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src/PlatformBackends/X11ImageGrabber.cpp
| Show First 20 Lines • Show All 188 Lines • ▼ Show 20 Line(s) | 187 | case 32: | |||
|---|---|---|---|---|---|
| 189 | break; | 189 | break; | ||
| 190 | default: | 190 | default: | ||
| 191 | return QPixmap(); // we don't know | 191 | return QPixmap(); // we don't know | ||
| 192 | } | 192 | } | ||
| 193 | 193 | | |||
| 194 | // The RGB32 format requires data format 0xffRRGGBB, ensure that this fourth byte really is 0xff | 194 | // The RGB32 format requires data format 0xffRRGGBB, ensure that this fourth byte really is 0xff | ||
| 195 | if (format == QImage::Format_RGB32) { | 195 | if (format == QImage::Format_RGB32) { | ||
| 196 | quint32 *data = reinterpret_cast<quint32 *>(xcbImage->data); | 196 | quint32 *data = reinterpret_cast<quint32 *>(xcbImage->data); | ||
| 197 | for (int i = 0; i < xcbImage->width * xcbImage->height; i++) { | 197 | | ||
| 198 | const auto imageSize = xcbImage->width * xcbImage->height; | ||||
| 199 | | ||||
| 200 | bool sanitationNeeded = false; | ||||
| 201 | // Check the first 1000 pixels. If they don't have any bogus alpha values, assume the entire image to be sane. | ||||
| 202 | for (int i = 0; i < qMin(1000, imageSize); ++i) { | ||||
| 203 | if (data[i] != (data[i] | 0xff000000)) { | ||||
| 204 | sanitationNeeded = true; | ||||
| 205 | break; | ||||
| 206 | } | ||||
| 207 | } | ||||
| 208 | | ||||
| 209 | if (sanitationNeeded) { | ||||
| 210 | for (int i = 0; i < imageSize; ++i) { | ||||
| 198 | data[i] |= 0xff000000; | 211 | data[i] |= 0xff000000; | ||
| 199 | } | 212 | } | ||
| 200 | } | 213 | } | ||
| 214 | } | ||||
| 201 | 215 | | |||
| 202 | QImage image(xcbImage->data, xcbImage->width, xcbImage->height, format); | 216 | QImage image(xcbImage->data, xcbImage->width, xcbImage->height, format); | ||
| 203 | 217 | | |||
| 204 | if (image.isNull()) { | 218 | if (image.isNull()) { | ||
| 205 | return QPixmap(); | 219 | return QPixmap(); | ||
| 206 | } | 220 | } | ||
| 207 | 221 | | |||
| 208 | // work around an abort in QImage::color | 222 | // work around an abort in QImage::color | ||
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