qpixmap_raster.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2015 The Qt Company Ltd.-
4** Contact: http://www.qt.io/licensing/-
5**-
6** This file is part of the QtGui module of the Qt Toolkit.-
7**-
8** $QT_BEGIN_LICENSE:LGPL21$-
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15** information use the contact form at http://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 2.1 or version 3 as published by the Free-
20** Software Foundation and appearing in the file LICENSE.LGPLv21 and-
21** LICENSE.LGPLv3 included in the packaging of this file. Please review the-
22** following information to ensure the GNU Lesser General Public License-
23** requirements will be met: https://www.gnu.org/licenses/lgpl.html and-
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25**-
26** As a special exception, The Qt Company gives you certain additional-
27** rights. These rights are described in The Qt Company LGPL Exception-
28** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.-
29**-
30** $QT_END_LICENSE$-
31**-
32****************************************************************************/-
33-
34#include "qpixmap.h"-
35-
36#include <private/qfont_p.h>-
37-
38#include "qpixmap_raster_p.h"-
39#include "qnativeimage_p.h"-
40#include "qimage_p.h"-
41#include "qpaintengine.h"-
42-
43#include "qbitmap.h"-
44#include "qimage.h"-
45#include <QBuffer>-
46#include <QImageReader>-
47#include <private/qimage_p.h>-
48#include <private/qsimd_p.h>-
49#include <private/qdrawhelper_p.h>-
50-
51QT_BEGIN_NAMESPACE-
52-
53QPixmap qt_toRasterPixmap(const QImage &image)-
54{-
55 QPlatformPixmap *data =-
56 new QRasterPlatformPixmap(image.depth() == 1-
57 ? QPlatformPixmap::BitmapType-
58 : QPlatformPixmap::PixmapType);-
59-
60 data->fromImage(image, Qt::AutoColor);-
61-
62 return QPixmap(data);
never executed: return QPixmap(data);
0
63}-
64-
65QPixmap qt_toRasterPixmap(const QPixmap &pixmap)-
66{-
67 if (pixmap.isNull())
pixmap.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
68 return QPixmap();
never executed: return QPixmap();
0
69-
70 if (QPixmap(pixmap).data_ptr()->classId() == QPlatformPixmap::RasterClass)
QPixmap(pixmap...p::RasterClassDescription
TRUEnever evaluated
FALSEnever evaluated
0
71 return pixmap;
never executed: return pixmap;
0
72-
73 return qt_toRasterPixmap(pixmap.toImage());
never executed: return qt_toRasterPixmap(pixmap.toImage());
0
74}-
75-
76QRasterPlatformPixmap::QRasterPlatformPixmap(PixelType type)-
77 : QPlatformPixmap(type, RasterClass)-
78{-
79}
never executed: end of block
0
80-
81QRasterPlatformPixmap::~QRasterPlatformPixmap()-
82{-
83}-
84-
85QPlatformPixmap *QRasterPlatformPixmap::createCompatiblePlatformPixmap() const-
86{-
87 return new QRasterPlatformPixmap(pixelType());
never executed: return new QRasterPlatformPixmap(pixelType());
0
88}-
89-
90void QRasterPlatformPixmap::resize(int width, int height)-
91{-
92 QImage::Format format;-
93 if (pixelType() == BitmapType)
pixelType() == BitmapTypeDescription
TRUEnever evaluated
FALSEnever evaluated
0
94 format = QImage::Format_MonoLSB;
never executed: format = QImage::Format_MonoLSB;
0
95 else-
96 format = QNativeImage::systemFormat();
never executed: format = QNativeImage::systemFormat();
0
97-
98 image = QImage(width, height, format);-
99 w = width;-
100 h = height;-
101 d = image.depth();-
102 is_null = (w <= 0 || h <= 0);
w <= 0Description
TRUEnever evaluated
FALSEnever evaluated
h <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
103-
104 if (pixelType() == BitmapType && !image.isNull()) {
