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Bug 3644 - Wayland touch event support
Summary: Wayland touch event support
Status: RESOLVED FIXED
Alias: None
Product: SDL
Classification: Unclassified
Component: video (show other bugs)
Version: 2.0.5
Hardware: All Linux
: P2 enhancement
Assignee: Sam Lantinga
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-05-09 07:24 UTC by Moritz Bitsch
Modified: 2017-08-21 18:19 UTC (History)
1 user (show)

See Also:

Attachments
Wayland touch event patch (4.62 KB, patch)
2017-05-09 07:24 UTC, Moritz Bitsch 		Details | Diff
Wayland touch event patch with noramlized coordinates (5.32 KB, patch)
2017-08-21 09:03 UTC, Moritz Bitsch 		Details | Diff
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Description Moritz Bitsch 2017-05-09 07:24:31 UTC 
Created attachment 2729 [details]
Wayland touch event patch

Hello,

Attached is a small patch which enables multitouch events on Wayland.

Please review and release the changes as per your policy.
Comment 1 Alex Szpakowski 2017-07-14 02:20:47 UTC 
Touch coordinate are supposed to be normalized within [0, 1] in the window (for direct finger touches), or normalized within [0, 1] in the touch device (for indirect touches, e.g. trackpads).

The X11 backend does pixel coordinates right now I think, but that's a bug. All of the other backends do proper normalized coordinates.
Comment 2 Sam Lantinga 2017-08-11 18:15:55 UTC 
Moritz, can you take care of normalizing the coordinates and testing your patch?

Thanks!
Comment 3 Moritz Bitsch 2017-08-21 09:03:47 UTC 
Created attachment 2867 [details]
Wayland touch event patch with noramlized coordinates

Updated patch to normalize coordinates and tested with wayland on multitouch touchscreen.
Comment 4 Sam Lantinga 2017-08-21 18:19:53 UTC 
Added, thanks!
https://hg.libsdl.org/SDL/rev/5893a480c519