |
| |
| QColormap::QColormap() |
| : d(screenMap) |
| { d->ref.ref(); } |
| |
| QColormap::QColormap(const QColormap &colormap) |
| :d (colormap.d) |
| { d->ref.ref(); } |
| |
| QColormap::~QColormap() |
| { |
| if (!d->ref.deref()) |
| delete d; |
| } |
| |
| QColormap::Mode QColormap::mode() const |
| { return d->mode; } |
| |
| |
| int QColormap::depth() const |
| { return d->depth; } |
| |
| |
| int QColormap::size() const |
| { |
| return d->numcolors; |
| } |
| |
| uint QColormap::pixel(const QColor &color) const |
| { |
| QRgb rgb = color.rgba(); |
| if (d->mode == QColormap::Direct) { |
| switch(d->depth) { |
| case 16: |
| return qt_convRgbTo16(rgb); |
| case 24: |
| case 32: |
| { |
| const int r = qRed(rgb); |
| const int g = qGreen(rgb); |
| const int b = qBlue(rgb); |
| const int red_shift = 16; |
| const int green_shift = 8; |
| const int red_mask = 0xff0000; |
| const int green_mask = 0x00ff00; |
| const int blue_mask = 0x0000ff; |
| const int tg = g << green_shift; |
| #ifdef QT_QWS_DEPTH_32_BGR |
| if (qt_screen->pixelType() == QScreen::BGRPixel) { |
| const int tb = b << red_shift; |
| return 0xff000000 | (r & blue_mask) | (tg & green_mask) | (tb & red_mask); |
| } |
| #endif |
| const int tr = r << red_shift; |
| return 0xff000000 | (b & blue_mask) | (tg & green_mask) | (tr & red_mask); |
| } |
| } |
| } |
| return qt_screen->alloc(qRed(rgb), qGreen(rgb), qBlue(rgb)); |
| } |
| |
| const QColor QColormap::colorAt(uint pixel) const |
| { |
| if (d->mode == Direct) { |
| if (d->depth == 16) { |
| pixel = qt_conv16ToRgb(pixel); |
| } |
| const int red_shift = 16; |
| const int green_shift = 8; |
| const int red_mask = 0xff0000; |
| const int green_mask = 0x00ff00; |
| const int blue_mask = 0x0000ff; |
| #ifdef QT_QWS_DEPTH_32_BGR |
| if (qt_screen->pixelType() == QScreen::BGRPixel) { |
| return QColor((pixel & blue_mask), |
| (pixel & green_mask) >> green_shift, |
| (pixel & red_mask) >> red_shift); |
| } |
| #endif |
| return QColor((pixel & red_mask) >> red_shift, |
| (pixel & green_mask) >> green_shift, |
| (pixel & blue_mask)); |
| } |
| Q_ASSERT_X(int(pixel) < qt_screen->colorCount(), "QColormap::colorAt", "pixel out of bounds of palette"); |
| return QColor(qt_screen->clut()[pixel]); |
| } |
| |
| const QVector<QColor> QColormap::colormap() const |
| { |
| return QVector<QColor>(); |
| } |
| |
| QColormap &QColormap::operator=(const QColormap &colormap) |
| { qAtomicAssign(d, colormap.d); return *this; } |
| |
| QT_END_NAMESPACE |