pixelType() == BitmapTypeDescription
TRUEnever evaluated
FALSEnever evaluated
!image.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
105 image.setColorCount(2);-
106 image.setColor(0, QColor(Qt::color0).rgba());-
107 image.setColor(1, QColor(Qt::color1).rgba());-
108 }
never executed: end of block
0
109-
110 setSerialNumber(image.cacheKey() >> 32);-
111}
never executed: end of block
0
112-
113bool QRasterPlatformPixmap::fromData(const uchar *buffer, uint len, const char *format,-
114 Qt::ImageConversionFlags flags)-
115{-
116 QByteArray a = QByteArray::fromRawData(reinterpret_cast<const char *>(buffer), len);-
117 QBuffer b(&a);-
118 b.open(QIODevice::ReadOnly);-
119 QImage image = QImageReader(&b, format).read();-
120 if (image.isNull())
image.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
121 return false;
never executed: return false;
0
122-
123 createPixmapForImage(image, flags, /* inplace = */true);-
124 return !isNull();
never executed: return !isNull();
0
125}-
126-
127void QRasterPlatformPixmap::fromImage(const QImage &sourceImage,-
128 Qt::ImageConversionFlags flags)-
129{-
130 QImage image = sourceImage;-
131 createPixmapForImage(image, flags, /* inplace = */false);-
132}
never executed: end of block
0
133-
134void QRasterPlatformPixmap::fromImageInPlace(QImage &sourceImage,-
135 Qt::ImageConversionFlags flags)-
136{-
137 createPixmapForImage(sourceImage, flags, /* inplace = */true);-
138}
never executed: end of block
0
139-
140void QRasterPlatformPixmap::fromImageReader(QImageReader *imageReader,-
141 Qt::ImageConversionFlags flags)-
142{-
143 Q_UNUSED(flags);-
144 QImage image = imageReader->read();-
145 if (image.isNull())
image.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
146 return;
never executed: return;
0
147-
148 createPixmapForImage(image, flags, /* inplace = */true);-
149}
never executed: end of block
0
150-
151// from qbackingstore.cpp-
152extern void qt_scrollRectInImage(QImage &img, const QRect &rect, const QPoint &offset);-
153-
154void QRasterPlatformPixmap::copy(const QPlatformPixmap *data, const QRect &rect)-
155{-
156 fromImage(data->toImage(rect).copy(), Qt::NoOpaqueDetection);-
157}
never executed: end of block
0
158-
159bool QRasterPlatformPixmap::scroll(int dx, int dy, const QRect &rect)-
160{-
161 if (!image.isNull())
!image.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
162 qt_scrollRectInImage(image, rect, QPoint(dx, dy));
never executed: qt_scrollRectInImage(image, rect, QPoint(dx, dy));
0
163 return true;
never executed: return true;
0
164}-
165-
166void QRasterPlatformPixmap::fill(const QColor &color)-
167{-
168 uint pixel;-
169-
170 if (image.depth() == 1) {
image.depth() == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
171 int gray = qGray(color.rgba());-
172 // Pick the best approximate color in the image's colortable.-
173 if (qAbs(qGray(image.color(0)) - gray) < qAbs(qGray(image.color(1)) - gray))
qAbs(qGray(ima...or(1)) - gray)Description
TRUEnever evaluated
FALSEnever evaluated
0
174 pixel = 0;
never executed: pixel = 0;
0
175 else-
176 pixel = 1;
never executed: pixel = 1;
0
177 } else if (image.depth() >= 15) {
image.depth() >= 15Description
TRUEnever evaluated
FALSEnever evaluated
0
178 int alpha = color.alpha();-
179 if (alpha != 255) {
alpha != 255Description
TRUEnever evaluated
FALSEnever evaluated
0
180 if (!image.hasAlphaChannel()) {
!image.hasAlphaChannel()Description
TRUEnever evaluated
FALSEnever evaluated
0
181 QImage::Format toFormat = qt_alphaVersionForPainting(image.format());-
