RGBCube/serenity
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4 commits

Author SHA1 Message Date
Andreas Kling
86eae0f8df Let userland retain the window backing store while drawing into it. 
To start painting, call:
gui$get_window_backing_store()

Then finish up with:
gui$release_window_backing_store()

Process will retain the underlying GraphicsBitmap behind the scenes.
This fixes racing between the WindowServer and GUI clients.

This patch also adds a WSWindowLocker that is exactly what it sounds like.
 2019-01-24 23:44:19 +01:00
Andreas Kling
dbe83f3a83 Make it possible for userspace to alter window title/geometry. 
I'm not in love with this syscall API but it allows me to make progress.
 2019-01-20 06:04:13 +01:00
Andreas Kling
dff70021ab Make it possible to invalidate only a portion of a window. 
Use this in Terminal to only invalidate rows where anything changed.
 2019-01-18 04:37:49 +01:00
Andreas Kling
b673c1a77d Build Painter & friends into LibC. Use it in the GUI test app. 2019-01-14 20:02:51 +01:00