image/qpixmap_raster.cpp

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LineSource CodeCoverage
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7 -
8QPixmap qt_toRasterPixmap(const QImage &image) -
9{ -
10 QPlatformPixmap *data = -
11 new QRasterPlatformPixmap(image.depth() == 1 -
12 ? QPlatformPixmap::BitmapType -
13 : QPlatformPixmap::PixmapType); -
14 -
15 data->fromImage(image, Qt::AutoColor); -
16 -
17 return QPixmap(data);
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18} -
19 -
20QPixmap qt_toRasterPixmap(const QPixmap &pixmap) -
21{ -
22 if (pixmap.isNull())
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23 return QPixmap();
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24 -
25 if (QPixmap(pixmap).data_ptr()->classId() == QPlatformPixmap::RasterClass)
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26 return pixmap;
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27 -
28 return qt_toRasterPixmap(pixmap.toImage());
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29} -
30 -
31QRasterPlatformPixmap::QRasterPlatformPixmap(PixelType type) -
32 : QPlatformPixmap(type, RasterClass) -
33{ -
34}
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35 -
36QRasterPlatformPixmap::~QRasterPlatformPixmap() -
37{ -
38} -
39 -
40QPlatformPixmap *QRasterPlatformPixmap::createCompatiblePlatformPixmap() const -
41{ -
42 return new QRasterPlatformPixmap(pixelType());
-
43} -
44 -
45void QRasterPlatformPixmap::resize(int width, int height) -
46{ -
47 QImage::Format format; -
48 if (pixelType() == BitmapType)
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49 format = QImage::Format_MonoLSB;
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50 else -
51 format = QNativeImage::systemFormat();
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52 -
53 image = QImage(width, height, format); -
54 w = width; -
55 h = height; -
56 d = image.depth(); -
57 is_null = (w <= 0 || h <= 0);
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58 -
59 if (pixelType() == BitmapType && !image.isNull()) {
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60 image.setColorCount(2); -
61 image.setColor(0, QColor(Qt::color0).rgba()); -
62 image.setColor(1, QColor(Qt::color1).rgba()); -
63 }
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64 -
65 setSerialNumber(image.cacheKey() >> 32); -
66}
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67 -
68bool QRasterPlatformPixmap::fromData(const uchar *buffer, uint len, const char *format, -
69 Qt::ImageConversionFlags flags) -
70{ -
71 QByteArray a = QByteArray::fromRawData(reinterpret_cast<const char *>(buffer), len); -
72 QBuffer b(&a); -
73 b.open(QIODevice::ReadOnly); -
74 QImage image = QImageReader(&b, format).read(); -
75 if (image.isNull())
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76 return false;
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77 -
78 createPixmapForImage(image, flags, true); -
79 return !isNull();
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80} -
81 -
82void QRasterPlatformPixmap::fromImage(const QImage &sourceImage, -
83 Qt::ImageConversionFlags flags) -
84{ -
85 (void)flags;; -
86 QImage image = sourceImage; -
87 createPixmapForImage(image, flags, false); -
88}
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89 -
90void QRasterPlatformPixmap::fromImageReader(QImageReader *imageReader, -
91 Qt::ImageConversionFlags flags) -
92{ -
93 (void)flags;; -
94 QImage image = imageReader->read(); -
95 if (image.isNull())
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96 return;
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97 -
98 createPixmapForImage(image, flags, true); -
99}
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100 -
101 -
102extern void qt_scrollRectInImage(QImage &img, const QRect &rect, const QPoint &offset); -
103 -
104void QRasterPlatformPixmap::copy(const QPlatformPixmap *data, const QRect &rect) -
105{ -
106 fromImage(data->toImage(rect).copy(), Qt::NoOpaqueDetection); -
107}
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108 -
109bool QRasterPlatformPixmap::scroll(int dx, int dy, const QRect &rect) -
110{ -
111 if (!image.isNull())
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112 qt_scrollRectInImage(image, rect, QPoint(dx, dy));
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113 return true;
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114} -
115 -
116void QRasterPlatformPixmap::fill(const QColor &color) -
