| Summary: | Capturing small rectangular regions fails | ||
|---|---|---|---|
| Product: | [Applications] Spectacle | Reporter: | Jan Wiele <jan> |
| Component: | General | Assignee: | Boudhayan Gupta <me> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | jlj.babydragon, kde, mrbm74, niklas, peter |
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | http://commits.kde.org/spectacle/45751d7d8bc2a24abf75644d010018875c17daef | Version Fixed In: | 16.12 |
| Sentry Crash Report: | |||
| Attachments: | Broken preview of small rectangular area. | ||
|
Description
Jan Wiele
2016-04-28 23:14:53 UTC
To receive the distorted cursor: Enable to capture the cursor, take a new screenshot, select the region to capture, move the cursor into this area, press enter. Regarding the broken file: I'm not sure where the 0 Byte file in my test files comes from, but saving a file with a distorted cursor seems to work fine. I'm assuming saving works all the time I have similary issue, full screen works nicely, but area is not. Dpesn't matter size of area. But the picture is visible if I drag it from the preview area, but exporting to gimp shows an empty picture with the size of the area. Manjaro - spectacle version 16.04.0, KDE framwork 5.21.0, QT 5.6.0, xcb I have the same issue too, "Rectangular Region" mode capture nothing. KDE framwork 5.21.0 Qt 5.6.0 xcb Hi, Works again with 16.04.1. Created attachment 100251 [details]
Broken preview of small rectangular area.
The preview for a small rectangular area is still broken for me with 16.04.3.
I've attached a screenshot.
Can confirm this issue with Plasma 5.8 on Arch Linux (though the problem is older). Using xf86-video-modesetting (xorg-server 1.18.4-1), mesa 12.0.3-2, Linux v4.8 with i915, i7-6700HQ.
Anything with a width smaller than 403 (e.g. 402x21) results in an empty preview (no idea if smaller heights cause issues, I could not make the height smaller). Invoking this->pixmap()->save("1.png") in KSImageWidget::setScreenshot does show the selected area though.
Previously reported as bug 359184, another duplicate is bug 365741.
9x340 is also visible, 9x339 (and some smaller) are not. What is special about 402x339? Looks like it is size of the preview area.
mPixmap.load("1.png") with the same pixmap that failed to load somehow DOES show up in the preview. How does this work...? Strange Qt bug. (qt5-base 5.7.0-3)
Git commit 45751d7d8bc2a24abf75644d010018875c17daef by Peter Wu. Committed on 11/10/2016 at 21:01. Pushed by peterwu into branch 'master'. Fix broken previews for small selection The use of QGraphicsDropShadowEffect in KSImageWidget enables opacity. When the previous format is RGB32, it can be converted directly to ARGB32 with no data changes (assuming that the pixel data really has the format 0xffRRGGBB). Apparently the data returned by XCB has varying values (including zero) for the alpha channel which violates the RGB32 format and results in fully transparant pictures. Explicitly set the bits to fix this. REVIEW: 129135 FIXED-IN: 16.12 M +8 -0 src/PlatformBackends/X11ImageGrabber.cpp http://commits.kde.org/spectacle/45751d7d8bc2a24abf75644d010018875c17daef *** Bug 365741 has been marked as a duplicate of this bug. *** *** Bug 365782 has been marked as a duplicate of this bug. *** |