182 if (!image.isNull() && qt_depthForFormat(image.format()) == qt_depthForFormat(toFormat)) {
!image.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
qt_depthForFor...rmat(toFormat)Description
TRUEnever evaluated
FALSEnever evaluated
0
183 image.detach();-
184 image.d->format = toFormat;-
185 } else {
never executed: end of block
0
186 image = QImage(image.width(), image.height(), toFormat);-
187 }
never executed: end of block
0
188 }-
189 }
never executed: end of block
0
190 pixel = qPremultiply(color.rgba());-
191 const QPixelLayout *layout = &qPixelLayouts[image.format()];-
192 layout->convertFromARGB32PM(&pixel, &pixel, 1, layout, 0);-
193 } else if (image.format() == QImage::Format_Alpha8) {
never executed: end of block
image.format()...:Format_Alpha8Description
TRUEnever evaluated
FALSEnever evaluated
0
194 pixel = qAlpha(color.rgba());-
195 } else if (image.format() == QImage::Format_Grayscale8) {
never executed: end of block
image.format()...mat_Grayscale8Description
TRUEnever evaluated
FALSEnever evaluated
0
196 pixel = qGray(color.rgba());-
197 } else
never executed: end of block
0
198 {-
199 pixel = 0;-
200 // ### what about 8 bit indexed?-
201 }
never executed: end of block
0
202-
203 image.fill(pixel);-
204}
never executed: end of block
0
205-
206bool QRasterPlatformPixmap::hasAlphaChannel() const-
207{-
208 return image.hasAlphaChannel();
never executed: return image.hasAlphaChannel();
0
209}-
210-
211QImage QRasterPlatformPixmap::toImage() const-
212{-
213 if (!image.isNull()) {
!image.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
214 QImageData *data = const_cast<QImage &>(image).data_ptr();-
215 if (data->paintEngine && data->paintEngine->isActive()
data->paintEngineDescription
TRUEnever evaluated
FALSEnever evaluated
data->paintEngine->isActive()Description
TRUEnever evaluated
FALSEnever evaluated
0
216 && data->paintEngine->paintDevice() == &image)
data->paintEng...ce() == &imageDescription
TRUEnever evaluated
FALSEnever evaluated
0
217 {-
218 return image.copy();
never executed: return image.copy();
0
219 }-
220 }
never executed: end of block
0
221-
222 return image;
never executed: return image;
0
223}-
224-
225QImage QRasterPlatformPixmap::toImage(const QRect &rect) const-
226{-
227 if (rect.isNull())
rect.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
228 return image;
never executed: return image;
0
229-
230 QRect clipped = rect.intersected(QRect(0, 0, w, h));-
231 const uint du = uint(d);-
232 if ((du % 8 == 0) && (((uint(clipped.x()) * du)) % 32 == 0)) {
(du % 8 == 0)Description
TRUEnever evaluated
FALSEnever evaluated
(((uint(clippe...u)) % 32 == 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
233 QImage newImage(image.scanLine(clipped.y()) + clipped.x() * (du / 8),-
234 clipped.width(), clipped.height(),-
235 image.bytesPerLine(), image.format());-
236 newImage.setDevicePixelRatio(image.devicePixelRatio());-
237 return newImage;
never executed: return newImage;
0
238 } else {-
239 return image.copy(clipped);
never executed: return image.copy(clipped);
0
240 }-
241}-
242-
243QPaintEngine* QRasterPlatformPixmap::paintEngine() const-
244{-
245 return image.paintEngine();
never executed: return image.paintEngine();
0
246}-
247-
248int QRasterPlatformPixmap::metric(QPaintDevice::PaintDeviceMetric metric) const-
249{-
250 QImageData *d = image.d;-
251 if (!d)
!dDescription
TRUEnever evaluated
FALSEnever evaluated
0
252 return 0;
never executed: return 0;
0
253-
