/**************************************************************************** | |
** | |
** 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 |