[haiku-bugs] Re: [Haiku] #8612: app_server needs to be multi-head aware
- From: "axeld" <trac@xxxxxxxxxxxx>
- Date: Tue, 29 May 2012 17:54:01 -0000
#8612: app_server needs to be multi-head aware
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Reporter: kallisti5 | Owner: axeld
Type: | Status: new
enhancement | Milestone: Unscheduled
Priority: low | Version: R1/Development
Component: | Keywords: multiple display, multiple crtc,
Servers/app_server | multihead, multi-head
Resolution: | Blocking:
Blocked By: | Platform: All
Has a Patch: 0 |
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Comment (by axeld):
Another option would be to clone the accelerant for each head; this would
allow to implement it with minimum changes to the interface.
Also, there is no need to actually break compatibility: just create a new
API together with a new HWInterface implementation, and let the app_server
support both.
The accelerant interface needs a redesign anyway, if you want to prepare
it for drivers capable of supporting compositing. Ie. the app_server needs
to maintain the memory for the graphics card in order to allocate blocks
for textures as needed. The remaining acceleration functions need to be
able to work on blocks of memory rather than one screen, etc. Even support
for 32 bit hardware mouse cursors would be nice to have for a start :-)
There is little reason to try to squeeze it all into the existing
accelerant API which isn't really adequate anymore.
--
Ticket URL: <http://dev.haiku-os.org/ticket/8612#comment:2>
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