117{ -
118 uint pixel; -
119 -
120 if (image.depth() == 1) {
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121 int gray = qGray(color.rgba()); -
122 -
123 if (qAbs(qGray(image.color(0)) - gray) < qAbs(qGray(image.color(1)) - gray))
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124 pixel = 0;
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125 else -
126 pixel = 1;
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127 } else if (image.depth() >= 15) {
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128 int alpha = color.alpha(); -
129 if (alpha != 255) {
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130 if (!image.hasAlphaChannel()) {
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131 QImage::Format toFormat; -
132 toFormat = QImage::Format_ARGB32_Premultiplied; -
133 -
134 if (!image.isNull() && qt_depthForFormat(image.format()) == qt_depthForFormat(toFormat)) {
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135 image.detach(); -
136 image.d->format = toFormat; -
137 } else {
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138 image = QImage(image.width(), image.height(), toFormat); -
139 }
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140 } -
141 }
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142 pixel = PREMUL(color.rgba()); -
143 const QPixelLayout *layout = &qPixelLayouts[image.format()]; -
144 layout->convertFromARGB32PM(&pixel, &pixel, 1, layout, 0); -
145 } else {
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146 pixel = 0; -
147 -
148 }
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149 -
150 image.fill(pixel); -
151}
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152 -
153bool QRasterPlatformPixmap::hasAlphaChannel() const -
154{ -
155 return image.hasAlphaChannel();
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156} -
157 -
158QImage QRasterPlatformPixmap::toImage() const -
159{ -
160 if (!image.isNull()) {
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161 QImageData *data = const_cast<QImage &>(image).data_ptr(); -
162 if (data->paintEngine && data->paintEngine->isActive()
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163 && data->paintEngine->paintDevice() == &image)
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164 { -
165 return image.copy();
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166 } -
167 }
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168 -
169 return image;
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170} -
171 -
172QImage QRasterPlatformPixmap::toImage(const QRect &rect) const -
173{ -
174 if (rect.isNull())
partially evaluated: rect.isNull()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:55
0-55
175 return image;
never executed: return image;
0
176 -
177 QRect clipped = rect.intersected(QRect(0, 0, w, h)); -
178 ifconst uint du = uint(d); -
179 if ((du % 8 == 0) && (((uint(clipped.x()) * du)) % 32 == 0))
evaluated: (du % 8 == 0)
TRUEFALSE
yes
Evaluation Count:54
yes
Evaluation Count:1
evaluated: (((uint(clipped.x()) * du)) % 32 == 0)
TRUEFALSE
yes
Evaluation Count:53
yes
Evaluation Count:1
1-54
180 return QImage(image.scanLine(clipped.y()) + clipped.x() * (ddu / 8), 53
181 clipped.width(), clipped.height(), 53
182 image.bytesPerLine(), image.format());
executed: return QImage(image.scanLine(clipped.y()) + clipped.x() * (du / 8), clipped.width(), clipped.height(), image.bytesPerLine(), image.format());
Execution Count:53
53
183 else -
184 return image.copy(clipped);
executed: return image.copy(clipped);
Execution Count:2
2
185} -
186 -
187QPaintEngine* QRasterPlatformPixmap::paintEngine() const -
188{ -
189 return image.paintEngine();
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190} -
191 -
192int QRasterPlatformPixmap::metric(QPaintDevice::PaintDeviceMetric metric) const -
193{ -
194 QImageData *d = image.d; -
195 if (!d)
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196 return 0;
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197 -
198 -
199 switch (metric) { -
200 case QPaintDevice::PdmWidth: -
201 return w;
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202 case QPaintDevice::PdmHeight: -
203 return h;
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204 case QPaintDevice::PdmWidthMM: -
205 return qRound(d->width * 25.4 / qt_defaultDpiX());
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206 case QPaintDevice::PdmHeightMM: -
207 return qRound(d->height * 25.4 / qt_defaultDpiY());