254 // override the image dpi with the screen dpi when rendering to a pixmap-
255 switch (metric) {-
256 case QPaintDevice::PdmWidth:
never executed: case QPaintDevice::PdmWidth:
0
257 return w;
never executed: return w;
0
258 case QPaintDevice::PdmHeight:
never executed: case QPaintDevice::PdmHeight:
0
259 return h;
never executed: return h;
0
260 case QPaintDevice::PdmWidthMM:
never executed: case QPaintDevice::PdmWidthMM:
0
261 return qRound(d->width * 25.4 / qt_defaultDpiX());
never executed: return qRound(d->width * 25.4 / qt_defaultDpiX());
0
262 case QPaintDevice::PdmHeightMM:
never executed: case QPaintDevice::PdmHeightMM:
0
263 return qRound(d->height * 25.4 / qt_defaultDpiY());
never executed: return qRound(d->height * 25.4 / qt_defaultDpiY());
0
264 case QPaintDevice::PdmNumColors:
never executed: case QPaintDevice::PdmNumColors:
0
265 return d->colortable.size();
never executed: return d->colortable.size();
0
266 case QPaintDevice::PdmDepth:
never executed: case QPaintDevice::PdmDepth:
0
267 return this->d;
never executed: return this->d;
0
268 case QPaintDevice::PdmDpiX:
never executed: case QPaintDevice::PdmDpiX:
0
269 return qt_defaultDpiX();
never executed: return qt_defaultDpiX();
0
270 case QPaintDevice::PdmPhysicalDpiX:
never executed: case QPaintDevice::PdmPhysicalDpiX:
0
271 return qt_defaultDpiX();
never executed: return qt_defaultDpiX();
0
272 case QPaintDevice::PdmDpiY:
never executed: case QPaintDevice::PdmDpiY:
0
273 return qt_defaultDpiX();
never executed: return qt_defaultDpiX();
0
274 case QPaintDevice::PdmPhysicalDpiY:
never executed: case QPaintDevice::PdmPhysicalDpiY:
0
275 return qt_defaultDpiY();
never executed: return qt_defaultDpiY();
0
276 case QPaintDevice::PdmDevicePixelRatio:
never executed: case QPaintDevice::PdmDevicePixelRatio:
0
277 return image.devicePixelRatio();
never executed: return image.devicePixelRatio();
0
278 case QPaintDevice::PdmDevicePixelRatioScaled:
never executed: case QPaintDevice::PdmDevicePixelRatioScaled:
0
279 return image.devicePixelRatio() * QPaintDevice::devicePixelRatioFScale();
never executed: return image.devicePixelRatio() * QPaintDevice::devicePixelRatioFScale();
0
280-
281 default:
never executed: default:
0
282 qWarning("QRasterPlatformPixmap::metric(): Unhandled metric type %d", metric);-
283 break;
never executed: break;
0
284 }-
285-
286 return 0;
never executed: return 0;
0
287}-
288-
289void QRasterPlatformPixmap::createPixmapForImage(QImage &sourceImage, Qt::ImageConversionFlags flags, bool inPlace)-
290{-
291 QImage::Format format;-
292 if (flags & Qt::NoFormatConversion)
flags & Qt::NoFormatConversionDescription
TRUEnever evaluated
FALSEnever evaluated
0
293 format = sourceImage.format();
never executed: format = sourceImage.format();
0
294 else-
295 if (pixelType() == BitmapType) {
pixelType() == BitmapTypeDescription
TRUEnever evaluated
FALSEnever evaluated
0
296 format = QImage::Format_MonoLSB;-
297 } else {
never executed: end of block
0
298 if (sourceImage.depth() == 1) {
sourceImage.depth() == 1Description
TRUEnever evaluated
FALSEnever evaluated
0
299 format = sourceImage.hasAlphaChannel()
sourceImage.hasAlphaChannel()Description
TRUEnever evaluated
FALSEnever evaluated
0
300 ? QImage::Format_ARGB32_Premultiplied-
301 : QImage::Format_RGB32;-
302 } else {
never executed: end of block
0
303 QImage::Format opaqueFormat = QNativeImage::systemFormat();-
304 QImage::Format alphaFormat = qt_alphaVersionForPainting(opaqueFormat);-
305-
306 if (!sourceImage.hasAlphaChannel()) {
!sourceImage.hasAlphaChannel()Description
