Absolute File Name: | /home/qt/qt5_coco/qt5/qtbase/src/widgets/util/qcolormap.cpp |
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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 QtWidgets 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 "qcolormap.h" | - | ||||||
41 | #include "qcolor.h" | - | ||||||
42 | #include "qpaintdevice.h" | - | ||||||
43 | #include "qscreen.h" | - | ||||||
44 | #include "qguiapplication.h" | - | ||||||
45 | - | |||||||
46 | QT_BEGIN_NAMESPACE | - | ||||||
47 | - | |||||||
48 | class QColormapPrivate | - | ||||||
49 | { | - | ||||||
50 | public: | - | ||||||
51 | inline QColormapPrivate() | - | ||||||
52 | : ref(1), mode(QColormap::Direct), depth(0), numcolors(0) | - | ||||||
53 | { } never executed: end of block | 0 | ||||||
54 | - | |||||||
55 | QAtomicInt ref; | - | ||||||
56 | - | |||||||
57 | QColormap::Mode mode; | - | ||||||
58 | int depth; | - | ||||||
59 | int numcolors; | - | ||||||
60 | }; | - | ||||||
61 | - | |||||||
62 | static QColormapPrivate *screenMap = 0; | - | ||||||
63 | - | |||||||
64 | void QColormap::initialize() | - | ||||||
65 | { | - | ||||||
66 | screenMap = new QColormapPrivate; | - | ||||||
67 | if (Q_UNLIKELY(!QGuiApplication::primaryScreen())) {
| 0 | ||||||
68 | qWarning("no screens available, assuming 24-bit color"); | - | ||||||
69 | screenMap->depth = 24; | - | ||||||
70 | screenMap->mode = QColormap::Direct; | - | ||||||
71 | return; never executed: return; | 0 | ||||||
72 | } | - | ||||||
73 | screenMap->depth = QGuiApplication::primaryScreen()->depth(); | - | ||||||
74 | if (screenMap->depth < 8) {
| 0 | ||||||
75 | screenMap->mode = QColormap::Indexed; | - | ||||||
76 | screenMap->numcolors = 256; | - | ||||||
77 | } else { never executed: end of block | 0 | ||||||
78 | screenMap->mode = QColormap::Direct; | - | ||||||
79 | screenMap->numcolors = -1; | - | ||||||
80 | } never executed: end of block | 0 | ||||||
81 | } | - | ||||||
82 | - | |||||||
83 | void QColormap::cleanup() | - | ||||||
84 | { | - | ||||||
85 | delete screenMap; | - | ||||||
86 | screenMap = 0; | - | ||||||
87 | } never executed: end of block | 0 | ||||||
88 | - | |||||||
89 | QColormap QColormap::instance(int /*screen*/) | - | ||||||
90 | { | - | ||||||
91 | return QColormap(); never executed: return QColormap(); | 0 | ||||||
92 | } | - | ||||||
93 | - | |||||||
94 | QColormap::QColormap() | - | ||||||
95 | : d(screenMap) | - | ||||||
96 | { never executed: d->ref.ref(); }end of block never executed: end of block | 0 | ||||||
97 | - | |||||||
98 | QColormap::QColormap(const QColormap &colormap) | - | ||||||
99 | :d (colormap.d) | - | ||||||
100 | { never executed: d->ref.ref(); }end of block never executed: end of block | 0 | ||||||
101 | - | |||||||
102 | QColormap::~QColormap() | - | ||||||
103 | { | - | ||||||
104 | if (!d->ref.deref())
| 0 | ||||||
105 | delete d; never executed: delete d; | 0 | ||||||
106 | } never executed: end of block | 0 | ||||||
107 | - | |||||||
108 | QColormap::Mode QColormap::mode() const | - | ||||||
109 | { never executed: return d->mode; }return d->mode; never executed: return d->mode; | 0 | ||||||
110 | - | |||||||
111 | - | |||||||
112 | int QColormap::depth() const | - | ||||||
113 | { never executed: return d->depth; }return d->depth; never executed: return d->depth; | 0 | ||||||