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208 case QPaintDevice::PdmNumColors: -
209 return d->colortable.size();
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210 case QPaintDevice::PdmDepth: -
211 return this->d;
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212 case QPaintDevice::PdmDpiX: -
213 return qt_defaultDpiX();
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214 case QPaintDevice::PdmPhysicalDpiX: -
215 return qt_defaultDpiX() * image.devicePixelRatio();
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216 case QPaintDevice::PdmDpiY: -
217 return qt_defaultDpiX();
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218 case QPaintDevice::PdmPhysicalDpiY: -
219 return qt_defaultDpiY() * image.devicePixelRatio();
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220 default: -
221 QMessageLogger("image/qpixmap_raster.cpp", 284285, __PRETTY_FUNCTION__).warning("QRasterPlatformPixmap::metric(): Unhandled metric type %d", metric); -
222 break;
-
223 } -
224 -
225 return 0;
-
226} -
227 -
228void QRasterPlatformPixmap::createPixmapForImage(QImage &sourceImage, Qt::ImageConversionFlags flags, bool inPlace) -
229{ -
230 QImage::Format format; -
231 if (flags & Qt::NoFormatConversion)
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232 format = sourceImage.format();
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233 else -
234 if (pixelType() == BitmapType) {
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235 format = QImage::Format_MonoLSB; -
236 } else {
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237 if (sourceImage.depth() == 1) {
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238 format = sourceImage.hasAlphaChannel()
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239 ? QImage::Format_ARGB32_Premultiplied -
240 : QImage::Format_RGB32; -
241 } else {
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242 QImage::Format opaqueFormat = QNativeImage::systemFormat(); -
243 QImage::Format alphaFormat = QImage::Format_ARGB32_Premultiplied; -
244 if (!sourceImage.hasAlphaChannel()) {
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245 format = opaqueFormat; -
246 } else if ((flags & Qt::NoOpaqueDetection) == 0
-
247 && !const_cast<QImage &>(sourceImage).data_ptr()->checkForAlphaPixels())
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248 { -
249 format = opaqueFormat; -
250 } else {
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251 format = alphaFormat; -
252 }
-
253 } -
254 } -
255 -
256 -
257 -
258 if (format == QImage::Format_RGB32 && (sourceImage.format() == QImage::Format_ARGB32
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259 || sourceImage.format() == QImage::Format_ARGB32_Premultiplied))
-
260 { -
261 image = sourceImage; -
262 if (!inPlace)
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263 image.detach();
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264 if (image.d)
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265 image.d->format = QImage::Format_RGB32;
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266 } else if (inPlace && sourceImage.d->convertInPlace(format, flags)) {
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267 image = sourceImage; -
268 } else {
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269 image = sourceImage.convertToFormat(format); -
270 }
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271 -
272 if (image.d) {
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273 w = image.d->width; -
274 h = image.d->height; -
275 d = image.d->depth; -
276 } else {
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277 w = h = d = 0; -
278 }
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279 is_null = (w <= 0 || h <= 0);
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280 -
281 image.d->devicePixelRatio = sourceImage.devicePixelRatio(); -
282 setSerialNumber(image.cacheKey() >> 32); -
283}
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284 -
285QImage* QRasterPlatformPixmap::buffer() -
286{ -
287 return &image;
-
288} -
289 -
290qreal QRasterPlatformPixmap::devicePixelRatio() const -
291{ -
292 return image.devicePixelRatio();
-
293} -
294 -
295void QRasterPlatformPixmap::setDevicePixelRatio(qreal scaleFactor) -
296{ -
297 image.setDevicePixelRatio(scaleFactor); -
298}
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299 -
300 -
301 -
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