[Haiku-commits] r31213 - in haiku/trunk/src/add-ons: accelerants/nvidia accelerants/nvidia/engine kernel/drivers/graphics/nvidia

[Axel Dörfler]

Rudolf Cornelissen <rudolf.cornelissen at gmail.com> wrote:
> No, I think not.
> These are accelerant hooks just like setmode, proposemode and such?
> And: does the app_server actually use it, and how? Is there doc on 
> this?

There are three new (optional) hooks, there are no docs available, but 
this should help:
1) status_t get_edid_info(void* info, size_t size, uint32* _version);
	You just copy the edid1_info, and set version to EDID_VERSION_1.
	If you support EDID, you should implement this one.

2) status_t get_preferred_display_mode(display_mode *preferredMode);
	If you don't have EDID info (for example, because it's a laptop/TV 
display that does
	not support EDID), you can implement this function to tell the 
app_server that it
	should use a certain mode by default.

3) status_t get_monitor_info(monitor_info *info);
	If you don't have EDID info, you can implement this call to provide 
extra information
	about the monitor. This info is used in the app_server to store and 
restore
	settings; if you attach a new monitor, a setting is reused if it's 
the same model of
	an existing setting.

This is all used to choose the right mode on first boot, such that you 
usually never have to use the Screen preferences application at all. 1) 
is implemented by the Intel Extreme, Radeon, S3, ATI and VESA drivers, 
2) is implemented by the Radeon, and ATI driver only.
And yes, the app_server makes use of all three hooks.

Bye,
   Axel.