114 | - | |||||||
115 | - | |||||||
116 | int QColormap::size() const | - | ||||||
117 | { | - | ||||||
118 | return d->numcolors; never executed: return d->numcolors; | 0 | ||||||
119 | } | - | ||||||
120 | - | |||||||
121 | #ifndef QT_QWS_DEPTH16_RGB | - | ||||||
122 | #define QT_QWS_DEPTH16_RGB 565 | - | ||||||
123 | #endif | - | ||||||
124 | static const int qt_rbits = (QT_QWS_DEPTH16_RGB/100); | - | ||||||
125 | static const int qt_gbits = (QT_QWS_DEPTH16_RGB/10%10); | - | ||||||
126 | static const int qt_bbits = (QT_QWS_DEPTH16_RGB%10); | - | ||||||
127 | static const int qt_red_shift = qt_bbits+qt_gbits-(8-qt_rbits); | - | ||||||
128 | static const int qt_green_shift = qt_bbits-(8-qt_gbits); | - | ||||||
129 | static const int qt_neg_blue_shift = 8-qt_bbits; | - | ||||||
130 | static const int qt_blue_mask = (1<<qt_bbits)-1; | - | ||||||
131 | static const int qt_green_mask = (1<<(qt_gbits+qt_bbits))-(1<<qt_bbits); | - | ||||||
132 | static const int qt_red_mask = (1<<(qt_rbits+qt_gbits+qt_bbits))-(1<<(qt_gbits+qt_bbits)); | - | ||||||
133 | - | |||||||
134 | static const int qt_red_rounding_shift = qt_red_shift + qt_rbits; | - | ||||||
135 | static const int qt_green_rounding_shift = qt_green_shift + qt_gbits; | - | ||||||
136 | static const int qt_blue_rounding_shift = qt_bbits - qt_neg_blue_shift; | - | ||||||
137 | - | |||||||
138 | inline ushort qt_convRgbTo16(QRgb c) | - | ||||||
139 | { | - | ||||||
140 | const int tr = qRed(c) << qt_red_shift; | - | ||||||
141 | const int tg = qGreen(c) << qt_green_shift; | - | ||||||
142 | const int tb = qBlue(c) >> qt_neg_blue_shift; | - | ||||||
143 | - | |||||||
144 | return (tb & qt_blue_mask) | (tg & qt_green_mask) | (tr & qt_red_mask); never executed: return (tb & qt_blue_mask) | (tg & qt_green_mask) | (tr & qt_red_mask); | 0 | ||||||
145 | } | - | ||||||
146 | - | |||||||
147 | inline QRgb qt_conv16ToRgb(ushort c) | - | ||||||
148 | { | - | ||||||
149 | const int r=(c & qt_red_mask); | - | ||||||
150 | const int g=(c & qt_green_mask); | - | ||||||
151 | const int b=(c & qt_blue_mask); | - | ||||||
152 | const int tr = r >> qt_red_shift | r >> qt_red_rounding_shift; | - | ||||||
153 | const int tg = g >> qt_green_shift | g >> qt_green_rounding_shift; | - | ||||||
154 | const int tb = b << qt_neg_blue_shift | b >> qt_blue_rounding_shift; | - | ||||||
155 | - | |||||||
156 | return qRgb(tr,tg,tb); never executed: return qRgb(tr,tg,tb); | 0 | ||||||
157 | } | - | ||||||
158 | - | |||||||
159 | uint QColormap::pixel(const QColor &color) const | - | ||||||
160 | { | - | ||||||
161 | QRgb rgb = color.rgba(); | - | ||||||
162 | if (d->mode == QColormap::Direct) {
| 0 | ||||||
163 | switch(d->depth) { | - | ||||||
164 | case 16: never executed: case 16: | 0 | ||||||
165 | return qt_convRgbTo16(rgb); never executed: return qt_convRgbTo16(rgb); | 0 | ||||||
166 | case 24: never executed: case 24: | 0 | ||||||
167 | case 32: never executed: case 32: | 0 | ||||||
168 | { | - | ||||||
169 | const int r = qRed(rgb); | - | ||||||
170 | const int g = qGreen(rgb); | - | ||||||
171 | const int b = qBlue(rgb); | - | ||||||
172 | const int red_shift = 16; | - | ||||||
173 | const int green_shift = 8; | - | ||||||
174 | const int red_mask = 0xff0000; | - | ||||||
