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
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281 | /* ============================================================
*
* This file is a part of digiKam project
* https://www.digikam.org
*
* Date : 2005-06-14
* Description : digiKam 8/16 bits image management API.
* QPixmap accessors.
*
* SPDX-FileCopyrightText: 2005-2025 by Gilles Caulier <caulier dot gilles at gmail dot com>
* SPDX-FileCopyrightText: 2006-2013 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* ============================================================ */
#include "dimg_p.h"
namespace Digikam
{
class Q_DECL_HIDDEN PixmapPaintEngineDetector
{
public:
PixmapPaintEngineDetector()
: m_isRaster(detectRasterFromPixmap())
{
}
bool isRaster() const
{
return m_isRaster;
}
private:
static bool detectRasterFromPixmap()
{
QPixmap pix(1, 1);
QPainter p(&pix);
return (p.paintEngine() && (p.paintEngine()->type() == QPaintEngine::Raster));
}
const bool m_isRaster;
};
Q_GLOBAL_STATIC(PixmapPaintEngineDetector, pixmapPaintEngineDetector)
// --------------------------------------------------------------------------------------
QPixmap DImg::convertToPixmap() const
{
if (isNull())
{
return QPixmap();
}
if (sixteenBit())
{
// make faster...
return QPixmap::fromImage(copyQImage(0, 0, width(), height()));
}
if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
{
QImage img(width(), height(), hasAlpha() ? QImage::Format_ARGB32 : QImage::Format_RGB32);
uchar* sptr = bits();
uint* dptr = reinterpret_cast<uint*>(img.bits());
uint dim = width() * height();
for (uint i = 0 ; i < dim ; ++i)
{
*dptr++ = qRgba(sptr[2], sptr[1], sptr[0], sptr[3]);
sptr += 4;
}
// alpha channel is auto-detected during QImage->QPixmap conversion
return QPixmap::fromImage(img);
}
else
{
// This is a temporary image operating on the DImg buffer
QImage img(bits(), width(), height(), hasAlpha() ? QImage::Format_ARGB32 : QImage::Format_RGB32);
// For paint engines which base the QPixmap internally on a QImage, we must use a persistent QImage
if (pixmapPaintEngineDetector->isRaster())
{
img = img.copy();
}
// alpha channel is auto-detected during QImage->QPixmap conversion
return QPixmap::fromImage(img);
}
}
QPixmap DImg::convertToPixmap(IccTransform& monitorICCtrans) const
{
if (isNull())
{
return QPixmap();
}
if (monitorICCtrans.outputProfile().isNull())
{
return convertToPixmap();
}
DImg img = copy();
monitorICCtrans.apply(img);
return (img.convertToPixmap());
}
QImage DImg::pureColorMask(ExposureSettingsContainer* const expoSettings) const
{
if (isNull() || (!expoSettings->underExposureIndicator && !expoSettings->overExposureIndicator))
{
return QImage();
}
QImage img(size(), QImage::Format_ARGB32);
img.fill(0x00000000); // Full transparent.
// NOTE: Qt4 do not provide anymore QImage::setAlphaChannel() because
// alpha channel is auto-detected during QImage->QPixmap conversion
uchar* bits = img.bits();<--- Shadow variable
// NOTE: Using DImgScale before to compute Mask clamp to 65534 | 254. Why ?
int max = lround(sixteenBit() ? 65535.0 - (65535.0 * expoSettings->overExposurePercent / 100.0)
: 255.0 - (255.0 * expoSettings->overExposurePercent / 100.0));
int min = lround(sixteenBit() ? 0.0 + (65535.0 * expoSettings->underExposurePercent / 100.0)
: 0.0 + (255.0 * expoSettings->underExposurePercent / 100.0));
// --------------------------------------------------------
// caching
int u_red = expoSettings->underExposureColor.red();
int u_green = expoSettings->underExposureColor.green();
int u_blue = expoSettings->underExposureColor.blue();
int o_red = expoSettings->overExposureColor.red();
int o_green = expoSettings->overExposureColor.green();
int o_blue = expoSettings->overExposureColor.blue();
bool under = expoSettings->underExposureIndicator;
bool over = expoSettings->overExposureIndicator;
bool pure = expoSettings->exposureIndicatorMode;
// --------------------------------------------------------
uint dim = m_priv->width * m_priv->height;
uchar* dptr = bits;
int s_blue, s_green, s_red;
bool match = false;
if (sixteenBit())
{
unsigned short* sptr = reinterpret_cast<unsigned short*>(m_priv->data);
for (uint i = 0 ; i < dim ; ++i)
{
s_blue = *sptr++;
s_green = *sptr++;
s_red = *sptr++;
sptr++;
match = pure ? (s_red <= min) && (s_green <= min) && (s_blue <= min)
: (s_red <= min) || (s_green <= min) || (s_blue <= min);
if (under && match)
{
if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
{
dptr[0] = 0xFF;
dptr[1] = u_red;
dptr[2] = u_green;
dptr[3] = u_blue;
}
else
{
dptr[0] = u_blue;
dptr[1] = u_green;
dptr[2] = u_red;
dptr[3] = 0xFF;
}
}
match = pure ? (s_red >= max) && (s_green >= max) && (s_blue >= max)
: (s_red >= max) || (s_green >= max) || (s_blue >= max);
if (over && match)
{
if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
{
dptr[0] = 0xFF;
dptr[1] = o_red;
dptr[2] = o_green;
dptr[3] = o_blue;
}
else
{
dptr[0] = o_blue;
dptr[1] = o_green;
dptr[2] = o_red;
dptr[3] = 0xFF;
}
}
dptr += 4;
}
}
else
{
uchar* sptr = m_priv->data;
for (uint i = 0 ; i < dim ; ++i)
{
s_blue = *sptr++;
s_green = *sptr++;
s_red = *sptr++;
sptr++;
match = pure ? (s_red <= min) && (s_green <= min) && (s_blue <= min)
: (s_red <= min) || (s_green <= min) || (s_blue <= min);
if (under && match)
{
if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
{
dptr[0] = 0xFF;
dptr[1] = u_red;
dptr[2] = u_green;
dptr[3] = u_blue;
}
else
{
dptr[0] = u_blue;
dptr[1] = u_green;
dptr[2] = u_red;
dptr[3] = 0xFF;
}
}
match = pure ? (s_red >= max) && (s_green >= max) && (s_blue >= max)
: (s_red >= max) || (s_green >= max) || (s_blue >= max);
if (over && match)
{
if (QSysInfo::ByteOrder == QSysInfo::BigEndian)
{
dptr[0] = 0xFF;
dptr[1] = o_red;
dptr[2] = o_green;
dptr[3] = o_blue;
}
else
{
dptr[0] = o_blue;
dptr[1] = o_green;
dptr[2] = o_red;
dptr[3] = 0xFF;
}
}
dptr += 4;
}
}
return img;
}
} // namespace Digikam
|