Revision as of 19:20, 21 September 2017

mm:u

NVIDIA multimedia (NvMM) platform service.

Cmd	Name
0	?
1	?
2	?
3	?
4	module_init_clk
5	module_deinit_clk
6	module_set_clk_rate
7	module_get_clk_rate

vi:u

This is "nn::visrv::sf::IApplicationRootService".

Cmd	Name	Notes
0	GetDisplayService	Returns an #IApplicationDisplayService.

vi:m

This is "nn::visrv::sf::IManagerRootService".

Cmd	Name	Notes
2	GetDisplayService	Returns an #IApplicationDisplayService.
3	GetDisplayServiceWithProxyNameExchange	Takes an input u64 and u32. Returns an #IApplicationDisplayService.

vi:s

This is "nn::visrv::sf::ISystemRootService".

Cmd	Name
1	GetDisplayService	Returns an #IApplicationDisplayService.
3	GetDisplayServiceWithProxyNameExchange	Returns an #IApplicationDisplayService.

IApplicationDisplayService

Cmd	Name	Notes
100	GetRelayService	Returns an #IHOSBinderDriver.
101	GetSystemDisplayService	Returns an #ISystemDisplayService.
102	GetManagerDisplayService	Returns an #IManagerDisplayService.
103	GetIndirectDisplayTransactionService	Returns an #IHOSBinderDriver.
1000	ListDisplays
1010	OpenDisplay
1011	OpenDefaultDisplay
1020	CloseDisplay
1101	SetDisplayEnabled
1102	GetDisplayResolution
2020	OpenLayer
2021	CloseLayer
2030	CreateStrayLayer
2031	DestroyStrayLayer
2101	SetLayerScalingMode
2450	GetIndirectLayerImageMap
2451	GetIndirectLayerImageCropMap
2460	GetIndirectLayerImageRequiredMemoryInfo
5202	GetDisplayVsyncEvent
5203	GetDisplayVsyncEventForDebug

ListDisplays

Takes a type-0x6 output buffer containing the array of #DisplayInfo output entries. Returns an output u64.

OpenDisplay

Takes a #DisplayName as input. Returns an output u64, the DisplayId.

To open the default display, input string "Default" can be used.

OpenDefaultDisplay

Returns an output u64.

Probably not (?) used by newer official user-processes, since those use OpenDisplay with the default string instead.

CloseDisplay

Takes an input u64, DisplayId.

SetDisplayEnabled

Takes an input u32 boolean, and an u64(DisplayId?).

GetDisplayResolution

Takes an input u64 DisplayId and returns two output u64s.

OpenLayer

Takes a PID-descriptor, an type-0x6 buffer, a #DisplayName(which was previously used with #OpenDisplay), an u64 ExternalLayerId, and an u64 AppletResourceUserId. Returns an output u64.

Official user-processes use an ExternalLayerId stored in a global state field if non-zero, otherwise:

When AppletResourceUserId==0, #CreateStrayLayer is used and the output from that is used for ExternalLayerId.
When AppletResourceUserId!=0, {unknown cmd} is used and the output from that is used for ExternalLayerId.

CloseLayer

Takes an input u64.

CreateStrayLayer

Takes a type-0x6 buffer, an u32, and an u64. Returns two output u64s, first u64 is an ExternalLayerId.

DestroyStrayLayer

Takes an input u64.

SetLayerScalingMode

Takes an input u32("ScalingMode") and u64.

GetIndirectLayerImageMap

Takes a PID-descriptor, an type-0x46 buffer, and four u64s(last u64 is AppletResourceUserId). Returns two output u64s.

GetIndirectLayerImageCropMap

Takes a PID-descriptor, an type-0x46 buffer, four floats, four u64s(last u64 is AppletResourceUserId). Returns two output u64s. The floats are stored immediately after each other(32bits).

GetIndirectLayerImageRequiredMemoryInfo

Takes two input u64s. Returns two output u64s.

GetDisplayVsyncEvent

Takes an input u64 DisplayId and returns a handle.

GetDisplayVsyncEventForDebug