175 | const int green_mask = 0x00ff00; | - | ||||||
176 | const int blue_mask = 0x0000ff; | - | ||||||
177 | const int tg = g << green_shift; | - | ||||||
178 | #ifdef QT_QWS_DEPTH_32_BGR | - | ||||||
179 | if (qt_screen->pixelType() == QScreen::BGRPixel) { | - | ||||||
180 | const int tb = b << red_shift; | - | ||||||
181 | return 0xff000000 | (r & blue_mask) | (tg & green_mask) | (tb & red_mask); | - | ||||||
182 | } | - | ||||||
183 | #endif | - | ||||||
184 | const int tr = r << red_shift; | - | ||||||
185 | return 0xff000000 | (b & blue_mask) | (tg & green_mask) | (tr & red_mask); never executed: return 0xff000000 | (b & blue_mask) | (tg & green_mask) | (tr & red_mask); | 0 | ||||||
186 | } | - | ||||||
187 | } | - | ||||||
188 | } never executed: end of block | 0 | ||||||
189 | //XXX | - | ||||||
190 | //return qt_screen->alloc(qRed(rgb), qGreen(rgb), qBlue(rgb)); | - | ||||||
191 | return 0; never executed: return 0; | 0 | ||||||
192 | } | - | ||||||
193 | - | |||||||
194 | const QColor QColormap::colorAt(uint pixel) const | - | ||||||
195 | { | - | ||||||
196 | if (d->mode == Direct) {
| 0 | ||||||
197 | if (d->depth == 16) {
| 0 | ||||||
198 | pixel = qt_conv16ToRgb(pixel); | - | ||||||
199 | } never executed: end of block | 0 | ||||||
200 | const int red_shift = 16; | - | ||||||
201 | const int green_shift = 8; | - | ||||||
202 | const int red_mask = 0xff0000; | - | ||||||
203 | const int green_mask = 0x00ff00; | - | ||||||
204 | const int blue_mask = 0x0000ff; | - | ||||||
205 | #ifdef QT_QWS_DEPTH_32_BGR | - | ||||||
206 | if (qt_screen->pixelType() == QScreen::BGRPixel) { | - | ||||||
207 | return QColor((pixel & blue_mask), | - | ||||||
208 | (pixel & green_mask) >> green_shift, | - | ||||||
209 | (pixel & red_mask) >> red_shift); | - | ||||||
210 | } | - | ||||||
211 | #endif | - | ||||||
212 | return QColor((pixel & red_mask) >> red_shift, never executed: return QColor((pixel & red_mask) >> red_shift, (pixel & green_mask) >> green_shift, (pixel & blue_mask)); | 0 | ||||||
213 | (pixel & green_mask) >> green_shift, never executed: return QColor((pixel & red_mask) >> red_shift, (pixel & green_mask) >> green_shift, (pixel & blue_mask)); | 0 | ||||||
214 | (pixel & blue_mask)); never executed: return QColor((pixel & red_mask) >> red_shift, (pixel & green_mask) >> green_shift, (pixel & blue_mask)); | 0 | ||||||
215 | } | - | ||||||
216 | #if 0 // XXX | - | ||||||
217 | Q_ASSERT_X(int(pixel) < qt_screen->numCols(), "QColormap::colorAt", "pixel out of bounds of palette"); | - | ||||||
218 | return QColor(qt_screen->clut()[pixel]); | - | ||||||
219 | #endif | - | ||||||
220 | return QColor(); never executed: return QColor(); | 0 | ||||||
221 | } | - | ||||||
222 | - | |||||||
223 | const QVector<QColor> QColormap::colormap() const | - | ||||||
224 | { | - | ||||||
225 | return QVector<QColor>(); never executed: return QVector<QColor>(); | 0 | ||||||
226 | } | - | ||||||
227 | - | |||||||
228 | QColormap &QColormap::operator=(const QColormap &colormap) | - | ||||||
229 | { never executed: qAtomicAssign(d, colormap.d); return *this; }return *this; never executed: return *this; | 0 | ||||||
230 | - | |||||||
231 | QT_END_NAMESPACE | - | ||||||
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