1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
|
