#14940: Support non-rectangular (shaped) windows
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Reporter: mmu_man | Owner: looncraz
Type: enhancement | Status: assigned
Priority: low | Milestone: Unscheduled
Component: Servers/app_server | Version: R1/Development
Resolution: | Keywords: clipping, BPicture
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by looncraz):
Update:
I think I want to go another route for shaped windows that ties in better
with compositing without the need to manage an alpha mask, BPicture,
BShape, or any other object.
The idea is simply to treat alpha 0 in the canvas buffer as click-through
(thereby shaping the window).
This comes at very low cost with client-side rendering and the BCanvas
idea I have (where BCanvas takes over drawing and belongs to a window,
view, or bitmap). I have something of a detailed write-up about it,
actually, a live document you'll find here:
https://github.com/looncraz/haiku/blob/compositing/CSR_Worklist_Proposal.txt
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Ticket URL: <https://dev.haiku-os.org/ticket/14940#comment:4>
Haiku <https://dev.haiku-os.org>
The Haiku operating system.