TRUEnever evaluated
FALSEnever evaluated
0
307 format = opaqueFormat;-
308 } else if ((flags & Qt::NoOpaqueDetection) == 0
never executed: end of block
(flags & Qt::N...etection) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
309 && !const_cast<QImage &>(sourceImage).data_ptr()->checkForAlphaPixels())
!const_cast<QI...rAlphaPixels()Description
TRUEnever evaluated
FALSEnever evaluated
0
310 {-
311 format = opaqueFormat;-
312 } else {
never executed: end of block
0
313 format = alphaFormat;-
314 }
never executed: end of block
0
315 }-
316 }-
317-
318 // image has alpha format but is really opaque, so try to do a-
319 // more efficient conversion-
320 if (format == QImage::Format_RGB32 && (sourceImage.format() == QImage::Format_ARGB32
format == QImage::Format_RGB32Description
TRUEnever evaluated
FALSEnever evaluated
sourceImage.fo...:Format_ARGB32Description
TRUEnever evaluated
FALSEnever evaluated
0
321 || sourceImage.format() == QImage::Format_ARGB32_Premultiplied))
sourceImage.fo..._PremultipliedDescription
TRUEnever evaluated
FALSEnever evaluated
0
322 {-
323 inPlace = inPlace && sourceImage.isDetached();
inPlaceDescription
TRUEnever evaluated
FALSEnever evaluated
sourceImage.isDetached()Description
TRUEnever evaluated
FALSEnever evaluated
0
324 image = sourceImage;-
325 if (!inPlace)
!inPlaceDescription
TRUEnever evaluated
FALSEnever evaluated
0
326 image.detach();
never executed: image.detach();
0
327 if (image.d)
image.dDescription
TRUEnever evaluated
FALSEnever evaluated
0
328 image.d->format = QImage::Format_RGB32;
never executed: image.d->format = QImage::Format_RGB32;
0
329 } else if (inPlace && sourceImage.d->convertInPlace(format, flags)) {
never executed: end of block
inPlaceDescription
TRUEnever evaluated
FALSEnever evaluated
sourceImage.d-...format, flags)Description
TRUEnever evaluated
FALSEnever evaluated
0
330 image = sourceImage;-
331 } else {
never executed: end of block
0
332 image = sourceImage.convertToFormat(format);-
333 }
never executed: end of block
0
334-
335 if (image.d) {
image.dDescription
TRUEnever evaluated
FALSEnever evaluated
0
336 w = image.d->width;-
337 h = image.d->height;-
338 d = image.d->depth;-
339 } else {
never executed: end of block
0
340 w = h = d = 0;-
341 }
never executed: end of block
0
342 is_null = (w <= 0 || h <= 0);
w <= 0Description
TRUEnever evaluated
FALSEnever evaluated
h <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
343-
344 if (image.d)
image.dDescription
TRUEnever evaluated
FALSEnever evaluated
0
345 image.d->devicePixelRatio = sourceImage.devicePixelRatio();
never executed: image.d->devicePixelRatio = sourceImage.devicePixelRatio();
0
346 //ensure the pixmap and the image resulting from toImage() have the same cacheKey();-
347 setSerialNumber(image.cacheKey() >> 32);-
348 if (image.d)
image.dDescription
TRUEnever evaluated
FALSEnever evaluated
0
349 setDetachNumber(image.d->detach_no);
never executed: setDetachNumber(image.d->detach_no);
0
350}
never executed: end of block
0
351-
352QImage* QRasterPlatformPixmap::buffer()-
353{-
354 return &image;
never executed: return &image;
0
355}-
356-
357qreal QRasterPlatformPixmap::devicePixelRatio() const-
358{-
359 return image.devicePixelRatio();
never executed: return image.devicePixelRatio();
0
360}-
361-
362void QRasterPlatformPixmap::setDevicePixelRatio(qreal scaleFactor)-
363{-
364 image.setDevicePixelRatio(scaleFactor);-
365}
never executed: end of block
0
366-
367QT_END_NAMESPACE-
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