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2f2f28f2127b83ff3454b8b7c42cada550fdbf10
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4 Commits

Author SHA1 Message Date
Andreas Kling
2f2f28f212 Kernel: Refactor Region/PageDirectory ownership model. 
Make PageDirectory retainable and have each Region co-own the PageDirectory
they're mapped into. When unmapped, Region has no associated PageDirectory.

This allows Region to automatically unmap itself when destroyed.
 2019-01-22 05:06:22 +01:00
Andreas Kling
a47f33bed3 WindowServer: Map shared GraphicsBitmaps read-only on the server side. 2019-01-21 19:27:23 +01:00
Andreas Kling
76a2881793 Mark the two Regions used GraphicsBitmaps as explicitly shared. 
This fixes a goofy problem where forking a GUI process would cowify the
GraphicsBitmap for everyone making a hue confusing mess.
 2019-01-21 05:18:28 +01:00
Andreas Kling
7e5b81fe48 Make a SharedGraphics directory for classes shared between Kernel and LibGUI. 2019-01-19 23:22:46 +01:00